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WPO202100057 Plan - Other (not approved) 2022-03-18
---------------------- I.F. = IRON FOUND I.S. = IRON SET N.F. = NAIL FOUND TMP 78-17A PP = POWER POLE WM = WATER METER WV = WATER VALVE FH = FIRE HYDRANT TV = TV PEDESTAL TP = TELEPHONE PEDESTAL ♦ �� MH = MANHOLE LP = LIGHT POLE PROPOSED MAJOR SITE / PLAN AMENDMENT - / CAR WASH BUILDING & FLEET PARKING LOT FOR ENTERPRISE RENT -A -CAR / ROSES STORE TMP 78-17G2 PANTOPS SHOPPING CENTER VSMP PLAN (WP02021 - 00057) RIVANNA MAGISTERIAL DISTRICT - ALBEMARLE COUNTY, VIRGINIA 7- _ I.F. PP 06 WM o PROJECT AREA = 29,880 SF ♦ -7— + N 27`34'021 E Lo o ♦ \ r PP__ , /\ o, O256.84 °Q F�U7 FH ♦ y� 20_ SAN. SEW. ES --_ I PP LF. ♦ 5,\Q ♦ \ MT. -� SHEET INDEX TITLE SHEET COVER SHEET 1 EXISTING CONDITIONS & DEMOLITION PLAN 2 OVERALL GRADING PLAN 3 EROSION & SEDIMENT CONTROL PLAN AND DETAILS 4 EROSION & SEDIMENT CONTROL NARRATIVE AND DETAILS 5 STORMWATER MANAGEMENT PLAN 6 STORMWATER MANAGEMENT DETAILS 7 STORMWATER MANAGEMENT DETAILS 8 TOTAL SHEETS 8 ♦` 9 _- o \\ ♦ / ti Rp \ / Q I 6\ \ \ A/ / \\ \ s0- TMP 78-17A per` 0, 3pOO A Rp \ \ 9•, O0,H .01 \\ _ f 1 pp ESM1• 20 WAIER�INE `� L,\\/p� 5r. LOR #2 (SDP-1998-118) ADD LOADING DOCK & RAMP TO EXISTING \ \\ �SLj \� NE bN y�� HH U,SE LOR #1 (SDP-1998-118) / \ \ LOADING DOCK, RAMP, & ' ���\ ��� \ oMH � .----- ��1T �� CANOPY FOR ROSES N.F. `\ ?6 BUILDING 2 CURB / 0 !/ v /R 1 1 S 76'2045" E TMP 78-17G2 �� vv ��FR�/ vv �0- v�O 1 45.00' pO //�� LOR#3(SDP-1998-118) vv NFLvvv I OCR �\ ADD FIVE LIGHT POLESPP LF. / / AND FIXTURES 9q40 // �i/ H N�� N.F. `v I I w •-)coo (01 A/. / A / \ DI / DIO \ / q DI /80 A LOR #3 (SDP-1998-118) \ v�2. qp/ �� ADD FIVE LIGHT POLES MH \ 0 AND FIXTURES N.F. �Sg °MH \� P A6 \ \ D �• LOR #1 (SDP-1997-136) I X C8 F DECK FOR OUTDOOR \ p RESTAURANT SEATING \ . \ "_MOH Vul AD F \ \ ODI AN \ I.S. \\ c /r e \ \ LOR #2 (SDP-1997-136) INSTALLATION OF A \ \ \ \F\ MOBILE GENERATOR � ¢ MINORAMENDMENT '0 (SDP-2019-00061) \ ` O MH \ \� \ MODIFICATIONS TO LAZY \\ \ >F2 PARROT BLDG., PATIO AND PARKING LOT \ MHO NOTES: CONTRACTOR SHALL VERIFY LOCATION AND ELEVATION OF ALL UNDERGROUND UTILITIES SHOWN ON PLANS IN AREAS OF s 4 CONSTRUCTION PRIOR TO STARTING WORK. CONTACT ENGINEER `7 \'• \ \ \ �° °s IMMEDIATELY IF LOCATION OR ELEVATION IS DIFFERENT FROM so. THAT SHOWN ON THE PLANS, IF THERE APPEARS TO BE A \I� CONFLICT, AND UPON DISCOVERY OF ANY UTILITY NOT SHOWN ON THE PLANS. 'Yw_ THE CONTRACTOR MUST LOCATE ALL SURFACE AND SUB —SURFACE UTILITIES PRIOR TO ANY WORK ONSITE. ANY SIDEWALK AND/OR CURB DAMAGE IDENTIFIED IN THE SITE VICINITY DUE TO PROJECT CONSTRUCTION ACTIVITIES AS DETERMINED BY THE VDOT INSPECTOR SHALL BE REPAIRED AT THE CONTRACTOR'S EXPENSE. SIDEWALK WILL BE REPLACED AT THE DIRECTION OF THE VDOT INSPECTOR. ANY EXISTING SIDEWALK THAT IS CURRENTLY DAMAGED AND IN NEED OF REPAIR OR NOT IN COMPLIANCE WITH CURRENT STANDARDS SHOULD BE REPLACED AS PART OF THIS PROJECT AS WELL. IN ADDITION, ANY EXISTING CC-12S ALONG THE PERIMETER OF THE SITE SHOULD BE UPGRADED TO MEET CURRENT STANDARD IF NEEDED. ALL SIGNING AND PAVEMENT MARKINGS SHALL BE CONSISTENT WITH THE MUTCD. I 111( 11 = )0 II_ TMP 77-41 304 300 312 320 330 78-17A 350 3311 7TMP 368 372 376 380 ^ � 384 / \ PROJECT 78-17B / _� J78-171)6 —76-b7A1 /D5 78-17 — 240� 120 78-17 D4 140 78-17D3 160 TMP 78-17D/� AREA 588 594 596 5/570 98 1 TMP 78-17G2 536 540 400 532 520 4e�� 201 P` 504 420 VI MAP 78-17G4 GENERAL NOTES OWNER/DEVELOPER: (TMP 78-17D) PANTOPS SHOPPING CENTER, LLC ENGINEER: COLLINS ENGINEERING P.O. BOX 5526 200 GARRETT ST, SUITE K CHARLOTTESVILLE, VA 22905 CHARLOTTESVILLE, VA 22902 (434)293-3719 (TMP 78-17132) ROTGIN, CHARLES JR TR, SECOND AMENDED & RESTATED TRUST PO BOX 5526 CHARLOTTESVILLE, VA 22905 TAX MAP NO.: 07800-00-00-017DO(DB.2870 PG.643) - 12.07 AC & 07800-00-00-017G2(DB.3880 PG.673) - 5.51 AC TOTAL PROJECT AREA: 12.07 AC & 5.51 AC (TOTAL SITE AREA: 17.58 AC): PROJECT AREA = 29,880 SF (0.686 AC) ZONING: PLANNED DEVELOPMENT SHOPPING CENTER WITH FLOOD HAZARD OVERLAY DISTRICT, ENTRANCE CORRIDOR OVERLAY DISTRICT & PRESERVED & MANAGED SLOPES OVERLAY DISTRICT (ZMA1983-00002 - APPROVED BY BOS ON JUNE 15, 1983). SURVEY: SURVEY AND BOUNDARY PROVIDED BY MERIDIAN SURVEYING AND DESIGN IN FEBRUARY, 2021. TOPO VERIFIED BY COLLINS ENGINEERING IN MARCH 2O21. DATUM: NAD83, NAVD 88 EXISTING TERRAIN: OPEN GRASS FIELD ADJACENT TO SHOPPING CENTER BUILDING. EXISTING USE: 179,506 SQ. FT. SHOPPING CENTER PROPOSED: CAR WASH BUILDING FOR ENTERPRISE RENT -A -CAR AND FLEET PARKING LOT FOR ENTERPRISE RENT -A -CAR RENTAL CARS (31 PARKING SPACE PARKING LOT AREA) TOTAL AREA OF CARWASH BUILDING = 384 SQ. FT. COMMERCIAL AREA: TOTAL SQ. FT. OF COMMERCIAL AREA: 179,506 SF + 384 SF = 179,890 SF WATER SUPPLY PROTECTION AREA: NOT APPLICABLE WITH THIS SITE PLAN AMENDMENT WATERSHED / WATER RESOURCE AREA: RIVANNA RIVER DRAINAGE BASIN DENSITY: NOT APPLICABLE WITH THIS SITE PLAN AMENDMENT GREENWAY DEDICATION: NOT APPLICABLE WITH THIS SITE PLAN AMENDMENT BUILDING HEIGHTS: 1 STORY BUILDING (CAR WASH) - 16 FEET BUILDING HEIGHT SETBACKS: FRONT SETBACK: 10' MIN. & 30' MAX. FROM R/W OR EXTERIOR EDGE OF SIDEWALK SIDE & REAR SETBACK: NONE WHEN ABUTTING LOT IS ZONED COMMERCIAL OR INDUSTRIAL. BUILDING SEPARATION IN ACCORDANCE WITH THE CURRENT EDITION OF THE BLDG CODE. SUBDIVISION STREETS: CURB & GUTTER UTILITIES (WATER AND SEWER): COUNTY PUBLIC WATER AND SANITARY SEWER AGRICULTURAL/ FORESTAL DISTRICT: NONE LIGHTING: EXISTING LIGHTING TO REMAIN LANDSCAPING: SEE STIR PLAN AMENDMENT FOR PROPOSED LANDSCAPING WITHIN PROJECT AREA TRASH RECEPTACLES: DUMPSTER SHALL BE RELOCATED TO NEW DUMPSTER PAD PHASING: THIS SITE SHALL BE DEVELOPED IN ONE PHASE. PARKING: NO CHANGE TO THE OVERALL PARKING - 31 FLEET PARKING SPACES ADDED SPECIFICALLY FOR THE USE OF ENTERPRISE RENT -A -CAR. THESE SPACES WILL NOT BE AVAILABLE FOR PUBLIC PARKING. STREAM BUFFERS/FLOODPLAIN: NOT APPLICABLE WITH THIS SITE PLAN AMENDMENT RETAINING WALLS: A CONCRETE RETAINING WALL IS PROPOSED. MAXIMUM HEIGHT OF THE RETAINING WALL IS 3' TO WIN HEIGHT WITH A 36" HIGH GUARD AND 6" RAIL FOR A 42" GUARDRAIL ALONG WALL. SEE SHEET 6 FOR DETAILS ON THE CONCRETE RETAINING WALL EXISTING PROPOSED(TOTAL) LAND AREA: IMPERVIOUS AREAS (WITHIN PROJECT LIMITS): 4,120 SF (13.8%) 19,130 SF (64.0%) PERVIOUS AREAS (GRASS ISLAND / OPEN SPACES): 25,760 SF (86.2%) 10,750 SF (36.0%) (TOTAL PROJECT AREA: 29,880 SQ.FT.) IMPERVIOUS AREAS (WITHIN LIMITS OF DISTURBANCE): EXISTING PROPOSED BUILDING/SIDEWALK/PATIO: 1,262 SF 3,202 SF PARKING & CIRCULATION: 2,858 SF 11,808 SF TOTAL: 4,120 SF 15,010 SF PAVED PARKING AND CIRCULATION AREA: 14,666 SF CRITICAL SLOPES: PRESERVED SLOPES ARE WITHIN THE LIMITS OF THE PROJECT AREA, SEE SHEET 2 FOR SLOPE ANALYSIS. BURIAL SITES: NO CEMETERIES WERE FOUND DURING FIELD INVESTIGATION OF THE SITE WITHIN THE LIMITS OF THE PROJECT AREA. STORMWATER MANAGEMENT: UNDERGROUND DETENTION FACILITY PROPOSED FOR WATER QUANTITY & NUTRIENT CREDITS WILL BE PURCHASED FOR THE REQUIRED WATER QUALITY. PARKING CALCULATIONS: PARKING REQUIRED: 851 SPACES EXISTING PARKING: 963 SPACES TOTAL EXCESS PARKING: 112 SPACES 31 PARKING SPACES FOR RENTAL CARS ONLY PROPOSED WITH THIS APPLICATION. THIS WILL NOT INCREASE THE OVERALL PARKING SPACES FOR THE PROJECT. SCOTT/R. C'>9•LLINS_� ti Lic. No. 035791 P 03/03/22 w� �i. __IONAL V:3— w W (r) 0 Of o Q Zz�(2D a n O U O 0 U W O u U 78-17G W J w Q z ~ C 100 o z o a o> W w l Q o Of W 00 m O N O + + o LkJ Z cy' M Ch N M Z_W J J > U) ZW J 0fN~�/ JQ O O N Lu-m w w � x JOB NO.