Loading...
HomeMy WebLinkAboutWPO202000039 Plan - VSMP 2021-02-05 (3)• : l A ' . .• . ' : :IL(H� :: ( 1I I \ / - \\ \`\\ \ \\ \\ 678.02' \\26743 692.8 6770' \68y f67' .( \ INV. lN= 83.$6' 15":RGP (N). I I I _ 'i' / / // - 692- �\ \ \ \ \ \ \ \ \ \ \ 677.58' s \ \ \ \ \ \ \ \ \ \\ tD a INV. 1N=6 .:40' 12" H©P. (W.- : I I I f - - - - - �Q I i/ / 6g0 �� ^ INV. N,; 044.13; 4"(BLDJ :: l I I J ft IN O - 83. 01 TJ�, ° RC.f'" S9� J / 689 \ 8"DEG7.4T / C9 691.77, 690.53' \ / / / // \ \ \ \ \ \ \ \ \ \ \ \ \ \ 6 ` \ / / �� 693.02 90.73' \ u\\\\�\\ f \ 6y \\ \ \\ \\ m\ o \ s \ \ \ \\ \ \ \ \ \ \ \ \ INV = 67 64' \ \ \ \ \ \ \ \ \ \ \ I / ✓ II \ / r \ ` ` \ \ \ \ \\ 1ZDkC 'Lb I / G s r � i � --�-� / 5 II/ sszsr �/ \ \ \\ \ 1 \ \ \ \ \ \\ \ \ \ \\ I I I II I . / 1 1 1' I TO 692.94' / I < \ ) \ I I \ \\\ \ \ \ I I V �P/� // e I / 1 b h q 1 \ \ \ \ 1 I 694.72 GP/ \ / ` / / P=692.83' / \ / \ \ \ S - / 11 693.02' I 90117 689.89' T=689.90, \ \ \ \ \ CHLI SEES ETC / 693.II / / rOPk9z.6a' 6"O `66 ` \ \ `. ` \ \ \\ \ \ \ ` 1\I I I \L\\\\\\\\ \ \ \ I ^• I I i rh �''4�'',�. B07=690. INL 1'NYLO \ 0 \ \` \ \ \ O � ELEC. 0 G � v' INLET (TYP) / 0 S�,hNr'' / O O TOP=692.82' 1 %A,,/�� \ \ \ \ \ \ \ \ \ \ \ \ \ \\ \ \ \\ \ \ \ / 694.1 I I / 6" DES \ \ \ \ \ \ I \ �\ \ \ B0T=690.50' \ \ \ \ 1 \ \ \ \ � 9 1 \R I - / Y \ \ \ \ \ 1 I / I/ ' c'G FF680.75' .G 1 1 \ \ \ \\ \ \ \ it / 691.50' _� \ \ \\ \ \ m / TO P� / / I j SO INLET / \--680.58 - - - \ 680.4fi' \ \ \ \ \ \ \\\ I \ \\\ C I \ \ \� \\\ \\ \ \\ \\ \\ \ 1 rn o p 1 i'HNYLOTOP=691.85' - s B PROPOSED \ \ \ \ 1 / sss.s8/ / rp 1 INV OUT=68730' 12"HDPE - / MOVEMENT ADDITION-----_13 __- 1 \ / - _ _ l t_ \�� FFE=693.42' FFEi 93.42 FFE=693.42' \ \ \ \ �N \\ APPROXIMATE LOC co / _ _ \ \ \ \ \ \ \ \ \ ` EX FIBER OPTICS VAULT. o 696.17' _ TMP 56-64E I 1 \ rn \\ 1 \\ \ rn TC/ / r _ 693.42 FFE 693.42 \ \\ \ i \ \I 1 \I \ \ \ \ Z_m \ / 693.50' 1- I \ \ A CONTRACTOR TO VERIFY i� _ 0 3. fi - _ COUNTY SCHOOL BOARD OF Tw 680.75' 1 cr \ \ pN \ \ \ 696 I - = =- _ - y EXISTING CROZET ss2.32' 693.32' 1 LOCATION PRIOR TO / - Z I- - ALBEMARLE COUNTY, VIRGINIA 1 I \ \\ z \ \ I \\ \ rn '- a 9/ -' ' ELEMENTARY Ts I 1 1 1 1 1 \ I \ CONSTRUCTION. f S G / , - I DB. 1044, PG. 498 693.32' I I \ o m \ \ \ \ \ / SCHOOL BUILDING Bs 694 81' I \ \ \ \ \ \ \ \ I� to 692.32' 692.54' BW 1 1 I 1 \ \ \ 95.50' 1 DB. 1098, PG. 703 693.42' J 1 �' 1 I \ APPROXIMATELOC / / / / /J / / PROPOSED ZONED: RA(RURALAREAS) gw g5 /j / _ 693.32' I EXCOMM LINE. / 1 / I 6 _ KITCHEN 693.93' TIN \ \ • \ �/\ l 1 / / - I TW CONTRACTOR TO VERIFY / / ADDITION 694TIN BS LOCATION PRIOR TO / / / / / O TIN 6973 2 ssz.32 Bw Q O 694.81' 692.33' I 1 \ \ \ \ I \ \ / / \ \ \ CONSTRUCTION. / r l I- / / ^ - _ I \ \ � \ I FFE'702. \I `\ 698 I I 1 1 \ \ \ \ \ ` \ \ / � \ 693.42' 1 I I \ � / \ \ TC / ' TO / TW I I .\ I I I \ 1 \ \ \\ \ \ \ \ \ 1 15, WIDTH UN ERGROUND / / /698.06' / 699.44'\ UTILITYEASEMEN FOR VIRGIN I / / // / \ _ TIN BW o` \BW 5 6BW82 1 I r 11 I I �o \\ \\ \ \\ \ \ \ \ \ ELECTRIC 90WER COMPgNY TC - \ I 11 I \ \ \ \ \ \ \ \ I 1 OB. 110Z P . 3f0 // l / EP K'698.13 - -' ` \ 702.96' 704 694.53' 693.03' 692.Jo" PROPOSED II II / 697.62' /Z °°""° t I TIN _ BW32 CLASSROOM I 11 II I I I \ \ \ \\ \ \\ \ \ \ ) \ \ \ \\ \\ \ \\ ' BW 693.32' BA \ FF702.35' / I o - t \ 0 703.74' 695.05' 695.0�1' �1 / I I ' I I I I I \ APP AREAS d 1 \ \\ \ \\ \ \ \ \ II I .I q. ssBS s \ ADDITION MEN 699.18' TVJ _ w $ a -� - "` es \ Tw ssass' 1 \ \ \ \ /yP / II I I (/ I /oDl / 702.18' - - - - - - - - - - - I - - r ^10 - _ 7�3 BW \ 93.0 695.03' / / I 1 I 1 I 1 \ \\ Rt'C\E 1G�y PLANT WH/pS I I =/ rn I 702.74' 03.95' I \ 1 1 1 / co BS .4 /1 / \ 702.74' \ 70395� - ' \ �\ _ _1p 693.55' _ - 695.15' TW 694.81' / = 699.1 @' - 703.24' - _ 694.81' TS 1 / 702. 703.85' \ 696, 9C II I = .18i ° \ 103 703.69" / 703.85' / TIN _ 693.42' 701.17' TS \ \ • • \ / 3 / TS 697.57' "69 � " TS - _ T ` 693.41' I a I = FFE=702.35' 702.48' I 70 / 6�JT.67� w� CONC. DIVERSION �7 1 1 \ 1 \ \ \ �` I I \ _ \ \ I 703.08' 6�7.76� BW / / / 1 I Y I W' \ I TC 10/ _ - -70 ` \ ` \ 7 ' \�_ 98 - :69_7;£7�fi89:44'�: ;. \ BS 693.38' // / / I \\ O^W/MHO \ \\ 1 \\\\ \ _ BS \ 7-0353 / / ' _ 02 - I \ / 699. 1' I TW TW 700.98 o,\ 7Q2 TS - j02 I b b 4 : �. : r / / / \ I I / fi7 TO-67�' \ II 11 _f 702.23' 702.23' _ 703. 4' / 8' 6 - \ \693.38' ( / 1 I / �\ \ \ \ I \ \ 700.80' 8"DEC 8"DEC 8^DEC 698.18' \ \ . i 6 3.42' 5FE=693.42' / , \ \ \ \ I \ 4 4C I f , 696.8T Q _ 700.65' _No,.0 y \ 97.29' \ i 1 , \ �1 ` \ \ \ \ \ \ I II�� V' BW �700.95' 701.93' TO BC ' \; : \:\ \ / / , 1 \ \ ' \ I \ IB97.37' ( E S BW BS 701.53' 701.99' 700.88' ,� 700.78' / TC \ 696.97'� I I I I \\ I 1 1 1 I I I I \ 697s� \ _ A� \ 699.56' \ 700.6700.94' \ 700.85' 701.52 701.40' 701.69 . ° / / \ 1 I \ \ \ \ 01.7 ' ,� / sss.25' / \ �' . \ ILO F : 68(�'.75 / JI \ , I I °"` 700 \ L1 FFIE: 693.42 / \ I I I \ \ \ \ \ \ \ \ \ I I I I \ / TC ° ° LTC I / fj / 1 697.�e 1700.73' 701.20'/ °"°°_"°°° TC TO 1 a� \ \ \ TC-BC TCBC- 701.35- TO PC 701.89' I 701.22' 700.�9' \ 697.81' 696.42' I / / I / \ 1 I \ \ \ \ \ \ I I T 6 0 p I NT41'- - 1 TC-BC _= TC-BC0030 -1 \ RIM \ BW �.: \ / / / 98.10' 1 rp0 O 700.55' = 700.62' EP = EP 700.72'-700.g0�i - -W- W' fi93.48' \ 1 v \ \ \ \ \ q _ 0 7o1.5a' 7o1ss' o 0 9 s s:: I I D I 1 C9 IL I Aj \ -lit w LW " ^ �� 6°j O �o_ RIM G96.a7, .51':- . \: \ \ \ I I \ \\ \\ \\ \ \ \\ \ \ \ \ \ \ I I l TC TO TTT� / &96.75' r, TS • . :. \ :\; :: \ :: \ I 1` \ TC O I ` 698.1�G' 699.22' 701.06' = 701.18' 700.68' /700.62' / I SD URB /NLI ET W/ GRATE 697.45' \ _ _ - - / / 696.88' \: • \ . - I \ w \ \ \ \ IN . OUT=6�.37' 15"RCP I I I �� I TO 8„ b� q� 4 - �o_�- iN' 697.52' 696.08' 69 . T Ur _ (iGe _ UGP _ _ UG mot" UGP UGP _ 8 694. 690.76' � \ \ \ \ \ \ \ \ \ / \ 697.97' -UGP =z _ _ v 1 �_- 8" _ 12" 8" - \ :C : \' \ \ \ TO 696.19' I I I 1 15" RCP \ I \ \ \ I N I -------- -�------_�--- - -- ------ - ___-- -- ---- -- _= I __ -- -- -- - - ----- - --- ---- - --- -- --- - --- - - ---- \ \ I II I l / 0 / I / ---�\ --- -Z 15"RC \ 681 I 09 SD CURB /NL T W/M I I I I a I I TO I / / 1 - - - - - - - \\ \ -696. 6 Yr°� TO 697.00' / 699 22'8.67' 1 \ 1 5\ 'i2S "DEC 696.90' \ • ; ' • 8 \ \ 68 \ \ \ -' \ IC9 I 1 L / 1 INV /N=687 7'1 R P \ ` I 6� INV O T=68Z 5' 15" R� P TC N,. ;rD_. d 1 \ \ \ O \ \ \ \ m \ I \ 70 M 6v .: ' 1 \ \ \ S\ 6t \682 \ \ 00 \ \ \ vN \\ \ 1 I / SEE DETAIL THI SHEET 1 \ EP 696.86' 692.67 691.5 ' �' \ \ \ \ \ cq \ \ \ CP \\ \ \ \\ z I i L \ \ I \ \ \ E L \ \ \ I I I / 00 \ 07 ey \,9� \' I Z I I , 0g 7 I 68.98' 10^ C 'o� \ \ 9"\\ 69j 1 I I I I I 1 0/ /1\N 99.00' 1 r/X > 'O\ \�\ s9B1� 697.78 \ h I I I I I II II \ \ \\\ \ \\\\ I I (p TO T I I TC I I I I \\ \ \\ I I 699.14' 6 8.88' I I #197.513\683 \ \ \ I / \ V I �I I 699 699 TO I Tc 7 \ \ \ \ A 699. 2' 1 \ \ ss .a8' \ :d I I I \ \ \ \ I 69 98' / 701.15' / 702.32' ' \ �� -� �- \ 700 32' \ \ ` / 1 1 I TO .\ \ 00 / / D I ` 1 JGp / \ \ II EP I I � - _ I/ I 7,E1IS1' I I _ - �' -TC I / / 1 I � I � i \ \ 683.78' \ ` \\ \\ \ \\ \\ I rT� ��� TO \ 702.17' 1 - - \ / I \ TC TO 100.19' - - 7 0 - - - - - 702.41" �❑ TO - - - - - 1- - \ - - TCCL �\ \ \\ \ \ 699.80' 700.33' T702.43)- / r - C 697.22' 700.93' 700.77' /, 700 / 03.58 702.42 / I 6980 3' / / % I I cc \ \ \ \ \ \ \ X.=674.5` / I _ \ 700.65' 1 TO 02 / T SETBACK TC / Ir 1 1 T I p IP \ N O \ \ OPEN dND1�\ 1 700.65' \ II TO 7 2.51' / ) ' FRON6s7ss' / / 1 1 I I I I 1\ 684.1 \ \ \ O II I I I----\`702.74' / \\ ra`�^ / /rn Z - I I `_ �� - 1 I D O r I I 1 \\ ti III �x I TO `�� TO �� i �I / 6• I I 701 73' 701.53' / - 701.E4' \� i / 10^ / / 70�86' TO a JA/701.95'IO SET / / I I \ 700.941�--- _ 72.05' TCI\ TO TC-1TTO 2_07' -� - - C �'`�702 \ TO \ I 1701.9T // 700./2' / / / 6963116 / I Imo- \ \I \ �\ / \ \ Z I i i I / / -^ 702 702.13' - - - - 702.80' I TC�p / _ - ' / / / / /\ / / / / 11 I TO TCq PE TO - - - - - Ilm Oyq - - - 703= - _ _7 44-- - - - - - - - - - - 20'WATERL/NE EASEMENT 1 I r - _ _ - 01.11' ` 700.59' ^ / / / - ' / / / / / b"e3 1/ / / Zbd/ I / i ' �" 70 \ INV 681/56' ' 702.08' - / �+y 7 Iy iA/P 86 \ 8" D C \ OPP. END NOT FND_ _ ,) \ \FOR ALBEMARLE COUNTY I / 698.4 '� / - / i' / /r ( / / ` 6 _ - I } _ oQ - _ SERVIG'E AUTHORITY \ I - / - _ _ _ - I _ �F TC� _ / 6 DEC / / 8" DE ' - - DB. \I �63, PG. 28 11 r \\ i ' �696.61' _ - �6i C / / / / / EP / ' - I o I I TO 700.18/ / _ i695_ - - - OR/PL TREE �- - / i� S_ 1 / _ 700.28' 699.74' I I I 1 _ \�Odn EC / I' IUFO __ _. 1-�- -� F i / _ _ _ _ i _ - _ ' - sir_ _ _ _ - _ _ s / _ 8"DEC 1 T / 15"CMP - ' - - '' �' _ _ - - _ _- I 12"DEC / _ - - - - - - /TC /-INV-(BUi)=694�11 ,/_ 699.84' _ / 1 1 APPROX. TREE o OF / / //l01.61i I / p� / i ��_-� _EX OF (TYP.) / / 15" MP / _ - _ \ ` \ \ _ EP 684.66' 704- -VARIABLEWIDTH PO INV. (lN)=@98.¢5 ` 686 I VIRG/N/A o \ / / / / FP - - 15 CMP =-t-__ I 1 \ ` \ ` \ \ ter• EX \ \ / ELECTRIC POWER COMPANY / / / / / 700� 685.97' \ r \\ C9 DB. 1101, PG. 310 705 705.00' I / / / / mom tw I 705 To - - ' �/� ' \ I \ I \ \ \ \ \\ �\ ` I _ _-_- -----� �I 705. \ \ -'TC �' -_-';- � �-i,,_-,,_-' ----- \ I \\ �\ \ \ � �- I I / / / I _ t UFO 93' FANow I� QHf\'y-�• 0 Z - - T5.- E3• -7 - = _ - - - r= = - - - - - - - - - - - - - - - - - - - ` °' \ -� \ -UFO / - \ �P ANAGE4j - ` \ I \ m I��- •\--7 I oloI / / / n- \ UFO _ � \ �+ O 1\ / / / / / / l `/ I \ UFO / / Cp C)HP' --dHO_`T05-- -------------\ `\\ \\ 1 \woo I / / / \ \\ ® \`FO % /// �f //0-OHP�/ \I _� ---- - - - - -- l0 =dID [EX p mom/ r / I \ \�UFO SANS --i -_- - - - \ dJ84.47' \` 1 11 / /// -/ I // / \ \ _ 18t1'FO- _ ___ --1 _ �� / ,/ .' / �OHP/ 1 `� \ f OS \ \ / / / \ \ UFO ( EX / HO / / //�\-UFO / OF 705.02' �W� IR OHf \ -- � - - - - - -_ -705; COP- s_ _ _ _ _ _ _ _ _ _ _ \ _-_ _ RBJNLE2 --- _-_-SD-CIIW/6RAT " --t `/j� ----------- --- ------------- -----------------------1Vl;,'e/1 s4. x2'5'MCP--- I\1\�'/ \ \\ \ \ \ / / I MHD ->70 ` \ \ \ \\ `� `---_ \ r' / TOP=695.77' 710 - \ _ _ �� INV. IN=691.71'15"RCP -_ -- ------ -------- - --' �_ __--_-_-_--- `� \ \ \ \ \ - ( INV. OUT=691.62'18"HOPE - - -__-__-_-= -_-_-----_-� �710- ----__-_-��'' c ' SD INLET (GRATE) SCALE I"=20' - '- - 7 - J09----- / �' --- STEEP SLOPES MANAGED TOP=700.09' r _ - - , - _ ( ) INV /N=694.04'15"RCP / INV OUT=693.94' 15"RCP 0 20, 40' ADA GRADING DETAIL q ALE: 1" = 10' V AA D VMDO Architects vmdo.com 434.296.5684 200 E Market Street 2000 Pennsylvania Ave NW Ste 7000 Charlottesville, VA 22902 Washington, DC 20006 � 00090 s �0 0 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. • rbemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 VDOE Project Number 002-34-00-101 VMDO Project Number 1284 Checked By Designed By Drawn By Bryan D. Cichocld Z lie. No. 53741 yS87� �`rSIONALG B. CICHOCKI K. ROESER K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 GRADING SPOT SHOTS PLAN C5.2 ROCK \\ARMOR �1 1 rROCKARM�R \ \\ 11 \ \ I , I I ' _LLJ ---- `- Y, i l 1 1 I 1 cWi II \ I I LWL I \ \ 1 I I m 1 x \ I 1 1 688.67' ` 689106' ` 688,73' \ I 689.37' I /J689 / Q II \ I a0 0�o CIO I \s I I 690 689.85' O 11 CDm mD i \\ 1 9�. _ _ I \ 689.15' 1 I I 1 I I I I r - \ \ ` \ \ \ I \ I � � I II •• 11 1', 89.62' I 11 11 I II 11 I 1 \ 69 . 2' 689.95' I 690.45 1 I\ I l \\ \ I I 690.4 e \\ \T \ I 90.62' 1 \ I I I 1 I- - - 6 0.6TC ' \ I I 1 00 1 1 ' 11{1 00 o00 000 m cO 1 TC I I m cD CO C 1 , \ 1 1 ' I ITC TC I a I \\ , 690.4� / 6 9.87' r ' / I 1 I 1 309 1 I 1 \ 6 6$9.001 ' 1 1 / , 1688.92' I / I \ \1 c co 1 1 / , 688.85' / RIM cp I / 1 I I / 680.91' r09 / / / / / APPROX TREE 1 rc f Tc , I D / 31S / 690.40' 689.83'- ` D 1 1 1 1 1 1 1 1 1 1 1 1 1 \ \ \ / / If // , If \ I I / It BLOCKRATAIN/NG 1 : • C 1 : I : j : 1; I I / WALL 1.0' nW) It I I 1 If r:j::• 1 . 1. 1 � I / EXISTING SOCCER FIELDIf If T. co \ \ STEEP SLOPES I I I •I: L :: \ I \ \ \ I I I 1 1 / (MANAGED) I I 1 1; ij \ J \ \ I 1 I \ 1 \\ I I I I I I \ \ \1 �I \ \\ \ 1 1 N IMP 56-64E COUNTY SCHOOL BOARD OF ALBEMARLE COUNTY, VIRGINIA DB. 1044, PG. 498 DB. 1098, PG. 703 ZONED: RA (RURAL AREAS) I I I I \ \ IN,\ \ \ 1 \ I I \ I I I 1 I \ \ \ 1 Q 679,78` 679/4' '.7 I -C 675.04' 674.94' \ \ \ \ \ \\ \ \ \ \ \ \ \ 15"DEC 1 "=20' � � - �81.80' \ \ \ \ I (MA I 1 I I / / / _ - - - - - \ \ rn \ \ \ 681.90' , 1 \\ \ \ 12" DE,C / sa, s3, sa1.7a' . /. � 681 .SLOPES 18 \ \ o \\ \ \ \ 673.29' \ I \ on Du \ \ \ I \ \ 82.56' I-i MANA 673.19' • •\ - / \\ \\ \ \\\ \ \\\ \\\ 8„DEC can 683� / I / / �' .3'iE�PG LOPES -J / 683.55 1 / i/ �%/ - �/ / I - _ - M ED I1 \ / ♦\ \ 68 \ \ \ \ \ \ _ \ \ \ 1 / R4CE \ \ \ \ \ \ � \ \ \ 1 \ I I I _ I 1 \ \ \\ i 1 \�\sa1.2�' \ \\ \ 1 \ \// sue/\1II\/ p / 8T1 / 1 / I 1 878Y\ 1 I \ \ 683.80' \ I jj.•.•:��''/ _ (-/---------- --- 681.17 \ 6>I4 71• � '/' � 1 Ir 4 / � /' \ ♦ ♦ I , 'I I I \ \ 1 \ \ \ \ \ \ \ \\ \\ \ \ 11 \ I \ � t I / l ` \ m I I _ 684.'61 - - \- _ / §84.23' 8q �-/ \ .�.. :I..f: /L� l TC I I \ \ / / 5P� ( 10DE It STEEP SLID,p. 683.37 (CRITICAL SLOPES) , I - - - 6-83-21-' I\ \ \/ - - - 680,77P\ \ I bs 1 .' j':/:: /:;( I \ ♦♦♦♦\ 685.46' ':G: is •':.\\1 /,l _ \ / 1 --- 683.2T\ -�� ! _ ♦♦ A ii 9.95' A \\ \ \ \ \ \\ \\\\\ 1 can �0♦ \ \ ° 685.5 RlM 683.2T _ _ ` ?09 ENT 689. ` / ` 680.92� \ - - - _ _ - \\ / 20' SAARY SEWER EASEM . / / ♦\ _ BS \ , \ � ORAL �IARLECOUNTY \ \ \ \ \ \\ \ 1 \ 6 ♦ ♦ ca \ 1 \ \ RV/C AUT R/TY 68 - - 8Z ♦ 680.45' \ 1 � \ \ \ / / , I HP \ ♦ - / L� _ 6 RIM ♦ , \ D . 976, PG. 96 689.19' f _ \ \ \ ` . END /- 54' - - 685.58%683' _ - ' - -6 83 �\ 680.69' ♦♦ 1 \ \ / _ \ r - \ T8529' - / _\6 84. \ / co �\ 675.91'\ 685.�9' \ \ \ / P 6 _ �687. _ - 8$� ` \ \ \ ♦♦ 680.29' I \ 1 \ I I 9 S8S \ ♦ 680.2\, \ _AJ a: .II I 1 I / ,/,� Lao-�sa - -- i \ ♦_� I I\�� \ \ \ \ \ �cn \ \,\1 \/ / • .I, I I 689.3 as' /8"86.61' �Sg.59' - - _ s.-� - - - - - - 687 \ \ I I I I \ ' / _ L 679.76' 676. 8' •\ : I 1 I 23 / ^ / / ' / / _ - - - - ' 887.813' \ _ _ 689 \ \ \ ` \ \ ` \ \ \ ✓ , \ \ �\ '\ \ \ \ \ \ \ \ \ \\\\\ 11 / \ r I BS _ 690 I sas.zs' . sso38� O \ I 6 12' 87.42' / 688.07' � t \ I E 6• / I 9 687.86' 690.28' \ \ \ \ \ \ \ \ \ \ \ \ \ \ g\ \ \ 68 /1$' / 90 68_ \ \ \ ` \ \ \ / O \ \ \\ \ \ \ \ \ \ \ \.1 � \\ \ / 690.38' 6 1 / \ '� - ' / BS TS '- - 690.28' / \ _ ` \ ` ` ` \� / U \ \ \ \ \ ` \ \ �x ` \ \ ` \ \ O 67a av O 1 O \ MATCH INE -SEE SHEET 5.2 '�' 8 / � % � WS sso 691 6 'bE M \ ` \_ ` \ 678.02' 6R7.43 _ \m\ :�:jj: 1 \ 12'rDEC �0692.8 �\ 690.28' ` \ \ \ ` \ \ ` \ \ \ ` \ \ \ 67 8' \ \ \ \ \ \ \ \\\ \ \ \ MHO: , 1 I ssz.a _ - \\ \ ` \ 678.08' \\ 26s \ \ \ \ \ 1 /68 f / ` C ill \ / �, - - \ \ \ INV. IN= \ -692- \ \\ INV. IN=6 3A0' 92'HDRE: kl{, : I \ INV. N; 664:13!4"(BLDf:: / I I + / 0" J / �� \ V \1 \ \ \ ` \ \ _ ` I 69 J / P 1 + ` / }® \ \ \ \ \\ \ \ \ 67g INV. O-fi83:4, 0' 15"RCP 7 8"DE61\ \t\ \ \ `\ \\ \\ \ `\ �\ `\ \ \ %g_ \ \ 7.47 \ \ I I I I I ♦ /i' 11 691..p / _ 90.73' ♦\ �/ / S Sig) // /\ �`' \\ ` \\ 6'.90 \\ \ \` \` SBiS \` \\ \ \\ \ \ ` C(\\\\ \ \\ 6'jS \\ \\ \ \\ \ \ \ I>:9 (9b'N OPO�)�a�4'�tt,, \ '"w``••'1f \ \ INV.= 67 84It ' \ \ \ \ I ✓ / / \ 12"°kc \\ \\ \\ \\ ` �\ \e \ \\ \ \ \\I II11111 I \ 11 TC I L PY / 692.57' I TC N. / \ �� / 692.94' /, /� , I/ �y A \ l \ I / \ `\\ \\�` \ \ \ \ \ \ \\\ I I I i 1 IW1"=20'I \ \ \\ \ \ \ Q'/ I b I \y \ \ \ \ \ \ ® 1 I \ \ _ 693 \ fi„q P=692.83' ( \ \ \ \ \\ ` \ \. \ \ \ \ I o I I I I $ ' I 40' Q 694.72 GP/ T693-(/ \\ \ I al 693.02' I - , \ TOP9&.'9®Fy m \AG'ro689.89' T=689.90• V AA I VMDO Architects vmdo.com 434.296.5684 200 E Market Street 2000 Pennsylvania Ave NW Ste 7000 Charlottesville, VA 22902 Washington, DC 20006 � 00090 s �0 0 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. • rbemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 VDOE Project Number 002-34-00-101 VMDO Project Number 1284 Checked By Designed By Drawn By Bryan D. Cichocld Z lie. No. 53741 yS87� IONALG B. CICHOCKI K. ROESER K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 GRADING SPOT SHOTS PLAN C53 MHD \ I ♦ \ / 68 TOP-6$9.33' I I I 8 ° . \, / ♦ /, , - / - INV. III83.$6'95":RGP(N) I I I \\ . Q_a i % 218 216 0.40�_692- INV. INV.6 N46\ - - - .�• / - - - -690 ^ , 0.07 \ INV. O - 83.40' I I I ♦ 1 - 220 0.44 10.21 , so f 221 0.90 1 ♦ 238 0.88 '' BIORETENTION FACILITY /'. OD1 I 0.29 2C DRAINAGE AREA (VRRM DAB- LINE 6.b) I/ 223 0.3 / w"1 J % \ , Ir ° ° 693 / i 693 \ \ TOOPs691IWE.0 .6" r 0.11 TOP k92 84' %EC. P ° �'S b BOT=690. IN (T1'P) _ / To / r i LT °. °/ i l,4 :. 6" DES O O TOP=692.82' / 1 I 6gS /Doti 1 234 0.45 I I I ° / , / !OI - - SO INLET 3.42 �I EX 0.35 1'HNYLOTOP=691.85' , 0.06 v INV OUT=68730' 12"HDPE , CABIN - - - T& \ \ r - 696 - - - - -, _ _ EXISTING CROZET COUNTY SC Z ALBEMARLE / s96 - - - - - ELEMENTARY DB. 1 SCHOOL BUILDING DB. 1 PROPOSED ZONED: RL 6g5 16 _ - / KITCHEN \ 9� / ADDITION ° 69 1 15'WIDTH UNDERGROUND UTILITY EASEMENTFOR VIRGINIA ELECTRIC POWER COMPANY e - DB. 1101,PG. 310 /Z °° \V , ° -! J 401 0.90 al, ° aas I I I I I I 1 ° Ir. ..,. \ 703 ° , <701 a� \ I I I \ ° - 6 0 1 S c 1W 1l-" i b, SO CURB INLET W/GRATE l I L\\ ' TOP=696.02' (F/L) I / I ° _ _,S - ¢ 7 ° INV. OUT=692.3T 15"RCP I 1 / I 408 0.75 `\ \ _ 8"} ty,1 (J� �^ 4 - - ' ` x 402 \ \ / aj ° I , I 1 , 406 0.74 ' o / 402 0.78 1 i 9a 0.51 0.32 A 7 / 6 / I ♦ I \ / t I / I I 6g9 / 699 ; I J ° / ♦ / 150 / I I / / 1x - , ' ♦ 1 / 0.23 ' \ \t _ - I �7- 1 _ - • 0 - 7 ' RO T SET ACK \ 154 0.90 70 _ - \ - -Oy� - 703- - .1 _ _ _ 4 _ - - - - - - - _ 20'WATERLINEEASEMENT\ , 1 - - - - - - - - - - -�- - , \ FOR ALBEMARLE COUNTY- - I1 \ � 7og \ ` � 'SERVICE AUTHORITY DB. `1 �63, PG. 28 100*61 1 11 y _ - / - - - 703 8"DEC ♦ 5d.r' \ 8„DEC \_ozin _ l i ♦ 12"DEC / _ - - - - - - - - \ / // /I I I I 00 ♦�♦ PPROX TREE 152 0.84 UFO (TYP.) o .` / 1 15"AMP VAR/ABLE WIDTH PO f. INV. (lN)=@98.Q5'/ 0.07 V/RG/N/A o � �� \ / l - /L4 ECTR/C POWER COMPANY / - i �Ill�r / \ \\\ PfLOPE3' _7 _---' _-_-_------- ---- -- \\ ANAGE4j -Loll _ r - - - - \ \ \ 55b v - _ _- --- --- �\ g o dyo�.705 s -------- - - - - - \ I\ chyo / yo / / \ / 7 / 1 / W 10`' , 7-/ I �1111�I .59 ` �\_\ .6j9_ DEG t `\ � \ `\ \ \ �� `\ \ ___ �.\ \Is \ \\ \\ \\ ` 20 1` \ G 23 0.90 `\ \ \ \`\ `\ \\\ \\ I\ ° \\\� �\ /Nv s7s64\\\ y \ \ I I I 12"DEC 20 I \ \ \\ + + + + + \ \\\ \\\ \\ \\ \\ \\\ 111 �Jdlllllllll I CHLINE -SEESH ETC \`\ ` 1 1 I 50l 111 I �mmmmmm 11 1 IIIIIIIIIIJ I If \`\ PROPOSED T \ \ \ \ \` 54E BOARD OF JTY, VIRGINIA`\ \1 I \\ \ G. 498 a I I 1 I I 1 1 1 \ \ o m\ \\ \\ 1 I I\ \ G.703 , el a °♦ 1 II It 1\ \ \�`\ ~ z O� \ \ - r !AL AREAS) I \ \ 6cy ` \ \ \ \ �- / / \ 1 I I 1 \ \ p\\ 1 TD 0.75TD 90 0.11 704 \ \ PROPOSED - T J CLASSROOM 139 0.90 v� ADDITION / I 11 11 I I I APPRQJ� AREAS d 0.08 R�'C\E 7G PLANT WHtrs tp 03 '°� ° RL 0.90 // 702 '_6gg \ 0.23 / /\ // \\ 0 v1�I ",a I mot' ♦ � � � _; ; , a, „, 1 r/ `� 1 �• I /� `w; T -67�' 1' ° EC 8"DEC 1.777 If 0 If 136 0.78 - - 138 0.90 8„ 8^- 72" 8„ \ SD RB/NL TW/ D \ \.. \ \\ \\ 681 SWM #2 DRAINAGE AREA TOTAL 2.76 ACRES ss. (2.15 AC IMPERVIOUS; 0.61 AC PERVIOUS) 5 611, \: '�. d' \ 6 ` / INCLUDES TREATMENT OUTSIDE OF SWM LIMITS - \ ` o fl' \ 7' \ \ \ \ \ \ UNDISTURBED AREAS LIKE MILL &OVERLAY &RELOCATED \ rn i° : \ :: \ a'6 \ rn` \ ♦ o \ \ ` \ m \ / oo ROOF LEADERS THAT DRAIN TO THE FACILITY. AS SUCH MORE \ rr . 9\. ..\ \ \ 106 ♦ rn \ \ \ \IMPERVIOUS AREA HAS BEEN TREATED THAN IS WITHIN VRRMf° ♦ I \\ \ \ \ DA 'I (OUTFALL 2). \ co \ 6 \ (VRRM DAB -LINE 14.c) (VRRM DA C - LINE 14.c) CARRYOVER OF TREATED IMPERVIOUS AREA. CREDIT TAKEN FOR UNTREATED AREAS IN VRRM DA "C" I I I ♦ \ \ (OUTFACE 3) � � I I I 106 0.30 \ � ♦ \ \ \ \ \ \ \\ \ � \ \ a ` 5.95� \ ♦ \ \ \ \ \ \ ` \ \ \ • ' / O I BIORETENTION FACILITY \ ♦ ` \ \\ \ \ \\ \\ \ \ / \ 00 2A SHEET FLOW ♦ \ \ \ \ ` \ . \\ DRAINAGEAREA ♦ `\ \ `\ `\ \ 8 \ (VRRM DA B - LINE 6.b) ♦ \ \ \ \ \ \� SWM #1 STORMTECH ARCH PIPE DETENTION SYSTEM WITH -\ - - - ' 1 - ♦ `\ \ \ \ \\ \ A/��EE ISOLATOR ROW I ' / / / �1 \ \ ♦ \ \ \ \ \\ ` K474:5 ";' ' � ♦ \ `\ \ OPEN QdND� - ^ ANT SETBACK ` ♦ BIORETENTION FACILITY 2A \ BIORETENTION FACILITY \ \ \ ` \ \ `\ \ \ `\ \ 2A CONTROLLED \ \ \ \ 132 0.8,4 a / // I 11 \ INFLOW FROM SWIM #1 0.19 . a< I I \\ 6"ORIFICE „B,. (VRRM DA B - LINE 14-1 I\ /1-46 0.83 \EMER,° NCYA6pE`S9/ \ / 0.17 ' ' ♦ I SSWMI Aft /+CCESS \ (► c / IllIllt Ill A... '' '-t F .✓ <a °. "tea �. °°'/: �,'� �'J i' /\' /' /( 1,/ ,' / , lI' m\ 6"PIPE 1 _ / / pb j / I / I A \ INV=681.56' i ' Y / °^•' / // / 686 \ 8" DtC / \ OPP. END NOT FND� ' DEC 8"DEED / \ _ 146 / ' 500 - / - / APpRO TREE r-INV-(BUT)=694�11-' _�'f� - _.-__ -__--_ _-----_-_-\ 0 cp tp \ \\ >♦ - slow �_ / / / O/,IP' slow//OHPI OHP­­ LEGEND: I OH oHl 1 TOP=688.72' STR# C _ � I INV. 1N=685.26' 18"HDPE AREA r- / sn ry JPP ma cr All neon ,.,f..,, ,"_tee, ,o" �„ll - =r -_ - - uw / -dyp= _ / (VRRM DAB OUTFACE# , \ \ \ - - - - - - I, OHP // / / / (VR - 2) \ °a- - - - - - - - -705; -\ \ \ - �-ON / // / - -------------------SDE'LIRBJNLE2W/6RAT` ` "_---/ _ _ /II ( d�� / l _ _ _ _ DRAINAGE AREA TO BIORETENTION 2A ------------ - - - - --------- - - - - -- ` _ I / / RRMDA„B OUTFALL#2 ------------- - ---------------------fi0 OUT-694.'12'15"•RCP - - - - - - - - - - -_ _- - \ ` . \ ` \\ ` \ \ / / / / ' MHD DRAINAGE AREA TO BIORETENTION 2C --------------- ��1 '>70 ` \ \ \ \ \ r' / TOP=695.7T -- - - -- ` \ ` \ `--- --__ ,� / INV. IN=691.71'15"RCP O (VRRM DA"B"-OUTFALL#2) l - -_ _ - - - _ _ _ - - �_ - \ INV. OUT=691.62' 18" HOPE -_- - - - - -_ _ DRAINAGE AREA TO BIORETENTION 3A -- - - - - - - - - - �710 _ ' ' SO INLET (GRATE) SCALE 1"=20' O & GRASS CHANNEL - J09- - - _ - (MANAGED)PES TOP=700.09' (V ) r - - - INV /N=694.04' 15" RCP (VRRM DA "B" -OUTFACE # 2 / INV OUT=693.94' 15" RCP q 0 20' 40' / V AA 1) 0 VMDO Architects vmdo.com 434.296.5684 200 E Market Street 2000 Pennsylvania Ave I Ste 7000 Charlottesville, VA 22902 Washington, DC 20006 � 00090 s �0 0 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. bemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 VDOE Project Number 002-34-00-101 VMDO Project Number 1284 Checked By Designed By Drawn By Bryan D. Cichocld Z lie. No. 53741 \"0ll yS8lIt ��sSIONALGti B. CICHOCKI K. ROESER K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 STORMWATER SUMMARY PLAN C5.A ROCK \ARMOR ROCKARM�R \ \\ II \ / yLLJ _ Y, r I , I I I II I \ I I I I I \ \ I 1 cWi I I I \ \ I 1 1 I I \ I I W I I \ I I 1 I I I \ I 1 I III I I I� II II I I II I \ I 1 I I I x I \ II 11 r I I �fillillliillillill iiiiii \ \ I � 1 11 11 I I 11 I \\ BIORETENTION FACILITY 3A \s 690 DRAINAGE AREA cO m$ I 1 1 \ I I I \\ (VRRM DA C - LINE 4.a & 6.b) 310 0.61 0.27 I / r- \I I I I I I I \ I \ I h_ 10� \ \ I Ico I I I 04 co C'4 1 `" ' \ )'°(0 \ \ I �I 69p / F,�=9.50' / 13. 2' L ` I I 36" CMP ACCESS RISER P WITH VDOT MH-1 FRAME/ AND GRATE (Tl(P}�D I a. \ \ I I tI I / 0 I I \ \ I 18.53 S4EPSL P , I 1' � /WEIR PLATE I a / t SWM #2 . \ 10OLF OF 48" CMP 1 36.07 o I II 11 I II II 11 11 11 II II II II I II 0 I II II 11 11 11 11 I /I If BIORETENTION FACILITY 3A I 1 / I 308 ' / APPROX TREE I \ \ \ \ R=49.59""\ 1 \ \ \ \ DETENTION SYSTEM I 0.2% SLOPE TO OUTLET 1 I I \ GAME 316 \ I \ I 11 STEEP SLO S I 1 A. - I ` (CRITICAL S ES) = f ; : {' ::,; f ;; / I I I / 1 I I , \ . q \ \` - _ __t2 � ' 21� { 316 0.78 6 96, t se5 'sa 1 1 1 1 1 1 1 1 1 1 1 1 1 \ \ \ I I I I I I I I I I I I 1 I 1 1 EXISTING SOCCER FIELD IMP 56-64E COUNTY SCHOOL BOARD OF ALBEMARLE COUNTY, VIRGINIA DB. 1044, PG. 498 DB. 1098, PG. 703 ZONED: RA (RURAL AREAS) I 1 1 I 1 1 1 / 306 ' if I / iTO J BLOCKRATAIN/NG 1 : • I: I : I : { : 1; I I / WALL 1.0' � W I I 1Ul I I If Lk 1.. 1 \ \ I :1;7�'�' •� I \ \ `\ `\ 1 I III , I / \ STEEP SLOPES / (MANAGED) O I , 1:: • a / I I I I I I• \ \ \ 1 \ \1 \ 1 1 \ \ I I I I I \ \ \ \\ \ \\ \ 1 1 \I I I I 11 11 \ \ \ \ \\ \ \ \\ 1\ \ \\ \I I I 1 I \ \ \ 0-2 \ 15"DEC`\ LEGEND: STR# C AREA Q ` .SL PE56�8 \ \ \ \ ` \ \\ o DRAINAGE AREA TO SVVM #1 (VRRM DA "B" - OUTFALL # 2) DEC 1 / DRAINAGE AREA TO BIORETENTION 2A (MANAGED) (VRRM DA "B" -OUTFACE # 2 \` \ \ \ \ \\ \ \ ` \ \ I I \ \\ \ 1 ) / ` ` \ \ 1 I DRAINAGE AREA TO BIORETENTION 2C I I I N ) (VRRM DA "B" -OUTFACE # 2 DRAINAGE AREA TO BIORETENTION 3A - - - - - - 7----------- -- ---// / L I I I I \ ` \\ \ \ \ \\ \ \ 1 & GRASS CHANNEL L - - -` \ I 1 1 \ \ \ \ \ \ \ I (VRRM DA "B" - OUTFALL # 2) i-- \\ 1 - - - /I \� - - - -- 69 \♦ f0"DEC S� 1 - - - - - • - d ` ` I I \ \ \ ASPHALT. PATH0.5t \ \ I ' - D SAARY SEWER EASEMENT \ i 2 .` \ _ - _ 8Z \\ \ \ RWC AUTH4QR/TY \ \ \ \ S ` ORAL )DIARLE COUNTY \ \ \ \ 1 BIORETENTION FACILITY 2C 2 O\ - a 210.02 35 -*63 ` �� I o I \ D . 976, PG. 96 \ \ ` \ \ c"A \ \ 1 8 , ASTIC a i _ W \ I 1 \ \ \ \ \ \ 236 34.68' .END /' _ _ - - ' 210 0.40 �'� ♦ \ ► m \ I I \ \ ' / 9 F�= 50' UND / - - \ 84 ♦ CD l \ \ 0.05 _-��$'� `. \ \\ / I rn�0 \ \ \ \ \ \CP 10 R-9.50' L=22.69i rn ti \ \ \ \ m \ 1 /I/IIIII II II I s9i �• s' . \�024.74' \ \ \ \ `\ \\\ \\\ 1 \ / SCALE 1=20' a8 0.3822212 0.75`\��0s\V 0.00.03 O0 20' 40' OO MATCH N- SEESHEET\�5.4 r\ XDEL ' 224 U.59 IN. .,.l J I •/6._iih- l �'y-?' �' _ rbpI INVlN= 83$6.15':RGP(N) 216 0 040 _692 INV6 3.40' 12'HDRE:(W.7 V�% r11 \ `\\ \66N; 684.1/. 8 INO8$.0! 157 a // 1 \ 94E\`, 220 0.44`a - V \\ \ `\ / I 693 f - / 221 0.90 223 0.90 \ \ \ \ `\ I� ° \\ `\ \ INv sT 84 I 92 232 / ° - \ ' 0.32 0.29 \ ` \ \ , \ \ \ 12"DkC 0 238 0.88 I BIORETENTION FACILITY OD `\ `\ \ `\ \ \ \ \ `\ \ \ I I I I / 0.29 2C DRAINAGE AREA \ I I I IIqII II II I (VRRMDAB -LINE 6.b) 223 0.35 69 aT693 fi„q 0.11 \ \ \ \ I I Io II I I I I I\ I 'I / 4a / \ TOPs&.'e®Fy \ \\\\ �. ., _ \t¢oT-sss.as' ; \ . M ` \ ` . `. \ \ ` \ ` ` I I c^o ,CD V AA I VMDO Architects vmdo.com 434.296.5684 200 E Market Street 2000 Pennsylvania Ave NW Ste 7000 Charlottesville, VA 22902 Washington, DC 20006 � 00090 s �0 0 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. • bemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 VDOE Project Number 002-34-00-101 VMDO Project Number 1284 Bryan D. Cichocld Z lie. No. 53741 001 \Y' yS87� IONALG Checked By B. CICHOCKI Designed By K. ROESER Drawn By K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 STORMWATER SUMMARY PLAN C5,l I I ' I ' I ' I I / I I - I I IIII II IIIII14I \ , / / ji ,Ill if ro SHEET FLOW it V 1 I I EX4.ION (ONSITE) \ I 11 II I SHEET FLOW I I AREA = a84 AC l ( IMPERVIOUS = 0.24 AC 11 111 1 I / 1 III , FOREST=0.01AC �I' MANAGED TURF = 0.59 AC rj I IIIII 1' Il \s90 IIIII SWM BOUNDARY 1 I / \ II III\ - I\ I I I I I IIIII \\ \ \ 1 I \ I III I SHEET\LOW ; 'it I I I \ Y11 IIIII v 4 EX3. ION (ONSITE) \ 11111 AREA = 1.27AC I I I l \ �\ \ \ II IMPERVIOUS = a61 AC IIII \ 1j1 MANAGED TURF = 0.66 AC I I I \ SITE OUTFALL 3 , , \ TOTAL AREA=1.69 AC \ 1 j 101M 1 .