Loading...
HomeMy WebLinkAboutWPO202000039 Plan - Revision 2020-12-07_ A x MHD I I 6' IORETEN IOIQ (6B BgfTO —l\ylE EXIST. PIPgTOi21 / I INLE/ / \ \ \ ` \ \ \ 6s R�PRAP OUTLE ROTECTION \ \ \ \ \ \\\ INV. IN'':RGP (N): I I / ELEVATION - 692- \ \ \ \ \ \ \ \ \ UU — 0. AVG DIA. RI P \— TIE EXISfi, RIPE fi0 RROP,yNL�fi�DPE:(W} : ; I I I J -? 6��� 685 \ " - - �-`� -_ -_ fiRACfiOR 0 COFIFIRM�L�OCA`TICN OF \ \ \ \ ^ ^ � \ \ \ INV. '4"': 8LD l I C ` \ \ ^ \ \ CL S AIINV. O':15"RCP:: 9 _ ' . ' .y EXISfi�E PRIOR TO 0ON8TRUCfi1QN� \ �\ \ \\� / / l/ I 2 (ZYP) \ \ \ \ \ \ \ \ \ \ ` \ Ely _ ` \ \ \\ WIDT1\i 2 = 6.1' \ \ \ \\ \ \ \ \ \ / \ 8"DEG �FSI�GTH = 8.0' 231 \ \ \ \\ \\ \ �� \� \\ \ �6`\ �`� \ \ `.cc 2 DE TH�1.0' 6'0 TIEEXIST. PIPE TO20b y / / PROP. MANHOLE. I I I ♦ / J / 691 / / / CONTRACTOR TO \ \ \ \ 60 \ \ \ ` \ \ o \ \ \\\ \ \ e \ \ \ \ \U\\\\\ \ \ I ul CONFIRM LOCATION I EMERGENCY O ll 90 6g 4 / _ OF EXIST. PIPE PRIOR OVERFLOW DRAIN \ \ \ \ \ \ \ \ \ \ \ (\r , \ \ \ \ a vc\ \ \ \ \ \ \ \ \ \ \ \ \ \\\ \\ \ \ \ / d I / / / \ / TO CONSTRUCTION. \ \ \ \ \ ��Ci \ \l \ \ \ lNv= s7 J I / TO DAYLIGHT \ \ I 232 / -/ - ' 6g2� / / TOWARDS \ \ \ \ \ \ \ \ \ 0 \ \ \ 2 \ \ \ \ \ \ I I III r ADJUST CONE SECTION \ TI XISai?.OF/ \ \ \ \ bs \ \ I I PLAYGROUND \ \ \ \ \ \LEAD TO RIeE VIA I \ \ \ \ \ \ \ \ I III I I \ I / t PUMPED = / / �/ . OF MANHOLE TOP TO OD _ \ \ \ \ \ "INSERTA-TEE" I \ \ \ \ \ \ \ \ \ \ \ I I I II I I I I 1 I r / P I I / / \ r ALIGN THE FRAME AND I \ \ \ \ \ \ 1 1 I I I I \ DI HARGE OF - '/ S - I / / / COVER WITHIN THE \ \ \ ` ! \ \ \ \ \ \ I I I I IN ENTAL / \ \ \ \ \ \ I I III III I P/ CONCRETE SIDEWAL I I STORM TER \ / / \ / 693�-693� ADJUST INTERNAL / , ' \ II I _THAT'M 69 - ' I STEPS ACCORD] LY. /- / \ TOP a .'aOE� &"q P=ssz.a3' / \ I ENTER VA 1 4 JoT-s3s.3s' Bor=sass9' � � \ \ \ \ TCHLI SEE S Tr \ I ^ o I I I \ TOP k9284' Vx PNYLD 6OL'C \\660 \\ \ \\ \ \ \\ \ \ \ \ \ 1\I 1 I It\ \\\\ \ M 807=690. \ I \ \ \ \ / ELEC. 0� b / INLET(TYP) \ }, ry,2 6" DE6 O O TOP=692.82' >_rjy`LJ' BOT=690.50' CIG N / / y UGP ADJUST INLET TOPPER SPOT ELEVATION PLAN SDINLET \1\ I I s El 1 1'0NYLOTOP=691.85' -1-\�� C PROPOSED I------- — �' MOVEMENT APPROXIMATE LOC / - I \ \ \ \ \ \ \\\ I \ ) I 4I' SOLID HDPE TO \ \ \ INV. OUT=68730'12"HDPE EX COMM SKETCHED v, - - - > I w \ / \ ELE ADDITION TRENCH DRAIN — — — — _ \ \ \ \ \ \ \ \ \ V \ \ 1 \ r - _ 'u I \�- IN BASED ON BEST \ co / / / I � - - / �-,lAS\4T\4\\\ TMP 56-64EAVAILABLE DATA r-- -COUNTY SCHOOL BOARD OF a \ \\'`O - 6' - - EXISTING CROZET / I I ! 'I \ t 1 \ ` m \ \ \ \,�696 Z I/ i96 - _ _ _ , ALBEMARLE COUNTY, VIRGIN/A 4" SOLID HDPE TO a I \ \\ \ 1 I\\\' \ S o) / t I / ELEMENTARY I I 1 I \ 1 / _ DB. 1044, PG. 498 TRENCH DRAIN I \ o m co / 6 �/ SCHOOL BUILDING DB. 1098, PG. 703 8" ACO K200 TRENCH DRAIN11 I\ \ J / I ADA RATED GRATE PROPOSED ZONED: RA (RURAL AREAS) ( ) 1 I \ \ Ern KITCHEN \ \ \ \ \ \ \ T r \ t t 9j ADDITION 1 1 4" HDPE / ��\�GQ/' % I / r\o I - - I (1%SLOPE MIN.) / 4r 9� / FFE- 702. v (3FT COVER MIN.) v (TY ) COVER MIN 1% SLOPE MIN). ` 1 11 1\ III'1 II \I l \ \\ \ I \\\\ / \ 1 \ \ \\ \\ \\\ 11 � \\ 1 0 I p. 6" HDPE ROOF LEADER (2 FT 15' WIOTH UN ERGROUND ) ( ) It—Ilk 40 �.9 1 1 11 II 1 I \\ 1 \ \ \\ \ \ \ \ DOWNSPOUT h I I \ 1\\ I UTILITY EASEMEN FOR VIRGIN I / / // I / ` \ - \ ,. I I I I I I 1 \ \\ \\ \\ \ \\\ 1 \ \ \\ \111I \ ELECTRICTWERCOMP NY •e PROPOSED 1 1 i ' OB. 1f01.P .310 /l , l / Z •>•, _ _ TIE EXISTING ` 704 I I I I 1 I \ \ \ \ \ \' \ \ \\ \ \ I \ \ Q DOWNSPOUT TO - CLASSROOM II I 1 U)� \ PROP. 4" PVC U ADDITION I 1 I I ` \ \ + I \ \ \ \ / yP� / II I I� // — _—— — — —_ —- 1--__----- m- — _ = 1 I 1 \ AP\P�QX AREASO r \ \ \ \\� 11 a od > } '` r 4" SOLID HDPE TO TIE TO PE V�,A I 1 I I 1 1 \ \ RE�EN yPLANT wHl s / .\ I 1 / I / /I ^ \\ l0 _ ^ WALLMNIC. 9- ` _ _ _ \ AN "INSERTA-TEE" / , I 11 I 1 I 1 \ \\ \\ 1 1 I \ 3 _ _10 _ - \ 4" ACO KS100 TRENCH'DRAIN I \ I \ 1 1 \ \ r 96� 9 / o \ 6 -_ ADA RATED GRAT€ 1 I I \ � 1 1 1 1\ / 703 "g9 ' � - � - \ v - _ 4" SOLID HDPE fO / 6+ \ \ 1 1 1 + aI I I = \ \ WALL I / �,9 / / / I / \� n, CONC. DIVERSION T \ 11 \\\ \-'^ I ,--702 I I ^ \�r69a _ -` \ \ /,/ r / 1 / / /l \\ 0 0 \I TtIMHL)7ss' a \ \ 1 •1\ \ \ 1 _ _ \ STORM PIPE 137 / / / / I � cn \ \ 1 \ 1 1 \ - - - I 6 4 \ ' 1/�( I I � A A A A A l� 7 _ -701 - - I ��\ \ 02 r�6'� b b � � . �. � / 1 1p0 / l0? 1 Via; S -D 8-"EC 8"DEC y6"DEC 8-DE I \ II I III I I ® • s99 \ 4" HDPE - ^o / \ ILO F : 687..75 3 700 I \ \ / L1 FFE: 693.42 / 1 \ z I \ rn \ \ \ I \ ' \ I / I I \ I I 11 I _- G,' � --� I —` 139 \ . \ \ � r / 1 102 j 1 1 \ I I \ I I I 1 I 9 I Y � � °j 1• , -a1- — 138 \ ` \ \ \ 6' TRAFFIC RATED o 0 I I \ \ \ INTO STOR \ \ : \ \ 1 1 (TY ) \ I- r TYP. 1� 1♦ / WITH INSERTA TE� � rn I SD CURB /NLItT W/ GRATE n° l I \ _ _ _ - ( ) • / - _ / - TO�(=696.02'(F/L) _ Iqq \ b ..\••. / I INl. OUT=6512.37' 15" RCP l I \ \ \ \ \ \ 1\ \ \ \ \ „— — .UGC_ 8, 12" --I 8„ '\ \ \\ \\ \ \ 1 `P 8 — 15' RCP X40 . \ 402 ` \ -- --- -- -- -- - I 40 1 \ t \ I \ \ I I I sD 406 681 I II 1 INV. O T=687 5' 15 l�2 P DEC .�:: �o 6+� I IC9 IX 401 rn \ INV. IN-687 7' 1 ' R P Q �: \ 48" MANHOLE DESIGNED _ A \\ \ \ \\ \\ o \ 106 \ \ \\ z I \ WITH STORMTECH SYSTEM E L Z REPLAC INLET TOP WITH / I ) \ VDOT MH-1 FRAME AND COVEF{o ,\oo ♦ 07 \ ssy \ - \ BY ADS (TYP) 69�, \ \ 1 1 \ N ) \ \ \ a \ \ \ \ m \ /\ I O o A I I 1 \ \61 4" \ Z 9g / GRAVEL �DJUST TO FINAL GRADE. \ I I 1 1 \ \ m \ \ ^\ 1 6 /' FILTER >C \ �00 ` \ 69 I: I I I I I \ \ oc� \UNDER I \ z/ I _ 8. \ (GYP STRIP S#1 ^\ \ I I I 683 \ \ \ CL NOUT \ \ \ \ I STO MTEC ARC PE \ \ \ nn,�, IIo\.AI I \ \\ \ TYP.699 O \ D TENT ON SYST \ / 132 1 ( \ \ \I- / WI H ISO TOR ROW 72" NHO E C ROL I I \ \ \\ \\ \ \ \ \ \ \ \ STRUCTUR WIT WEIR WALL I \ \\\ \\ \ FOOB BAY \ \ \\ \\ \ \I / \ IN P 151 r - - aNEIR \ ST.ABILIZA WALL Ty \ \ \ o \ 0 I 1p0 rn 1 8 I�/ a152 / \ L - \-- - _- ---- 3 �❑ - ----I — \ I - r 150 / / /' 1700 / 149 K I / _ -k74.5` 'NT SE 6 C I/ / I I 1 0 I \ \ ,6 �\ BI�RETLNTIO A Tl�2Q I 147 0- oO, 1 I I 148 BIORETENT-ON BOTI\QM \ \ \ \ \ \ \ ^ \ \ \ \ \ \ \\ \ ELEVATION = 680.50 \ \ \ \ \ \ \ \ \ \ \ \ CL U) _ _ ��/ _ITA 0153O 702 TI \\^\ ^ I I 702 ---703--- \� r _ _ 6"P/PE I I I ---_____ \-------------- 20'WATERLINE EASEMENT _ __- i I M I, INV=681.56' II I _ _ _ - _ -Oy _ \ FOR AL11EMARLE COUNTY' I P _ - - - t bd / / 68 1 T I I I I I I i - / \ _ \ - - ) _ _ _ / \ ' SERV/CEAUTHOR/TY \ - - - i - - - - - - - ' ' - - - / S 8"DES / \ 8„ DC - \ _ - _ ND NOT FND \ DB. \1,63, PG. 28 I / \ i / ' - 146 I �\ 6�DEC ' %s,. DEC / / T II 0- \ , \\ ------ \ I{/ I /'/ -_ �� //�i i /' -� ' /// / � �\ y�/� ,// \ ,'/ / j 501 500 - 1_ j , - y I 7` I 5 - - - 4 AP�PR� TREE - - I 703 / / / 1 y I_\o'er\ �° 1 I / / �69 i / i / / _i / I - - -=-- — GRIP-INE (TYP)- 'I 8"DEC 1 I 8„DEC UFO —UFO —, I - r -____ -_ 15"CMP - —Ei _ � 2" DEC Of=��$1 8 RAP U_TLET PROTECTIO/N APPROX. TREE � 0.5'AVG DIA. RIPRAP 704, VAR/ABLE WIDTH POLE LINE DRIPL/NE(TYP) IP' / o/ CLASS Al INV(IN)_S"9M EASEMENT FOR VIRGINIA t P ELECTRIC POWER COMPANY I c� DB. 1101, PG. 310 I I \\ \\\� LENGTH =10.0'Nlw I / \I\ I 'I I / � jr ' J 1 \ \ \ \� \ o 1 \ DEPTH = 1.0' __-- _-- // ill 705 T--- ---- - -� -UFO -s— - - - - - - - - - - - - - - -*Sam -------__�____----� \ _ UFO ANAGE4). - _ - - - - - - _ \ \ \ \ \ I \ / II // / / >- v \ \ � UFO �- Vol I — - -- 5 ---- ,OS - ---------- \\ \\� o I\ 1� I / // / 1 \/ I \ ��UFo % - —OHP� i--F7--�--- _�HO5 - \ �\\ `\ \\ I \ f I / \ \\ ® _-\UFO \ / � /ro—oH� ,/ - - - - - - - - - - - l05 =dHO RIPRAP OUTLET PROTECTION \ ^ I I \ // l� / 1 \ I \ \ \ UFO_-===-=v \ — 6HP '/ I �SAN� --- J DIA.RIPRAP \\ / % /� —/ I \. \ \ - -f8UF0--_-�-_ —� / /// /=oHP / O,g CLASS AI \ \ / / \ UFO—--=r--_,^ � / � / �-'OHP L - dy0 \ / / / / \ _\UFO _-- ' / OHP— / / WIDTH 2 = 9.25' d / / / / OF\ o / / ' p / / \ LENGTH =8.0' HO // �W_� \ � / , OH I 1 I I \ < \ �j - _ c C 1 > / I , P bH 0— -MHD 15" R -- fir- - - _ _ _ / / OH I INV. 1N=68526' 18"HDPE I^ \ / ion //OHP / / SO CURB INLET W/ MHD INV OUT=683.14' 18" HDPE TOP=/OHP—/ / INV. 1N=681.2 ' 186HDPE dH0 / ' / _ - I I ` \ ♦ of -IF`/ / / / / INV. OUT=681. 18' 18"HDPE If OH . .� - - - - _ _ -- SD-:EI:IR�JNLEt:INI TE - T / 1 I� / \ / / - - - - - _ _ - - - - - - - miv:4t!� 9a.1^ 5"MCP _ - - - -- -- � - - --- _ \ \ 1 / , MHD - - - - - _ ; . � . , - _ � ' � � � 70 - / TOP-69577' .40:: _ _ _ - INV. IN=691.71'15"RCP - _ - _ T:7:: - - \ \ - _ _ - I \ \ - INV OUT=691.62'18"HDPE ° STEEP SLOPES SD INLET (GRATE) SCALE I "=20' 09 - _ / _ (MANAGED) TOP=700.09' r - / - INV IN=694.04'15"RCP / INV OUT=693.94' 15" RCP 0 20' 401 / Y: a IEEE' MM MEN V)V\ D O VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com 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 Checked By Designed By Drawn By vj kD. Cichceld 'Z lie. No. 53741 12/1/26 A B. CICHOCKI K. ROESER K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN 8 WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 GRADING & DRAINAGE PLAN C5l ROCK \\ARMOR / �1 i I y \ 1 ROCKARM�R \ I\ 11 \\ I II I i I I I r I I 1\ I II I I cwi 11 ro c"mo I x I' I I I I \ 1 I I, 1 I F --- —— I I \ I I I I g89 \ I r I , \• \ , I I I \ I \ I II II I \ \ I \ m ro I6 I C6gp O 1 I I \ \ I I I it \\ \-� L I I /r I I I I I I I I I I1I I ' ' I I I I I \ I I I I I\ \\ \\ \ I I 1 I I I I I I I If II \ I II I \ m �(Oto �� BIO a I I \ I WEIR (' ` PLATE 10 ` V) c rn 0) \ \ \ coo � ` I I 315 \ I / I If I If 1 ' / I / / 1 I I I BLOCK RI TAINING WALL 1.9'6W) I f ail NOTES: 1. TOP OF THE 4" UNDERDRAIN WITH FILER SOCK LOCATED WITHIN THE PLAYGROUND EXTENTS TO BE INSTALLED BENEATH THE E �\ , I I I 1 I I MULCH LAYER. CONTRACTOR TO PROVIDE POSITIVE DRAINAGE \I WITHIN UNDERDRAIN PIPE TOWARDS SOLID HOPE OUTFALL. EXISTING SOCCER FIELD 1 \ — 1 `� 1 O \ \ \ \ I III I I I I \\ STEEP SLOPES I II I ,I: I: �\ \ \ `\ \ 1 I I I i , I (MANAGED) I I ' 1; ` ,, \ \ \ I I I I �I 1 I IIII � I m I \ I 1 \ \ \ \1 \ \ `V 1 TMP 56-64E \ \ \ I I I 11 II I \ 1 \ \ \� `\ \' \ m COUNTY SCHOOL BOARD OF I ALBEMARLE COUNTY, VIRGINIA DB. 1044, PG. 498 DB. 1098, PG, 703 RIPRAP OUTLET PROTECTION ZONED: RA RURAL AREAS \ \ I 0.5' AVG DIACLASBAl I I I \ \ 1 \ 1 I \ WIDTH 1 = 3.75 WIDTH 2=5.15' 4" SOLID POPE TO 4'� SOLID HOPE TO LENGTH = 7.0' TIE TO PIPE VIA AN TIE TO PIPE VIA AN DEPTH = 1.0 "INSURTA-TEE" "IN'SERTA-TEE" , I I \ \ 1 1 \ RETENTION FACILITY 3A \\ \ \ \ \ 1 A, 1 309 I I /\ _ 02 ' _ , , 308 / APPROX. TREE 15"DEC \ ` \ \\. \ \ ` Q 1"=20' \ \ \ \\ \ \ \ \\ \ \ \ \ 1 m \ I SWIM #2 / _ — — ♦ \ ` \ ` \ ` \ \\ \ 100 F OF 48" CMP� r- I / i��l - - -- -------- 'EIS---- - I 67g 677 \0`\ T TION SYSTEM _ 4"UMDERDRAIN v ___________ __\\\ IO \ \ STLLEP SL 7^ 1 I , - \ \ 1 I (MANAG 0.2 LOPE TO OUTLE ' I , j I/ / W/ FILTER SfJCK (TYP.) ♦♦ \ � 12"DE / a -. 304 \ \\ I CLEANOUT 1 C q�\R' 4" UN DRAIN / \ _ — — _ 5?: - - - - 6 , \ � \ \ \ ` \ � \ I \ \ \ (TYP.) I / ® \ // — 1 � � � .SLQPES %8 � � \ o \\ � \ /' II / / 15" (i'/' I 11 ♦♦ \ �'ii - -- -_ ----- \— _ MANA 6j9 \`\ \ \\ \ `\ � \\ \\ \ \ II ' \\\\\ \\ \ 715I _ _ 6 \ // 66,Q` ' / 'S'iE�P SLOPE , \ ` \ \ \ \ \ ` ____�_83 _ � t� 4"A KS100TRENCH 8" DEC (MANAGED) / GAME / 1 O / 4" SOLID 1 PIE_ / 1 KRA GRATE) _ ♦ \ If \ BIORETENTION BOTTOM` C Rac 316 \ I / I I ELEVATION = 683.50 C � I ` I 1 ♦ � a 1 1 \ � \ \ ` \ \ \\ \ ` I � I 1 IV / 1 \ M / 's8 \\ /„ I - I- �---C/ / ----------- \ If 4 UNDERD IN r / / �"U 11/DERDI�AIN I 1 \ \ \ \ \ \ I I c - 'x { I f l: J/ 1 /I ' I I I 1 \\ I \ � ,' /' I / ♦ 1 Ln P<' i - -- --VV/RLTERS - - I \ � W/FILTER SOCK � ♦ I\, 1 `\ \ \ `\ b \ \\ \ `\ \\\ \ I TYP. P. �. \ 0"DE0 \ \ \ If 1 i / TIE EXIST. ST RM / b \ \ \STEEP SLOPES - :,III I:I;:�p%, / \ \ \ 1 /I �` / �� /212 PIPE TOSTRUCT E I // \/ 1 �� I \\ \ \\ \ \\ \\ \ \ \ \ \ \\\ (CRITICAL SLOPES) - f :: : { :/:: : i FrVID MH-1 1 j : FFji4 E AN[ CiFRATt._ J / ��� ` ! \ \ _ 20' SA rARY SEWER EASEMENT I (I Y ' BI TION FACILITY 2C \ \ \ \ \ \ � �`\ - - - _ OR AL �IARLE COUNTY \ \ \ \ \ \\ \ 1 \ 686 - - - , _ - ` 68 —raw Rvic Aur RIrY \ \ ` \ \ It D . 976, PG. 96e RIPRAP \ \ \ \ \\ / P� I'--\ — — r- __�6$S, `� ��6j� \ \ \ \\ \ \ \ U1 \ \`\11'I / S .4 RATION ON 1 P OF NC. SLAB % y 6 , \ _ _ c 0 \ I \ \ \ \ \ \ \ m \ \ o .c as - _ 687 r _ \ a \ \ \ 1 \ \ l _ 669 690 \ - GABION s / / 688 \ ` \ ` \\ / I I I I s97 FORE l s87 / 5P g0 689 1 224 - \ \ \ \ \ \ ` \ . \ \U X0 0 ODENT GUARD / \ \ \ \ �� \ / O O , \ \ \ \\ \ \ \ \ \ \ MATCH INE - SEESHEET 5.0 \ \ \ MHD:::.�BIORETENJIOIQ \ \ \ JIE EXIST. PIPE TO : TOP-66fR33' :: \ BOTTOM - - \ \ \ 26 \ \ \ lNV lN= &3.56'95'':RGR(N): I I ( /'� , / ELEV¢\TIO / INLET.- .- 692- \ ST \O \ \` \ \\\ s\\ \ R�PRAPOUTLE ROTECTIOtJ\ \\\\\ 6\h N I 21 I \ \ I \ - / TIE EXI . PIPET RROP.\INLETt ` \ ` 0. ' AVG DIA. RIP P INV. 1N=6 3.:40' 12'°Ft©P.E:(khf :: I - - - - 6'q 68 \ / ^ - - _ �— - -�' , \ \ \ \ \ I + - �Q'-- 90 5 .� - ` TRACT012 \�0 COFIFIRM LOCATION OF ` \ \ CIS Al \ VI, P / - EXIS E PRIOR TO CONSTRZJCTIQN \ - - _ 678 \\ \ INV. M= 684:13; 4":(BLD l - \ C011l \ \ \ \ \ \ \ \ \ INV. 0-683:40' 15"RCP / I 92 _ _ J \ (,TYP / \ \ \ \ ` \ \ \ \ _ 61-9 \ \ WIDT\A 2 = 6.1' \ LF�NGTH = 8.0, IL4 1.01 TIE EXIST. PIPE PROP. MANHOLE. CONTRACTOR TO \ \ a T \ \ \ s \ CONFIRM LOCATION EMERGENCY ` \ s90 \ \ \ �8s \ \\ \ \ I \ \ \ OF EXIST. PIPE PRIOR OVERFLOW DRAIN \ \ ` \ \ \ \ \ \ \ \ \ a — / / / J TO CONSTRUCTION. TO DAYLIGHT \ \ \ \l \ \ \ INv= \ 84' \ 0 \ \ \ \ \ \ \ \ \ \ I II - - TOWARDS \ T16AXISt'. OF \ \ \ \ \ 232 / ✓ 92��� / ADJUST CONE SECTION \ ` - ` \ \ _ s \ \ LEAD R TO E VIA \ I I G / \ OF MANHOLE TOP TO PLAYGROUND PUMPED y OD \ \ "INSI<RTA-TqE" \ \ \ \ \ \ \ I _ _ / W / / \ / ALIGN THE FRAME AND r \ \ \ \ \ DI IN ARENTAL ! —/ COVER WITHIN THE < y \ \ \\ \ \ `\\ I II Ip�E / \ \ \ \ I 1 I \ \ \ ' ' CONCRETE SIDEWALK II d � \ \ \ \ ®\ \ \ ® i I I ` \ � \ \ \ I I, `STORM T ` , a 1 693��693—' ADJUST INTERNAL , ' \ j �rw ` \ \ \ ` \ \ \ \ \ \\ 11 d I of I 1140' c I / THAT s \— \ TOPs89d'WEC fi"Q P=69283' I ( I /E`f�TERVA�l�,4941 'I' I STEPS ACCORDI LY. / / for=sas.e9, Bor=sas.90 V )V\ I ) O VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com 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 "M Checked By Designed By Drawn By kD. Cichocld 'Z lie. No. 53741 12/i/26 A B. CICHOCKI K. ROESER K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN 8 WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 GRADING & DRAINAGE PLAN C5.A DEC 782\Z\ R743MHD 92.8692.8 689 Y 67 8' \690.28GQ \[ \ \ \ \ INV. lN= 83.6' 95'':ll P (N). 'i' < / �' - 692- \ \ \ \ \ \ \ 677.58' \ \ \ \ \ \\ O m INV. 1N=6 3.:40' 11'`.11©FE:iw% I I I - - - - - OQ -I// - - 6q0 �/ / _ '� \ \ \ \ \ \ ` \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ IV INV. N 684,13'4":(8LD):: / I I 6 J / / \ y \ \ \ - 6jg \\ \ \ \ \ \ \ \\\ \ \ INV. 0-683:40' 15': RCP:. 9� _ 6a9 q4' / i \' _ ' . ® \� \ \ \ \ \ \ _ \ \ 8"DEG \mot \ \\ \\ \\ �\ \ �\ \\ ��\ \ \�\ \ 6jg 677. \ 7.4T \o\ \ \ \ \ \\ \\�\\\\ / 690.55' / \ / \ \ \ \ \ \ \ GND \ fG 693.02' 5. f / I�/ \ \ \ \ \ \ \\ INV. s\92 / / \ \ \ \ \ \ 12 DEC I _ TC TC 692.99' 1 I b ` 11 694]i / \ 693co 693-r / ' ' \ 70P.92.'9®E�(' t fi" Q P=69283' 1 \ . \ / \ \ \ \ \ \ \ \ \ \ \ \ \ \ 11 I I� o I I II I I I Q /� / \ \ \ \ to I I N 9st T 1 693.06' / 90T_68989' NOT=689.90' \ \ \ \ CHLI SEES C \ \ \ I co I \ / I mm 693.�1' / roP �sz.8a' 6" DE'C \ \ \ \ l \ TO PC\ II 'ELEC. Oyu 3'16oY=eso OLET(TYP) \\\ \ \\\ \\ \\ \ \ / 694.38' 1'"n''S O roP=ssz.8z' I / / / 6" DECK / 1694 \ _ BOT-690.5o' \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ O VG FFE=680.75' ' 693.57' ss3.1T 1p ``� ' \ \ \ \ \\ \\ \\ \ \ \\\\\ \ \ \ \\� \\I 111 \ 11\\� �\\\\ \\\ \\ m UGP- / 680.58' \ s80.4 ' \ \ \ \ \ \ \ \\\ / TIC P� SD INLET _ ) PROPOSED - - - - - _ \\ \ \ \ 1 \ \ \ \ \ / © I 1'0"NYLOTOP=691.85' / APPROXIMATE LOC I \ / _� i - - - - - - - - _ \ \ \ \ \ \ \\ \\\ / ssss ' // MOVEMENT INV OUT=68730' 12"HOPE 1 \ \ ADDITION - - _ _ \ \ \ V EX COMM SKETCHED / v, , - - - ELE n - - - _ - \ \ \ \ \ \ \ ` 1 \ / I / t \FFE=693.42' FFE> 93.42 FFE=693.42' \ \ \ \ \ \\ b _ - _ \ \ Y\\ \ IN BASED ON BEST / - - - +- ' \ \ z \ \ 1 \ \ / 693.42' FFE=693.42' \I \\ \ \\ \ \ \ N / \\ I \\\ h AVAILABLE DATA 0 96.19' I _ - TMP 56-64E 694.50' Ts COUNTY SCHOOL BOARD OF Tw \ 680. \ \/ 696 Z 9G / 7< - - - EXISTING CROZET ALBEMARLECOUNTY, VIRGIN/A 692.32' 693.32' \1 \ \ \\ z ,0) / f r / / , ' - , - - -� ELEMENTARY Ts I I I I 1 1 \ \ "� 1 6 / / _ DB. 1044, PG. 498 693.32 ssa.ar 1 I \ \ \ \ \ \ 1 / I 692.32' 692.54' BW I \ / tO SCHOOL BUILDING DB. 1098, PG. 703 ) gW BS 693.42' 1 1 \ \ �\ \ \ \ I I I \ PROPOSED i - ZONED: RA RURAL AREAS 693.32' \ o \ \ \ / I I \�I rn / / I 6 _ _ KITCHEN 693.93' ... . . 