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HomeMy WebLinkAboutSDP201600069 Letter of Revision 2021-05-071 1 2 1 3 4 5 1 6 1 7 1 8 9 1 10 1 11 1 12 J H G F E D C B A WOODBROOK ELEMENTARY SCHOOL LETTER OF REVISION TO MAJOR SITE PLAN AMENDMENT SDP-2016-00069 COUNTY OF ALBEMARLE, VIRGINIA Hydrant Flaw Date of Report &'.1Z/2U16 Test Report rlge+s'.a�wr.�+�.sr s.. asn ufslssna•sr Location Waodbrook Elementary School Date a nd TI me of Test 8/2/2016 1:W_01] PM M inotf$ of Flow 2 Plpe Sire (Inches) R Pressure Hydrant 12240 static Presstrre(psi) 63 Residual Pressure {pall 29 Flow Hydrant 41 12249 Pitot Pressure #2 {psi) 40 Test Row 1 E34 Flow Horant 42 12249 Mat Pressure #2 {Psi] 30 Test Flow 2 7fi5 Flow Hydrant #3 12309 Pitat Pressure #3 (psi) 27 Test Flow 3 726 Tatal Estimated Flow (Spin) 2375 AWWAQi9Calwlatlon(gpm) 2697 Ivulm ur reru in WO indicates lns frwlmt Preswre drop rorulmatlgmi Comments Opened all flaw hydrann all the way. Fw meJl dnFo wlatlne pfti11w.itea•Inusee seeeq.13,Walsklandtwes a W* 19901oumal MWgRwme aM Ommt,o AWwA INtestscanduned uflae 25 dfahaf$e owlet mnieas WWIIwtyr MwIl' di Estimated Consumption jgal) 4750 For use for water audl Signature of Tester: �— — -M`�r r� _ MAINO 0 v '_ � its.- � ' � ,�� �►����!' ��7. bit 7'I Ise lUfiii%y Ty" I►iE 4 ascuiusR � wea .�u..ma airoc, seWµp�.w-�•t e•ealen lln mq w snmef ry ilei�rnl �+ea, am i.r.,ec.emon mry. Ira mPm •mw.eruviw an mrcrue mnn p•uvery Pamrg nusmv 4l� PeeLY r. p.l�[, ne ama eror�mev. n+p.. ea..,.ane. Service Au"rity arse. nx,r..r rrwrt W h �mpvammbwrx sywsm uenoa ere rw�es.n utn•ue n ar mmvma.ca me me d na m.m. 5 rgsrncs.ser�vb Inc aswy ermm 0 130 260 390 wo cz:��F> .my eremm� m� ny� Panunona�ys W(y'My(I GYfY'arq'Lymah reet S-0`5-9 RIO DISTRICT 5/3/2021 mat\, o` G`' C/oucestert RN 00VOr Rd WOODBROOK CROSSINGS Lowe'sHome CONDOS d Improvement ,AO, �o0w0 D; Chick fit A PROJECT LOCATION a 0 0 s�o a ey�ood Dt 't'fYers Dr BrP� '-9� �00c, FIELDBROOK . RKMAR 0 of Jump Charlottesville Rd C, BERKMAR CENTER �toov- • Arden Place Apartments ■ Rio Hill Apartments RAINTREE Ralnuee°` VICINITY MAP SCALE 1:1000 OWNER: ALBEMARLE COUNTY SCHOOL BOARD 401 MCINTIRE RD CHARLOTTESVILLE, VA 22902 CONTACT: MR. JOSEPH P. LETTERI TELEPHONE: (434) 975-9340 FAX: (434) 975-9341 ENGINEER OF RECORD: TIMMONS GROUP 608 PRESTON AVENUE, SUITE 200 CHARLOTTESVILLE, VA 22903 CONTACT: CRAIG KOTARSKI, P.E. TELEPHONE: 434-327-1688 LETTER OF REVISION NARRATIVE: THIS PLAN PROPOSES THE FOLLOWING REVISIONS TO THE APPROVED MAJOR SITE PLAN AMENDMENT BY TIMMONS GROUP WITH REVISION DATE OF 4/27/17. REVISIONS ASSOCIATED WITH THIS LETTER OF REVISION ARE CLOUDED. 1. REVISION TO THE 72" CMP STORAGE FACILITY, SWM B, FROM 170 LF TO 155 LF TO MATCH AS -BUILT CONDITION. REVISIONS TO THE SIZE AND ELEVATION OF THE ORIFICES ON THE SWM B STEEL WEIR PLATE. UPDATED WATER QUANTITY CALCULATIONS SUMMARY. THE UPDATED CALCULATION BOOKLET IS PROVIDED UNDER SEPARATE COVER. NOTE, THE POST DEVELOPED DRAINAGE AREA AND LAND COVER CONDITIONS ARE UNCHANGED FROM THE APPROVED PLAN. l 2. UPDATED STORM SEWER PLAN AND PROFILES FOR STRUCTURES 208-200 r AND 211-204 BASED ON AS -BUILT SURVEY DATA. L DDITION OF STRUCTURES 206B AND 206D. HORIZONTAL AND VERTICAL ATIONS ARE BASED ON AS BUILT SURVEY DATA. PLAN AND PROFILES LUDED. Sheet List Table Sheet Number Sheet Title C0.0 COVER C1.4 BAYFILTER NOTES & DETAILS C4.0 LAYOUT PLAN & UTILITY PLAN C5.0 GRADING & DRAINAGE PLAN C6.0 AUXILIARY SITE IMPROVEMENTS & BASE BID ITEM PLAN C8.1 STORM SEWER PROFILES C10.0 STORMWATER MANAGEMENT PLAN & DETAILS TOTAL: 22 SHEETS APPROVALS DATE DEPARTMENT OF COMMUNITY DEVELOPMENT PLANNER/ZONING ENGINEER INSPECTIONS ARB DEPARTMENT OF FIRE RESCUE ALBEMARLE COUNTY SERVICE AUTHOR= VIRGINIA DEPARMENT OF TRANSPORTATION HEALTH DEPARTMENT M E O O m u N vi O O v E 3 me 3 [� 0 Y M U W U • • o� O N • N V • N • J x O In Q .LL J � C ry N 1p > to Q C � O ry � � V M a V p� J F- w Q z oz 0 0 0 N M M o ej CDQ LU � W U � Z 2O Q Z Y U 0 Y U) Q Lu 3 0 a- 0 C) J W G I— RRMM ARCHITECTS, PC 1317 Executive Blvd, Suite 200 F Chesapeake, Virginia 23320 (/ b /)bZZ-ZtfZtf *,pLTH otoo ?off CLINT W. 7 01 S FFLET ;1. %Lic. N 54iss �O 4 5/3/2021 z O U) W 0 W w J 1 J 0 U Q z W 2 z W J E5 Of W > Y � °° In Q J � L I11 O o cc cc / O Q U w Z O Q o a SHEET C0.0 E ■!7 C L� A 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 I 2 I 3 I 4 5 6 7 8 9 10 11 12 J G F E D C B A TOP OF 84" STORAGE PIPE TOP OF WEIR ELEV. 483.24 = PLATE 481.59 10 YEAR WSE 483.03 2 YEAR_WSE 482.114 STEEL PLATE 15" ORIFICE INV 479.50 ELEV. 476.24 4" ORIFICE INV 476.24 NOTE: SLOPE 84" PIPE TOWARDS THE WEIR PLATE AT 0.50% WEIR PLATE SECTION SWM FACILITY A -WEIR PLATE DETAILS 2r PLAN VIEW 4PBAYSAVER TECHNOLOGIES 14181DAi/M rov.