� 112066 SCALE AS NOTED SHEET NO. 1 TMP 07800-00-00-017A g� / N/F TIRESUM LLC ti5� / / �� / 20'SANITARY DB 4417 PG 283 C§ SEWER EASEMENT DB 2290 PG 421 (PLAT) / / / / �P�1 DB 792 PG 435 UP /i' N/F PANTOPS SHOPPING CENTER LLC TMP 07800-00-00-017D DB 2870 PG 643 DB 4692 PG 584 V W DB 1021 PG 41) 0 ((PLAT) // �iYISTIN E EXISTING PAVEMENTTO BE / M/ SAW CUT FOR UTILITY / TMP 78-17A ///// / / / / / // /% INSTALLATION. _ /ro //( ///�// S £ M / 20'WATERLINE /ice////�/i//� //// �� /// // / �� FDC / / // / j o� - 1 EASEMENT / y / /� // /// �// /i / // / // / ' DB PG 435 �/, / / / �i i // EXISTING CONCRETE /0 2 �y CURB TO BE REMOVED / /,/ // /i / // GM Z EXISTING CONCRETE ® i// / / // ' w i STAIRS AND LANDING //j// / z // /00 TO BE REMOVED // // i%i/ /' / / / / / oXISTING / // / /� / w LOCK / -Al ° / 7/° v PUILDING jp- „ / ° EXISTING AV MARLE / /%j / �0 COUNTY P$SERVED SLOPES / / / / / / // / / / o-FFI .9°/j / EXISTING H DGES TO BE RE OVED / / 0 22 552 40 v45• 1 SCOTT/R. CtTLLINS'Z Lic. No. 035791,E a 12/06/21 ,0) Ln H z w V/ f 0 V O C7 O w U uuu W U U-) (^ z o FOf z p p `H7 .. Q > o W Lu ce j Of ILI / £ i • Q O O INV. p C / M CD N OUT=338.0 4 0 / FFE X NEpGES _-FAsTir G PAVEME TTO BE M� 355 84 6 CUR SAW CUT FOR UTILI4fY M� �8,3 V INSTALLATION. 1Ism 100 4 // / �55 MB MAILBOXES �X. EXISTING STRUCTURE & CUR E, �o, / / ® // CONCRETE SIDEWALK / / O / / TO RELOCATED z 9.6% / / TO BE DEMOLISHED SEE SHEET EWSTING / /cyi SIDEWALK TO CURB / / T REMAIN / / CN BENCHMARK - TOP / / j OFSDMH / / co TMP 07700-00-00-04100 /// / /// / %/ // /�// //�/ % 51.2% , � / / / TOP=3S4-39 / F / 11 �i COUNTY OF ALBEMARLE/ / j // // //// /�// / // / /�/ V/ / / i8" RCP / /CN DB 2372, PG.580 , /j // �//�� p 9 34 9 3 9 / / w O / // / / / //� / 6 (/ / i EXISTING 18" RCP STORJGI OUT= 8.6 BENCHMARK SEWER N66UTFAL � / N- 8 / pD � Z ° / y ` EXISTING z3.z/o i PIP i E-ii 8> 6 / w R VED 494 7-4 / N Q TRAVELWAY PARKING SIGNS ELEV-35S•oo / N J /,® " / � 1ISfING PAM / / / � � / � � �� OX) DES - w / 0/// / 1-3% / BREAC INUNDATION 0-1 // INGACSA / / / // '/ // ®/ / i / / 20NE� / / /�ATERLINE / ' �z1% / v\ _0 // I \ HANDICAP / / J / / iJ / 0/a / / / / `flp o PARKING SIGNS / / -J 0 58 / EXISTING THE �INE y�yo� /// /� / / / / / s (4X) / J U) O 2 % / i w EXISTING PORTION OF // // L9 W EXISTING >ooYR SIDEWALK AND CURB! G / /1//� //i/ �/ i j FLOODPLAIN/ // / ///// jdo / // / BE DEMOLISHED // ��/ O Lu // EXISTING FIRE U OO o / i / BUSSTOP / HYDRAN ` Q cil W 2 % i / v/ SIGN / / FH /_ z /// oci�"'// 2D 19' � i 4U zo' WATERLINE / / VJ 178 / / LL) 552° �� EASEMENT Z D679zPG435 PROJECT LIMITS V� 29,88o SF / w (o.686ACRES) / / Lu 0 EXISTING l/1 / BLOCK U) O W BUILDING / / /�7� EXISTING OVERHEAD / / / <Jk Lll I i POWER LINE F d. TMP 07800-00-00-017G2 _ N/F CHARLES ROTGIN JR F ' DB 3880 PIG 673 1 DB 021 PG 4 0 (PLAT) 1 0 o N 1 i W H 1 W O w JOB NO. GRAPHIC SCALE 1 112066 20 0 10 20 40 80 i SCALE W I 1=20� I N.F. w ( IN FEET ) w �1_ SHEET NO. I 1 inch =. 20 ft. 1 2 i u ' TMP 07800-00-00-017A PROPOSED RIPRAP N/F TIRESUM LLC OUTFALL: L=12', W1=3-75, W2=9' / AREAS WITH SLOPE GREATER THAN 3:1. AREA TO DB 4417 PG 283 D=�.5. BE PLANTED WITH ILEX CORNUTA'DWARF BUFORDDB 2290 PG 421(PLAT) WITH GEO-FABRIC SHRUBS FOR STABILIZATION ON A 6'x6' GRID. UNDERLAYMENTUP FIELD VERIFIED PRESERVED SLOPES (SLOPES GREATER THAN 25%) 20' SANITARY SEWER EASEMENT DB 792 PG 435 ALBEMARLE COUNTY PRESERVED SLOPES THAT DO /, /�j , / // ® �� / / M /Yw/ N/F PANTOPS SHOPPING CENTER LLC NOT MEET THE REQUIREMENT (LESS THAN 25% I / / ' ® �j / / TMP 07800-00-00-017D SLOPE) - CLASSIFIED AS MANAGED SLOPES EX. -� / //� /�i / ' 1 DB 2870 PG 643 / FLOODPLAIN 1 IN 0 - ✓ /� / DB 4692 PG 584 (PLAT) ELEV.=S4o' // - 1 V DB 1021 PG 410 (PLAT) 9 40.0 SCOTT/R. Cl!•LLIN' Lie. No. 035791 03/03/22 / / O FH P 78-17A ////// //x o PROPOSED / r✓ // // // // / / . GUARDRAIL M ///'' /�✓i /'�// j /� /// // / /�j // / O z , � LU �i © _ 20' WATERLINE i COiA z 1 FDC EASEMENT / o a ioo'STREAM , PROPOSED TRAFFIC © T -3 4.00 _ £ DB792 PG435 ' / Z Z BUFFER , RATED CLEANOUT / / 1 .00 B /3 1.00 ' — EX. ROOF �°O z in TOP=3S2.90 pDOWNSPOUT � INV.=350 45 o Xp? O ou O M TO REMAIN Ln / W J Z co �2, EX. ROOF 1 ✓ V / z g DOWNSPOUTS TO / CONNECTTO 1 / ,s` ,✓ in '-" OPOSED 6" ADS > O > 5'-T HIGH MAX. CONCRETE 4 / / D N SYSTEM / A i LU owc -i RETAINING WALL W/ HANDRAIL. o /� _ EXISTING A V / / w z SEE THIS SHEET FOR DETAILS o /� BLOCK CONCRETE WALL TO EXTEND 36" 00 � % z CROSS- �$. � PR POSED 6" BUILDING � / V / �' � � � / ' 3 3 . ABOVE PAVEMENT FOR op/ / /j / SECTION C AD DRAIN PIPE 1 \ V ' ✓ � CONCRETE CURBING. 0 j / L=5 S=o.8% \ / TW=355.00 355.62 1 \ 13W=350.0 COi FFE \ i PROPOSED A ✓ CLEANOUT ✓✓ 1 / /// / FFE=352.50 TOP=353J p / / / � � � INV.=35o.00 i i EX. / FLOODPLAIN / / / / j �'•F / ' � / - �— ELEV= / 20' DRAINAGE N N N INV. / EASEMENT o �i / / / 'r `L � / / / /i," / �35 / 1 �M Q o 0 0 OUT=338.0 / DB. , PG. o / / / o / PROPOSED / i / CROSS B , — f o MC) 1714 EXISTING RIPRAP o �� '� SECTION B CUR 1 M OUTFALL- RIPRAP OVERGROWN / CO2 o GUARDRAI / /, PR0P©OSD / " / • AND SILTED UP. CONTRACTOR TO CLEANOUT / = IMPROVE RIPRAP OUTFALL TO / PROPOSED 8" T6P=35o.67 / / PROPOSED 6" / ALBEMARLE COUNTY PROPERTY °INV. 8. o ! rF MB ADS DRAIN PIPE FL9 F ADS DRAIN/PIPE 34 5 fD� LINE �' L=44', 5=1.14%0 o �� '✓ TW=355.00 / PROPOSED i8" L=32', S=i.o% CURB / BW=351.0 GRATE INLET / / O / TOP=352.67 F / -------- / INV.6 0- - -- STR-2 = 349 7 CURB CIO ° .� / � -- --- �� PROPOSED 8" M / / �" ' p// ADS DRAIN PIPE L=2i8', S=2.o% OF SDMH RK -TOP TMP 077QO-00 00-04100 4000'/ i // �i // /j o / / / / TOP=354 39 COUNTY OF ALBEMARLE / / / / i / ° '� i /{ ------y- ---- -, l 18" RCP // // z DB 2372 PG.580 // /� / OUT=348.69 BENCHMARK o // _��_ :: �� N-389 i / Q CROSS- \ R VED E 114948i7 46 / / O J / / / /° •' /SECTION ELEV- oo / / °O STR-7 ip i PARKING DES 355• / PROPOSED (4z) SHRUBS o �' � / / xQ / � / O / S STR- (ILEX CORN UTA'DWARFo BUFORD)TO BE PLAN_D /�/ / f % / �= /� ON A 6'x6' GRID OVER THEzaSLOPEAREAoi HANDICAP / / STABLIZATlO® /, / / •,• // / / �� PARKING SIGNS 017 LU X" 355 EX. FLOODPLAIN // ////' / / / �ST Q i / w ✓ / a ELEV.