694 / I Tw -r, t I 8j / ADDITION 694.82' Jew gs ssas2 TW 69 .32' 692.32' gyy 694.81' 692.33' m 1 II II I / 9P1 702. \I \ / 6981 / TC I \ \ 693.42' TC / TW I I y l I I A 1 A A \ \ \ A 15'WIDTH UN ERGROUND / l / / / 699.44", s 92.75' 694.82' 1 I 1 \ v \ \ \ \ \ 1 ssa.os' ew 1 UTILITYEASEMEN FOR VIRGIN I I/ / // TIC / ` _ TW 693.03' \13W BW I 1 I I 1 I I \ \ \ \ \' \ \ 1 \ \ \\ 1 1 \ 1 ELECTRIC PBOWERCOMP NY / a 704 694.53' 692.40 693.32' PROPOSED \\ \ \ \ ' DB. 1101, P�3f0 /l / EP Z °°°, 98.13 - - // 697.62' /Q _ Tw gW CLASSROOM 11 I I I \ \ \ \ \\ \ \ \ 1 \\ BW 693.32' \ \ \ / / I gW FF 702.35' - 695.05' 695.0 AP\PRQ�. AREAS d I \ \ \\ \ TW I _� - - - - - - - _ _ Ob - - _ - - - - - - > _ ,` 703.62' 69 BS9' _ 93.�5 _ \ Tw ss4ss' ADDITION / 1 I I II 1 I \ \ REC\E�A1' �'-PLANT WHIPS 699.18' o o 1 I \ 777,,���\\\ I \ \ gS 702. �IIS' 702.63' \ %3 - 1 0 \ - - 695.15' 95.03'\\\ _I f ° \ wA«' 3- 703.54' 6935 5' T W 694.81' I 1 I 1 1 \ \ 1 1 1 \ 699.19'' G / BS 702.55' \ 1.5'(W) _ - _ �1 - 694.81' TS 700.85' "J / \ r TS 6g6, _ _ 90. \ CO \ / 703.10' Tw - _ 693.42' ' / I I cp \\ 1 1 1 1 1 \ TS \ 703 ., 9 - - T \ / 1 1 1 1 I I 701.1 T 702.33' I / / 697.5T 6 �`/.76� 6�J7:67� \ / / \ CONIC. DIVERSION a FFE-,02.35' 702.35' \ I \ n I I \ wacL m 693.41' / I I > 1 1 07 _ -701 - BS \� _ \ _ I .-,-6 _ 689:44'� BS / / / ' �/ / I \ �I ,".� \ \ \ 1 \ \ \\ _ \ BW / TC -702 BS I 98 :697�i7i' / I. � \ � \ \ \ 693.38' // �I \ 699.71' TW - iLV I o�,\ �Z, _ \ r / / 1 \ I T0�=67796' 11 1 I I _I \ j / 701.33' j / ,� 701.22' 693.38' 1 00 702.35' 702.35' `02 702.11' , : �. \ HP 1 / 701.04' 698.18' \ � 6 3.42' IfrFE=693.42' I \ \ \ \ \ I I 1 4I I I I f 696.87' Q ° . - / 1 8= EC 8^DEC �8" DEC 8"DE \ g97.29' .� \ \ l r / I I I \ \ \ 1 `` I I \ 1597.�T I I l E 6' BW BW \ I \ 702.08' 702.15' 702.22' / / O^ / TC \ 696.9T \ \ r �� \ 697.6� 99 699.56' 700.66' \ „ 702.10' / .� 1 698.25' / \ ; \ r�'. \ �, I I V I I v EP / - 700 v LO F : 68 75 / ' °°° °° ' golog\ \ / L1 FFIE: 693.42 I a \ I I I 697.II ' 701.64' I \ 697.81' \ \ I 1- -I \ RIM \ \ I i m I \ I I I II I 6y� �9 -� '_ BW. .a9, EP EP ,� / -N- 693.4.4 \, \ I i p = 0 0 0 �0 697.31' 6 8�\ 701.54' 701.66' 0 0 RIM W - _ _-. W W - 0_ �o G96.a7' \ \ \ \ \ I I I \ TC _� - -�- W W - I P I TC - / 96.75' r� TS • . ' . \ :\ : \ I \ \ \ \ \ \\ I TC O 698.16' rn \ - 699.22' / cp- 696.88' \ ' ',: • : \ : '\ \ . I / _ ' \ \ \ \ \ \ \ \ \ \ I SD CURB /NLI ET W/GRATE I 697.45' I _ _o _ IN . OU7=6.3T 15"RCP I l I _ _ 4 b b b \ \ \ \ \ � „� b � ryry-�,Syq�t, _ _ _ _ �UG " UGP UGP �o - �l C • >. C . 6. 0 6�0 5' \ \ \ \ \ \ UGP _TC s97. 2 sss.os' \ \ \ I/ \ 697.9T -UGP 3 - _ �1 _ � - - - �_ �>_- �_ �_ 8" _ ---15' RCP- -�/- - \- -- -- ------ - --- ---- I �- \ .5s'\ '\. �: \ � \ \ \ \ \ \\ \ \\ \\ -G -- --- -- --- -- --� -- --- - -- --- -- --- 5 -- --- BW. 'ht' m l / 0 / I / \ 1 RC 6s2 \ \ 681 \ \ \ V \ SD CURB lNL T W/ M D �, ' \ \ \ 'z \ \ TC t / /' - - - - - - _ \ -696. 8' b TC \ I 8 DD,EC 696.9 61 \ \ 68 \ g 6 8.67' I ` I \ \ INV 1N=687. 7' 1 R P S,Ii.r' TC \ 699.22' 0 , ��� I _ INV O T=687. 5' >5 R\ P 696 80' 6� �� \ \ \ 2 EP \ \ \ \ \ \ \ \ \ \ \ \ I/ / O I 1 \ 6 O I \ \ ` - _ TC a"' 693.0 ' n \ c0 I I SEE DETAIL THIS\SHEET 696.86'� \ E \ L TC ^00 609` 698.98' TC 199.00' M / \ 00 \ 6y /¢ I r\\ 'p TIC 697.78 I 1 / TC T I \ B\ TC 1 I I I \ 1 / / 699.14' 6 8.88' I � I p 697.510 I 1 \683 I II O \ \\\ \\� TC /- 695.28'I, 9 \ / 699 TC \ / I I I \ \ \ \ \ \ \ \ sss. r I � I \ \ ss .as' I I I I I \ \ TC TIC / / TC L \ _� -� \ TC \ \ ` / / O I 1 I I \ \ \ \ \ \ \ 699.9O. / 701.15' 702.32' i U F' \ _ �UGP\ 700.32' / / l I I \ \ \ \ \ \ \ \ \ \ \ \ \\ \ 683.78' \ I EP 7,0 51' ,100 TC � � - 702.1 T " I _ - \ / I cp I I \ CL 700.19' \- - - 70 -\ - - - - - - 702.41' TC - - - - - 1= - \ - - - 697.22'-rC co I ICL TC \ \ \ \ O � 699.80' 700.33' T 702.4�% C / -{-- � -r _T \ \ 700.93\ 700.7T /e 700 TC / 03.�8 I 702.42' / / I 698 03' / / / / I I T D \ \ \ \ \ \ \ l l(.=i574.5"`', TC / / ---l- 1 I \ \ k„P 700.65' I TC / / / I 1 1 I P \ N \ (OPEN POND I I� _ I I I I \ 700.65' \ 902 TC ' ) 'FRONT SETBACK TO / I I I I 61 5.51'j I I 684.1 \ \ \ \ \ \ \ \ \ \ \\ I 702.51' / 697.99' / I I I 1 I \ \ �6' \ \ \ \ \ \J2.74' I I/,, Ix I---- ,\`�01 �p1 - / I I �I� o ca°j� I 701 73' 701.53' / ' Tc\ TC 70�86' 1 \ \ \ \ I / / I I - ` ° - ' 74184' TC I I I \ TC / 701.95' I �701 aa' TC-".'_ _ _ ±7FF OT SET ACK / TcI 7oosal/ TC _TC -`O�O 702 01.w702.05' 17 1L9rc T 700.72' / / / TC'-- - C __ � TC / 696.D6' /� / I / 1 �. 702 - 702.13'_ _ - - - - - \ - 1 702.80' \ 1 O / / / / \ / / / / / / / T I I -_ -\ - -- TC \� \\ _ / / - 703- TC t\ / / / / \ �7 \ 6" PIPE I I _ J _ _ _ - - - - - - _ - _ _ 20'WATERLINEEASEMENT 1 r - _ _ - - 700.59' ( 1/ / I i 1 \ z I TC p-702.44'- I 701.11' / UGP ' / b �' ' / S.AJ' 6 ' - _ _ II 702.08' - �- - FOR AL9'EMARLE COUNTY _ b INV=681.56' \ � \ ' SERVICEAUTHORITY \ I / 698.91' _ _ - ' ' - ' TIC / / /r / / / / 8"DEP 86 \ 8"D�C \ OPP. END NOT FND_ I - og \ _ DB. \I 163, PG. 28 - - _ �696.61' _ - ' / ' / ' EC / / EP / i _ _ /\ 6�D�C D / / �\� \\, ,I II/ \ 700.18'%g5,� ,,'' __��AP RCX. TREE// 686.0� /__ = \ _ - y O I 4 1 I TC / i6 _ - _ - ORIPLINE TYP. II I I I - - \ 8' DEC ' I _ O - 700_28' FO 69 / - - - - 8"DEC 1 -UFO -UFO �1 T / ® / - 15"CMP _ ' i - _ ' � � ' _ _ ' + � � _ _ _ _ _ _ _ _ ____ _ _ - - Co - - - - - - - - - - - _ - - 9 12"DEC / _ �_ \ / / I I o0 /TC / r -INV- (BUF)=694�>1 ' .-- / _ _'�� � �1 -j - - TC / 699.84' / Ir / '_ �_ / I 1 APPROX. TREE / / / / /l01.6V I i - ' �- I ¢ \ / 1 DRIPLINE (TYP.) I I 15"C;X / coo/ ' - , �- - _ \ \ \ _ EP I co II I \ I// / 704- VARIABLE WIDTH POLE LINE __-- \ \ \ \ \ EX EASEMENT FOR VIRGIN/A o \ / / INV (lN%=@98. U�t: EP 15 MP - I -II \ - \ \ E)( \ 686.82' \ \ 684.66' / IELECTRIC POWER COMPANY / / / / / 700� _� = I I \ \ \ \ \ \ 685.97' \ r I\ I I I O 'TC OC. 1101, PG. 310 II \ - - - _ I \I\ II 705.12' 705.00' I �r /// \ maim 705 TC / ' //� / i' \ I \ I �\ \ \ \ \ \ �\ �• \ I ____-� �I TC UFO\ 05. O Z I� 93'\ EP -.� _ _ - 'o� I�� \ )_ \I \ \ I _- 1y UFO _ _ _ EEPE3' _ _ _ - _ - _ - - �= - - - - - - - - - - - - - - - - \ °, --_---- -'1 \ \ \ \ \ 7 _ ' : J-.ANAGED�. - - - - - - \ \ \ \ \ \ / II I / / / / / / / \ \ UFO1- \ --- _Noma --1 - - _-- ---- �OS- _ \ �\ , \ / .UFO�oom OHP� ---- _ -- -- dH5_ T05 -------------\ �\\ �� \\ 1 \ I = I\I--1---- - - 70 =dHO \\_UFO h c EX 1 I / woo/ / /' df]Ba.aT \\ 1 I / /' -/ I / \� \ \ _ -fiSUFO-1_===----1 _ �� / �OHP� OS\ \_\\UFO - T wwi/ EX 705.02' HO / / / - _\-UFO _ \ �UF� / / \ /OHP� OH ;. c 1 r � I oHP :S0.CL47HlNLEWJ TE - _ E9 GVN - - _ - _ - - - --- - - - - _ 77 _s, \ \ ' / Illy - _ _ .: - \ \ 1 / MHD - - TOP=695.77' - _ _ .710 �o \ \ \ \ - - - - _ / / INV 1N=691.71'15"RCP _ _ _ _ INV OUT=691.62'18"HOPE o o SD INLET (GRATE) SCALE 1 "=20' 09 - - - / ' _ STEEP SLOPES MANAGED TOP=700.09' r _ , - _ ( ) INV IN=694.04' 15"RCP / INV. OUT=693.94' 15"RCP 0 20' 40' ADA GRADING DETAIL b ALE: 1" = 10' V )V\ I ) O VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com 41000 s 4* 41' 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 Checked By Designed By Drawn By vj kD. Cichocld Z lie. No. 53741 12/1/26 A B. CICHOCKI K. ROESER K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN 8 WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 GRADING SPOT SHOTS PLAN C5n2 ROCK \\ARMOR , �\ I i \ I v I i \ \ \ \ I ROCKARM�R \ \\ 11 \\ I \ II 1 I I I I I I I I I I r I I I I I I 1\ I II I I cwi I \ I 1 I I, ro cmo ' x I I I \ \ 1 I I I11 I I I { \ 1 I / \ 1 I I I \ �- ----- -- I I \ \ I I I II II \I I I I II I I I I 1 / / 688.67' 1 689^OSt ` 688-73- \\ I I I I ' 689.37' I\ I 1 I \ o I I \ m 00 000 roo\ I\S I I 690 689.85' O 1 0 �01 1 \ I I I +\ 15' 689.I ` I I I I /r ` I 689.67' \ \ 89.62' \\ 6 . 2' I 689.95' I 690.45' \ I l \ \ I I 690.4 I I I \ I I 1 I I I I 90.62' I G 0.6 ' \ \\ \ 6TIC 9 \ \ 1 \ \ I I /Co to LO d00 00m 1 �' \ \ 100 TIC I 1 I Q00 '0 � toio 11 It \ 1 1 I I I TIC \ \ , 690.4?' X 6 9.87' 699.00, s 688.92' I I 309 / \ \1 � 688RIM 1 \ cD690 1.85' , 1 I I / 680.91' APPROX TREE I TC 1 TC D / 318 , I I 690.40' , 689.83' , , I1 / /I If If I 1 / IN 1 / /, / , / /'/ If I / / / If BLOCK R< TAINING WALL 1.9' 6W) ' �::1;1;:1: EXISTING SOCCER FIELD I: ;l: ; ::..I \ 1'i' \ Qj \\ STEEP SLOPES I II I ,I: I: \ \ \ \ \ \ 1 I (MANAGED) I m I \ I I I \ \ \1 \ \1 \ \ \1 \ \ \\ \\ 1 1tn TMP 56-64E \ I I I I I \\ 1 \ COUNTY SCHOOL BOARD OF ALBEMARLE COUNTY, VIRGINIA 1 DB. 1044, PG. 498 DB. 1098, PG. 703 ZONED: RA (RURAL AREAS) \ \ 1 \ 1 1 / IM BS . /T9.7v / �' 303 679t7a` 679'6 675.04' 674.94' 15"DEC \ ` \ \\ \ \ I Q 1"=20' BS 1 \ \ 674.05' \� \\ \\` \�\\\\\ 11 m 679.93' I I==p\ 677 \ \ \ I STLLEP SL PEtS i I 1 I - �81.80' \ TS TS / 680:.67g, \ \ I (MANAG I / / / • \ 681.78' _ - ' • \ \\ I I I I I O / / 681.90' i ` \ 12" DE 681.93' \a: .. ' � � : . _ _ _ _ \ rn \ \ \ \ -.SLOPES %8 \ o \\ \ ; \ , \fZ8z.56' I � � 681.29' MANA � \ \ 673.19' \ \ � 0 8' / 1 / I I \ � -- 2;1T� -- 9 \ \ •:;... I / /' _ \ I I , / / \\ , / 6$3` - / // //1 ' _$7E�PSLOPES \ / / \\ \\ + \ \ 8 DEC \� `\ \ II III \\\\ \\ \11 1 m --- l ' 683.55' 1 GAME \681. II // (ANAG J 1.18 _ 1 / RAC 2�'\ \ \ \ \ 678'1` 15OCs� / \♦�\> C681.08' coo I \ \ � �\ \ \\ \\ \\ \\ `� \\ \ III 11 \ I I/ � / I \ \ �/� \ a \ I \ \ 1 \ \ 1 1 -------------- --- - 1 \ \ \ 1 6�471' - , /i' � 6 1 Ir / / i / i Il 11 / \ ♦ L _ I I I I \ \ \ s` \ \ \ \ \ . \ \\\ I N 684..161' \ / fi84.23' I / \ yP��-f -/ ItIf \ \ \\ /I __- J / / ♦♦ / 683.32' STEEP IFSLOPES - : F : \ ��, / \ CRITICAL SLOPES - 'III !.: . --- 683.21' 6811.13 / // - - ♦ 10"DEC RIM - - 13 21 6 - -�- -�� \ I 6✓l0.69' 683.27' \ ---t- _ ---- iS9.96, +\ \ \ \ \ \ \\ \ I m 1 1 I 1 1 ��` \ c\ 685..56' 689.51' .\ `\._ 1 "'SA TARPSEWER EASEMENT \\ \\ \\ \\\\1\ COUNTY \ \ \ \ \ \ \ \ \ \ \ \ \ \ 1 \ - _ _ L BS _ - - 6$ �` -�0 1 1 \\ ` RV/AUT RITY \ \ \ \ \ \\ \ \ HP ` \��\ _ / L� 68 - 6 ?\ RIM �♦ 680.45' I \ \ I D .976, PG. 96e I� ` si9� 689.35' .END / /- 85.54' - - 685.5;3%683' r- - TS - ' / - \ 6. 43`�� 680.69 ♦\ I \ \ I \ I \O \ 675.91' \ ` \ \ ++ cr f: l I \S \ \ UND / .59' TS - - '- = 6 \ \ ♦ 680.29' \ \ , / say. 9' \ \ / 8$. 6, . \ ♦ \ \ \ \ \ \ \ \\1 1\ _ \ , saa.zs'/ v / .66�se - - __ - _ i \ ♦_•� I I\ f� \ \ \ \ \ ` �cn \ \1\1 \1 I I: 689.3 856.60' �85.59 ' _ - - - 687.8s' - - \ \ \ I C \ s7 .81, _Ts - s ^ o� / /' 887.5�' _ - 689 23 / / \ \ \ \ \\1 I I I I 689.40' ' 688 BS - - , 690 sso3a: ` \ \ \ s$ s' sazzo' / / ssa.o7' - � \ / I l 687.20' 690.28' . \ , \ \ \ \ \ \\\ \ g0 689 ---^ 0 1 690.48' ^ i"-TS \ ` ` O 678.833'�, 1 \ \\6$ / \ 688/26' �Bs69 -691 690.28' L ' ` \ \ ` ` `\ `�� ' V \`\ \ \ MATCH INE-SE&SHEET 5.2 l I ' / \ 12'tDEC \ \ \ 678.02' 6R7.43 ' 1 � 690.28' \ :l1tIHD I 692.8 6 692.8 ' \ \ ` \ _ - - , - \ �� \ \ \ \ ` + s7a.oa' \\ 2 \ \ \ \ \ \ \ \ lNV lN= 53.56' 95"':RGR (N): I I I _ ' ' C / // _ 692- \ \ \ \ \ \ ` 677.58' INV. 1N=6 3.:40' 12'°HDP.E:(Wh :: I , 69�9 46' �- , \ \ \ \ \ \ \ / � I \ � \ � \ ` INV. 0-683:40' 15"RCP I 692 - i / 689 4 i /� \ t - \� ` \ \ \ \ ` \ \ ` \ ` \ ` N. \ ` $677. \ ` / / yR / I/ , I X23$�- /i// / \ j7 8"DEG.\ \ 6�9-\ ` 7.47\\0\ I / � 6s1.TT �+- 55'/ / 231GND \ 691.y' / - 690.55' / ' / ' 693.02'69, cal. M / 9p 6`9d f vc`\`� ` \ \\v\\\ \\\ I INV.-67 84' \ � \ + \ I \ , / • \ \ Zbs ( \ \ ` , + \ I I ,III I I 12"D C It ` \ ` \ \ II/ 69z.50' 694\.7�2_' 6g3TIC 692.99- ® ��693-r -- ' \ \ \ \ \\ \ \ \\ \\ \ `\ \\\ \\ 1 II I I II ^I I�'�1pl(\E 1•'=20'� 40' \ \cTOP=09d6E=69283' 93.06' T=689.89' T=689.966 V )V\ I ) O VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com 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 Client Project Number TBD VMDO Project Number 1284 Checked By Designed By Drawn By kD. Cichocld Z lie. No. 53741 12/i/26 A B. CICHOCKI K. ROESER K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN 8 WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 GRADING SPOT SHOTS PLAN C53 X \ s a \ /♦ XDEC MHD 8g / \ \ 2, TOH P©6P:$E9:(3W3 INVIN )' 'O L1/ ♦ i/I 0-.6 9.I 1 _ .- \-. �\ ° -- ��_ - L°,✓ - `- , 21 68 69 � '2♦1/= 0° 60. 4\\0 ?- •��Ls'�/L�bi'1'/\��•- �692 _- INVIN=6-14 INVV;04413'4(8LD). INVO 09.40 15 RCP 220 0.4 0.21 22O 1 I 0eO \ P 1 3 238 088 BIORETENTION FACILITY OD1 0.29 2C DRAINAGE AREA 693 _ (VRRM DA B - LINE 6.b) LO 4 02- 3' -,1- 0 Iw .lr3 TOP,99284' 807=690INLET(TYP) T 6" DELTOP=692.82' \_ HOT=690.50' aG 695 234 0.45 ° Ico SO INLET 4EVO NYLO TOP INV OUT=68730'12"HOPE0.06 Th all COUNTYS 696 EXISTING CROZET ALBEMARLE ELEMENTARY DB. 1 - , SCHOOL BUILDING PROPOSED ZONED: RL 695 KITCHEN 16g/ADDITION 69& 75'WIOTHUNDERGROUND UTILITY EASEMENT FOR VIRGINIA ELECTRIC POWER COMPANY DB. 1101, PG. 310 /Z 401 0.90 e 0.4 a 03 WALL �WALL lift -A00 W - W- W- SDH\ PC\U\R\�B \/- N`.L�ET W/\GR�-AT-aE-/ TOP.02'(F/L) INV OUT=692.37'15"RCP 4-_ lI ' 0 1 - I lI- ,• -�N II/ I- I- It /6- 4g019809- 9- / 1-0 .74� 0-5 x/ (1\- t--- _ --- 4- 0-_- 2 - --� �o - �-_ - - -_- \ � -_ �__Ir i 0_ 1e9_ 72_-_ \''_-�O'q�♦1'�,F;--81,--„-\_- ��_--,.h7 --_ ,'a- _-,_ '�-_,(_J-\ � Ir- _ / / ii-;1 'Aq.r-d''- \I -.'.. \ -/ .\- �r'W-1b�•.a�r�'-�\- 8- - ``- � - \,- `/ /-o 1- 1�l IIl II �- I\- ,y ea�p<Ta e 0�-�20 •-- JTF 406 40 0.03 699 150 50 \\ g.. - _7 1- It 4� 023 SETR TA/154 0.9 7020.05 70 ------------_-703- - -- - - - -_ _ _- 20'WATERLINEEASEMENT r' - - - - FOR ALBEMARLE COUNTY` SERVICE AUTHORITY DB. ti k63, PG. 28 0 - - - - 703 DC 8 12"DEC PPROXTREE DRPLINE(TYP.J VARIABLE WIDTH POLE LINE 0.84 solo INV 0.07 SEMENT FOR VIRGINIA *LECTRIC POWER COMPANY 705 7TEP IpPE3 CY&O .05------- - - - - ---------p5 dHD 11- p54 I °e \° C \ --- ---- - - - SOS - W- -f- T 1Q5', / d / I ' 111111 4 0.59 0.03 8"DEG 1100 \ / \ 20� \ ` \ m 190 \ \ \ \ \ cr3, / \ \ \\ \ 223 0.90 \ ` \ \ \\ I\ ° \\ \\ \ INv s7 sa\` 0.29 \ \ 2., DEC 0 \ \ \ \ \ \ \ \ I I1111 I I I CO * \ \ \ \ \ I I Rill' I IIII \ CHLINE -SEE SH ETC II \ 1 6"D ❑ `6-U ` \ ` \. ` `� \ \ \ 11\I 1 I kl \\\ \\\\ j \\ ...N \��\\\ \ -� PROPOSED - - - - - - _ RL 0.90 0.04 \ \ \ \ \ \ \ \ \ \ \\ \ \ �N \ \ l _ _ \ \\ � \\\\ \ \ •..\ P 56-64E HOOLBOARD OF COUNTY, VIRGINIA \\ \I \ 144, PG. 498 , a I I I I I I 1 it I \ \ \ \ \ o "\ . \ \ \ \ \ \ \ \ 1 I T \\ \ 198, PG. 703 �`� (RURAL AREAS) CC-, I I 1 \ \ \ \ s s j TD 0.75 TD 0.90 1 I \ \ 0.03 \ \ 1 \\ 1 704 \ a y PROPOSED CLASSROOM - r \ 139 0.90 y e ADDITION I \ \ AP\PRQv. AREAS O I ` \\ \\ \ \ \ \ 0.08 .. \: i ) / / I I I I I \ \ REC\E 7V�PLAN7 --�703 ° ' 69�[' 39 °° I R L 0.90 / / I I S>� ��. ` CONIC. DIVERSION / W/ MHD 1 I \ /, _ -7oz I • -698 _ 0.23 // \ / / I \ 0 `° I I j^TOP=67796' \ \\\\ \ 1 I\ \\ \ 8% EC 6"DEC �"DEC 8'•DE \ ' < ... ` \ I \ \ \ ` 136 0.78 - - 138 0.90 138 ° \ ' \ >. j R \ i \\. \ \ \ \\ \ W--�- /� 0.24 - 0.01 ` SD RB IINL T W/ D 15 RC \ ., \ \ \ �. 681 126 \ ` ► \ \ \ \ \ \ \� \ \ \ SWM #2 DRAINAGE AREA TOTAL 2.76 ACRES 1 5\ sR P (2.15 AC IMPERVIOUS; 0.61 AC PERVIOUS) s'\ ( 61 \ \682 TKR DE P rn \o w \ \ \ / INCLUDES TREATMENT OUTSIDE OF SWM LIMITS - p 6 ° \' \ 9 \asp \ T \ o UNDISTURBED AREAS LIKE MILL & OVERLAY & RELOCATED \ o \ \ / o \ ROOF LEADERS THAT DRAIN TO THE FACILITY. AS SUCH MORE \ rn rnw \ \ \\ of �\Ln IMPERVIOUS AREA HAS BEEN TREATED THAN IS WITHIN VRRM r � _ , f° \ \ \ EN 0 0.76 \ DA "B" (OUTFALL 2). `��� \ (VRRM DA B - LINE 2 14.c)0.3(VRRM DA C - LINE 14.c) CARRYOVER OF TREATED IMPERVIOUS rn�\ I I\ I1 I I I\♦ \ \ \ \ \ \\ .mZ A l AREA. CREDIT TAKEN FOR UNTREATED AREAS IN VRRM DA "C" z/ 1 OUTFALL 3 I I 1 N% ( ) I 106 .26 95 ` BIORETENTION FACILITY \ \ \ \ \ \ \ rn /' OD I 2A SHEET FLOW ♦ \ \ \ \ \ DRAINAGE AREA ♦ ` \ \ \ ' 1 8 \ (VRRM DA B - LINE 6.b) SWM #1 STORMTECH ARCH PIPE DETENTION SYSTEM WITH ISOLATOR ROW I / / / - I -I \ ♦ `\ \\ \ `\\`l k�74`51, / '1W _L l / I I I \ \ 1 �` S ` \\ \ OPEN KQoND,\\ (ANT SETBACK 14\ \ \ BIORETENTION FACILITY 2A \ \ CO 243 ° / m BIORETENTION FACILITY p p - \ 2A CONTROLLED / 132 0.89 1 \ INFLOW FROM SWM #1 '' 4 ° 6" ORIFICE "B" v6 \ � \ \ \ \ \ (VRRM DAB- LINE 14.b) I\ /146 0.83 /' I ° / I I \EMER ENCYA6pE-SS/ l� \ I §WM/4CC\ESS a ' b� -a. a'� 6"PIPE , SP�.t•' \ INV=681.56' 6 ' \ 8" DfC \ \ OPP. END NOT FND_ DEC / / ' S DEi/ '/ / / / / / 500 _ AORtX�. TREE �6PLINE (TYP.) / lNv(oUPj=ss41,' 0 o co r i two q �\ solo \voil \ a,Now- m 1 - 50 woo 01H OHP- \ ----1 OHP LEGEND: OHP Cr- \ bt- MHD / OHP I TOP=688.72' INV IN=685.26' 18"HOPE AREA - /r)HP� Qn Cl lRR /All FT IAt/MHl1 uiv n.r_coo eounnc 'I I off 7 (VRRM DA "B" -OUTFACE # 2) P \ - - - - j oHP / DRAINAGE AREA TO BIORETENTION 2A (VRRM DA „B" - OUTFALL # 2) �..,. O _ _ - - - - - - - - - - - - -: �flVh::OUF.=694;Y2'15"MCP ` _ _ _ �:-: -:".\. \ ) /' MHD -- J -' J^ \ \ / TOP=695.77' DRAINAGE AREA TO BIORETENTION 2C _ - f � (VRRM DA "B" -OUTFALL # 2) ^�T10:�: �`; �:-: � : _:_: =: � �� _ � o \ \ - - - � l INV 1N-691.71' 15"RCP INV. OUT=691.62' 18" HDPE O - - _ DRAINAGE AREA TO BIORETENTION 3A STEEP SLOPES SD INLET (GRATE) SCALE 1 "=20' O & GRASS CHANNEL / (MANAGED) TOP=700.09' (VRRM DA "B" -OUTFACE # 2) INV 1N=694.04' 15"RCP / INV. OUT=693.94' 15" RCP b 0 20' 40' / V iV\ D O VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. bemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 14U7 Crozet Avenue, Crozet, VA 22932 Client Project Number TBD VMDO Project Number 1284 Checked By Designed By Drawn By vj kD. Cichocld Z lie. No. 53741 12/i/26 A 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 STORMWATER SUMMARY PLAN C5A -ROCK \ARMOR / \ i I, \ ROCKARM�R - 1 1 1 1 \ \ I I II I I 1 I I I I I \ \ I I \I I II I I LU I \ \ >! l ro I x m I I I \ \ 1 I co I I I I 1 \ 1 I I I I \ I I 1 I \ I I It \ I ! I 1 I / \ \ J II\ I 1 I I I I I 1 I _ v V I \ I BIORETENTION FACILITY 3A 00 0°D0 roo l 1 \e I 690 1 DRAINAGE AREA cO Op 1 1 I (VRRM DA C - LINE 4.a & 6.1b) 1 310 0.61 I I 0.27 I ,' \ !