+ceu o.rw.vz m pax, luc, 1030 Deer Holow Ddvs 1-80"AYSAVER 41101RUEMAR elVD Mount Airy, MD 21771 1-BON229-7283 HILLIARD, ON 4W26 i-0OD733Jd73 BAYFILTER DETAILS No Scale 24' FdC� INLET- rtmET- 36' F8C sno, �� I■[■I[�ili�■I[�ili:ul[�illl FILTER INLET I WOUND MEW FILTER CARTRIDGE WITH FEET OF FILTRATION AREA, ME FILTER A CONCRETE STRUCTURE THAT EVENLI VEEN CARTRIDGES THE SYSTEM IS BYPASS THAT ROUTES HIGH INTENSITY M. THE FILTER CARTRIDGES REMOVE iY FILTRATION I AND ADSORPTION. SECTION A -A WOODBROOK ES BAYFILTER 8-12-8 SYSTEM A L TOP OF 72" STORAGE PIPE ELEV. = 485.94 TOP OF WEIR PLATE 485.77 0 10YEARWSE 485.95 STEEL PLATE 2 YEAR WSE -------- -- 484.80 24"X5.2" ORIFICE INV 484.45 ELEV. 480.00 3.8" ORIFICE WITH TRASH RACK INV 479.94 NOTE: SLOPE 72" PIPE TOWARDS THE WEIR PLATE AT 0.70% WEIR PLATE SECTION SWM FACILITY B - WEIR PLATE DETAILS No Scale INLET 3E Crgga pliglillolglyglillp �l OUTLET INLET ER STO AIPIRALWUND SEDMENTS. HEAVY METALS. AND PH< �BAYSAV RELIES ONALTRN srsTEMaELIEsoNASFIRALwouND T E C H N O L O G I E S APPROXIMATE Ly 90 SQUARE FEET OF NnwcrnueWv+snrtux,l�X..• CARTRIDGES ME HOUSED N A CONC DISTRIBUTES THE FLOW SETNEEN CA 1030 Deer Hollow Drive 1-80p$AYSAVER 4640 TRUEMAN KVD OFFMNE WITH M EXTERNAL BYPASS Mount Airy, MD 21771 1-800-229-7283 HILL64RD, OM 430Z6 STORMSAROUNDTHESYSTEMTHEF PaLUrANTS FROM RUNOFF By FILM 1- 73}7473 dNrERCEPTIDWATTACHMEMIANOAI A •4' Ad. E/r e STEPS O O �. OVERFLOW STANDPIPE STANDPIPE OUTLET WOODBROOKES BAYFILTER 72-3 SYSTEM B INSPECT EVERY 6 MONTHS FOR THE FIRST YEAR OF OPERATION. AFTER THE FIRST YEAR INSPECT ONCE A YEAR PREFERABLY IN THE SPRING. INSPECTION SHOULD BE DONE BY OPENING TOP OF VAULT AND VISUALLY CHECKING SEDIMENT LEVEL IN BOTTOM OF VAULT. 3 IT SHOULD NOT BE NECESSARY TO ENTER VAULT FOR INSPECTION. BAYFILTER VAULT IS CONSIDERED A CONFINED SPACE AND REQUIRES CONFINED SPACE PERMIT AND FOLLOWING OSHA STANDARDS TO CHECK AIR SAFETY. O O INSPECTION SHOULD MONITOR AND RECORD SEDIMENT LEVEL IN THE BOTTOM OF THE VAULT WHEN SEDIMENT IS OBSERVED TO BE COVERING THE TOP OF THE PVC PIPE MANIFOLD OR REACHING BOTTOM OF THE FILTERS: MAINTENANCE IS REQUIRED !; THIS ENTAILS REPLACEMENT OF FILTER AND CLEANING OF VAULT (APPROXIMATELY EVERY 2 TO 3 YEARS). !; FOLLOW BAYFILTER MAINTENANCE PROCEDURES BELOW OR USE OF ONE OF THE CONTRACTORS. IF REQUESTED ADS/ BAYFILTER WILL SEND A REPRESENTATIVE OUT FOR AN INSPECTION OR MAINTENANCE FOR TRAINING OR ADVICE. BAYFILTER MAINTENANCE No Scale lllbp Vl LIVII 4IH3 IYItl111LCr1411GC The BayFilter system requires periodic maintenance Maintenance Procedures to continue operating at the design efficiency. The 1. Remove the manhole covers and maintenance process comprises the removal and open all access hatches. replacement of each BayFilter cartridge and the cleaning of the vault or manhole with a vacuum buck. 2. Before entering the system make sure the air is safe per OSHA Standards or use a breathing The maintenance cycle of the BayFilter system will be apparatus. Use low 02, high CO, or other applicable driven mostly by the actual solids load on the fitter. The warning devices per regulatory requirements. system should be periodically monitored to be certain 3. Using a vacuum truck remove any liquid and it is operating correctly. Since stormwater solids loads sediments that can be removed prior to entry. can be variable, it is possible that the maintenance cycle could be more or less than the projected duration. BayFilter systems in volume -based applications are designed to treat the W0v in 24 hours initially. tttt i1iil�IllO Late in the operational cycle of the BayFifler, the I���i�VI'1n711 flow rate will diminish as a result of occlusion. When the drain down exceeds the regulated _ standard, maintenance should be performed. When a BayFilter system Is first Installed, 8 is recommended that it be inspected every six (6) months. When the filter system exhibits flows below design levels the system should be maintained. Filter cartridge replacement should also be considered when sediment levels are at or above the level of the manifold system. Please contact the BaySaver Technologies Engineering Department for maintenance cycle estimations or assistance at 1.800.229.7283. 4. Using a small lift or the boom of the vacuum truck, remove the used cartridges by lifting them out. BAYSAVER TECHNOLOGIES' S. Any BayFilters that cannot be readily lifted 9. The used BayFiters must be sent back directly out of the vault should be removed from to BaySaver Technologies for exchange/ their location and carried to the lifting point using the recycling and credit on undamaged units. Trolleysystem installed In the Vault if applicable). Y ( 6. When all BayFilters are removed, remove the balance of the solids and water; then loosen the stainless clamps on the Femco couplings in the pipe manifold; remove the drain pipes as well. Carefully cap the manifold and the Femcos and rinse the floor removing the balance of the collected solids. 10. Contact BaySaver Technologies for Exchange Fitter pricing and availability at 1.800.229.7283. 