� I /_ �� \ \ Illl 1 � IIwe �' I EX3. IOFF (OFFSITE) \ I j r f \ �- _ , AREA =0.42AC IMPERVIOUS (GRAVEL) = 0.05 AC j \\ 1 I 1 FOREST= 0.21 AC \ MANAGED TURF = 0.16 AC SHEET FLOW s \ \ I / ,IIIIII q �_ __-- - _ -_ I v v V v v v111 &44 f \ \ \ \�k 1`7 - SWM BOUNDARY rrrr>• I V A V V A A A I v� vV A A ' III V 'fir �.� -\\"\\ \ 1 I EX2.5OFF (OFFSITE) I _ \_ \ \ ` \ AREA = 1.24 AC / EXZ ION ONSITE ,\�\ \ IMPERVIOUS = 0.90AC I \, I/_ TO SITE OUTFALL 2 MANAGED TURF = 0.34 AC / AREA = 3.01 AC p ' IMPERVIOUS = a 96 AC I I �� I \ o \ \ \ \ SITE OUTFALL 2 i ^O MANAGED TURF=2.05AC TOTAL AREA=12.95AC EX2.30FF(OFFSITE) L r. r r r, IIII MILL & OVERLAY I I - AREA = 0.55 AC I - w- - - _ 03 ~ ' __6 \ r IMPERVIOUS=a50AC rr i \\� \ ` _ ' 1 02 �6 9p\ MANAGED TURF= 0.05AC �v 1 EX220FF (OFFSITE) AREA 3.42AC IMPERVIOUS =0.22AC IMPERVIOUS (GRAVEL) = a 11 AC I MANAGED TURF = 229 AC PERVIOUS (FOREST) = 0.80 AC III _ _ ( SWM BOUNDARY EX2.40FF (OFFSITE) fl MILL & OVERLAY "�- �// - a 1 1- AREA = a 07 AC / l � I \ \ � � ` ` \� IMPERVIOUS = 0.07 AC / III \ \ \ \ \ \\\ \\ cs / 4f MANAGED TURF=O.00AC-s9s--700 = ' > / / If -�- ----- �► O ' - - / SWM BOUNDARY \ - EXZ 10FF (OFFSITE) T / U F AREA = a 13 AC ON Iowa \ IMPERVIOUS = aOAC �f rn I' t A�\ MANAGED TURF = 0.13 AC \ ' %� _ - - o \ m \ '� =�_� � - \ o � \ I / 1 / � SITE OUTFALL 1 -70� TOTAL AREA=1.09AC / - _ - - r _ -- =7_ . - - W/ 1 EX1. ION ONSITE / - - - - o ff10-- r= -_ ( ) s-I f _ J1_0= _ - -\\1\ TO SITE OUTFALL 1 70s - - _ _ - • ' AREA = 0.29 AC r 0= - _-- _ _ "os / ' r q IMPERVIOUS = O.00 AC PERVIOUS (MANAGED TURF) = 0.29AC / 'Vpa EX2.00FF (OFFSITE) 41J` EXI.10FF (OFFSITE) / AREA = 4.53 AC 4t TO SITE OUTFALL I / IMPERVIOUS = a61 AC AREA = a80AC MANAGED TURF =3.92 AC IMPERVIOUS = 0.40 AC J^ I / PERVIOUS (MANAGED TURF) = a40AC 88 OVN 411 I � - I ' I ' I ' I � I I I I I I I / I I 1 I - � �' I IIIIIIIIIIIIrI, IIII ` 1 / / / \ vC) if %0II GRASS CHANNEL TO SHEETFLOW 1 1 I I BIORETENTION#3A II I 1 1 IIIIII!/ 1 IIN'I I\,II 1 I I 1 IIIII , `® �E / I \\ \\I II / I1 - - - - SWM BOUNDARY Jill G9 _ \ - PR4. ION (ONSITE) I I SHEET FLOW \ \ I AREA = 0.49 AC IIII i�i I / IMPERVIOUS = 0.09 AC I \ \ \ \ I MANAGED TURF = 0.40 AC ` h BIORETENTION FACILITY #3A v - PR3. ION (ONSITE) LEVEL 2 \ AREA = 1.35AC III \ - Lot IMPERVIOUS = 0.72 AC / It If \ SITE OUTFALL 3 U 1 SWM #2 100 LF OF m MANAGED TURF = I.63 AC 1 TOTAL AREA=1.42 AC 1j 1 1 48" CMP DETENTION ( p - EX3. IOFF (OFFSITE) AREA =0.42AC IMPERVIOUS (GRAVEL) = 0.05 AC l i _ _ / SHEET FLOW FOREST= 0.21 AC t ` \ A - - - MANAGED TURF = 0. 16AC BIORETENTION FACILITY #2C LEVEL 2 aI _60 �/ A A \ ` v` \ 0� SWM BOUNDARY \ �\\ �s� \ \\ I\\\\� 1 /.., fill / I / PR2.1ON (OlV ITEJ v ; ca A I AREA = 3.4 = _ IMPERVIOUS = 1.95 AC 0 \ ` ` \ \ 0\\ \ PR2.5OFF (OFFSITE) 6,95 O ._. ' - MANAGED TURF = 1.50 AC AREA =1.12 AC ✓�%Ar IMPERVIOUS =. 78 AC II \- u _ 0.72 AC TO SWM 1 I \ MANAGED TURF = 0.34 AC OUTSIDE SWM ` v SITE OUTFALL 2 I rn v v TOTAL AREA=13.77ACN. v u I OVER TO DA C v -�X v v LIMITS CARRIED i � EX2.30FF(OFFSITE) \� \ \ \ \ \ MILL & OVERLAY AREA = 0.55 AC IMPERVIOUS = 0.50 AC I. ® ' V v MANAGED TURF= 0.05AC I - - - FF IMPXEROOLI(OFFSITE) 0.22AC I/Ii'/ �_- ( ) Y / 94 \ \ SWM #1 STORMTECH F = - - _ _ __ - \ \ DETENTION SYSTEM L IMPERVIOUS (GRAVEL) = 0.11 AC I I + I �p o, WITH ISOLATOR ROW MANAGED TURF= 2.29AC = SWM DA=2.76 ACRES PERVIOUS (FOREST) = 0.80AC ^ I o \ \' g7AC BOUNDARY Y v w `vv `� v v 1 �1vv J \\ \ EX2.40FF (OFFSITE) (gip - 1 \ \ ( 1 MILL & OVERLAY 700 AREA = a 10 AC IMPERVIOUS = 0.10 AC I MANAGED TURF = 0.00 AC - v I b SWM BOUNDARY - / T UFO all ff o V PRZ 10FF (OFFSITE) =^ �i � 0 - AREA = 0.15AC 7 IMPERVIOUS = O.OAC . I _ - - !0`?0` \ MANAGED TURF = 0.15 AC S ` / O ' ' SITE OUTFALL I �05 - / l - 9h \ rO ' TOTAL AREA=0.89AC so X0 BIORETENTIs - o f f f _ _ _� - - - _- - >> `\\ / / 2 AC FACILITY 2A LEVEL 2 / - =710 = - O PR1. ION (ONSITE) os f ) 709 VV - b0 =- _ \\\\ IMPERVOUS' 0.03AC �S \n 5 PERVIOUS (MANAGED TURF) = 0.09 AC / EXZOOFF (OFFSITE) PR1.10FF (OFFSITE) / AREA = 4.53 AC AREA = 0.77 AC IMPERVIOUS = 0.61 AC J* IMPERVIOUS = 0.38 AC / MANAGED TURF =3.92 AC � PERVIOUS (MANAGED TURF) = 0.39 AC £8 OVN IIII V AA D C) VMDO Architects vmdo.com 434.296.5684 200 E Market Street 2000 Pennsylvania Ave NW Ste 7000 Charlottesville, VA 22902 Washington, DC 20006 �0••90 s �0 0 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. • rbemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 VDOE Project Number 002-34-00-101 VMDO Project Number 1284 Checked By Designed By Drawn By Bryan D. Cichocld Z lie. No. 53741 \ yS8I��sSIONALG1 B. CICHOCKI K. ROESER K. ROESER ISSUES AND REVISIONS N0. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 STORMWATER MANAGEMENT PLAN PRE -DEVELOPMENT CONDITION SCALE 1"=60' 0 60' 120' POST -DEVELOPMENT CONDITION SCALE 1 "=60' 0 60, 120' C6n0 DRAINAGE AREA ANALYSIS (POST -DEVELOPMENT) DRAINAGE AREA ANALYSIS (POST -DEVELOPMENT) WATER QUANTITY SITE OUTFALL 1 DRAINAGE AREA ANALYSIS (PRE -DEVELOPMENT) EX1.10N (ONSITE) AREA = 0.29 ACRES 0.00 ACRES (IMPERVIOUS) 0.29 ACRES (MANAGED TURF) 0.00 ACRES (WOODS) Tc= 5 MIN Q (CFS) V (AC -FT) 1 YEAR 0.151 0.009 2 YEAR 0.30 10 YEAR 0.85 EX1.1OFF (OFFSITE) AREA = 0.80 ACRES 0.40 ACRES (IMPERVIOUS) 0.40 ACRES (MANAGED TURF) 0.00 ACRES (WOODS) Tc= 5 MIN Q (CFS) 1 YEAR 1.77 2 YEAR 2.43 10 YEAR 4.53 COMBINED FLOW AT SITE OUTFALL 1 Q (CFS) 1 YEAR 1.92 2 YEAR 2.73 10 YEAR 5.38 CHANNEL PROTECTION (ENERGY BALANCE DRAINAGE AREA ANALYSIS (POST-DEVELOPMEN EX1.1ON (ONSITE) AREA = 0.12 ACRES 0.03 ACRES (IMPERVIOUS) 0.09 ACRES (MANAGED TURF) 0.00 ACRES (WOODS) Tc= 5 MIN Q (CFS) V (AC -FT) 1 YEAR 0.150 0.007 2 YEAR 0.23 10 YEAR 0.50 EX1.1OFF (OFFSITE) AREA = 0.77 ACRES 0.38 ACRES (IMPERVIOUS) 0.39 ACRES (MANAGED TURF) 0.00 ACRES (WOODS) Tc= 5 MIN Q (CFS) 1 YEAR 1.63 2 YEAR 2.25 10 YEAR 4.25 COMBINED FLOW AT SITE OUTFALL 1 Q (CFS) 1 YEAR 1.78 2 YEAR 2.48 10 YEAR 4.75 QDEVELOPED < 0-90*(QPRE-DEVELOPED*RVPRE-DEVELOPED)/RVDEVELOPED OK 1.78 CFS:5 0.90"(0.151 CFS`0.009 AC-FT)/(0.007 AC-FT)+1.77= 1.94 CFS FLOOD PROTECTION: POST -DEVELOPED Q10 <_ PRE -DEVELOPED Q10 OK 4.75 CFS (POST -DEVELOPED Q10) <_ 5.38 CFS (PRE -DEVELOPED Q10) WATER OUANTITY SITE OUTFALL 4 SHEET FLOW DRAINAGE AREA ANALYSIS (PRE -DEVELOPMENT) DRAINAGE AREA ANALYSIS (POST -DEVELOPMENT) EX4.10N (ONSITE) PR4.10N (ONSITE) AREA = 0.84 ACRES AREA = 0.49 ACRES 0.24 ACRES (IMPERVIOUS) 0.09 ACRES (IMPERVIOUS) 0.59 ACRES (MANAGED TURF) 0.40 ACRES (MANAGED TURF) 0.01 ACRES (WOODS) 0.00 ACRES (WOODS) Tc = 5 MIN Tc = 5 MIN Q (CFS) V (AC -FT) Q (CFS) V (AC -FT) 1 YEAR 1.20 0.056 1 YEAR 0.53 0.025 2 YEAR 1.80 2 YEAR 0.85 10 YEAR 3.76 10 YEAR 1.92 CHANNEL PROTECTION (ENERGY BALANCE QDEVELOPED < 0.90*(QPRE-DEVELOPED*RVPRE-DEVELOPED)/RVDEVELOPED OK 0.53 CFS:5 0.90"(1.20 CFS'0.056 AC-FT)/(0.025 AC -FT)= 2.42 CFS FLOOD PROTECTION: POST -DEVELOPED QtD <_ PRE -DEVELOPED Clio OK 1.92 CFS (POST -DEVELOPED Q10) <_ 3.76 CFS (PRE -DEVELOPED Q10) OUTFALL # 1 - VRRM DRAINAGE AREA A Drainage Area A Forest/Open Space -- undisturbed, protected Area (ai forest/open space or reforested land CN Managed Turf -- disturbed, graded for yards or other Area (ai turf to be mowed/managed CN Impervious Cover Area (ai CN 1 RVDeveloped (watershed -inch) with no Runoff Reduction* RVDeveloped (Watershed -inch) with Runoff Reduction* Adjusted CN* WATER QUANTITY SITE OUTFALL 2 DRAINAGE AREA ANALYSIS (PRE -DEVELOPMENT) EX2.1ON (ONSITE) AREA = 3.01 ACRES 0.96 ACRES (IMPERVIOUS) 2.05 ACRES (MANAGED TURF) 0.00 ACRES (WOODS) Te = 5 MIN Q (CFS) V (AC -FT) 1 YEAR 4.58 0.212 2 YEAR 6.78 10 YEAR 13.92 EX2.00FF (OFFSITE) AREA = 4.53 ACRES 0.61 ACRES (IMPERVIOUS) 3.92 ACRES (MANAGED TURF) Te= 15 MIN Q (CFS) 1 YEAR 2.72 2 YEAR 4.76 10 YEAR 11.92 EX2.1 OFF (OFFSITE) AREA = 0.13 ACRES 0.13 ACRES (MANAGED TURF) Tc = 5 MIN Q (CFS) 1 YEAR 0.07 2 YEAR 0.14 10 YEAR 0.38 EX2.2OFF (OFFSITE) AREA = 3.42 ACRES 0.33 ACRES (IMPERVIOUS) 2.29 ACRES (MANAGED TURF) 0.80 ACRES (FOREST) Te= 15 MIN Q (CFS) 1 YEAR 1.44 2 YEAR 2.82 10 YEAR 7.85 EX2.3OFF (OFFSITE) AREA = 0.55 ACRES 0.50 ACRES (IMPERVIOUS) 0.05 ACRES (MANAGED TURF) Te = 5 MIN Q (CFS) 1 YEAR 2.15 2 YEAR 2.65 10 YEAR 4.09 EX2.4OFF (OFFSITE) AREA = 0.07 ACRES 0.07 ACRES (IMPERVIOUS) 0.00 ACRES (MANAGED TURF) Te = 5 MIN Q (CFS) 1 YEAR 0.29 2 YEAR 0.35 10 YEAR 0.53 EX2.5OFF (OFFSITE) AREA = 1.24 ACRES 0.90 ACRES (IMPERVIOUS) 0.34 ACRES (MANAGED TURF) Tc = 5 MIN Q (CFS) 1 YEAR 3.88 2 YEAR 5.02 10 YEAR 8.37 COMBINED FLOW AT SITE OUTFALL 2 Q (CFS) 1 YEAR 15.13 2 YEAR 22.52 10 YEAR 47.06 PR2.10N(ONSITE) TOTAL FOR ENERGY BALANCE COMP (TO SITE OUTFALL 2 VIA SWM 1 & BIORETENTION 2A&2B) AREA = 3.45 ACRES CN = 79 (ADJUSTED FROM VRRM SEE DA.B) Te = 5 MIN Q (CFS) V (AC -FT) 1 YEAR 7.27 0.334 2 YEAR 10.08 10 YEAR 19.05 EX2.00FF (OFFSITE) AREA = 4.53 ACRES 0.61 ACRES (IMPERVIOUS) 3.92 ACRES (MANAGED TURF) Tc= 15 MIN Q (CFS) 1 YEAR 2.72 2 YEAR 4.76 10 YEAR 11.92 EX2.1OFF (OFFSITE) CAPTURED IN SWM 1 EX2.2OFF (OFFSITE) AREA = 3.42 ACRES 0.33 ACRES (IMPERVIOUS) 2.29 ACRES (MANAGED TURF) 0.80 ACRES (FOREST) Tc= 15 MIN Q (CFS) 1 YEAR 1.44 2 YEAR 2.82 10 YEAR 7.85 EX2.3OFF (OFFSITE) CAPTURED IN SWM 1 EX2.4OFF (OFFSITE) CAPTURED IN SWM 1 PR2.50FF (OFFSITE) REDUCED FOR PARTIAL CAPTURE IN SWM 1 AREA = 1.12 ACRES 0.78 ACRES (IMPERVIOUS) 0.34 ACRES (MANAGED TURF) Te = 5 MIN Q (CFS) 1 YEAR 3.37 2 YEAR 4.40 10 YEAR 7.42 CHANNEL PROTECTION (ENERGY BALANCE): QDEVELOPED < 0-60*(QPRE-DEVELOPED*RVPRE-DEVELOPED)/RVDEVELOPED + QOFFSITE OK 12.40 CFS:5 [0.80"(4.58 CFS'0.212 AC-FT)/(0.334 AC -FT)] + 10.55 CFS (ALL OFFSITE AREA) <_ 12.87 CFS FLOOD PROTECTION: POST -DEVELOPED Qlo:5 PRE -DEVELOPED Clio OK 45.51 CFS (POST -DEVELOPED Qto) :5 47.06 CFS (PRE -DEVELOPED Q10) A Soils B Soils C Soils D Soils 0.00 30 0.00 55 0.00 70 0.00 77 0.00 39 0.09 61 0.00 74 0.00 80 0.00 98 0.03 1 98 0.00 1 98 0.00 1 98 !ar storm 2-year storm 10-year storm CN D.A. A 70 0.75 1.14 2.48 0.75 1.14 2.48 70 70 70 OUTFALL # 2 - VRRM DRAINAGE AREA B Drainage Area B Forest/Open Space -- undisturbed, protected Area (acres forest/open space or reforested land CN Managed Turf -- disturbed, graded for yards or other Area (acres turf to be mowed/managed CN Impervious Cover Area (acres CN A Soils 0.00 30 0.00 39 9PA 1-year storm RVDeveloped (Watershed -inch) with no Runoff Reduction* 1.43 RVDeveloped (Watershed -inch) with Runoff Reduction* 1.z5 Adjusted CN* 79 B Soils C Soils D Soils 0.00 55 0.00 70 0.00 77 1.50 61 0.00 74 0.00 80 1.95 98 0.00 98 0.00 98 ar storm 10-year storm CN (D.A. s) 82 1.96 3.60 1.78 3.42 80 80 Total Area (acres): 0.12 Runoff Reduction Volume (ft31: 0 Total Area (acres): Runoff Reduction 3.45 t.264 PR2.10N(ONSITE) UNDETAINED AREA = 0.69 ACRES 0.19 ACRES (IMPERVIOUS) 0.50 ACRES (MANAGED TURF) Tc=5MIN Q (CFS) 1 YEAR 0.92 2 YEAR 1.41 10 YEAR 2.99 SWM 1 INFLOW (STORMTECH) AREA = 2.76 ACRES 2.15 ACRES (IMPERVIOUS) 0.61 ACRES (MANAGED TURF) CN=90 Tc= 5 MIN Q (CFS) 1 YEAR 9.30 2 YEAR 11.85 10 YEAR 19.26 SWM 1 OUTFLOW (STORMTECH AREA CAPTURED = 2.76 ACRES 2.15 ACRES (IMPERVIOUS) 0.61 ACRES (MANAGED TURF) Q (CFS) 1 YEAR 3.65 TOTAL 1 YEAR 1.06 TO BIO 2A 1 YEAR 2.59 TO OUTFALL 2 YEAR 5.20 10 YEAR 12.67 B102C INFLOW AREA = 0.50 ACRES 0.33 ACRES (IMPERVIOUS) 0.17 ACRES (MANAGED TURF) Tc= 5 MIN Q (CFS) 1 YEAR 2.80 2 YEAR 3.96 10 YEAR 7.68 B102C OUTFLOW Q (CFS) 1 YEAR 0.60 2 YEAR 0.75 10 YEAR 1.73 B102A INFLOW AREA = 0.59 ACRES 0.33 ACRES (IMPERVIOUS FROM STORMTECH) 0.26 ACRES (MANAGED TURF SHEET FLOW) Tc= 5 MIN Q (CFS) 1 YEAR 0.14 (SHEET FLOW) Q (CFS) 1 YEAR 1.06 (FROM STORMTECH) B102A OUTFLOW Q (CFS) 1 YEAR 0.76 2 YEAR 0.84 10 YEAR 0.93 COMBINED FLOW AT SITE OUTFALL 2 Q (CFS) 1 YEAR 12.40 2 YEAR 20.18 10 YEAR 45.51 TOP OF 3' 5" WEIR ELEV=690.08' 7" Weir - - - ELEV.=687.50' �, TOP OF CONTROL STRUCTURE ELEV. = 696.10' _ 10 YEAR_WSE_ 690.01' 2 YEARWSE - -688.19' 0 1 YEAR WSE --------- WEIR WALL IN 687.46 CONTROL STRUCTURE- 0 Q ELEV. 8" ORIFICE IN WEIR WALL J L 6" ORIFICE IN STRUCTURE SIDE WITH DEBRIS CAGE TO BIO 2A INV 684.75' WITH DEBRIS CAGE INV 684.75' CONTROL STRUCTURE DETAIL DEBRIS CAGE FOR SWM1 STORMTECH DETAIL PROVIDED ON SHEET C6.2' OUTFALL # 3 - VRRM DRAINAGE AREA C Drainage Area C Forest/Open Space -- undisturbed, protected Area (al forest/open space or reforested land CN Managed Turf -- disturbed, graded for yards or other Area (al turf to be mowed/managed CN Impervious Cover Area (aI CN RVDeveloped (watershed -inch) with no Runoff Reduction* RVDeveloped (watershed -inch) with Runoff Reduction* Adjusted CN* WATER QUANTITY SITE OUTFALL 3 DRAINAGE AREA ANALYSIS (PRE -DEVELOPMENT) EX3.10N (ONSITE) AREA = 1.27 ACRES 0.61 ACRES (IMPERVIOUS) 0.66 ACRES (MANAGED TURF) 0.00 ACRES (WOODS) Tc=5MIN Q (CFS) V (AC -FT) 1 YEAR 2.68 0.123 2 YEAR 3.71 10 YEAR 7.01 EX3.1OFF (OFFSITE) AREA = 0.42 ACRES 0.05 ACRES (IMPERVIOUS) 0.16 ACRES (MANAGED TURF) 0.21 ACRES (WOODS) 0.05 ACRES (GRAVEL) Tc= 5 MIN Q (CFS) 1 YEAR 0.25 2 YEAR 0.48 10 YEAR 1.29 COMBINED FLOW AT SITE OUTFALL 3 Q (CFS) 1 YEAR 2.93 2 YEAR 4.19 10 YEAR 8.30 CHANNEL PROTECTION (ENERGY BALANCE QDEVELOPED < 0.80*(QPRE-DEVELOPED*RVPRE-DEVELOPED)/RVDEVELOPED + QOFFSITE OK 2.25 CFS:5 0.80"(2.68 CFS'0.123 AC-FT)/(.131 AC -FT) + 0.25 CFS (EX3.1OFF) = 2.26 CFS FLOOD PROTECTION: POST -DEVELOPED Qto <_ PRE -DEVELOPED Q10 OK 8.25 CFS (POST -DEVELOPED Qto) :5 8.30 CFS (PRE -DEVELOPED Qto) A Soils B Soils C Soils D Soils 0.00 30 0.00 55 0.00 70 0.00 77 0.00 39 0.63 61 0.00 74 0.00 80 0.00 98 0.72 98 0.00 98 0.00 98 !ar storm 2-year storm 10-year storm CN D.A. c 81 1.37 1.88 3.50 1.27 1.78 3.40 79 80 80 OUTFALL # 4 SHEET FLOW - VRRM DRAINAGE AREA D Drainage Area D Forest/Open Space -- undisturbed, protected Area (ai forest/open space or reforested land CN Managed Turf -- disturbed, graded for yards or other Area (ai turf to be mowed/managed CN Area (ai Impervious Cover CN RVDeveloped (Watershed -inch) with no Runoff Reduction* RVDeveloped (watershed -inch) with Runoff Reduction* Adjusted CN* A Soils B Soils C Soils D Soils 0.00 0.00 0.00 0.00 30 55 70 77 0.00 0.40 0.00 0.00 39 61 74 80 0.00 0.09 0.00 0.00 98 1 98 1 98 1 98 CN(D.A. D) 68 !ar storm 2-year storm 10-year storm 0.66 1.03 2.30 0.66 1.03 2.30 68 68 68 TOP OF WEIR PLATE 683.50' 4"xl1.5" ORIFICE INV 681.55' WITH DEBRIS CAGE STEEL PLATE TOP OF 48" STORAGE PIPE ELEV. = 684.00' _ 10_YEAR _W_SE_ 683.40' 2 YEAR WSE ----------- -1YEARWSE -681.54' DEBRIS CAGE DETAIL 7" ORIFICE WITH DEBRIS CAGE PROVIDED ON SHEET C6.2' NV 680.00' UNDERGROUND CMP WEIR PLATE SECTION DETAIL - SWM2 Total Area (acres): 1.35 Runoff Reduction Volume (ft31: 485 Total Area (acres): 0.49 Runoff Reduction DRAINAGE AREA ANALYSIS (POST-DEVELOPMEN PR3.10N (ONSITE) TOTAL FOR ENERGY BALANCE COMP (Adjusted CN=79) AREA = 1.35 ACRES 0.72 ACRES (IMPERVIOUS) 0.63 ACRES (MANAGED TURF) \Tc= 5 MIN Q (CFS) V (AC -FT) 1 YEAR 2.84 0.131 2 YEAR 3.94 10 YEAR 7.45 SWM-2 INFLOW (100 LF 48" CMP) (INCLUDES EX3.10FF) AREA = 0.91 ACRES 0.49 ACRES (IMPERVIOUS) 0.21 ACRES (MANAGED TURF) 0.21 ACRES (FOREST) Tc= 5 MIN Q (CFS) 1 YEAR 2.01 2 YEAR 2.77 10 YEAR 5.16 SWM-2 OUTFLOW 000 LF 48" CMP) Q (CFS) 1 YEAR 1.44 2 YEAR 2.39 10 YEAR 4.26 BIO 3A INFLOW AREA = 0.27 ACRES 0.14 ACRES (IMPERVIOUS) 0.13 ACRES (MANAGED TURF) Tc= 5 MIN Q (CFS) 1 YEAR 0.60 2 YEAR 0.82 10 YEAR 1.53 BID 3 A OUTFLOW Q (CFS) 1 YEAR 0.07 2 YEAR 0.62 10 YEAR 1.52 OUTFALL 3 UNDETAINED AREA = 0.59 ACRES 0.14 ACRES (IMPERVIOUS) 0.45 ACRES (MANAGED TURF) Tc= 5 MIN Q (CFS) 1 YEAR 0.74 2 YEAR 1.14 10 YEAR 2.47 COMBINED FLOW AT SITE OUTFALL 3 Q (CFS) 1 YEAR 2.25 2 YEAR 4.15 10 YEAR 8.25 V AA I� C) VMDO Architects vmdo.com 434.296.5684 200 E Market Street 2000 Pennsylvania Ave NW Ste 7000 Charlottesville, VA 22902 Washington, DC 20006 s 0 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. rbemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 VDOE Project Number 002-34-00-101 VMDO Project Number 1284 Checked By Designed By Drawn By Bryan D. Cichocld Z lie. No. 53741 O.y, 1Y' yS87� �`rSIOX B. CICHOCKI K. ROESER K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 STORMWATER MANAGEMENT QUANTITY C6n 1 DEQ Virginia Runoff Reduction Method Re -Development Compliance Spreadsheet - Version 3.0 2011 BMP Standards and Specifications G 2013 Draft BMP Standards and Specifications VA DCR SPECIFICATION NO. 9 SOIL MEDIA SPECIFICATIONS VA DCR STORMWATER DESIGN SPECIFICATION NO. 9 BIORETENTION 1 Project Name: Crozet Elementary School Date: 11/22/2020 Linear Development Project? Site Information C1� Post -Development Project (Treatment Volume and Loads) Enter Total Disturbed Area (acres) 5.41 Pre -Re Development Land Cover (acres) A Soils B Soils C Soils D Soils Totals Forest/Open Space (acres) -- undisturbed forest/open sace 0.01 0.01 Managed Turf (acres) -- disturbed, graded for yardsorother turf tobe 3.59 3.59 Impervious Cover (acres) 1.81 1.81 5.41 (Post -Development Land Cover (acres) A Soils B Soils C Soils D Soils Totals Forest/Open Space (acres) -- undisturbed, 0.00 protected forest/open sace or reforested Managed Turf (acres) -- disturbed, graded for yardsorother turf tobe 2.62 2.62 Impervious Cover (acres) 2.79 2.79 Area Check OK. OK. OK. OK. 5.41 (Constants Annual Rainfall (inches) 43 Target Rainfall Event (inches) 1.00 Total Phosphorus (TP) EMC (mg/L) 0.26 Total Nitrogen (TN) EMC (mg/L) 1.86 Target TP Load (Ib/acre/yr) 0.41 Pj (unitless correction factor) 0.90 Runoff Coefficients (Rvl Check: BMP Design Specifications List: 2013 Draft Stds & Specs Linear project? No Land cover areas entered correctly? Total disturbed area entered? A Soils B Soils C Soils D Soils Forest/Open Space 0.02 0.03 0.04 0.05 Managed Turf 0.15 0.20 0.22 0.25 Impervious Cover 0.95 0.95 0.95 0.95 Land Cover Summary -Pre Pre -Re Development Listed ' Adjusted' Forest/Open Space Cover (acres) 0.01 0.00 Weighted Rv(forest) 0.03 0.00 % Forest 0% 0% Managed Turf Cover (acres) 3.59 2.62 Weighted Rv(turf) 0.20 0.20 % Managed Turf 66% 59% Impervious Cover (acres) 1.81 1.81 Rv(impervious) 0.95 0.95 %Impervious 33% 41% Total Site Area (acres) 5.41 4.43 Site Rv 0.45 0.51 Treatment Volume and Nutrient Load Pre-ReDevelopment Treatment Volume (acre-ft) 0.2032 0.1870 Pre-ReDevelopment Treatment Volume (cubic feet) 8,849 8,144 Pre-ReDevelopment TP Load (Ib/yr) 5.56 5.12 Pre -Re Development TP Load per acre (I b/acre/yr) 1.03 1.16 Baseline TP Load (lb/yr) (0.411bs/acre/yrapplied to pre -redevelopment area excl uding pervious land proposed for new impervious cover) 1.82 'Adjusted Land Cover Summary: Pre ReDevelopment land cover minus pervious land cover (forest/open space or managed turf) acreage proposed for new impervious cover. Adjusted total acreage is consistent with Post-ReDevelopment acreage (minus acreage of new impervious cover). Column 1 shows load reduction requriement for new impervious cover (based on new development load limit, 0.41 Ibs/acre/year). Land Cover Summary -Post (Final) Post ReDev. & New Impervious Forest/Open Space 0.00 Cover (acres) Weighted Rv(forest) 0.00 % Forest 0% Managed Turf Cover 2.62 (acres) Weighted Rv (turf) 0.20 % Managed Turf 48% Impervious Cover (acres) 2.79 Rv(impervious) 0.95 %Impervious 52% Final Site Area (acres) 5.41 Final Post Dev Site Rv 0.59 Final Post - Development Treatment Volume 0.2645 (acre-ft) Final Post - Development 11,523 Treatment Volume (cubic feet) Final Post - Development TP 7.24 Load (lb/yr) Final Post -Development TP Load per acre 1.34 (lb/acre/yr) TP Load Reduction Required (lb/yr) Land Cover Summary -Post Post-ReDevelopment Forest/Open Space 0.00 Cover (acres) Weighted Rv(forest) 0100 %Forest 0% Managed Turf Cover 2.62 (acres) Weighted Rv (turf) 0.20 %Managed Turf 59% ReDev. Impervious Cover (acres) 1.81 Rv(impervious) 0.95 %Impervious 41% Total ReDev. Site Area 4.43 (acres) Re Dev Site Rv 0.51 Treatment Volume and Nutrient Load 2.74 Nitrogen Loads (Informational Purposes Only) Pre -Re Development TN Load 39.77 (l b/yr) Post-ReDevelopment Treatment Volume 0.1870 (acre-ft) Post-ReDevelopment Treatment Volume 8,144 (cubic feet) Post- ReDevelopment Load(TP) 5.12 (lb/yr)* Post-ReDevelopment TP Load per acre 1.16 (Ib/acre/yr) lax. Reduction Required (Below Pre- 20% ReDevelopment Load) TP Load Reduction Required for Redeveloped Area (lb/yr) 1.02 Final Post -Development TN Load (Post-ReDevelopment & New 51.79 Impervious) (lb/yr) Land Cover Summary -Post Post -Development New Impervious New Impervious Cover 0.98 (acres) Rv(impervious) 0.95 Post -Development Treatment Volume (acre-ft) Post -Development Treatment Volume (cubic feet) Post -Development TP Load (lb/yr) TP Load Reduction Required for New Impervious Area (lb/yr) 1.72 Table 9.7. Bioretention Material Soecifications Material Specification Notes Filter Media to contain: The volume of filter media based on 110% Filter Media • 80% - 90% sand of the plan volume, to account for settling Composition • 10%-20% soil fines or compaction. • 3%-5% organic matter Available P between L+ and M per Filter Media DCR 2005 Nutrient Management The media should be certified by the Testing Criteria. supplier. Mulch Layer Use aged, shredded hardwood bark Lay a 2 to 3 inch layer on the surface of the mulch or stable coarse compost. filter bed. Alterative Use river stone or pea gravel, coir and Lay a 2 to 3 inch layer of to suppress weed Surface Cover jute matting, or turf cover. growth. Loamy sand or sandy loam texture, Top Soil with less than 5% clay content, pH 3 inch surface depth. For Turf Cover corrected to between 6 and 7, and an organic matter content of at least 2%. Use a non -woven geotextile fabric with Apply only to the sides and directly above Geotextile/Liner a flow rate of > 110 gal./min./sq. ft. the underdrain. For hotspots and certain (e.g., Geotex 351 or equivalent) sites only, use an appropriate liner on boom. bottot Choking Layer Lay a 2 to 4 inch layer of sand over a 2 inch layer of choker stone (typically #8 or #89 washed gravel), which is laid over the underdrain stone. Stone Jacket for Underdrain 1 inch stone should be double -washed 12 inches for the underdrain; and/or Storage and clean and free of all fines (e.g., 12 to 18 inches for the stone storage layer, Layer VDOT #57 stone). if needed Use 6 inch rigid schedule 40 PVC pipe Lay the perforated pipe under the length of Underdrains, (or equivalent corrugated HDPE for the bioretention cell, and install non- Clea routs, and micro-bioretention), with 3/8-inch perforated pipe as needed to connect with Observation perforations at 6 inches on center; the storm drain system. Install T's and Y's Wells position each underdrain on a 1% or as needed, depending on the underdrain 2% slope located nor more than 20 feet configuration. Extend cleanout pipes to the from the next pipe. surface with vented caps at the Ts and Ys. Plant one tree per 250 square feet (15 Establish plant materials as specified in the feet on -center, minimum 1 inch landscaping plan and the recommended caliper). plant list. Shrubs a minimum of 30 inches high In general, plant spacing must be sufficient planted a minimum of 10 feet on- to ensure the plant material achieves 80% Plant Materials center. cover in the proposed planting areas within Plant ground cover plugs at 12 to 18 a 3-year period. seed mixes are used, they should from inches on -center; Plant container- a a qualified supplier, should be appropriate grown plants at 18 to 24 inches on- for basin applications, and center, depending on the initial plant consist native species (unless the should consist should size and how large it will grow. t seeding is to establish maintained to Soil porosity is the fraction of a volume of soil material that is not solid, also referred to as the void space. As the volume of fines, defined as either clay particles (less than 2 microns, or 0.002 or silt particles (between 2 and 50 microns, or 0.002 and 0.05 min) within a given soil mix TT) is increased, there is a possibility that those fines may be flushed or migrate downward through the soil mix with each runoff event and eventually fill or otherwise clog the void space randomly throughout the mix and create preferential flow paths. In the short term this can lead to short circuiting and reduced volume reduction and pollutant removal, and in the long term may clog the soil layer. This tendency is offset by addition and maintenance of appropriate amounts of soil organic matter which binds soil fines into larger non -mobile aggregates. • General Filter Media Physical Composition. The mineral soil texture of the bioretention soil mix should be loamy coarse sand with no more than 10% clay, no more than 20% silt + clay and at least 75% of the sand fraction should be coarse or very coarse sand. • To allow for appropriate Cation Exchange Capacity (CEC) and nutrient removal, the mix should contain at least 10% soil fines (slit + clay) while meeting the overall texture specification above. The particle size analysis must be conducted on the mineral fraction only or following appropriate treatments to remove organic matter before particle size analysis. • The Filter Media should contain 3% to 5% organic matter by conventional Walkley-Black soil organic matter determination method or similar analysis. Soil organic matter is expressed on a dry weight basis and does not include coarse particulate (visible) components. Version 2.0, January 1, 2013 Page 25 of 62 VA DCR STORMWATER DESIGN SPECIFICATION NO. 9 BIORETENTION • The overall particle size distribution of the mix will vary since the sand fraction may contain some finer sizes as will native topsoils if utilized. As stated previously, the goal of the mixture is to achieve the desired constant head permeability. Therefore, the filter media composition noted above serves as the target recipe for the three ingredients, while the ultimate performance goal is to achieve a verified soil permeability or hydraulic conductivity (Ksat) of 1 to 2 inches per hour (or 30 to 60 cm/day). • The following is the recommended composition of the three media ingredients: o Sand shall consist of silica based coarse aggregate, angular or round in shape and meet the mixture grain size distribution below. No substitutions of alternate materials such as diabase, calcium carbonate, rock dust or dolomitic sands are accepted. In particular, mica can make up no more than 5% of the total sand fraction. The sand fraction may also contain a limited amount of particles > 2.0 min and < 9.5 min per the table below, but the overall sand fraction must meet the specification of >75% being coarse or very coarse sand o Components Trash Rack Frame Angle Bottom woven/welded Steel Rod widthd Iron Flat Steel Wire Mesh for Grate up to 36" ly2"Xll/2"Xs/4" 1%"Xy4" 1/4•• between 38"-60" 2'X2"Xy4` 2"Xya" %"80" and larger 9"X3'lr' 30]i 5/a" i S E n V Trash Rack General Notes: Additional Notes - 3' minimum trash rack width is required where available. Trash Racks 60" and wider: - Trash rack/mounting components to be - Large trash racks may be painted with Hot -dip galvanized. dark anti -corrosive paint, in lieu of - All mounting hardware to be stainless steel galvanizing. and threads to be coated in anti-sieze. - Additional structural reinforcements to be - Minimum i¢ " x 3 " mounting bolts to be added to trash rack frame as deemed used for trash rack. necessary to support all anticipated loads. - Trash racks to be mounted using top hinge or - A 3' x 3' (min) access door with locking aide pin connection as per details shown in Plate mechanism to be installed on front face. 45B-6. All hinged/pinned trash racks to have locking mechanism. Mechanism to be installed Trash Racks mounted on Headwalls: on the upper half to minimise potential to become inaccessible due to submergence - In case of space restrictions at headwalls, under water/sediment. use 2' min width of trash rack. - Mesh opening size to be Y2 of the - Add wire mesh on the back of trash rack diameter/width of orifice being protected, but to the top of headwall as shown in Plate not smaller than minimum mesh opening size 45116. provided in table above. LOW FLOW ORIFICE DEBRIS CAGE DETAIL NO SCALE Extend mesh from the top Apron General Notes: of the headwall to top of • 6" - 21a compacted to a minimum 95% rack of standard proctor (ASTM-618) with filter fabric to be placed under the Headwall rate removed for clarity. apron. (See details on Plate • Extend apron to wing -walls, in cases 45A-6) where wing -walls are part of the design. • Apron to be tied in to the riser/headwall c and wing -walls with rebar. ° 12" OC #6 Rebar • Concrete to be Class A-4. 