- / \ I Co co � ., I �` ♦ 1 I I I I II I I I� I I ♦ I I I I I \ � � ♦ I I I I I I I I \ I l \ ) I,, ♦ I I I I I I I \ I \\ \ 1 , ' � I ♦ I I I I I I , I� \\ \ I � j .° � I i♦ II I II I � I I♦ I \ I I I I \ 1 I \ I BIOF / 5 I / ' , \ �i BLOCK RATAINING WALL 1.0'6WJ I I: \ STEEP SLOPES / (MANAGED) 11 I \\ I I I I I \ \ \ \\ \ 11 \ 1 1 \\ \' I \ \ I I I I I I \ \ \ \ 1 1 \ \ I I I I I \\ \ \ \ \ \ \ \ It \ m II II II I II II \\ \\ \ \ I \\ \ 11 \ I I I / I 10 I - _ \ ` \ \l co I I 69J F�=9.50, I 31/ 13. 2' L w� 308 � I I=14.45' / APPROX TREE ` 36" CMP ACCESS RISER P \ \ \ \ \ \ \ s"DEC \ \ �\ ` \ `\ \ 1 LEGEND: \ 1 WITH VDOT MH-1 FRAME/ / m ' ` ` \ cP AND GRATE (TYPj 0 D I I _ _ - _ - \ \ \ \ \ \ \\ \ \ ■ \\ I\ I I I I I �� I I I''° \ 111 STR# C \ STZ EP S� PE I I 11'8.53 \ \ \ rs WEIR PLATE \ \ I (MANAG \ \ ` i � \ I 1 I � �� i R=49.5n' 6�\ \ ` �� SWIM #2 9 \ .`:LQPES %8 \ \ \ o \ I I / L=34.34' 1 \ � I I i/ MANA \ ` � 1 \ I \ \ DRAINAGE AREA TO SWM #1 10OLF OF 48" CMP ' ' \ ��' - - - - - - - - - - - - - - - 6 s� \ \ ` \ \ `\ \ \ \ I 1 \ \\\ O (VRRM DA "B" - OUTFALL # 2) DETENTION SYSTEM ,o - - - - - - - - ----5 \ \ 8 DEC TION 2A 2 /o \ I / 0 ° SLOPE TO OUTLET 683� /r // r S7E�PSLOPE �� � \\ \\ \ \ \ I '\ \ 1 DRAINAGE AREA TO BIORETENTION (MANAGED) \_ - _ % \ , / \ \ \ \\ \ \ \ I \\ \ \ \\ \ O (VRRM DA"B" OUTFACE#2) GAMRACE \ \ \ \ \ DRAINAGE AREA TO BIORETENTION 2C \ I \ 1 I ,� \ \ \ \ \\ 1 1 \ 1 \ \I p \ \ \ \ \ \ ` \ \� 1 (VRRM DA "B" -OUTFACE # 2) / / I �^\15 DEC� ,\ \\ \ > EC \ a° ` I I DRAINAGE AREA TO BIORETENTION 3A -------------- // / \ \ \ \\ \ - ♦ \ \.\ ° \ \ I - - � � I /' / � � \ \ \ \ \ \ \ \\ \ &GRASS CHANNEL r' r I (VRRM DAB OUTFACE # ) �� ° I I 'i 4 � j I 1 \ \ I \ ` '1 6 / I ., IQ°<.\10"DEC` it STEEP- (CRITICALS--__- l: I.:::! , , I\ I \ .4\ 214 V. 3110 U.78 8g --��� �, \ � \ / I , \\ `\ ASPHALT, PATH \ \ \ \\\\ � �x • '11'ai:`:Il ' l 1 I 1 0.54 .°. \ \ t��___ \ �- _ >--- _ ` � ` �x�\ \ \ \\ \` \ `\ \\ ` \\ \\ ' \\\ II 'Qom - - \ \ \ \ \ \ 1 \ \ ^rl \ _ _ 1 \ 20' SA TARP SEWER EASEMENT \ \ \ \ \ \ • - - 1 1 I / 1 \ ' ° 9.'42\ <�A S ` \ - x ' - _ ` \ r� 1� \ ORAL )MARLE COUNTY - - / / \ ` BIORETENTION FACILITY 2C \ 282 ASTIc - _ _ 214 0.35 a a �' - . - _ 1 _ \}r y 0.02 - - _ ♦ t 1 I D .976, PG. 96 \ \ ` \ \ \ 1 ` \ \ ey / 34.68' END i _ °- - - - - 210 0.40 83 �L ♦ �� 1 p ` UND r , / L=11.40/ 222 _ ° S'se �\ ; L=22.6§'I • ° - ^ -. - _ _ - - - - - - �\ \ \ / a50 _ - - - - 6_87 \ \ \ \ \ 'Co \ \ \ \ \I °"q-. SCALE 1 "=20' I 1222 0.46 a8 208 0.38 % j ss .� 68s •\ 212 0.75 i. a \ p p p 20' 40'0.036p MATCH NE-SEESHEET�5.468 IIQHD a.. lN= 83. INr 'z1e ,, 216 040��� ♦ ' ,�' 0.03 V. 5695 ' " RCP N . I ./ _ 692- INV. 1N=6 3.40' 12"HDPE (W) . I _ _ 0.07 V. IN \\ IN -- 6 \ \\ \ \ \ \ \ \ \\\ V O-683.40'15'RCP78 \\\ . I . • s92 a \�\ \\ `\ \\ \ _ \\ \ 6j9 2.20 0.44 ° - - ' i \ \ \ \ \ �- \ \ \ \ \C \ \ `Y- 0.21 f 221 0.90 223 0.90 Nv=s/ sa' , I , 232 0.32 0.29 1z,.DIC \ \ \ \ 0 ` \ ` ` \ I I 'IIII I 238 0.88 BIORETENTION FACILITY OD `\ `\ \ \\ \ \ \\ \\ \\ I •I 1 U. _ I I ht 1 - 2C DRAINAGE AREA \ \ \ \ \ I (VRRM DAB- LINE 6.b) I^a \ - � , , 1 3 223 0.35 \ 6g �1-693 / ' _moo, 6g4 l' y °■ °°\\�OT689 �EC fi48c,, 0.11 /\ ryl\ I1 I 1 1 I \ \ 1 1 \ 1 \ \ I \ I \ \ I ` I ` I I 1 \ I \ 1 i 1 I I 1 I 1 I� I ' I I 1 I I ' 1 1 11 II II II I I EXISTING SOCCER FIELD 0 I II II II 1 1 I I 1 I 1 I 1 I I I 1 TMP 56-64E COUNTY SCHOOL BOARD OF 1 ALBEMARLE COUNTY, VIRGINIA DB. 1044, PG. 498 DB. 1098, PG. 703 ZONED: RA (RURAL AREAS) I 1 1 1 1 ETENTION FACILITY 3A VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com 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 of Bryan D. Ciehoeld Z Lie. No. 53741 W1/10 ":00 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 STORMWATER SUMMARY PLAN C5,l I ' I ' I ' I ' I ' I � / �'/� I II1I111111�11p \ / / 1 IIIIIII1 Jill J ^� SHEET FLOW I / EX ONSITE ( ) SHEET FLOW ' III AREA =0.84AC I JI Illr � v I �II II IMPERVIOUS = 0.24 AC 1 `® I =x- �v I FOREST=0.01AC 1 MANAGED TURF = 0.59 AC \ - 1 1 I \ 10 w \ m111111 10 II L 1 III m 1 A 11i111 ` �hCM / SWMBOUNDARY SHEET FLOW \ \ 1\ I1 Imo_ III I EX3. ION (ONSITE) \ AREA = 1.27AC \ 1\ \ II IMPERVIOUS = 0.61 AC I v V tO -�` MANAGED TURF= 0.66AC SITE OUTFALL 3 Odom TOTAL AREA=1.69 AC - �II JIM T, EX3.IOFF (OFFSITE) AREA = 0.42 AC IMPERVIOUS (GRAVEL) = 0.05 AC j v� I l IIII S n r FOREST= 0.21 AC �� / f - > sof' 1 vv v \ MANAGED TURF =0.16AC SHEET FLOW u / v ` v NK / \\, / % /i SWM BOUNDAR 7 �s�s wA A�NIA I / \ I �F� 4f EX2.5OFF (OFFSITE) AREA = 1.24 AC / EXZ ONSITE ION IMPERVIOUS = 0.90 AC 1 \ \ \ / TO SITE OUTFALL 2 \ I MANAGED TURF= 0.34AC I t/• %/ AREA =3.01AC v� ��;vvIlllj v v IMPERVIOUS = 0.96 AC � I I �� I \ o ` \ \ \ ' - SITE OUTFALL 2 ! ^p MANAGED TURF=2.05 AC CD I \ � I I I 1 � 1 \ (TOTAL AREA=1295AC EX2.30FF(OFFSITE)1 MILL &OVERLAY I�1 -� 7- __ AREA =0.55AC IMPERVIOUS = 0.50 AC 100 MANAGED TURF= 0.05AC e \\ EX220FF (OFFSITE) A v \ w AREA =3.42AC IMPERVIOUS = 0.22 AC IMPERVIOUS (GRAVEL) = 0. IIAC MANAGED TURF = 2.29 AC j I L i PERVIOUS (FOREST) = 0.80 AC I SWM „1 v v v vv I%% I � BOUNDARY Al v I�IJJIII I I I6, v v v vvv v I � I � / � I �� ■ � I n 11 I I I I `➢s ` � �� � � \ . � EX2.40FF (OFFSITE) I MILL & OVERLAY AREA = 0.07AC I t \ \ \\\\\\ L 41P IMPERVIOUS = 0.07AC I - �_' _ _ ' MANAGED TURF = 0. 00 AC - _`.700 = ' n �` 4 ,♦ /� \" \\JIB ,c / \ so SWM BOUNDARY n= J` EXZ 10FF (OFFSITE) AREA - -0.13AC V IMPERVIOUS = 0.0 AC 1 �v MANAGED TURF = 0.13 AC -,f� Y �o ' I� Vol_ L- \ I / I / ' � SITE OUTFACE 1 70 , - ' y r - - - o / i TOTAL AREA=1.09AC �/ i ______________- ------ I � I / I II III I v I III I /, � vz '�/ �I o GRASS CHANNEL TO SHEET FLOW h�ml BIORETENTION #3A � _ II I � I II�JJIIr � I IJ�jI 1 III �\ 11.1NNNI `® h SWM BOUNDARY �\ Jill �90- w I l l 11 I 6y �I I CD o v - PR4. ION (ONSITE)- �O SHEET FLOW I I v v v \ \ I AREA = 0.49 AC IIII � 1 \ \ \ 1 pl I I I I IMPERVIOUS = 0.09 AC MANAGED TURF = 0.40 AC � \ Jill III I I IIIII A A Aho BIORETENTION FACILITY #3A - PR3. ION (ONSITE) \ \ p \ 11 LEVEL 2 AREA = 1.35AC III \ \ I II IMPERVIOUS = 0.72 AC \ SITE OUTFALL 3 SWM #2 100 LF OF t / co' MANAGED TURF= 0.63AC I TOTAL AREA=1.42AC III I 48" CUP DETENTION - - - V o I IA A\ EX3.10FF OFFSITE ( ) AREA = 0.42 AC IMPERVIOUS (GRAVEL) = 0.05AC �I Y t ; ---r 11 1 4\1 FOREST= 0.21 AC FLOW w - - MANAGED TURF = 0. 16AC I� BIORETENTION FACILITYLEVEL 2 \V r / SWM BOUNDARY / PR2. ION (ON ITE) AREA = 3.45AC ` �D IMPERVIOUS= 1.95AC PR2.5OFF (OFFSITE) 6e5 MANAGED TURF = 1.50 AC AREA=1.12AC �� �- �/ IMPERVIOUS =. 78 AC d 0.72 AC TO SWM I � MANAGED TURF = 0.34 AC OUTSIDE SWM a SITE OUTFALL 2 / LIMITS CARRIED \ TOTAL AREA=13.77AC OVER TO DA C EX2.30FF(OFFSITE) \ \ \\ \ AREA-0.55AC MILL &OVERLAY VA M IMPERVIOUS = 0.50 AC TURF = 0.05 AC ® A I EX2.2OFF OFFSITE �' r vvv vvV I AREA = 3.42AC / - _ \ SWM #1 STORMTECH IMPERVIOUS = 0.22 AC I / _ _ _ - _�'DETENTION SYSTEM L IMPERVIOUS (GRAVEL) = 0.11 AC I I \ 6 WITH ISOLATOR ROW MANAGED TURF = 2.29 AC rn \ DA=2.76 ACRES PERVIOUS (FOREST) = 0.80AC I SWM / tV ovv v 07AC `�� BOUNDARY Y v v v EX2.40FF (OFFSITE) MILL & OVERLAY AREA = 0.10 AC IMPERVIOUS = 0.10 AC�- MANAGED TURF = O.00 AC N. 1 as NO go 000000 00.000� -- _ _ � �i' \ \ EXI. ION (ONSITE) TO SITE OUTFACE 1 � I AREA = 0.29 AC rr I IMPERVIOUS = 0.00AC -106, ; / l PERVIOUS (MANAGED TURF) = 0.29 AC / - ;" EX2.0OFF (OFFSITE) EXI.10FF (OFFSITE) / AREA = 4.53 AC , TO SITE OUTFALL I IMPERVIOUS = 0.61 AC �111` AREA = 0.80 AC MANAGED TURF =3.92 AC 4f IMPERVIOUS = 0.40 AC PERVIOUS (MANAGED TURF) = 0.40 AC E8 OyN 411 \ RY /I�� ,-- I n i SWM BOUNDA �-�--�- PRZ TOFF (OFFSITE) AREA=0.15AC� -7 IMPERVIOUS = 0.0 AC . MANAGED TURF = 0. 15AC SITE OUTFALL I / _ so on _ f f ��_ / BIORETENTION f PR 1. ION (ONSI TE) FACILITY #2A LEVEL 2 _ - -7 AREA = 0.12 AC ==-=- 709xrt. n - IMPERVIOUS = 0.03 AC T+.n PERVIOUS (MANAGED TURF) = 0.09 AC / EXZOOFF (OFFSITE) PRI. TOFF (OFFSITE) / AREA = 4.53 AC AREA = 0.77 AC IMPERVIOUS = 0.61 AC IMPERVIOUS = 0.38 AC / MANAGED TURF =3.92 AC PERVIOUS (MANAGED TURF) = 0.39 AC E8 db'N IIII VMDO Architect, 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com 0•••,� • 0 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 v- kD. Cichoeld 'Z lie. No. 53741 ftT n Checked By Designed By Drawn By 1211/?0 A 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 STORMWATER MANAGEMENT PLAN PRE -DEVELOPMENT CONDITION SCALE V=60' 0 60' 120' POST -DEVELOPMENT CONDITION SCALE 1 "=60' 0 60, 120' C6J DRAINAGE AREA ANALYSIS (POST -DEVELOPMENT) DRAINAGE AREA ANALYSIS (POST -DEVELOPMENT) WATER OUANTITY SITE OUTFALL 3 WATER QUANTITY SITE OUTFALL 1 DRAINAGE AREA ANALYSIS (PRE-DEVELOPMEN EX1.1ON (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 DRAINAGE AREA ANALYSIS (POST-DEVELOPMEN EX1.10N (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 CHANNEL PROTECTION (ENERGY BALANCE): QDEVELOPED 5 0-90t(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 Q10:5 PRE -DEVELOPED Q10 OK 4.75 CFS (POST -DEVELOPED Q10):5 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) PR4.1ON (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=5MIN TC=5MIN 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 5 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 Q10 <_ PRE -DEVELOPED Q10 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* Drainage Area B Forest/Open Space -- undisturbed, protected Area (ai 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 WATER QUANTITY SITE OUTFALL 2 DRAINAGE AREA ANALYSIS (PRE-DEVELOPMEN EX2.1ON (ONSITE) AREA = 3.01 ACRES 0.96 ACRES (IMPERVIOUS) 2.05 ACRES (MANAGED TURF) 0.00 ACRES (WOODS) TC = 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) TC= 15 MIN Q (CFS) 1 YEAR 2.72 2 YEAR 4.76 10 YEAR 11.92 EX2.1OFF (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) TC= 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) TC = 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) TC = 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 PR2.1 ON(ONSITE) TOTAL FOR ENERGY BALANCE COMP (TO SITE OUTFALL 2 VIA SINM 1 & BIORETENTION 2A&2B) AREA = 3.45 ACRES CN = 79 (ADJUSTED FROM VRRM SEE DA.B) TC = 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 PR2.5OFF (OFFSITE) REDUCED FOR PARTIAL CAPTURE IN SWM) AREA = 1.12 ACRES 0.78 ACRES (IMPERVIOUS) 0.34 ACRES (MANAGED TURF) TC = 5 MIN Q (CFS) 1 YEAR 3.37 2 YEAR 4.40 10 YEAR 7.42 CHANNEL PROTECTION (ENERGY BALANCE): QDEVELOPED 5 0.80"(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 Q10:5 PRE -DEVELOPED Q10 OK 45.51 CFS (POST -DEVELOPED Q10):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 I of 1 B Soils 0.00 55 1.50 61 1.95 98 1-year storm 2-year storm RVDeveloped (Watershed -inch) with no Runoff Reduction* 1.43 1.96 RVDeveloped (Watershed -inch) with Runoff Reduction* 1.25 1.78 Adjusted CN* 79 so C Soils D Soils 0.00 70 0.00 77 0.00 74 0.00 80 0.00 98 0.00 98 7 ear storm CN(D.A. B) 82 3.60 3.42 so Total Area (acres): 0.12 Runoff Reduction Volume Ift31: 0 Total Area (acres): 3.45 Runoff Reduction Volume Ift31: 2,264 PR2.10N(ONSITE) UNDETAINED AREA = 0.69 ACRES 0.19 ACRES (IMPERVIOUS) 0.50 ACRES (MANAGED TURF) TC = 5 MIN 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 CONTROL STRUCTURE ELEV. = 696.10' TOP OF 3' 5" WEIR ELEV=690.08' 7"Weir--------- _ 10YEAR _WSE _ ELEV=687.50' �, 690.01' 0 2 YEAR WSE 688.19' - 0 1 YEAR WSE ---- WEIR WALL IN 687.46' CONTROL STRUCTURE 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 (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 RVDeveloped (watershed -inch) with no Runoff Reduction* RVDeveloped (watershed -inch) with Runoff Reduction* Adjusted CN* DRAINAGE AREA ANALYSIS (PRE-DEVELOPMEN 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 5 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 (EX3.10FF) = 2.26 CFS FLOOD PROTECTION: POST -DEVELOPED Q10 <_ PRE -DEVELOPED 010 OK 8.25 CFS (POST -DEVELOPED Q10):5 8.30 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 0.63 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 Impervious Cover Area CNN 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 1 61 1 74 1 80 0.00 0.09 0.00 0.00 98 98 98 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 _WSE _ 683.40' 2 YEAR WSE ----------- 1YEAR WSE - 681.54' DEBRIS CAGE DETAIL 7" ORIFICE WITH DEBRIS CAGE PROVIDED ON SHEET C6.2' INV 680.00' UNDERGROUND CMP WEIR PLATE SECTION DETAIL - SWM2 Total Area (acres): 1.35 Runoff Reduction Volume Ift31: 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 (100 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 BIO 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=5MIN 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 VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com �0000 ! • Ij 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 ft25 Checked By Designed By Drawn By of Bryan D. �Cichoe Z Lie. No. 53741 al / o ":00 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 STORMWATER MANAGEMENT QUANTITY C6n 1 DEQ Virginia Runoff Reduction Method Re -Development Compliance Spreadsheet -Version 3.0 O 2013 Draft BMP Standards and Specifications O 2011 BMP Standards and Specifications Project Name: Date: Crozet Elementary School 11/22/2020 Linear Development Project? No Site Information Post -Development Project (Treatment Volume and Loads) Enter Total Disturbed Area (acres) -->11 5.41 Pre-ReDevelopment 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 yards or other turf to be 3.59 3.59 Impervious Cover (acres) 181 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 yards or other turf to be 2.62 2.62 Impervious Cover (acres) 2 79 1 1 2.79 L 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 (lb/acre/yr) 0.41 Pi (unitless correction factor) 0.90 Runoff Coefficients (Rv) CLEAR ALL (Ctrl+Shift+R) 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 1 0.25 Impervious Cover 0.95 0.95 0.95 0.95 .. •. • '' '• •' Land Cover Summary -Pre Land Cover Summary -Post (Final) Land Cover Summary -Post Pre-ReDevelopment Listed Adjustedl Post ReDev. & New Impervious Post-ReDevelopment • t Forest/Open Space Cover (acres) 0.01 0.00 Forest/Open Space 0.00 Forest/Open Space 0 .00 Cover (acres) Cover (acres) Weighted Rv(forest) 0.03 0.00 Weighted Rv(forest) 0.00 Weighted Rv(forest) 0.00 % Forest 0% 0% % Forest 0% % Forest 0% Managed Turf Cover (acres) 3.59 2.62 Managed Turf Cover 2.62 Managed Turf Cover 2.62 (acres) (acres) Weighted Rv(turf) 0.20 0.20 Weighted Rv (turf) 0.20 Weighted Rv (turf) 0.20 % Managed Turf 66% 59% % Managed Turf 48% % Managed Turf 59% ImperviousCover(acres) 1.81 1.81 Impervious Cover 279 ReDev. Impervious 1.81 (acres) Cover (acres) Rv(impervious) 0.95 0.95 Rv(impervious) 0.95 Rv(impervious) 0.95 %Impervious 33% 41% %Impervious 52% %Impervious 41% Total ReDev. Site Area Total Site Area (acres) 5.41 4.43 Final Site Area (acres) 5.41 4.43 (acres) Site Rv 0.45 0.51 Final Post Dev Site Rv 0.59 ReDev Site Rv 0.51 I Treatment Volume and Nutrient Load Treatment Volume and Nutrient Load Final Post- Pre-ReDevelopment Treatment Volume Development Post-ReDevelopment ( ft) 0.2032 0.1870 Treatment Volume 0.2645 Treatment Volume 0.1870 (acre-ft) (sae-ft) Final Post- Pre-ReDevelopment Treatment Volume Development Post-ReDevelopment 8,849 8,144 11,523 Treatment Volume 8,144 (cubic feet) Treatment Volume (cubic feet) (cubic feet) Final Post- Pre-ReDevelopment TP Load Development TP Post-ReDevelopment (Ib/yr) 5.56 5.12 Load 7'24 Load (TP) 5.12 (Ib/yr) (lb/yr)* Pre-ReDevelopment TP Load per acre Final Post -Development Post-ReDevelopment TP 1.03 1.16 TP Load per acre IL34 Load per acre 1.16 (lb/acre/yr) (lb/acre/yr) (Ib/acre/yr) Baseline TP Load (lb/yr) Max. Reduction Required (0.411bs/acre/yr applied to pre -redevelopment area excluding 1.82 (Below Pre- 20% pervious land proposed for new impervious cover) ReDevelopment Load) i Adjusted Land Cover Summary: Pre ReDevelopment land cover minus pervious land cover(forest/open space or managed turf) acreage proposed fornew impervious cover. Adjusted total acreage is consistent with Post-ReDevelopment acreage (minus acreage of new impervious cover). Column I shows bad reduction requriement for new impervious cover (based on new development load limit 0.41 Ibs/acre/year). TP Load Reduction Required for 1.02 Redeveloped Area (lb/yr) TP Load Reduction Required (lb/yr) Pre-ReDevelopment TN Load 39.77 (lb/yr) 2.74 Nitrogen Loads (Informational Purposes Only) Final Post -Development TN Load (Post-ReDevelopment & New 51.79 Impervious) (lb/yr) VA DCR SPECIFICATION NO. 9 SOIL MEDIA SPECIFICATIONS VA DCR STORMWATER DESIGN SPECIFICATION NO. 9 BIORETENTION Table 9.7. Bioretention Material Specifications 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 a 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. Alternative 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 gi l./min.lsq. ft. the underdrain. For hotspots and certain (e.g., Geotex 351 or equivalent) karat sites only, use an appropriate liner on bottom. 