=538' // / / / ' 5 _> / M \ / �/ 350 / / / /// j/� % ®'O / // i / / / / / ✓' / / ► Bus STOP 345 // /% ///;//✓ / //'�''� �/ i// /// /// SIGN / 340 /�////�/ //' i/✓i/�'✓// X/ IV �/ 20'WATERLINE EASEMENT �� // '✓✓�'' ' �� DB792PG435 �� //i /� % �� ✓ j j/ i/ \ PROPOSED VARIABLE WIDTH PUBLIC SWM FACILITY & ACCESS EASEMENT DB. PG. � // //i✓/// � / / X. ROOF 355 EXISTING / DOWNSPOUT BLOCK / BUILDING / � / 350 345 TMP 07800-00-00-017G2 340 N/F CHARLES ROTGIN JR 1 DB 021 PG 4 0 (PLAT) 1 1 1 EX. ROOF � 1 DOWNSPOUT 1 1 11 1 1 GRAPHIC SCALE 1 355 i 1 20 0 10 20 40 80 1 /w/ 350 � � w ( IN FEET 1 inch - 20 it. 345 EX. ROOF w 1 DOWNSPOUT 340 i LIMITS OF MANAGED SLOPES 6' 3' PROPOSED J GRADE EX. GRADE LIMITS OF PRESERVED SLOPES J J � 6" HIGH TUBE 355 RAIL ALONG �+ > � Z CONCRETE WALL w Q J 350 L9 z a- d U 345 z Z o CID Q Q 340 2 (D Q 0+00 0+10 0+20 0+30 0+40 0+50 PROCROSS-SECTION A 10" CNI WALL 0 Z d Q W LIMITS OF PROPOSED GROUND ELEV. O > MANAGED SLOPES (N W W ao PROPOSED a W_j WALL In GRADE J a 1 2' _ EX. GRAD / y CO #57 STONE n BACKFILL 355 ,a #4 BARS @ 12" > (VERT) 350 #4 @ 10" " (HORIZ) 2" CLR 345 #4 BARS @ 12" (DOWELS) lz 340 GUM u' I 0+00 0+10 0+20 0+30 0+40 0+50 #4 BARS @ 12" co CROSS-SECTION B Z 2° cL #4 BARS @ 12" Ln _ o- N J (7)-#4 BARS o LIMITS OF U o CONT O o> 3' MANAGED SLOPES N L` V) W w W o- PROPOSED Da o GRADE PROPOSED J WALL d 2.5' — EX. GRADE 12.5 O d I a 355 J 3" 350 CLR ;v, '-1" 10" 2'-1" 345 3" CLR 3'-0" 340 CONCRETE WALL SECTION 0+00 0+10 0+20 0+30 0+40 0+50 CROSS-SECTION C N.T.S LU J Ul U O ; LU O LU ~ O w z a- J < O O C) N U F- a U=i JOB NO. 112066 SCALE 1 11 =20 1 SHEET NO. 3 IMENT EROSION CONTROL HANDBIOOKOSPECIFRCA�ONNUMBERTROL AREAS ITHILE CORNU A'DGREATERRFBUF RD' AREA TO BE PLANTED PHASE I ESC PLAN: SCALE 1"=30' *IM WITH ILEX CORNUTA'DWARF BUFORD' SHRUBS FOR % SA - o SAFETYFENCE 3.01 STABILIZATION ON A 6'x6'GRID. / GRAPHIC SCALE PHASE II ESC PLAN: SCALE 1"= 0' 3 Z,TH OF �1� / L=12', W1=3-75', CE CONSTRUCTION ENTRANCE 3.02 ❑ FIELD VERIFIED PRESERVED SLOPES (SLOPES TMP 07800-00-00-017A W2=9', D=1.5 GREATER THANz5%) N/F TIRESUMLLC OP#3. WITHGEO-FABRIC OUNDERLAYMENT-SEE X 30 0 15 30 60 120 L=27', W1=3-75', W2=9' D=1.5' TMP 07800-00-OOL 017A 9k N/FTIRESUMLLC OP#3. WITH GEO-FABRIC 15G. F'� / OUNDERLAYMENT-SEE o� U' ✓' SCOTT R. LLINS'Z O �, �E SILT FENCE 3.05 REQUIREMENT /P STORMDRA/N/NLETPROTECT/ON 307 DB 4417 PG 283 DB2290PG421(PLAT) SHEETS �S ALBEMARLE COUNTY PRESERVED SLOPES THAT DO NOT MEET T E SP (LESS THAN 2 %SLOPE) -CLASSIFIED AS MAN ED / ' UP 7�� 5 ( IN FEET) 1 inch = 30 ft DB 4417 PG 283 F� DB 2290 PG 421 (PLAT) SHEETS � �S� SP UP0 yob ������� L� Lic. No. o� 03/03/22 035791,'n SLOPES IONAL IE DD �� TEMPORARYDIVERSIONDIKE 3.09 ® ® / TEMPORARY DIVERSION DIKE 'o' �j, i �o / ® TEMPORARYROWDIVERSION 3.11 I �,Ex. ��� NOTE, FILTREXX RUNOFF DIVERSION �,� ' / FLOODPLAIN- j E&S MEASURE TO BE UTILIZED FOR THE UTILITY WORK ACROSS THE / / ELEV.=540' ✓.. RR RIPRAP 3�19 EXISTING PAVED AREA / I I ® / � ® � PROPOSED ®��i/�� e°I' I Ex. NOTE, FILTREXX RUNOFF DIVERSION ^. E&S MEASURE TO BE UTILIZED FOR ' FLOODPLAIN THE UTILITY WORK ACROSS THE /; ELEV: 540' EXISTING PAVED AREA / I ® �� , Compacted Soil PROPOSED IS TS TEMPORARVSEED/NG 1 3.3 PS PS PERMANENTSEEDING � PROPOSED LIMITS OF P78_�7A�/ ��� 10 �/� (VERSION, SEE F /� / / DIVERSION, SEE DISTURBANCE 0.59 ac. / / �� �� DETAIL -SHEETS �j 18" min .-Flow PROPOSED LIMITS OF DISTURBANCE (0.59 ac. / FILTREXX RUNOFF MPyy �� ® DIVERSION, SEE //�� %- /�j DETAIL -SHEETS 332 SOIL TYPE �` �} GILT PE 1C_ T MU MU MULCHING 3.35 BOUNDARY(TYPJ / ® + /// �� IIIImilliHNNIIII�' - I /% / /� ee.ROOF / Ln TP A TREE PROTECT/ON q'g8 �/� lOg�UFFER M j / � ��� ���� 4.5' min. 100' STREAM BUFFER / p -// c /!,�,a l2 ,.. ew=3 s.Do O0 NSPouT , � / '� ® / ti To EMAIN /w z Z w Lu w of OC DC DUSTCONTROL 3.39 ��� �� / �� �� / �0 az EX.ROOF z /� 0 DOWNSPCTTO w I CONNECTTO OPOSED z Z O 0 V 7 C EXISTING X OCR BUILDING / / % /////., ������� TEEM pD p D NSVS..A p /do / / Z LOCK J ® /� �UILDING O F E Z . Z O H K ��� �� �� I / 1 / / I ® P uu Ul w 0 Q U) UI w Z NOTE: SILT FENCE, SAFETY / // �//�/ /�� / 355.62 NOTE: SILT FENCE, SAFETY / /�//�� ' ® / i TW=35s0G "_ 355.6z BW=350,0 moo_ �1 z P, p 0. FENCE, AND TREE PROTECTION SHALL BE INSTALLED AT LIMITS OF DISTURBANCE. THSE ARE FFE �� �� / ( TP ® �/ F�OODPLAIN p� '�� DC � � ELEV =539' / FENCE, AND TREE PROTECTION SHALL BE INSTALLED AT LIMITS OF DISTURBANCE. THSE ARE p TP /� ®® F OODPLAIN ®® /, - � �/ ELEV.-539' FFE +��` % ' /'� � � O j Of Z ,• 0 a 0 1-- W d � a OFFSET FOR GRAPHICAL � PURPOSES. �� J/ �,} - i� ®® - - OFFSET FOR GRAPHICAL PURPOSES o / - 1 ®° IP ` / Z U- LU W1=5, W2-1/k, OUT=338.0 L=z6', D=z' � ® asses FFE - - - 1 ® ass 4 � W1=5 T W2=Ilk I .0 L=z6', D=z OUT=338 p hi%F 3ss� N\ ADDITIONAL RIPRAP ADDED TO THE� ® ® ��'' / ADDITIONAL RIPRAP ADDEDTOTHE i EXISTING EXISTING RIPRAP ALBEMARLE OUTFALL '' ® B ®® PROPOSED TEMPORARYSTOCKPILE EXISTING EXISTING RIPRAP ALBEMARLE OUTFALL Tw 35s.DC COUNTY �� PRESERVED SLOPES / �� SURROUNDED BY SILT FENCE � M�� ®®® y BENCHMARK -TOP COUNTY I PRESERVED SLOPES / �. JJ TMP 077V0-00-00-04100 / ''/ COUN�kyY OF ALBEMARLE / / DB 2 72, PG.580 / / Sr / // ® / o OFSDMH ® c TOP=354d9 / ® > IP a6" RCP / // i .. "' OUT=348.69 BENCHMARK / 9 S ILTYPE B� N-38g E- i 8i 6 / JJ TMP077V0-00-00-04100__-- COUM�}}yy OF ALBEMARLE PROPOSED (42) SHRUBS DB 72, (ILEX CORNUTA DWARF SF o BUFORD) TO BE PLANTED ® -- --' __ w N � N � N � . � / / t .... R VED ELEV 355.o0 � W/WIRE ®® /� / �XRKINGSIGNS / / a6 DES - SUPPORT / - WASH RACK IN- CESHALL E - ON A6 z6 GRID OVER THE21SLOPEAREA / / W/ WIRE ® FOR STABLIZATION o SUPPO®T��� / / // .'..'.' / ' / PS IP ; WASH RACK _ .�. 1 w I ,_ o; .... / w - L - IN• CE�HAL N HE - Q O O O N O M o SU JECT ® �i, I PROPERTY, TYP. / ®®' / ® / o H AN TH / / �� / / CE 1ix7 ,'� 4IO��NTR TAINEpBY THIS IS d 5 ANpMAk9T I" FICIPIRANCE._ NOT ;TH OPERATED, STRUCTIO NENT UCT10 SU ]ECT i _ / y2x7G, ENTRA pBYT PROPERTY TYP. �' ��' CE ION TRINE �NTHIS -- tier �� �� p THISb 5 R AND MAIN TRAFFIC / � ��j goy ATED CTION ENTRANC / _ NOT OPER NSTRU UCI kv, E- / / / L9 / EX. FLOODPLAIN ON INSTALLED+ / A C CO ?R CONT �p� TOR'T L ZETHIS NS / DO LL h � �� / /�� / - f � p ST ALL ALL C.0 CONSTR � SH TOR T LRETHIS EXISTING ' ELEV=538' 100-YEAR FEMA FLOODPLAIN / / / AREA = ' SUSSTOP �� N CONTRACT OR STAGING AREA 3� EXISTING I 100-YEAR FEMA FLOODPLAIN ������� 4 ..