7. Clean the manifold pipes, inspect, and reinstall. 8. Install the exchange BayFilters and close all covers. BAYFILTER INSPECTION AND MAINTENANCE PROCEDURES No Scale M E O O am N vN o > E OE v r w 3 P: Ii 3 0 ri L M U ip Uc, 0 • • O N • N • a O 0 n a LL v �a C ry a, > n T C = rn O ry v� M a v pO J MJ Z O H F U fn W 0 r m W Q Z Z 0 X— X— N Iq O C') M M In � LU W t) U Lu c5 Q Q Z Y U 0 Y U 0 LU 0 0- o U J W G RRMM ARCHITECTS, PC 1317 Executive Blvd, Suite 200 F Chesapeake, Virginia 23320 (/b/Jazz-zuzu � pLTH 0ikwo 90 `, `• • ?off CLINT W. S F LiFLET i isA c. N SIGs• �4 0 5/3/2021 Z O U) W IL O W H H W J 1 ) V '^ J J O < U LU U 06 U) z LU WQ WZ O wq JZ z WLU > Y � � O o (If c) LU J p O Lu LL O cc cc Q a m H U W U' Z O IY Q ry a o SHEET C 1.4 E ■!7 C A 1 2 3 4 I 5 I 6 I 7 I 8 I J H G F E D B A t•::7 G / / EDGE(4'W) X REFER TO C6.0 — INSET B EXTEND EXIST. \� _�40' SCa. ZZ CHAIN LINK FENCE � TIE TO EXISTING 1 R3' //,,,,9 RS 22 R14' - IR �� 4" SAN. SEWER REMOTE FDC as ' �STAIRS INV.=488.62 BEND 45° 8GR56 CG-12 18 R20 1 NO PAR ING a c. „ • . „• - • . • • 60° (TYP R100' ( 6 P.EG . 0 2s^OAK G-6 R34' ° \.�:'- FIRE LAN SIG + COVERED •� �• 4„W 1 . / LSAT 1 CANOPY I — —IL ELOCA ED .. ( I _ "' . • ., _•—i%_L_ 3•_ o •I 4" DIP + 3" SAN. SEWER 90° BEND 9 CLASS 53 1 FLAG P LE v R16' _ ^'� ° 36"OAK I •� ' INV. = 490.45 / -'. 6,'v CG 12 I. COVERED - s _ 5 sP _ v ° I 9 �- P� CANOPY N Cu-1 _ v COVEREDCANOPY 3" PVC • �:... C .� 4" PVC r R100' 5 _9II 45° BEND j ,2' . � � _ eel � � — RESTRIPE � . \ - v '. EXISTING 1 12' - \ 60 (TYP) v I• o (I I 8B -• I PARKING R15 II SPACES c v. - CROSSWALK s '' °��•j I .,. 1 © C.O.(TYP)I I f PI • CONNECT TO EXIST 1 _ 18 '� ,\ \ SAN. LATERAL 3 (W)DOOR g' R3' \ ° • �. CONTRACTOR TO D `' ° • TIE TO SIDEWALK h •�, \>� VERIFY INVERT ELEVATION AT NEAREST JOINT 1 RG 012 R5 v� \ IFFE=4!2.94' co D • 3' (W) DOOR � Z ` 1 R200' ' 2 R28' CROSSWALK �, R56' •I d G-12 • I ° R20' 4 3' (w) DOOR v • �- J ......................... - _ NO PARKING FIR • ,• '' COVERED - v - LANE SIGN FFE=492.99' _ •o _�ANOPY= 1 1 1 1 1 - R _ 6,..° 62.5' 6'(W)OBL. DOOR—• • ". .. v -.' 4 DOOR OPEN/NGSi R4' ° NO PARKING FIRE CROSSWALK LANE SIGN R4 (DCG-12 6" DIP R4' U 1 LEVEL • —co �`�y\\�\�� -' D G TEMP. ADA PARKING ' (PORTIONS W/RAISED FOURSQUARE COURT l) I ? SPACE. TO BE a -;. CLEARANCE) ^^o (SEE DETAIL C1.0) . a � _ PROVIDED DURING 17 BRICK SCHOOL FACILITY 6 �w)„ BASEMENTACCESS TEMPORARY DUMPSTER LOCATION. PAVEMENT TO BE REMEDIATED AFTER RELOCATION OF DUMPSTER TO PERMANENT LOCATION. 18' SA SAN SAN SAN AN G CG-3 CURB `' O I12 30 ARKIN VC V NO PG FIRE CONC. WALK LANE SIGN L \ D R5, R5' I R48' \ R5' [_9 G� Q 18 O7 m R20' \/ \ \ 36^DEC ? 36' 14' INO PARKING —mo I FIRE LANE WATERLINE SIGN PRIVATE R48' \ 30' WATERLINE D \ a 4" DIP CLASS 53 �����\�� WATERLINE �'����� PRIVATE SANITARY D \ CG-6 SEWER LINE Z \ CHECK VALRVE WITH ASSOCIATED BYPASS. CONTRACTOR TO 11 25° BEND NO PARKING FIRE R35' SUBMIT DRAWINGS TO A.C.S.A. LANE SIGN\ FOR REVIEW & APPROVAL. WATERLINE FIRE ACCESS LEGEND: NO PARKING FIRE PROPOSED MANHOLE TO BE ' WATERLINE CONNECT TO LANE SIGN EASEMENT 202" WATER METER VAULT CONSTRUCTED OVER EXISTING LIGHT DUTY ASPHALT L EASEMENT EXIST. W_ SANITARY SEWER LINE - HEAVY DUTY ASPHALT / REMOVABLE RAF BOLLARDS CONCRETE HEAVY DUTY CONCRETE , 8"X4" � 6V� R59' 4' BLACK PLASTIC LIMITS OF MILL & OVERLAY / 11 ,SAN SqN� TS&V R12, COATED CHAIN \ R12 LINK FENCE / / PERIMETER PLAY 8"DOG ��/ / SAN �Sq�y\ �\ AREA BARRIER (INSIDE OF 48"POP �a6 / SAN / \SqN� CG-11 \ \ \ FENCE) `uX 12^DOG /�/�SAN� 1.�X1�' f0^� - ---- �N \ \ Sq \ \ \ N� a 10"DOG / F �R (a T C6.0 — INSET C _. 8"X6" RED. 6" FIRELINE GV; 8° x 6° TEE REFER TO SHEET L5.3 FOR DETAILED AMPHITHEATER LAYOUT GYM ±10,709 SF HEIGHT=29'-0" 402 8"W C 1.0) 45° BEND 10' BASKI GOAL XI� TMP 45C-1-M-1 ' ROBIN J. & YUKIE K. MARSHALL / DB. 1963, PG. 720 / / ISCALE 1"=20' / 0 20' 40/ / TMP 45C-1-M-2 M E w o N U N � o E Oai E v 3 03 � U M o] .w -ui • U / N • N v • • w � r 5 x O �v ¢� L'i c N � v7 M a a � J W �r Z O a_ E2 U U) Lu } 0o LU QU) Z O_ Y U) D_ > N co o Uj Y o U Q U Q U LU Z Y uJ LU U of o o o C)) RRMM ARCHITECTS, PC 1317 Executive Blvd, Suite 200 Chesapeake, Virginia 23320 ff CLINT W. 5t ui7S FFLET I ` Lic. N 54380 �Ar 5/3/2021 ,��• :1A1 %% *#44Nt•N� I z O Lu LL_ O Lu Lu J zi J Q J O � U U } of J Q z Q Z_ ,fix W LJJ o > z Q Lu Y Z ^J^ O L.L m W D oQ O O w m Q Q J U Z W j >0) a- SHEET C4.0 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 J H G F E D C B A \ \ \ \ WOOD FENCE �- \ / 1 \ CONC. \ c \ I-) fI \ (HT=BJ / I \ 8" DEC PLAYAREA QO f / _ 4,So i \ \ \ W/EQUIP. \ ` \ \ \ \ \ \( ULCH) \ \ Q \ CHAIN -LINK iA \ \ / \ ' \ \ \ /.�x 14. /' - _ \ \ FENCE (HT=7) \ \ ` \ 203 \ . 