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- 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/o 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 qualified supplier, should be appropriate a 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 r Land Cover Summary -Post Post -Development New Impervious New Impervious Cover (acres) Rv(impervious) Post -Development Treatment Volume (acre-ft) Post -Development Treatment Volume (cubic feet) Post -Development TP Load (lb/yr) t 0.0776 106 24" NYLOPLAST BASIN CLEANOUT WITH DOME GRATE Soil porosity is the fraction of a volume of soil material that is not solid, also referred to as the TOP = 681.00 void space. As the volume of fines, defined as either clay particles (less than 2 microns, or 0.002 min) or silt particles (between 2 and 50 microns, or 0.002 and 0.05 min) within a given soil mix RAMP SOIL TO LIP OF OVERFLOW STRUCTURE is increased, there is a possibility that those fines may be flushed or migrate downward through MIN SLOPE 3:1 the soil mix with each runoff event and eventually fill or otherwise clog the void space randomly 5 throughout the mix and create preferential flow paths. In the short term this can lead to short �� BOTTOM OF circuiting and reduced volume reduction and pollutant removal, and in the long term may clog BIORETENTION the soil layer. This tendency is offset by addition and maintenance of appropriate amounts of BASIN 680.50 soil organic matter which binds soil fines into larger non -mobile aggregates. 3" HARDWOOD BARK MULCH • General Filter Media Physical Composition. The mineral soil texture of the bioretention soil BOTTOM ELEV 680.25 mix should be loamy coarse sand with no more than 10% clay, no more than 20% silt +clay 36" BIOFILTER MIX 15" HDPE INV. OUT = and at least 75% of the sand fraction should be coarse or very coarse sand. BOTTOM ELEV 677.25 67! 3" NO. 8 STONE • To allow for appropriate Cation Exchange Capacity (CEC) and nutrient removal, the mix TOP ELEV 677.00 should contain at least 10% soil fines (silt + clay) while meeting the overall texture 15" NO. 57 STONE specification above. The particle size analysis must be conducted on the mineral fraction only O O O O O O or following appropriate treatments to remove organic matter before particle size analysis. ELEV.675.75 • The Filter Media should contain 3% to 5% organic matterb conventional Walkle Black soil g y y- SEE CLEANOUT DETAIL SHEET C1.1 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. 4" PERFORATED SCHEDULE40 MIRAFI 140N FILTER PVC UNDERDRAIN FABRIC OR EQUIVALENT. DAYLIGHTED ON SITE TO BE 2' WIDE Version 2.0, January 1, 2013 Page 25 of 62 SEE SHEET C5.0 CENTERED ON UNDERDRAIN VA DCR STORMWATER DESIGN SPECIFICATION NO. 9 BIORETENTION NOTES 1. 36" BIOFILTER MEDIA DEPTH SHALL BE THE MINIMUM DEPTH AFTER A SETTLING • The overall particle size distribution of the mix will vary since the sand fraction may contain PERIOD OF THREE DAYS. some finer sizes as will native topsoils if utilized. As stated previously, the goal of the mixture BIORETENTION FILTER 2A DETAIL (LEVEL 2) 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 NO SCALE 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: 220 o Sand shall consist of silica based coarse aggregate, angular or round in shape and meet 24" NYLOPLAST BASIN the mixture grain size distribution below. No substitutions of alternate materials such WITH DOME GRATE as diabase, calcium carbonate, rock dust or dolomitic sands are accepted. In particular, CLEANOUT TOP = 685.75 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, RAMP SOIL TO LIP OF but the overall sand fraction must meet the specification of>75% being coarse or very OVERFLOW STRUCTURE � coarse sand. MIN SLOPE 3:1 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 am 15 to 60 No. 50 0.3 min 3 to 15 No. 100 0.15 min 0 to 4 Effective Particle size (D 10) > 0.3mm Uniformity Coefficient (D60/D10) < 4.0 o Topsoil is generally defined as the combination of the other ingredients referenced in the bioretention soil media: sand, fines (silt and clay), and any associated soil organic matter. Since the objective of the specification is to carefully establish the proper blend of these ingredients, the designer (or contractor or materials supplier) must carefully select the topsoil source material in order to not exceed the amount of any one ingredient. Generally, the use of a topsoil defined as a loamy sand, sandy loam, or loam (per the USDA Textural Triangle) will be an acceptable ingredient and in combination with the other ingredients meet the overall performance goal of the soil media. o Organic matter materials used in the soil media mix should consist of well - decomposed natural C-containing organic materials such as peat moss, humus, compost (consistent with the material specifications found in Design Specification #4 Compost Soil Amendments), pine bark fines or other organic soil conditioning material. However, per above, the combined soil mix should contain 3% to 5% soil organic matter on dry weight basis (grams organic matter per 100 grams dry soil) by the Walkley-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 Extend mesh from the top Apron General Notes: THE CORRECT SECTIONS WERE INSTALLED. of the headwall to top of • 6" - 21a compacted to a minimum 95% rack of standard proctor (ASTM-618) with falter fabric to be placed under the Headwall rate removed for clarity. apron. 3,380 (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 -walla with rebar. 12" OC #6 Rebar • Concrete to be Class A-4. each way • AIR reinforcing steel to meet the current requirements of ASTM Spec. A-615. 2.12 TP Load Reduction Required for New 1.72 Impervious Area (lb/yr) A. I Components Trash Rack width Frame Angle Iron Bottom Flat Steel Woven/Welded Wire Mesh Steel Rod for Grate up to 98" 1�"Xl�a"Xya" 1?t"�'a" 1'i" between 38"-80" 2"X2"XY4" 2"Xy4" fig" 80" and larger 9"X3"X3'g" 3"Xa/g" e/g" Min. Mesh Opening Size Low Flow -See BMP-See -1604.8B, 8C 6-1604.8B, 8C 4" 1" Trash Rack General Notes: Additional Notes - 3' minimum trash rack width is required where available. 'hash 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 Heu of - All mounting hardware to be stainless steel galvanizing. and threads to be coated in anti-sieze. - Additional structural reinforcements to be - Minimum % " 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 9' z 9' (min) access door with locking aide pia connection as per details shown in Plate mechanism to be installed on front face. 4511-6. All hinged/pinned trash racks to have locking mechanism. Mechanism to be installedon the upper half to minimize potential to Trash Racks mounted on Headwalls: become inaccessible due to submergence be - In case of space restrictions at headwalls, under water/sediment. use 2' min width of fresh rack. - Mesh opening size to be %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 45B-6. provided in table above. LOW FLOW ORIFICE DEBRIS CAGE DETAIL NO SCALE a B. 8" thick concre 1'-6" apron extending entire width of the I structure 5' (Hain) Trash Rack on Headwall Plate bolted to Pipe welded t min t/g clearance around at Pipe welded to trash min clearance around steel rete apron notes) " Min steel rod " Mounting hole for iy " bolt SIDE PIN DETAIL plate bolted to riser Mounting hole for bolt Pipe welded to trash rack oy min )'g " clearance around steel rod jc� Min steel rod Pipe welded to plate 3" Pipe welded to trash rack min "clearance around steel rod min clearance around steel rod TOP HINGE DETAIL DEBRIS CAGE MOUNTING DETAILS NO SCALE 'y \ BOTTOM OF BIORETENTION ASIN 685.25 BASIN 685.25 3" HARDWOOD BARK MULCH 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 310 24" NYLOPLAST BASIN WITH DOME GRATE CLEANOUT 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 0 0 0 0 0 15" HDPE NV. OUT = 679 ELEV.678.75 SEE CLEANOUT DETAIL SHEET C1.1 4"PERFORATED SCHEDULE40 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 3/4 inch Holes Aluminum Flat Vs6sher A .� - - (6 Places) B - 1.75inx.25in stainless Steel Screw Ouget •� (6 Places( Pipe • 1 • 0 ' A D1AA1ElER 15" < 18" < 24„ Plastic VM11 10 B HEIGHT 24 30" 36" Anchor (a Places) 0 C WIDTH 23" 28" 34" 3/8 inch Holes A(F STANDARD DETAIL FOR TRASHGUARD 1,.81 .� :...18...-., '. FLAT BOTTOM CATCH BASINS 1-00-44-3636 PRETREATMENT DEVICE BIOFILTER 2C - INSTALL IN STIR. 238 OVER EXITING PIPE 237 NO SCALE VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. eemarle 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 Bryan D. Cichoclti '20, laic. No. 53741 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 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 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 (no RR) 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 BMPAREAS, 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 4.a. Grass Channel A/B Soils (Spec #3) 4.b. Grass Channel C/D Soils (Spec #3) 4.c. Grass Channel with Compost Amended Soils as per specs (see Spec #4) 6.a. Bioretention #1 or Micro-Bioretention #1 or Urban Bioretention (Spec #9) 6.b. Bioretention #2 or Micro-Bioretention #2 (Spec #9) 14.a. Manufactured Treatment Device - Hydrodynamic 14.b. Manufactured Treatment Device- Filtering 14.c. Manufactured Treatment Device -Generic Drainage Area D Drainage Area A Land Cover (acres) Forest/Open Space (acres) Managed Turf (acres) Impervious Cover (acres) 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 20 0.13 0.14 0 115 462 577 1s 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. 10 0 0 0 0 15 0.00 0.00 0.00 0.00 TOTAL PHOSPHORUS REMOVAL REQUIRED ON SITE (lb/yr) 2.74 20 0 0 0 0 15 0.00 0.00 0.00 0.00 TOTAL PHOSPHORUS AVAILABLE FOR REMOVAL IN D.A. C (lb/yr) 1.85 40 0 0 0 25 0.00 0.00 0.00 0.00 TOTAL PHOSPHORUS REMOVED WITHOUT RUNOFF REDUCTION PRACTICES IN D.A. C (lb/yr) 0.46 0 TOTAL PHOSPHORUS REMOVED WITH RUNOFF REDUCTION PRACTICES IN D.A. C (lb/yr) 0.34 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 TOTAL PHOSPHORUS REMAINING AFTER APPLYING BMP LOAD REDUCTIONS IN D.A. C (lb/yr) 1.05 0 0 0 0 0 20 0.00 0.00 0.00 0.00 SEE WATER QUALITY COMPLIANCE TAB FOR SITE COMPLIANCE CALCULATIONS 0 0 0 0 0 20 0.00 0.00 0.00 0.00 0 0.53 0 0 1,828 1,828 40 0.00 1.15 0.46 0.69 A Soils B Soils 0.40 0.09 C Soils D Soils Total Totals Land Cover Rv 0.00 0.40 0.09 0.49 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 0.00 0.20 0.95 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. D (ft3) 0 TOTAL PHOSPHORUS AVAILABLE FOR REMOVAL IN D.A. D (lb/yr) 0.38 TOTAL PHOSPHORUS REMOVED WITH RUNOFF REDUCTION PRACTICES IN D.A. D (lb/yr) 0.00 TAIL PHOSPHORUS REMAINING AFTER APPLYING RUNOFF REDUCTION PRACTICES IN D.A. D (lb/yr) 0.38 'otal Phosphorus Available for Removal in D.A. D (lb/yr) 0.38 Post Development Treatment Volume in D.A. D (ft) 601 SEE WATER QUALITY COMPLIANCE TAB FOR SITE COMPLIANCE CALCULATIONS BIORETENTION SIZING COMPUTATIONS 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)ll0.00 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) 51.79 THE OWNER RESERVES THE RIGHT TO APPLY THE NITROGEN LOAD REDUCTION ACHIEVED (lb/yr) 14.15 SURPLUS TREATMENT OF 0.21LB/YR TO OTHER REMAINING POST -DEVELOPMENT NITROGEN LOAD (Ib/yr) 37.65 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=J 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 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 Requred Volume Tv= 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 Requred Volume Tv=1 604 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= 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 2A NOTES: BIORETENTION FILTER 2A 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 M D O VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com •000 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 f7.5 Checked By Designed By Drawn By �fAL Bryan D. Cichocki Z Lie. No. 53741 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 STORMWATER MANAGEMENT QUALITY C63 Virginia Stormwater Management Handbook, Chapter 9 July 2013 Vuginia Stormwater Management Handbook, Chapter 9 July 2013 VA DEQ STORMWATER DESIGN SPECIFICATION NO. 9 Virginia Stormwater Management Handbook, Chapter 9 July 2013 Virginia Stormwater Management Handbook, Chapter 9 July 2013 9-C.8.0. PERMEABLE PAVEMENT: 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( _ Level Ideally, each permeable pavement installation should be inspected in the Spring of each year, especially at large-scale installations. z Element of o- owd. Who Will BMP Potential Problem E s tf How to Fix Problem Address Comments ® Oe ` Problem p m n w i cad 1 There is excessive Remove immediately. Owner or trash and debris profeaelonel There is evidence of owner or Contributing arosino Edition bare or Stabilize immediately. Drainage Area exposed soil professional There is excessive Owner or landscape waste and Remove immediately. professional d clippings Check that tree roods have not penetrated the pavement and leaf residue has not miamm Trees and shrubs are clogged the pavement. Owner or Vegetation within 5 feet of the Vegetation that limits access Professional pavement surface or interferes with the permeable paw .M opecAlon must be pruned or removed. There is Stressed" trash, debris or Remove Immediately Owner or Inlets, Pre- sediment Professional Tmatrnent Cella accumulation and Flow There Is evidence of confsion Diversion erosion and /s Stabilize Immediately professional Structures ed Soil Clean out sediment or Evidence of dogging debris. Remove and wash or Professional replace done, as needed Eliminate standing water and establish vegetation; treat for mosquitoes as needed. N Pavement sprays are Considered, men Omer or Surface Mosquito, proliferation use a licensed pest professional controller to apply an approved mosquito larvicide (only if absolutely necessa 9-c-22 3r"Party-Construction InsO ibG�k€r'Jrlist and Ce ifica�on Permeable Pavement DEQ Spa.. N. 7 & PFM 6-1304 snkn N.. ,3mnlm1u.n In— Partermal 3" Pnny lnspe,en, Fum e aS candy mepecmr Mme Ta am-'mwlldd-I 'N =w LonlacI icon l pMm, Nnmlm, -- _ _eammlumbw�. mown on pla..na gemmal kn.aon on mpae - -A Corgi ieation Is required fair all SW WBMP faglitlas under PFM 6-1300 d, sap. - :A Virginia licensed professional engineer or licensed professional meeting the axemphoh requirements dtdI e `iC4d"Vinginio §54.141[1-merslsign the Comfcalmn at lie end of this thecklist. Inswchenr Check each item as complete, or write in -WA- for those items that are not applicable. FIII In blanks for reques'ad information on dmensons, materials. etc. . Provide one or more photos for applicable M items; ecklemes indicate items that coo.rc photos. Pre-Installatlon Meeting and Site Preparation e❑a PHOTO s.r Pminslalallon MCMngwy,af ilmignaled to mm.n me lawny -iommmor ce m way onspeo, (..designee) A More of chi ckut and tentative weedule tom interim the a.a. n-cis sae beenm...seed ❑ eonvmmmg enl.aee area..n aseaoad ind.me,adme. ❑ ❑ sm,mwm.. ruw116 m-S.H. oral.vae.n.nu.. .moo. d.pmM,Mrw. L...vrbon ery❑x OFNISPECTION I COMMENTS Horizontal Ye.tbndaMp n6 mnacc.Nanaewan lie apprwetlDATE Plana. ❑ s.narade e.m[p Commma.. m na,ane parm .fie. Wass mar ee nYe wIm was aggreeme.l ❑ For kvelzpmme.ea pavement: e..,vaion tponm . spardllea. ❑ N.gr.unmsY,aeepage.ran,dingwaYrhpmeent An, Yndingwater w dew,Yr,d to an acceYame dewmmtng device, and the Saturn a m.veam wa seen nmni.d ❑ ❑ naearnkwa wno. esvnnwma aria emote Pao HplY.nny p...Zip atl plane. inter Layer and Underdmin Placement CHECK PHOTO sca"Ren, ❑ al agsregmee Is, ......SE.c.aswhopero Cumn, . ilea...a cwmm, Y epe.dl.mrons. ❑ ❑ Tom ..led undeY.aInase and spacing penpwwed Plans. pow mamaur Inches Molerla PlpeSwmng x EIRI, Pmlmmenalzmapa.ing R ❑ FMe.uv...ne male rese,von syer.gereemn spreed loot dumped) to *,and sometime eegmgmbn per approved plans. thro, or After hoer N. ❑ ❑ Imwnneabl.nnar iwhen required) Y placed In aworaan..wlm nunacmrer.wcalesconw Per approved ptane. ❑ wad.ronln,owervalmm nwWF annunaemnm INDIN aa' wy w cop n wmnam ens. rim) installed per approved Plane. Numbn e, oewrvatbn wells PS 1fix VA DEQ STORMWATER DESIGN SPECIFICATION NO. 7 9.3. Maintenance Inspections Stabilize Immediately. Mow, irrigate and apply organic There Is evidence of (not chemical) fertilizer, as erosion ant / or bare needed to keep grew Pier orad exposed soil in grid healthy and dProfessionalio enough to Professional provide filtering while paververareas protecting me underlying soil.oll. Remove any grass clipping., There is loose Remove immediately and material (e.g., bark vacuum sweep the area to Professional sand, etc.) stored on prevent dogging the the pavement surfacepavement pores. Pavement is stained The surface must be kept andor dogged or dean and free of leaves, water is ponded, debris, and sediment by Pavement Indicating the vacuum sweeping (without Surface pavement is not brooms or water spray) draining properly. mediately and, otherwlee. Iwm the MaamM a frequency consistent •awdoyanown cote in the with the use and loadings observation well for encountered (at a minimum, hole (3)days annual dry- her following a some event that extxleds the Sp sweeping in me Spring). Profeeabnat 1/2-Inch of reinI 12. f Whore paving blocks are d-Inchanding water. dill Installed, the sweeper must observed in the well be celiblated so a does rwf after three days, this pick up the stones between is a dear sign matthe the paver blocks. Following pavement is clogged. the vacuum sweeping, test There am significant pavement sections by amounts of sediment pouring water from 5 gallon have accumulated buckets, to ensure proper between the parverm. drainage. There is evidence of Structural surface surface detedodatbn, such slumping, or replace enacted Professional Integrity checking, spelling or areas as necessary. Obmbroken on ervatlon Repair, as necessary. Professional Wells Walla ed1 obstructed ffouVet. Remove obsbudions and outlet nd soli sWbllize eroded p exposed Otmer or evident Professional Wet. stabs 9-C-23 3"'Party-Construction Inspection Checklist and -Car 'I�restibn:I Permeable Pavement DEQ Stand. No. 7 & PFM 6.1304 Stone Reservoir Aggregate Placement e.