� F AREA ��� CONTRACTOR STAGING AREA / �� r M M �� •, / �� , WITH FUELING TANK, DUMP ER, �� se' WITH FUELING TANK, DU TER, AND PORTA-POTTIES // DB 792 PG 435 ���� �� �// " � PS / 552°402� AND PORTA-POTTIES D079z PG 435 � SAF CC)� J CONCRETE WASH OUT AREA /�/�/ / CONCRETE WASH OUT AREA NO / X. ROOF / W � � W EXISTING BLOCK BUILDING / / / DOWNSPOUT EXISTING BLOCK BUILDING / N N pp' LL Q DIVERSION DIKE TO SMALL SEDIMENT TRAPPING DEVICE FOR DIVERSION DIKE TO SMALL SEDIMENT TRAPPING DEVICE FOR W ¢G C Q / CONSTRUCTION ENTRANCE CONSTRUCTION ENTRANCE / / i Q 1 TMP 07800-00-00-017G2 N/F CHARLES ROTGIN JR DB 3880 PG 673 1 TMP 07800-00-00-017G2 N/F CHARLES ROTGIN JR DB 3880 PG 673 / 1 I 1 W \ / 7 L DB 1021 PG 410 (PLAT) / DB 1021 PG 410 (PLAT) / Q ry SIEMENS \J / U) ct� 0- ul � W � J o 1'aA4d tmistrUdtion enhance forrro%ion control plans 1992 3.05 1992 3.38 1992 3.01 1992 3.07 1992 3.07 v Z O Q w U (�I Z O V STONL 70' WIN. ACCESS ' SSM-2A ASPHALT 'TOP- CONSTRUCTION OF A SILT FENCE (WITH WIRE SUPPORT) FENCING AND ARMORING SAFETY FENCE GRAVEL CURB INLET SEDIMENT FILTER SILT FENCE DROP INLET PROTECTIONU COURSE k ' zz 77C PAr ., .� 1. SET POSTS AND EXCAVATE A ALINE 2. STAPLE WIRE FENCING TO THE POSTS. TRENCH UPSLOPE ALONG THE LINE OF POSTS �\ _-� 2 % 4' WOOD FRAME DROP INLET WITH GRATE 1 � z �I W MIN ... p .� ■L■ ® `� 6" MAN. 21A AGGREGATE BASE I,f'�IL�I III'' II1ry J ��■ ■■� .■. ,■. \ / 1.3' MAX.FRAME �� w Ll DIFIVFi _/j„ I l DRIP LINE I �- '�/� W 70' MIN. -1MIN. I ��� � _ " (.!) Ln STONE CONSTRUCTION( ASPHALT PAVED ACCESS A wASWNACI( ^ _ I ��II �� I IIII i� _ 1 �� /J / � _ -I- I SNOW FENCE I :. / / / \ .-•.� EGATHERXCESS I. I �l ATCCDRNERS 111 1 IW1 LLI //�� V / % L EXISTING !«FF��/ I 2% PAVEMENT �2% 12' INN• - - FLOW I�"' I"' i - III ° 00 PERSPECTIVE VIEWS 111111111� � - � POSIT'VE DRAINAGE 'MUST EXTEND FULL WIDTH A To SEDIMENT OF INGRESS AND EGRESS i OPERATION TRAPPING DEVICE 3. ATTACH THE FILTER FABRIC TO THE WIRE 4. BACKFILL AND COMPACT THE FENCE AND EXTEND IT INTO THE TRENCH. EXCAVATED SOIL. � BOARD FENCE M'i rll MM coRo FENCE PLASTIC FENCE GRAVEL FILTER 1Y RUNOFF WATER WIRE MESH FILTERED WATER :o , e 4 • .' �'~. STAKE FABRIC , (- ILL] L.1.. Q O�' Ln O PERSPECTIVE VIEW .'sikx '' PrS PLAN a _ � �> �'' "'° ¢•� W j CORRECT METHODS OF TREE FENCING <� _` - - - - - II �innini V l7� VIV aOSIIIVL DNAN?TO SEDIMENT I� ;IRAPPING DEVICI _i IIII - � � � , IIII r �/ , L �1 �1`� II''" - .: -, o '..' �Y".. SEDIMENT 11111 ELEVATION OF STAKE AND N FLOW I= CONCRE E GU ER ;2" CURB INLET FABRIC ORIENTATION DETAIL A FILTER CLOTW I11 I. f-n \ I U SECTION A -A :\ IIWWIIIBII N.110 Tap UI j Oltih 11lIL'I TIC al: LUIIYI N1I11 B IIDIWIIIaII I Olfh I+a0d+n 1, •1lolott %.Ill a qI I IKLIY a wadi 11oxe %till) a thllllelel Of I ° Indic: tol adc ❑ale II _ I L owlalll Hess the \Cash wales IIRINI Ile Lamed awa,% houi the en11a1Re to all l .7pI/1 M'etl Setihll'"_ :R ea In I eullA a ,ellDnelli --111 Kella11W11 shall be pl et'gltell holll =IIIPj EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. ER FABRIC '. _ M / •rw YI CORRECT TRUNK ARMORING u.,ro,RE I°.x ".m 5' ^X n a w 5' MIe. rvi O n �' M LJI�m «� ° uE .oa SPECIFIC APPLICATION THIS METHOD OF INLET PROTECTION [S APPLICABLE AT CURB INLETS WHERE PONDING IN FRONT OF THE STRUCTURE IS NOT LIKELY TO CAUSE INCONVENIENCE OR DAMAGE TO ADJACENT STRUCTURES AND UNPROTECTED AREAS. SPECIFIC APPLICATION THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE THE INLET DRAINS A RELATIVELY FLAT AREA (SLOPE NO GREATER THAN 5%) WHERE THE INLET SHEET OR OVERLAND FLOWS (NOT EXCEEDING t C.F.S.) ARE TYPICAL. THE METHOD SHALL NOT APPLY TO INLETS RECEIVING CONCENTRATED FLOWS, SUCH AS LU wLu O a w PERSPECTIVE VIEW PERSPECTIVE VIEW JOB NO. 112066 eufatugstolm thaws. cldches of Tdatacoluses. WIRE]( I III lliilJ- ' ,,, 00 TRIANGULAR BOARD FENCE PLASTIC FENCE METAL FENCE + GRAVEL SHALL BE VDOT #3, #357 OR 5 COARSE AGGREGATE. IN STREET OR HIGHWAY MEDIANS. PAVED WASH RACK _ Source: Source: Adapted from Installation of Straw and Fabric Filter Barriers for Sediment Control, Sherwood and Wyant Plate 3.05-1 Source: Va. DSWC Plate 3.38-2 Source: Adapted from Conwed Plastics and Plate 3.01-1 VDOT Road and Bridge Standards Source: Va. DSWC Plate 3.07-6 N.C. Erosion and Sediment Control Planning and Design Manual, 1988 Plate 3.07-1 SCALE 111=30' SHEET NO. 4 EROSION & SEDIMENT CONTROL MEASURES: STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. STRUCTURAL PRACTICES USED IN THIS SECTION CONSIST OF THE FOLLOWING: 3.01 SAFETY FENCE: A PR07ECTIVE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE. TO PROHIBIT 774E UNDESIRABLE USE OF AN EROSION CONTROL MEASURE BY 774E PUBLIC. APPLICABLE TO ANY CONTROL MEASURE OR SERIES OF MEASURES WHICH CAN BE CONSIDERED UNSAFE BY VIRTUE OF P07EN77AL ACCESS BY 774E PUBLIC. 3.02 CONSTRUCTION ENTRANCE. A STABILIZED PAVED CONSTRUC77ON ENTRANCE WITH A WASH RACK LOCATED AT POINTS OF VEHICULAR INGRESS AND EGRESS ON A CONSTRUC77ON SITE. TO REDUCE 774E AMOUNT OF MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. CONSTRUC77ON ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE 774E AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ROADWAYS. 3.05 SILT FENCE, A TEMPORARY SEDIMENT BARRIER CONSIS77NG OF A SYN774ETIC FILTER FABRIC STRETCHED ACROSS AND ATTACHED TO SUPPOR77NG POSTS AND ENTRENCHED, TO INTERCEPT AND DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUC77ON OPERATIONS IN ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE, AND TO DECREASE 774E VELOCITY OF SHEET FLOWS AND LOW -TO -MODERATE LEVEL CHANNEL FLOWS. THE SILT FENCE BARRIERS SHALL BE INSTALLED DOWN SLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT LADEN RUNOFF FROM SHEET FLOW AS INDICATED. 774EY SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED IN ACCORDANCE WITH 774E VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH). 3.07 STORM DRAIN INLET PROTECTION: A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM DRAIN DROP INLET OR CURB INLET. TO PREVENT SEDIMENT FROM ENTERING STORM DRAINAGE SYSTEMS PRIOR TO PERMANENT STAB/LIZAT70N OF THE DISTURBED AREA. INLET PR07ECTION APPLIES WHERE STORM DRAIN INLETS ARE TO BE MADE OPERAT70NAL BEFORE PERMANENT STABILIZATION OF THE CORRESPONDING DISTURBED DRAINAGE AREA. 3.08 CULVERT INLET PROTEC770N: A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM CULVERT. TO PREVENT SEDIMENT FROM ENTERING STORM CULVERTS PR/OR TO PERMANENT STABILIZA7ON OF THE DISTURBED AREA. INLET PR07ECT70N APPLIES WHERE STORM CULVERTS ARE EXIS77NG OR TO BE MADE OPERA77ONAL BEFORE PERMANENT STABILIZA7ON OF 774E CORRESPONDING DRAINAGE AREA. 3.09 TEMPORARY DIVERSION DIKE: A TEMPORARY RIDGE OF COMPACTED SOIL CONSTRUCTED AT 774E TOP OR BASE OF A SLOPING DISTURBED AREA. TO DIVERT STORM RUNOFF FROM UPSLOPE DRAINAGE AREAS AWAY FROM UNPR07ECTED DISTURBED AREAS AND SLOPES TO A STABILIZED OUTLET TO DIVERT SEDIMENT -LADEN RUNOFF FROM A DISTURBED AREA TO A SEDIMENT -TRAPPING FACILITY SUCH AS A SEDIMENT TRAP OR SEDIMENT BASIN. USE WHEREVER STORMWAIER RUNOFF MUST BE TEMPORARILY DIVERTED TO PROTECT DISTURBED AREAS AND SLOPES OR RETAIN SEDIMENT ON SITE DURING CONSTRUCTION. THESE S7RUC77JRES GENERALLY HAVE A LIFE EXPECTANCY OF 18 MONTHS OR LESS, WHICH CAN BE PROLONGED WITH PROPER MAINTENANCE. 