9 TD13 ASPH _ _ / \ ENTR. 92-__�\ \ \\ \ \ \ \ l\\ `�' \\ 82- - - - II _ - - - - - - - - - _ _ \ \ \ \ / I CHAIN -LINK l � - / \/ \ \ O \ \ \ 2Q0 FENCE (HT=3 J c'r ® \ \ SC461 / - \ \ 493 xx�—x--xx——x— ,: �`EX_._1.3_i — — — — \ \ g8 36"OAK / DBL. DOOR - - - - - EP \ / - 492- AAc1 \ \ 8 \ 205 \ \ ASPHALT PARKING AREA 0`I' ' \ 1 I ° _ I ■ . I \ a \ ° 206 UGP �_ q _ T \ \ 6"PIN>' — - —l/Gg— `Bi•- IIGPy=s.-•� COVER D� -5 \ \ I \ \ 206 \ Q ° s. ° •' ° '.. °. a GAUOP . ° • \ \ \ \ CONEREDI I \ n \\ \ / \ C/XNOPY I I \ 6' (W) DBL. DOOR ° ' ®� 1 1 I I 1 CONC. SW / \ \; : > - . e-<e . <S°•.a°> / I FFE=492.92' I ° / \ 146 / ( ) DBL. DOOR / � s w D I 1 � 1 ICLt 8,148 SFAS 1 ,� V� � �e D _ b \ � DEC •" __ \ \ a v uy 12" / I 11 II HEIGHT 19' 4" 1 I \ ° ^ I _ - _ FFE=492.97' I p I v _ '� � '. ti 3' D 1 � I � APPROX. LOCATION OF 6" I \ 4 3'(W)DOOR 1 I I I PVC ROOF DRAIN. a I rn ASPHALTROADWAY J 147 I � I -492__/ \\ I \ ..9 _- c----'--------_ ° .re J..- / f �I- •. ® i \ A \ 9 v9 Z / COVERED �. v \ 6"4 E \ \ ASPHALT PARK/NG AREA O 26" OAK I \ \ - - + v • ° o • • - r� \ 2 \ \ 146 /) LSAI CANOPY i I• J ° s'. 144 \ 9 145 e 8 I 36"OAKI I I �1 \ I' 0 1 _ II ! i COVERED V \ _ _ I v .. _ ' - v° ,8 . ♦ I f \ . a� .. / ° 5P PS`� 1 24" CIRCULAR \ \ 497 i ' / ? I I o v P ; v - .. _I -Cit� --- v rl °..N/d . �• " COVERED o, ,•I /C CANO s i / F �I MHBASIN 11 SW CANOPY I r 1 155 ACCESS \ £ - \ • I APPROX. LOCATION OF .' °. o LI e .. '' �. "j�•l I / / � v° I /- - - - - - - \ 6" PVC ROOF DRAIN. L \ 1 A9 143 \ \ i / el' � ♦ II /1 Ir."� I --- i 214 \ 213 I' rI 212 � I /1 \ � I ' • • _ � iii I I � �v � I 3'(W)DOOR 7 1 / I v \ I p 1 \ � � `q 1 / ��^� •/ 5" HDPE FROM EXIST. ROOF $_,�t-- D /F' • \\ \ 1\ �� t• / I '.'.°•4 I `� C:� �.��.> `! DRAIN. CONTRACTORTO .'v \ o �y9 1 "•< \ / I ♦ I \ °� FFE=492.94' VERIFY INV. & LOCATION.F. .. • v ,. 3'(W)DOOR CLEANOUT 215 Z I 217 : s.•� I/ 3' (W) DOOR \+ 'v v I COV RED ■ •l .. \ _ I _111 I / I I \\ FFE=492.95' -� \ ■ ■� \ \ \ d ° e ° • " P v s . v ° o � ° \. < 4 DOOR OPENINGS ■ OPY . v' i ' • �.' � � "�N \ • 6' (W) DBL. DOOR \• v 1 LEVEL • D G 141 \ II / ` (PORTIONS W/RAISED l \ I I\ I (GRASS) / d CLEARANCE) \ \ \\ \ \ 140 1 / I BRICK SCHOOL FACILITY 6' (W) D I v W/BASEMENT CONC DBL. DOOR EXT. CONC (CONC) // 1 I Z 1 \ 1 / BASEMENTACCESS I l I - (l00 WOODRBOOK DRIVE) I I ` 1\ 14"DEC G) I \ I: I=492.97' 3' (W) DOOR ` 88 \ / COVERED � / I .;, EXT FLOOR=48775' / P \ QANOPY I I 5 CONC. STEPS, I ` "\\ 1 - \ I `P • APPROX. LOCATION OF 6R/SERSa • ■ I / l 1 1 118 6" PVC ROOF DRAIN. APPROXIMATE / \ \ \CLASSROOMS FLEX SPACE I ® I LOCATION OF / l HVAC CHILLER / I c 11,380 SF I .N APPROX. CONDENSER ON I / I PROPOSED - \ �" ',l r• _ J..� I I - \ , \ HEIGHT=20'-8" I 1 y;, 11 CATION OF CONC. PAD 3' W ( ) \ . I / 3' W DOOR 6" PVC \ \ 87 �� \/ / 1 Z I 'PROPOSED I I ( ) / MEAN TOP=493.00' DOOR FFE=492.99' ROOF DRAIN , .. d GI , :.` \ I 1 6" PVC 1 /° <' / \ I I ROOF DRAIN 6'(W)OBL. DOOR \ 1 116 CHAIN -LINK COVERED I I I \\ FENCE W/BARB - CANOPY • a APPROXIMA 6"C)AK / a \ APPROX. LOCATION OF I ' / I 6" PVC ROOF DRAIN. \ I (HT=87 i e; II ^.. J �° \ LO AT OSE I \ A \ 115 ELEC. CAB/NET ON -� x 6" PV \ CONC. PAD ® S I / • e ` . ` Y / \ APPROX. LOCATION OF 6" \ ROOF DRAI \ 1 { \ COVERED \ FFE=4DOOR I p O 9� I I Z A \ CANOPY • I / G \ \ \ \I. \\\�\Qa \ • ,y° °° d + (W) I i c .I a.Y / 8 ,. PVC ROOF DRAIN. GYM \ / U . /, \ / l . FFE=49296' I I l' a G� , ` / 128 ±10,709SF d� , +` �•�1 6'(W) 6'(W)OBL. DOOR / ' `', •Ip� / % HEIGHT=29'-0" \ 1/i \ \ \ \ \\ \ \ \ \ 6"OAK \ \`\\\ I _ \ \ • ' ` <J.� , °'/ ..�� 3 \ °_., DBL. DOOR I '. \ I i STAGE/DINING I 27 .,• / \- mom_ ao ,f I 2,657 SF / II 1 v� . , / � / I :a : j► L. ., 1.�\ .. �.. •-•. o-• °..e • . _i - -___ A IGHT=15'-4;" \ \ 11 `�� .. •' /. ` �` `+-iy - D 1.14 I<. \ q - (: COVERED; . J >. I D> I �� --_ -- --•` '• F�.v d �►�j°i �� / ..` .., 11 ` I`R /id ����I� ���A�-iti ir.F I - \ / -' c<. II 1..', , 112 °\ \ - T ��\/ / / •" F- /TIE GYM ROOF DRAINS TO / PROPOSEDSTO MSEW R 11 I m \ \ \ w I �� \: ► ;111,` - j G— I I \ _ J ° 125 F1kPES125&127 1 E� 480 - _ _ �t \\ p \\ \ CONNECTTOEXIST. D \ 1 I o' \ \ \ \ \ \ l \ \ °� \' ✓. I _ ROO�DRAiiJ- _ ., - Co 47) 152 8"W g" 8„W _ a 8„W <S uGP IN, 8�N \ \ \ \ \ \ \ F6"PVCRO r --.. ----- 6� \ \ S UGP— — —UGP— UGP \ \ \3 oAtC\ \ \ \ 137 $ SAN s SAN - SAN N \ \ S SAN �' AN / 6 135 -� \ \ 8"W 133 D _- - -_ \ ENCE �� 1 11 \\��`\\ \\\ �\\ 136------d� -- /° \ \ �\`_- SWM CILITY A 385-LE 84'_CMP $ l \ \ \ \ \ \ \\ 3ft DEC' , - - - - - - - - - CARTRIDGE _ _ A _ _ _ 1 _ / - - - - - _ / \ / _ - - - - - - - Z - - STEM A - - _ _ _ - - 87 - - - -48.9 \ / 102 105 ---------- - - _�$•I-_ BOX --_ __ _ _ ♦ \\---� -\ �// �... \ - - _ 101 \ ` _ _ \ \ \ \ \ - _ 6" PVC PIPE TO - _ _ _ PRIME B(�YFILTER _ OW105. - - - --- ---- \ ` - 106 INV 481.36 \ (GRASS) 6" PVC PERFORATED- \\`� 108 6" PVC _ I _ PLAYGROUND _ _ NOOD FENCE 485 ----- __ / f / (HT=8) \\+ \ I \ \ \ 87 \ _ - i485- \ SCALE 1 "=20' 48"PINE _ _ W � / W � � ` \ �� - _ - \ WOOD FENCE 0 20' 40' W / II W \ ` \\ (HT=8) / / tq _\_ TMP 45C-1-M-1 SAN / SAN - - \ \ ROBIN J. & YUKIE K. MARSHALL D8. 