1'6"� each way • All reinforcing steel to meet the current requirements of ASTM Spec. A-615. s � 6" thick concret 1'-6" apron extending oncrete apron entire width of the -T (see notes) structure 1'-6" -S" (min} - Trash Rack on Headwall t4' 72 " Min steel rod Plate bolted to riser Pipe welded to plate min s/a " clearance around steel rod 6/a Mounting hole for t/2 bolt Pipe welded to trash rack ¢" 1� min 1/6 " clearance around steel rod SIDE PIN DETAIL plate bolted to riser bolt Pipe welded to trash rack Mounting hole for 1/2 min 1/a " clearance around steel rod i/2 " Min steel rod Pipe welded to plate 3„ Pipe welded to trash rack min i/e " clearance around f min 1/B " clearance around steel rod steel rod TOP HINGE DETAIL DEBRIS CAGE MOUNTING DETAILS NO SCALE Min. Mesh Opening Size Low Flow -See BMP-See 6-1604.811, 8C 6-1604.811, 8C 4" 1" Sieve Size % Passing 3/8 in 9.50 min 100 No. 4 4.75 min 95 to 100 No. 8 2.36 min 80 to 100 No. 16 1.18 min 45 to 85 No. 30 0.6 min 15 to 60 No. 50 0.3 min 3 to 15 No. 100 0.15 min 0 to 4 Effective Particle size (D10) > 0.3mm Uniformity Coefficient 60/D10 <4.0 opsoil is generally defined as the combination of the other ingredients referenced in e bioretention soil media: sand, fines (silt and clay), and any associated soil organic atter. Since the objective of the specification is to carefully establish the proper blend 'these ingredients, the designer (or contractor or materials supplier) must carefully lest the topsoil source material in order to not exceed the amount of any one gredient. enerally, the use of a topsoil defined as a loamy sand, sandy loam, or loam (per the SDA Textural Triangle) will be an acceptable ingredient and in combination with the her ingredients meet the overall performance goal of the soil media. rganic matter materials used in the soil media mix should consist of well - ;composed natural C-containing organic materials such as peat moss, humus, compost onsistent with the material specifications fohmd in Design Specification #4 Compost mil Amendments), pine bark fines or other organic soil conditioning material. owever, per above, the combined soil mix should contain 3% to 5% soil organic atter on dry weight basis (grams organic matter per 100 grams dry soil) by the ralkley-Black method or other similar analytical technique. BMP PRACTICE DOCUMENTATION NOTE: CONTRACTOR SHALL NOTIFY THE TIMMONS GROUP PRIOR TO COMMENCEMENT OF CONSTRUCTION OF BMP PRACTICES INCLUDING THE THREE BIORETENTION FILTERS AND THE STORMTECH DETENTION SYSTEM WITH ISOLATOR ROW. A SPECIFIC PRECONSTRUCTION MEETING BETWEEN THE CONTRACTOR, ENGINEER, INSPECTOR, AND MANUFACTURER IS HIGHLY RECOMMENDED PRIOR TO INSTALLATION OF THESE PRACTICES TO ENSURE THESE PRACTICES ARE NOT ONLY INSTALLED CORRECTLY BUT ALSO DOCUMENTED THROUGHOUT CONSTRUCTION. IT IS THE CONTRACTORS SOLE RESPONSIBILITY TO DOCUMENT THE INSTALLATION OF THESE PRACTICES AND IF THEY PROCEED WITH DOING SO IT IS DONE AT THEIR OWN RISK. CONTRACTOR SHALL TAKE NOTES, PICTURES, AND MEASUREMENTS OF ALL STRATA LAYERS WITHIN THE BIORETENTION FACILITIES DURING CONSTRUCTION. IT IS HIGHLY RECOMMENDED TO TAKE PICTURES OF EACH MEASUREMENT OF EACH STRATA LAYER OF EACH FACILITY. WITHOUT DOCUMENTING TO THIS LEVEL OF DETAIL THE CONTRACTOR RUNS THE RISK OF DIGGING THE FACILITIES BACK UP TO PROVE THE CORRECT SECTIONS WERE INSTALLED. 24" NYLOPLAST BASIN CLEANOUT WITH DOME GRATE TOP = 681.00 RAMP SOIL TO LIP OF OVERFLOW STRUCTURE MIN SLOPE 3:1 BOTTOM OF BIORETENTION BASIN 680.50 3" HARDWOOD BARK MULCH BOTTOM ELEV 680.25 36" BIOFILTER MIX BOTTOM ELEV 677.25 3" NO. 8 STONE TOP ELEV 677.00 15" NO. 57 STONE J/ I ELEV.675.75 SEE CLEANOUT DETAIL SHEET CIA SCHEDULE40 MIRAFI 140N FILTER ) PVC UNDERDRAIN FABRIC OR EQUIVALENT. DAYLIGHTED ON SITE TO BE 2' WIDE SEE SHEET C5.0 CENTERED ON UNDERDRAIN NOTES 1. 36" BIOFILTER MEDIA DEPTH SHALL BE THE MINIMUM DEPTH AFTER A SETTLING PERIOD OF THREE DAYS. BIORETENTION FILTER 2A DETAIL (LEVEL 2) NO SCALE 24" NYLOPLAST BASIN CLEANOUT WITH DOME GRATE TOP = 685.75 RAMP SOIL TO LIP OF OVERFLOW STRUCTURE MIN SLOPE 3:1 BOTTOM OF ENTION BASIN BASIN 685.25 685.25 3" HARDWOOD BARK MULCH BOTTOM ELEV 685.00 36" BIOFILTER MIX BOTTOM ELEV 682.00 3" NO. 8 STONE BOTTOM ELEV 681.75 15" NO. 57 STONE ELEV. 680.75 SEE CLEANOUT DETAIL SHEET C1.1 4" PERFORATED SCHEDULE40 PVC UNDERDRAIN TO BE 2' WIDE CENTERED ON UNDERDRAIN NOTES 1. 36" BIOFILTER MEDIA DEPTH SHALL BE THE MINIMUM DEPTH AFTER A SETTLING PERIOD OF THREE DAYS. BIORETENTION FILTER 2C DETAIL (LEVEL 2) NO SCALE 24" NYLOPLAST BASIN CLEANOUT WITH DOME GRATE TOP = 684.00 RAMP SOIL TO LIP OF OVERFLOW STRUCTURE MIN SLOPE 3:1 BOTTOM OF BIORETENTION BASIN 683.50 3" HARDWOOD BARK MULCH BOTTOM ELEV 683.25 36" BIOFILTER MIX BOTTOM ELEV 680.25 3" NO. 8 STONE BOTTOM ELEV 680.00 15" NO. 57 STONE / I ELEV.678.75 SEE CLEANOUT DETAIL SHEET CIA SCHEDULE40 I PVC UNDERDRAIN MIRAFI 140N FILTER FABRIC OR EQUIVALENT. TO BE 2' WIDE CENTERED ON UNDERDRAIN NOTES 1. 36" BIOFILTER MEDIA DEPTH SHALL BE THE MINIMUM DEPTH AFTER A SETTLING PERIOD OF THREE DAYS. BIORETENTION FILTER 3A DETAIL (LEVEL 2) NO SCALE Overflow Orifices C 31A inch Holes Aluminum Fkd Washer A 1 (6 Places) B 1.75 in x 25 in /r Siainless Steel Screw Outlet"'���/// • _ / [6 Places) Pipe • ; .e 0 A DINER < 15" < 18' < 24" Plastic Wall - -'®� B HEIGHT 24" 30' 36" Anchor (6 Places) Fs .� i C WIDTH 23" 28" 34" 3/8 inch Holes AC� STANDARD DETAIL FOR TRASHGUARD FLAT BOTTOM CATCH BASINS 1-800-448-3636 PRETREATMENT DEVICE BIOFILTER 2C - INSTALL IN STR 238 OVER EXITING PIPE 237 NO SCALE V AA I VMDO Architects vmdo.com 434.296.5684 200 E Market Street 2000 Pennsylvania Ave NW Ste 7000 Charlottesville, VA 22902 Washington, DC 20006 �00090 s 0 �0 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. • rbemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 VDOE Project Number 002-34-00-101 VMDO Project Number 1284 Bryan D. Cichocld Z Lie. No. 53741 .o", Oilr .Gs 1Y' W97.� s ONAL Cs Checked By B. CICHOCKI Designed By K. ROESER Drawn By K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 STORMWATER MANAGEMENT QUALITY C6.,2 Drainage Area A Drainage Area A Land Cover (acres) A Soils B Soils C Soils D Soils Totals Land Cover Rv Forest/Open Space (acres) 0.00 0.00 Managed Turf (acres) 0.09 0.09 0.20 Impervious Cover (acres) 0.03 0.03 0.95 Total 0.12 Drainage Area B Drainage Area A Land Cover (acres) A Soils B Soils C Soils D Soils Totals Land Cover Rv Forest/Open Space (acres) 0.00 0.00 Managed Turf (acres) 1.50 1.50 0.20 Impervious Cover (acres) 1.95 1.95 0.95 Total 7 3.45 Total Phosphorus Available for Removal in D.A. A (lb/yr) 0.11 Post Development Treatment Volume in D.A. A (ft3) 169 'otal Phosphorus Available for Removal in D.A. B (lb/yr) 4.91 Post Development Treatment Volume in D.A. B (ft3) 7,814 6.a. Bioretention #1 or Micro-Bioretention #1 40 0 0 0 0 25 0.00 0.00 0.00 0.00 or Urban Bioretention (Spec #9) 6.b. Bioretention #2 or Micro-Bioretention #2 80 0.43 0.33 1,379 2,264 566 2,830 50 0.52 0.91 1.29 0.14 (Spec #9) 14. Manufactured Treatment Devices 14.a. Manufactured Treatment Device 0 0 0 0 0 20 0.00 0.00 0.00 0.00 Hydrodynamic 14.b. Manufactured Treatment Device -Filtering 0 0.40 0 0 1,379 1,379 40 0.00 0.87 0.35 0.52 14.c. Manufactured Treatment Device -Generic 0 0.61 1.22 0 0 4,650 4,650 40 0.00 2.92 1.17 1.75 Drainage Area C CLEAR BMP AREAS Drainage Area A Land Cover (acres) A Soils B Soils C Soils D Soils Totals Land Cover Rv Forest/Open Space (acres) 0.00 0.00 Managed Turf (acres) 0.63 0.63 0.20 Impervious Cover (acres) 0.72 0.72 0.95 Total 1.35 Fotal Phosphorus Available for Removal in D.A. C (lb/yr) 1.85 Post Development Treatment Volume in D.A. C (ft) 2,940 TOTAL IMPERVIOUS COVER TREATED (ac) 0.00 AREA CHECK: OK. TOTAL MANAGED TURF AREA TREATED (ac) 0.00 AREA CHECK: OK. TOTAL RUNOFF REDUCTION IN D.A. A (ft) 0 TOTAL PHOSPHORUS AVAILABLE FOR REMOVAL IN D.A. A (lb/yr) 0.11 TOTAL PHOSPHORUS REMOVED WITH RUNOFF REDUCTION PRACTICES IN D.A. A (lb/yr) 0.00 TOTAL PHOSPHORUS REMAINING AFTER APPLYING RUNOFF REDUCTION PRACTICES IN D.A. A (lb/yr) 0.11 SEE WATER QUALITY COMPLIANCE TAB FOR SITE COMPLIANCE CALCULATIONS TOTAL IMPERVIOUS COVER TREATED (ac) 1.95 AREA CHECK: OK. TOTAL MANAGED TURF AREA TREATED (ac) 1.04 AREA CHECK: OK. TOTAL PHOSPHORUS REMOVAL REQUIRED ON SITE (lb/yr) 2.74 TOTAL PHOSPHORUS AVAILABLE FOR REMOVAL IN D.A. B (lb/yr) 4.91 TOTAL PHOSPHORUS REMOVED WITHOUT RUNOFF REDUCTION PRACTICES IN D.A. B (lb/yr) 1.51 TOTAL PHOSPHORUS REMOVED WITH RUNOFF REDUCTION PRACTICES IN D.A. B (lb/yr) 1.29 TOTAL PHOSPHORUS LOAD REDUCTION ACHIEVED IN D.A. B (lb/yr) 2.80 TOTAL PHOSPHORUS REMAINING AFTER APPLYING BMP LOAD REDUCTIONS IN D.A. B (lb/yr) 2.11 6.b. Bioretention #2 SEE WATER QUALITY COMPLIANCE TAB FOR SITE COMPLIANCE CALCULATIONS NITROGEN REMOVED WITH RUNOFF REDUCTION PRACTICES IN D.A. B (lb/yr) 11.69 NITROGEN REMOVED WITHOUT RUNOFF REDUCTION PRACTICES IN D.A. B (lb/yr) 0.00 TOTAL NITROGEN REMOVED IN D.A. B (lb/yr) 11.69 4.a. Grass Channel A/B Soils (Spec #3) 20 0.13 0.14 0 115 462 577 15 0.00 0.36 0.12 0.25 6.b. Bioretention #2 TOTAL IMPERVIOUS COVER TREATED (ac) k__1.67 AREA CHECK: OK. TOTAL MANAGED TURF AREA TREATED (ac) 0.13 AREA CHECK: OK. 4.b. Grass Channel C/D Soils (Spec #3) 10 0 0 0 0 15 0.00 0.00 0.00 0.00 4.c. Grass Channel with Compost Amended 20 0 0 0 0 15 0.00 0.00 0.00 0.00 TOTAL PHOSPHORUS REMOVAL REQUIRED ON SITE (lb/yr) 2.74 Soils as per specs (see Spec #4) TOTAL PHOSPHORUS AVAILABLE FOR REMOVAL IN D.A. C (lb/yr) 1.85 6.a. Bioretention #1 or Micro-Bioretention #1 TOTAL PHOSPHORUS REMOVED WITHOUT RUNOFF REDUCTION PRACTICES IN D.A. C (lb/yr) 0.46 40 0 0 0 0 25 0.00 0.00 0.00 1 0.00 1 or Urban Bioretention (Spec #9) TOTAL PHOSPHORUS REMOVED WITH RUNOFF REDUCTION PRACTICES IN D.A. C (lb/yr) 0.34 6.b. Bioretention #2 or Micro-Bioretention #2 80 462 369 92 462 50 0.25 0.00 0.22 0.02 TOTAL PHOSPHORUS LOAD REDUCTION ACHIEVED IN D.A. C (lb/yr) 0.80 (Spec #9) TOTAL PHOSPHORUS REMAINING AFTER APPLYING BMP LOAD REDUCTIONS IN D.A. C (lb/yr) 1.05 14. Manufactured Treatment D. . 14.a. Manufactured Treatment Device- 0 0 0 0 0 20 0.00 0.00 0.00 0.00 SEE WATER QUALITY COMPLIANCE TAB FOR SITE COMPLIANCE CALCULATIONS Hydrodynamic 14.b. Manufactured Treatment Device- Filtering 0 0 0 0 0 20 0.00 0.00 0.00 0.00 14.c. Manufactured Treatment Device -Generic 0 0.53 0 0 1,828 1,828 40 0.00 1.15 0.46 0.69 Drainage Area D TOTAL IMPERVIOUS COVER TREATED (ac) 0.00 AREA CHECK: OK. •. • TOTAL MANAGED TURF AREA TREATED (ac) 0.00 AREA CHECK: OK. . �. Drainage Area A Land Cover (acres) ............................................. TOTAL RUNOFF REDUCTION IN D.A. D (ft3) 0 A Soils B Soils C Soils D Soils Totals Land Cover Rv TOTAL PHOSPHORUS AVAILABLE FOR REMOVAL IN D.A. D (lb/yr) 0.38 Forest/Open Space (acres) 0.00 0.00 1 TOTAL PHOSPHORUS REMOVED WITH RUNOFF REDUCTION PRACTICES IN D.A. D (lb/yr) 0.00 Managed Turf (acres) 0.40 0.40 0.20 TAIL PHOSPHORUS REMAINING AFTER APPLYING RUNOFF REDUCTION PRACTICES IN D.A. D (lb/yr) 0.38 Impervious Cover (acres) 0.09 0.09 0.95 'otal Phosphorus Available for Removal in D.A. D (lb/yr) 0.38 Total 0.49 Post Development Treatment Volume in D.A. D (ft) 601 SEE WATER QUALITY COMPLIANCE TAB FOR SITE COMPLIANCE CALCULATIONS Site Results (Water Quality Compliance) Area Checks FOREST/OPEN SPACE (ac) IMPERVIOUS COVER (ac) IMPERVIOUS COVER TREATED (ac) MANAGED TURF AREA (ac) MANAGED TURF AREA TREATED (ac) AREA CHECK D.A. A D.A. B D.A. C D.A. D D.A. E AREA CHECK 0.00 0.00 0.00 0.00 0.00 O K. 0.03 1.95 0.72 0.09 0.00 OK. 0.00 1.95 0.67 0.00 0.00 OK. 0.09 1.50 0.63 0.40 0.00 OK. 0.00 1 1.04 1 0.13 1 0.00 0.00 OK. OK. OK. OK. OK. OK. Site Treatment Volume (ft) 11,sz3 Runoff Reduction Volume and TP By Drainage Area RUNOFF REDUCTION VOLUME ACHIEVED (ft3) TP LOAD AVAILABLE FOR REMOVAL (lb/yr) TP LOAD REDUCTION ACHIEVED (lb/yr) TP LOAD REMAINING (lb/yr) D.A. A 0 2,264 485 0 0 2,748 0.11 4.91 1.85 0.38 0.00 7.24 0.00 2.80 0.80 0.00 0.00 3.60 0.11 2.11 1.05 0.38 0.00 3.64 NITROGEN LOAD REDUCTION ACHIEVED (lb/yr) 0.00 11.69 2.46 0.00 0.00 14.15 Total Phosphorus FINAL POST-DEVELOPMENT TP LOAD (lb/yr) 7.24 NOTE: TP LOAD REDUCTION REQUIRED (lb/yr) z.74 SITE PROVIDES TREATMENT BEYOND THE REQUIRED TP LOAD REDUCTION ACHIEVED (lb/yr) 3.60 LOAD REDUCTION TO ACCOUNT FOR THE REMOVAL OF TP LOAD REMAINING (lb/yr): 3.64 AN EXISTING BIORETENTION TREATING PARKING AREA. REMAINING TP LOAD REDUCTION REQUIRED (lb/yr): 0.00 ** THE REMOVAL OF THE EXISTING BIORETENTION ** TARGETTP REDUCTION EXCEEDED BY 0.85 LB/YEAR ** REQUIRES AN ADDITIONAL 0.64 LB/YR LOAD REDUCTION THUS 0.85 LB/YR OVER THE REQUIREMENT Total Nitrogen (For Information Purposes) IS PROVIDED. SEE CALC. BOOK FOR FURTHER DETAILS. POST -DEVELOPMENT LOAD (lb/yr) THE OWNER RESERVES THE RIGHT TO APPLY THE NITROGEN LOAD REDUCTION ACHIEVED (lb/yr)fftl SURPLUS TREATMENT OF 0.21LB/YR TO OTHER REMAINING POST -DEVELOPMENT NITROGEN LOAD (lb/yr) PROPERTIES WITHIN THE SAME HUC AND UNDER THE SAME OWNERSHIP PER 9VAC25-870-69-A.5 Bioretention Filter "2A" Design Level 2 Soil Type B Drainage Area Rv Impervious= 0.4 0.95 Managed Turf Bio= 0.26 0.20 Forest= 0 0.03 Total Drainage Area= 0.66 Rv= 0.65 Impervious/pervious ratio 61% Water Quality Volume= 1960 CF (1.25*(Rv)(A))/12 1.25 Tv From Upstream Practice= 512 CF Total Requred Volume Tv=l 2472 CF Storage Depth (ft) Void Ratios Ponding Depth= 0.5 1 Depth of Media Filter= 3 0.25 Stone Sump Depth 1.25 0.4 Total Storage Depth= 1.75 FT Surface Area Minimum Req= 1413 SF Providedl 14741 SF Total Volume Provided I2580 CF Forebay Volume Required Forebay Volume: 371 CF Forebay Dimensions: 18'x21' Provided Forebay Volume: 385 CF BIORETENTION SIZING COMPUTATIONS Bioretention Filter "2C" Design Level 2 Soil Type B Drainage Area Rv Impervious= 0.33 0.95 Managed Turf Bio= 0.17 0.20 Forest= 0 0.03 Total Drainage Area= 0.5 Rv= 0.70 Impervious/pervious ratio 66% Water Quality Volume= 1577 CF (1.25*(Rv) (A) )/ 12 1.25 Tv From Upstream Practice= 0 CF Total Required Volume Tv=l 1577 CF Storage Depth (ft) Void Ratios Ponding Depth= 0.5 1 Depth of Media Filter= 3 0.25 Stone Sump Depth 1.25 0.4 Total Storage Depth= 1.75 FT Surface Area Minimum Req=J 901 SF Providedl 9801 SF Total Volume Provided 1 1715 CF Forebay Volume Required Forebay Volume: 237 CF Forebay Dimensions: n/a, circular Provided Forebay Volume: 266 CF Bioretention Filter "3A" Design Level 2 Soil Type B Drainage Area Rv Impervious= 0.14 0.95 Managed Turf Bio= 0.13 0.20 Forest= 0 0.03 Total Drainage Area= 0.27 Rv= 0.59 Impervious/pervious ratio 52% Water Quality Volume= 721 CF (1.25*(Rv)(A))/12 1.25 Tv From Upstream Practice= -117 CF Total Required Volume Tv=l 604 CF Storage Depth (ft) Void Ratios Pending Depth= 0.5 1 Depth of Media Filter= 3 0.25 Stone Sump Depth 1.25 0.4 Total Storage Depth= 1.75 FT Surface Area Minimum Req= 345 SF Provided 350 SF Total Volume Provided I613 CF Forebay Volume Required Forebay Volume: I 91 CF Forebay Dimensions: n/a Provided Forebay Volume: 1 92 CF BIORETENTION FILTER 2A NOTES: BIORETENTION FILTER 2C NOTES: BIORETENTION FILTER 3A NOTES: TWO FORMS OF PRETREATMENT PROVIDED TWO FORMS OF PRETREATMENT PROVIDED TWO FORMS OF PRETREATMENT PROVIDED BY GRAVEL FLOW SPREADER AND UPSTREAM BY GRAVEL FLOW SPREADER AND UPSTREAM BY GRAVEL FLOW SPREADER AND UPSTREAM BY ISOLATOR ROW OF STORMTECH BY AN ACF TRASH GUARD CATCH BASIN BY A GRASS SWALE DIRECTING THE DETENTION SYSTEM. FILTER. DRAINAGE AREA TO THE PRACTICE. V AA I VMDO Architects vmdo.com 434.296.5684 200 E Market Street 2000 Pennsylvania Ave NW Ste 7000 Charlottesville, VA 22902 Washington, DC 20006 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. bemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 VDOE Project Number 002-34-00-101 VMDO Project Number 1284 Checked By Designed By Drawn By 16 Bryan D. Cichocki Z U Lie. No. 53741 � Gl SSIONAL dS87. B. CICHOCKI K. ROESER K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 STORMWATER MANAGEMENT QUALITY C63 VA DEQ STORMWATER DESIGN SPECIFICATION NO. 9 Virginia Stormwater Management Handbook, Chapter 9 9-C.8.0. PERMEABLE PAVEMENT: O&M CHECKLIST Inspection Date July 2013 Virginia Stormwater Management Handbook, Chapter 9 Project Site Plan/Permit Number Location Date BMP Placed in Service Date of Last Inspection Inspector OwnerlOwner's Representative As -Built Plans available: Y I N Facility Type: Level Level Ideally, each permeable pavement installation should be inspected in the Spring of each year, especially at large-scale installations. Z Z y >- Element of a I• Who Will BMP Potential Problem E m v How to Fix Problem Address Comments u O1 Problem o u ED a De m e There is excessive Remove immediately. Owner or trash and debris professional There is evidence Of Owner or ConWbuting erosino and/or bare or Stabilize immediately. Dralneg•Area exposed soil professional There is excessive Owner or landscape waste and Remove immediately. professional yard clippings Check that tree route have not penetrated the pavement and leaf residue has not Adjacent Trees and shrubs are dogged the pavement. Owner or within 5 feet of the Vegetation that limits amass Professional pavement surface or interferes with the permeable pavement operation must be pronetl or removed. There is excessive trash, debris or Remove immediately Owner or Inlets, Pre- sediment Professional Treatment Cells accumulation There is evidence of Owner or an d Flow Diversion erosion and Stabilize immediately professional Structures exposed soil Clean out sediment or Evidence or clogging debris. Remove and wash or Professional replace stone, as needed Eliminate standing water and establish vegetation; treat for mosquitoes as needed. If Pawmenl sprays are considered, then Owner or Surface Mosquito proliferation use a licensed past professional controller to apply an approved mosquito larvicide (only if absolutely necessa 9-C-22 3rd P tion InsPe� C kli and Certif cation: Permeable Pairmnul DEQ Spec. No. 7 & PFM 6-1304 Lioni Ndm•.H Coil�ive,M Fm, . Co. Plan Num se Parry Inspection lilt I M PMly lrrspeirm'e rbXe: La4lutle lLorgildtle' 'N W conlcl Iola lPlwreNUrbar BMP 10 NurMeraa mown on pbn and general location on Ue sire • IA cedifiratidn is required far all SW WBMP facilities under PFM 6-1360 at. seq.- • PA Virginia licensed professional engineer or licensed professional meeting the exemptim regWlanianjs ofth it tGREIR of Virginia §54.1-401 mu sLsignlhe cad flcation at the and of this checklist.. Instrutions: - _. n Check each item as complete, or write in "I'l for those items that are not applicable, •FIN in blanks for requested information on dimensions, materials, etc. • Provide one or more photos for applicable items; rheckboxes Indicate items that mail photon rre-Installation Meeting and Site Preparation CHECK XEC PHOTO DESCRIPTION Pat E OF INSPECTION i COMMENTS ElPre-InstallMlon M¢Hing with contractor designated to Install the fatuity ' 3rd Parry connector (or designee) A revkw of enecklht sad tentative scheiule tm Interim I anent ands mom hasmmdk,M,d1 ❑ eonmbkteg drainage mean are stabilized and not emdmg. ❑ ❑ stornewater runoff u diverted around the eecavnion area ma M.1roed conveya ic. Excavation CHECK HEC PHOTO DESCRIPTION DATEOFIXSPECTIONICWMEXTS ❑ Horizontal I ... no. StaMP is F accordance with the approved plans. ❑ subgradesurface tree of rocks, rows, add urge soim. Notes maybe filled wan base rb,preate.) ❑ For level 2 permeable pavement: Excavation boom is canned. ❑ No groundwater seepage or standing water is present Any standing water is dewaered Have acceptable dewatering device, and We design onsultant has been notified ❑ ❑ Excavation of facility has achieved proper e-air.e.m arse. par approved puns. THESE Layer and Underdmin Placement CHECK -PHOTO DESCRIPTION DATE OF INSPECTION I COMMENTS ❑ All aggregates(atom, sand, etc., as required) are clean, washed, and .mom to specifications. ❑ ❑ Perforated underdram sae and spacing per approved plane. Pipe Diameter_ Inched Mlotab al Pipe Spacing ft, slope__% Padorxmnsizeispacmg a ❑ Fixer layer and initial reservoir eyeraggagnes spread dumped) to avoid aggregate vegetation per approved plena. Depth of nner layer N ❑ ❑ IMe Paeablo liner (when required) is placerdle accordance with nufxturer specniwaom, p•rappmved pINMA p underdrain, observation wkksb and undertake Mimes (4 wye . cap al vp.l....nd, ins.) lnwx•a per aPp.oved pl.lw. Number At Observation wells Page I of 2 VA DEQ STORMWATER DESIGN SPECIFICATION NO. 7 9.3. Maintenance Inspections July 2013 Stabilize immediately. Mow, Irrigate and apply organic There is evidence of (not chemical) fertilizer, as erosion and / bare needed to keep grass Owner or or exposed soilit in grid healthy and dense enough to professional provide filtering while paver areas protecting the underlying soil. Remove any grass clippings. There is loose Remove immediately and material (e.g., bark, vacuum sweep the area to Professional sand, etc.) stored on prevent clogging the the pavement surface pavement porging. Pavement is stained The surface must be kept and/or clogged or dean and free of leaves, s eby water is ponded, debris, and sediment Pavement indicating the vacuum sweeping (without Surface pavement is not brooms or water spray) draining properly. immediately and, otherwise, Measure the at a frequency consistent dmwdown rate in the with the use and loadings observation well for encountered (at a minimum, three (3) days annual dry -weather following a storm sweeping in the Spring). Professional event tt eventthat exceeds Where paving blocks are h rein. If installed, the sweeper must standing water is still be calibrated so it does not observed in the well pick up the stones between after three days, this the p aver blocks. Fallowing is a clear sign that the the vacuum sweeping, test pavement is clogged. sections by There are significantpavement pouring water from 5 gallon amounts of sediment buckets,. ensure proper have accumulated drainage. between the avers. There is evidence or Structural surface deteriortetion, Repair or replace affected Integrity such as slumping, Braes, as necessary. Professional cracking, spelling or broken parvers. Observation Is each observation Repair, as necessary. Professional Wells well still ca ed? Outlets are obstructed Remove obstructions and Outlet or erosion and soil stabilize eroded or exposed Owner or expceure is evident Professional below the outlet. areas. 9-C-23 KiPa y Const ur ton) In ti C IhecliisYand-Ce�frcftiort-. Permeable Pavement Di Spec. No. 7 & PFM 6.1301 Stone Reservoir Aggregate Placement CHECK PHOTO OESLXMTION MATEOFIXSPECTIOX ICCMMENTS ❑ seek goverea wan p.eH.kna wnn no twe, new, m.xc.s.w - - wankhm. ❑ ❑ Stoma mservob lep[a9gregatep tip, sad mlcknns, are Prapptwed plan:. Depth At resivob layer segregate Inches Bedding Layer and Pavement Installation c x❑ X PHOTO DESCRIPTION OATECRI SPf E�COMMENTS ❑ Pre treatment Structures (when required) arc Install per approved plane Type of pretreatment ❑ Concentrated now in not being discharged direpuy onto the Permeable pavement. ❑ Pavement surface is even and runoff spreads worry across surface. ❑ Frew reduction MINI cap placed onlhe end of the pavement onderamin Par approved plans. ❑ ❑ Permeable wvC.niblock.,.tamswn'Iehregolr..dge. restraints are installed flush with we paver blocks per approved plan.. Site of Edge ReNralnts Type of Edge ReaNalnLL ❑ Aggregate layer Ported Installation of the underdrain system is pnepprovedpbna. Depth of aggregate layer_ ft. _ sue onsgregate layer_ - ❑ SignsnstalkderEPFM64301.313 ' _❑ For Remus asphaa and wmlms ooplrkn pavement the bill Permeablgty AN Moved tool has been properly tested (clean waterapPfed eta min. ate of 5 gpm restate entire surface), and all water imnoated dlrecnywnhout puddle formation or ..He..mnoR. Ll [I Provide a photo of Ise BMP facility aftermmpletlon of construction. final Certification rI_n1oThere 'fy Ih 'this as-buimti fo" dE mafidrIlt I�inw�ter mmen ac 1 y was raanagesp y m P^ indiwtlual under my responsible charge) and conforms to the approved plans, except as indicated.