❑x nrsCe,pH g sIW[[WawdwM paNertila wile no Yen, epM. Ma„wwn wNNI.; _ -4._ sron.m..rvmdaw•ageregare pspem.m,wmwmmm, aria. - Imanae[..M. Top Prwaepane- oearn ...... 1,layeraggregale-_ In[nee Bedding Layer and Pavement Installation eHEex PHOTO HOT Esca,eox n RATED' A.11CIN]HICOnerinIC ❑ ❑ Pre�trealment structures (when repueeel ace installed per apwovea plane. Tyye of pntrulmen[ -❑ Concentrated film He net bema ds. Med dtremlr.m. In. wm,eabk Peamem. ❑ Paeemam surface is seen and runom spreads wenlYampss waa.e. ❑ Flow reaoamn prince me cop pl...e.. the end onhe Mearm., - wdemmInwrapp.ovee pans. -❑ ❑-- p«m.aere wvemem bmcx.yq.m.whmhreau.s aas restraints are installed flush wire lie paver mock, per approved p con. ss. or ease a.nnlnte TYwcal Edgea memens _-0 - Aesreg.Near far lw msnnaeonmlhe.newemin... learn wrahavem pion.. oemh m ammgato star_ R siee maxpegaa Inver_ ❑ stone lnaYlkdper PFM 6.11. aB ❑ Pwmome asphalt and wmho,Om—he pavement. the Hill wmmwennv m cowrie sum.. he, wen properly testes (.Icon Imapplka nor ram. mY m s wm.varwe.mim..mcq, andellwearimllb eddire[ttywlth.wpuddk Y,metmnor ..ram mnoa. ❑ ❑ PrwhYapnplo of the aMP Yc111tYewr wmplMi.n o1 nslmn,on. Final Certification I do hereby cedify that mis as -built information for the stormwater management/BMP facility was inspected by me (or by an individual under my responsible charge) and conforms to the approved plans, except as indicated. Date License Number (seal): ('Car ify' means to state a declare a professional opinion based on sufficient and appropriate onsite inspections and material tests conducted during construction) Pass a 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 dots this is a clear sign that clogging is a problem. days, 9 99 9 • Inspect the surface of the permeable pavement for evidence of sediment deposition, organic debris, staining or ponding that may indicate surface clogging. litany 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 they are immediately stabilized with grass cover. • 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. • 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. Sueeested Annual Maintenance Activities for Bioretention Maintenance Tasks Frequency a Mowing of grass filter strips and bioretention turf cover At least 4 times a year a Sot weeding, erosion repair, trash removal and mulch raking Twice during growing season a Add reinforcement planting to maintain desired the vegetation P 9 9 density As needed Is Remove invasive plants using recommended control methods a Stabilize the contributing drainage area to prevent erosion • Spring inspection and cleanup w Supplement mulch to maintain a 3 inch layer Annually a Prune trees and shrubs a Remove sediment in ra-treatment cells and inflow points Once eve 2 to 3 ears Re lace the mulch Isyet Every 3 years BIORETENTION FACILITY MAINTENANCE REQUIREMENTS No Scale In> lcction Activities StlTgested SChedUIC • After several storm events or an extreme storm event, inspect for: signs ofclogging of the inlet or outlet structures and sediment accumulation. As Necdcd • Inspect for: trash and debris; clogging of the outlet structures and any pilot channels: excessive erosion; sediment accumulation in the basin and inict/outici 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 downstream and pilot channels are 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 • Perform 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 9-C.10.0. BIORETENTION PRACTICES: O&M CHECKLIST Inspection Date Project Site PlanlPermit Number Location Date BMP Placed In Service Date of Last Inspection Inspector Owner/Owner's Representative As -Built Plans available: Y / 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 foreba Y (above ground) ) permeable pavement, ❑ Sedimentation chamber infihration 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, pefembly during the Spring. During the first 6 months followingconstruction offs bioretention facility, the site should be inspected at least twice after storm events y. P that exceed 112-inch of rainfall Watering is needed once a week during the first 2 months following installation, and men as needed during the first growing season (April -October), depending upon rainfall 1f 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, reinforcement plantings, free and shrub pm)ng, and sediment removal. Z Z Z > Element of r Who Will BMP Potential Problem E • 'm How to fix problem Address Comments as O173 Problem n 1; • b a c K Adequate vegetation Supplement as necessary Omer or slonal There is excessive Remove Immediately Owner or fresh and debris professional There is evidence of Owner er erosion and/or bare Stabilize immediately pwf¢ssional Contributing sexposed soil Drainage Arce There are excessive Remove immediately and recycle Owner or landscape waste or or compost professional yard clippin 011, grease or other Identify Identify and Control tine me spuof unauthorized this pollution. It may be necessary cal substances are to Sold fences, signs, etc professorial the fall' Prot-Trcehnant There is adequate appear; Establish adequate access Professional access tome re- and, ems 9-C-28 Virginia Stormwater Management Handbook, Chapter 9 Z Z > > > Who Will Element of o- o- BMP Potential Problem m a m 2 How to fix problem Address Comments p Y Problem m beatrnent facility the Idea l E_noessive bash, Remove Immediately Owner or debris, or sediment professional There Is evidence of changing (standing Identify and eliminate the source water, noticeabts of the problem. ti necessary, odors, water stains, remove and clean or replace the Professional algae or Floating cogged material. Pre -Treatment aquatic vegetation, on/ rease (continued) There is evidence of Omer fi Omer or erosion a1M / p Stabilize immediately professional exposed soil There is dead Resmbilbe and revagetate as Owner or vegetation or exposed mmry professional soil in the gm. filter Check for sediment build-up M cum cuts, gravel diaphragms or Remove sediment and coned pavement edges that any other problems that block Owner fir prevent flow from Inflow. professional getting into the bed, and check for sing. There is excessive Owner or Inlets bash, debris, or Remove immediately professional sediment. There is evidence of Repair erosion damage and Owner s Omer r erasion fits around reseed or otherwise rembitize me inlet with station Remove woody vegetation from Inflow is hindered by points of inflow and directly above Owner or trees and/or shrubs. underdmins. (Trees and shrubs professional may be located closer to the dmeter. Identify the source of erosion There is evidence of damage and prevent itfrom Owner er ror Omer rill or gully erosion or recurring. Repair erosiom n damage sional bare soil and reseed or omerwtse Destabilize with vegetation Side Slopes (Annually, after There Is excess Owner or mafwsterma) sediment Remove Immediately professional accumulation Animal burrows must be Side slopes support backflled and compacted. Professional nuisance animals. Burrowing animals should be humandely removed from the area. Plant cempceftion is Determine if existing plant consistent with the material. are at least censistent approved plans and with general Bioretention design Professional any stakes or wires crlterla and replace Intxmetstent are In good mrdalon. species. Warned (m^^�N) There should be 75. 90% cover (mulch plus vegetation), and Supplement vegetation and mulch the mulch cover as needed. should be 23 Inches deep. 9-C-29 July 2013 Virginia Stormwater 11 anagement Handbook, Chapter 9 Z=Z > > N Who cow Element of m n No BMP Potential Problem E • a • to fix problem Address Comments o m & Problem Q. rc Replace contaminated mulch. If There Is evidence of problem perskes, 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 plain may all need to be replaced in growth or mortality,•ccorda^ce with the approved construction plans. Invasive spades or Remove invasive species and weeds make up at excessive weeds immediately and Owner or least 1s of me replace vegdation as needed. professional Vegetation d fepli s on (morimly) Mow within a week. Grass (ceminued) species should be selected that have dense cover, are relatively Owner or The grass is had high sow growing, and require the professionalleast mowing and chemical inputs. Gress should be from 8-10 inches high. Vegetation is Remove and replace. Increase diseased, dying or wa[etlng, but avoid using Professional deed chemimi fertilizers, unless abandmely necessary. Winter-killedor sae- Owner s killed vegetation is 111 Replace with hardier spades. pPpfeggbga ant. Raise the level, loosen and amend or replace the media, as needed, to be consistent with me The filter media Is too state design criteria for low, too compacted, Bioretention (85.88% sand 8-12% orthecomposition'e soil fines 3-5% organic matter in Professiomi inconsistent with form of leaf compost). Other design specificatlom remedlation options are described In the maintenance section of the state design criteria for Blorefrntion The mulch is rider then 3 years or is The mulch mud be replaced Professional omerMse In poor every 23 years condition Filter Madre There Is evidence that Remove untleslreble chemicals (AnnUW chemicals, am, s, from media and facility and/or oil/grease are oil/grease immediately, and replace mulch Professional present or media as needed Remove trash and debna immediately. Check plant health There is excessive and, wimout damaging plants, Omer er Oms trash, debris, er manually remove me sediment, ional sediment. especially If me depth exceeds 20%of the facility's design depth. There Is Evidence of Identify the source of erosion concentrated flows, damage and prevent it from erosion or exposed depending. Repair the erosion Professional soil damage and reseed or, olhem7se destsblize with vergetuallon. kx 6i Virginia Stormwater Management Handbook, Chapter 9 July 2013 z zz >> > Who WIII Element of Potential a �r qm® How to fix problem Address Comments BMP Problem 0 0 8 The filter bed is dogged and/or filled Redldributs the soil subdrate and Profeesmnal ns ro ride remove sediment within 2 weeks. Ensure a 34nch surface depth of Filter Media The topsoil is in poor topsoil consisted with the date (Annually) (e.g., the pH design criteris for Bioretention (continued)condition the level is not 6-7nal (loamy sand or sandy loam Professio , composition is leaders, with less than 5%uday inappropnata, etc.) content, and organic matter cement of at least 2%). If the pH Is less than 6.5, spread limestone. Ddannine If am pipe is clogged The perforated pipe Is swim debris or 0 woody roots have not conveying water pierced the pipe. Immediately Professional as designed clean out or replace the pipe, as necessary. Measure me draw -down rate of the observation well forthree days following a storm event in excess of 12Inches in depth. .After three days, if there is The underlying soil standing water on top but not in Interface is clogged the underdrain, this indicates a Undemrelnl (there is evidence on clogged soil layer. If standing Proper the surface of sdl water is both on the surface and Drainage posting, standing in the underlmin, men the voter, the facility does undendraln is probably clogged. not dershi betweenThis should bepromptly Professional dorms, or water investigated and remediated to ponds on the surface restore proper filtration. Grading of basin far more than changes may be needed or 48 hours after an underdrain repairs made. The event) filter media may need to be raked, excavated and cleaned Ear replaced to correct the problem. Holes that are not consistent with the design and allow, water to Dow directly through a planter 0 the round most be plunged. The planter's unable torecelve er detain sformwater Prior to Identify and correct sources of Infinration. Water clogging. Topsoil and sandip rat Owner or does not drain from layer may need to be amended professional me reservoir within 3. wire sand or replaced all together. 4 hours of after a PIE fare storm event. The planter has structural deficiencies, including not, cracks, Make needed repairs Owner orand failure, came immediately. professional planter is unable to contain the finer media or vegetation Outlets are obstmded OuleU or erosion and soil Remove obsbudions and Owner er Ovemow expposure is evident staddize eroded or exposed Professional Splumay below the outlet. areas. July 2013 :�Z > > i WhoWill Element of a aN BMP Potential Problem E 01 • O1 m How to fix problem Address Comments p Y ` Problem a` a tx Outlet/ There is excessive Remove immediately, and keep Owner or Overflowsediment trash, debris, or me contributing area free of bash professional at the outlet and debris. (Spiritedlycontinued) cemintred) grease present Repair or replace es necessary Omer s are In condition professional Observation Is the observation well Repair, as necessary. Professional Well still capped? Establish adequate access. Access W the Remove woody vegetation and Professional IMlltmtbn facility s Ina debris that may block access. end, perhaps,txmpoueofs is Ensure that hanhvare can be the locality adequate opened and operated. There is evidence of Fill In low spots and stabilize; Owner or water problems causing carted gory Professional ndin . Eliminate stangant pools and establish vegetation; treat for Overall mwquitoes as needed. If sprays Mosquito prdDeration are considered, men a mosqule Owner or larvicide, such es Badllus professional mumM.nsis cr Altaside formulations min be applied onlyff absolutely necessary. Complaints from local correct real Problems Owner Ca residents professional Encnesirm ent on the Inform involved property owmrs Owner p bioretention area or eesemam by of BMPs status; clearly mane the professional a or other boundaries of me receiving (and perhaps Structural pervious area, as needed the locality) BIORETENTION FACILITY MAINTENANCE REQUIREMENTS No Scale 9-C-31 VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com •��•0 s 0 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. • Iblemarle 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 kD. Cichoclu Lie. No. 53741 12,11/10 7rJ0 Ia7 Checked By Designed By Drawn By Be CICHOCKI K. ROESER K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL 1 FINAL SITE PLAN & WPO PLAN SUBMISSION 2 FINAL SITE PLAN RESUBMISSION #1 3 WPO PLAN RESUBMISSION #1 DATE 10.AUG.2020 25.NOV.2020 02.DEC.2020 BMP MAINTENANCE C6..4 V)VX D O a a a a a coa L LO a 'a a L O O t t x '° a co u� L o C O C C ^ C u0') W uMY ,..� O` _ O _ C 0 W) U')) a0-- 0) Lo M O � .r,,. .�. � H r,,. � Ov (v (O N M N N O i0 CS O °0 coO N O N .'C N O) a= U) O M O Co Q) L (O O 0) O O N L pj �_ (O co M O o1 0) u') a-- N it1 u7 " 01 uo U� F. O �O V O '� (0 M O (O n O Cl) °0 °0 0) °0 fM (O 0) O 0) w O u') °0 04N '- 00 '2 4�N '0 0r 00 2 + 0(0 ~ a-M 0) 0) In V O M0 -(0 04 0 MoiN (O + (n O0Oj OEM �" 00 ��(O Z_ 0 2000 (O (O � M } ODM H Cl) + 00 � NAM + O°0 F W a W �1-0 fn O°D (n OaO7 d �`_'hZ_ Z_ N pC)(O00 D W .--00 _O0Z W �roZ W �(0 Q O 0.