1963, PG. 720 8"DOG/SAN/ \SAN �\ \\` I \ �\ I / / ?�//� i /SAN \\�\SqN��'------�483/ 48" POP IZ DOG , a '�REFER TO C6.0 - INSET B ` M E 0 0 rn u N� � E vE C m 3 0 3 ^ m M U W i• o� • � � M Y 7 • mx O w 0� m c N Lq Lq Q � c E r' N _ wa v a 00 J W m � Y U) :E D_ C14 It CD CD N M CAM O (n L0 Y U o Q U Z Y LLJ LULI U < J H G RRMM ARCHITECTS, PC 1317 Executive Blvd, Suite 200 F Chesapeake, Virginia 23320 O LU ILL 0L LU LU __J 0 U) W 2Z Q Z W > Q J W Y � � � ° Z co LLJ J Q 0� W 00 U W Z j o a SHEET C5.0 E D C A 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 J H G F E D C B A ' 1 1(.I 1I \ I-- 82 s-- APPROX I / LOCAT/ONOF 1' �` l - - - - ROOFDRAIN I � � I I --- 212 (TYP.) I' r .1.1 214 213 • ' I 7y 7 \ SO CURB INLET W/MHD I . a92.95 N \ TOP=475.49' Q / E 3' (W) DOOR INV. IN=46799'24"RCP / 5" HDPE FROM EXIST. ROOF V. 4 1t D /ice 1 INOUT=46799'24"RCP 488.82 ry� / / I ® DRAIN. CONTRACTOR TO VERIFY INV. & LOCATION. ° Z 216 CLEANOUT215 217 492.75 1 ' < { '�2" HDPE I CONTRACTOR SHALL VERIFY LOCATION OF T - I 492.95 .... - 1 I o \ // EXISTING WATERLINE PRIOR TO CONSTRUCTION SCALE 1"=20' _ I AT SLOPE 200 // I I \ - �+A \ � - +--489.26 \ L, : ° '< 1489.42 \ OF THE PROP. STORM SEWER LINE. 0 20' 40' 3'(w) DOOR \t 1 , °` _&COVEii D _ l I' %L \ Z AfJOPY * p O I \ I l I FFE=492.95' 492.95 a 6' (W) DBL. DOOR °' _ SO CURB INLET W/ MHD / / �y / ej4 I SO CURB INLET W/ MHD \ TOP=475.52' \ - \ - 489.42 V. OUT=468.84'24"RCP ` l ' l Qk - 2 j TOP=46Z14' / I I 489.62 --ti °. \ 1 / a� \ \ ' MFRF Q O (DEPARTINV. CIL ING PIPE SIZE., / I , \\ 489.62 < . I - / 1 SEE SHEET C4.0 FOR I 489.62 rn \ / /'\ \ Ri(,F SDI ® 15"OR 18"RCP) i \\ I BASE BID I I\ \ \ 2 / ^ ifty MHS s / D ADDITIVE BID ITEM #1 489.85 I 4t!. 2 p \ I / b• I - 489.1 BASE BID / Z I y TOP=460.99' I I q INV. IN= 457.11' (1) SIZE UNCLEAR, POSSIBLE LATERAL SEE SHEET C4.0 FOR ADDITIVE BID ITEM #3 // / I I 489.85 , 489.50 I 1 / I \ \ INV. 1N-4575 t 4" (2) FHA , \ \ I \\ '.75' � , -II- COVERED 89. 2 IAPPROX I I , \ \\ INV.OUT595707�B TC. 4912.95 1 \ / ANOPY I \ I LOCATION OF / I I b \ 492.95 CF I WATERLINE / ,� I \ \ \\\ '^ i 12" NYLOPLAST 489.32 \�-15" RCP `N `\ ` \ ' / / / \ \ 1 I I \\\ I �1 a....l. ,. 492.95 I // NVRD 8630 EX. IFACSA �O \ \ \ I 1 \\ I. Ih�21 . 492.85 WATERLINE EASEMENT D \ / \ - \ ` \ \ b o 3'(W)ASPHALIT� _'. DB. 3503, PG. 371 \ - //C ` \ . l I 1 I CUT (FOR W/IL) \ \ N) DOOR /.\l,\FFE=49299' 6,\.. 492.70 I I i o 4- IMP 45C-1-E-39 \ \ ` 3 Fie I 6' (W) DBL. DOOR f I / I \ _ _ 12' 492 5 89.1 T W. & SUSAN B. WILSON \ \ \ f0"D - - _ _ - - _ _ COVERED I I ' 492.70 \ I DB. 797, PG. 159 \ 1 \ \ _ , , _ , - - - _ _ CANOPY I #.40101, r by I \ \ CEDA _ �-^ - r I / \ 488.92 488 45 j - \ \ 1 I - -478 - I SO CURB INLET W/MHD 1 ' I \ D TOP=9606T Z / 89.20 PROX. LOCATION OF 6" 02 ROOF DRAIN.INV. OUT=455.35'15"RCP I 1P -- - _ _ _ _ - - \/ I I l489.62 GYM 128 t10,709 SF -6 "DEC 1/ HEIGHT=29'-/0 " STAGE/DINING49d0 / �- '48\ B.92 886 115 12742,657 SF / I I �65 I - - - N .11 \\ _ - /- -' _ _ I I I •° ,• `_. . •\ - }a :• A .p.-. ,a, .15QIGHT-,00 . / <D 489.08 1 I489.62 GYMbING 490 26 FFE = 489.62TW 494.90 LQAyB2 2'ITH HANI 9 SLOBW49171W1/4. V ` 494.95/ 4 .35 TIE GYM ROOF DRAINS TO T013 Jj125 P00RMSEWER I a -g.1`I / / 3.7' a 490.23 RtES125 & 12 . �g \ 203 / 482 A \ Lp 1 4 240 I _ 4�9.62 \ ` ` `--/ I � I `., R13.5' °.< °.' . j ,.1 / / ,a. 489.45 489.�5 489.62 48 .1 00 cci pP89.00 UG App.ROX. LOCi� O . a UGP- - \ SCALE 1 "=20' s w ^ - ' � UC - . I UGP- - 24U' GP - UGP / 8 � / SAN / AN ° V \ 488. Cq \ 89,90 - \ I I 0 20' 40' 0 205 \ \ IMP 45C-1-M-21 I BASE BID ITEMS SERAFINA B. OSWALD \ 9 � - - \ \ DB. 2754, PG. 354 49 11 95 ° a\ \ \\ 206 \ 1 \ 206A \CLASSROOMS / FLEX SPACE 11,380 SF \ \ \ COI EREDI j \ B ` I / \ \ \ \\ \\ \ \ HEIGHT 20' 8" �✓ 490.95 n. \ CF(NOPY 1 \ 8" 8'-I 6C \ \ , 485 / - - - \ ` \ . 87 206D \ I LSA \ \ ` \ \ \ �\ \ ``` \� p '� a \ 1 1 ' 1 I BAYFILTER \ \ I / II I� \ \F�p \ \ \ \ ` �\J /' a \ PROPOSED \ \ 1 1 I I ., 91 209 CARTRIDGE \ I I / ` \ `r \ \ \ \ \ \�\ 6"�qK / GAS LINE APPROX. LOCATION 0 I I a . I FILTRATION \ � \ \ \ \ 6" PVC ROOF DRAIN. I I I I I TMP 45C-01-M-19 /' \ zi I\ \ WON PEETHUM & / '4e�\ 48 \ \ \ ` �`\�\ I o p 139 4" SAN. SEWER STAIRS 490.95 a' \ SYSTEM B / I ° UREERAT PEETHUMNONGSI \ \ \ \ ` D \ \ COVERED \ CLASSROOMS I - D \^ \` � ea, 08 � h a y 1 INV. = 487.56 1 I t 8,148 SF APPROX. AR OF RELOCATION `\� { 49 .77 I 1 \ DB. 2828, PG. 99 / \ � , ,HEIGHT=19'-4" I -- ` \` FOR EXISTING E �S. I IMP 45C-I-M-20 da3 _ _ _ _ - - - ` \ \ \ ` ` I. \`\\ \ CANOPY C.O. I \ : \ ` i \ \ \ `\\ G1 \ TYP 8.95 APPROX. LOCATION OF 6" I ,, ., � ; � � � CONTRACTOR TO COORDINATE RYAN B. & ZARINA M. BURDGE / � � i � \ \ ` \ ( ) :. rn I I I PVC ROOF DRAIN. o..:1.•iI \ _ �I DB. 3893, PG. 202 I / _ i \ \ \ \ \ \ 1 \ \ ` FINAL LOCATION WITH OWNER ' \ \ \ \ \ ` J6„OAK\ `\`� I �\ • �° I I14 H_ I \ \ \ \ \ \ \\� EXIST.T .