3.12 DIVERSION: A CHANNEL CONSTRUCTED ACROSS A SLOPE WITH A SUPPORTING EARTHEN RIDGE ON THE LOWER SIDE. TO REDUCE SLOPE LENGTH AND TO INTERCEPT AND DIVERT STORMWATER RUNOFF TO STABILIZED OUTLETS AT NON -EROSIVE VELOCITIES. APPLIES WHERE RUNOFF FROM AREAS OF HIGHER ELEVA77ON MAY DAMAGE PROPERTY, CAUSE EROSION, OR INTERFERE WITH THE ESTABLISHMENT OF VEGETA77ON ON LOWER AREAS, WHERE SURFACE AND/OR SHALLOW SUBSURFACE FLOW /S DAMAGING SLOPING UPLAND, AND WHERE THE SLOPE LENGTH NEEDS TO BE REDUCED TO MINIMIZE SOIL LOSS. 3.19 RIPRAP: A PERMANENT, EROSION -RESISTANT GROUND COVER OF LARGE, LOOSE, ANGULAR STONE WITH FILTER FABRIC OR GRANULAR UNDERLINING. TO PROTECT THE SOIL FROM THE EROSIVE FORCES OF CONCENTRATED RUNOFF, SLOW THE VELOCITY OF CONCENTRATED RUNOFF WHILE ENHANCING THE P07EN77AL FOR INFILTRATION, AND TO STABILIZE SLOPES WITH SEEPAGE PROBLEMS, AND/OR NON -COHESIVE SOILS. USE WHEREVER SOIL AND WATER INTERFACE AND THE SOIL CONDITIONS, WATER TURBULENCE AND VELOCITY, EXPECTED VEGETA7VE COVER, ETC., ARE SUCH THAT THE SOIL MAY ERODE UNDER THE DESIGN FLOW CONDN70NS. 3.20 ROCK CHECK DAMS: SMALL TEMPORARY STONE DAMS CONSTRUCTED ACROSS A SWALE OR DRAINAGE DITCH. TO REDUCE THE VELOCITY OF CONCENTRATED STORMWATER FLOWS, THEREBY REDUCING EROSION OF THE SWALE OR DITCH. THIS PRACTICE ALSO TRAPS SEDIMENT GENERATED FROM ADJACENT AREAS OR THE DITCH ITSELF, MAINLY BY PONDING OF THE STORMWATER RUNOFF. THIS PRACTICE, UTILIZING A COMB/NAT70N OF STONE SIZES, /S LIMITED TO USE IN SMALL OPEN CHANNELS WHICH DRAIN 10 ACRES OR LESS. 3.31 TEMPORARY SEEDING THE ESTABLISHMENT OF A TEMPORARY VEGETATIVE COVER ON DISTURBED AREAS BY SEEDING WI7H APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE FOR A PER/OD OF MORE THAN 30 DAYS. TO REDUCE DAMAGE FROM SEDIMENT AND RUNOFF TO DOWNSTREAM OR OFF -SITE AREAS, AND TO PROVIDE PROTECTION TO BARE SOILS EXPOSED DURING CONS7RUC77ON UNTIL PERMANENT VEGETAT70N OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED. 3.32 PERMANENT STABILIZATION., THE ESTABLISHMENT OF PERENNIAL VEGETATIVE COVER ON DISTURBED AREAS BY PLANTING SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS. TO PERMANEN7LY STABILIZE DISTURBED AREAS /N A MANNER THAT /S ECONOMICAL, ADAPTABLE TO SITE CONDITIONS, AND ALLOWS SELECT/ON OF THE MOST APPROPRIATE PLANT MATERIALS. TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLET70N OF CONSTRUCTION ACTIVITIES, ALL AREAS WILL RECEIVE A PERMANENT VEGETATIVE COVER. 3.35 MULCHING., APPL/CAT70N OF PLANT RESIDUES OR OTHER SUITABLE MATERIALS TO THE SOIL SURFACE. TO PREVENT EROSION BY PR07EC77NG THE SOIL SURFACE FROM RAINDROP IMPACT AND REDUCING THE VELOCITY OF OVERLAND FLOW. TO FOSTER THE GROWTH OF VEGETA77ON BY INCREASING AVAILABLE MOISTURE AND PROVIDING INSULA77ON AGAINST EXTREME HEAT AND COLD. AREAS WHICH HAVE BEEN PERMANENTLY SEEDED SHOULD BE MULCHED IMMEDIATELY FOLLOWING SEEDING. AREAS WHICH CANNOT BE SEEDED BECAUSE OF THE SEASON SHOULD BE MULCHED USING ORGANIC MULCH. MULCH MAY BE USED TOGETHER WITH PLANTINGS OF TREES, SHRUBS, OR CERTAIN GROUND COVERS WHICH DO NOT PROVIDE ADEQUATE SOIL STABILIZAT70N BY THEMSELVES, CAN BE USED IN CONJUNC77ON WITH TEMPORARY SEEDING. 3.37 7REES. SHRUBS. VINES & GROUND COVERS. STABILIZING DISTURBED AREAS BY ESTABLISHING VEGETATIVE COVER WITH TREES, SHRUBS, VINES, OR GROUND COVERS TO AID IN STABILIZING SOIL IN AREAS WHERE VEGETA77ON OVER THAN TURF IS PREFERRED, TO PROVIDE FOOD AND SHELTER FOR WILDLIFE WHERE WILDLIFE HABITAT IS DESIRABLE. APPLIES IN AREAS WHERE TURF ESTABLISHMENT IS DIFFICULT, ON STEEP OR ROCKY SLOPES WHERE MOWING IS NOT FEASIBLE, WHERE ORNAMENTALS ARE DESIRABLE FOR LANDSCAPING PURPOSES, AND WHERE WOODY PLANTS ARE DESIRABLE FOR SOIL CONSERVARON, OR TO ESTABLISH WILDLIFE HABITAT. 3.36 BLANKET MATTING., INSTALLAT70N OF A PROTEC77VE COVERING OR A SOIL STABILIZA7ON MAT ON A PREPARED PLAN77NG AREA OF A STEEP SLOPE OR CHANNEL TO AID IN THE CONTROLLING EROSION ON CRI77CAL AREAS. 3.38 7REE PRESERVA77ON AND PROTECTION: PROTECT70N OF DESIRABLE 7REES FROM MECHANICAL OR OTHER INJURY DURING LAND DISTURBING AND CONSTRUC77ON ACTIVITY. TO ENSURE THE SURVIVAL OF DESIRABLE TREES WHERE THEY WILL BE EFFECTIVE FOR EROSION AND SEDIMENT CONTROL, WATERSHED PROTECTION, LANDSCAPE BEAUTIFICATION, DUST AND POLLUT70N CONTROL, NOISE REDUCTION, SHADE AND OTHER ENVIRONMENTAL BENEFITS WHILE THE LAND IS BEING CONVERTED FROM FOREST TO URBAN -TYPE USES. APPLIES IN TREE -INHABITED AREAS SUBJECT TO LAND DISTURBING AC77WTIES. 3.39 DUST CONTROL: REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOL177ON AND CONSTRUCTION ACTIVITIES. TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT HEALTH HAZARDS, TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE. DUST CONTROL MEASURES SHALL BE EMPLOYED TO PREVENT SURFACE AND AIR MOVEMENT OF DUST DURING CONS7RUCT70N. MEASURES EMPLOYED SHALL BE IN ACCORDANCE WITH THE VESCH. 1992 3.32 TABLE 3,32-D SITE SPECIFIC SEEDING MIXTURES FOR PIEDMONT AREA Total Lbs. minimum care Lawn - Commercial or Residential 175-200 lbs. - Kentucky 31 or Turf -Type Tall Fescue 95-100% - Improved Perennial Ryegrass 0-5% - Kentucky Bluegrass 0.5% Hieh-Maintenance Lawn 200-250lbs. - Kentucky 31 or Turf -Type Tall Fescue 100% General Slope (3:1 or less) - Kentucky 31 Fescue 128 lbs. - Red Top Grass 2 lbs. - Seasonal Nurse Crop" .20 lbs, 150 lbs. Low -Maintenance Slope (Steeper than 3-1l Kentucky 31 Fescue 108 III Red Top Grass 2 lbs. Seasonal Nurse Crop " 20 lbs. Crownvetch "" 20 lbs. 150 lbs. " Use seasonal nurse crop in accordance with seeding dates as stated below: February 16th through April ...................... Annual Rye May 1st through August 15th ..................... Foxtail Millet August 16th through October ...................... Annual Rye November through February 15th ................... Winter Rye "W Substitute Sericea lespedeza for Crownvetch east of Farmville, Va. (May through September use hulled Sericea, all other periods, use unhulled Sericea). If Flatpea is used in lieu of Crow ivetch, increase rate to 30 lbs./acre. All legume seed must be properly inoculated. Weeping Lovegrass may be added to any slope or low -maintenance mix during warmer seeding periods; add 10.20 lbs./acre in mixes. TABLE 331-A LIMING REQUIREMENTS FOR TEMPORARY SITES Recommended Application DH Test of Aariculnual Limestone below 4.2 3 tons per acre 4.2 to 5.2 2 tons per acre 52 to 6 1 ton per acre TABLE 3J1-B ACCEPTABLE TEMPORARY SEEDING I•LAML MATERIALS •QUICK RMFERENCE FOR ALL REGIONP Rate Mandan, Dan Scetles fibs .) Sept. 1 - Feb. 15 50/50 Mu of Annual Ryegma tLolium molt-onruml & 50 - POD Cereal (Winter) Rye iN ale ,rate) Feb. 16-Apr. 30 Annual Ryegrass 60-Im ful'mn mu1 l.Ronlm1 May 1- Aug 31 German Millet So tsm.ia iWita GENERAL SLOPE (3:1 OR LESS)_ TOTAL LBS PER ACRE KENTUCKY 31 FESCUE 128 LBS RED TOP GRASS 2 LBS SEASONAL NURSE CROP 20 LBS 150 LBS SEASONAL NURSE CROP FEBRUARY 16 THROUGH APRIL ANNUAL RYE MAY 1 THROUGH AUGUST 15 FOXTAIL MILLET AUGUST 16 THROUGH OCTOBER ANNUAL RYE NOVEMBER THROUGH FEBRUARY 15 WINTER RYE IIHIX. 