- gnaWre; License Number (Seep' O ('Certify means to slate or declare a professional opinion based on sufficient and appropriate onsite inspections and) (material tests conducted during constmcrion) Page 2 of 2 It is highly recommended that a spring maintenance inspection and cleanup be conducted at each permeable pavement site, particularly at large-scale applications. Maintenance of permeable pavement is driven by annual inspections that evaluate the condition and performance of the practice. The following are suggested annual maintenance inspection points for permeable pavements: • The drawdown rate should be measured at the observation well for three (3) days following a storm event in excess of 1/2 inch in depth. If standing water is still observed in the well after three days, this is a clear sign that clogging is a problem. • Inspect the surface of the permeable pavement for evidence of sediment deposition, organic debris, staining or ponding that may indicate surface clogging. If any signs of clogging are noted, schedule a vacuum sweeper (no brooms or water spray) to remove deposited material. Then, test sections by pouring water from a five gallon bucket to ensure they work. • Inspect the structural integrity of the pavement surface, looking for signs of surface deterioration, such as slumping, cracking, spalling or broken pavers. Replace or repair affected areas, as necessary. • Check inlets, pretreatment cells and any flow diversion structures for sediment buildup and structural damage. Note if any sediment needs to be removed. • Inspect the condition of the observation well and make sure it is still capped. • Generally inspect any contributing drainage area for any controllable sources of sediment or erosion. An example maintenance inspection checklist for Permeable Pavement can be accessed in Appendix C of Chapter 9 of the Virginia Stormwater Management Handbook (2010). Based on inspection results, specific maintenance tasks will be triggered and scheduled to keep the facility in operating condition. PERMEABLE PAVEMENT MAINTENANCE REQUIREMENTS No Scale 9.2 First Year Maintenance Operations Successful establishment of bioretention areas requires that the following tasks be undertaken in the first year following installation: • Initial inspections. For the first 6 months following construction, the site should be inspected at least twice after storm events that exceed 1/2 inch of rainfall. • Spot Reseeding. Inspectors should look for bare or eroding areas in the contributing drainage area or around the bioretention area and make sure the are immediate) stabilized with grass cover. Y Y • Fertilization. One-time, spot fertilization may be needed for initial plantings. • Watering. Watering is needed once a week during the first 2 months, and then as needed during first growing season (April -October), depending on rainfall. • Remove and replace dead plants. Since up to 10% of the plant stock may die off in the first year, construction contracts should include a care and replacement warranty to ensure that vegetation is properly established and survives during the first growing season following construction. The typical thresholds below which replacement is required are 85% survival of plant material and 100% survival of trees. 9.3 Maintenance Inspections It is highly recommended that a spring maintenance inspection and cleanup be conducted at each bioretention area. The following is a list of some of the key maintenance problems to look for: • Check to see if 75% to 90% cover (mulch plus vegetative cover) has been achieved in the bed, and measure the depth of the remaining mulch. P 9 • Check for sediment buildup at curb cuts, gravel diaphragms or pavement edges that prevents flow from getting into the bed, and check for other signs of bypassing. • Check for any winter- or salt -killed vegetation, and replace it with hardier species. • Note presence of accumulated sand, sediment and trash in the pre-treatment cell or filter beds, and remove it. • Inspect bioretention side slopes and grass filter strips for evidence of any rill or gully erosion, and repair it. • Check the bioretention bed for evidence of mulch flotation, excessive ponding, dead plants or concentrated flows, and take appropriate remedial action. • Check inflow points for clogging, and remove any sediment. • Look for any bare soil or sediment sources in the contributing drainage area, and stabilize them immediately. • Check for clogged or slow -draining soil media, a crust formed on the top layer, inappropriate soil media, or other causes of insufficient filtering time, and restore proper filtration characteristics. • Example maintenance inspection checklists for Bioretention areas can be accessed in Appendix C of Chapter 9 of the Virginia Stormwater Management Handbook (2010). 9.4 Routine and Non -Routine Maintenance Tasks Maintenance of bioretention areas should be integrated into routine landscape maintenance tasks. If landscaping contractors will be expected to perform maintenance, their contracts should contain specifics on unique bioretention landscaping needs, such as maintaining elevation differences needed for ponding, proper mulching, sediment and trash removal, and limited use of fertilizers and pesticides. A customized maintenance schedule must be prepared for each bioretention facility, since the maintenance tasks will differ depending on the scale of bioretention, the landscaping template chosen, and the type of surface cover. A generalized summary of common maintenance tasks and their frequency is provided in Table 9.8. The most common non -routine maintenance problem involves standing water. If water remains on the surface for more than 48 hours after a storm, adjustments to the grading may be needed or underdrain repairs may be needed. The surface of the filter bed should also be checked for accumulated sediment or a fine crust that builds up after the first several storm events. There are several methods that can be used to rehabilitate the filter (try the easiest things first, as listed below): • Open the underdrain observation well or cleanout and pour in water to verify that the underdrains are functioning and not clogged or otherwise in need of repair. The purpose of this check is to see if there is standing water all the way down through the soil. If there is standing water on top, but not in the underdrain, then there is a clogged soil layer. If the underdrain and stand pipe indicates standing water, then the underdrain must be clogged and will need to be snaked. • Remove accumulated sediment and till 2 to 3 inches of sand into the upper 8 to 12 inches of soil. • Install sand wicks from 3 inches below the surface to the underdrain layer. Sand wicks can be installed by excavating or augering (using a tree auger or similar tool) down to the gravel storage zone to create vertical columns which are then filled with a clean open -graded coarse sand material (coarse sand mix similar to the gradation used for the soil media). A sufficient number of wick drains of sufficient dimension should be installed to meet the design dewatering time for the facility. • Last resort - remove and replace some or all of the soil media. Table 9.8. Suaaested Annual Maintenance Activities for Bioretention Maintenance Tasks Frequency • Mowing of grass filter strips and Bioretention turf cover At least 4 times a year • Spot weeding, erosion repair, trash removal, and mulch raking Twice during growing season At Add reinforcement planting to maintain desired the vegetation density As needed • Remove invasive plants using recommended control methods • Stabilize the contributing drainage area to prevent erosion • Spring inspection and cleanup • Supplement mulch to maintain a 3 inch layer Annually • Prune trees and shrubs • Remove sediment in re -treatment cells and inflow points Once every 2 to 3 years • Replace the mulch layer Every 3 years BIORETENTION FACILITY MAINTENANCE REQUIREMENTS No Scale Inspection Activities Suggested Schedule • Alter several storm events or an extreme storm event, inspect for: signs of clogging of the inlet or outlet structures and sediment accumulation. As Needed • Inspect for: trash and debris. clogging of the outlet structures and any pilot channels; excessive erosion; sediment accumulation in the basin and inletloutlet structures: tree growth on dam or embankment: the presence of burrowing animals; standing water where there should be Semi-annually none; vigor and density of the grass turf on the basin side slopes and floor. differential settlement; cracking: leakage: and slope stability. • Inspect that the outlet structures, pipes, and dowTtstream and pilot channels arc free of debris and arc operational. • Note signs of pollution, such as oil sheens, discolored water, or unpleasant odors. Annually • Check for sediment accumulation in the facility. • Check for proper operation of control gates, valves or other mechanical devices. Maintenance Activities Suggested Schedule • Pcrform structural repairs to inlet and outlets Monthly or as needed • Clean and remove debris from inlet and outlet structures. • Repair damage to inlet and outlet structures, control gates, valves, or other mechanical devices; repair undercut or eroded areas. As Needed • Monitor sediment accumulations, and remove sediment when pond volume has become reduced significantly. As Needed DETENTION PIPE MAINTENANCE REQUIREMENTS No Scale Virginia Stormwater Management Handbook, Chapter 9 July 2013 Virginia Stormwater Management Handbook, Chapter 9 July 2013 9-C.10.0. BIORETENTION PRACTICES: O&M CHECKLIST Inspection Date Project Site Plan/Permit Number Location Date BMP Placed in Service Date of Last Inspection Inspector Owner/Owner's Representative As -Built Plans available: Y I N Facility Type: Level 1 _ Level 2 Facility Location: Hydraulic Configuration: G Surface ❑ On-line facility G Underground ❑ Off-line facility Filtration Media: Type of Pre -Treatment Facility: ❑ No filtration (e.g., dry well, ❑ Sediment forebay (above ground) permeable pavement, ❑ Sedimentation chamber infiltration facility, etc. ❑ Plunge pool ❑ Sand ❑ Stone diaphragm ❑ Bioretention Soil ❑ Grass filter strip ❑ Peat ❑ Grass channel ❑ Other: ❑ Other: Ideally, Bioretention facilities should be inspected and cleaned up annually, peferably during the Spring. During the first 6 months following construction of a bioretention facility, the site should be inspected at least twice after storm events that exceed 1124nch of rainfall. Watering is needed once a week during the first 2 months following installation, and then as needed during the first growing season (April-Oclober), depending upon rainfall. If vegetation needs to be replaced, one-time spot fertilization may be needed, preferably using an organic rather than a chemical fertilizer. Each facility should have a customized routine maintenance schedule addressing issues such as the following: grass mowing, weeding, trash removal, .mulch raking and maintenance, erosion repair, einfomement plantings, tree and shrub ruin and sediment removal. P 9. Z Z z y T Element of 0. moo, C. Who Will BMP Potential Problem w How to fix problem Address Comments a Problem a do d It c K Adequate vegetation Supplement as necessary Owner professional There is excessive Remove immediately y Owner or trash and debris professional There is evidence of Owner or erosion and / or bare Stabilize immediately professional Contributing or exposed soil Drainage Area There are excessive Remove immediately and recycle Owner or landscape waste or orcompost professional M clippings Oil, grease or other Identify and control the source of unaumorized the pollution. It may be necessary Owner or substances are to erect fences, signs, etc professional entering the facility Pre-Treabnent There is adequate Establish adequate access Professional access to the re- and, perhaps, 9-C-28 Virginia Stormwater Management Handbook, Chapter 9 Z Z Z_ i a Element of GIs Who Will BMP Potential Problem d How to fix problem Address Comments a Problem ° amr ad cu to treatment facility the locality Excessive trash, Remove immediately Owner or debris, or sediment. professional There is evidence of clogging (standing Identify and eliminate the source water, noticeable of the problem. ff necessary, odors, water stains, remove and dean or replace the Professional algae or floating clogged material. Pre -Treatment aquatic vegetation, or oil/grease) (continued) There Is evidence of Owner or erosion and/or Stabilize immediately professional exposed soil There is dead Restabilize and revegetate as Owner or vegetation or exposed necessary professional soil in the grands filter Check for sediment build-up at curb cuts, gravel diaphragms or Remove sediment and correct pavement edges that ary other problems that block Owner or prevent flow from inflow. professional getting into the bed, and check for bypassing. There is excessive Owner or Inlets trash, debris, or Remove immediately professional sediment. There is evidence of Repair erosion damage and Owner or erosion at or around reseed or otherwise destabilize professional the inlet with vegetation Remove woody vegetation etation from Inflow is hindered byy points of inflow and direct) above Owner or trees and/or shrubs. (Trees and shrubs professional maybe located maybe located closer to the Perimeter.) Identify the sours of erosion There is evidence of damage and prevent I from Omer or rill or gully erosion or recurring. Repair erosion damage professional bare soil and reseed or otherwise restabilize with vegetation Side Slopes (Annually, after There Is excess Owrler or mejoratorms) sediment Remove Immediately Professional accumulation Animal burrows must be Side slopes support backfilled and compacted. Professional nuisance animals. Burrowing animals should be humanely removed from the area. Plant composition is Determine if existing plant consistent with the materials are at least consistent approved plans and with general Bioretention design Professional any stakes or wires criteria and replace inconsistent are in gDori condition. species Vegetation (monthly) There should be 75- 90% cover (mulchtion), plus vegetaand Supplement vegetation and mulch the mulch cover as needed. should be 2-3 inches deep. 9-C-29 July 2013 Virginia Stormwater Management Handbook, Chapter 9 Z Z Z y ;- Element of I`• Who Will BMP Potential Problem d So v How to fix problem Address Comments Problem o a do d a o c z Replace contaminated mulch. If There is evidence of problem persists, test soils for hydrocarbons or other hydrocarbons and other toxic deleterious materials, substances. If excess levels are resulting in found, the soils, plants and mulch Professional unsatisfactory plant may all need to be replaced in growth or mortality, amordance with the approved construction plans. Irnasive species or weeds make up at Remove invasive species and Owner or least 10% of the excessive weeds immediately and professional Vegetatlon facility's station replace vegetation as needed. (monthly) Mow within a week. Grass (continued) species should be selected that have dense cover, are relatively Omer or The grass is too high slow growing, and require the professional least mowing and chemical Inputs. Grass should be from 6-10 inches high. Vegetation is Remove and replace. Increase diseased, dying or watering, but avoid using Professional dead chemical fertilizers, unless absolutely necessary. Winter -killed or sa- Owner or killed vegetation is Replace with hardier species. professional resent. Raise the level, loosen and amend or replace the media, as needed, to be consistent with the The fifter media is too state design criteria for low, too compacted, Bioretention (85-88% sand 8-12% or the composition is soil fines 35% organic matter in Professional inconsistent with form of leaf compost). Other design specifications remediation options are described in the maintenance section of the state design criteria for Bloretention The mulch is older than 3 years or is The mulch must be replaced Professional in poor every 2-3 years; condition FIN( Media There is evidence that Remove undesirable chemicals (Annually) chemicals, fertilizers, from media and facility and/or oiggmese are immed lately, and replace mulch Professional present or media as needed Remove trash and debris immediately. Check plant health There is excessive and, without damaging plants, Owner or trash, debris, or manually remove the sediment, professional sediment. especially if the depth exceeds 20% of the facility's design depth. There is evidence or Identify the source of erosion concentrated flows, damage and prevent a from erosion car exposed recurring. Repair the erosion Professional soil damage and reseed or otherwise restabilize with vegetation. 9-C-30 Virginia Stormwater Management Handbook, Chapter 9 July 2013 Z Z Z y Element of o- n' WhoWill BMP Potential Problem an d How to fix problem Address Comments m Problem o m ad v a rc The filter bed is clogged and/orflletl Redistribute the soil substrate and Professional ins it l remove sediment within 2 weeks. Ensure a 3-Inch surface depth of FINw Mai la The topsoil is in poor topsoil consistent with the state (Annually) condition (e.g., the pH design criteria for Bioretention (continued) level is not 6-7, the (loamy sand or sandy loam Professional composition is texture, with less than 5%clay inappropriate, etc.) content, andorganic 2matter content of at least 2%). If the pH is less than 6.5, spread limestone. Determine ff the pipe is clogged The perforated pipe Is with debris or ff woody roots have not conveying water pierced the pipe. Immediately Professional es designed clean out or replace the pipe, as necessary. Measure the dmw-down rate of the observation well for three days following a storm event in excess of 1/2 inches in depth. .After three days, if there is The underlying soil standing water on top but not in Interlace is clogged the underdrain, this indicates a UnderdrelM (there is evidence on cogged soil layer. If standing Proper the surface of soil water is both on the surface and Drainage crusting, standing in rile underdrain, then the water, the facility does underdrain is probably clogged. not d notewater between This should be promptly Professional stones, water investigated and remediated to ponds on the surface restore proper fltretion.Grading o/ of basin for mare then changes may be needed or hours after underdrain repairs made. The event) filter media may need to be raked, excavated and cleaned or replaced to correct the problem. Holes that are not consistent with the design and allow water to flow directly through a planter to the round must be plugged. The planter is unable to receive or detain stonnwater prior to Identify and correct sources of infiltration. Water clogging. Topsoil and sand/peat Owners does not drain from layer may need to be amended professional the reservoir within 3- with sand or replaced all together. 4 boors of after a Planters storm event. The planter has structural deficiencies, Including not, cracks, Make needed repairs Owner or failure, the immediately. professional planter is unable toand contain the filter media or vegetation Outlets are obstructed Outlet/ orerosion and soil Remove obstructions and Owner or Overflow exposure is evident stabilize eroded or exposed Professional Spillway below the outlet. areas. July 2013 Z Z Z i a Element of a (P. Who Will BMP Potential Problem a d How to fix problem Address Comments Problem upar m a me Outlet/ There is excessive Remove immediately, and keep Own er or Overflow trash, debris, or trash, the contributing area free of fresh at the outlet and debris Spillway (continued) Any grates present are in ood condition Repair or replace as necessary Owner or professional Observation Is the observation well Repair, as necessary. Professional Well still capped? Establish adequate access. Access to the Remove woody vegetation and Professional Infiltration facility or its debris that may block access. and, perhaps, components is Ensure that hardware can be the locality adequate opened and operated. There is evidence of Fill in low spots and stabilize; Owner or standing water cored flow problems causing Professional din . ponEliminate stangant pools and establish vegetation; treat for Overall mosquitoes as needed. If sprays Mosquito proliferation am considered, then a mosquito Owner or larvicide, such as Bacillus professional thurendensis or Altoside formulations can be applied ortlyff absolutely necessary. Complains from local Correct real problems Owner or Residents rofessional Encroachment on the Inform involved property owners Owner or bloretention area or of BMPs status ; clear mark the professional Basement by buildings or other i boundaries s of the receiving (and perhaps structures perilous area, as needed Me locality) BIORETENTION FACILITY MAINTENANCE REQUIREMENTS No Scale 9-C-31 V M I) 0 VMDO Architects vmdo.com 434.296.5684 200 E Market Street 2000 Pennsylvania Ave NW Ste 7000 Charlottesville, VA 22902 Washington, DC 20006 ��0090 • 0, TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. • em ar1 e Cou'JVT Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 6dNEFRr9*tMluntIwr 002-34-00-101 VMDO Project Number 1284 Bryan D. Cichocki Z H Lie. No. 53741 4�1 v�a7 Y5873 Checked By Be CICHOCKI Designed By K. ROESER Drawn By K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 BMP MAINTENANCE C6m4 VAjx I) 0 VMDO Architects vmdo.com 434.296.5684 PROJECT INFORMATION �0(S�SQJJ/J / ry a Q ENGINEERED JIM CLARK PRODUCT MANAGER: 240-463-0124 JAMES.CLARK@ADS-PIPE.COM #StorMTeCty FOR STORMTECH INSTRUCTIONS, DOWNLOAD THE -� ADS SALES REP: MICHAEL GREEN 30240-00112 MIICHAEL.GREENQADS-PIPE.COM R INSTALLATION APP PROJECT NO: S188674 ADVANCED DRAINAGE SYSTEMS, INC. CROZET ELEMENTARY SCHOOL CROZET, VA MC-3500 STORMTECH CHAMBER SPECIFICATIONS 1. CHAMBERS SHALL BE STORMTECH MC3500. 2. CHAMBERS SHALL BE ARCH -SHAPED AND SHALL BE MANUFACTURED FROM VIRGIN, IMPACT -MODIFIED POLYPROPYLENE COPOLYMERS. 3. CHAMBERS SHALL MEET THE REQUIREMENTS OF ASTM F2418-16a, "STANDARD SPECIFICATION FOR POLYPROPYLENE (PP) CORRUGATED WALL STORMWATER COLLECTION CHAMBERS" CHAMBER CLASSIFICATION 45x76 DESIGNATION SS. 4. CHAMBER ROWS SHALL PROVIDE CONTINUOUS, UNOBSTRUCTED INTERNAL SPACE WITH NO INTERNAL SUPPORTS THAT WOULD IMPEDE FLOW OR LIMIT ACCESS FOR INSPECTION. 5. THE STRUCTURAL DESIGN OF THE CHAMBERS, THE STRUCTURAL BACKFILL, AND THE INSTALLATION REQUIREMENTS SHALL ENSURE THAT THE LOAD FACTORS SPECIFIED IN THE AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS, SECTION 12.12, ARE MET FOR: 1) LONG -DURATION DEAD LOADS AND 2 SHORT -DURATION LIVE LOADS BASED ON THE AASHTO DESIGN TRUCK WITH CONSIDERATION FOR IMPACT AND MULTIPLE VEHICLE PRESENCES. 6. CHAMBERS SHALL BE DESIGNED, TESTED AND ALLOWABLE LOAD CONFIGURATIONS DETERMINED IN ACCORDANCE WITH ASTM F2787, "STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS". LOAD CONFIGURATIONS SHALL INCLUDE: 1) INSTANTANEOUS (<I MIN) AASHTO DESIGN TRUCK LIVE LOAD ON MINIMUM COVER 2) MAXIMUM PERMANENT 5-YR COVER LOAD AND 3 ALLOWABLE COVER WITH PARKED 1-WEE AASHTO DESIGN TRUCK. 7. REQUIREMENTS FOR HANDLING AND INSTALLATION: • TO MAINTAIN THE WIDTH OF CHAMBERS DURING SHIPPING AND HANDLING, CHAMBERS SHALL HAVE INTEGRAL, INTERLOCKING STACKING LUGS. • TO ENSURE A SECURE JOINT DURING INSTALLATION AND BACKFILL, THE HEIGHT OF THE CHAMBER JOINT SHALL NOT BE LESS THAN 3". • TO ENSURE THE INTEGRITY OF THE ARCH SHAPE DURING INSTALLATION, a) THE ARCH STIFFNESS CONSTANT AS DEFINED IN SECTION 6.2.8 OF ASTM F2418 SHALL BE GREATER THAN OR EQUAL TO 500 LBS/INHN. AND b) TO RESIST CHAMBER DEFORMATION DURING INSTALLATION AT ELEVATED TEMPERATURES (ABOVE 73' F / 23° C), CHAMBERS SHALL BE PRODUCED FROM REFLECTIVE GOLD OR YELLOW COLORS. 8. ONLY CHAMBERS THAT ARE APPROVED BY THE SITE DESIGN ENGINEER WILL BE ALLOWED. UPON REQUEST BY THE SITE DESIGN ENGINEER OR OWNER, THE CHAMBER MANUFACTURER SHALL SUBMIT A STRUCTURAL EVALUATION FOR APPROVAL BEFORE DELIVERING CHAMBERS TO THE PROJECT SITE AS FOLLOWS: • THE STRUCTURAL EVALUATION SHALL BE SEALED BY A REGISTERED PROFESSIONAL ENGINEER. • THE STRUCTURAL EVALUATION SHALL DEMONSTRATE THAT THE SAFETY FACTORS ARE GREATER THAN OR EQUAL TO 1.95 FOR DEAD LOAD AND 1.75 FOR LIVE LOAD, THE MINIMUM REQUIRED BY ASTM F2787 AND BY SECTIONS 3 AND 12.12 OF THE AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS FOR THERMOPLASTIC PIPE. • THE TEST DERIVED CREEP MODULUS AS SPECIFIED IN ASTM F2418 SHALL BE USED FOR PERMANENT DEAD LOAD DESIGN EXCEPT THAT IT SHALL BE THE 75-YEAR MODULUS USED FOR DESIGN. 9. CHAMBERS AND END CAPS SHALL BE PRODUCED AT AN ISO 9001 CERTIFIED MANUFACTURING FACILITY. IMPORTANT - THIS PROJECT REQUIRES COMPACTION OF EMBEDMENT STONE AND REQUIREMENTS FOR STONE HARDNESS AND SHAPE WHICH ARE NOT SPECIFIED IN OTHER STORMTECH DOCUMENTS. CONTRACTORS MUST FOLLOW THE SPECIAL PROVISIONS IN THIS PLAN SET. INC. IMPORTANT - NOTES FOR THE BIDDING AND INSTALLATION OF MC-3500 CHAMBER SYSTEM 1. STORMTECH MC3500 CHAMBERS SHALL NOT BE INSTALLED UNTIL THE MANUFACTURER'S REPRESENTATIVE HAS COMPLETED A PRE -CONSTRUCTION MEETING WITH THE INSTALLERS. 2. STORMTECH MC-3500 CHAMBERS SHALL BE INSTALLED IN ACCORDANCE WITH THE "STORMTECH MC3500/MC-4500 CONSTRUCTION GUIDE". 3. CHAMBERS ARE NOT TO BE BACKFILLED WITH A DOZER OR AN EXCAVATOR SITUATED OVER THE CHAMBERS. STORMTECH RECOMMENDS 3 BACKFILL METHODS: • STONESHOOTER LOCATED OFF THE CHAMBER BED. • BACKFILL AS ROWS ARE BUILT USING AN EXCAVATOR ON THE FOUNDATION STONE OR SUBGRADE. • BACKFILL FROM OUTSIDE THE EXCAVATION USING A LONG BOOM HOE OR EXCAVATOR. 