°.d CESS _ _ \ / \ �i 8 \ \ T648F\.7 \ \ -\' \ 1, `�\`� 488.28 ! < .. \ , ... y 4afi .t t 488. \ \ \ 6 ►-� .s° as 4" SAN. SEWER \ REMOTE FDC 1 / 1 _ _ \ \ / \ \ \ \ \ \ 1 \``\�`�' ► �\� 4" DIP/ II I 490.95 TC 485.40 ` \ 1 \ LASS INV. = 488.62 I \ / \ 488.4 ��---- j- _ 0.95 45° BEND I A� 7p \ \ \ 488.60 I �\ - (111},, ` 36�NE� 480 - ` \ \ \ \ \��\ \ \ GFHA \ R M TE �� � \ \ \ \ \ \ , I 'rl I \ \ 9GF�0 \ \ ` _ \ \ \ \ U+ \ \ \ \ \ \ \ \ \ EXISTI TC 6 GV 4 CRUSHED RiLP \ \ \\ `\ \ \ 487192 .� 4" DIP GRAVEL TC 484.V5 \ \ \ \ 24 / TRACK \ \ \ i \ 9 I l �\ \ 48"PINE � ^- - ASS 53 \ \ \ EXIST. TC I- \ _ _ _ 152 5 \ \ \ 488.87 _ \ \ a I 8"X6" RED. 487.90 8"X6" T _ _ i - 22.5° BEND; 0 49E0.91 , 24"CIRCULAR \ \ � \ i - - _ - - - - - - - - - - _ _ _ \ \ 11 BASIN 1 SWM FACILITY B \ \ ` \ \ / I � � T 488.54 8" X 8" TEE; 8" I 1 155 LF OF 72" CMP I i \ ` \ \ \ g IRFELI MH \ _ 8 .7 \ ! \36'OA� \ 137 FIRELINE GV I g \ _ ACCESS / \ \ - \ \ \ \ \ \ 0 135 12 133 / EXIS . TC 151 \ \ \ \ ` ` �\ 488.E �G 10' BASKETBALL I \ \ 1 \ \ \ r 212 CKLEBALL COUR / GOAL \ \ \ ` IF TC1484.70 1 \ \ \\ \ \ \ \ ` \` \ \ 136 - -134 1 88.02 I (SEE DETAIL C1.0) ' \ \ \ \ \ \ ` R -- TMP 45C-1-M-16 WOOD FENCE ' \ \ JAMES C. & KATHERINE (Hr=s)- I SCALES 4-03 - /' , 48 .80 \ \ DB. 3743, PG. 329 - TEMPORARY DUMPSTER \ \ \ \ L \ \ p\\ 'LOCATION. PAVEMENT TO \ \ `\ _ 3fz'"DEC' _ _ _ - _ _ _ - _ _ _ Bt EMEDIATED AFTER -• \ / I / \ \ \ - - - - _ _ RELOCART dlJ OF DUMPSTER \ \ \ \ 149\ Z TO PERMANENT.LOCATION. - \ \ ` � ` � \ \ C 486 "'i .F.. • 450BEND IRE LANE 1 \ ` SI / FOURSQUARE COURT • \ GN I / 9'BASKETBALL /\ \ \\ �/ \ i' \ \ \ \ \ \ , ` \ ` \ -480� 101\\` -WATE \ \ C9\ S DETAIL C1.0 I GOAL / \ \ - \ \ \ 485.54 ( ) 95 i \ i \ 1 Co \(GRASS) �D, _ \ CO \\ GRASS FIELD AREA 100 I l \ \ \ \ PRIVATE SANITARY y \ /I 489 /l \ //\ .\\\\ -.$EWER LINE \Z ' 8' BASKETBALL ` / I ` GOAL I / / *48"PINE 8"X6" RED \ I I- R PROPOSEMANHOLE TO BE \ d89 5 / / I / ` � I / � 20' WATERLINE 6" FIRELINE GV; \ 3 8" X 6" I a 3"DEC / / 1 CONSTRUCTED OVER EXISTING ` -EASEMENT - � I I � SANITARY SEWER LINE ` TEE \� \ FHA 488.8 ' 1 / \ \ \ I \ * 48"PINE \ \ \ `� \ \ ` II \ \ \ \ \ \ JI 11 \ APPROXI6" GV / REFER TO SHEET L5.3 LOCATION 9.80FOR DETAILED PROPOSE I 10' BAS \ ETBALL 3"DEC `^' I\ AMPHITHEATER LAYOUT 6" PV / I \ L \ PPRgOp�X..pL;OCATION OF 6"\ \ ROOF DRAI GOAL I I \ / i I \ \ \ \ \ ` \ I` \ 6 RC7lJt"DRAIN. / ` P/ I APPROX. AREA OF RELOCATION \ - I I GYM \ UG 1 \ I BS 489.70 t10 709 $F / I // FOR EXISTING SHEDS. I \ I I I 8"DOG \ \ \ ` \ CONTRACTOR TO COORDINATE / _ ` - / I \ HEIGHT=29'-0" _ / \ / I / FINAL LOCATION WITH OWNER I � I I / � / 1� � _ , �a ` \ 48"POP /' Lp GRAVELX, CRUSHED \N I / / i' \ I // III \ \ 12"DOG \ STAGE GYM ELEV. = 491.85 FFE = 489.95 / I TRACK. 1 / , - \ \ I ( I 1 ` \ \ \ `; EX.1?' I l ® / MATCH EXIST. \\ ` SAN / TIE GYM ROOF DRAINS TO I DEPTH AND I / \ I 1 I I \ \ a' 10"DOG \ \ , / I / / 0 PROPOSED STORMSEWER 3.7' 1 v MATERIAL / O I I 1 I I \a5 10"DOG I R),PES 125 & 127 24 ^ / O CHAIN -LINK I I 1 \ I \ I 4W47 Q / '\ FENCE(M4 T=,o I 1 I I I \j 4k55 1489.9 I I \I I I 1 XI \ O. \ \ I 1 I II \ x HEDGE(6'W) \ \ \� / /SPN WOQD FENCE ` ao c I I I (HT=7i I I I I II (HT=3�- EP APPROX EASTBROOK BALL -FIELD SLAB=48 .12' I /' i I 5o R� // aaa\\^^^\ DRIVE / INFIELD 9.2'x 1b.5' I I \\{ \\ ° BEND UGP- 2`/ \\ I / I DUGOgIT SAN UGP-UGP X 000)8"W 0 -P90° BEND 0 489.30 SAN I I , SAN SCALE "=20' i481 INSET A 0 20' 40' 2, W77E INSET 6 48 EASEMENT I o M E 0 0 rn u N� >0 E v E O m 3 0 3 ^ m M U W i• o� � � � M Y 7 .0 C N > `° Lq Q � c N y � = 2 7 v a 0 J w w� CD CD M I Co O � CDQ U W U) U LU Q Z Y U O Y U 0 a 0 0 U J H G RRMM ARCHITECTS, PC 1317 Executive Blvd, Suite 200 F Chesapeake, Virginia 23320 if CLINT W. 7: O/yS FFLET is s�� 54380 4 0 5/3/2021 ��•�;5�0;1 AL F.N�.•• Q L.L W ~ O m LU w LL. 0 Q 11� Go F w J U) i 0 w 0 �.Iw U) \ / Q w w Q 2 Z W J w Y U) Z O O W C) Q J 0� O LU X 07 Q D Q U Z W j a o SHEET C6.0 E D C A 1 1 2 1 3 1 4 1 5 0 7 0 I 1 12 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 J H G F E D C B A 495 N G Ci w W w C', N 0 OF � a¢o D a O N ro w V ��aa0 Z ry (~F-Z p V 2 z z 0 z N~n�z z 495 PROPOSED GRADE 490 490 485 485 480 7 480 216 19.2 ' ' OF 12" HDPE @ 0.63% 475 475 o0 10+00 11+00 STR 217 - STR 213 HORIZ SCALE: 1"=50' VERT SCALE: 1"=5 kM W •1 O tiy a .� O Ld Z o UL N '�9�y " cD Ci W (v� _O LO oN LL CJ '0 ON E W V N °D W 4 CL F o !9 ' Ci® me d j X X N r W N- �U) 0.0� 0r ZZ_ O W W in� C!.�... ♦Z Q 0-> Sc� zzz0=® 7 ��Z .<a > >» �.- z_ Z O N~IJ�ZZZZM�O»> 500 500 505 N F z z z PROPOSED 495 GRADE 495 EXIST. GRADE 490 490 EXIST. ELECTRIC CONDUIT Nz 480 480 210 93,65' OF 12° HDP€ 7.94 48:91"i° 75 475 470 470 465 465 500 500 PROPOSED GRADE EXIST. GRADE 495 495 a 490 490 SEWER r1 SWM FACILI B 8B - 8A 175 LF - 72" CI P SLOPE AT I I_ 0.5%IN DIRECTION OF WEI PLATE 485 485 INV. IN = 483.85 INV. BTM = 480.93 48071 4$p 58.10' 214 67.49 OF 82.24' 212 6340'OF .5' MIN 12" HDPE 12" HDPE @4 9°J° @ 1.04% 475 0.75% 475 STA. 0+88.65 8" W TERLINE 47 470 SWM FACILITY B 175 LF - 72" CMP SLOPE AT 0.5% IN DIRECTION OF WEIR PLATE - q+ J 10+00 11+w + .) 