1. LIME AND FERTILIZER NEEDS SHALL BE DETERMINED BY SOIL TESTS AND APPLIED IN ACCORDANCE WITH VESCH STD. 3.32. 2. SEEDINGS TO BE MULCHED IMMEDIATELY UPON COMPLETION OF SEED APPLICATION, IN ACCORDANCE W/ VESCH STD 3.35, PERMANENT SEEDING SCHEDULE PS \c'';"LE STD. & SPEC. 3.32 OF VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK, 3RD ED.) TEMPORARY SEEDING: ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR EXTENDED PERIODS OF TIME SHALL BE SEEDED WITH FAST GERMINATING TEMPORARY VEGETATION IMMEDIATELY FOLLOWING GRADING. SELECTION OF THE SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR AND WILL BE APPLIED TO DISTURBED ARES THAT WILL NOT BE BROUGHT TO FINAL GRADE WITHIN 3o DAYS. PLANTS SHOULD BE SELECTED APPROPRIATE TO THE SEASON AND SITE CONDITIONS FROM TABLES 3.31B AND 3.3iC. NOTE THATTABLE 3.3iB PRESENTS PLANTS WHICH CAN BE USED WITHOUT EXTENSIVE EVALUATION OF SITE CONDITIONS; TABLE 3.31C PRESENTS MORE IN-DEPTH INFORMATION ON THE PLANT MATERIALS. TO CONTROL EROSION ON BARE SOIL SURFACES, PLANTS MUST BE ABLE TO GERMINATE AND GROW. SEEDBED PREPARATION IS ESSENTIAL. AN EVALUATION SHOULD BE CONDUCTED TO DETERMINE IF LIME I5NECESSARY FOR TEMPORARY SEEDING. TABLE .IAMAY BEUSED TODETERMINE THE ACTUAL NEED ALONG WITH SUGGESTED APPLICATION RATES: 3 3 FERTILIZER SHALL BE APPLIED AS 5o0 LBS/ACRE OF 10-20-10 (24 LBS/i,000 SQ. FT.) OR EQUIVALENT NUTRIENTS. LIME AND FERTILIZER SHALL BE INCORPORATED INTO THE TOP 2 TO 4INCHES OF THE SOIL IF POSSIBLE. IF THE AREA HAS BEEN RECENTLY LOOSENED OR DISTURBED, NO FURTHER ROUGHENING IS REQUIRED. WHEN THE AREA IS COMPACTED, CRUSTED, OR HARDENED, THE SOIL SHALL BE LOOSENED BY DISCING, RAKING, HARROWING, OR OTHER ACCEPTABLE MEANS. TRACKING WITH BULLDOZER CLEATS IS MOST EFFECTIVE ON SANDY SOILS. THIS PRACTICE OFTEN CAUSES UNDUE COMPACTION OF THE SOIL SURFACE, ESPECIALLY IN CLAYEY SOILS, AND DOES NOT AID PLANT GROWTH AS EFFECTIVELYAS OTHER METHODS OF SURFACE ROUGHENING. SEED SHALL BE EVENLY APPLIED WITH A BROADCAST SEEDER, DRILL, CULTIPACKER SEEDER OR HYDROSEEDER. SMALL GRAINS SHALL BE PLANTED NO MORE THAN 3$ INCHES DEEP. SMALL SEEDS, SUCH AS KENTUCKY BLUEGRASS, SHOULD BE PLANTED NO MORE THAN1INCH DEEP. OTHER GRASSES AND LEGUMES SHOULD BE PLANTED FROM 4INCH TO DEEP. SEEDINGS MADE IN FALL FOR WINTER COVER AND DURING HOT AND DRY SUMMER MONTHS SHALL BE MULCHED ACCORDING TO MULCHING, STD. & SPEC .335, EXCEPT THAT HYDROMULCHES (FIBER MULCH) WILL NOT BE CONSIDERED ADEQUATE. STRAW MULCH SHOULD BE USED DURING THESE PERIODS. AREAS WHICH FAIL TO ESTABLISH VEGETATIVE COVER ADEQUATE TO PREVENT RILL EROSION WILL BE RE -SEEDED AS SOON AS SUCH AREAS ARE IDENTIFIED. EROSION CONTROL NOTES DESCRIPTION OF EROSION &R SEDIMENT EROSION CONTROL NOTES & NARRATIVE ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION CONTROL MEASURES: PURPOSE: TH ( AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED THE PURPOSE OF THIS LAND DISTURBING ACTIVITY IS TO GRADE THE SITE TO FOR A CAR WASH AND ASSOCIATED PARKING ACCORDING TO MINIMUM STANDARDS AND SPECIFICA77ONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL MEASURES: LOT. THE TOTAL AREA TO BE DISTURBED WITH THIS PLAN IS 0.59 ACRES. p EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULA77ONS VR IT IS ANTICIPATED TO USE CONSTRUCTION ENTRANCES, DIVERSION DIKES, EXISTING SEDIMENT BASINS, AND SILT FENCES WILL BE EXISTING SITE CONDITIONS: 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. INSTALLED TO CONTROL SURFACE DRAINAGE. TEMPORARY SEEDING WILL BE USED IMMEDIATELY FOLLOWING ALL LAND THIS SITE IS MAINLY A GRASSED AREA WITH WOODS AND SLOPES TO THE NORTHWEST. THE SITE IS LOCATED TO THE WEST OF SCOTT R. LLINSIZ ES-2: THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE DISTURBANCE ACTIVITIES. TEMPORARY STOCKPILE AREAS WILL BE MAINTAINED FROM TOPSOIL THAT WILL BE STRIPPED FROM PANTOPS SHOPPING CENTER PARKING LOT BY ENTERPRISE RENT -A -CAR. A PORTION OF THE SITE JUST NORTH OF O Z C-) Lic. No. 0357911' 1 PRE-CONSTRUC77ON CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT AREAS TO BE GRADED AND STORED FOR LATER SPREADING. STOCKPILE LOCATIONS SHALL BE ON SITE AND SHALL BE STABILIZED ENTERPRISE RENT -A -CAR IS CURRENTLY PAVED. THE MAJORITY OF THE SITE DRAINS DIRECTLY NORTHWEST TOWARDS THE OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL WITH A TEMPORARY VEGETATIVE COVER. PERMANENT SEEDING WILL BE PERFORMED FOR ALL AREAS WHICH WILL NO LONGER BE RIVANNA RIVER. "op 03/03/22 ,�J INSPECTION. ES-3: ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR EXCAVATED AND WHERE CONSTRUCTION ACTIVITIES HAVE CEASED. PERMANENT SEEDING SHALL ALSO BE PERFORMED FOR ALL ADJACENT AREAS: THIS SITE IS BORDERED TO THE NORTHWEST BY VACANT LAND ALONG THE RIVANNA RIVER, TO THE SOUTH BY EXISTING O. �g SIOIPAL TO OR AS THE FIRST STEP IN CLEARING. DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR A YEAR OR MORE. SELECTION OF SEED MIXTURE WILL DEPEND ON THE TIME COMMERCIAL BUILDING, TO THE EAST BY PANTOPS SHOPPING CENTER PARKING LOT, AND TO THE NORTH BY ETERPRISE ES-4: A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE OF YEAR APPLIED. RENT -A -CAR. MAINTAINED ON THE SITE AT ALL TIMES. TEMPORARY SEEDING WILL BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR MORE THAN SEVEN OFFSITE LAND DISTURBANCE: ES-5.-PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN DAYS. THESE AREAS SHALL BE SEEDED WITH FAST GERMINATING VEGETATION IMMEDIATELY FOLLOWING GRADING OF THOSE NO OFFSITE LAND DISTURBANCE IS PROPOSED WITH THIS PLAN. INDICATED ON THESE PLANS (INCLUDING BUT NOT LIMITED TO, OFF -SITE AREAS. SELECTION OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. CRITICAL AREAS: BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A CONSTRUCTION ENTRANCE: TREE PROTECTION FENCING AND SILT FENCE SHALL BE MAINTAINED ALONG THE NORTHWEST PROPERTY LINES AS SHOWN ON SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. A STABILIZED PAVED CONSTRUCTION ENTRANCE WITH A WASH RACK LOCATED AT POINTS OF VEHICULAR INGRESS AND EGRESS THE PLAN TO PROTECT THE ADJACENT PROPERTIES. CONTRACTOR SHALL ENSURE THAT ALL SEDIMENT MAINTENANCE ES-6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL ON A CONSTRUCTION SITE. TO REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES CONTROLS ARE ALON G THE PARKING LOT ENTRANCE TO ENSURE THAT NO SEDIMENT LEAVES THE SITE AND DRAINS ONTO THE EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND OR RUNOFF. ROADS. SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. CONSTRUCTION ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE THE AMOUNT SEDIMENT TRANSPORTED SOILS: ES-7.-ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL ONTO PUBLIC ROADWAYS. SOILS MAP IS INCORPORATED INTO EROSION CONTROL PLAN PHASE I WITH SOILS DATA INCLUDED WITH THIS NARRATIVE. MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SILT FENCE: SEQUENCE OF CONSTRUCTION: ES-8.-DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN A TEMPORARY SEDIMENT BARRIER CONSISTING OF A SYNTHETIC FILTER FABRIC STRETCHED ACROSS AND ATTACHED TO PHASE I: 1. NOTIFY ALBEMARLE COUNTY TO SCHEDULE A PRE -CONSTRUCTION MEETING AS REQUIRED. APPROVED WATER FILTERING DEVICE. SUPPORTING POSTS AND ENTRENCHED. TO INTERCEPT AND DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS 2. PRIOR TO DISTURBANCES, THE LIMITS OF DISTURBANCE SHALL BE FLAGGED AND THE TREE PROTECTION FENCING SHALL BE to z ES-9: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES DURING CONSTRUCTION OPERATIONS IN ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE. TO DECREASE THE VELOCITY OF INSTALLED. g Ln w PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT ANY SHEET FLOWS AND LOW -TO -MODERATE LEVEL CHANNEL FLOWS. THE SILT FENCE BARRIERS SHALL BE INSTALLED DOWN SLOPE 3. NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTION PROCESS WITHOUT THE APPROVAL FROM 'A f Oc NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT LADEN RUNOFF FROM SHEET FLOW AS INDICATED. THEY SHALL BE THE INSPECTOR ON THE PROJECT. Vl O v H EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED IN ACCORDANCE WITH THE VIRGINIA EROSION &SEDIMENT 4. THE PROPOSED CONSTRUCTION ENTRANCE WITH WASH AREAS SHALL BE INSTALLED AS SHOWN ON THE PLANS. THE Z z O U � CONTROL HANDBOOK (VESCH). CONSTRUCTION ENTRANCE TO BE INSTALLED WHERE CONSTRUCTION VEHICLE ROUTES INTERSECT PAVED PUBLIC ROADS, ? N General construction notes for Erosion and Sediment Control plans PERMANENT STABILIZATION: PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY (VEHICULAR) TRACKING ONTO THE PAVED O o! w O of o THE ESTABLISHMENT OF PERENNIAL VEGETATIVE COVER ON DISTURBED AREAS BY PLANING SEED. TO REDUCE EROSION AND SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PUBLIC ROAD SURFACE, THE ROAD SHALL BE CLEANED " w o THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING trail z 1. The plan approving authority must be notified one week prior to the pre -construction DECREASE SEDIMENT YIELD FROM DISTURBED AREAS. TO PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER THAT IS AND TRANSPORTING TO A SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY AFTER o z a LU 5 n. conference, one week prior to the commencement of land disturbing activity, and one week ECONOMICAL, ADAPTABLE TO SITE CONDITIONS, AND ALLOWS SELECTION OF THE MOST APPROPRIATE PLANT MATERIALS. TO SEDIMENT IS REMOVED IN THIS MANNER. H o Z z p prior to the final inspection. IMPROVE WLDUFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONSTRUCTION ACTIVITIES, ALL AREAS WILL 5. INSTALL THE INITIAL CONSTRUCTION MEASURES AS SHOWN ON THE PHASE I EROSION CONTROL SHEET. THIS INCLUDES in " o a o_ 2:2. All erosion and sediment control measures will be constructed and maintained according to RECEIVE A PERMANENT VEGETATIVE COVER. WIRE SILT FENCE AND INLET PROTECTION. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST w R minimum standards and specifications of the Virginia Erosion and Sediment Control TEMPORARY SEEDING: STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE ui of w a Handbook and Virginia Regulations VR 625-02-00 Erosion and Sediment Control THE ESTABLISHMENT OF A TEMPORARY VEGETATIVE COVER ON DISTURBED AREAS BY SEEDING WITH APPROPRIATE RAPIDLY TAKES PLACE. W to z Regulations. GROWING ANNUAL PLANTS. TO REDUCE EROSION AND SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE 6. ONCE ALL THE PHASE I EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE EROSION CONTROL PHASE I LU LL 3. All erosion and sediment control measures are to be placed prior to or as the first step in BROUGHT TO FINAL GRADE FOR A PERIOD OF MORE THAN 30 DAYS. TO REDUCE DAMAGE FROM SEDIMENT AND RUNOFF TO PLAN AND THE INSPECTOR HAS APPROVED THE EROSION CONTROL MEASURES, THE CONTRACTOR CAN BEGIN THE MINIMUM � clearing. DOWNSTREAM OR OFF -SITE AREAS, AND TO PROVIDE PROTECTION TO BARE SOILS EXPOSED DURING CONSTRUCTION UNTIL GRADING OPERATIONS AND BUILDING THE RETAINING WALL. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN 4. A co of the approved erosion and sediment control plan shall be maintained on the site at PY PP P STRUCTURES SUCH DAMS, DIKES, AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION. THE CONCRETE RETAINING WALL all times. PERMANENT VEGETATION OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED. SHALL BE CONSTRUCTED FIRST TO PROTECT THE DOWNSTREAM PRESERVED SLOPES. THE CONTRACTOR SHALL EXCAVATE 5. Prior to commencing land disturbing activities in areas other than indicated on these plans DUST CONTROL: ONLY WIDE ENOUGH TO INSTALL THE 3' FOOTER AND 10" WALL, AS SHOWN IN THE DETAIL ON SHEET 3. ONCE THE WALL (including, but not limited to, off -site borrow or waste areas), the contractor shall submit a REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLITION AND CONSTRUCTION ACTIVITIES. IS CONSTRUCTED, THE REMAINING PORTION OF THE SITE CAN BE GRADED PER THE PLAN. supplementary erosion control plan to the owner for review and approval b the plan PP Y P PP Y P TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUCE THE PRESENCE OF AIRBORNE 7. ONCE ROUGH GRADING IS COMPLETE, CONTRACTOR CAN BEGIN INSTALLING UTILITIES, ROAD/SIDEWALK CONSTRUCTION, AND approving authority. SUBSTANCES WHICH MAY PRESENT HEALTH HAZARDS, TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE. BUILDING THE CAR WASH BUILDING. INLET PROTECTION SHALL BE APPLIED TO INLETS AS THEY ARE BUILT AS SHOWN ON 6. The contractor is responsible for installation of any additional erosion control measures DUST CONTROL MEASURES SHALL BE EMPLOYED TO PREVENT SURFACE AND AIR MOVEMENT OF DUST DURING CONSTRUCTION. THE PLAN. necessary to prevent erosion and sedimentation as determined by the plan approving MEASURES EMPLOYED SHALL BE IN ACCORDANCE NTH THE VESCH. 8. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL authority. TEMPORARY DIVERSION DIKE: GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN 7. All disturbed areas are to drain to approved sediment control measures at all times during A RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA WHICH DIVERTS OFF -SITE DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER land disturbing activities and during site development until final stabilization is achieved. RUNOFF AWAY FROM UNPROTECTED SLOPES AND TO A STABILIZED OUTLET, OR TO DIVERT SEDIMENT -LADEN RUNOFF TO A THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE 8. During dewatering operations, water will be pumped into an approved filtering device. SEDIMENT TRAPPING STRUCTURE. MAXIMUM EFFECTIVE LIVE IS 18 MONTHS. THAN ONE YEAR. 9. The contractor shall inspect all erosion control measures periodically and after each runoff- ROCK CHECK DAMS: w rN C-J producing rainfall event. An necessary repairs or clean to maintain the effectiveness of P g Y SMALL, TEMPORARY STONE DAMS CONSTRUCTED ACROSS A DRAINAGE DITCH TO REDUCE THE VELOCITY OF CONCENTRATED PHASE II: ! o � CD so CD M CD the erosion control devices shall be made immediately. 