4. THE FOUNDATION STONE SHALL BE LEVELED AND COMPACTED PRIOR TO PLACING CHAMBERS. 5. JOINTS BETWEEN CHAMBERS SHALL BE PROPERLY SEATED PRIOR TO PLACING STONE. 6. MAINTAIN MINIMUM -9" 230 mm SPACING BETWEEN THE CHAMBER ROWS. 7. INLET AND OUTLET MANIFOLDS MUST BE INSERTED A MINIMUM OF 12' 300 mm INTO CHAMBER END CAPS. 8. EMBEDMENT STONE SURROUNDING CHAMBERS MUST BE A CLEAN CRUSHED ANGULAR STONE MEETING THE AASHTO M43 DESIGNATION OF #3 OR #4. 9. STONE MUST BE PLACED ON THE TOP CENTER OF THE CHAMBER TO ANCHOR THE CHAMBERS IN PLACE AND PRESERVE ROW SPACING. 10. THE CONTRACTOR MUST REPORT ANY DISCREPANCIES WITH CHAMBER FOUNDATION MATERIALS BEARING CAPACITIES TO THE SITE DESIGN ENGINEER. 11. ADS RECOMMENDS THE USE OF "FLEXSTORM CATCH IT' INSERTS DURING CONSTRUCTION FOR ALL INLETS TO PROTECT THE SUBSURFACE STORMWATER MANAGEMENT SYSTEM FROM CONSTRUCTION SITE RUNOFF. NOTES FOR CONSTRUCTION EQUIPMENT 1. STORMTECH MC3500 CHAMBERS SHALL BE INSTALLED IN ACCORDANCE WITH THE "STORMTECH MC3500/MC-4500 CONSTRUCTION GUIDE". 2. THE USE OF EQUIPMENT OVER MC3500 CHAMBERS IS LIMITED: • NO EQUIPMENT IS ALLOWED ON BARE CHAMBERS. • NO RUBBER TIRED LOADER, DUMP TRUCK OR EXCAVATORS ARE ALLOWED UNTIL PROPER FILL DEPTHS ARE REACHED IN ACCORDANCE WITH THE "STORMTECH MC-MOIMC-4500 CONSTRUCTION GUIDE". • WEIGHT LIMITS FOR CONSTRUCTION EQUIPMENT CAN BE FOUND IN THE "STORMTECH MC3500/MC-4500 CONSTRUCTION GUIDE". 3. FULL 36' (900 mm) OF STABILIZED COVER MATERIALS OVER THE CHAMBERS IS REQUIRED FOR DUMP TRUCK TRAVEL OR DUMPING. USE OF A DOZER TO PUSH EMBEDMENT STONE BETWEEN THE ROWS OF CHAMBERS MAY CAUSE DAMAGE TO CHAMBERS AND 13 NOT AN ACCEPTABLE BACKFILL METHOD. ANY CHAMBERS DAMAGED BY USING THE "DUMP AND PUSH" METHOD ARE NOT COVERED UNDER THE STORNTECH STANDARD WARRANTY. CONTACT STORMTECH AT 1-888-892-2694 WITH ANY QUESTIONS ON INSTALLATION REQUIREMENTS OR WEIGHT LIMITS FOR CONSTRUCTION EQUIPMENT. 0 O = _ �_ cVn It < Q V L 15.93' H w _ 13.33` F W N L) o LU W LU L) a W W 3 UU W o O w U 0 o a h a w . z w w z 0 a N < gg `gya q'3 FMI ` A 6 0 fi11 u9 Do o oOZ a DD S� B€ 0 wQ Ir fro w iow s In WW. Z. •� N �wKJy� S� 89.7T 110.39 7 SHEET 3 7 of PROPOSED LAYOUT 41 STORMTECH MC3500 CHAMBERS 12 STORMTECH MC3500 END CAPS 12 STONE ABOVE (in) 30 STONE BELOW (in) 40 %STONE VOID 10046 INSTALLED SYSTEM VOLUME ABOVE ELEVATION 684.75 (CF) (PERIMETER STONE INCLUDED) 3,288 SYSTEM AREA (III 4W SYSTEM PERIMETER(ft) PROPOSED ELEVATIONS 700 i MAXIMUM GRADE PER ENGINEER'S PLAN 691.25 MINIMUM ALLOWABLE GRADE (UNPAVED WITH TRAFFIC) 690.75 MINIMUM ALLOWABLE GRADE (UNPAVED NO TRAFFIC) _ 90.75 MINIMUM ALLOWABLE GRADE (BASE OF FLEXIBLE PAVEMENT) 690.75 MINIMUM ALLOWABLE GRADE (TOP OF RIGID PAVEMENT) 690.25 TOP OF STONE 689.25 TOP OF MC-3500 CHAMBER 606.71 24" TOP MANIFOLD INVERT 606.00 INSERTA TEE SIDE INLET CONNECTION INVERT 685.67 24" ISOLATOR ROW CONNECTION INVERT 685.67 24" BOTTOM MANIFOLD INVERT 685.50 BOTTOM OF MC3500 CHAMBER 684.75 UNDERDRAIN INVERT 683.00 BOTTOM OF STONE 6" ADS N-12 DUAL WALL PERFORATED HDPE UNDERDRAIN (SIZE TBD BY ENGINEER / SOLID OUTSIDE PERIMETER STONE) PLACE MINIMUM 17.6 OF ADS GEOSYNTHETICS 315WTM WOVEN GEOTEXTILE OVER BEDDING STONE AND UNDERNEATH CHAMBER FEET FOR SCOUR PROTECTION AT ALL CHAMBER INLET ROWS 24" X 24' ADS 12 TOP MANIFOLD INVERT 14.48" ABOVE CHAMBER BASE (SEE NOTES) 24" PREFABRICATED END CAP, PART# MC35001EPP24BW TYP OF ALL MG3500 24" BOTTOM CONNECTIONS AND ISOLATOR ROWS STRUCTURE 408 PER PLAN W/ELEVATED BYPASS MANIFOLD MAXIMUM INLET FLOW 8.5 CFS (DESIGN BY ENGINEER / PROVIDED BY OTHERS) ISOLATOR ROW (SEE DETAIL / TYP 2 PLACES) INSPECTION PORT (TYP 2 PLACES) NOTES • MANIFOLD SIZE TO BE DETERMINED BY SITE DESIGN ENGINEER. SEE TECHNICAL NOTE 6.32 FOR MANIFOLD SIZING GUIDANCE. • DUE TO THE ADAPTATION OF THIS CHAMBER SYSTEM TO SPECIFIC SITE AND DESIGN CONSTRAINTS, IT MAY BE NECESSARY TO CUT AND COUPLE ADDITIONAL PIPE TO STANDARD MANIFOLD COMPONENTS IN THE FIELD. • THE SITE DESIGN ENGINEER MUST REVIEW ELEVATIONS AND IF NECESSARY ADJUST GRADING TO ENSURE THE CHAMBER COVER REQUIREMENTS ARE MET. • THIS CHAMBER SYSTEM WAS DESIGNED WITHOUT SITE -SPECIFIC INFORMATION ON SOIL CONDITIONS OR BEARING CAPACITY. THE SITE DESIGN ENGINEER IS RESPONSIBLE FOR DETERMINING THE SUITABILITY OF THE SOIL AND PROVIDING THE BEARING CAPACITY OF THE INSITU SOILS. THE BASE STONE DEPTH MAY BE INCREASED OR DECREASED ONCE THIS INFORMATION IS PROVIDED. TIER 7 DEEP COVER SPECIAL PROVISIONS 1. INSTALLATION REQUIREMENTS SHALL BE AS SPECIFIED IN THE STORMTECH DESIGN MANUALS AND CONSTRUCTION GUIDES EXCEPT AS MODIFIED IN THESE SPECIAL PROVISIONS. 2. ATTENTION IS CALLED TO "TABLE 1 -ACCEPTABLE FILL MATERIALS" IN THE STORMTECH CONSTRUCTION GUIDE AND ALL OTHER APPEARANCES OF THE "ACCEPTABLE FILL MATERIALS TABLE. FOR AREAS OF THE SYSTEM WITH COVER ABOVE 7 FEET (2.1 m) FOR THE MC-4500 AND ABOVE 8 FEET (2.4 m) FOR THE MC3500, EMBEDMENT STONE SHALL BE COMPACTED WITH 1-3 PASSES OF A WALK BEHIND VIBRATORY PLATE COMPACTOR OR JUMPING JACK IN 12-18. (300-450 mm) LIFTS. 3. STONE SHALL BE CLEAN, CRUSHED, AND ANGULAR AND SHALL CONFORM TO THE SPECIFICATIONS DESIGNATED IN THE ACCEPTABLE FILL MATERIALS TABLE. 4. STONE SHALL BE HARD AND DURABLE. IT IS THE ENGINEER'S OR CONTRACTOR'S RESPONSIBILITY TO SELECT HARD AND DURABLE STONE. STORMTECH CONSIDERS AN LA ABRASION VALUE OF LESS THAN OR EQUAL TO 30 TO BE HARD STONE. 5. FOUNDATION STONE SHALL BE MECHANICALLY COMPACTED WITH A VIBRATORY ROLLER OR VIBRATORY PLATE IN 6' (152 mm) LIFTS. 6. EMBEDMENT STONE MUST BE DUMPED IN PLACE BY A STONE SHOOTER OR CONVEYOR OR EXCAVATOR. 7. INSPECTION DURING THE INSTALLATION BY THE ENGINEER, OWNER OR OTHER REPRESENTATIVE IS RECOMMENDED. THE INSPECTION SHALL INCLUDE OBSERVATIONS OF THE CHAMBER SYMMETRY DURING BACKFILLING TO ENSURE THE CONTRACTOR'S METHODS ARE NOT CAUSING UNACCEPTABLE DISTORTION OF THE CHAMBERS. S. AN ADS FIELD TECHNICIAN WILL CONDUCT PRE -CONSTRUCTION MEETING TO TRAIN REPRESENTATIVES INSTALLING THE CHAMBERS AND THOSE WHO MAY BE PERFORMING INSTALLATION INSPECTIONS. 24" X 24" ADS N-12 TOP MANIFOLD INVERT 14.48" ABOVE CHAMBER BASE (SEE NOTES) 24" PREFABRICATED END CAP, PART# MC35001EPP24TW TYP OF ALL MC3500 24" TOP CONNECTIONS j� PROPOSED STRUCTURE W/ELEVATED BYPASS CONNECTION 24" X 24" ADS N-12 BOTTOM MANIFOLD MAXIMUM INLET FLOW 8.5 CFS INVERT 2.06" ABOVE CHAMBER BASE (DESIGN BY ENGINEER/ PROVIDED BY OTHERS) (SEE NOTES) PROPOSED ADS N-12 45° PIPE BEND 1Y INSERTA TEE SIDE INLET CONNECTION INVERT 6" ABOVE CHAMBER BASE (SEE DETAIL / FIELD INSTALL) OUTLET CONTROL STRUCTURE PER PLAN a MAXIMUM OUTLET FLOW 14.0 CFS PROPOSED ADS N-12 45° PIPE BEND (DESIGN BY ENGINEER! PROVIDED BY OTHERS) 24" X 24" ADS N-12 BOTTOM MANIFOLD INVERT 2.06" ABOVE CHAMBER BASE (SEE NOTES) SJ PROPOSED ADS N-12 45° PIPE BEND �r pomm■■■■■■■■■1 dIF51 �� :. MANIFOLD 1 (SEE NOTES) INVERT NOTES) o • • - BASE STRUCTURE PER PLAN BYPASS CONNECTROWN (DESIGN BY ENGINEER I PROVIDED BY OTHERS) O O _ IY Q F Z W LU N � O O w Y U w U o G y o o 2 o m o LU J L) LU �, F- 3 WI iR o o a w w U o 0. a w� z Z1n o �� 012 Q SHEET 2 OF 7 O ACCEPTABLE FILL MATERIALS: STORMTECH MC-3500 CHAMBER SYSTEMS = Q AASHTO MATERIAL Tvn MATERIAL LOCATION DESCRIPTION COMPACTION / DENSITY REQUIREMENT W s CLASSIFICATIONS Q FINAL FILL: FILL MATERIAL FOR LAYER'D' STARTS FROM THE PREPARE PER SITE DESIGN ENGINEER'S PLANS. PAVED ~ W w U E TOP OF THE'C' LAYER TO THE BOTTOM OF FLEXIBLE ANY SOILlROCK MATERIALS, NATIVE SOILS, OR PER ENGINEER'S PLANS. D N/A INSTALLATIONS MAY HAVE STRINGENT MATERIAL AND Z o o PAVEMENT OR UNPAVED FINISHED GRADE ABOVE. NOTE THAT CHECK PLANS FOR PAVEMENT SUBGRADE REQUIREMENTS. PREPARATION REQUIREMENTS. W NO 2 PAVEMENT SUBBASE MAYBE PART OF THE'D' LAYER LU AASHTO M145' J U LU �+ INITIAL FILL: FILL MATERIAL FOR LAYER'C' STARTS FROM THE GRANULAR WELL -GRADED SOIL/AGGREGATE MIXTURES, <35% FINES OR A-1, A-24, A3 BEGIN COMPACTIONS AFTER 24" (600 mm) OF MATERIAL OVER 3 a TOP OF THE EMBEDMENT STONE ('B' LAYER) TO 24' (800 mm) PROCESSED AGGREGATE. THE CHAMBERS IS REACHED. COMPACT ADDITIONAL LAYERS IN W 8 C ABOVE THE TOP OF THE CHAMBER. NOTE THAT PAVEMENT MOST PAVEMENT SUBBASE MATERIALS CAN BE USED IN LIEU OF THIS OR 12" (300 mm) MAX LIFTS TO A MIN. 95%PROCTOR DENSITY FOR WELL GRADED MATERIAL AND 95%RELATIVE DENSITY FOR N Q U w = SUBBASE MAY BE A PART OF THE'C' LAYER. LAYER AASHTO M43' PROCESSED AGGREGATE MATERIALS. F a 3, 357, 4, 467, 5, 56, 57, 6, 67, 68, 7, 78, 8, 89, 9, 10 U o A B EMBEDMENT STONE: FILL SURROUNDING THE CHAMBERS FROM THE FOUNDATION STONE ('A' LAYER) TO THE'C LAYER CLEAN, CRUSHED, ANGULAR STONE AASHTO M43' COMPACTION REQUIRED. SEE SPECIAL REQUIREMENTS ON = ABOVE. 3,4 LAYOUT PAGE. w = m r A FOUNDATION STONE: FILL BELOW CHAMBERS FROM THE SUBGRADE UP TO THE FOOT (BOTTOM) OF THE CHAMBER. CLEAN, CRUSHED, ANGULAR STONE AASHTO M431 3,4 PLATE COMPACT OR ROLL TO ACHIEVE A FLAT SURFACE Z� o M o� PLEASE NOTE: fiw 1. THE LISTED AASHTO DESIGNATIONS ARE FOR GRADATIONS ONLY. THE STONE MUST ALSO BE CLEAN, CRUSHED, ANGULAR. FOR EXAMPLE, A SPECIFICATION FOR #4 STONE WOULD STATE: "CLEAN, CRUSHED, ANGULAR NO.4 (AASHTO M43) STONE". z o x 3 2. STORMTECH COMPACTION REQUIREMENTS ARE MET FORA' LOCATION MATERIALS WHEN PLACED AND COMPACTED IN 9" (230 mm) (MAX) LIFTS USING TWO FULL COVERAGES WITH A VIBRATORY COMPACTOR. g 3. WHERE INFILTRATION SURFACES MAY BE COMPROMISED BY COMPACTION, FOR STANDARD DESIGN LOAD CONDITIONS, A FLAT SURFACE MAY BE ACHIEVED BY RAKING OR DRAGGING WITHOUT COMPACTION EQUIPMENT. FOR SPECIAL LOAD DESIGNS, CONTACT STORMTECH FOR COMPACTION REQUIREMENTS. rc a 4. ONCE LAYER'C' IS PLACED, ANY SOIL/MATERIAL CAN BE PLACED IN LAYER 'D` UP TO THE FINISHED GRADE. MOST PAVEMENT SUBBASE SOILS CAN BE USED TO REPLACE THE MATERIAL REQUIREMENTS OF LAYER 'C' OR 'D' AT THE SITE DESIGN ENGINEER'S DISCRETION. s ° Nn @ ADS GEOSYNTHETICS 601T NON -WOVEN GEOTEXTILE ALL 5 AROUND CLEAN, CRUSHED, ANGULAR STONE IN A & B LAYERS a -maOrmM OFMERE RUTTING PERIMETERSTONEs\r��r�l�iY q%\\�Ap\y1�\ :)\_all\\�'D�<Y�\\\•\��\.aye\ INsrnuaTwNs wNeae Nurnnc Paorn veNrores wuroccua"\aj: ROIVEHICLES PAVED MAXL i //II //1I U11 1l II /1,:"/il-IF�.r INCREASE COVER TO 24•(600 mmt {. ) mm) X ELEV w� s oFu �18"(450 (SEE NOTE 4) Tr. p=.If //-/ice t� G !�{/i 4= /F - C+ /i_ /i_ = MIN" THIS PROJECT • i� 12" MINI � W a (300 mm) O EXCAVATION WALLfit (CAN BE SLOPED OR VERTICAL) 45" '"THIS CROSS SECTION DETAIL REPRESENTS ( 1143 mm) MINIMUM REQUIREMENTS FOR INSTALLATION. 1 _ PLEASE SEE THE LAYOUT SHEET(S) FOR ° u p II PROJECT SPECIFIC REQUIREMENTS. K !ll 7-� A w s II�II��I�III�II IF -II DEPTH OF STONE TO BE DETERMINED 1�1= _ �ll �1= �ll = qll = ll �I- �I- �ll �I- �ll 1 6" (150 mm) MIN I I _Ill ,�� �� -r �� - - ��- -��i ��� -�� -� BY SITE DESIGN ENGINEER 9" (230 mm) MIN III I u �r II Iui III 17 II II -II )� � � - i� --uI)LuI-Iu�l� ,Ii� MC_ 500 -III - -III END CAP SUBGRADE SOILS (150 m) MINI 77"(1956 mm) 12" (300 mm) MIN a t (SEE NOTE 3) DW N0. CROZET ELEMENTARY SCHOOL SPECIFIC CROSS SECTION ZgJ m q NOTES: 2 w Q �o =a arc ow 1. CHAMBERS SHALL MEET THE REQUIREMENTS OF ASTM F2418-16a, "STANDARD SPECIFICATION FOR POLYPROPYLENE (PP) CORRUGATED WALL STORMWATER COLLECTION CHAMBERS" CHAMBER CLASSIFICATION _ w 45x76 DESIGNATION SS. w 2. MC3500 CHAMBERS SHALL BE DESIGNED IN ACCORDANCE WITH ASTM F2787 'STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS". o 3. THE SITE DESIGN ENGINEER IS RESPONSIBLE FOR ASSESSING THE BEARING RESISTANCE (ALLOWABLE BEARING CAPACITY) OF THE SUBGRADE SOILS AND THE DEPTH OF FOUNDATION STONE WITH CONSIDERATION FOR THE RANGE OF EXPECTED SOIL MOISTURE CONDITIONS. m 4. PERIMETER STONE MUST BE EXTENDED HORIZONTALLY TO THE EXCAVATION WALL FOR BOTH VERTICAL AND SLOPED EXCAVATION WALLS. 5. REQUIREMENTS FOR HANDLING AND INSTALLATION: i m • TO MAINTAIN THE WIDTH OF CHAMBERS DURING SHIPPING AND HANDLING, CHAMBERS SHALL HAVE INTEGRAL, INTERLOCKING STACKING LUGS. • TO ENSURE A SECURE JOINT DURING INSTALLATION AND BACKFILL, THE HEIGHT OF THE CHAMBER JOINT SHALL NOT BE LESS THAN 3. § z p • TO ENSURE THE INTEGRITY OF THE ARCH SHAPE DURING INSTALLATION, a) THE ARCH STIFFNESS CONSTANT AS DEFINED IN SECTION 6.2.8 OF ASTM F2418 SHALL BE GREATER THAN OR EQUAL TO 500 LBS/INAN. AND b) TO RESIST CHAMBER DEFORMATION DURING INSTALLATION AT ELEVATED TEMPERATURES (ABOVE 73° F / 23° C), CHAMBERS SHALL BE PRODUCED FROM REFLECTIVE GOLD OR YELLOW COLORS. SHEET 4 7 of *OR APPROVED EQUAL 200 E Market Street 2000 Pennsylvania Ave NW Ste 7000 Charlottesville, VA 22902 Washington, DC 20006 � 00090 • �0 0 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. • rbemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 9S0EFRn*tW mbmr 002-34-00-101 VMDO Project Number 1284 Bryan D. Cichocld Z lie. No. 53741 .Z/S�u ysn��*%ti Checked By B. CICHOCKI Designed By K. ROESER Drawn By K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 STORMTECH DETAILS C6m5 VAjx I) 0 VMDO Architects vmdo.com 434.296.5684 COVER PIPE CONNECTION TO END CAP WITH ADS GEOSYNTHETICS 601T NON -WOVEN GEOTEXTILE STORMTECH HIGHLY RECOMMENDS FLEXSTORM PURE INSERTS IN ANY UPSTREAM STRUCTURES WITH OPEN GRATES ELEVATED BYPASS MANIFOLD MC-3500 CHAMBER OPTIONAL INSPECTION PORT MC-3500 END CAP O f O 2 U) O X E t of Q H LU W W W N 0 Y w U o_ 5 9 o WLU J f W W ro yr u o 3 N U s O U j o w � 3 12" (300 mm) MIN INSERTION MANIFOLD STUB MANIFOLD HEADER aryIlI M M M 11� l M M M M 0 91 IddMU i SUMP DEPTH TBD BY g qmm)MC35001EPP24BC SITE DESIGN ENGINEER pRTMANHOLE a e [600 mm] MIN RECOMMENDED) o 24" (600 mm) HDPE ACCESS PIPE REQUIRED TWO LAYERS -'ADS GEOSYNTHETICS 315WTM WOVEN <` USE FACTORY PARTIAL CUT END CAP PART #: GEOTEXTILE BETWEEN FOUNDATION STONE AND CHAMBERS Sg g OR MC35001EPP24BW 8.25'(2.51 m) MIN WIDE CONTINUOUS FABRIC WITHOUT SEAMS MI 13 MC-3500 ISOLATOR ROW DETAIL INSPECTION & MAINTENANCE STEP 1) INSPECT ISOLATOR ROW FOR SEDIMENT A. INSPECTION PORTS (IF PRESENT) A.I. REMOVEIOPEN LID ON NYLOPLAST INLINE DRAIN A.2. REMOVE AND CLEAN FLEXSTORM FILTER IF INSTALLED A.3. USING A FLASHLIGHTAND STADIA ROD, MEASURE DEPTH OF SEDIMENT AND RECORD ON MAINTENANCE LOG AA LOWER A CAMERA INTO ISOLATOR ROW FOR VISUAL INSPECTION OF SEDIMENT LEVELS (OPTIONAL) A.5. IF SEDIMENT IS AT OR ABOVE 3" 80 mm PROCEED TO STEP 2. IF NOT PROCEED TO STEP 3. B. ALL ISOLATOR ROWS B.1. REMOVE COVER FROM STRUCTURE AT UPSTREAM END OF ISOLATOR ROW B.2. USING A FLASHLIGHT, INSPECT DOWN THE ISOLATOR ROW THROUGH OUTLET PIPE 1) MIRRORS ON POLES OR CAMERAS MAYBE USED TO AVOID A CONFINED SPACE ENTRY II) FOLLOW OSHA REGULATIONS FOR CONFINED SPACE ENTRY IF ENTERING MANHOLE B.3. IF SEDIMENT IS AT, ORABOVE, 3" (80 mm) PROCEED TO STEP 2. IF NOT, PROCEED TO STEP 3. STEP 2) CLEAN OUT ISOLATOR ROW USING THE JETVAC PROCESS A. A FIXED CULVERT CLEANING NOZZLE WITH REAR FACING SPREAD OF 45" (1.1 m) OR MORE IS PREFERRED B. APPLY MULTIPLE PASSES OF JETVAC UNTIL BACKFLUSH WATER IS CLEAN C. VACUUM STRUCTURE SUMP AS REQUIRED STEP 3) REPLACE ALL COVERS, GRATES, FILTERS, AND LIDS; RECORD OBSERVATIONS AND ACTIONS. STEP 4) INSPECT AND CLEAN BASINS AND MANHOLES UPSTREAM OF THE STORMTECH SYSTEM. NOTES 1. INSPECT EVERY 6 MONTHS DURING THE FIRST YEAR OF OPERATION. ADJUST THE INSPECTION INTERVAL BASED ON PREVIOUS OBSERVATIONS OF SEDIMENT ACCUMULATION AND HIGH WATER ELEVATIONS. 2. CONDUCT JETTING AND VACTORING ANNUALLY OR WHEN INSPECTION SHOWS THAT MAINTENANCE IS NECESSARY. CONCRETE COLLAR PAVEMENT - CONCRETE SLAB T 6" (150 mm) MIN THICKNESS STORMTECH CHAMBER I12" (300 mm) MIN WIDTH CONCRETE COLLAR NOT REQUIRED FOR UNPAVED APPLICATIONS 8" NYLOPLAST INSPECTION PORT BODY (PART# 270aAG41PK1T) OR TRAFFIC RATED BOX W/SOUD 1� oil 1 w LOCKING COVER SCHED 40 PVC g' o rnj{. �,0 4' (100 mm) 4" (100 mm) S s SCHED 40 PVC e g SCHED 40 PVC 1 COUPLING 4" (100 mm) T SCHED 40 PVC J % P g� n x J N (200 mm) j m p CORE 4.5" (114 mm) 0 x 0 HOLE IN CHAMBER w O !L (4.5" HOLE SAW REQ'D) rc ~ Oil aO J wz Z. v2 oz 0 ANY VALLEY LOCATION ZO ww NOTES: 1. INSPECTION PORTS MAYBE CONNECTED THROUGH ANY CHAMBER CONNECTION DETAIL P it CORRUGATION VALLEY. NTS 22 2. ALL SCHEDULE 40 FITTINGS TO BE SOLVENT CEMENTED (4" PVC NOT m PROVIDED BY ADS). § ff V PVC INSPECTION PORT DETAIL €� NTS SHEET 5 OF 7 STORMTECH MC -SERIES END CAP INSERTION DETAIL NITS rr STORMTECH END CAP 12" (300 mm) MIN INSERTION NOTE: MANIFOLD STUB MUST BE LAID HORIZONTAL FOR A PROPER FIT IN END CAP OPENING. UNDERDRAIN DETAIL NTS STORMTECH CHAMBER UTLET MANIFOLD FOUNDATION STONE BENEATH CHAMBERS ADS GEOSYNTHETICS 601T NON -WOVEN GEOTEXTILE STORMTECH END CAP FOUNDATION STONE BENEATH CHAMBERS ADS GEOSYNTHETICS 601T NON -WOVEN GEOTEXTILE - „� DESIGN ENGINEER 4' (100 mm) TYP FOR SC-310 & SG-160LP SYSTEMS 6" (150 mm) TYP FOR SC-740, DC-780, MC3500 & MC-4500 SYSTEMS 12" (300 mm) MIN SEPARATION MANIFOLD HEADER MANIFOLD STUB SECTION A -A DUAL WALL PERFORATED HDPE UNDERDRAIN SECTION B-B MC-3500 TECHNICAL SPECIFICATION NTS VALLEY 86.0"(2184 INSTALLED D STIFFENING RIB CREST NED CRESTI WEB STIFFENING RIB LOWER JOINT „" rT CORRUGATION FOOT UPPER JOINT CORRUGATION BUILD ROW IN THIS DIRECTION 77.0" 75.0" (1956 mm) (1905 mm) NOMINAL CHAMBER SPECIFICATIONS SIZE (W X H X INSTALLED LENGTH) 77.0" X 45.0" X 86.0" (1956 mm X 1143 mm X 2184 mm) CHAMBER STORAGE 109.9 CUBIC FEET (3.110) MINIMUM INSTALLED STORAGE* 175.0 CUBIC FEET (4.96 m") WEIGHT 134 lbs. (60.8 kg) NOMINAL END CAP SPECIFICATIONS SIZE (W X H X INSTALLED LENGTH) 75.0" X 45.0" X 22.2" (19D5 mm X 1143 mm X 564 mm) END CAP STORAGE 14.9 CUBIC FEET (0.42 m0 MINIMUM INSTALLED STORAGE* 45.1 CUBIC FEET (1.28 m3) WEIGHT 491bs. (22.2 kg) *ASSUMES 12" (305 mm) STONE ABOVE, 9" (229 mm) STONE FOUNDATION, 6" (152 mm) STONE BETWEEN CHAMBERS, 6" (152 mm) STONE PERIMETER IN FRONT OF END CAPS AND 40% STONE POROSITY. PARTIAL CUT HOLES AT BOTTOM OF END CAP FOR PART NUMBERS ENDING WITH "B" PARTIAL CUT HOLES AT TOP OF END CAP FOR PART NUMBERS ENDING WITH "T' END CAPS WITH A PREFABRICATED WELDED STUB END WITH "W" END CAPS WITH A WELDED CROWN PLATE END WITH "C" PART # STUB B C MC35001EPPOBT 6" (150 mm) 33.21" (844 mm) - MC35001EPPO6B - 0.88" (17 mm) MC35001EPP08T 8' (200 mm) 31.16" (791 mm) - MC35001EPP08B - 0.81" (21 mm) MC35001EPPIOT 10" (250 mm) 29.04" V38 mm) - MC35001EPP10B - 0.93(24 mm) MC35001EPP12T 12' (300 mm) 26.36" (670 mm) - MC35001EPP12B - 1.35" (34 mm) MC35001EPP15T 15' (375 mm) 23.39" (594 mm) - MC35001EPP156 - 1.50' (36 mm) MG35001EPP18TC 18' (450 mm) 20.03" (509 mm) - MC35001EPP18TW MC35001EPP18BC - 1.77" (45 mm) MC35001EPP18BW MC35001EPP24TC 24" (600 mm) 14.48" (388 mm) - MC35001EPP24TW MC35001EPP24BC - 2.06" (52 mm) MC35001EPP24BW MC35001EPP30BC 30' (750 mm) - 2.75" 170 mm) NOTE: ALL DIMENSIONS ARE NOMINAL CONVEYANCE PIPE MATERIAL MAY VARY (PVC, HDPE, ETC.) INSERTATEE CONNECTION (X) PLACE ADS GEOSYNTHETICS 315 WOVEN GEOTEXTILE (CENTERED ON INSERTA-TEE INLET) OVER BEDDING STONE FOR SCOUR PROTECTION AT SIDE INLET CONNECTIONS. GEOTEXTILE MUST EXTEND 6" (150 mm) PAST CHAMBER FOOT NOTE: PART NUMBERS WILL VARY BASED ON INLET PIPE MATERIALS. CONTACT STORMTECH FOR MORE INFORMATION. SECTION A -A 90.0" (2286 mm) ACTUALLENGTH 22.2" (564 mm) INSTALLED 'I (653 53 nn mm) I` CUSTOM PARTIAL CUT INVERTS ARE AVAILABLE UPON REQUEST. INVENTORIED MANIFOLDS INCLUDE 12-24" (30D-600 mm) SIZE ON SIZE AND 1548" (375-1200 mm) ECCENTRIC MANIFOLDS. CUSTOM INVERT LOCATIONS ON THE MC3500 END CAP CUT IN THE FIELD ARE NOT RECOMMENDED FOR PIPE SIZES GREATER THAN 10" (250 mm). THE INVERT LOCATION IN COLUMNS' ARE THE HIGHEST POSSIBLE FOR THE PIPE SIZE. DO NOT INSTALL INSERTA-TEE AT CHAMBER JOINTS INSERTA TEE TO BE INSTALLED, CENTERED OVER CORRUGATION SIDE VIEW CHAMBER MAX DIAMETER OF INSERTA TEE HEIGHT FROM BASE OF CHAMBER (X) SC-310 6" (150 mm) 4' (100 mm) SC-740 10" (250 mm) 4" (100 mm) DC-780 10" (250 mm) 4' (100 mm) MC3500 12" (300 mm) 6" (150 mm) MC-4500 12" (300 mm) 8" (2D0 mm) INSERTA TEE FITTINGS AVAILABLE FOR SDR 26, SDR 35, SCH 40 IPS GA SKETED & SOLVENT WELD, N-12. HP STORM, C-M OR DUCTILE IRON O O _ Q > Z W W N O O iL O W V W U - o S y o o 2 m o J L) LL1 3 a W ac o o a w w U o IL a w� .112 o Q a 29 Ai w� 0 _ 6 Sw 00 z.. �n o� oT J O� w0 Zp X 0 ~ OW 2J J wz 9 2w v2 oz y �o wi 9Z�. " 7 . SHEET 6 pF 7 J 0 > D_ Q Z W W N O W Y W 2 U a G a o xUti UU U W � ro yr o 3 a Uf # o N O oof U w o w 3 a w x J CID M O� w0 oP i C H Of zo w w� f0J v2 �w oz u 0 w� § +� fq nff zw SHEET 7 7 OF *OR APPROVED EQUAL 200 E Market Street 2000 Pennsylvania Ave NW Ste 7000 Charlottesville, VA 22902 Washington, DC 20006 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. • bemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 6il1�dEFRDjlttfVNlmit�r 002-34-00-101 VMDO Project Number 1284 Bryan D. Cichocld Z lie. No. 53741 O.y, 1Y' yS87� �`rSIOX Checked By B. CICHOCKI Designed By K. ROESER Drawn By K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 STORMTECH DETAILS C6.l VAJx I) C) VMDO Architects vmdo.com 434.296.5684 O. 0_ O. O. LO M C L O L = x '� ,'t u� L o C LO C ,�..� C ^ C r00 W uM7 ,..� O` _ O _ C 0) M C14 N o N M N N o LL7 O) W MO 0) C14 CS N O N N 0) u� O M p W O) L O O w 0) O (O N L u0 M (D 0 M O Q) 0) u') N a, if1 LL7 " q u) u0 F. O r- O M n O (D ^ w co 00 N CO O W (M (D V O) (O CD O O W) 00 O 07N a0 '� V �N 0'0 = } (DCD O H �M 0) 0) m��0) 0 000 0 01�(O '� N(00 M0iN (D cb o OO }o �Oj O�� u')H ��O Z_ 0 2000(D (D Z) M } 00� H MO} 0iH + + 0� H W ter- W 1n0 (n +0 oD (n 0co7 0_ 2�nZ Z N = 5ce)0 U) �00 0(pZ _ W �(DZ W CO�Q O I5�nZ g F0> o HOZ o aa> i� Qa0> ��z z F0>> > oQd j O NQaO aa> 0Qa> O o U�? o ml-_ o U)Oz o Lo U)OZ �UFz z z u6U) Z u��0z 0 U)Pz �U�Z Z 730 730 710 1 1 710 720 1 720 715 1 1 715 705 1 705 725 725 720 720 715 715 710 PRO G OSED E 710 705 705 700 7 505 .67' OF " HDPE 700 EXISTING GR 695 lkDE 1.2600 695 690 690 9+50 10+00 11+00 11+50 STR 504 - STR 506 STORMTECH DETENTION WITH ISOLATOR ROW - HORIZ SCALE: 1"=50' VERT SCALE: 1 "=5 705 705 700 700 695 695 PROPOSED GRADE 690 7 690 1' 685 IN. 685 680 680 EXISTING GRADE 501 35.90' DF 15" RCP 675 @ 2.7 % 675 670 1 670 9+50 10+00 11+00 STR 500 - STR 502 HORIZ SCALE: 1"=50' VERT SCALE: 1 "=5 STORMTECH DETENTION WITH ISOLATOR ROW 715 715 710 1 710 705 705 700 1 700 EXISTING GRADE PROPOSED GRADE 695 695 T MIN. 690 690 685 685 133 20.98' OF 18" HOPE @ 0.69% 680 680 STORMTECH DETENTION WITH ISOLATOR ROW 710 710 705 1 PROPOSED 705 GRADE EXISTING GRADE 700 700 1. ' MIN. 3' MIN. �- l 695 695 151 149 g .03' OF 147 172.49' OF 1 "HDPE 40.86 OF 15" HDPE 0.75% 690 5" HDPE 0 0.68% 690 APPROX. LOCATION OF EXISTING WATER 685 LINE. LOCATION AND 685 DEPTH TO BE FIELD VERIFIED PRIOR TO CONSTRUCTION. 680 680 675 1 1 675 9+50 10+00 10+50 9+50 10+00 UG DETENTION - STR 134 HORIZ SCALE: 1 "=50' VERT SCALE: 1 "=5 11+00 12+00 13+00 UG DETENTION - STR 152 0 2 M L) ca O O N o ov nlu;.- rn� 2 o O _ �_ M �_ �_ M �_ N F � .. V_ ov t0 N o O '� N O O M N v co M uY N a0 M vNo v, M ^ v,�oo n Mom Ono onrnrn N N 126:MH-1 a�v O co U M V M(OD N u')H �Q) n Mr o N if1 n r o OO('M 0 m O n u0 + W 0(nD ~���(n0 H ' �O(MO ~ Cl) LO(O(O O L N STA 10+02.44 T (� } (OF Q) L6 0 n (D } 00)� (/� o } (nD On =Oo D=000 ] = 0, 0�(00 Z 00 Z) TOP681.58 °)+oF Nu7 p�o0 W �(DZ_ 2 Z 0g�(DZ Z 0 g�(0Z_ 0 `oad» ioaa> a Eoo� INV IN677.63(107) N0<(L MF0> �UFZ 0�0> oF0»N�0>>> U�? �UFz z�UFz z z ���z z �U) INV IN677.63(127) o F0> INV OUT 677.53 (105) U 720 1 720 705 1 705 715 1 715 700 700 715 715 710 710 705 705 EXISTING GRADE 700 700 PROPOSED GRADE 695 1 695 690 T MI 690 685 685 680 680 J. -131 24.21' OF 12" HDPE @ 8.00% 700 700 695 695 EXISTING GRADE 690 690 3' MIN. PROPOSED L129 � 685 GRADE 685 54.73' OF 21" HDPE 680 11 I 101 105 @ 1.40% 680 45.98' OF 39.84' OF 675 675 21" HDP @ 0.50 /o @ 0.50% 1 7 6 .08' OF 2"' HDPE 1.00% 670 670 665 665 9+50 10+00 10+50 9+50 UG DETENTION - STR 132 HORIZ SCALE: 1 "=50' VERT SCALE: 1 "=5 -STORMTECH DETENTION WITH ISOLATOR ROW - STONE BASE AND UNDERDRAIN 10+00 11+00 12+00 12+50 STR 100 - UG DETENTION HORIZ SCALE: 1 "=50' VERT SCALE: 1 "=5 STORMTECH DETENTION WITH ISOLATOR ROW - 710 710 705 705 EXISTING GRADE PROPOSED 700 GRADE 700 695 695TIV 690 :4 IN. 690 PFL 145 27.69' O 12" HOPE 0 8.00% 685 685 680 680 675 675 9+50 10+00 11+00 UG DETENTION - STR 146 HORIZ SCALE: 1"=50' VERT SCALE: 1"=5 HORIZ SCALE: 1"=50' VERT SCALE: 1 "=5 695 695 690 690 EXISTING GRADE PROPOSED 685 GRADE 685 680 680 0 107 23.50, OF 675 12" HDPE 675 @ 1' 0 670 670 665 665 660 660 139A: 12" Nyloplast Basin - Solid Cover- STA 10+77.85 TOP 697.31 INV IN 689.39 (139B) INV OUT 689.29 (139) 138: 12" Nyloplast Basin - Pedestrian Grate STA 10+66.18 TOP 696.75 INV IN 689.17 (139) INV OUT 689.07 (137) 136: DI-3C 6 ft Throat STA 10+19.04 TOP 696.16 INV IN 688.48 (137) INV OUT 688.38 (135) 715 STORMTECH DETENTION WITH ISOLATOR ROW - 9+50 10+00 11+00 STR 126 - STR 106 PROFILE HORIZ SCALE: V=50' VERT SCALE: 1 "=5 EXISTING 700 GRADE 700 695 1 11 695 690 690 PROPOSED GRADE--] 685 685 2.3' 113 680 109 67. 