9+50 10+00 11+00 12+00 12+50 STR 211 - STR 204 STR 215 - SWM B HORIZ SCALE: 1'=W HORIZ SCALE: 1 "=50' VERT SCALE: 1•=5 VERT SCALE: 1"=5 8.34' 19 v v v v-v v v v v v v vv vv v v v vv v v v v vv v vv v v vv v v v v v v ry w H w U W :D � � J IY V W W J i* O LL CD N pj N M m v m U = m 0' W ~p 0 r m N 7 N Z is Z® O v o m F- 7� O-®Ct V� VM Ln �� 0>> m N Cr) F z Z in (� W N to N 7 O -QL m W JW Q Cli C)ONO N Cq U W CD CN LO cli Z�a0 O� > Q»oz > ¢aa4�';6O »> �ZFZ N 17z UZZ> > ? Ni-Z J 495 N N r z z 495 490 490 PROPOSED GRADE 485 485 EXIST. ELECTRICCONDUIT INV.#899 479.94 480 480 EXIST. \ GRADE 205 475 ' OF 475 96.42 209 HDPE - OF @ 0.50% 203 2'�\ ✓ 15" HDPE 70.05' ' OF f @ 1.47% 15" HDPE 2.5' @ 1,65% 470 470 207 203A T 'OF 61.0' 'OF 201 15" HDPE 15" RCP 51.67' OF @ 0.50% @ 8.90% 15" RCP @ 0.50% 465 465 460 .460 9+50 10+00 11+00 12+00 SWM B - STR 200 HORIZ SCALE: 1"=50' VERT SCALE: 1"=5 0 50 PROFILE SCALE 13+00 13+50 BOLD AND OR BOXED INFORMATION DENOTES AS -BUILT INFORMATION FROM SURVEY ON AUGUST 18, 2018 206: MH-1- STA 10+00.00 TOP 486.30 INV IN 477.91 (207) INV IN 480.00 (206A) INV OUT 477.87 (205) a L U (0 N o �- � N N � v m0,(`7M co W V , V co U) W F O CO Z 0 O 0U)f-z z 495 495 490 490 485 485 480 480 475 475 206D: 12" Basin - Circular Grate -STA 10+36.27 TOP 487.70 INV OUT 484.40 (206C) —206C 26.32' OF 12" HDPE @ 11.74% —206A 9.95' OF 12" HDPE @ 11.16% 9+50 10+00 10+50 STR 206 - 206D HORIZ SCALE: 1"=50' VERT SCALE: 1 "=5 M E O O N vN O E O v_E � 3 P' 3 0 UM W U T • • O O N • N V • N • x O U Q LL � v C ry N �p c � 0 ry � M a V p� J W m W Q U 0 Z O N CD o m o rn CDQ LU W W U Z U Q Z Y U 0 Y Q Df W 0� 2 0 a 0 O U J W G RRMM ARCHITECTS, PC 1317 Executive Blvd, Suite 200 F Chesapeake, Virginia 23320 (/ b /)bZZ-ZtfZtf *,pLTH woo 9• CLINT W. 7 7 S FFLET > L. • �� ° Lic. N 54380 �4� Zs0 5/3/2021 •� ONAL EN ;••• N�4NNN� z O U) LLI LL O LL w J i J O O U w U J LL z Z W J w U` � w Y LU 00 Z ' ^ `/J U C (If W C LLJ J n/ O O O w m Q W F U W 0 Z O Q 0_ a 0 SHEET C8.1 E ■!7 C A 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 J H G F E D C B A DEQ Virginia Runoff Reduction Method Re -Development Compliance Spreadsheet - Version 3.0 BMP Design Specifications list: 2013 Draft Stds & Specs Update Summary Sheet Site Summary Print Preview Print Total Rainfall (in): 43 Total Disturbed Acreage: 8.26 Site Land Cover Summary Pre-ReDevelopment Land Cover (acres) A soils B Soils C Soils D Soils Totals % of Total Forest/Open (acres) DDID 0.00 0.00 0.00 0.00 0 Managed Turf (acres) 0.00 0.00 4.66 0.00 4.66 56 Impervious Cover (acres) 0.00 0.00 3.60 0.00 3.60 44 8.26 100 Post-ReDevelopment Land Cover (acres) A soils B Soils C Soils D Soils Totals % of Total Forest/Open (acres) 0.00 0.00 0.00 0.00 0.00 0 Managed Turf (acres) 0.00 0.00 3.20 0.00 3.20 39 Impervious Cover (acres) 0.00 0.00 5.06 0.00 5.06 61 8.26 100 Site Tv and Land Cover Nutrient Loads Final Post -Development Post- Post- Adjusted Pre- (Post-ReDevelopment Development &New Impervious) ReDevelopment (New Impervious) ReDevelopment Site Rv 0.67 0.61 0.95 0.61 Treatment Volume (ft) 20,005 14,970 5,035 14,970 TP Load (lb/yr) 12.57 9.41 3.16 9.41 Total TP Load Reduction Required 4.45 1.88 2.56 (lb/yr) Final Post -Development Load (Post-ReDevelopment & New Impervious) Pre- ReDevelopment TN Load (lb/yr) 89.92 72.53 Maximum% Reduction Required Below 20/ Pre-ReDevelopment Load Total Runoff Volume Reduction (ft3) 0 Total TP Load Reduction Achieved 4.86 (lb/yr) Total TN Load Reduction Achieved (lb/yr) 0.00 Remaining Post Development TP Load (Ib/yr) 7.71 Remaining TP Load Reduction (lb/yr) o.00 ** TARGETTP REDUCTION EXCEEDED BY 0.41 LB/YEAR ** Required Drainage Area Summary Pre- Final Post- ReDevelopment Development TP Load Post-ReDevelopment TP Load per acre TP Load per acre per acre (lb/acre/yr) Ib/acre/ r lb/acre/ r 1.38 1.52 1.38 D.A. A D.A. B D.A. C D.A. D D.A. E Total Forest/Open (acres) 0.00 0.00 0.00 0.00 0.00 0.00 Managed Turf (acres) 1.33 0.10 0.00 0.00 0.00 1.43 Impervious Cover (acres) 3.32 0.84 0.00 0.00 0.00 4.16 Total Area (acres) 4.65 0.94 0.00 0.00 0.00 5.59 Drainage Area Compliance Drainage Area Compliance Summate D.A. A D.A. B D.A. C D.A. D D.A. E Total TP Load Reduced (lb/yr) 3.93 0.93 0.00 0.00 0.00 4.86 TN Load Reduced (lb/yr) 0.00 0.00 0.00 0.00 0.00 0.00 Drainage Area A Summary Land Cover Summary A Soils B Soils C Soils D Soils Total % of Total Forest/Open (acres) 0.00 0.00 0.00 0.00 0.00 0 Managed Turf (acres) 0.00 0.00 1.33 0.00 1.33 29 Impervious Cover (acres) 0.00 0.00 3.32 0.00 3.32 71 4.65 BMP Selections Managed Turf Impervious TP Load from Untreated TP Downstream BMP Treatment TP Removed TP Remaining i Practice Credit Area Cover Credit Volume (ft3 ) Upstream Load to Practice (lb/yr) (Ib/yr) Treatment to be (acres) Area (acres) practices (Ibs) (Ibs) Employed 14.b. Manufactured Treatment Device - Filtering 1.33 3.32 12,511.16 0.00 7.85 3.93 3.93 Total Impervious Cover Treated (acres) 3.32 Total Turf Area Treated (acres) 1.33 Total TP Load Reduction Achieved in 3.93 D.A.