-rZ Qa_ aa> o - o O �OZ z 66a(L > Qa_ O Qa0 Qa_ Qa_ O g �0z v~i�? o HOZ 0 (4�? U~- - ���z z z ��OZ z Lo 0 oo ~Oz ~0z z Ln(nr_ -cn�__ (n�_ -(n�_ �(ni-- 730 730 710 710 720 720 715 715 705 705 725 725 720 720 715 715 710 PRO G OSED E 710 705 705 766 505 OF "HDP700 E 700 EXIS GR 695 ING DOE gD 1260 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 7 680 EXISTING GRADE 501 35.90' OF 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 1 710 705 705 700 700 EXISTING GRADE ROPOSED GRADE 695 695 3' MIN. 690 690 685 685 133 17.59' OF 18" HDPE @ 0.82% 680 680 STORMTECH DETENTION WITH ISOLATOR ROW 710 710 705 1 PROPOSED 1 705 L:DE EXISTING GRADE 700 J - 700 1. 'MIN. 3' MIN. 695 695 151 149 94.03' OF 147 172.49' OF IV, HOPE 40.86 OF 15" HDPE ( 0.75% 690 15" HDPE 0.68% 690 @ 0.95 APPROX. LOCATION OF EXISTING WATER 685 LINE. LOCATION AND 685 DEPTH TO BE FIELD VERIFIED PRIOR TO CONSTRUCTION. 680 680 675 675 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 M V 0 O N O o ov nr; - rn� 2 Lo o od _ •-- co �_ �_ M �_ N EC00 .. ov O r ` 0) O w� N p O M N V M M N °0 M a= vN0 v, M ^ v,�(o(o n Mom °n6 mrrnrn N N 126:MH-1 a�v 0 Co U M M (00 N LO 6) r coI-- (O N Lq n r` (O 0 O (M (0 m o r� n + W 0� H���(n0 ' �0°D M u7 O to O L N STA 10+02.44 > (� + (OF 0) ri 0 -p + p 0) � (b O + (r0 o � = o 00 � = 0 Co = 0) (0 �P(OO Z 0 0) � TOP 681.58 °) NLL7(O 'J - CD w �(oz g�mz 0g�coz z O g�(oz_ 0 o6aa» iCaa> v Eo0U INV IN677.63(107) NoQ(L M�O> �UFz 0�0> oFaO»NH0O»> Ui? �UFz z�UPz z z ���z z �U)�z INV IN677.63(127) o F0> INV OUT 677.53 (105) Cl) 720 720 705 705 715 715 700 700 715 715 710 710 705 705 EXISTING GRADE 700 700 PROPOSED GRADE 695 695 690 1 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 L 685 GRADE 685 129 i 54.73' OF 21"DP 680 980 40, I 105 45.98' OF 39.84' OF 675 127 675 2 @ 0.50/o 0 @ 0.50% 6 .08' OF 2 "HOPE 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 700 695 695 690 -3'IV IN. 690 145 27.69' 0 12" HOP 08.00% 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 r 680 O 107 23.50' OF 675 12" HDPE 675 0(i 1.57% 670 670 665 665 660 660 138A: 12" Nyloplast Basin - Solid Cover- STA 10+75.75 TOP 697.31 INV IN 689.39 (139A) INV OUT 689.29 (139) 138: 12" Nyloplast Basin - Pedestrian Grate STA 10+64.08 TOP 696.75 INV IN 689.17 (139) INV OUT 689.07 (137) 136: DI-3C 6 ft Throat STA 10+16.94 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: 1"=50' VERT SCALE: 1"=5 EXISTING 700 GRADE 700 695 695 690 690 PROPOSED GRADE 4685 685 2.3' 680 109 113 680 12" HDPE 6 .49' OF @ 3.00% 12' HDPE Cm 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 139B: 12" Nyloplast Basin - Solid Cover STA 10+95.55 TOP 697.56 INV IN 689.80 (139B) INV OUT 689.59 (139A) 140: 15" Nyloplast Basin - Solid Cover STA 11+26.47 TOP 692.75 INV IN 690.11 (143) INV IN 690.28 (141) INV OUT 690.11 (139B) 715 715 710 710 705 705 700 700 EXISTING GRADE PROPOSED GRADE 695 \ 695 690 - - 690 141 27.85' OF 8" HDPE @ 1.50% 685 135 137 47.14' OF 139A 685 18.89' OF 19.80' OF 139B 15" HDPE 12" HDPE 12" HDPE 30.92' OF @ 1.25°k @ 1.25% @ 1.00% 12" HDPE @ 1.00% 139 680 11.67' OF 1 680 12" HDPE @ 1.00% 675 675 - 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 m f0 M_ m N I V m 0.O N Lo M Z o lr o 0 (0 �(o ZZ0 _ O Lo CL 6F0>>> wi z- z 715 710 710 705 705 700 700 695 FPROPOSED GRADE 695 Iu690 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 VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com •��•00 s 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 Checked By Designed By Drawn By vj kD. Cichocld 'Z lie. No. 53741 12/1/26 A B. CICHOCKI K. ROESER K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN 8 WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 STORM SEWER PROFILES C7n0 UNDERG DETENTIOI` 216: 18" Basin - Circular Grate f6 � 0 O) O N °D�QI W U�ro M+r�F 0000Z) 0' 0 M U) 7n-r MAU 700 700 695 695 690 690 685 685 ROUND SVVM 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 685.21 222: 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) 710 710 705 705 700 695 690 700 695 690 PROPOSEIE GRAD EXISTING GRADE 685 685 3' MIN. / 680 680 22'1 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 c N m ^ IM N O o L0 T Cq Z 00 (o O 0) Z) C0 0 �0> O U�? 715 715 710 710 705 705 700 700 EXISTING GRADE PR POSED BADE 695 695 690 690 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) 224: 12" Basin - Circular Grate STA 10+48.53 TOP 690.23 INV OUT 681.09 (223) 710 710 720 705 705 700 700 695 695 PROPOSED GRADE 690 690 EXISTING GRADE 685 685 680 680 ArO0',. p# I L0 675 675 670 670 9+50 10+00 11+00 STR 208 - STR 224 HORIZ SCALE: 1 "=50' VERT SCALE: 1 "=5 M xNx tM W rn O M O M �0°0 (MO _ + N O H ��(0Z O N (n0Z Z 715 m m ro E 0 0 �N m N N N d O n Lo Z 0M CMO + O H 0 oCDO Qa> CM ;oZ 212: 18" Basin - Circular Grate 214: 18" Basin - Circular Grate STA 12+68.62 STA 12+87.86 TOP 683.10 TOP 683.75 INV IN 678.05 (213) INV IN 679.96 (215) INV OUT 677.95 (211) INV OUT 678.24 (213) 210: 18" Basin - Circular Grate STA 12+30.28 m m 206: MH-1 TOP 682.06 �° ° V STA 10+71.73 INV IN 677.66 (211) (D 220: 24" Nyloplast Basin - Dome Grate I_- N TOP 681.19 INV OUT 677.56 (209) ca n STA 13+66.81 w ca0o INV IN 676.67 207 ( ) 208: 18" Basin - Circular Grate 0 .-. r r- � N TOP 685.75 O Co 0 o INV OUT 676.57 (205) STA 11+85.32 U v V o INV IN 681.60 (219) 236: ES-1 for 15 inch Pipe `' o rn Z) 204: ES-1 for 18 inch Pipe TOP 680.70 c N INV OUT 681.50 (217) STA 10+04.64 o O °O Q a STA 10+04.36 INV IN 677.34 (209) N o Co ai cM 6 6 o 00 218: MH-1 TOP 686.56 > co U Z TOP 677.90 INV IN 677.34 (223) O o ro W o o j STA 14+08.23 INV IN 685.19 (237) INV IN 676.23 (205) INV OUT 677.24 (207) �+,� 00 o Z Z O TOP 688.12 F a0 > > > INV IN 683.04 (EX 229) N U P z z z INV OUT 682.94 (219) 715 715 715 700 700 710 710 705 705 700 700 PROPOSED GRADE EXISTING 695 GRADE 695 690 690 4 685 685 680 233 680 89.73' OF 15" HOPE @ 0.90% APPROXIMAT OF PROPOSE LOCATION GEOTHERMA WELL PIPES 675 1 675 9+50 10+00 11+00 STR 232 - STR 234 HORIZ SCALE: 1"=50' VERT SCALE: 1"=5 n 0 M 0 41�� Cq F 0- M N O O C5 CN M r, 00 W M a 0 m�Lq0 +00 H M+OIF (00 2'�ZZ0 O�00 a Fp»>FO> �UFZZZ 1U0Z 720 715 715 710 710 705 705 PROPOSED GRADE 700 1 EXISTING GRADE 700 695 695 153 61.33' OF 12" HOPE @ 0.75% 690 690 685 685 680 680 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 GROtDE GRADE (STING 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-313 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 700 700 695 695 690 690 EX 403 EX 407 36.21' OF EX 405 38.02' O 15" RCP 14.46' OF 15" RCP 0 ° 15" RCP @ 0.87° 685 @ 0.83% 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 PR POSE 685 GRADE 685 EXISTING GRADE / 1 f - - - - - ` J L 680 \ '- 219 680 41.43' OF 217 E 15" HOPE 215 57.11T OF 15 3. 21.76' OF 15" HOPE 207 20 9 15" HDPE @ 1.75% 675 113.61' OF 4 980E @ 2.00% 675 18" HOPE 0.50°k @ 0.50%cc) 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 A6130 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 50 OFILE SCALE 14+00 14+50 310: 24" Nyloplast Basin - Dome Grate D STA 12+22.67 n TOP 684.00 9 rn M INV IN 679.32 (311) INV OUT 679.22 (309) M q, OO r o rn o6 CO 312: 12" Basin - Circular Grate o 0 o Z) STA 12+43.94 `O Z O TOP 686.51 O 6 z z INV IN 679.82 (313) e) U ~ _ _ INV OUT 679.72 (311) 705 700 700 695 695 690 690 PRO 0SED RADE / 685 685 WEIR PLA EXISTING UNDERGROL GRADE DETENTION ; / (0.2% SLOPE 680 680 313 24.57' F 15" HOPE @ 0.75 675 305 4" SOLID 675 42.99' HOPE WITH 311 15" HDPE INSERTA TEE 88 28' OF 309 21 27' O @ 1 40 /° CONNECTION 15" HOPE 33.53' O 15 @ 1.73% 15" HOP @ 1H90% @ 3.40° 670 670 30 45.93' O 15" HOPE EXISTING 8" @ 1 38° SANITARY SEWER 665 665 9+50 10+00 11+00 12+00 STR 302 - STR 310 HORIZ SCALE: 1"=50' VERT SCALE: 1 "=5 TE ND iVVM 2 i 13+00 13+50 VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. • lbemarle 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 A-D.ld lie. No. 53741 12/1/26 Checked By Designed By Drawn By B. CICHOCKI K. ROESER K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN 8 WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 3 WPO PLAN RESUBMISSION #1 02.DEC.2020 STORM SEWER PROFILES C7ml ROUTE PROJECT CROZET ES DESIGNER: A. BARNES CHECKED: DATE 121212020 UNITS:NGLISH LD-229 STORM SEWER DESIGN COMPUTATIONS INLET z �d^a a5 ¢ O 4 U U w a aYy O cis nOU ° S B w � a� w � 5 Sag Inlets Only a m F S a a a v 5 N 132 DI-3C 6.000 0.190 0.89 0.169 Back/Lt. 0.000'RIGITr 0.169 4 0.676 0 0.001 0.0370 5.704 0.351 0,0833 2.251 3.11 Back/Lt. 0 4 0 0 Ahead/RL 0.676 0.001 ]2.000 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 Back/Lt. 0.000'RIGHT 0.192 4 0.768 0 0.001 0.0330 6.447 0.31 0.0833 2.524 3.21 Back/Lt. 0 4 0 0 Ahead/Rt. 0.768 0.001 6 0.768 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 Back/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 Back/Lt. 0 4 0 0 Ahead/Rt. 0.036 0.0010 1.000 1 0.036 0.532 0.166 2.532 2.132 Weir Flow 146 DI-3B 8.000 0.170 0.83 0.141 O'RIGHF 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 Back/Lt. 0.000'RIGI-IT 0.159 4 0.636 0 0.0180 0.0300 2.508 2.000 0.797 0.0833 2.777 3.28 Back/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 0'RIGHT 0.059 4 0.236 0 0.236 0.0350 0.0208 1.331 2.000 1.503 0.0833 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 0'RIGHT 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 Back/Lt. 0.000RIGHT 0.057 4 0.228 0 0.0162 0.0704 1.517 2.000 1.318 0.0833 1.183 2.31 Back/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 Back/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 Back/Lt. 0 4 0 0 Ahead/Rt. 0.080 0.001 1.500 1.5 0.080 0.691 0.166 4A91 2.770 Weir Flow 212 DI-1 1.500 0.025 0.90 0.023 Back/Lt. 0.000'RIGH 0.009 0.35 0.003 Back/Lt. 0.026 4 0.104 0 Back/Lt. 0 4 0 0 Ahead/Rt. 0.104 0.001 1.500 1.5 0.104 0.721 T> 8.0 It 214 DI-1 1.500 0.020 0.35 0.007 Back/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 Back/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 -I 1.500 0.020 0.90 0.018 Back/Lt. 0.000'RIGB 0.050 0.35 0.018 Back/Lt. 0.036 4 0.144 0 0.0079 0.0779 1.461 2.000 1.369 0.0833 1.069 2.13 Back/Lt. 0 4 0 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 Back/Lt. 0.000RIG 0.050 0.35 0.018 1 1 1 1Back/Lt. 0.027 1 4 10.108 0 1 1Back/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 Back/Lt. 0.000'RIGHT 0.018 4 0.072 0 Back/Lt. 0 4 0 0 Ahead/Rt. 0.072 0.0100 1.000 1 0.072 0.739 T> 8.0 It 234 DI-1 2.500 3.420 0.45 1.539 Back/Lt. 0.000RIGI-IT 1.539 4 6.156 0 Back/Lt. 0 4 0 0 Ahead/Rt. 6.156 0.0100 2.500 2.5 6.156 11.605 T> 8.0 It 238 DI-3B 8.000 0.290 0.88 0.255 O'RIGHT 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 Back/Lt. 0.000'RIGHT 0.432 4 1.728 0 0.0340 0.0290 4.182 2,000 0.479 0,0833 2.972 3.30 Baek/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 Back/Lt. O.00ORIGB 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 Back/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 Back/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 Back/Lt. 0 4 0 0 Ahead/Rt. 1.508 10.0240 6 1.508 2.003 0.192 0.333 0.5766 4.003 6.956 Weir Flow EX DI-1 1.000 0.060 0.35 0.021 Back/Lt. 0.000RIGI-IT 0.021 4 0.084 0 Back/Lt. 0 4 0 0 Ahead/Rt. 0.084 0.0100 1.000 1 0.084 0.741 T> 8.0 It EX400 DI-3B 6.000 0.240 0.90 0.216 Back/Lt. 0.000RIG 0.080 0.35 0.028 Back/Lt. 0.244 4 0.976 0 0.0270 0.0330 2.929 2.000 0.683 0.0833 2.524 3.21 Back/Lt. 0 4 0 0 Ahead/Rt. 0.976 0.0270 6 0.976 1.499 0.264 0.333 0.7928 3.499 3.784 Weir Flow EX408 DI-3C 6.000 0.120 0.75 0.09 Back/Lt. 0.000'RIGHT 0.09 4 0.36 0 0.0490 0.0218 1.464 2,000 1.366 0.0833 3.821 3.48 Back/Lt. 0 4 0 0 Ahead/Rt. 0.360 0.0490 6 0.360 0.771 0.174 0.333 0.5225 2.771 2.945 Weir Flow Culvert Calculations C Area Impervious Pervious C*A 110 yr 125 yr Q 10 yr Q 25 yr 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 STORM FREQUENCY 10 PROJECT: CROZET ES Designed by: LOCATION: ALBEMARLE COUNTY COUNT: Free Union Checked by: UNITS ENGLISH PIPE NO. FROM POINT TO POINT DRAIN. AREA "A" Acre (3) RUNOFF COEFF. "C" (4) CA INLET TIME Minutes (7) RAIN FALL In/Hr (8) RUNOFF INVERT ELEVATIOM LENGTH of Pipe Ft. (12) SLOPE Ft./Ft. (13) SIZE (Dia. Or Spao/Rise) In. (14) SHAPE Number of Pipes Capacity CFS (15) Friction Slope Ft./Ft. NORMALFLOW FLOW TIME INCRE- MINT (5) ACCUM- ULATID (6) Lateral CFS Total Q CIS (9) UPPER END (10) EOWER END (11) Depth of Flow, do Ft. Area of Flow, An SgFt Urn Ft. Vn Ft/Sec (I6) En Ft. INCRE- MINT 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 67723 677.00 45.98 0.00500 21 Cacular 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 0.00502 21 Cucitlar 1 1216 0.00030 0.59 0.72 033 4.18 0.86 0.16 5.45 107 106 126 0.00 0.00 0.00 5.00 0.00 0.93 678.00 677.63 23.50 0.01574 12 Circular 1 4.84 0.00060 0.30 0.20 0.17 4.76 0.65 0.08 5.08 109 1110 1108 1 0.00 0.00 0.00 1 5.17 5.84 1 0.00 1.27 1 680.84 1 680.50 68.49 0.00496 12 1 Circtilar I 1 2.72 0.00110 0.48 0.37 024 3.40 0.66 0.34 5.50 113 swM#l'ot 110 0.00 0.00 0.00 5.00 0.00 1.27 684.50 682.79 57.15 0.02992 12 Cacitlar 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 67833 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 122 0.11 0.90 0.09 0.09 5.00 5.89 0.00 0.56 678.91 678.89 4.00 0.00500 8 Cacitlar 1 0.93 0.00190 0.37 020 0.18 2.78 0.49 0.02 5.02 125 126 122 0.00 0.00 0.00 5.00 1 0.00 0.00 2.50 1 681.10 678.89 1 53.22 0.04153 12 1 Circiflar 1 7.87 0.00440 0.39 028 021 8.90 1.62 1 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#l'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 Cacitlar 1 16.73 0.00030 0.50 0.57 029 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 5.05 133 134 SWM#1,IN 0.00 0.00 0.80 6.31 5.53 0.00 6.39 686.71 686.57 I7.59 0.00796 18 Cuciilar 1 10.15 0.00330 0.86 1.05 0.41 6.07 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 Circtilar 1 4.35 0.00740 0.65 0.54 029 6.08 1.22 0.05 5.48 137 1138 136 0.23 0.90 021 0.39 5.23 1 5.82 0.00 3.14 1 689.07 688.48 47.14 0.01252 12 1 Circular 1 4.32 0.00690 0.63 0.52 029 6.00 1.19 0.13 5.36 139 138A 138 0.00 0.00 0.18 5.19 5.83 0.00 1.93 68929 689.17 11.67 0.01028 12 Cucitlar 1 3.91 0.00260 0.50 0.39 025 4.97 0.88 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 0.90 023 023 5.00 5.89 0.00 1.38 690.11 689.80 30.92 0.01003 12 Circidar 1 3.87 0.00130 0.41 0.31 022 451 0.73 0.11 511 145 146 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 Cacitlar 1 10.93 0.00080 0.21 0.12 0.13 8.92 1.45 0.05 5.05 147 148 SWM41,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 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 0.17 023 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 Csnilar 1 2162 0.00000 0.11 0.05 0.07 6.95 0.86 023 5.23 153 154 148 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 Circrrlar I 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 0.20 038 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 5A8 1.55 037 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 1.00 0.40 6.66 1.52 0.05 10.71 215 216 214 0.07 OS 1 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 B103 216 0.00 0.00 0.00 5.00 0.00 0.00 1.73 681.50 680.50 57.17 0.01749 15 Crrcular, 1 9.26 0.00060 0.37 0.30 0.21 5.78 0.89 0.17 5.17 219 218 B103 0.00 0.00 1.34 10.43 4.67 0.00 6.34 682.94 681.60 41.43 0.03234 15 Circular 1 12.59 0.00860 0.63 0.62 0.31 10.27 2.27 0.07 10.50 221 222 216 0.32 0.90 029 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 0.75 030 0.30 5.00 5.89 0.00 1.76 681.09 677.34 46.92 0.07992 12 Cunilar I 10.91 0.00220 0.27 0.17 OA6 10.21 1.89 0.08 5.08 233 234 232 3.82 1 035 1.34 1.34 10.00 4.74 0.00 6.34 685.20 684.39 89.73 0.00903 15 Circular 1 1 6.65 0.00860 0.98 1 1.03 0.38 1 6.17 1 1.57 0.24 1024 237 238 236 0.28 0.88 025 0.25 5.00 5.89 0.00 1.45 68526 685.19 14.04 0.00499 15 Caciilar 1 4.94 0.00040 0.46 0.41 025 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 Cuclilar 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 1 827 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 0.34 793 1.69 0.19 5AI 309 310 308 0.00 0.00 0.00 5.00 0.00 1 0.00 5.78 679.22 678.08 33.53 0.03400 15 Cucilaz I 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 5.30 122 0.08 5.08 315 316 SWM42,IN 0.54 0.78 OA2 0.42 5.00 5.89 0.00 2.48 683.29 682.26 12.18 0.08456 15 Circular 1 20.35 0.00130 0.30 0.22 0.17 11.24 226 0.02 5.02 EX 15" IX 400 134 0.32 0.76 024 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 EX 230 218 0.00 0.00 1.34 10.34 4.69 0.00 6.34 683.52 683.04 35.62 0.01348 15 Circrrlar I 7.50 0.01010 0.88 0.93 0.37 6.86 1.61 0.09 10.43 EX 231 232 EX 230 0.00 0.00 1.34 10.22 4.70 0.00 6.34 684.39 683.88 51.06 0.00999 15 Cuciilar 1 6.46 0.01010 1.01 1.06 0.38 6.00 1.56 0.14 10.36 EX 401 402 EX 400 0.32 0.78 025 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 EX 403 404 402 0.00 1 0.00 0.31 5.23 5.82 0.00 3.61 691.87 691.42 36.21 0.01243 15 Cuclilar 1 7.20 0.00330 0.61 0.61 0.31 5.87 1.16 0.10 5.34 EX 405 406 1 404 1 1 0.49 1 0.75 1 0.37 1 0.62 1 5.18 1 5.83 1 0.00 1 3.61 1 692.04 691.92 14.46 0.00830 15 1 Cawilar 1 5.89 0.00330 0.71 0.72 0.34 5.04 1.10 0.05 5.22 A 407 EX408 1 406 1 1 0.15 1 0.83 1 0.13 1 0.13 1 5.00 1 5.89 1 0.00 1 0.74 1 692.37 692.04 38.02 0.00868 15 Cu-dar 1 6.02 0.00010 0.30 022 0.17 333 0.47 0.19 5.19 LD-347 HYDRAULIC GRADE LINE ANALYSIS INCIDENCE PROBABILITY 10 Year PROJECT: CROZET ES DESIGNED BY: Checked: INLET STA. OR JUNCTION INVERT EL. OUTFLOW PIPE DEPTH OF FLOW OUTFLOW PIPE OUTLET WATER SURFACE ELEV. DA. PPE Do (6/mm) DESIGN DISCH. 