1161 OF 680 12" HDPE 6 .49' OF @ 3.44% 12' HDPE 0.50% 675 675 670 670 665 665 STORMTECH DETENTION WITH ISOLATOR ROW STONE BASE AND UNDERDRAIN 14+00 9+50 10+00 11+00 12+00 STR 108 - UG DETENTION HORIZ SCALE: 1"=50' VERT SCALE: 1"=5 139C: 12" Nyloplast Basin - Solid Cover STA 10+97.65 TOP 697.56 INV IN 689.80 (139D) INV OUT 689.59 (139B) 140: 15" Nyloplast Basin - Solid Cover STA 11+28.57 TOP 692.75 INV IN 690.11 (143) INV IN 690.28 (141) INV OUT 690.11 (139D) 715 715 710 710 705 705 700 700 EXISTING GRADE PROPOSED GRADE 695 _ \ 695 690 690 - - 141 7 27.85' OF 8" HDPE @ 1.50% 685 135r 137 139B 685 19.80' OF 139D 18.43' OF 47.14' OF 15" HDPE 12" HDPE 12" HDPE 30.92' OF @ 1.28% @ 1.25% @ 1.00% 12" HDPE @ 1.00% 1391 680 11.67' O 680 12" HOPE @ 1.00"/ 675 1 675 - TRENCH DRAIN 9+50 10+00 11+00 12+00 UG DETENTION - PIPE 141 HORIZ SCALE: V=50' VERT SCALE: 1"=5 m 0 U a 0 U C Q co _M m N I V O O Lo N zono0o U�) C)OZZ0 O �0>> > U)P- 715 710 710 705 705 700 700 695 FPROPOSED GRADE 695 I690 143 27.98' OF 8" HDPE 685 @ 1.95% 685 EXISTING GRADE 680 680 675 675 0 50 PROFILE SCALE NCH DRAIN 9+50 10+00 11+00 STR 140 - PIPE 143 HORIZ SCALE: 1"=50' VERT SCALE: 1"=5 200 E Market Street 2000 Pennsylvania Ave NW Ste 7000 Charlottesville, VA 22902 Washington, DC 20006 �0••�� • 0 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. • rbemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 VDOE Project Number 002-34-00-101 VMDO Project Number 1284 Bryan D. Cichocki Z Lie. No. 53741 O.G) 1Y' W87� 1SSIONAL G Checked By B. CICHOCKI Designed By K. ROESER Drawn By K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC. 2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 STORM SEWER PROFILES C7n0 UNDERG DETENTIOI` 216: 18" Basin - Circular Grate 212: 18" Basin - Circular Grate 214: 18" Basin - Circular Grate m STA 12+68.62 STA 12+87.86 6 TOP 683.10 TOP 683.75 O O INV IN 678.05 (213) INV IN 679.96 (215) E E INV OUT 677.95 (211) INV OUT 678.24 (213) 0 0 0 210: 18" Basin - Circular Grate ch STA 12+30.28 m @ m CMM m M 206: MH-1 TOP 682.06 P v V M (�i m v P v STA 10+71.73 INV IN 677.66 (211) 220: 24" Nyloplast Basin - Dome Grate F 0) f0 O rn m O H to TOP 681.19 INV OUT 677.56 (209) 12 STA 13+66.81 ro r o 4 Cq 0 00) `'• o 00 N INV IN 676.67 (207) 208: 18" Basin - Circular Grate ^ N TOP 685.75 U � 0) 00 z ao o 0) oo O o ° T O M 0 Co a0 rn m INV OUT 676.57 (205) STA 11+85.32 U V V o INV IN 681.60 (219) M + F N + ri F = o CM I- o °+° of 236: ES-1 for 15 inch Pipe �? + rn 0°0] 204: ES-1 for 18 inch Pipe TOP 680.70 c N O O o '0 INV OUT 681.50 (217) p 00� o CO O oo� m O ��oZ _ O M 000� m O STA 10+04.64 (0 O STA 10+04.36 INV IN 677.34 (209) co ,n ,n N 0o m M o o (o 218: MH-1 6o Q o > O 0 Q d > O M O > > v Q o > TOP 686.56 ad Q ° > N TOP 677.90 INV IN 677.34 (223) 00 + ui 00 00 STA 14+08.23 z (h rn ~ - O z ~ - (� v7 H ? ? N � ? INV IN 685.19 237 ( ) INV IN 676.23 205 ( ) INV OUT 677.24 (207) co Z Z TOP 688.10 F a- > > INV IN 683.04 (EX 229) CM rn P- ? ? ? INV OUT 682.94 (219) 705 705 715 715 715 715 715 715 700 700 700 700 695 695 690 690 685 685 ROUND SWIM 2 680 680 675 315 12.18' OF 15" HOPE @ 8.48% 675 670 670 665 665 9+50 10+00 11+00 PIPE 315 - STR 316 HORIZ SCALE: 1"=50' VERT SCALE: 1 "=5 STA 13+09.62 TOP 685.32 222: 12" Basin - Circular Grate INV IN 680.50 (217) STA 10+17.81 INV IN 680.50 (221) TOP 685.54 INV OUT 680.40 (215) INV OUT 680.91 (221) 710 710 705 705 700 700 695 695 690 690 PROPOSEIE GRAD EXISTING GRADE 685 685 3' MIN. / 680 680 221 13.78' F 12" HOPE @ 3.00 675 675 670 670 9+50 10+00 11+00 STR 216 - STR 222 HORIZ SCALE: 1"=50' VERT SCALE: 1"=5 710 710 705 705 700 700 EXISTING GRADE PR POSED GRADE 695 695 i 690 690 58.86 OF 6. DIP @ 1.00% 685 685 680 680 675 675 9+50 10+00 11+00 STR OD1 - PIPE 231 PROFILE HORIZ SCALE: 1 "=50' VERT SCALE: 1 "=5 208: 18" Basin - Circular Grate STA 10+01.61 TOP 680.70 INV IN 677.34 (209) INV IN 677.34 (223) INV OUT 677.24 (207) 710 1 224: 12" Basin - Circular Grate STA 10+48.53 TOP 690.23 INV OUT 681.09 (223) 710 720 705 705 700 700 695 695 PROPOSED GRADE 690 690 EXISTING GRADE 685 685 680 680 ,yti�pQ 9 A6 Z > �00 Oo�o 675 675 670 670 9+50 10+00 11+00 STR 208 - STR 224 HORIZ SCALE: 1 "=50' VERT SCALE: 1 "=5 710 710 705 705 700 700 ROPO' RADE EXISTING 695 GRADE 695 690 iF, 690 685 685 680 233 680 89.73' OF 15" HOPE APPROXIMATE LOCATION @ 0.90% OF PROPOSE GEOTHERMA WELL PIPES 675 675 9+50 10+00 11+00 STR 232 - STR 234 HORIZ SCALE: 1"=50' VERT SCALE: 1"=5 co 0)M L �n Vi v r_ r _ N F O Cl)Orn N O M �omcoa0 MCOLq, +00 01 H cM ((00 + 0)F �,�Z Z 0 O�O0 CFO >> 0 ICOFZZZ �U)FZ 720 715 715 710 710 705 705 PROPOSED GRADE 700 EXISTING GRADE 700 695 1 695 690 153 61.33' OF 12" HDPE @ 0.75% 690 685 685 680 1 680 9+50 10+00 11+00 STR 148 - STR 154 HORIZ SCALE: 1 "=50' VERT SCALE: 1 "=5 710 710 705 705 700 700 695 695 690 PROPOSED GRADE (STING RADE 690 685 685 680 23 4.04' OF 5" HOPE 0.50% 680 675 675 11+50 9+50 10+00 11+00 STR 236 - STR 238 HORIZ SCALE: 1 "=50' VERT SCALE: 1"=5 404: MH-1 STA 10+36.21 TOP 697.97 INV IN 691.92 (EX 405) INV OUT 691.87 (EX 403) 402: DI-31B 6 ft Throat STA 10+00.00 TOP 698.38 INV IN 691.42 (EX 403) INV OUT 691.62 (EX 401) 715 406: DI-3C 6 ft Throat STA 10+50.67 TOP 697.86 INV IN 692.04 (EX 407) INV OUT 692.04 (EX 405) EX 408 STA 10+88.69 TOP 696.02 INV OUT 692.37 (EX 407) 715 710 710 705 705 EXISTING GRADE PROPOSED GRADE 700 700 695 695 �u 690 690 EX 403 EX 407 36.21' OF EX 405 38.02' O 15" RCP 14OF 15" RCP @ 1.24% 15"RCP @ 0.87° 685 @ @.83 /° 685 680 680 675 675 9+50 10+00 11+00 11+50 STR 402 - EX STR 408 PROFILE HORIZ SCALE: 1 "=50' VERT SCALE: 1 "=5 695 695 690 690 PROPOSE 685 GRADE 685 EXISTING GRADE 1 � - - - - - J L 680 \ 219 680 41.43' OF 217 15" HOPE 215 57.11T OF @ 3.23% 21.76' OF 15" HOPE 207 15" HOPE @ 1.75% 675 113.61' OF 4 9890E @ 2.00% 675 18" HOPE cc 0.50°k @ 0.50% 211 EXISTING 8" 38.35' OF SANITARY SEWER. 18" HOPE 670 @ 0.75% 213 670 19.24' OF 18" HOPE @ 1.00% 665 665 660 -6130 0 P 9+50 10+00 11+00 12+00 13+00 STR 204 - STR 218 PROFILE HORIZ SCALE: 1"=50' VERT SCALE: 1 "=5 304: 15" Basin - Solid Cover- STA 10+57.87 TOP 679.78 INV IN 675.85 (305) INV OUT 675.85 (303) 302: ES-1 for 15 inch Pipe STA 10+11.96 TOP 676.59 INV IN 675.22 (303) 705 0 � O co i M �f1 u6 0 0 co 6 ((00 n O+(0Z 0 - O O�P-z z U) 50 OFILE SCALE 14+00 14+50 5 310: 24" Nyloplast Basin - Dome Grate STA 12+22.67 TOP 684.00 rn con INV IN 679.32 (311) v oo INV OUT 679.22 (309) =v U , 0 0 n o 6 rn 06 (0 312: 12" Basin - Circular Grate O , 00 m � STA 12+43.94 - (O Z O TOP 686.51 O > > D INV IN 679.82 (313) e) U) ~ - - INV OUT 679.72 (311) 705 700 700 695 695 690 690 PROPOSED RADE / 685 685 WEIR PLA UNDERGROL GRADE DETENTION; [EXISTING / (0.2% SLOPE 680 680 000 313 24.57' F 15" HOPE @ 0.75 675 305 4" SOLID 675 42.99'OF HDPE WITH 311 15" HDPE INSERTA TEE 88 28' OF 309 21 27, O @ 1 40 k CONNECTION 15" HOPE 33.53' O 15 OPE @ 1.73% 15" HOP H @ 190% @ 3.40° 670 670 30 45.93' O 15" HDP EXISTING 8" @ 1 38o SANITARY SEWER 665 665 9+50 10+00 11+00 12+00 STR 302 - STR 310 HORIZ SCALE: V=50' VERT SCALE: 1 "=5 TE ND iWM 2 1 13+00 13+50 VAJx I) C) VMDO Architects vmdo.com 434.296.5684 200 E Market Street 2000 Pennsylvania Ave NW Ste 7000 Charlottesville, VA 22902 Washington, DC 20006 � 00090 s �0 0 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. • bemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 VDOE Project Number 002-34-00-101 VMDO Project Number 1284 Bryan D. Cichocld Z lie. No. 53741 " 2/S�Zf O.y, 1Y' yS87.� �SSIONALG Checked By B. CICHOCKI Designed By K. ROESER Drawn By K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 STORM SEWER PROFILES C7ml ROUTE PROJECT CROZET ES DESIGNER: A. BARNES CHECKED: DATE 121212020 UNITS:NGLISH INLET rn a a 5 O 6 u� U u O .n _ v r t. i a m N O E 5 pg Sag Inlets Only m 5 ri f✓ -p� a� q v i 132 DI-3C 6.000 0.190 0.89 0.169 Back/Lt. 0.000'RIGHT 0.169 4 0.676 0 0.001 0.0370 5.704 2.000 0.351 0.0833 2.251 3.11 Bwk/Lt. 0 4 0 0 Ahead/Rt. 0.676 0.001 6 0.676 1.173 0.296 0.333 0.8889 3.173 2.642 Weir Flow 136 DI-3C 6.000 0.240 0.80 0.192 Bwk/Lt. 0.000RIGHT 0.192 4 0.768 0 0.001 0.0330 6.447 2.000 0.31 0.0833 2.524 3.21 Bwk/Lt. 0 4 0 0 Ahead/Rt. 0.768 0.001 6 0.768 1 1 1.277 0.264 0.333 0.7928 3.277 3.225 Weir Flow 138 DI-1 1.000 0.010 0.90 0.009 Bwk/Lt. 0.000'RIGHT 0.009 4 0.036 0 0.0010 0.0208 3.050 2.000 0.656 0.0208 l 2.00 Bwk/Lt. 0 4 0 0 Ahead/Rt. 0.036 0.0010 1.000 1 0.036 0.532 0.166 1 2.532 2.132 Weir Flow 146 DI-3B 8.000 0.170 0.83 0.141 O'RIGIIT 0.141 4 0.564 0 0.564 0.0360 0.0270 1.834 2.000 1.091 0.0833 3.085 1.000 3.35 0.1396 0.1666 6.337 8.000 1.262 1.000 0.564 0.000 1.834 150 DI-3B 4.000 0.230 0.69 0.159 Bwk/Lt. 0.000RIGIrr 0.159 4 0.636 0 0.0180 0.0300 2.508 2.000 0.797 0.0833 2.777 3.28 Bwk/Lt. 0 4 0 0 Ahead/Rt. 0.636 0.0180 4 0.636 1.316 0.240 0.333 0.7207 3.316 3.656 Weir Flow 152 DI-3B 6.000 0.070 0.84 0.059 WRIGHT 0.059 4 0.236 0 0.236 0.0350 0.0208 1.331 12.000 1 1.503 10.0833 4.005 1.000 3.50 0.1458 0.1666 4.358 6.000 1.377 1.000 0.236 0.000 1.330 154 DI-3B 4.000 0.050 0.90 0.045 WRIGHT 0.045 4 0.18 0 0.180 0.0200 0.0200 1.335 2.000 1.498 0.0833 4.165 1.000 3.52 0.1466 0.1666 3.288 4.000 1.217 1.000 0.180 0.000 1.335 208 DI-1 1.500 0.150 0.38 0.057 Bwk/Lt. 0.000'RIGHT 0.057 4 0.228 0 0.0162 0.0704 1.517 2.000 1.318 0.0833 1.183 2.31 Bwk/Lt. 0 4 0 0 Ahead/Rt. 0.228 0.0162 1.500 1.5 0.228 1.390 0.563 4.889 1.645 Weir Flow 210 DI-1 1.500 0.050 0.40 0.02 Bwk/Lt. 0.000'RIGHT 0.02 4 0.08 0 0.001 0.0208 1.727 2.000 1.158 0.0833 4.005 3.50 Bwk/Lt. 0 4 0 0 Ahead/Rt. 0.080 0.001 1.500 1.5 0.080 0.691 0.166 4.191 2.770 Weir Flow 212 DI-1 1.500 0.025 0.90 0.023 Bwk/Lt. 0.000'RIGII 0.009 0.35 0.003 Bwk/Lt. 0.026 4 0.104 0 Bwk/Lt. 0 4 0 0 Ahead/Rt. 0.104 0.001 1.500 1.5 0.104 0.721 T> 8.0It 214 DI-1 1.500 0.020 0.35 0.007 Bwk/Lt. 0.000'RIGHT 0.007 4 0.028 0 0.001 0.0208 1.165 2.000 1.717 0.0833 4.005 3.50 Bwk/Lt. 0 4 0 0 Ahead/Rt. 0.028 0.001 1.500 1.5 0.028 0.343 0.166 3.843 1.376 Weir Flow 216 DI-1 1.500 0.020 0.90 0.018 Bwk/Lt. 0.000'RIGE 0.050 0.35 0.018 Bwk/Lt. 0.036 4 0.144 0 0.0079 0.0779 1.461 2.000 1.369 0.0833 1.069 2.13 Bwk/Lt. 0 4 1 0 1 0 Ahead/Rt. 0.144 0.0079 1.500 1.5 0.144 1.023 0.623 4.523 1.095 Weir Flow 222 DI-1 1.000 0.010 0.90 0.009 Bwk/Lt. 0.000'RIGII 0.050 0.35 0.018 Bwk/Lt. 0.027 4 0.108 0 Bwk/Lt. 0 4 0 0 Ahead/Rt. 0.108 0.0100 1.000 1 0.108 0.968 T> 8.0It 224 DI-1 1.000 0.030 0.59 0.018 Bwk/Lt. 0.000'RIGHT 0.018 4 0.072 0 Bwk/Ut. 0 4 0 0 Ahead/Rt. 0.072 0.0100 1.000 1 0.072 0.739 T> 8.0It 234 DI-1 2.500 3.420 0.45 1.539 Bwk/Lt. 0.000RIGI-rr 1.539 4 6.156 0 Bwk/Lt. 0 1 4 0 1 0 Ahead/Rt. 6.156 0.0100 2.500 2.5 6.156 11.605 T> 8.0It 238 DI-3B 8.000 0.290 0.88 0.255 WRIGHT 0.255 4 1.02 0 1.020 0.0330 0.0270 2.984 2.000 0.67 0.0833 3.085 0.985 3.35 0.1396 0.1645 7.979 8.000 1.003 1.000 1.020 0.000 2.318 316 DI-3C 6.000 0.540 0.80 0.432 Bwk/Lt. 0.000'RIGHT 0.432 4 1.728 0 0.0340 0.0290 4.182 2.000 0.478 0.0833 2.872 3.30 Bwk/Lt. 0 4 0 0 Ahead/Rt. 1.728 0.0340 6 1.728 2.194 0.232 0.333 0.6967 4.194 6.304 Weir Flow 402 DI-3B 6.000 0.247 0.90 0.222 Bwk/Lt. 0.000RIG 0.070 0.35 0.025 Back/Lt. 0.247 4 0.988 0 0.0270 0.0160 3.892 2.000 0.514 0.0833 5.206 3.62 Bwk/Lt. 0 4 0 0 Ahead/Rt. 0.988 0.0270 6 0.988 1.511 0.128 0.333 0.3844 3.511 7.869 Weir Flow 406 DI-3C 6.000 0.510 0.74 0.377 Bwk/Lt. 0.000'RIGHT 0.377 4 1.508 0 0.0240 0.0240 4.697 2,000 0.426 0.0833 3.471 3.42 Bwk/Lt. 0 4 0 0 Ahead/Rt. 1.508 0.0240 1 16 1.508 2.003 10.192 0.333 0.5766 1 4.003 6.956 Weir Flow EX DI-1 1.000 0.060 0.35 0.021 Bwk/Lt. 0.000RIGfrr 0.021 4 0.084 0 Bwk/Lt. 0 4 0 0 tO.741 Ahead/Rt. 0.084 0.0100 1.000 1 0.084 T> 8.0It EX400 DI-3B 6.000 0.240 0.90 0.216 Bwk/Lt. 0.000'RIGII 0.080 0.35 0.028 Bwk/Lt. 0.244 4 0.976 0 0.0270 0.0330 2.929 2.000 0.683 0.0833 2.524 3.21 1Bwk/Lt. 0 4 0 0 Ahead/Rt. 0.976 0.0270 6 0.976 1.499 0.264 0.333 0.7928 r 3.499 3.784 Weir Flow EX408 DI-3C 6.000 0.120 0.75 1 0.09 Bwk/Lt. 0.000'RIGHT 0.09 1 4 1 0.36 0 0.0490 0.0218 1.464 2.000 1.366 0.0833 3.821 3.48 Bwk/Lt. 0 1 4 1 0 1 0 Abead/Rt. 0.360 0.0490 6 0.360 0.771 0.174 0.333 0.5225 2.771 2.945 Weir Flow Crossing - Crossing 1, Design Discharge - 4.2 cfs Culvert - Culvert 501, Culvert Discharge - 4.2 cfs 686-0 685-5 685-0 m 684-5- UJ 684-0 _ 683.5 683.0 0 10 20 30 40 Station (ft) Discharge Total Discharge Culverl Discharge Headwater Elevation Inlet Control Outlet Control Flmv Normal Critical ONler Tailwater Outlet Velocity Tailwater Velocity Names (cfs) (cfs) ut) Depth(fo Depth (ft) TypeDepth (ft) Depth (ft) Depth(d) Depth(ft) Mist (Ns) 10-YR 3.68 3.68 685.02 1,173 0.0' 1-S2n 0.458 0.775 0.486 0.597 8.348 3.444 25-YR 4.16 4.16 685.13 1280 0.082 5-S2n 0.489 0.826 a522 0.625 8.563 3.551 CULVERT 501 No Scale Culvert Calculations C Area Impervious Pervious C*A I10yr 125 yr Q10yr Q25yr 505 0.44 0.05 0.01 0.04 0.022 6.47 7.31 0.15 0.16 Ex Culvert 0.53 0.36 0.14 0.23 0.191 6.47 7.31 1.24 1.40 501 0.58 0.97 0.46 0.51 0.569 6.47 7.31 3.68 4.16 Crossing - Crossing 2, Design Discharge - 0.2 cfs Culvert - Culvert 505, Culvert Discharge - 0.2 cfs 706.5 706-0 705.5 705-0 c -- 704-5 aiUi 704-0 703.5 703.0 702.5 -10 0 10 20 30 40 50 60 70 Station (ft) Discharge Total Discharge Covert Discharge Headwater Elevation Inlet Control Outlet Contrd Flow Normal Critical Gullet Teilweler Outlet Velocity Tailwater Velocity Names (cis) (cfs) (ft) Depth (fry Depth (ft) Type Depth (ft) Depth (ft) spat (ti) Depth (ft) (Ns) rtfs) loyr 0.15 0.15 703.00 0200 D.0^ 1-JSit 0.117 0.149 0.2" 1.065 1.081 25 yr 0.16 D.16 703.41 0207 0.0' 1-JSit 0.121 0.154 0.220 N. N. 1.097 1.099 CULVERT 505 No Scale Crossing - Existing Culvert, Design Discharge - 1.4 cfs Culvert - Existing Culvert, Culvert Discharge - 1.4 cfs 701 700 i 699 c cu 698 au Lu 697 696 695 -20 0 20 40 60 80 100 120 140 Station (ft) Discharge Total Cavan Headwater Inlet Outlet Flow Normal Critical Outlet Tailwater Outlet Tallwater Names Discharge Discharge Elevation Control Control Type Depth (ft) Depth (ft) Depth (h) Depth (ft) Velocity Velocity (�) (�) (ft) Depth (ft) Depth (ft) (�) (Ns) 10 yr 1.24 1.24 698.69 0638 0.0' 1-S2n 0,430 0.439 a430 0.475 3,312 1.834 25 yr 1.40 1.40 698.73 0.684 0.0' 1-S2n 0.459 0.468 a459 0.497 3.424 1.890 EXISTING CULVERT No Scale LD-229 STORM SEWER DESIGN COMPUTATIONS STORM FREQUENCY 10 PROJECT: CROZET ES Designed by: LOCATION: ALBEMARLE COUNTY COUNTY: Free Union Checked by: UNITS ENGLISH PIPE NO. FROMPOINT TOPOINT DRAIN. AREA "A" Acre (3) RUNOFF COEFF. "C" (4) CA INLET TIME Minutes (7) RAIN FALL IWHr (8) RUNOFF INVERT ELEVATION5 LENGTH of Pipe FL (12) SLOPE FOR. (13) SIZE (Dia.. Or Span/Rse) In (14) SHAPE Number of Pipes Capacity CFS (15) Frictim Slope FOR. NORMAL FLOW FLOW TIME INCRE-ACCU_M- MENT (5) ULATED (6) Lateral CFS TotalQ CFS (9) UPPER END (10) LOWER END (11) Dep[b of Flow, do F[. Area of Flow, An SqF[ Hurt Ft. Vn Ft/Sec (16) En Ft. INCRE- MENT Minutes (17) ACCUMU -LATED Minutes (17) REFERENCE (1) STA. REFERENCE (2) STA. 101 102 100 0.00 0.00 0.00 5.45 5.76 0.00 2.99 677.23 677.00 45.98 0.00500 21 Circular 1 12.14 0.00030 0.59 0.72 0.33 4.18 0.86 0.18 5.64 105 126 102 0.00 0.00 0.00 5.29 5.80 0.00 2.99 677.53 677.33 39.84 0.005021 21 Circular 1 12.16 0.00030 0.59 0.72 0.33 4.18 0.86 0.16 5.45 107 1106 126 0.00 0.00 0.00 5.00 0.00 1 0.93 1 678.00 677.63 23.50 0.01574 12 Circular 1 4.84 0.00060 0.30 0.20 0.17 4.76 1 0.65 1 0.08 5.08 109 110 1108 0.00 0.00 0.00 5.17 5.84 0.00 1.27 680.84 680.50 68.49 0.00496 12 Circular 1 2.72 0.00110 0.48 0.37 0.24 3.40 0.66 0.34 5.50 113 swm#i,ot 110 0.00 0.00 0.00 5.00 0.00 1.27 684.50 682.79 57.15 0.02992 12 Circular 1 6.68 0.00110 0.30 0.19 0.17 6.55 0.96 0.15 5.15 115 116 114 0.00 0.00 0.19 5.67 5.70 0.00 3.48 678.33 678.25 10.04 0.00797 15 Circular 1 6.25 0.00260 0.67 0.67 0.33 5.23 1.09 0.03 5.70 117 118 116 0.00 0.00 0.09 5.01 5.88 0.00 0.56 678.74 678.43 61.50 0.00504 8 Circular 1 0.93 0.00190 0.37 0.20 0.18 2.79 0.49 0.37 5.38 119 ROOF A 118 0.11 0.90 0.09 0.09 5.00 4.93 0.00 0.56 678.84 678.74 4.00 0.02500 8 Circular 1 2.07 0.00190 0.24 0.11 0.13 5.03 0.63 0.01 5.01 121 122 116 0.00 0.00 0.09 5.39 4.83 0.00 2.94 678.79 678.43 71.50 0.00503 15 Circular 1 4.96 0.00180 0.69 0.70 0.33 4.22 0.97 0.28 5.67 123 ROOF B 1122 0.11 0.90 0.09 0.09 1 5.00 5.89 1 0.00 0.56 678.91 678.89 4.00 0.00500 8 Circular 1 0.93 0.00190 0.37 1 0.20 0.18 2.78 0.49 0.02 5.02 125 126 122 0.00 0.00 0.00 5.00 0.00 0.00 2.50 681.10 678.89 53.22 0.04153 12 Circe 1 7.87 0.00440 0.39 0.28 0.21 8.90 1.62 0.10 5.10 127 128 126 0.00 0.00 0.00 5.08 5.86 0.00 2.99 678.32 677.63 69.08 0.00999 21 Circular 1 17.16 0.00030 0.49 0.56 0.29 5.36 0.94 0.22 5.29 129 sWM #1' Ot 128 0.00 0.00 0.00 5.00 0.00 0.00 2.99 684.50 683.98 54.73 0.00950 21 Circular 1 16.73 0.00030 0.50 0.57 0.29 5.26 0.93 0.17 5.17 131 132 SWM # 1, IN 0.19 0.89 0.17 0.17 5.00 5.89 0.00 1.00 690.70 688.76 24.21 0.08013 12 Circular 1 10.93 0.00070 0.20 0.12 0.12 8.66 1.37 0.05 5.05 133 1134 SWM # 1, IN 0.00 0.00 0.80 6.31 5.53 0.00 6.39 686.71 686.57 17.59 0.00796 18 Circular 1 10.15 0.00330 0.86 1.05 0.41 6.07 1 1.44 0.05 6.35 135 136 SWM # 1, IN 0.26 0.85 0.22 0.23 5.43 5.76 0.00 3.26 688.38 688.14 18.89 0.01271 12 Circular 1 4.35 0.00740 0.65 0.54 0.29 6.08 1.22 0.05 5.48 137 138 136 0.23 0.90 0.21 0.39 5.23 5.82 0.00 3.14 689.07 688.48 47.14 0.01252 12 Circular 1 4.32 0.00690 0.63 0.52 0.29 6.00 1.19 0.13 5.36 139 138A 1138 1 0.00 1 0.00 1 0.18 5.19 1 5.83 0.00 1 1.93 1 689.29 689.17 11.67 0.01028 12 Circular 1 1 3.91 1 0.00260 0.50 0.39 0.25 4.97 0.88 1 0.04 5.23 139A 139B 138A 0.00 0.00 0.18 5.12 8.59 0.00 1.93 689.59 689.36 19.80 0.01162 12 Circular 1 4.16 0.00260 0.48 0.37 0.24 5.20 0.90 0.06 5.19 139B TD 139B 0.26 0.90 0.23 0.23 5.00 5.89 0.00 1.38 690.11 689.80 30.92 0.01003 12 Circular 1 3.87 0.00130 0.41 0.31 0.22 4.51 0.73 0.11 5.11 145 146 SWM # 1, IN 0.22 0.85 0.19 0.19 5.00 5.89 0.00 1.10 690.98 688.76 27.69 0.08017 12 Circular 1 10.93 0.00080 0.21 0.12 0.13 8.92 1.45 0.05 5.05 147 148 SWM#1,IN 0.00 0.00 0.24 6.03 5.60 0.00 1.41 692.92 689.15 108.31 0.03481 15 Circular 1 13.06 0.00040 0.28 0.20 0.17 6.95 1.03 0.26 6.29 149 150 148 0.21 0.80 0.17 0.23 5.24 5.82 0.00 1.32 694.19 693.02 172.49 0.00678 15 Circular 1 5.76 0.00040 0.41 0.35 0.23 3.81 0.63 0.75 5.99 151 152 150 0.07 0.84 0.06 0.06 5.00 5.89 0.00 0.35 695.00 684.29 94.03 0.11390 15 Circe 1 23.62 0.00000 0.11 0.05 0.07 6.95 0.86 0.23 5.23 153 154 1148 0.02 0.90 0.01 0.01 5.00 5.89 0.00 0.09 695.36 694.90 61.33 0.00750 12 Circular 1 3.34 0.00000 0.11 0.05 0.07 1.83 0.16 0.56 5.56 205 206 204 0.00 0.00 0.16 6.02 5.60 0.00 7.44 676.57 676.23 67.37 0.00505 18 Circular 1 8.09 0.00450 1.13 1.43 0.45 5.19 1.55 0.22 6.24 207 208 206 0.20 0.38 0.08 0.16 5.66 5.70 0.00 7.44 677.24 676.67 113.61 0.00502 18 Circular 1 8.06 0.00450 1.14 1.44 0.45 5.18 1.55 0.37 6.02 209 210 208 0.05 0.40 0.02 0.08 5.41 5.77 0.00 6.91 677.56 677.34 44.98 0.00489 18 Circular 1 7.96 0.00380 1.08 1.36 0.45 5.07 1.48 0.15 5.56 211 212 210 0.03 0.77 0.03 0.06 5.15 5.84 0.00 6.80 677.95 677.66 38.35 0.00756 18 Circular 1 9.89 0.00370 0.91 1.13 0.42 6.03 1.48 0.11 5.25 213 214 212 0.09 0.41 0.04 1.40 10.66 4.63 0.00 6.65 678.24 678.05 19.24 0.00988 18 Circular 1 11.31 0.00360 0.83 1D0 0.40 6.66 1.52 0.05 10.71 215 216 214 0.07 0.51 0.04 1.40 10.62 4.63 0.00 6.47 680.40 679.96 21.76 0.02022 15 Circular 1 9.95 0.00890 0.73 0.75 0.34 8.64 1.89 0.04 10.66 217 BI03 216 0.00 0.00 0.00 5.00 0.00 0.00 1.73 681.50 680.50 57.17 0.01749 15 Circular 1 9.26 0.00060 0.37 0.30 0.21 5.78 0.89 0.17 5.17 219 218 BI03 0.00 0.00 1.34 10.43 4.67 0.00 6.34 682.94 681.60 41.43 0.03234 15 Circe 1 12.59 0.00860 0.63 0.62 0.31 10.27 2.27 0.07 10.50 221 222 216 0.32 0.90 0.29 0.29 5.00 5.89 0.00 1.70 680.91 680.50 13.78 0.02975 12 Circular 1 6.66 0.00200 0.34 0.24 0.19 7.08 1.12 0.03 5.03 223 224 208 0.40 0.75 0.30 0.30 5.00 5.89 0.00 1.76 681.09 677.34 46.92 0.07992 12 Circular 1 10.91 0.00220 0.27 0.17 0.16 10.21 1.89 0.08 5.08 233 234 232 3.82 035 1.34 1.34 10.00 4.74 0.00 6.34 685.20 684.39 89.73 0.00903 15 Circular 1 6.65 0.00860 0.98 1.03 0.38 E17 1.57 0.24 10.24 237 238 236 0.28 0.88 0.25 0.25 5.00 5.89 0.00 1.45 685.26 685.19 14.04 0.00499 15 Circular 1 4.94 0.00040 0.46 0.41 0.25 3.50 0.65 0.07 5.07 303 304 302 0.00 0.00 0.00 5.63 5.71 0.00 5.78 675.85 675.22 45.93 0.01372 15 Circular 1 8.20 0.00710 0.77 0.80 0.35 7.24 1.59 0.11 5.74 305 306 304 0.00 0.00 0.00 5.46 5.75 0.00 5.78 676.45 675.85 42.99 0.01396 15 Circular 1 8.27 0.00710 0.77 0.79 0.35 7.29 1.60 0.10 5.56 307 308 306 0.00 0.00 0.00 5.22 5.82 0.00 5.78 677.98 676.45 88.28 0.01733 15 Circular 1 9.21 0.00710 0.72 0.73 0.34 7.93 1.69 0.19 5.41 309 310 308 0.00 0.00 0.00 5.00 0.00 0.00 5.78 679.22 678.08 33.53 0.03400 15 Circular 1 12.90 0.00710 0.59 0.57 0.30 10.23 2.21 0.06 5.06 311 312 310 0.00 0.00 0.00 5.09 5.86 0.00 4.26 679.72 679.32 21.27 0.01881 15 Circular 1 9.60 0.00390 0.58 0.56 0.30 7.59 1.48 0.05 5.14 313 SWM#2, OU 312 0.00 0.00 0.00 5.00 0.00 4.26 680.00 679.82 24.57 0.00733 15 Circular 1 5.99 0.00390 0.78 0.80 0.35 5.30 1.22 0.08 5.08 315 316 SWM#2, IN 0.54 0.78 0.42 0.42 5.00 5.89 0.00 2.48 683.29 682.26 1118 0.08456 15 Circular 1 20.35 0.00130 0.30 0.22 0.17 11.24 2.26 0.02 5.02 EX 15" EX400 134 0.32 0.76 0.24 0.80 6.25 5.54 0.00 6.39 687.35 686.98 19.19 0.01928 15 Circular 1 8.97 0.01020 0.78 0.80 0.35 7.94 1.76 0.04 6.29 EX 229 EX230 218 0.00 0.00 1.34 1034 4.68 0.00 6.34 683.52 683.04 35.62 0.01348 15 Circe 1 7.50 0.01010 0.88 0.93 0.37 E86 1.61 0.09 10.43 EX231 232 EX230 0.00 0.00 1.34 10.22 4.70 0.00 6.34 684.39 683.88 51.06 0.00999 15 Circular 1 6.46 0.01010 1.01 1.06 0.38 6.00 1.56 0.14 10.36 EX401 402 EX400 0.32 0.78 0.25 0.55 5.36 5.78 0.00 5.03 691.62 688.53 309.75 0.00998 15 Circular 1 6.45 0.00630 0.83 0.87 0.36 5.82 1.36 0.89 6.25 EX403 404 402 0.00 0.00 0.31 5.23 5.82 0.00 3.61 691.87 691.42 36.21 0.01243 15 Circular 1 7.20 0.00330 0.63 0.61 0,31 5.87 Ll6 0.10 5.34 EX405 406 404 0.49 0.75 0.37 0.62 5.18 5.83 0.00 3.61 692.04 691.92 14.46 0.00830 15 Circular 1 5.89 0.00330 0.71 0.72 1 0.34 5.04 1.10 0.05 5.22 EX 407 EX 408 406 0.15 0.83 0.13 0.13 5.00 5.89 0.00 0.74 692.37 692.04 38.02 0.00868 15 Circular 1 6.02 0.00010 0.30 0.22 1 0.17 3.33 0.47 0.19 S.19 LD-347 HYDRAULIC GRADE LINE ANALYSIS INCIDENCE PROBABILITY 10 Year PROJECT: CROZET ES DESIGNED BY- Checked - INLET STA. OR JUNC71ON INVERT EL OUTFLOW PIPE DEPTH OF FLOW OUTFLOW PIPE OUTLET WATER SURFACE ELEV. DIA. PIPE Do (INmm) DESIGN DISCH. Qo (CFS/CMS) LENGTH PIPE to (Ft/M) FRICTION SLOPE, Slip (FT/FT) (M/M) FRICTION LOSS Hf (Ft/M) JUNCTION LOSS SURFACE FLOW Adj. Ht 1.3 Ht (Ft/M) Inlet Shaping? Y/N 0.5 Ht (FUM) FINAL H (FUM) Inlet Water Surlace Elevation Top of MH Top of Inlet Elev. APPROX Adjustment? Via Coll Ho (Ft/M) VI Vi'2/2g Hi (Eapn) 0.35^MAX (Vi2/2g) SKEW Angle K Bend H (Ft/M) Sum HE (Ft/M) 1 2 3 4 5 6 7 8 9 10 111 12 13 14 15 16 16 17 18 19 100 1 1 1 1 1 1 678.400 102 677.000 1.75 678.400 21 2.990 45.98 0.00032 0.015 4.178 0.068 4.184 0.272 0.095 0.0 0.00 0.000 0.163 0.000 0.163 YES 0.081 0.096 678.496 680.310 O.K. 126 678.890 1.00 679.690 12 2.500 5322 0.00439 0233 8.895 0.307 5.356 0.445 0.156 0.0 0.00 1 0.000 0.463 0.000 0.463 YES 0232 0.465 681.487 687270 O.K. 128 677.630 1.75 681.487 21 2.990 69.08 0.00032 0.022 5.356 0.111 5.261 0.430 0.150 0.0 0.00 0.000 0.262 0.000 0.262 YES 0.131 0.153 681.640 690.000 O.K. SWM #1 OUT 683.980 1.75 685.380 21 2.990 54.73 0.00032 0.017 5261 0.107 0.000 0.000 0.000 0.0 0.00 0.000 0.107 0.000 0.107 YES 0.054 0.071 685.451 686.500 O.K. 108 681.300 110 680.500 1.00 681.300 12 1 1.270 1 68.49 1 0.00113 1 0.078 1 3.404 1 0.045 1 6.545 0.665 1 0.233 1 0.0 0.00 0.000 0.278 0.000 0.278 YES 0.139 0.216 681.516 689.450 O.K. SWM #1, OUT 683.980 1.75 685.380 21 2.990 54.73 0.00032 0.017 5261 0.107 0.000 0.000 1 0.000 0.0 1 0.00 0.000 0.107 0.000 0.107 YES 0.054 0.071 685.451 686.500 O.K. 204 1 677.430 206 676.230 1.50 677.430 18 7.436 67.37 0.00446 0.301 5.192 0.105 5.178 0.416 0.146 0.0 0.00 0.000 0.250 0.000 0.250 YES 0.125 0.426 677.856 681.190 OX- 208 676.670 1.50 677.870 18 7.436 113.61 0.00446 0.507 5.178 0.104 5.072 0.399 0.140 0.0 0.00 0.000 0.244 0.433 0.244 YES 0.122 0.629 678-499 681.040 O.K. 224 677.340 1.00 678-499 12 1.763 46.92 0.00218 0.102 10.209 0.405 0.000 0.000 0.000 0.0 0.00 0.000 0.405 1.763 0.526 YES 0.263 0.365 681-362 690.230 O.K. 210 677.340 1.50 678.540 18 6.912 44.98 0.00386 0.173 5.072 0.100 6.034 0.565 0.198 0.0 0.00 0.000 0.298 0.115 0.298 YES 0.149 0.322 678.862 682.060 O.K. 212 677.660 1.50 676.862 18 6.797 38.35 0.00373 0.143 6.034 0.141 6.657 0.688 0.241 0.0 0.00 0.000 0.382 0.152 0.382 YES 0.191 0.334 679.196 683.230 O.K. 214 678.050 1.50 679.250 18 6.645 19.24 0.00356 0.069 6.657 0.172 8.635 1.158 0.405 0.0 0.00 0.000 0.577 0.171 0.577 YES 0.289 0.357 679.607 683.750 O.K. 216 679.960 1.25 680.960 15 6.474 21.76 0.00895 0.195 8.635 0.289 7.084 0.779 0.273 0.0 0.00 0.000 0.562 0.167 0.562 YES 0.281 0.476 681.436 683.750 O.K. 222 680.500 1.00 681.436 12 1.695 13.78 0.00202 0.028 7.084 0.195 0.000 0.000 0.000 0.0 0.00 0.000 0.195 1.695 0.253 YES 0.127 0.154 681.590 685.540 O.K. B103 680.500 1.25 681.500 15 1.730 57.17 0.00064 0.037 5.779 0.130 10.274 1.639 0.574 0.0 0.00 0.000 0.703 0.000 0.703 YES 0.352 0.388 681.888 685.750 O.K. 218 681.600 1.25 682.600 15 6.340 41.43 0.00858 0.355 10274 0.410 6.855 0.730 0.255 0.0 0.00 0.000 0.665 0.000 0.665 YES 0.333 0.688 683.568 687.150 O.K. EX 230 683.040 1.25 684.040 15 6.340 35.62 0.01007 0.359 6.855 0.182 5.998 0.559 0.196 0.0 0.00 0.000 0.378 0.000 0.378 YES 0.189 0.548 694.588 691.380 OX- 232 683.880 1.25 684.885 15 6.340 51.06 0.01007 0.514 5.998 0.140 6.169 0.591 0.207 0.0 0.00 0.000 0.346 0.000 0.346 YES 0.173 0.687 685.572 692.780 OX- 234 684.390 1.25 1 685.572 15 6.340 89.73 0.00858 0.770 6.169 0.148 0.000 0.000 0.000 0.0 0.00 0.000 0.148 6.340 0.192 YES 0.096 0.866 686.438 689.300 O.K. 302 676220 304 675.220 1.25 676220 15 5.780 45.93 0.00713 0.328 7239 0.203 7288 0.825 0.289 0.0 0.00 0.000 0.492 0.000 0.492 YES 0.246 0.574 676.794 6B0.010 OX- 306 675.850 1.25 676-850 15 5.780 42.99 0.00713 0.307 7288 0.206 7.928 0.976 0.342 0.0 0.00 0.000 0.548 0.000 0.548 YES 0.274 0.580 677.430 679.340 OX- 308 676.450 125 677.450 15 5.780 88.28 0.00713 0.630 7.928 0.244 10.226 1.624 0.568 0.0 0.00 0.000 0.812 0.000 0.812 YES 0.406 1.036 678.698 681.830 O.K. 310 678.080 125 679-OBO 15 5.780 33.53 0.00713 0239 10226 0.406 7.588 0.894 0.313 0.0 0.00 0.000 0.719 0.000 0.719 YES 0.359 0.599 679.806 694.000 OX- 312 679.320 1.25 680.320 15 4260 2127 0.00387 0.082 7.588 0224 5.301 0.436 0.153 0.0 0.00 0.000 0.376 0.000 0.376 YES 0.188 0271 680.591 686.510 O.K. SWM#2 OUT 679.820 1.25 680.820 15 4260 24.57 0.00387 0.095 5.301 0.109 0.000 0.000 0.000 0.0 0.00 0.000 0.109 0.000 0.109 YES 0.055 0.150 680.970 684.000 OX- SWM #1, IN 689.000 136 688.140 1.00 689.000 12 3257 18.89 0.00744 0.141 6.078 0.143 5.997 0.558 0.195 0.0 0.00 0.000 0.339 1.273 0.441 YES 0.220 0.361 689.361 696.160 OX 138 688.480 1.00 689.361 12 3.136 47.14 0.00690 0.325 5.997 0.140 4.968 0.383 0.134 0.0 0.00 0.000 0.274 1.205 0.356 YES 0.178 0.503 689.864 696.750 OX 138A 689.170 1.00 689.970 12 1932. 11.67 0.00262 0.031 4.968 0.096 5.200 0.420 0.147 0.0 0.00 0.000 0.243 0.000 0.243 YES 0.121 0.152 690.122 697.310 OX 139B 689.360 1.00 690.160 12 1932. 1980. 