(lb/yr) Total TN Load Reduction Achieved in 0.00 D.A. (Ib/yr) Drainage Area B Summary Land Cover Summary A Soils B Soils C Soils D Soils Total % of Total Forest/Open (acres) 0.00 0.00 0.00 0.00 0.00 0 Managed Turf (acres) 0.00 0.00 0.10 0.00 0.10 11 Impervious Cover (acres) 0.00 0.00 0.84 0.00 0.84 89 0.94 BMP Selections Managed Turf Impervious TP Load from Untreated TP Downstream BMP Treatment TP Removed TP Remaining Practice Credit Area Cover Credit 3 Upstream Load to Practice (Ib/yr) (Ib/yr) Treatment to be (acres) Area (acres) Volume (ft) Practices (Ibs) (Ibs) Employed 14.b. Manufactured Treatment Device - Filtering 0.1 0.84 2,976.60 0.00 1.87 0.93 0.93 Total Impervious Cover Treated (acres) 0.84 Total Turf Area Treated (acres) 0.10 Total TP Load Reduction Achieved in D.A. (lb/yr) 0.93 Total TN Load Reduction Achieved in D.A. (lb/yr) 0.00 WATER QUANTITY ANALYSIS WATER QUANTITY IS ADDRESSED BY THE USE OF A PROPOSED UNDERGROUND DETENTION SWIM FACILITY'S. THE FACILITIES ARE DESIGNED TO DETAIN AND RELEASE STORMWATER AT AN APPROPRIATE RATE FOR THE 1, 2, AND 10 YEAR DESIGN STORM EVENTS. DRAINAGE AREA A 1-YEAR STORM EVENT CALCULATIONS: ENERGY BALANCE EQUATION: MAX. Q(1YR PRE-DEV) = 0.8[Q(1YR PRE-DEV)X(RV(1YR PRE-DEV] / RV(1YR POST-DEV) FROM HYDROGRAPHS WITHIN CALCULATIONS BOOK: Q(1YR PRE) = 14.44 CFS; RUNOFF VOLUME (RV) = 0.736 AC -FT X 43,560 = 32,060 CF RV(1YR POST) = POST DEV. A UN -DETAINED + POST DEV. A DETAINED = 4,966 CF + 32,757 CF = 37,723 CF = 0.8(14.44 CFS X 32,060 CU.FT.) / 37,723 CU.FT = 9.82 CFS POST DEVELOPED Q(1) = 9.71 CFS 2 AND 10-YEAR STORM EVENT SUMMARY: Q(2) PRE-DEV = 19.49 CFS Q(2) POST-DEV = 17.93 CFS Q(1 0) PRE-DEV = 34.64 CFS Q(1 0) POST-DEV = 33.68 CFS /vvv vvv v v v v v v v vv v v v v v v v v v vv v v v v v� > DRAINAGE AREA B 1-YEAR STORM EVENT CALCULATIONS: > > ENERGY BALANCE EQUATION: > MAX. Q(1YR PRE-DEV) = 0.8[Q(1YR PRE-DEV)X(Rv(1YR PRE-DEV] / Rv(1YR POST-DEV) > FROM HYDROGRAPHS WITHIN CALCULATIONS BOOK: > Q(1YR PRE) = 3.64 CFS; RUNOFF VOLUME (Rv) = 0.203 AC -FT X 43,560 = 8,843 CF > Rv(1YR POST) = POST DEV. B UN -DETAINED + POST DEV. B DETAINED > = 8,276 CF + 3,441 CF = 11,717 CF > = 0.8(3.64 CFS X 8,843 CUTT.) / 11,717 CU.FT = 2.19 CFS > POST DEVELOPED Q(1) = 2.19 CFS > 2 AND 10-YEAR STORM EVENT SUMMARY: > Q(2) PRE-DEV = 5.17 CFS Q(2) POST-DEV = 4.69 CFS > Q(1 0) PRE-DEV = 9.95 CFS Q(1 0) POST-DEV = 9.94 CFS WATER QUALITY ANALYSIS SITE DATA DISTURBED AREA: 8.26 ACRES PRE -DEVELOPED CONDITIONS: IMPERVIOUS = 3.60 ACRES MANAGED TURF = 4.66 ACRES POST -DEVELOPED CONDITIONS: IMPERVIOUS = 5.06 ACRES MANAGED TURF = 3.20 ACRES TOTAL LOAD REDUCTION REQUIRED (LB/YR) = 4.45 LB/YR ON SITE TREATMENT PROPOSED CARTRIDGE FILTRATION SYSTEMS (50% REMOVAL RATE): TOTAL PHOSPHOROUS LOAD REDUCTION ACHIEVED (LB/YR) = 4.86 LB/YR SURPLUS REDUCTION OF 0.41 LB/YEAR. 0.26 LB/YEAR USED BY SCOTTSVILLE ELEMENTARY SCHOOL SECURITY ADDITION AND IMPROVEMENTS. SEE AMENDMENT TO WP0201700019, MAY 3, 2018. 0.15 LB/YEAR AVALIBLE TO BE USED ON FUTURE PROJECTS OWNED NY THE ALBEMARLE COUNTY SCHOOL BOARD, PER 9VAC25-870-69 SECTION A PART 5. Expanded Steel Grate (Typ.)� 0 < Lwo Expanded Steel Grate Opening Detail Not To Scale LBS SF LWO SWO WIDTH 2.5 2.28" 1.03" .203" 3.0 3.44" _940" .264" (TYP,) X 1 1/2" X TEEL ANGLE LB PER FT2 NDED STEEL E BASED ON FLOW OPENING 0 U 0 O O O 1�7­1 /16" HOLES o AS SHOWN D (TYP.) 1/2" X 1 /4" STEEL ANGLE (TYP.) 1 1/2" X 1/4" STEEL 3" 3" STOCK WELDED TO BASE AS SHOWN GENERAL NOTES FOR TRASH RACK 1. STEEL TO CONFORM TO ASTM A-36. 2. ALL SURFACES OF TRASH RACK(S) MUST BE HOT DIPPED GALVANIZED AFTER FABRICATION. 3. TRASH RACK(S) TO BE FASTENED TO WALL WITH 1/2" MASONRY ANCHORS. TRASH RACK(S) TO BE REMOVABLE. 4W KTERI RES�CgE�S�SPCNFIC�AON�SNNRR THE OPENING. 5. FABRICATOR MAY MODIFY COMPONENTS OF TRASH RACK FRAME TO IMPROVE CONSTRUCTABILITY OF TRASH RACK. MODIFICATIONS MUST BE APPROVED BY MCDPS PRIOR TO FABRICATION. ORIFICE TRASH RACK DETAIL No Scale M E O O m u N vN O E O vE � 3 3 0 ri L M U W U a' • • o O N � N � • v� =x O �a LL �a C N N p >u T O N 0 � � V M a v J a, u, r m W Q U) 0 Z 0 Y Q W 2 D It O O (V Ci) M M N C:)Q W U) U Z 9P- Q Z Y U 0 O in Q LLU Q Of W 0� _ J W G RRMM ARCHITECTS, PC 1317 Executive Blvd, Suite 200 F Chesapeake, Virginia 23320 (/ b /)bZZ-ZtfZtf 2 QC�*' Fo or ?� CIO CLINT •� CLINT W. Z: W/yS FFLET i� i A Lic. N S13e6 04 :AG,r 4/23/2021 a�.` • • Z 0 J Q W w IY 0 LL °� z W Q ~ J W � J z o UJ U W U) Q Q z W 2 z cq W Y Q Oo Z \ 5 ""' U LU C C) 0� J D_ n/G LL_ O T� W Q VJ H U W � Z O Q D_ o_ o SHEET C10 E ■!7 C A 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1