00 (CFS/CMS) LENGTH PIPE Lo (FVM) FRICTION SLOPE, Sfo (FT/FT) (ANM) FRICTION Hf LOSSTV(F (FVM) JUNCTION LOSS SURFACE FLOW Adj. Ht 1.3 Hit (FVM) Inlet Shaping? Y/N 0.5 Hit (FVM) FINAL H (FVM) Inlet Water Surface Bev anon Top of MH Top of Inlet Bev. APPROX. Adjustment? vi Vi'2/2g Hi (Expn) 0.35*NAX. (Vi22g) SKEW Angle K Bend H (FUM) Sum HL (FVM) 0 ) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (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 0.000 0.463 0.000 0.463 YES 0.232 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 5261 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 1 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 1 1 1 681.300 110 1 1 680.500 1.00 1 681.300 12 1.270 68.49 1 0.00113 0.078 3.404 0.045 1 6.545 1 0.665 1 0.233 0.0 1 0.00 0.000 1 0.278 0.000 0.278 YES 1 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 0.000 0.0 0.00 0.000 0.107 0.000 0.107 YES 0.054 0.071 686.451 686.500 O.K. 204 677.430 206 676.230 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 O.K. 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 690230 O.K. 210 1 677.340 1.50 1 678.540 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 1.50 678.862 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 1 7.084 0.195 0.000 0.000 0.000 0.0 0.00 1 0.000 0.195 1.695 1 0.253 YES 1 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. 218 681.600 125 682.600 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. EX230 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 0.548 684.588 691.380 O.K. 232 683.880 125 684.885 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 O.K. 234 684.390 125 685.572 1 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 686438 689.300 O.K. 302 676220 304 675.220 125 676.220 15 5.780 45.93 0.00713 0.328 7.239 0.203 7.288 0.825 0.289 0.0 0.00 0.000 0.492 0.000 0.492 YES 0246 0.574 676.794 680.010 O.K. 306 675.850 1.25 676.850 15 5.780 42.99 0.00713 0.307 7288 0206 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 O.K. 308 676.450 1.25 677.450 15 5.780 88.28 0.00713 0.630 7.928 0.244 10226 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 1.25 679.080 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 0.599 679.806 684.000 O.K. 312 679.320 125 680.320 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 O.K. 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 O.K. 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 O.K. 138A 689.170 1.00 689.970 12 1932. 11.67 0.00262 0.031 4.968 0.096 5200 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 O.K. 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 O.K. 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 O.K. 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 0243 0.301 689.301 696.450 O.K. EX400 686.980 1.25 689.301 15 6.385 1919. 0.01021 0.196 7.937 0245 5.816 0.525 0.184 0.0 0.00 0.000 0.428 1.353 0.557 YES 0278 0.474 689.775 696.680 O.K. 402 688.530 125 689.775 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 0207 2.173 692.450 698.380 O.K. 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 O.K. 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 O.K. EX408 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 O.K. 132 688.760 1.00 689.560 12 0.995 2421 0.00069 0.017 8.656 0.291 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 O.K. 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 O.K. 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 0207 0272 694.597 700.110 O.K. 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 O.K. 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 0201 0224 691.194 696.690 O.K. 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 O.K. SWM#2, IN I I I I I I I I I I I I I 1 1 683.000 316 682.260 125 1 683260 1 15 1 2.483 1 12.18 1 0.00132 1 0.016 1 11238 1 0.490 1 0.000 1 0.000 0.000 0.0 0.00 1 0.000 1 0.490 1 2.483 1 0.637 YES 0.319 0.335 683.595 687.790 O.K. V)VX D O VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com 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 kD. Lie. No. 53741 12/1/26 7r/O I�7 Checked By Designed By Drawn By ti B. CICHOCKI K. ROESER K. ROESER ISSUES AND REVISIONS NO. SUBMITTAL 1 FINAL SITE PLAN 8 WPO PLAN SUBMISSION 2 FINAL SITE PLAN RESUBMISSION #1 3 WPO PLAN RESUBMISSION #1 STORM SEWER TABLES DATE 10.AUG.2020 25.NOV.2020 02.DEC.2020 C7n2 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 CDR 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 ALIT SEDUM X •AUTUMN JOY' 794SF \ U U U L==• o 1,296SF \ v v v CONCEPT PLANT SCHEDULE �00 ® - - - ; /i ' MEADOW PLANTINGS 12,901 SF SEE SHEE ,i �� !�/�;: SEE SHEETL2.0 .� ��: L1.1 OR DETAIL \ \ 6 LANDSCAPE PLAN COURTYARD PLANTINGS 1,755 SF RELOCATED 8X8 N \ iiIectableAutumn Joy' SHED Sedum s ' A A 1 Carex s P v w� I - Panicum virgatum'Shenandoah' - Osmunda cinnamonmea �► I l _ �684 O A v v I A - Heuchera villosa 66 O v v v v ill II - HYPericum calycinum d �" ' •'� I ),,•,•,•,•,• ��`,a - ��� FRz�� y vv A ' ich' O SG - Itea vignicaP(8) GIN PaIlex gra O -� 89 r O 1 PLA OCC - 688- v v v v BUS LOOP BIO-FILTER PLANTINGS 2,903 SF ;• — - v PARKING LOT LANDSCAPING KEY I 6 ' �' r 689^PE� 1\\ Iteavir inica'S rich' 5 SF -I`, �� • 00 9 P ! w, O O ` ^ - Comus serica 'Kelseyi' 8 / I j `� - Fothergilia gardenii'Mount Airy' 6g % / - Ilex glabra 'Compacta' SCALE 1"=60' - A v V 1 p v I �' -�� 892 Vv v \v - Ilex verticillatta 'Red Sprite' PARKING LOT LANDSCAPING 3,965 SF _ _ �69 - 1376 SF� w v� Juncus effusus -_ v 0 60' 120' sTg I \ \ \\\ \ PLAYGROUND PLANTINGS 1,273 SF -68 \ \ \ \\ \ \ \ \\\ \ Panicum virgatum'Shenandoah' O- e A \ v V A - Hypericum calyclnum Carexs P. Calamagrostis x acutiflora' Karl Foerster' 421 $F v '"' ` \ ` vA �v\ ��vV m Sedum spectabile'Autumn Joy' agoz p - -FL�ER Bl0PLANTINGS 2,040 SF CareXJuncus effusus 266 Lobelia cardinalls I I - Itea vir mica 'S nch' - 6919y�� _ / / / �/ / / / �/ y(o \ v Panicum virgatum'Heavy Metal' 315 SF\(� \ RAIN GARDEN CONCEPT PLANTINGS 1,257 SF b0 0 171 SF / , / / v V Carex sp. - Juncus effusus - Lobelia cardinalis >sg, _ v Y/ �' / /,/ /� / / MEADOW v n.virginiia'S PLANTINGS\ - Pa9 m HeavY Metal' \ - Acorus calamus TYP. �v vv\ - Rudbeckia hirta Asc a asI i ri s aca BUILDING P Y _ ADDITION = EXISTING SCHOOL BUILDING (42)JUN EAS 697 BUIL SEE SHEET ADDIDTIION \ L1.2 FOR DETAIL ;98 LANDSCAPE (3) PLAN �iyiy COR FLO p�di NJ— -- 701 1 3 ii4yyiiii4i4i �% o' , A �b — -o - ® I(5) GIN PSG o (3) JUN EAS o -I 00 �i°'(3) BET RI. ,�i• �iii� \ 1 / , / \ \. \ ,W W f W --�— �6-vv 1 F iii 888 GPI -.- -I- J 6'y I \ ,; iii / 2 ,�•,, .i ,' SEE SHEET .. L1.2 FOR DETAIL (9) PLA OCC V I, �,• a �,,y / / LANDSCAPE PLAN o � , � I r (41)SEDAUT $� (5) QUE PHE �� �p^� o� 07\ (8) TlL CDR 09k (62) RUD HIR (65)PAN SHD I \ 'G (11) ILE GLA 683__ I/ � � I' • ; 149 JUN EFF _ _ { I 8 ILE RED' � �� �� 02 i � —/ ` (53) SED AUT v _ (21) ILE GLA ��1 ' o O 1 NYS SYL 1 - (53) PAN SHD -- (5) E RED -- ca7 - rn (34) ILE DWA - (1) QUE PHE - 0 - 30 ILE DWA 5 IL D o rn ' ( ) � _ - - O)SED ALIT �. q � � nodµ, � � , .: \(1) ACE RBR d� -- - O ET RI t:3) PLA OCC 0 (26 CAL ATH, V \ 702 - 82 7 i III` i \ r 1067�SIF 6c�s 8F SF - l , �482SF - - 744 SF 6 I i \ Z93SE _--- _ - - _ - --- - ---- ,. �- • / / O� - - - - - - —_ _ - �97) YP CAL - , • n _ - - 1 - - _ _\ - - - - 86) PAN HEA I � (4) ACE RBR / / , � � 1 � _ _ _(110) PAN SHD - � - � • ,= _ - - (92) ECH FUR (33) PAN SHD (24) ITE SPR - _ - I 20 ITE SPRY 77 RUD HIR (7� JUN EFF y �� (122) SED ALIT v _(14) ITE SPR a� w (3 ACE RBR o� -- --- - - - --- REMAIN - TYP. 1� ` / �- o r --- ---- i i � _ �� � UFO — -, �v v R pZ E ____-- —_� UFO - _ — — �- _ - _ - - �o C ^IP- �- _ - _ aHr __-- _------- m ___� =-r --UPO— — sov - 705- _0110 o -- -- __-- - _ - �. - _ - - _ _ - --- --------- o / -� UFO i' N slow - oH 700 �' - - - j05 _ - —_ -= Hp— ' \ _ -_ - F cos d 1 IOHP - SAS -------- --- \ SANS � �O �-�� � �O I $ E1 30 FO , \ s X n T � 0 30 J P_ 1 i VIA DO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com 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. HA C,�I[I 11 /25/20 F.HAN000K F.HAN000K M. RACHNER DRAWING NOT FOR CONSTRUCTION ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN 8 WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 OVERALL LANDSCAPE PLAN LlnO � I CONCEPT PLANT SCHEDULE BUS LOOP BIO-FILTER PLANTINGS 2,903 SF `• \\ Itea virginica 'Sprich' Corpus serica 'Kelseyi' l d - Fothergllls ggardenu Mount Airy - Ilex glabra 'Compacta' — 41 Juncus- Ilex rteffustus ta 'Red Sprite' \ �� \ \\ o p �� ° , — p a \ o — — — —Q — — — UGP � \ \ p / `V UGP — UGP UGP —UGP —UGP —. — —'6GP — — GP -' U p / — — �— — — - - - - "'_ ' PLAYGROUND PLANTINGS 11273 SIF p \ \ a a a uG uG u P , - Panicum virgatum'Shenandoah' \ \\ Q Q p' \ p GP gg8 - Hypericum calycinum uGP GP - care sp. \ — — — — — - Calamagrostls x acutiflora' Karl Foerster \ \ - - Sedum spectablle'Autumn Joy' RAIN GARDEN CONCEPT PLANTINGS 12257SF --_-----_-- -- —= — itr ----- ----- ---- -- --------------�_ __ - Carex s \\ \ — ' r - - --- - - - - Juncus effusus \ \ \\ ✓ W W I W W W W W W W W W W W W iW W W W Y W--- W W W W W W W W W W W W W W W W\ W W W W W\ - Lobelia cardinalis T \ W W W W' W W W W V W W W W W W W W W W W W \ \, - Itea virginica 'Sprich' v vv / W — W W W W w W - \ \ `` W W W �Y�- - Panicum lamuum'Heavy Metal' - - Acorlus calamius - Rudbeckla hlrta-- - Asclepias syriacaCo �— � \\s \\\ CO Co ------ \ W W / W W W W, W W W W W / / , ""�/ � , ' \ \ W � W W W W W W W w W - \ BUS LOOP BIO-FILTER PLANTINGS (2,903 sp _ �.- \ i Y � V `\ \\ W W W W W W W W W W/ W W� W/ W 'W W/ •• 00' 1 . . \\ \ \\ \\ / W W YI W W W W W W W� W W W// �I ������������������L������� ������7��� .�`` � _\ W W W W j_ S \ \ \ W W '1\W . W W W W W W IW/ W W W �. ♦�� \ I '��+ \ W- W W W I------- \\�0 I V �� WW W W 414��4* i A I A W W W �[/ IW W� / �11. I♦ \\ W W 4 \1 00 I o SCALE 1/8"=1'0" BUS LOOP BIO-FILTER CONCEPT PLANTING PLAN / / / / V . I • \ � 1----------- / . IF It �.Ir. ♦ ♦ —r ♦ / Co I. ♦ / ;: :; 10 R ♦� ♦��� ��.�► /. / l I too r , r' " , " , " / PLAYGROUND PLANTINGS (501 sf) ' PLAYGROUND PLANTINGS (771 St) ' 675 _ RAIN GARDEN CONCEPT PLANTINGS (1,257 sf00 00 if / f00 00 00 / / ' 00 / ,.�✓ \ fff. y. psi / ems. \ / I ' ♦ off' / / j i' I \ O / s�ff \—,. f� ��f f . . . 00,00s- 00 6 ��, / a��r.�.r,' — /. i I i Z + / 00 SCALE 1/8"=1'0" PLAYGROUND CONCEPT PLANTING PLAN 0 8' 16' VIA DO Architects 200 E Market Street Charlottesville, VA 22902 4,34.296.5684 vmdo.com 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 11 /25/20 F.HAN000K F.HAN000K M. RACHNER DRAWING NOT FOR CONSTRUCTION ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN 8 WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 DETAIL LANDSCAPE PLAN Llml CONCEPT PLANT SCHEDULE / I I , I , I , I , I , I� I , I I I , I I , I I , I / I I I \ I \ I \ 00 Co \ I \ WEST BIO-FILTER CONCEPT PLANTING PLAN / �'A / \ I / / I II� 1 I I I� / I i / I / / I / / 1 � / I SCALE V=10' 0 10' 20' /O \ \ d il. J 4 i l� I'll I / c� \ v COURTYARD PLANTINGS (143 Sf) Li \ _ a _ V � x z °ZI - \ COURTYARD PLANTINGS (172 So a a a ���►►► ` — � COURTYARD PLANTINGS (114 so��„_ \ \ COURTYARD PLANTINGS (116 so COURTYARD PLANTINGS (588 So i � W W W � I i ---------- --- ---- ------ -- ---- ---- -- ---- ---- - -- ---------- --- \---------- --- ,�--- -------------- ---- --------- \ \ I I \ ® 691 � COURTYARD CONCEPT PLANTING PLAN MEADOW PLANTINGS 12,901 SF SEE SHEET L2.0 COURTYARD PLANTINGS 1,755 SF -Sedum spectable'Autumn Joy' - Carex sp. - Panicum virgatum 'Shenandoah' - Osmunda cinnamonmea - Heuchera villosa - Hypericum calycinum _ - Itea virginica'Sprich' - Ilex glabra +++++++++ +++++++++ BIO-FILTER PLANTINGS 2,040 SF + + + + + - Carex sp. _ Juncus effusus - Lobelia cardinalis - Itea virginica'Sprich' - Panicum virgatum 'Heavy Metal' \ ■ ■ r v A ■ � A I ?. I I C9 ©v SCALE 1/8"=1'0" 0 8' 16' VIA DO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. eemarle 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 VMIDO Project Number 1284 Checked By Designed By Drawn By W. H III 11 /25/20 F.HAN000K F.HAN000K M. RACHNER DRAWING NOT FOR CONSTRUCTION ISSUES AND REVISIONS NO. SUBMITTAL DATE 1 FINAL SITE PLAN 8 WPO PLAN SUBMISSION 10.AUG.2020 2 FINAL SITE PLAN RESUBMISSION #1 25.NOV.2020 DETAIL LANDSCAPE PLAN L1n2 l 1 r � Professional Erosion Control Seed Mixture a a 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. Duran 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 turfgrass. Durana is durable and you can count on it to compliment a stand of tail fescue or berm ida 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 to plant: � _ -A' Primary Adaptabon ] Adapted to 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 berm idagrass in the spring. Planting depth should be no more than '[/. inch (6.35 mm) 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 FaWpring MiWare: Northern Mixture: 50% Turf Type Tall Fescue 75% Turf Type Tall Fescue 40% Unhulled Serecia Lespedeza 11 % Annual Ryegrass 10% Durana White Clover 9% Unhulled Serecia Lespedeza 5% Durana White Clover Seeding Rates: 50-200 Ibs / acre (22.7-90.80 kgs / hectare) P.O. BOX 290MADISON, 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 Price/lb 33.40 % Schlzachyviumscopadum, 'Itasca; MN Ecotype- Little Bluestem,'Itasca', MN Ecotype 10.41 20,00 % Elymus virginicur, Nad/son' Virginia Wildrye,'Madison' 5.40 7.00 % Carex vu/pinoidea, PA Ecotype Fox Sedge, PA Ecotype 24.00 5.60 % Chasmanth/um latrfolium, WV Ecotype River Oats, WV Ecotype 80.00 5.50 % Echinaces purpurea Purple Coneflower 36.00 3,00 % Chamaebista fasdcu/ata, PA Ecotype Partridge Pea, PA Ecotype 6.00 3.00 % Cioreopsislanceo/ata Lanceleaf Coreopsts 24.00 3.00 % Panicum dandesbhum, 7loga Deertongue, Tioga 16.84 3.00 % Panicum agidu/um, PA Ecotype Redtop Panicgrass, PA Ecotype 48.00 3.00 % Rudbeckiahirta Blackeyed Susan 20.00 3.00 % Verbena hastata, PA Ecotype Blue Vervain, PA Ecotype 32.00 2.00 % Halfopsis heliantho/des, PA Ecotype Oxeye Sunflower, PA Ecotype 28.00 1,80 % Asdeplasirrcarnata, PA Ecotype Swamp Milkweed, PA Ecotype 160.00 LOD % Carerscopana, PA Ecotype Blunt Broom Sedge, PA Ecotype 72.00 1.00 % Senn hebecarpa, VA & WVErotype Wild Senna, VA &WV Ecotype 24.00 0.60 % Helenlum autumna/e, PA Ecotype Common Sneezeweed, PA Ecotype 180.00 0.50 % Asternovae-angtiag PA Ecotype New England Aster, PA Ecotype 360.00 0.50 % Asterpremndra%dm PA Ecotype Zigzag Aster, PA Ecotype 360.00 0.50 % Baphsia australls, soudian WVEcotype Blue False Indigo, Southern WV Ecotype 80.00 0.50 % Pymanthemum terx"ium Narrowleaf Mountainmint 140.00 0.50 % Ozia aurea Golden Alexanders 240.00 0.40 % Monardb fistulosa, Fortbrdiantown Gap -PA Emrype Wild Bergamot, fort Indiantown Gap -PA Ecotype 80.00 0.30 % Ecpatwium perfoliatwn, PA Ecotype Boneset, PA Ecotype 160.00 0.30 % Juncus tennis, PA Ecotype Path Rush, PA Ecotype 66.00 0.20 % Juncus eKusus Soft Rush 40.00 0.20 % Solidago nemdralfs, PA Ecotype Gray Goldenrod, PA Ecotype 360.00 0.20 % Solidago myrtss PA Emtype 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 III-284-111-297 for completespecifications) 1. ALt!!!!t ffemss�p-e awA tint Trees to be saved: - -- 0 limits of clearing (outside dtipline of trees to be saved); %a Location and type of protective fencing; ® Grade changes requiring tree wells or walls; ® Proposed trenching or tunneling beyond the limits of clearing. 2. Markings: 0 All trees to besaved shall be maw with print or ribbon at a height clearly visible to equipment operators. ® No gra trig dell ¢eg u until itht be0 marking bas been inspected and approved by a CountyInspecter. 3. Pre-Cooatroedon Conference: ® preservation and protection measures shall be reviewed with the contractor on site. 4. Equipment Operation and Stora e• ® Heavy equipment, and traffic and storage of construction materials including soil stiell W bapet rt&9 toed Willits, the driplines of trees. to be saved. 5. Soil Erosion and' Stor'mwater Detention Devices - Such devices shall not adversely affect trees to be saved. 6. Fires: ® Fires are not permitted within too feet of the driphne of trees to be saved. 7. Toxic Materials: 63 Toxic materials shall not be stored within 100 feet of the dripline of nees to be saved. 8. Protective Fencing: 63 Trees to be retained within 40 feet of a proposed building or grading activity shall be protected by fencing. Id Fencing shall be in place and shall be inspected and approved by a County inspector prior to grading or construction 9. Tree Wells: ® When the ground level must be raised withinitlte dripline of a tree to be saved,. arms ea well shall be provided and a construction detail submitted for approval. 