0.00262 0.052 5200 0.105 4.508 0.316 0.110 0.0 0.00 0.000 0.215 0.000 0.215 YES 0.108 0.160 690.320 697.560 OX TD 689.800 1.00 690.600 12 1.377 30.92 0.00133 0.041 4.508 0.079 0.000 0.000 0.000 0.0 0.00 0.000 0.079 0.000 0.079 YES 0.039 0.081 690.681 692.750 OX 134 686.570 1.50 689.000 18 6.385 17.59 0.00329 0.058 6.071 0.143 7.937 0.978 0.342 0.0 0.00 0.000 0.485 0.000 0.485 YES 0.243 0.301 689.301 696.450 OX EX 400 686.980 1.25 689.301 15 6.385 1919. 0.01021 0.196 7.937 0.245 5.816 0.525 0.184 0.0 0.00 0.000 0.428 1.353 0.557 YES 0.278 0.474 689.775 696.680 OX 402 688.530 1.25 689.775 15 5.033 309.75 0.00635 1966. 5.816 0.131 5.870 0.535 0.187 0.0 0.00 0.000 0.319 1.428 0.414 YES 0.207 2.173 692.450 698.380 OX 404 691.420 1.25 692.450 15 3.605 3621 0.00326 0.118 5.870 0.134 5.037 0.394 0.138 0.0 0.00 0.000 0.272 0.000 0.272 YES 0.136 0254 692.704 697.970 OX 406 691.920 1.25 692.920 15 3.605 14.46 0.00326 0.047 5.037 0.098 3.328 0.172 0.060 0.0 0.00 0.000 0.159 2.147 0.206 YES 0.103 0.150 693.070 697.860 OX EX 408 692.040 1.25 693.070 15 0.736 38.02 0.00014 0.005 3.328 0.043 0.000 0.000 0.000 0.0 0.00 0.000 0.043 0.736 0.056 YES 0.028 0.033 693.103 696.020 OX 132 688.760 1.00 689.560 12 0.995 2421 0.00069 0.017 8.656 0291 0.000 0.000 0.000 0.0 0.00 0.000 0.291 0.995 0.378 YES 0.189 0206 690.904 695.320 OX 148 689.150 1.25 690.150 15 1.405 108.31 0.00042 0.046 6.954 0.188 3.813 0.226 0.079 0.0 0.00 0.000 0.267 0.000 0.267 YES 0.133 0.179 693.197 700.830 OX 150 693.020 1.25 694.020 15 1.324 172.49 0.00037 0.065 3.813 0.056 6.953 0.751 0.263 0.0 0.00 0.000 0.319 0.977 0.415 YES 0.207 0272 694.597 700.110 OX 152 684.290 1.25 694.597 15 0.347 94.03 0.00003 0.002 6.953 0.188 0.000 0.000 0.000 0.0 0.00 0.000 0.188 0.347 0.244 YES 0.122 0.124 695.106 699.740 OX 146 688.760 1.00 689.560 12 1.100 27.69 0.00085 0.024 8.919 0.309 0.000 0.000 0.000 0.0 0.00 0.000 0.309 1.100 0.401 YES 0.201 0224 691.194 696.690 OX 154 694.900 1.00 695.700 12 0.085 61.33 0.00001 0.000 1.825 0.013 0.000 0.000 0.000 0.0 0.00 0.000 0.013 0.085 0.017 YES 0.008 0.009 695.709 699.530 OX SWM#2, IN 683.000 316 682.260 1.25 683260 15 2.483 12.18 0.00132 0.016 11238 0.490 0.000 0.000 0.000 0.0 0.00 0.000 0.490 2.483 0.637 YES 0.319 0.335 683.595 687.790 O.K VAJX I VMDO Architects vmdo.com 434.296.5684 200 E Market Street 2000 Pennsylvania Ave NW Ste 7000 Charlottesville, VA 22902 Washington, DC 20006 � 00090 • 0 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. bemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 VDOE Project Number 002-34-00-101 VMDO Project Number 1284 Bryan D. Cichocld Z lie. No. 53741 yss7.��i Checked By Designed By Drawn By B. CICHOCKI K. ROESER K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 STORM SEWER TABLES C7n2 0 r �� I -������ • I, �, .IIII III I 1 \\ I II II I I v I I \ I I I I II I I � I \ I \ I I I I I I \ I I I I I I IIIII I I I I I i I II I II I I I \ I I I I CO (1) ACE RBR (8) QUE PHE • (5) BET RIV I I � 0:00,D yM� v I , 1 • �I � I \ SEE SHEET L1.1 FOR DETAIL �j LANDSCAPE PLAN I I � I I\ ,m I / / \ ,J I�Illllli 1 �\�\ � III II / IL Oil 1 601 SF I I ^IIII I �lillli 1�y �/ 1 Ililllll I �\ \IIII// / 1 � EXISTING SOCCER FIELD V 1279825E— \ \ II III I \ \ \ I III I I \d I \ I \ \ \\ \ I I \ \ o IIII v v v v I I� 7- 0 1743 $F \ v v v 794 F in in in77 c PLANT KEY TREES BOTANICAL NAME ACE RBR ACER RUBRUM BET RIV BETULA NIGRA GIN PSG GINKGO BILOBA'PRINCETON SENTRY' NYS SYL NYSSA SYLVATICA PLA OCC PLATANUS OCCIDENTALIS QUE PHE QUERCUS PHELLOS TIL CDR TILIA CORDATA EVERGREEN TREES BOTANICAL NAME JUN EAS JUNIPERUS VIRGINIANA FLOWERING TREES BOTANICAL NAME COR FLO CORNUS FLORIDA SHRUBS BOTANICAL NAME CAL ATH CALYCANTHUS FLORIDUS 'ATHENS' ILE DWA ILEX CORNUTA'DWARF BURFORD' ILE GLA ILEX GLABRA ILE RED ILEX VERTICILLATA'RED SPRITE' ITE SPR ITEA VIRGINICA'SPRICH' TM GRASSES BOTANICAL NAME JUN EFF JUNCUS EFFUSUS PAN HEA PANICUM VIRGATUM 'HEAVY METAL' PAN SHD PANICUM VIRGATUM-SHENANDOAH- PERENNIALS BOTANICAL NAME ECH PUR ECHINACEA PURPUREA HYP CAL HYPERICUM CALYCINUM RUD HIR RUDBECKIA HIRTA SED ALT SEDUM X •AUTUMN JOY' 1794v5F �, �� v i v �` V` v m �yP� Ir 1 1296 SF \\ MEADOW PLANTINGS 12,901 SF ��% I - - - - - - - _ ...� • \ vv `� A vVA AAvV I �i� �� SEE SHEET L2.0 ® SEE SHEET ® I \ \ \., ` \ \\ / CANOPY COVERAGE AREA • \ ` \ L1.1 FOR DETAIL \ LANDSCAPE PLAN �\ ��Vv\V 1000 S IF EXISTING TREE O (3) NYL4S OCC v f8 PARKING LOT LANDSCAPING KEY I �68 /5 S, �689- ,;�v �; o °oor \ v;vvv;v //' ,• - 8 —• C � ,fie' � ��� � \ \ � � � \ \ 'w \\ \ \ \ \\\\ SCALEV=60' f \ PARKING LOT LANDSCAPING 3,965 SF I _ _ % ' s J /! \i / 692 1 137 SF \ \ ` ` • \ ` \ \ 0 60' 120' 69 \\ `v v �� 6�� o v s v v v vV A v v v 69 2 1266 - 93—L693-- 31 5 SF tl \ ADD ALT. 1 PLAN SHOWN. REF. CIVIL O71 ri SHEET C9.0 FOR BASE BID CONDITION MEADOW\\ 5 v ��M / - SEE SHEET 11.2 FOR _ _ v v vA v v� , �\ PLANTINGS 'v © ADD ALT. 1 - COURTYARD _ - DETAIL LANDSCAPE PLAN BUILDING i �� x i ,� , , v v y ADDITION 011 sA r - ss�� EXISTING SCHOOL BUILDING s I < / / I (42) JUN EAS BUILDING ` ADD ALT. 3 AND 4 PLAN SHOWN. REF. CIVIL SHEET C9.1 FOR BASE BID CONDITION ADDITION 3 COR FLO ° I I I I \ �� i� ( ✓� i \ \ \\\ I - / 704 I I I I �'K \ \ \ \ \\ \ \ / A / / co I 6'j,i 0.0 • - 1 �33 F /Q02 q �� - 1i \ \ \ I\\ \\ ® - ® \ \\VA. \AAVA I \ I 0 . ® ® (5) GIN PSG o° NN (3) JUN EAS ® - ® - 1 Co- A - tee•7!2 ,� i V A vvv I s -mow ® w 1� ��3 BET RIV v \� �i� \\V \ I 9 w_ 0 aO \\\I 1 30 35 pp / - 888 F V I v\ v v vv v — - - / A 1283 I 168Q \ a\\ • /� s� I �sv ,6SEESHEET �v ® '0SEE SHEET ( �� � v 6v 6v A v tt ' i v v = L1.1 FOR DETAIL COP)I + (9) PLA OCC o �A 6 LANDSCL1.1OAPED ETAIL PLAN (4 I)S D AUT' �s� p �t i,4' \ �V LANDSCAPE PLAN v Avv (5) QUE PHE �o DK -® 0 07 OTIL COR 2jp' j O v v v x ( \ p l vvv 11 ILE GA 68 C \ ( ) 1 NYS SYL 3 \ • 699 (1) QUE�PHE ;(149) JUN EF�` I I — / + +�� �_ + +LA ti + r � I I, I a 8) ILE RED v v v ( \ c� \ J( x I v v\ EXISTING TREE \ ( (21) ILE GLA ��� / i� v v 1 �- (118SP D SHD — (37 E RED— / p C9 �o� �� ( )ILE DVVA� - c°'o v , v v v v� SEEDLINGS TO BE +A i ` -\ \ . - 34 \ ( ) ) C �i \\\ \\ \\ UNDER -PLANTED � 30) ILE DWA � � (5) IL o USED AU (p � vAv WITH MEADOW _ I IV I 70, � �(26) BET R _ 82 - I 702 I 7 r PLA OCC 6J,1 8 2 SF / m 1067 8F \ _ I I _ -� �482SF 744 SF 703I 1 0 06 r -- - = - ---- --_ '- _ __ - -- _ _ --- ---- ---- y UFO _ �� / J -'� - • / 3 ^oo __ �� �- - _-- _ _ - - 97 HYP CAL i / -PAN _ — - 86 PAN HEA . 68 _ 0a - - saa- 4 ACE RBR I '. �` = - - (920ECH PURD ( ) ( ) - I /• 704 F SH �) ' ��=_-__- $ ) 33 PAN SHD 24 ITE SPR �/� -----r ` v -(20) ITE SPRY v (77) RUD HIR v ` (71) JUN EFF ` a I EXISTING TREE TO (122)SEDAUT \ \ L �(14)ITESoi�y (3)ACE RBP N -- o—= -- uF- o REMAIN -TYP. uFoL N J I �V O A vv\ rn \ VAS A 0 Z E -�_ UFO� C R goal—_ \\\ 6HF -'��•- 1 -7OrJ_ _--- - - - -- _ _ _ _ _ o� \ o \`� \\ \\ —U O = _ -__ _ _ - - Now _ o �bN 700 CO^ _I- - - - - - - - 706 TO�dH `v f / —UF _ ___ �i� / OHP / J — — — - - _ OS OHP y \ §AN Y, \ / _ x sn T _ \Co V AA D O VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com •00••00 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. NO rbemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 Client Project Number TBD VMDO Project Number 1284 Checked By Designed By Drawn By W. H III Wo. 14 02/05/21 1 F.HAN000K F.HAN000K M. RACHNER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 OVERALL LANDSCAPE PLAN Lli L1.1 DETAIL PLANT KEY SHRUBS BOTANICAL NAME CEP OCC CEPHALANTHUS OCCIDENTALIS CLE HUM CLETHRAALNIFOLIA'HUMMINGBIRD' COR KEL CORNUS SERICEA'KELSEYF HYDMUN HYDRANGEA QUERCIFOLIA'MUNCHKIN' ILE GLA ILEX GLABRA ILE RED ILEX VERTICILLATA'RED SPRITE' ITE SPR ITEA VIRGINICA'SPRICH' TM GRASSES BOTANICAL NAME CAR APL CAREX APPALACHICA CAR MRO CAREX MORROWII CAR PYL CAREX PENSYLVANICA DES GOL DESCHAMPSIA CESPITOSA'GOLDTAU' JUN EFF JUNCUS EFFUSUS PAN SHD PANICUM VIRGATUM 'SHENANDOAH' SPO HET SPOROBOLUS HETEROLEPIS PERENNIALS BOTANICAL NAME HEU ALIT HEUCHERA VILLOSA'AUTUMN BRIDE' HYP CAL HYPERICUM CALYCINUM IRI VER IRIS VERSICOLOR LOB CAR LOBELIA CARDINALIS MONMCX MONARDAX'GARDENVIEWSCARLET' OSM REG OSMUNDA REGALIS RUD FILL RUDBECKIA FULGIDA FULGIDA SED AUT SEDUM X 'AUTUMN JOY' BUILDING ADDITION FOUNDATION PLANTINGS MEN 1 ` 1 ��. RIM ♦ � a \, ♦ • LE.� • - i► . X07— ------------ IWINEM11 ^• ...r.�rrfPPP1 ••••••••• i••••••c••. .II•WM lI .% ►�.��1, �...�'///////' 700////ff//L7I ��.>� ��� �7 ;�;'� �` act;`�;`� �D•�•❖i••�.�•i i i i• ••••i • • • • J� �.r �.r 'i' -� 1� �T"i�r *. •,i���'`'� /� C''o', :;'�'�`'�``�''�`+d'`r • • • Oiii•. �••iii•:••iii❖i••i��,`If✓�rt��� ••� -I D��Ir.:R%�;R;�;�;�;io , ; ' �.+/% :•:•:. ❖.•..•..•.•..�.•.❖..•...•,•. �•�rlli►',r��"�s•.., _ ,� /►` • � /. •�A� � 11� 1��YI`'� ` /.� - .e���mrj.�•jjjj:j:�:j% 7!!�� �i,'�' /' / FA WL /ikmhwartiNMI .•••I�••••••••••1•4••••••••••••••� • v \ r ��� ••ii O•!••i O • ••ii • . IF WX 1014 ,•••••••••••••••• Ili, 1 sii•°�ciii••i•iiiii�•iii•�ii � � � � � � � � � llllll� llllll� lllllllllllllllllllllll� I. /' �' . ♦ / Co I: Co c ,�� I: / err , \ / / (61) SPO HET i / 4 ♦ \ SEE SHEET 1.0 � . ' � ♦ FOR TREE / j .I : :� ; ' / .;' :... `/ I (102) RUD FUL' N . +n (64) SPO HET/N' . PLANTINGS / TURF / r r ./ 0 / / / / / r / r / r / i / v - / D D' All j - / v 9 / • h / / +. I _I —I I / \ \ "t : ; • / (128) RUD FUL (116) SPO HET �. . (106) SPO HET / (44) LOB CAR (36) JUN EFF% --• - - ' / / /// ,I ' /(44) LOB CAR / (36) JUN EFF / CAR � • 100 s / . 111111 �I I I I I� (36) JUN EFF TURF , O CEP OCC 1 / s / / / f. f 29 ILE RED / ��� 00. � _ - I T-I�T1 (44) LOB CAR/ ' / T— I I -fir 1111 '/(36) JUN EFF / f' . . . . . 00 / f / \ l / � 1 .,: iso aft ���.r.� Ir' _ j / I \ 00 00 SCALE 1/8"=1'0" PLAYGROUND PLANTING PLAN D 8' 16' V AA D O VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com •0•••00 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. • rbemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 Client Project Number TBD VMDO Project Number 1284 Checked By Designed By Drawn By W. H �o. 14 �"'`pC,I�III 02/05/21 1 F.HAN000K F.HAN000K M. RACHNER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 DETAIL LANDSCAPE PLAN Ll n 1 ADD ALT 1 - COURTYARD PLANT KEY SHRUBS BOTANICAL NAME COR KEL CORNUS SERICEA'KELSEYI' HYDMUN HYDRANGEA QUERCIFOLIA'MUNCHKIN' ILE RED ILEX VERTICILLATA'RED SPRITE' ITE SPR ITEA VIRGINICA'SPRICH' TM GRASSES BOTANICAL NAME CAR APL CAREX APPALACHICA CAR MRO CAREX MORROWII SPO HET SPOROBOLUS HETEROLEPIS PERENNIALS BOTANICAL NAME HEU AUT HEUCHERA VILLOSA -AUTUMN BRIDE- I SAN ` t \ \ \ i I � I ------------------ BUILDING ADDITION %rrrrrrrrr_G„l�i'l ®� �� !I�Ir%Ir%Iriririri `yN • yyyMMM s� f� I ` s•� y < �_ • • �M4MMy�0 • <• A I,, -r�r,We lerle reMe rer�r��-r fir; �1 �■ea` ��_—_ f 04 kll �_! IR . 1 . � Jt I . , .: • ADD ALTERNATE 1 - COURTYARD PLANTING PLAN BUILDING ADDITION � A Ill V A SCALE 1/8"=1'0" 0 8' 16' VAJX D O VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com •0•••00 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. ounty Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 Client Project Number TBD VMDO Project Number 1284 Checked By Designed By Drawn By W. HAfpC,I�III �o. 14 �"'` 02/05/21 1 F.HAN000K F.HAN000K M. RACHNER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 DETAIL LANDSCAPE PLAN L1n2 Professional Erosion Control Seed Mixture SLOPEMASTER is a seed mixture specifically designed for erosion control where rapid establishment is a necessity with little follow up maintenance. SLOPEMASTER features the durable white clover Durana which is a medium -leafed, intermediate type white clover containing as many as 97 stolons per sq. foot which will secure most erodable soils. Durana is a superior white clover that is persistent and will fixate up to 150 lbs of atmospheric nitrogen per acre per year. The Nitrogen fixation by Durana will provide enrichment to a stand of low maintenance cool & warm season turfgmss. Durana is durable and you can count on it to compliment a stand of tall fescue or bermuda with lespedeza to maintain a long stand life. SLOPEMASTER is also treated with Pennington's exclusive GermMax technology for enhanced establishment. Characteristics: • Extremely durable erosion control mixture • Aggressive growth to provide complete ground cover • Contains perennial seed that establish quickly and last for years • Durana White Clover establishes stoloniforus growth to hold soils in place • Durana White Clover fixates atmospheric Nitrogen for reduced fertilizer requirements Where toplant. Jb Primary Adaptation ] Adapted in some sites Establishment: SLOPEMASTER can be planted by drilling, broadcasting, or hydraulic seeding. Planting can be made throughout the year when mixed with companion grasses that are suitable with planting dates, i.e. tall fescue in the fall or bermudagrass in the spring. Planting depth should be no more than inch (6.35 rum) for many stand failures result from planting to deep. Liming to a pH of 6.0 and providing adequate potassium and phosphorus are necessary to ensure a productive stand. Soil testing is highly recommended. Southern Fall/Spring Mixture: Northern Mixture: 50% Turf Type Tall Fescue 75% Turf Type Tall Fescue 40% Unhulled Serecia Lespedeza 11% Annual Ryegrass 10% Durana White Clover 9% Unburied Serecia Lespedeza 5% Durana White Clover Seeding Rates. 50-200 Ibs / acre (22.7-90.80 kgs / hectare) P.O. BOX 290 ` MADISON, GA 30650 * (706) 342-1234 * 800-277-1412 STEEP SLOPE PLANTINGS - 3:1 OR GREATER NOT TO SCALE Rain Garden Mix - ERNMX-180 Botanical Name Common Name Prim/lb 33.40 % Sch/zachynum scopanum, Itasca; MN Ecotype Little Bluestem, 'Itasca', MN Ecotype 10.41 20.00 % Elymus uirginicus, Madison' Virginia Wildrye,'Madison' 5.40 7.00 % Carex rulpfnofdea, PA Emtype Fox Sedge, PA Ecotype 24.00 5.60 % Chasmanthium lahiolium, WV Ecotype River Oats, WV Ecotype 80.00 5.50 % Echinacea purpurea Purple Coneflower 36.00 3.00 % Chamaeczista famculata, PA Ecotype Partridge Pea, PA Ecotype 6.00 3.00 % Coreopsislanceolata Lanceleaf Coreopsis 24.00 3.00 % Panicum ciandesbrnum, Tioga Deertongue, Tinge 16.84 3.00 % Panicum nodulum, PA Ecotype Redtop Panicgrass, PA Ecotype 48.00 . 3.00 % Rudbeckia hwta Blackeyed Susan 20.00 3.00 % Verbena hastata PA Ecotype Blue Vervain, PA Ecotype 32.00 2.00 % Heliopsishelianthoides, PA Ecotype Oxeye Sunflower, PA Ecotype 28.00 1.80 % Asaepiasincamata, PA Ecotype Swamp Milkweed, PA Ecotype 160.00 1.00 % Carexscopana, PA Ecotype Blunt Broom Sedge, PA Ecotype 72.00 1.00 % Senna hebecarpa, VA & WV Ecotype Wild Senna, VA & WV Ecotype 24.00 0.60 % He/enium autumnale, PA Emtype Common Sneezeweed, PA Ecotype 180.00 0.50 % Aster no✓ae,angliae, PA Ecotype New England Aster, PA Ecotype 360.00 0.50 % Aster prenanthades, PA Ecotype Zigzag Aster, PA Ecotype 360.00 0.50 % Bapasia austrafis Southern WVEcotype Blue False Indigo, Southern WV Ecotype 80.00 0.50 % Pymanthemum tenuifolium Narrowleaf Mountainmint 140.00 0.50 % zfzia aurea Golden Alexanders 240.00 0.40 % Monardafistulosa, Eortlndiantown Gap -PA Ecotype Wild Bergamot, Fort Indiantown Gap -PA Ecotype 80.00 0.30 % Eupatorium perfoliatum, PA Ecotype Boneset, PA Ecotype 160.00 0.30 % Juncus tenuis, PA Ecotype Path Rush, PA Ecotype 66.00 0.20 % Juncus efflsus Soft Rush 40.00 0.20 % Solidigi nemoialis, PA Ecotype Gray Goldenrod, PA Ecotype 360.00 0.20 % Solidago rugosa, PA Ecotype Wrinkleleaf Goldenrod, PA Ecotype 420.00 100.00 % Mix Price/lb Bulk; $31.12 Seeding Rate: 20 lb per acre with a cover crop of grain rye at 30 lb per acre Stormwater Management; Uplands & Meadows The native perennial forbs and grasses provide food and cover for rain garden biodiversity. Mix formulations are subject to change without notice depending on the availability of existing and new products. While the formula may change, the guiding philosophy and function of the mix will not. MEADOW MIX NOT TO SCALE County of Albemarle Conservation Plan Checklist -To be placed on Landscape Plans (Handbook, pp JH-Z84-ill -297 for complete specifications) 1. The fW wwtmg items shr-y be mown on the plan• ® Trees to be saved; 63 Limits of clearing (outside dripline of trees to be saved); 63 Location and type ofprotectivefencing; lie Grade changes requiring twee wcus s weirs; 0 Proposed trenching or tunneling. beyond the limiits of cleating, 2. Markings: ® All trees to be saved shall be markmiU with P17 Tq or ribbon at a height clearly visible to equipment operators. ® No grading shall begin until the tree marIftlinbeen inspected and approved by a Countyhispxtor, 3. Pre -Construction Conference: ® Tree preservation and protection measures shall be reviewed with the contracts on site. 4. Eouipment Operation and Storage: 62 Heavy equipment, vehicular traffic and storage of construction matcoaals ificludifig soil shay no lie hyn' gilbin the drtpti® of I to be saved, 6. soil Erosion arid' Stormwater Detention Devices: ® Such devices shall not adversely affect trees to be saved 6. Fir ® Fires are not permitted within 100 feet of the dripline of trees to be saved. 7. Toxic Materials: ® Toxic materials shall not be aimed within 100 feet of the dripline of trees to be saved. a. Protective Fencing: ® Trees to be retained within 40 fed of a proposed building or grading activity shall be protected by fencing ® Fencing shall be in place and shall be inspected and approved by a Comity Inspector prim tograding or construction,. 9. Tree Wells: ® When the ground level must be raised within the driplino of a tree to pesgm" free well shall bepr6irldedmid a construction depQ submitted for approval. 10. Tree Ways: ® When the ground level must be lowered within the dripline a tree. to be saved, a tree well shall be provided; and a construction detail submitted for approval. 11. Trenching and Tunneling: ® When trenching is required within the limits offelcaring, it shall be done as far away from the trunks of Nees as possible. Tunneling under a large tree shall be con_sidamil rare when it is anticipated that necessary trenching will destroy, feedemoots. 12. Cleanup: ® Protective fencing shall be the last items removed during the fry Ic Panty, 13. Damaged Trees: ® Damaged trees shall be treated immediately by pruning fertilization a other mOdWo recolnrnended by a tree specialist. NOTE: IT is TiIE pEVE E 'S RESPONSMIIHTY TO CONFER WITH UM CONTRACTOR ON TREE CONSERVkfTpN L REQIUp2E1HENT8. All n CONTRACT PURCHASER SIGNATURE - - - -" -"- SATE) 5/1/06 Page 1 of 1 INSTALL SHRUBS SO THAT TPA TOP OF THE ROOTBALL IS P THE SAME GRADE P ORIGINALLY GROWN OR 1- ABOVE IN POOR DRAININ SOILS. DO NOT COVER THE TC OF THE ROOTBALL WITH SO REMOVE ALL STRING, WIRE, AN BURLAP FROM TOP Y3 OF BAI BACKFILL PLANTING PIT WIl NATIVE SOIL. INCORPORAi SLOW -RELEASE GRANULA FERTILIZE SCARIFY BOTTOM AND SIDE OF PIT SHRUB PLANTING 3- 2" x 2" HARDWOOD STAKES ROOT BALL 12 GAUGE GALVANIZED WIRE NEW 1/2" RUB 12 GAUGE GALVAN ALLOW FOR SLIGHT N 3 2x2 HARDWOO 2'-6" MIN BELOW STAKE SHALL BE MIN. 18" OUT FRI AND OUTSIDE OF 1 SET ROOTBALL FLUSH TO I 1-2" HIGHER IN SLOWLY SOILS. DO NOT COVER TI THE ROOTBALL` ROOTFLARE SHALL I ABOVE FINISH .lk: 1:1 SLOPE Oh PLAN - SCARIFY SIDES BEFORE PLACE IRO( UNEXCAVATED OR TAI MULTI -STEM TREE - STAKING SPECIFIED NOT TO SCALE PRUNE CODOMINATE LEADERS REMOVE BROKEN, BADLY DEFORMED, RUBBING, NARROW CROTCH ANGLES, WATER SPROUTS, OR CROSS -BRANCHES. REMOVE TAGS, LABELS, AND PLASTIC SLEEVING. DO NOT STAKE UNLESS SPECIFIED (SEE NOTE) DO NOT WRAP TRUNK PRUNE SUCKERS IF FIELD GROWN, CUTAWAY ALL BALLING ROPES. REMOVE BURLAP OR WIRE BASKET FROM TOP Y3 OF BALL. IF CONTAINER GROWN, REMOVE CONTAINER AND CUT CIRCLING ROOTS 1:1 SLOPE OF SIDES OF PLANTING HOLE SCARIFY SIDES BEFORE PLANTING TAMP SOIL AROUND ROOTBALL BASE FIRMLY WITH FOOT PRESSURE SO THAT ROOTBALL DOES NOT SHIFT REMOVE ALL DEAD, BROKEN, DISEASED, AND WEAK BRANCHES AT TIME OF PLANTING 2-3" MULCH LAYER, KEEP AWAY FROM TRUNK 1" COMPOST LAYER PROVIDE MULCH UP AND OVER SAUCER 6" SAUCER REMOVE CONTAINER. SCARIFY PERIMETER ROOTS GENERAL NOTES PLANT SCHEDULE TREES QTY BOTANICAL NAME COMMON NAME MIN. INSTALLED SIZE ROOT CANOPY CANOPY TOTAL ACE RBR 9 ACER RUBRUM RED MAPLE 2.5" CAL. B&B 452SF 4068SF BET RIV 16 BETULA NIGRA RIVER BIRCH 2.5" CAL. B&B 464SF 7424SF GIN PSG 13 GINKGO BILOBA'PRINCETON SENTRY' PRINCETON SENTRY MAIDENHAIR TREE 2.5" CAL. B&B 17SF 221SF NYS SYL 4 NYSSA SYLVATICA SOUR GUM 2.5" CAL. B&B 151 SF 604SF PLA OCC 13 PLATANUS OCCIDENTALIS AMERICAN SYCAMORE 2.5" CAL. B&B 1362SF 20430SF QUE PHE 14 QUERCUS PHELLOS WILLOW OAK 2.5" CAL. B&B 419SF 5866SF TIL CDR 8 TILIA CORDATA LITTLELEAF LINDEN 2.5" CAL. B&B 288SF 2304SF EVERGREEN TREES QTY BOTANICAL NAME COMMON NAME MIN. INSTALLED SIZE ROOT CANOPY CANOPY TOTAL JUN EAS 145 1 JUNIPERUS VIRGINIANA EASTERN RED CEDAR 7'-8' HT. IB&B 120SF 900SF FLOWERING TREES QTY BOTANICAL NAME COMMON NAME MIN. INSTALLED SIZE ROOT CANOPY I CANOPY TOTAL COR FLO 13 1 CORNUS FLORIDA EASTERN DOGWOOD 1.5" CAL., 6' HT. MIN. IB&B 1124SF 1372SF = 42189SF SHRUBS QTY BOTANICAL NAME COMMON NAME MIN. INSTALLED SIZE ROOT SPACING CAL ATH 26 CALYCANTHUS FLORIDUS'ATHENS' ATHENS SWEETSHRUB 24" HT./SPRD. CONTAINER 48" o.c. ILE DWA 64 ILEX CORNUTA'DWARF BURFORD' DWARF BURFORD HOLLY 24" HT./SPRD. CONTAINER 48" o.c. ILE GLA 32 ILEX GLABRA INKBERRY HOLLY 24" HT./SPRD. CONTAINER 48" o.c. ILE RED 13 ILEX VERTICILLATA'RED SPRITE' RED SPRITE WINTERBERRY 24" HT./SPRD. CONTAINER 48" o.c. ITE SPR 58 ITEA VIRGINICA'SPRICH' TM LITTLE HENRY VIRGINIA SWEETSPIRE 24" HT./SPRD. CONTAINER 36" O.C. GRASSES QTY BOTANICAL NAME COMMON NAME MIN. INSTALLED SIZE ROOT SPACING JUN EFF 71 JUNCUS EFFUSUS SOFT RUSH 1 GAL. CONTAINER 18" o.c. PAN HEA 86 PANICUM VIRGATUM 'HEAVY METAL' HEAVY METAL SWITCH GRASS 3 GAL. CONTAINER 24" o.c. PAN SHD 327 PANICUM VIRGATUM 'SHENANDOAH' SHENANDOAH SWITCH GRASS 3 GAL. CONTAINER 24" o.c. PERENNIALS QTY BOTANICAL NAME COMMON NAME MIN. INSTALLED SIZE ROOT SPACING ECH PUR 92 ECHINACEA PURPUREA CONEFLOWER 1 GAL. CONTAINER 18" o.c. HYP CAL 97 HYPERICUM CALYCINUM CREEPING ST. JOHN'S WORT 1 GAL. CONTAINER 18" o.c. RUD HIR 139 RUDBECKIA HIRTA BLACK-EYED SUSAN 1 GAL. CONTAINER 18" o.c. SED AUT 253 SEDUM X'AUTUMN JOY' AUTUMN JOY SEDUM 1 GAL. CONTAINER 18" o.c. PRE -CONSTRUCTION • 1. CONTRACTOR IS RESPONSIBLE FOR CONTACTING "MISS UTILITY" AT 1.800.552.7001 FOR LOCATION OF ALL UTILITY LINES.TREES SHALL BE LOCATED A MINIMUM OF 5 FEET FROM SEWERNVATER CONNECTIONS. NOTIFY LANDSCAPE ARCHITECT OF CONFLICTS. • 2. VERIFY ALL PLANT MATERIAL QUANTITIES ON THE PLAN PRIOR TO BIDDING, PLANT LIST TOTALS ARE FOR CONVENIENCE ONLY AND SHALL BE VERIFIED PRIOR TO BIDDING. • 3. PROVIDE PLANT MATERIALS OF QUANTITY, SIZE, GENUS, SPECIES, AND VARIETY INDICATED ON PLANS. ALL PLANT MATERIALS AND INSTALLATION SHALL COMPLY WITH RECOMMENDATIONS AND REQUIREMENTS OF ANSI Z60.1 "AMERICAN STANDARD FOR NURSERY STOCK". IF SPECIFIED PLANT MATERIAL IS NOT OBTAINABLE, SUBMIT PROOF OF NON AVAILABILITY TO THE LANDSCAPE ARCHITECT, DO NOT PRUNE TERMINAL LEADER TOGETHER WITH PROPOSAL FOR USE OF EQUIVALENT MATERIAL. OR BRANCH TIPS • 4. PROVIDE AND INSTALL ALL PLANTS AS IN ACCORDANCE WITH DETAILS AND CONTRACT SPECIFICATIONS. • 5. SOIL TESTS SHALL BE PERFORMED TO DETERMINE SOIL CHARACTER AND QUALITY. NECESSARY SOIL AMENDMENTS SHALL BE PERFORMED PER TEST RESULTS TO ENSURE PLANT HEALTH. REMOVE TAGS, LABELS AND PLASTIC SLEEVING DO NOT CONSTRUCTION/INSTALLATION WRAP TRUNK PRUNE BROKEN BRANCHES • 6. LANDSCAPE ARCHITECT RESERVES THE RIGHT TO REJECT ANY PLANTS AND MATERIALS THAT ARE IN AN UNHEALTHY OR UNSIGHTLY CONDITION, AS WELL AS PLANTS AND MATERIALS THAT DO NOT 2-3" MULCH LAYER TO EDGE OF CONFORM TO ANSI Z60.1 "AMERICAN STANDARD FOR NURSERY STOCK" DRIPLINE. KEEP 4-6" AWAY FROM • 7. LABEL AT LEAST ONE TREE AND ONE SHRUB OF EACH VARIETY AND TRUNK FLARE CALIPER WITH A SECURELY ATTACHED, WATERPROOF TAG BEARING THE DESIGNATION OF BOTANICAL AND COMMON NAME. ' 8. INSTALL LANDSCAPE PLANTINGS AT ENTRANCES/EXITS AND PARKING BACKFILL PLANTING PIT WITH NATIVE AREAS ACCORDING TO PLANS SO THAT MATERIALS WILL NOT SOIL. INCORPORATE SLOW -RELEASE INTERFERE WITH SIGHT DISTANCES. GRANULAR FERTILIZER • 9. CONTRACTOR IS RESPONSIBLE FOR WATERING ALL PLANT MATERIAL 6" SAUCER DURING INSTALLATION AND UNTIL FINAL INSPECTION AND ACCEPTANCE 1" COMPOST LAYER BY OWNER. CONTRACTOR SHALL NOTIFY OWNER OF CONDITIONS WHICH AFFECTS THE GUARANTEE. IF FIELD GROWN CUTAWAY ALL BALLING ROPES. REMOVE BURLAP OR INSPECTIONS/GUARANTEE WIRE BASKET FROM TOP Y3 OF BALL. IF CONTAINER GROWN, REMOVE • 10. UPON COMPLETION OF LANDSCAPE INSTALLATION, THE LANDSCAPE CONTAINER AND CUT CIRCLING ROOTS CONTRACTOR SHALL NOTIFY THE GENERAL CONTRACTOR WHO WILL VERIFY COMPLETENESS, INCLUDING THE REPLACEMENT OF ALL DEAD TAMP SOIL AROUND ROOTBALL BASE PLANT MATERIAL. CONTRACTOR IS RESPONSIBLE FOR SCHEDULING A FIRMLY WITH FOOT PRESSURE SO FINAL INSPECTION BY THE LANDSCAPE ARCHITECT. THAT ROOTBALL DOES NOT SHIFT • 11. ALL EXTERIOR PLANT MATERIALS SHALL BE GUARANTEED FOR ONE FULL YEAR AFTER DATE OF FINAL INSPECTION AGAINST DEFECTS INCLUDING DEATH AND UNSATISFACTORY GROWTH. DEFECTS RESULTING FROM NEGLECT BY THE OWNER, ABUSE OR DAMAGE BY OTHERS, OR UNUSUAL PHENOMENA OR INCIDENTS WHICH ARE BEYOND THE CONTRACTORS CONTROL ARE NOT THE RESPONSIBILITY OF THE CONTRACTOR. • 12. PLANT MATERIAL QUANTITIES AND SIZES WILL BE INSPECTED FOR COMPLIANCE WITH APPROVED PLANS BY A SITE PLAN REVIEW AGENT OF THE PLANNING DEPARTMENT PRIOR TO THE RELEASE OF THE CERTIFICATE OF OCCUPANCY. • 13. REMOVE ALL GUY WIRES AND STAKES 12 MONTHS AFTER INSTALLATION. :W ROOT BALL 12 GAUGE GALVANIZED WIRE "\- 3-2"x2" HARDWOOD STAKES GALVANIZED WIRE GUY 12 GAUGE. ALLOW FOR A SLIGHT AMOUNT OF MOVEMENT 8' 2"x2" HARDWOOD STAKE, 2'-6" MIN BELOW SURFACE. STAKE SHALL BE DRIVEN A MIN 18" OUT FROM TRUNK AND OUTSIDE OF ROOTBALL 2-3" MULCH LAYER TO EDGE OF DRIPLINE KEEP 4-6" AWAY FROM TRUNKFLARE SET ROOTBALL FLUSH TO GRADE OR 1-2" HIGHER IN SLOWLY DRAINING SOILS. DO NOT COVER THE TOP OF THE ROOTBALL WITH SOIL. ROOTFLARE SHALL BE VISIBLE ABOVE FINISHED GRADE 6" SAUCER BACKFILL PLANTING PIT WITH NATIVE SOIL. INCORPORATE SLOW -RELEASE GRANULAR FERTILIZER 1" COMPOST LAYER PLACE ROOTBALL ON UNEXCAVATED OR TAMPED SOIL NOTE: ONLY STAKE TREES WITH LARGE CROWNS, 2" CALIPER OR GREATER, IF LOCATED ON WINDY SITES, OR WHERE TAMPERING MAY OCCUR. 7 HEIGHT VARIES WITH PLANTS 12" MIN. PLAN VIEW: L1.1 DETAIL PLANT SCHEDULE SHRUBS QTY BOTANICAL / COMMON NAME MIN. INSTALLED SIZE ROOT SPACING CEP OCC 1 CEPHALANTHUS OCCIDENTALIS / BUTTONBUSH 36" HT./SPRD. CONTAINER 96" o.c. CLE HUM 16 CLETHRA ALNIFOLIA'HUMMINGBIRD' / HUMMINGBIRD SUMMERSWEET 24" HT./SPRD. CONTAINER 36" o.c. COR KEL 8 CORNUS SERICEA'KELSEYI' / KELSEYI DWARF REDTWIG DOGWOOD 24" HT./SPRD. CONTAINER 48" o.c. HYD MUN 17 HYDRANGEA QUERCIFOLIA'MUNCHKIN' / OAKLEAF HYDRANGEA 24" HT./SPRD. CONTAINER 48" o.c. ILE GLA 41 ILEX GLABRA/ INKBERRY HOLLY 24" HT./SPRD. I CONTAINER 48" O.C. ILE RED 157 ILEX VERTICILLATA'RED SPRITE/ RED SPRITE WINTERBERRY 24" HT./SPRD. I CONTAINER 48" o.c. ITE SPR 97 ITEA VIRGINICA'SPRICH' TM / LITTLE HENRY VIRGINIA SWEETSPIRE 24" HT./SPRD. I CONTAINER 36" O.C. GRASSES QTY BOTANICAL / COMMON NAME MIN. INSTALLED SIZE ROOT SPACING CAR APL 30 CAREX APPALACHICA / APPALACHIAN SEDGE 1 GAL. CONTAINER 18" O.C. CAR MRO 67 CAREX MORROWII /JAPANESE SEDGE 1 GAL. CONTAINER 18" O.C. CAR PYL 117 CAREX PENSYLVAN ICA/ PENNSYLVANIA SEDGE 1 GAL. CONTAINER 18" O.C. DES GOL 79 DESCHAMPSIA CESPITOSA'GOLDTAU' / GOLD DEW TUFTED HAIR GRASS 3 GAL. CONTAINER 30" o.c. JUN EFF 589 JUNCUS EFFUSUS / SOFT RUSH 1 GAL. CONTAINER 18" O.C. PAN SHD 114 PANICUM VIRGATUM 'SHENANDOAH' / SHENANDOAH SWITCH GRASS 3 GAL. CONTAINER 24" O.C. SPO HET 417 SPOROBOLUS HETEROLEPIS / PRAIRIE DROPSEED 1 GAL. CONTAINER 18" O.C. PERENNIALS QTY BOTANICAL / COMMON NAME MIN. INSTALLED SIZE ROOT SPACING HEU AUT 87 HEUCHERA VILLOSA'AUTUMN BRIDE' / AUTUMN BRIDE CORAL BELLS 1 GAL. CONTAINER 18" O.C. HYP CAL 107 HYPERICUM CALYCINUM / CREEPING ST. JOHN'S WORT 1 GAL. CONTAINER 18" O.C. IRI VER 78 IRIS VERSICOLOR / BLUE FLAG 1 GAL. CONTAINER 18" O.C. LOB CAR 176 LOBELIA CARDINALIS / CARDINAL FLOWER 1 GAL. CONTAINER 18" O.C. MON MCX 34 MONARDA X'GARDENVIEW SCARLET'/ GARDENVIEW SCARLET BEE BALM 1 GAL. CONTAINER 18" O.C. OSM REG 52 OSMUNDA REGALIS / ROYAL FERN 1 GAL. CONTAINER 18" O.C. RUD FILL 230 RUDBECKIA FULGIDA FULGIDA / ORANGE CONEFLOWER 1 GAL. CONTAINER 18" O.C. SED AUT 60 SEDUM X'AUTUMN JOY' / AUTUMN JOY SEDUM 1 GAL. CONTAINER 18" O.C. L1.2 ADD ALT 1 - COURTYARD PLANT SCHEDULE SHRUBS QTY BOTANICAL / COMMON NAME MIN. INSTALLED SIZE ROOT SPACING COR KEL 8 CORNUS SERICEA'KELSEYF / KELSEYI DWARF REDTWIG DOGWOOD 24" HT./SPRD. CONTAINER 48" o.c. HYD MUN 9 HYDRANGEA QUERCIFOLIA'MUNCHKIN' / OAKLEAF HYDRANGEA 24" HT./SPRD. CONTAINER 48" o.c. ILE RED 10 ILEX VERTICILLATA'RED SPRITE/ RED SPRITE WINTERBERRY 24" HT./SPRD. CONTAINER 48" o.c. ITE SPR 51 ITEA VIRGINICA'SPRICH' TM / LITTLE HENRY VIRGINIA SWEETSPIRE 24" HT./SPRD. CONTAINER 36" o.c. GRASSES QTY BOTANICAL / COMMON NAME MIN. INSTALLED SIZE ROOT SPACING CAR APL 30 CAREX APPALACHICA / APPALACHIAN SEDGE 1 GAL. CONTAINER 18" O.C. CAR MRO 67 CAREX MORROWII / JAPANESE SEDGE 1 GAL. CONTAINER 18" o.c. SPO HET 70 SPOROBOLUS HETEROLEPIS / PRAIRIE DROPSEED 1 GAL. CONTAINER 18" o.c. PERENNIALS QTY BOTANICAL / COMMON NAME MIN. INSTALLED SIZE ROOT SPACING HEU AUT 187 1 HEUCHERA VILLOSA -AUTUMN BRIDE / AUTUMN BRIDE CORAL BELLS 1 GAL. CONTAINER 18" O.C. EDGE OF BUILDING, WALK OR STRUCTURE VOIDS MULCH LINE PLANT UNDER DRIP LINE OF LIMBED UP SHRUBS & TREES TRIANGULAR INFILL SPACING PLANT PERIMETER AT INDICATED SPACING PLANT UP TO EDGE OF SHRUBS UNLESS OTHERWISE NOTED PLANT 2-3" MULCH LAYER 1" COMPOST LAYER AMENDED SOIL MIX UNDISTURBED EARTH STREET TREE PLANTING REQUIREMENTS * per Sec. 32.7.9.5 of the Albemarle County Code. REQUIREMENT YARD LENGTH CALCULATIONS REQUIRED PROVIDED 15 LARGE TREES 1 LARGE TREE PER 50 LF 745' 745150 = 14.9 TREES 15 TREES (11 EXISTING) PARKING LOT LANDSCAPE REQUIREMENTS * per Sec. 32.7.9.6 of the Albemarle County Code. REQUIREMENT AMOUNT CALCULATIONS REQUIRED PROVIDED 5%OF THE PAVED PARKING AREA IS TO BE 76,687 SF 76,687 x .05 = 3,834.35 SF 3,835 SF 3,965 SF LANDSCAPED 1 LRG. OR MED. SHADE 181/10 = 18.1 SHADE 19 SHADE TREES TREE PER 10 PARKING 181 SPACES TREES 19 SHADE TREES (1 EXISTING) SPACES TREE CANOPY REQUIREMENTS * per Sec. 32.7. 9.8 of the Albemarle County Code. REQUIREMENT SITE AREA CALCULATIONS REQUIRED PROVIDED 10% OF THE SITE IS TO 42,189 SF(PROPOSED) + BE COVERED BY TREE 830,049 SF 830,049 Ll0 = 83,005 SF 83,005 SF 176,343 SF(EXISTING) _ CANOPY 218,532 SF MEADOW PLANTINGS SCHEDULE MEADOW PLANTINGS SEE DETAIL #6 12,901 SF V AA D O VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com 0 00000 40 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. rbemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 Client Project Number TBD VMDO Project Number 1284 Checked By Designed By Drawn By ',W.H III o. 14 02/05/21 F. HANCOCK F. HANCOCK M. RACHNER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 LANDSCAPE NOTES AND DETAILS CONSERVATION CHECKLIST NOT TO SCALE DECIDUOUS TREE - STAKING SPECIFIED NOT TO SCALE GROUNDCOVER/ PERENNIAL PLANTING NOT TO SCALE L2n0 v REF. CIVIL DWGS.FOR hI IA v/ V I BASE BID AND ADD ALT. 5 1 \ I I 1 PLANS FOR ( \ _ BASKETBALL COURT 1 )/ \ --------- -- --- o \ `.� IIIIII CZ 69 ssp I I ' EXISTING SOCCER FIELD r O I ICID - /-- I \ 1 1 v J I al � I I I I I If z Ln I 1 a � If „ \ 1 00 V I 1 1 �I 10\ -qM � 0)D9 // V A v v v v I �\ z 79 `\ 8gv�LO � °^ �.a� • TIII/ 6I SEE EEA SHEET HEET IVrI AI I I II L3.1 3.1 83_�- FOR PLAYGROUND Iy / , LAYOUT AND MATERIALS PLANI Ivv �vI�\`vII Vv aI�vvgv vSo I�II- AI vvvI I\ \ \ v\1Av \ VA A\ � vv \bA\ \vv�3 v v1� \\l\v\ \v\ l\wA \t\\ �o \ If N AI I / -Z— 1 1ry c O I RELOCATED 8X8 JOO O SHED O \ cl" O 685� col"D—Il i 68ff 688— 89— 00p00 A 77 692 V\I\ \I \ 9 s J i I7­17 �O 693ADD ALT. 1 PLAN SHOWN. REF. CIVIL C/)\ I fI\\vo 69," SHEET C9.0 FOR BASE BID CONDITION -7 o ol cc Uf EXISTING SCHOOL BUILDING � BUILDING ADD ALT. 3 AND 4 PLAN SHOWN. REF. CIVIL SHEET C9.1 FOR BASE BID CONDITION \II1 A\I\A mIA A1� 1\I vAV 1 I�IA V VI vv v AA` \ \ �ZA -/ �v BUILDING EnADDITION 698 ADDITION FOR ADD ALT. 1 -COURTYARD LAYOUT 70� AND MATERIALS PLAN 0 0 ADD ALT. ADD ALT. 3 SEAT 05 a w coDINING TERRACE y SEE DETAIL 8, L4.0 0 SEAT WALL -SEE DETAIL 3,L4.0 \ ITI--- _�68 I868 „ A� v\9Q Io O �qp7 ti ;o 68 L69912 L1\ w c�° z -700 - a II '6 —I Vv,IVAv1IIv\Il I \ I I /\ A 11 1Lio— I —702 \ \ 702 \I I O_ rJ- O703- - LANDSCAPE BED `- --— LANDSCAPE BED \ 703ri 0qJ � 9 � Ur uF sil \ I/ - - _-- _--_- --- / - ---- --- ----- ---- _ --saa--- I / rn - - I �{ 704 OF , ' - °_ _- _\ _ \I 700 705 Ip i SA' ' __ / 10 N - - - P X-- v ON p X -X -=SAN 05 T / - _- _ v l WWI -UFO \ �\ v V A \� R —Z — --- ______. ——\�UFO— 0 rn - - - — � vv _v- 'u o ribN OEM / , , / —� �AUFo— mom—, / — —�� I I / �— — 0— OHP mom/ uFQ� i / -UFO _ �� — � OHP SCALE 1"=30' Ok g; 0 30' 6 I 6�OHFI / VAJx D O VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com 0000000 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. • rbemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 Client Project Number TBD VMDO Project Number 1284 Checked By Designed By Drawn By W. H III No. 14 02/05/21 1 F.HAN000K F.HAN000K M. RACHNER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 OVERALL LAYOUT AND MATERIALS PLAN L3n0 ASPHALT PAINT LEGEND I I v COLOR 'A' = PALE YELLOW \ I I I I I I I I V I I I I I \ I I I I I 1 \ I I I I \ I I I I I I I I I I \ COLOR'B' =LIGHT BLUE 1 I I I 1 \ I I I I I I \ \ I COLOR'C' = ROYAL BLUE I I I 1 \ I I I ! I I I I I I \ I I I I I I I \ I 1 \ EXISTING SOCCER FIELD \ \ v ■ ■ 4" TRACK STRIPING = WHITE \ I \ \ *SUBMIT COLOR SAMPLED TO LANDSCAPE ARCHITECT ASPHALT PLAYGROUNDBORDER.T OAPPLYNLY WITHIN HE PERIMETER TRACK IS TO \ REMAIN BLACK. Cl) 00 i ° ( I 00 ILO OODI I 1 °� 1 co (o 1 � a I - I --------------------------- I I I \ / I \ \ _ r I I _ PROPOSED PLAY EQUIPMENT BASIS OF v v DESIGN: BURKE ` ADDITIONAL ACOEPTABLE MANUFACTURERS: v / I RELOCATED BENCH ! ASPHALT TRACK ' \ A KOMPAN 4" WIDE PAINTED STRIPES / / ��; 1, \ PLAYWORLD / CONCRETE STEPS � v � GQ o / / / / o o / l / ✓� '' ♦•�"" ♦ FLUSH ` \ --------------- ---< PAINTEZ7ASPHALT ♦ O - - - \ 679 PAINTED ASPHALT s�S \ f ram- - - ♦ \ 1 / / \ 680 \-COLOR'B' ................. NTED ASPHALT— / -COLOR- C ... ... ... F.LU, ... ....... .. .. .. '.. \ 6 \ �i► L....... ...... _._ ..... �9 \\ \ \ .................. . I ♦ -- ................ (90 ♦ � ............ I, ' PROPOSED I \ SWINGS' ... ! ..... ` \ \ 1 \ a _ ... rI /A ......... : I I 1 — ..;(4:v:>:`:`:`:`:':: I.. i '- - FALL ZONE RELOCA DSWINGS � ♦ "......''''' '.' \ \ \ \ \ M, I 1 RELOCATED BENCH . I' 1 / _ - _ _ I\ ♦ \ \ """' \ \ EXISTING HOOP', � I I ► '� / \ \ 1 I \ � ♦ \ I \ \ � : \ ASPHALT TRACK I . \ - - - - PLAY EQUIPMENT I 1/ % 5P 1 ' \ ♦ .. 1 1 I �J, � I I \ \ i I N ASPHALT CURB , I / / I RELOCATED EXISTING PLAY / 1 ! v I V ' ' v ' ' V ` v I 1 II WOODCARPET EDGING 6 / 1 EQUIPMENT-ZIPLINEAND 1 \ ♦ 26'.'.'. 1 \ 1 3.5' - TYP. fl I PLAYGROUND ........ 1 / / ► ROPE CLIMBING STRUCTURE / 1 I I J ♦,;; \ \ \ 1 1 , II / ► FOUNDATIONS TO BE 1 \ s8 1 / / \� ♦ .. 6.5' I 1 II SURFACING ....... ...... 1 \ ♦ \ \ U\ BY OWNER J LOCATED OUTSIDE OF / \ N I ' - \ _ \ \ \.'.: \ \ RELOCATED BENCH \ �• , \ 1 Ic / 1 SANITARY EASEMENT \ m _ �♦ / 1 ASPHALT PAD - TYP. 1 CUSTOM INTENSITY/ ���� \ \: �\ I c I OODCARP NATURE PLAYGROUND /� FALL I 1 v r� / W ET ��������„ NAT E PLAY D / �\ �' ONE ` ... ........ / / I \ I v v I � ' . � I I / r � 1� ► IIA � / / PLAYGROUND I I 1 \ \ I EXISTING PLAY 1 / 1 1 / SURFACING - _ _ _ \ , \ I 1 \ EQUIPMENT 111 .......'.'. / .'.'. - - - - - - - BY OWNER - \ Goo♦ \ I \ � II I 1 I --- -- 11 ��— 1 5 .......... / ............ ' 1 / �/ -TY. V: , A 1 .......... ; O LANDSC P I \ I r 1 .......... /... / 1 �6s BEDA \ I \ \ \ r / I \ vv �: �� / / ........��1 / FLUSH SPINETIC W/ SPEED LIMITER �� 1 A A. V J A� �� PLAY EQUIPMENT / V 1 \ vv v A V ♦ ����T L/ — / , ......... '.'./.'. '............ .�/. �..�► COMET I PLAY \ \� . ♦ ��I' r ......... _ :�:� I NT .r�: ►�. EQUIPME_ �1 I / ` v v \ v� �♦ �8$ ' �l '�� r. �.�a�.�a'� v - O .' G6 METAL EDGING .�: _ _ I .� \ `� ,♦ // Q8S .... �rr'`� ° �` .� ��� <1 - _ / , \ STONE DUST PAVING \ \ \ \ � ' : ' ♦ r�'r t / / _ - \ _ _ / sa _ _ >t' ' as �� \ 1 � NATURE PLAY STUMPS \ ALTERNATE SMALL AND LARGE \ \ \ ♦ •�� ♦ i 5P / -' -- °.-----��: ate♦ (_ WOODCARPET 1 x�- \ \` \ ASPHALT CURB EDGING ��� PLAYGROUND'S „ I i FLUSHCONC.CURB x / _ ASPHALT TRACK _ �' . ♦R - �'�� �!♦ SURFACING- ° A A' ♦� BY \ \ RELOCATED BENCH , - a RELOCATED BENCH411 - - ��p 682 26 \ NA U M - - - - _ r \ \ ♦ a _ - — _ _ TURE PLAY ST MP - S ALL , ♦ 1 NATURE PLAY ROCK - SMALL / 1 m.'.'.'.'.....................\.. ---- ._ \0 0. 685 N LARGE ♦, \, i NATURE PLAY LOG TUNNEL ♦/ as - ♦� DEMONSTRATION c° Gbv - \ NATURE PLAY STUMP -SMALL \` �♦ ��� RAIN s\ GARDEN \ NATURE PLAY ROCK- LARGE J 687 688 —689 \ 6 86 ------ I 68 \ \ / / / i \ \ \ \ n n.40 \ f. -692 6 v v v v v V v v \v v SOVN v J d / Ny / 692 v �' / v v - v v v v A � v � v MCA E 1"=10' v 1bs \ \ \ \� e 0 10' 20' V AA I ) O VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com •0•••00 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. • rbemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 Client Project Number TBD VMDO Project Number 1284 Checked By Designed By Drawn By W. o HpC,I�III �o. 14 �"'` 02/05/21 1 F.HAN000K F.HAN000K M. RACHNER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 PLAYGROUND LAYOUT AND MATERIALS PLAN L3n 1 680 7� ` \\ SAN \ \ \ ADD ALT. REF. CIVIL DWGS. FOR BASE BID PLAN \ CENTERLINE \ \ ' OF MOVEMENT ADDITION \ ------------- - — GPI -------- -------------- ------ ---- --------------------------------A --- \ I \ I \ m0 I \ ' \ �\ v V LANDSCAPE BED \ DECORATIVE STONE BORDER I \ \ BASE BID ITEM \ LL7 \ vv� s s99. \ \ \ \ I 11 I I I j I I I II v 69B v v \ v 681 ` \ \ \ \ \ 1 A V A 1 A 1 \ V v E8 OVN 4111 v v 1 A v \ SCALE 1/4 1'0" , I 0 4\ VAJX D O VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com 0000000 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. rbemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 Client Project Number TBD VMDO Project Number 1284 Checked By Designed By Drawn By 'W.H III Wo. 14 02/05/21 1 F.HAN000K F.HAN000K M. RACHNER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 COURTYARD LAYOUT AND MATERIALS PLAN L3n2 FACE OF BUILDING 9" MIN. DEPTH PLAYGROUND MULCH VMDO DECORATIVE STONE BORDER 1 1/2" = 1'-0" 2" COMPACTED STONE DUST PATH W/ STABILIZER 4" COMPACTED VDOT FLUSH CURB - #21A STONE BASE 3@ 28 ,500 PSI @ 28 DAYS COMPACTED RAIN GARDEN - REF. SUBGRADE - 95% CIVIL DWGS. S.P.D. 3/16" THK. STEEL EDGING \ \\ W/ 12" STAKES @ 24" O/C TURF III III III II II 111 I I I � I I I I I I I I ROT -RESISTANT —III LANDSCAPE FABRIC - TURN UP AT EDGES COMPACTED SUBGRADE - 95% S.P.D. FLUSH CONCRETE CURB 1 112" = 1'_0" III=III=III=III=III=III— 3/16" THK. STEEL EDGING W/ 12" STAKES @ 24" O/C LARGE CHALET STONE - 4" MIN. DEPTH ROT -RESISTANT LANDSCAPE FABRIC ROT -RESISTANT ---`_I LANDSCAPE FABRIC —1 111 IIIIIIIIII 111; TURN UP AT EDGES II�IIIII�III1, 111— STONE DUST PAVING 1 112" = 1'_0" 2" COMPACTED STONE DUST PAVING W/ STABILIZER 4" COMPACTED VDOT #21A STONE BASE COMPACTED SUBGRADE - 95% S.P.D. EXTRUDED ASPHALT CURB LIGHT DUTY ASPHALT PAVING - REF. CIVIL DWGS.\� \� COMPACTED SUBGRADE - 95% S.P.D. PLAYGROUND EDGING - SECTION 1 1/2" = 1'-0" ADD ALTERNATE #1 IIIIIIIIIIIIIIII 11- ' I� IIIIIIIIIIII— III "I —III_, II I IIIII 111 11� I I IIII I I,11111111111� I ROT -RESISTANT LANDSCAPE FABRIC - TURN UP AT EDGES 8"x8" CONT. VDOT #57 STONE WRAPPED IN ROT RESISTANT FILTER FABRIC 4" PERF. PIPE - HOLES DOWN -CONNECT TO DRAINAGE SYSTEM 1 1 ' CONCRETE PAVING ' 4" COMPACTED VDOT ' #21A STONE BASE ' ' 2'-2„� 1/2" CAULKED EXP. JT ' W/ S.S. DOWEL @ 24" ' O/C ' ' CONCRETE STEPS d a ° ° ° ' SLOPE TOP OF CONC. TO a ° ° ' DRAIN ° a ° ' 5/4 x 3 IPE W/SLOTS Q _ ' 1 x 4 STRIP @ 18" O/C I III —III —I ATTACH TO 1 x 4 W/DECK CLIPS III —III —I III —I ° ° ° NO SLOTS ON a a III III —III —I —III —I EDGE PIECES - a ° a TYP. —III—III—III—III—III—III ° —III—III I I —I I I— N N °F. III III—III- STRUCT. DWGS. FOR N ° d ° _—III—III III —I WALL AND FOOTING ° a a III —III —III —III —III- DESIGN ° °° ° ° _ III —III —III —III —III N a III III —III —III —III —III ° ° ° ° III —III —III III —III —III- N ° ° � IIII III III III � N ° _ ° a � a I— III —III ° —III —III- I I —III —III —III —III —I 11 11 I—III—III—III-1 ` d ° III III ` � I I III III III I I N N —III ° ° III —III ° ° ° III —III —III ° °_ _—III—III—III—I III III— I I II I I I —III —III —III —III —III —III III —III —I I —III —I III III III III- —III —III; I l � N � 1 I I ; I III —III —III —III —III —III —III IIII;IIIIIIillllllllllilllll�,lll- � I I ' � 1 COURTYARD SEATING - SECTION ADD ALTERNATE #3 ADD ALTERNATE #1 ADD ALTERNATE #4 milli r � � � � � � � � � t It It 1• � � � � � � � � mi r � � � � � � � � � � � � � � It = � 1. 1. 1• � 1. 1. 1. 1. 1. 1. 1. 1. 1• 1 -6" SLOPE TOP OF CONC. TO ' DRAIN CONCRETE SEAT WALL ' #4 REBAR @ 12" O.C. SLOPE TOP OF CONC. TO DI ' #4 REBAR @ 12" O.C. 4 x3 IPE W/SLOTS a HORIZ. N � 2' 1 x 4 STRIP @ 18" O/CATTAC ' a 1/2" CHAMFER -TYP. d CONCRETE WALL #4 HORIZ. REBAR @ 18" O/C ' H TO 1 x 4 W/DECK ' CLIPS � d d Q #4 VERT. REBAR @ 18" O/C ' ' NO SLOTS ON ' CONCRETE WALL - SMOOTH 1/2" CAULKED EXP. JT a EDGE PIECES - FINISH ' S.S. DOWEL @ 24" ° ° a Q d 2^ c� TYP. ' O/C ° ° ° SIDEWALK a 4 � � —III— _ � ' CONCRETE PAVING °d a F = d a III III �r ° x¢ 4" COMPACTED VDOT d —III 6" VDOT #57 STONE - — a #21A STONE BASE ' WRAPPED IN ROT w 4 RESISTANT FILTER a as Q —III III III„ III III, d d III III III d III III —III —III —III —III 4" PERF. PIPE - HOLES ~ FINISH GRADE „III„ „III, ,III„ DOWN -CONNECT TO ROOF DRAINAGE SYSTEM @ 18" O/C #3' 2OLONGREBAR d d d a ° #4 HORIZ. REBAR 21" O/C @ - CONT. a a N 11 III III III III III ffi a g N1 C� d CONCRETE FOOTING O 4. a 4 4 a a d a 4 d d a 2' 0'-8" 1' CONCRETE FOOTING - 3000 PSI @ 28 DAYS COMPACTED SUBGRADE A III— 11 III-III=III -1 I_I—III—III—III, / III— ' l' , '—I � REF. STRUCT. DWGS. FOR ' #4 REBAR x 3 LONG @12 O.C. WALL AND FOOTING ' DESIGN (6) #4 REABAR - CONT. ' N CONCRETE SEAT WALL N COURTYARD PLANTING BED RETAINING WALL DINING TERRACE SEAT WALL - SECTION 8 1 1/2" = 1'-0" 6 1" = 11-01, 3 1" = 11-0" ' VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com •0•••00 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. • bemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Avenue, Crozet, VA 22932 Client Project Number TBD VMDO Project Number 1284 ,W.HA III Wo. 14 02/05/21 IN Checked By F. HANCOCK Designed By F. HANCOCK Drawn By M. RACHNER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02 DEC.2020 4 FINAL SITE PLAN & WPO PLAN SUBMISSION 05.FEB.2021 DETAILS L4.0 PROPOSED PHASING PLAN: PHASE 1: SUMMER 1 SITEWORK (APR 21 - JUL 21; 4 MONTHS) INSTALL ALL SAFETY BARRICADES (SITEWORK) 1.1 - GENERAL PHASE SETUP TASKS 1.1A CONTRACTOR TRAILER AREA TO UTILIZE EXISTING GRAVEL LOT; EXPAND AS NECESSARY UP TO FIELD 1.1B CONTRACTOR TO INSTALL GRAVEL ROAD FOR EMERGENCY ACCESS TO THE EAST SIDE OF THE PROPERTY TO SOCCER AND BALL FIELDS (NOT SHOWN). MAINTAIN CLEAR VEHICULAR PASSAGE AT ALL TIMES DURING THIS PHASE. 1.1C DEMOLISH PORTION OF EXIST WALLS TO CREATE TEMP EMERGENCY EGRESS DOORS FROM EXISTING SCHOOL (TO REMAIN UNTIL PHASE 4) (TYP. OF 2) 1.2 - DRILL WELLFIELD 1.3 - BUILD NEW BUS LOOP AND ROAD TO CROZET AVE. (PROVIDE INTERMEDIATE COURSE OF ASPHALT INITIALLY; FINAL COURSE IN PHASE 4) 1.3A INSTALL STORMWATER STRUCTURES AND PIPE 1.313 INSTALL CURBS 1.3C HATCHED AREA MUST REMAIN CLEAR AND UNDISTURBED UNTIL END OF SCHOOL YEAR (MID-JUNE) 1.4 - BUILD DOAS CLOSET IN EXISTING LEVEL 01 BREEZEWAY (JUN-JUL) 1.5 - BUILD NEW PLAYGROUND & ADJACENT SITE WORK (JUN-JUL) PHASE 2: NEW CONSTRUCTION (APR 21 - JUL 22:16 MONTHS) 2.1 - GENERAL PHASE SETUP TASKS (MUST OCCUR PRIOR TO START OF SCHOOL) 2.1A INSTALL DUST PARTITIONS AND SAFETY BARRICADES (AT ALL LEVELS ADJ TO NEW WORK) 2.1 B ERECT TEMPORARY EGRESS STAIR 01 & CONSTRUCTION BARRIERS (WALLS & ROOF) FROM 1995 WING UPPER LEVEL. EXISTING EXTERIOR EGRESS STAIR AND PATH TO BE PROTECTED FROM NEW CONSTRUCTION & REMAIN OPERATIONAL UNTIL TEMP EGRESS STAIR 01 IS CONSTRUCTED. ERECT NEW TEMP EGRESS DOOR FROM EXIST LOWER LEVEL 2.1C MAINTAIN SAFE EGRESS PATH FROM EXISTING EGRESS DOORS AT SOUTH WALL OF GYM AT ALL TIMES. COORDINATE THIS PATH WITH EXIST SITE STAIRS AND NEW TEMPORARY EGRESS STAIR 01. 2.1 D ERECT TEMPORARY EGRESS STAIR 02 (WITH ROOF) AT EXIST AFTER -SCHOOL OFFICE. 2.1 E ERECT CONSTRUCTION BARRIERS ALONG ENTIRE LENGTH OF EGRESS PATH TO SIDEWALK. 2.2 - NEW CLASSROOM WING AND MOVEMENT ADDITION 2.2A DEMOLISH EXISTING 1995 ADDITION EXTERIOR EGRESS STAIR (ONCE TEMP EGRESS STAIR 01 IN PLACE & SAFE) 2.3 - NEW KITCHEN ADDITION 2.3A PROVIDE TEMPORARY ABOVE GROUND OIL TANK PRIOR TO THE REMOVAL OF THE EXISTING UNDERGROUND OIL TANK (SEE CIVIL AND MECH.) 2.313 HATCHED AREA MUST REMAIN CLEAR FOR ALL SCHOOL TRAFFIC DURING SCHOOL DAY) 2.4 - NEW WORK IN EXISTING BOILER ROOM (LEVEL 1) PHASE 3: SUMMER 1 RENOVATION (JUN 21 - JUL 21: 2 MONTHS 3.OA - INSTALL DUST PARTITIONS AND SAFETY BARRICADES 3.OB - EXIST CAFETERIA TO SERVE AS TEMP ADMIN DURING SUMMER RENO 3.1 -ADMIN SUITE RENOVATIONS 3.2 - LIBRARY EXPANSION (RENOVATION) PHASE 4: SUMMER 2 RENOVATION (JUN 22 - JUL 22; 2 MONTHS) DE -MOBILIZE CONTRACTOR TRAILERS 4.1 - LEVEL 01 & 02 EXIST CLASSROOM MECH AND ARCH WORK 4.2 - RENOVATE EXIST KITCHEN AS DINING EXPANSION AFTER OWNER REMOVES EXG. EQUIPMENT. 4.3 - FINAL ASPHALT TOP COAT (BUS LOOP AND ENTRY ROAD) 4.4 - PARKING LOT IMPROVEMENTS 4.5 - BUILD PROPOSED OUTDOOR BASKETBALL COURT & COMPLETE SIDEWALK CONNECTIONS TO TENNIS AND SCHOOL NETWORK 4.6 - REMOVE CONSTRUCTION BARRIERS & COMPLETE NEW COURTYARD AT TEMPORARY EGRESS LOCATIONS 4.7 - REMOVE TEMPORARY EGRESS COMPONENTS & RESTORE EXISTING CONSTRUCTION 1 A BETWEEN EXIST QUICK START TENNIS &MEADOW w U z w LL Y IFE-fl q U 0 GC SHALL P N T OU (2) DUMPSTER ICH TO RE ACCESS TO SCHO L STAFF Al TII PHASE 2 (ENTIRE PROJECT DURATION) OOo 0 0 0 0 \ 0 SIM 0 2.1B U MAINTAIN + PROTECT O THIS EXIST EGRESS PATH UNTIL 2.1 B COMPLETE A SEE VIL FOR SILT • FE CE QUIR • ` `� ALO TH DGE *sell % 2.2 s• % all •� STWHIP i PLA TINGS TO I 1 o PRO CTED AT OO � ad >' r... CONTRACTOR VEHICULAR ACCESS TO THIS � �......_ •... . AREA NOT PERMITTED DURING DROP-OFF I •.•:•:: PICK-UP TIMES; COORDINATE WITH OWNER "b / • E&S CONTROL & SWM ELEMENT (SEE CIVIL) / • • • SUPERINTENDENTS , 0 TRAILER O ______ ' ' ----- •-- -------------------- ------------------- • I b TEMPORARY HAUL ROAD L L PROPOSED PHASING SCHEDULE: 2021 2022 APR I MAY JUN JUL I AUG ISEP IOCT NCIVI DEC IJAN IFEB MAR APR MAY I JUN I JUL I AUG PHASE 1 APR'21-JUL'21 PHASE 2 APR'21-JUL'22 PHASE 3 JUN'21-JUL'21 PHASE 4 JUN '22 - JUL'22 NOTE: FOR ADDITIONAL INFORMATION AND DATE, SEE "SUPPLEMENTAL GENERAL CONDITIONS" OF THE PROJECT MANUAL. •��� ` LLTI ES • % V Ivx D O VMDO Architects vmdo.com 434.296.5684 200 E Market Street 2000 Pennsylvania Ave NW Ste 7000 Charlottesville, VA 22902 Washington, DC 20006 At emarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Ave, Crozet, VA 22932 VDOE Project Number 002-34-00-101 VMDO Proiect Number 1284 COS I TMCKHM Lie. No. 011680 of Fx* z/ Checked By KAT Drawn By BP, TJ ISSUES AND REVISIONS i • ••� NO. SUBMITTAL ••••.. „•� 1 SCHEMATIC DESIGN PRICING SET SEE CIVIL FOR SILT FENCE REQUIREMENTS 2 DESIGN DEVELOPMENT B LONG THIS EDGE 3 75% CONSTRUCTION DOCUMENTS 4 90% CONSTRUCTION DOCUMENTS 5 BID DOCUMENTS LEGEND O CONTRACTOR STAGING, STORAGE, & PARKING © CONSTRUCTION ENTRANCE N� PROPOSED CONSTRUCTION FENCE AREA AVAILABLE FOR CONTRACTOR (FOR EACH PHASE) AREA TO REMAIN CLEAR & UNOBSTRUCTED DURING SCHOOL DAYIYEAR ■ BUILDING ADDITION AREAS ■ BUILDING RENOVATION AREAS 1 TEMPORARY EGRESS ROUTES (TO BE PROTECTED FOR DURATION OF PHASE/PROJECT) CAR DROP-OFF I PICK-UP ROUTE BUS DROP-OFF I PICK-UP ROUTE PHASING DIAGRAMS - PHASES 1 & 2 G005 DATE 29 MAY 2020 04 SEP. 2020 20 NOV. 2020 18 DEC. 2020 09 FEB. 2021 G s PROPOSED PHASING PLAN: PHASE 1: SUMMER 1 SITEWORK (APR 21 - JUL 21: 4 MONTHS) INSTALL ALL SAFETY BARRICADES (SITEWORK) 1.1 - GENERAL PHASE SETUP TASKS 1.1A CONTRACTOR TRAILER AREA TO UTILIZE EXISTING GRAVEL LOT; EXPAND AS NECESSARY UP TO FIELD 1.1 B CONTRACTOR TO INSTALL GRAVEL ROAD FOR EMERGENCY ACCESS TO THE EAST SIDE OF THE PROPERTY TO SOCCER AND BALL FIELDS (NOT SHOWN). MAINTAIN CLEAR VEHICULAR PASSAGE AT ALL TIMES DURING THIS PHASE. 1.1C DEMOLISH PORTION OF EXIST WALLS TO CREATE TEMP EMERGENCY EGRESS DOORS FROM EXISTING SCHOOL (TO REMAIN UNTIL PHASE 4) (TYP. OF 2) 1.2 - DRILL WELLFIELD 1.3 - BUILD NEW BUS LOOP AND ROAD TO CROZET AVE. (PROVIDE INTERMEDIATE COURSE OF ASPHALT INITIALLY; FINAL COURSE IN PHASE 4) 1.3A INSTALL STORMWATER STRUCTURES AND PIPE 1.3B INSTALL CURBS 1.3C HATCHED AREA MUST REMAIN CLEAR AND UNDISTURBED UNTIL END OF SCHOOL YEAR(MIDJUNE) 1.4 - BUILD DOAS CLOSET IN EXISTING LEVEL 01 BREEZEWAY (JUN-JUL) PHASE 2: NEW CONSTRUCTION (APR 21 - JUL 22:16 MONTHS) 2.1 - GENERAL PHASE SETUP TASKS (MUST OCCUR PRIOR TO START OF SCHOOL) 2.1A INSTALL DUST PARTITIONS AND SAFETY BARRICADES (AT ALL LEVELS ADJ TO NEW WORK) 2.1 B ERECT TEMPORARY EGRESS STAIR 01 & CONSTRUCTION BARRIERS (WALLS & ROOF) FROM 1995 WING UPPER LEVEL. EXISTING EXTERIOR EGRESS STAIR AND PATH TO BE PROTECTED FROM NEW CONSTRUCTION & REMAIN OPERATIONAL UNTIL TEMP EGRESS STAIR 01 IS CONSTRUCTED. ERECT NEW TEMP EGRESS DOOR FROM EXIST LOWER LEVEL 2.1C MAINTAIN SAFE EGRESS PATH FROM EXISTING EGRESS DOORS AT SOUTH WALL OF GYM AT ALL TIMES. COORDINATE THIS PATH WITH EXIST SITE STAIRS AND NEW TEMPORARY EGRESS STAIR 01. 2.1 D ERECT TEMPORARY EGRESS STAIR 02 (WITH ROOF) AT EXIST AFTER -SCHOOL OFFICE. 2.1 E ERECT CONSTRUCTION BARRIERS ALONG ENTIRE LENGTH OF EGRESS PATH TO SIDEWALK. 2.2 - NEW CLASSROOM WING AND MOVEMENT ADDITION 2.2A DEMOLISH EXISTING 1995 ADDITION EXTERIOR EGRESS STAIR (ONCE TEMP EGRESS STAIR 01 IN PLACE & SAFE) 2.3 - NEW KITCHEN ADDITION 2.3A PROVIDE TEMPORARY ABOVE GROUND OIL TANK PRIOR TO THE REMOVAL OF THE EXISTING UNDERGROUND OIL TANK (SEE CIVIL AND MECH.) 2.313 HATCHED AREA MUST REMAIN CLEAR FOR ALL SCHOOL TRAFFIC DURING SCHOOL DAY) PHASE 3: SUMMER 1 RENOVATION (JUN 21 - JUL 21: 2 MONTHS 3.OA - INSTALL DUST PARTITIONS AND SAFETY BARRICADES 3.OB - EXIST CAFETERIA TO SERVE AS TEMP ADMIN DURING SUMMER RENO 3.1 -ADMIN SUITE RENOVATIONS 3.2 - LIBRARY EXPANSION (RENOVATION) PHASE 4: SUMMER 2 RENOVATION (JUN 22 - JUL 22: 2 MONTHS) DE -MOBILIZE CONTRACTOR TRAILERS 4.1 - LEVEL 01 & 02 EXIST CLASSROOM MECH AND ARCH WORK 4.2 - RENOVATE EXIST KITCHEN AS DINING EXPANSION AFTER OWNER REMOVES EXG. EQUIPMENT. 4.3 - FINAL ASPHALT TOP COAT (BUS LOOP AND ENTRY ROAD) 4.4 - PARKING LOT IMPROVEMENTS 4.5 - BUILD PROPOSED OUTDOOR BASKETBALL COURT & COMPLETE SIDEWALK CONNECTIONS TO TENNIS AND SCHOOL NETWORK 4.6 - REMOVE CONSTRUCTION BARRIERS & COMPLETE NEW COURTYARD AT TEMPORARY EGRESS LOCATIONS 4.7 - REMOVE TEMPORARY EGRESS COMPONENTS & RESTORE EXISTING CONSTRUCTION PROPOSED PHASING SCHEDULE: 2021 2022 APR I MAY I JUN JUL AUG I SEP OCT NOV I DEC I JAN FEB MAR I APR I MAY JUN JUL AUG PHASE 1 APR'21 - JUL'21 PHASE 2 APR'21 - JUL'22 PHASE 3 JUN'21-JUL'21 PHASE 4 JUN '22 - JUL'22 NOTE: FOR ADDITIONAL INFORMATION AND DATE, SEE "SUPPLEMENTAL GENERAL CONDITIONS" OF THE PROJECT MANUAL. LEGEND O CONTRACTOR STAGING, STORAGE, & PARKING © CONSTRUCTION ENTRANCE M� PROPOSED CONSTRUCTION FENCE AREA AVAILABLE FOR CONTRACTOR (FOR EACH PHASE) AREA TO REMAIN CLEAR & UNOBSTRUCTED DURING SCHOOL DAY/YEAR ■ BUILDING ADDITION AREAS ■ BUILDING RENOVATION AREAS 1 TEMPORARY EGRESS ROUTES (TO BE PROTECTED FOR DURATION OF PHASE/PROJECT) CAR DROP-OFF / PICK-UP ROUTE BUS DROP-OFF / PICK-UP ROUTE V Ivx D O VMDO Architects vmdo.com 434.296.5684 200 E Market Street 2000 Pennsylvania Ave NW Ste 7000 Charlottesville, VA 22902 Washington, DC 20006 bemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Ave, Crozet, VA 22932 VDOE Project Number VMDO Proiect Number C4 A.THACKER Lie. No. 011680 of Fx* Z/ 002-34-00-101 1284 Checked By KAT Drawn By BP, TJ ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 SCHEMATIC DESIGN PRICING SET 29 MAY 2020 2 DESIGN DEVELOPMENT 04 SEP. 2020 3 75% CONSTRUCTION DOCUMENTS 20 NOV. 2020 4 90% CONSTRUCTION DOCUMENTS 18 DEC. 2020 5 BID DOCUMENTS 09 FEB. 2021 PHASING DIAGRAMS - PHASES 3 & 4 G006 1.5 - BUILD NEW PLAYGROUND &ADJACENT SITE WORK (JUN-JUL) 2.4 - NEW WORK IN EXISTING BOILER ROOM (LEVEL 1)