10. Tree Walls: ® When the ground level must be lowered within the dripline a tree to be saved,:a tree wall shall be Provided; and a construction detail submitted for approval. 11. Trenching and Tunneling: When trenching is required within 4helimtts of clearing, it shall be done afar away from the trunks of trees as possible. Tunneling under a large tree shall be considered as an alternative when it is anticipated that necessary trenching will destroy feeder roots. 12. Cleanup: ® Protective fencing shall be the last item, removed during the final cleanup. ® DamaTxeae- . Damaged 1% a *all be treated immediately by priming, fertilization or other methods recommended', by airee speci;dist Non: IT IS TBE DEVE E 'S RESPONSIBILITY TO CONFER WITH rHECONTRA -ToR ON TREE Co NS ERVA'ITON REQUIREMENTS. C NTRACT PIJR_CHASER SIGNATURE (DATE) - 5/1/06 Page 1 of 1 INSTALL SHRUBS SO THAT THE TOP OF THE ROOTBALL IS AT THE SAME GRADE AS ORIGINALLY GROWN OR 1-2" ABOVE IN POOR DRAINING SOILS. DO NOT COVER THE TOP OF THE ROOTBALL WITH SOIL REMOVE ALL STRING, WIRE, AND BURLAP FROM TOP Y3 OF BALL BACKFILL PLANTING PIT WITH NATIVE SOIL. INCORPORATE SLOW -RELEASE GRANULAR FERTILIZER SCARIFY BOTTOM AND SIDES OF PIT 7III IIIIIIIIIIIIIII - B&B CONTAINER 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 PRUNE 1:1 SLOPE Ol� PLAN - SCARIFY SIDES BEFORE PLACE RO( 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 1luu1 PROVIDE MULCH UP AND OVER SAUCER 6" SAUCER REMOVE CONTAINER. SCARIFY PERIMETER ROOTS :W 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 151SF 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 COR 8 TILIA CORDATA LITTLELEAF LINDEN 2.5" CAL. B&B 288SF 2304SF EVERGREEN TREES QTY BOTANICAL NAME COMMON NAME I MIN. INSTALLED SIZE ROOT CANOPY I CANOPY TOTAL JUN EAS 145 1 JUNIPERUS VIRGINIANA EASTERN RED CEDAR 7'-8' HT. JB&B 120SF 1900SF FLOWERING TREES QTY I BOTANICAL NAME COMMON NAME IN. INSTALLED SIZE ROOT CANOPY CANOPY TOTAL COR FLO 13 1 CORNUS FLORIDA EASTERN DOGWOOD 1.5" CAL., 6' HT. MIN. JB&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 158 1ITEA VIRGINICA'SPRICH' TM LITTLE HENRY VIRGINIA SWEETSPIRE 24" HT./SPRD. I 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. GENERAL NOTES PRE -CONSTRUCTION • 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. • 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. • PROVIDE PLANT MATERIALS OF QUANTITY, SIZE, GENUS, SPECIES, AND VARIETY INDICATED ON PLANS. ALL PLANT MATERIALS AND INSTALLATION SHALL COMPLY VVITH 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 • PROVIDE AND INSTALL ALL PLANTS AS IN ACCORDANCE WITH DETAILS AND CONTRACT SPECIFICATIONS. • 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 • 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 • 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. • INSTALL LANDSCAPE PLANTINGS AT ENTRANCES/EXITS AND PARKING BACKFILL PLANTING PIT WITH NATIVE AREAS ACCORDING TO PLANS SO THAT MATERIALS VVILL NOT SOIL. INCORPORATE SLOW -RELEASE INTERFERE WITH SIGHT DISTANCES. GRANULAR FERTILIZER • 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 CUT AWAY ALL BALLING ROPES. REMOVE BURLAP OR INSPECTIONS/GUARANTEE WIRE BASKET FROM TOP Y3 OF BALL. IF CONTAINER GROWN, REMOVE • 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 • 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. • 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. • REMOVE ALL GUY WIRES AND STAKES 12 MONTHS AFTER INSTALLATION. 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. I HEIGHT VARIES WITH PLANTS 12" MIN. PLAN VIEW: 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 CONCEPT PLANT SCHEDULE MEADOW PLANTINGS - SEE DETAIL #6 12,901 SF COURTYARD PLANTINGS 1,755 SF - Sedum spectable'Autumn Joy' - Carex sp. - Panicum virgatum 'Shenandoah' - Osmunda cinnamonmea - Heuchera villosa - Hypericum calycinum - Rea virgginica 'Sprich' - Ilex glabra BUS LOOP BIO-FILTER PLANTINGS 2,903 SF - Rea virginica 'Sprich' - Cornus serica'Kelseyi' - Fotherggills ggardenii 'Mount Airy' - Ilex glabra'Compacta' - Ilex verticillatta 'Red Sprite' - Juncus effusus PLAYGROUND PLANTINGS 1,273 SF - Panicum virgatum 'Shenandoah' - Hypericum calycinum - Carex sp. Calamagrostis x acutiflora ' Karl Foerster - Sedum spectabile'Autumn Joy' +++++++++ BIO-FILTER PLANTINGS 2,040 SF +++++++++ - Carex sp. - Juncus effusus - Lobelia cardinalis - Rea virginica 'Sprich' - Panicum virgatum 'Heavy Metal' RAIN GARDEN CONCEPT PLANTINGS 1,257 SF - Carex sp. - Juncus effusus - Lobelia cardinalis - Rea virginica 'Sprich' - Panicum virgatum 'Heavy Metal' - Acorus calamus - Rudbeckia hirta - Asclepias syriaca 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' 745/50 = 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 /A 0 = 83,005 SF 83,005 SF 176,343 SF(EXISTING) _ CANOPY 218,532 SF VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com !00000 lit f 49 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 I[I Wo. 14 11 /25/20 F. HANCOCK F. HANCOCK M. RACHNER DRAWING NOT FOR CONSTRUCTION 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 LANDSCAPE NOTES AND DETAILS CONSERVATION CHECKLIST NOT TO SCALE DECIDUOUS TREE - STAKING SPECIFIED NOT TO SCALE GROUNDCOVER/ PERENNIAL PLANTING NOT TO SCALE L2.0 / —I*—Ig I—1�I_ I/�I,--� � /I�:• I �`I 1— IIIIIII�- I0�1 cI_—_I���I—II 4� I�I II ami II I IIIII�IIII I-IIlIlIvI�I�IIIIIIAA\v IIIvV�I IIIl lIII\ IIIIII II II II�A IIII�TI'I II III1I� o�a��1 i � 6go ' EXISTING SOCCER FIELD � I L—1 l U AI � r' SEE EE/— 1S HE o—vE\1_��TI _ °\ A \v v v vvL� � VVA3\_IIv II1�vI .11 / FOR PLAYGROUND LAYOUT AND MATERIALS PLAN 01 OO RELOCATED 8/' IAI4�\r1/.J -X 18 O SHED / Op JR -61 / 68—689 O 61 O 91 v1 1 o IO v�vVl\II v —v 0 V68 ,891 690 06� 69p /U \6 rJ —691— ' O O � \\vAlv6VV vAVv \ I_vIv ` vvV \ Uvv) �vS CID 696� 7f EXISTING SCHOOL BUILDING BUILDING ADDITION BUILDING SEE SHEET L3.2 \�1 v Q v m 998 ADDITION FOR COURTYARD LAY MATERIALS PLAN 3�TO MI 0DIG TERRACE 0 \m SEAT WALw w DETAIL 3, L4.0 EX081 68A\2Vrn�k —699 77 — 00 700— LLJ I /X A CL U -02 �I0— 702-- —— 703— 0 — — — — � - �\ \A1 \ Q « \,\ vvv I v/ \\I I__v - 7—� ---- —� 703 c�69 UFOL— — — —UFO �� - o UFO / —\' UF\O O _—UFO G R T1 �H� UFO — 8 CIVN 7 mom OHP� also 700 OVA? — —— 0dH ONP WINE i OI _ UFO` SAN AUFO / —UFo -_-= _-- - =�, i o / oHP / SCA E V=30' S N— O�IFti� �-- \ -905 — T /wo _�ih ' ��0HP 1 0 30' 60' OVAF� V M 1) () VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. • lbemarle 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.o Hf)?1. 14 �"'` 11 /25/20 Checked By F. HANCOCK Designed By F. HANCOCK Drawn By M. RACHNER DRAWING NOT FOR CONSTRUCTION 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 OVERALL LAYOUT AND MATERIALS PLAN OnO � ►. \ SPINETIC W/ SPEED LIMITER �: C PLAY EQUIPMENT �; ►1��8 I ��� METAL EDGING RELOCATE BENCH ��/ STONE DUST PAVING r NATURE PLAY STUMPS \ \\ '�` +, \ F „ "� / - - - a \ \ �• /� , > -ALTERNATE SMALL AND LARGE / - - - --- - - a----- - - �_ - v FLUSH CONC. CURB RELOCATED BENCH �� _ -�� �R GSH NATURE ROCK -LARGE WOODCARPET . NATURE PLAY STUMP - SMALL PLAYGROUND \' y SURFACING \ EDGING MODIFIED VDOT CG 3 CUR .. ASPHALT TRACK j 41141 . . u4� s .� A 8 /� �> I DEMONSTRATION \Z ° ° \ \/ / / / / \ \ GARDEN \ \ — -— ` � : RAIN Al _ � r 689 \ \ \ \ 689— -. � , \ \ � \ � � � � � : \ / - \0\ 6g8 / / i v 0I V ` �► Y, / �119\ / 4 i i -692 - v a A s poi v 102/1 1 V M 1) () VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. lbemarle 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. H Ill W6. 14 11 /25/20 Checked By F. HANCOCK Designed By F. HANCOCK Drawn By M. RACHNER DRAWING NOT FOR CONSTRUCTION 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 PLAYGROUND LAYOUT AND MATERIALS PLAN On 1 EXISTING BUILDING CENTERLINE OF MOVEMENT ADDITION I: zo 'fL10' 20' 7 �I10'7I9.2'�r LANDSCAPE BED i W I �— LANDSCAPE \ BED `c _X_ LANDSCAPE BED ---\ —---�--- ------13.9'--- 8 1�0 0c, cc i \ i i \ 6 9'9 \ \ 699. s LANDSCAPE BED LANDSCAPE 69j ® 6 80 \ \ \ \ 1 SRN \ —SANS- v i 1 \ 1 1 \ 1 1 1 1 1 I 1 1 1 1 i PROPOSED 1 1 I 1 1 1 1 1 1 1 CLASSROOM `1 ADDITION , 1 1 1 1 1 1 1 1 1 1 1 � rl 1 1 1 1 I 1 r 11 1 II 1 I 1 1 1 r� I 1 1 1 1 -- 1 1 LANDSCAPE 1 1 BED I \ I 1 I I I 1 1 I 1 I I 1 1 \ 1 1 1 1 1 \ I \ 1 1 \ 1 I \ \ 1 1 \ \ \ \ \ �. A 'V � cP0 A A — O \ �L E8 OHN IIII SCALE 1/4"=1'0" VMDO VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com 0 0 0 0 00 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. • lbemarle 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. H III o. 14 11 /25/20 Checked By F. HANCOCK Designed By F. HANCOCK Drawn By M. RACHNER DRAWING NOT FOR CONSTRUCTION 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 COURTYARD LAYOUT AND MATERIALS PLAN L3n2 9" MIN. DEPTH PLAYGROUND MULCH VMDO MOD. VDOT CG-3 CURB — LIGHT DUTY ASPHALT PAVING - REF. CIVIL DWGS. ,III—III1 I I1 I I IIIIII 1I "'-III �,III��IIII COMPACTED SUBGRADE — 95% S.P.D. PLAYGROUND EDGING - SECTION 1 1 /2" = V-0" 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 CONCRETE PAVING 4" COMPACTED VDOT #21A STONE BASE 2'-2„W/ CAULKED EXP. JT W/ S.S. DOWEL @ 24" O/C CONCRETE STEPS 4 d a p 4 SLOPE TOP OF CONIC. TO DRAIN d ° e ° ° ° 5/4 x 3 IPE W/SLOTS ° 4 1 x 4 STRIP @ 18" O/C ATTACH TO 1 x 4 W/DECK p p CLIPS NO SLOTS ON a a ° _ _ q p" III EDGE PIECES - 4 ° a d —III III TYP. _—III—I 1-1 —i °d d ° 4 - -III REF. STRUCT. DWGS. FOR WALL AND FOOTING ° _—I—III—III— DESIGN ° d I —III —III —_III ° � ° ° III —III —III —III ° ° ° III —III III —III M111 III=1 I ° ,I I I,, I I I,; 111 FT 11' COURTYARD SEATING - SECTION 1" = 1'7, 1/2" CAULKED EXP. JT W/ S.S. DOWEL @ 24" O/C CONCRETE PAVING — 4" COMPACTED VDOT #21A STONE BASE SLOPE TOP OF CONC. TO DRAIN x 3 IPE W/SLOTS 15/4 1 x 4 STRIP @ 18" O/C ATTACH TO 1 x 4 W/DECK CLIPS NO SLOTS ON EDGE PIECES - U) 4 w - TYP. Q > °4 p „ ° .4. 4 ° d p � d a' 4 4 I d' C ° ° e p e 4 .. Q ° REF. STRUCT. DWGS. FOR WALL AND FOOTING DESIGN DINING TERRACE SEAT WALL - SECTION 1" = 1'-0" VMDO Architects 200 E Market Street Charlottesville, VA 22902 434.296.5684 vmdo.com 0 0 0 0 00 TIMMONS GROUP YOUR VISION ACHIEVED THROUGH OURS. • lbemarle 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.H Ill Wo. 14 11/25/20 1 Checked By F. HANCOCK Designed By F. HANCOCK Drawn By M. RACHNER DRAWING NOT FOR CONSTRUCTION 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 DETAILS L4n0 AI. �-O BETWEEN EXIST QUICK START TENNIS & MEADOW MAINTAIN ACCESS TO EXIST QUICKSTART TENNIS COURTS PROPOSED PHASING PLAN: PHASE 1: SUMMER 1 SITEWORK (APR 21 - AUG 21; 5 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 (MAINTAIN CLEAR VEHICULAR PASSAGE AT ALL TIMES DURING THIS PHASE.) 1.1C DEMOLISH PORTION OF EXIST KITCHEN WALL TO CREATE TEMP EMERGENCY EGRESS DOOR FROM EXISTING KITCHEN (TO REMAIN UNTIL PHASE 4) 1.2 - DRILL WELLFIELD; RESTORE SOCCER FIELD INCL. IRRIGATION SYSTEM 1.3 - BUILD NEW BUS LOOP AND ROAD TO CROZET AVE. (PROVIDE INTERMEDIATE COURSE OF ASPHALT) 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 (MID-JUNE) 1.4 - BUILD DOAS CLOSET IN EXISTING LEVEL 01 BREEZEWAY (JUN-AUG) 1.5 - BUILD NEW PLAYGROUND & ADJACENT SITE WORK (JUN-AUG) (PROJECT START TH >E 1 RU SUMMER 2021) PHASE 2: NEW CONSTRUCTION (APR 21 - AUG 22; 17 MONTHS) 2.1 - GENERAL PHASE SETUP TASKS 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 2.3B 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 -AUG 21; 3 MONTHS) 3.OA - INSTALL DUST PARTITIONS AND SAFETY BARRICADES 3.013 - 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 - AUG 22; 3 MONTHS) DE -MOBILIZE CONTRACTOR TRAILERS 4.1 - LEVEL 01 & 02 EXIST CLASSROOM MECH AND ARCH WORK 4.2 - RENOVATE EXIST KITCHEN AS DINING EXPANSION 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: PHASE APR'21-AUG'21 PHASE APR'21-AUG'22 PHASE 3 JUN'21-AUG'21 PHASE 4 JUN'22-AUG'22 E 2 2021 2022 APR MAY JUN JUL AUG I SEP OCT NOV DEC JAN FEB MAR I APR MAY JUN JUL AUG MAINTAIN +PROTECT THIS EXIST EGRESS PATH UNTIL 2.1 B COMPLETE V M VMDO Architects vmdo.com 434.296.5684 200 E Market Street Charlottesville, VA 22902 i) o 120018th Street NW Ste 700 Washington, DC 20036 Cbemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Ave, Crozet, VA 22932 Client Project Number VMDO Proiect Number Checked By ALO TH DGE Drawn B y `\ EXIST WHIP PLANTINGS TO B 1 PROTECTED AT ` ALLTIMES LEGEND A CONTRACTOR STAGING, STORAGE, & PARKING B CONSTRUCTION ENTRANCE N� PROPOSED CONSTRUCTION FENCE AREA AVAILABLE FOR CONTRACTOR (FOR EACH PHASE) AREA TO REMAIN CLEAR & UNOBSTRUCTED DURING SCHOOL DAY/YEAR r-, L_� BUILDING ADDITION AREAS r - , 1 1 BUILDING RENOVATION AREAS L_J 1 TEMPORARY EGRESS ROUTES (TO BE PROTECTED FOR DURATION OF PHASE/PROJECT) -► CAR DROP-OFF / PICK-UP ROUTE BUS DROP-OFF / PICK-UP ROUTE TBD 1284 Checker DRAWING NOT FOR CONSTRUCTION Author ISSUES AND REVISIONS NO. SUBMITTAL 1 SCHEMATIC DESIGN PRICING SET 29.MAY.2020 2 DESIGN DEVELOPMENT 04 SEP. 2020 PHASING DIAGRAMS - PHASES 1 & 2 A004 I n PHASE 3 PROPOSED PHASING PLAN: PHASE 1: SUMMER 1 SITEWORK (APR21 - AUG 21:5 MONTHS) PHASE 2: NEW CONSTRUCTION (APR 21 - AUG 22; 17 MONTHS) PHASE 3: SUMMER 1 RENOVATION (JUN 21 -AUG 21:3 MONTHS) INSTALL ALL SAFETY BARRICADES (SITEWORK) 3.OA - INSTALL DUST PARTITIONS AND SAFETY BARRICADES 2.1 - GENERAL PHASE SETUP TASKS 3.OB - EXIST CAFETERIA TO SERVE AS TEMP ADMIN DURING SUMMER RENO 1.1 - GENERAL PHASE SETUP TASKS 2.1 A INSTALL DUST PARTITIONS AND SAFETY BARRICADES (AT ALL LEVELS ADJ TO NEW WORK) 1.1A CONTRACTOR TRAILER AREA TO UTILIZE EXISTING GRAVEL LOT; EXPAND AS 2.1 B ERECT TEMPORARY EGRESS STAIR 01 & CONSTRUCTION BARRIERS (WALLS & ROOF) FROM 3.1 - ADMIN SUITE RENOVATIONS NECESSARY UP TO FIELD 1995 WING UPPER LEVEL. EXISTING EXTERIOR EGRESS STAIR AND PATH TO BE 1.1 B CONTRACTOR TO INSTALL GRAVEL ROAD FOR EMERGENCY ACCESS TO THE PROTECTED FROM NEW CONSTRUCTION & REMAIN OPERATIONAL UNTIL TEMP EGRESS 3.2 - LIBRARY EXPANSION (RENOVATION) EAST SIDE OF THE PROPERTY (MAINTAIN CLEAR VEHICULAR PASSAGE AT ALL STAIR 01 IS CONSTRUCTED. ERECT NEW TEMP EGRESS DOOR FROM EXIST LOWER LEVEL TIMES DURING THIS PHASE.) 2.1C MAINTAIN SAFE EGRESS PATH FROM EXISTING EGRESS DOORS AT SOUTH WALL OF GYM PHASE 4: SUMMER 2 RENOVATION (JUN 22 - AUG 22; 3 MONTHS) 1.1C DEMOLISH PORTION OF EXIST KITCHEN WALL TO CREATE TEMP EMERGENCY AT ALL TIMES. COORDINATE THIS PATH WITH EXIST SITE STAIRS AND NEW TEMPORARY DE -MOBILIZE CONTRACTOR TRAILERS EGRESS DOOR FROM EXISTING KITCHEN (TO REMAIN UNTIL PHASE 4) EGRESS STAIR 01. 2.1 D ERECT TEMPORARY EGRESS STAIR 02 (WITH ROOF) AT EXIST AFTER -SCHOOL OFFICE. 4.1 - LEVEL 01 & 02 EXIST CLASSROOM MECH AND ARCH WORK 1.2 - DRILL WELLFIELD; RESTORE SOCCER FIELD INCL. IRRIGATION SYSTEM 2.1 E ERECT CONSTRUCTION BARRIERS ALONG ENTIRE LENGTH OF EGRESS PATH TO SIDEWALK. 4.2 - RENOVATE EXIST KITCHEN AS DINING EXPANSION 4.3 - FINAL ASPHALT TOP COAT (BUS LOOP AND ENTRY ROAD) 1.3 - BUILD NEW BUS LOOP AND ROAD TO CROZET AVE. 2.2 - NEW CLASSROOM WING AND MOVEMENT ADDITION 4.4 - PARKING LOT IMPROVEMENTS (PROVIDE INTERMEDIATE COURSE OF ASPHALT) 2.2A DEMOLISH EXISTING 1995 ADDITION EXTERIOR EGRESS STAIR 4.5 - BUILD PROPOSED OUTDOOR BASKETBALL COURT & COMPLETE 1.3A INSTALL STORMWATER STRUCTURES AND PIPE (ONCE TEMP EGRESS STAIR 01 IN PLACE & SAFE) SIDEWALK CONNECTIONS TO TENNIS AND SCHOOL NETWORK 1.3B INSTALL CURBS 4.6 - REMOVE CONSTRUCTION BARRIERS & COMPLETE NEW 1.3C HATCHED AREA MUST REMAIN CLEAR AND UNDISTURBED UNTIL END OF SCHOOL 2.3 - NEW KITCHEN ADDITION COURTYARD AT TEMPORARY EGRESS LOCATIONS YEAR (MIDJUNE) 2.3A PROVIDE TEMPORARY ABOVE GROUND OIL TANK PRIOR TO THE REMOVAL OF THE 4.7 - REMOVE TEMPORARY EGRESS COMPONENTS & RESTORE EXISTING UNDERGROUND OIL TANK EXISTING CONSTRUCTION 1.4 - BUILD DOAS CLOSET IN EXISTING LEVEL 01 BREEZEWAY (JUN-AUG) 2.3B HATCHED AREA MUST REMAIN CLEAR FOR ALL SCHOOL TRAFFIC DURING SCHOOL DAY) PROPOSED PHASING SCHEDULE: PHASE APR'21-AUG'21 PHASE 1 APR'21-AUG'22 PHASE 3 JUN'21-AUG'21 PHASE 4 JUN '22 - AUG'22 2021 1 2022 APR I MAY I JUN JUL AUG I SEP OCT NOV DEC I JAN FEB MAR I APR I MAY I JUN JUL AUG LEGEND A CONTRACTOR STAGING, STORAGE, & PARKING B 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 r - 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 M D O VMDO Architects vmdo.com 434.296.5684 200 E Market Street 1 120018th Street NW Ste 700 Charlottesville, VA 22902 1 Washington, DC 20036 Cbemarle County Public Schools ALBEMARLE COUNTY PUBLIC SCHOOLS CROZET ELEMENTARY SCHOOL ADDITION, RENOVATION AND SITE IMPROVEMENTS 1407 Crozet Ave, Crozet, VA 22932 Client Project Number TBD VMDO Proiect Number 1284 Checked By KAT Drawn By TJ DRAWING NOT FOR CONSTRUCTION ISSUES AND REVISIONS NO. SUBMITTAL 1 SCHEMATIC DESIGN PRICING SET 29.MAY.2020 2 DESIGN DEVELOPMENT 04 SEP. 2020 PHASING DIAGRAMS - PHASES 3 & 4 A005 1.5 - BUILD NEW PLAYGROUND & ADJACENT SITE WORK (JUN-AUG) 2.4 - NEW WORK IN EXISTING BOILER ROOM (LEVEL 1)