9. ONCE THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL, THE CONTRACTOR CAN BEGIN REMOVAL OF o N m 1 FLOWS, REDUCING EROSION OF THE SWALE OR DITCH. LIMITED TO USE IN SMALL OPEN CHANNELS WHICH DRAIN 0 ACRES OR SEDIMENT TRAPPING MEASURE. NO ITEM SHALL BE REMOVED UNLESS THE UPSTREAM AREAS ARE STABILIZED AND THE 1 - C3 10. All fill material to be taken from an approved, designated borrow area. LESS; SHOULD NOT BE USED IN LIVE STREAMS. INSPECTOR GIVES PERMISSION. 11. All waste materials shall be taken to an approved waste area. Earth fill shall be inert STORM DRAIN INLET PROTECTION: 10. MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, materials only, free of roots, stumps, wood, rubbish, and other debris. THE INSTALLATION OF VARIOUS KINDS OF SEDIMENT TRAPPING MEASURES AROUND DROP INLETS OR CURB INLET STRUCTURES REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM ADMINISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION 12. Borrow or waste areas are to be reclaimed within 7 days of completion per Zoning PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA; LIMITED TO DRAINAGE AREAS NOT EXCEEDING ONE ACRE, AND AND SEDIMENT CONTROL HANDBOOK. L9 Ordinance section 5.1.28. NOT INTENDED TO CONTROL LARGE, CONCENTRATED STORMWATER FLOWS. 11. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE 13. All inert materials shall be transported in compliance with section 13-301 of the Code of TEMPORARY SEDIMENT TRAP: STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE Albemarle. A SMALL PONDING AREA, FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT WITH A STONE OUTLET ACROSS A DRAINAGE LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION 14. Borrow, fill or waste activity involving industrial -type power equipment shall be limited to SWALE, TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS FOR ENOUGH TIME TO ALLOW MOST TO THE OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. Z r ti the hours of 7:00am to 9:00pm. SUSPENDED SOLIDS TO SETTLE OUT. MAXIMUM EFFECTIVE LIFE IS 18 MONTHS. SOIL DESCRIPTION C'7 15. Borrow, fill or waste activity shall be conducted in a safe manner than maintains lateral TEMPORARY SEDIMENT BASIN: 7zC- RABUM CLAY LOAM-7%TO i5% SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON INTERFLUVES. MODERATE RUNOFF, WITH C'h support, or order to minimize any hazard to persons, physical damage to adjacent land and A TEMPORARY BARRIER OR DAM WITH CONTROLLED STORMWATER RELEASE STRUCTURES WHICH IS FORMED BY CONSTRUCTING AN MODERATELY HIGH TO HIGH PERMEABILITY. IRNIIIIIIIIIIIIIIIIIIIIIIIIN CT improvements, and damage to any public street because o slides, sinking, or collapse. EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. IT IS USED TO DETAIN SEDIMENT -LADEN RUNOFF FROM DRAINAGE 88- UDORTHENTS, LOAMY-2%TO 25%SLOPES. THESE DEEP SOILS ARE FOUND ON INTERFLUVES AND NEAR FLOODPLAINS. MODERATE N 16. The developer shall reserve the right to install, maintain, remove or convert to permanent AREAS 3 ACRES OR GREATER FOR ENOUGH TIME TO ALLOW MOST OF THE SUSPENDED SOLIDS TO SETTLE OUT. IT CAN BE RUNOFF, WITH LOW TO MODERATE PERMEABILITY. 4 stormwater management facilities where applicable all erosion control measures required CONSTRUCTED ONLY WHERE THERE IS SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY MAXIMUM EFFECTIVE LIFE IS 18 STORMWA TER RUN-OFF CONSIOERA TONS: 0! Ch by this plan regardless of the sale of any lot, unit, building or other portion of the property. MONTHS UNLESS DESIGNED AS A PERMANENT POND BY A QUALIFIED PROFESSIONAL. 17 17. Temporary stabilization shall be temporary seeding and mulching. Seeding is to be at 75 OUTLET PROTECTION: STORMWATER MANAGEMENT. THE STORMWATER RUNOFF FROM THIS PROJECT DRAINS TEMPORARILY TO lbslacre and in the months of September to February to consist a 50/50 mix of Annual p ary THE WIRE BACKED SILT FENCE. THE SILT FENCE WILL BE REMOVED AFTER THE DEVELOPMENT OF THE CAR N Ryegrass and Cereal Winter Rye, or in March and April to consist of Annual Rye, or May THE INSTALLATION OF RIPRAP CHANNEL SECTIONS AND/OR STILLING BASINS BELOW STORM DRAIN OUTLETS TO REDUCE EROSION WASH PROJECT O through August to consist of German Millet. Straw mulch is to be applied at 80lbs/100sf. AND UNDER-CUTTNG FROM SCOURING AT OUTLETS AND TO REDUCE FLOW VELOCITIES BEFORE STORMWATER ENTERS RECEIVING IUNDISTURBEDAREAV END F DEVICE Alternatives are subject to approved b the Count erosion control inspector. J PP Y Y P CHANNELS BELOW THESE OUTLETS. POINTED UH T r ENDARO ND FLOW N N 18. Permanent stabilization shall be lime and fertilizer, permanent seeding, and mulch. CULVERT INLET PROTECTION: Agricultural grade limestone shall be applied at 901bs/1000sf, incorporated into the top 4 6 A SEDIMENT FILTER LOCATED AT THE INLET TO STORM SEWER CULVERTS WHICH PREVENTS SEDIMENT FROM ENTERING _ N a� � 1e•DL1N1E7ER RLTRE)0(Osoxxr" Q inches of soil. Fertilizer shall be applied at 1000lbs/acre and consist of a 10-20-10 nutrient ACCUMULATING IN AND BEING TRANSFERRED BY THE CULVERT. IT ALSO PROVIDES EROSION CONTROL AT CULVERTS DURING THE g (D� AVAILABLE IN rTERS), 1r AND24• 4 � \ /-- mix. Permanent seeding shall be applied at 180lbs/acre and consist of 95%G Kentucky 31 or Tall Fescue and 0-5%G Perennial Ryegrass or Kentucky Bluegrass. Straw mulch is to be Y Sr PHASE OF A PROJECT WHERE ELEVATIONS AND DRAINAGE PATTERNS ARE CHANGING, CAUSING ORIGINAL CONTROL MEASURES TO BE INEFFECTIVE. T xrxwl/ LU - WOODEN STAKES applied at 80lbs/100sf. Alternatives are subject to approved by the County erosion control SAFETY FENCE: PLACED looa J inspector. A PROTECTIVE BARRIER INSTALLED TO PROHIBIT UNDESIRABLE USE OF AN EROSION CONTROL MEASURE. J 19. Maintenance: All measures are to be inspected weekly and after each rainfall. Any damage or clogging to structural measures is to he repair immediately. Silt traps are to be cleaned 1992 3.08 1992 336 IV, ,exarc U) when 50%G of the wet storage volume is filled with sediment. All seeded areas are to be reseeded when necessary to achieve a good stand of grass. Silt fence and diversion dykes which are collecting sediment to half their height must be cleaned and repaired immediately. 20. All temporary erosion and sediment control measures are to be removed within 30 days of final site stabilization, when measures are no longer needed, subject to approval by the County erosion control inspector. 21. This plan shall be void if the owner does not obtain a permit within 1 year of the date of approval. (Water Protection Ordinance section 17-204G.) 22. Permanent vegetation shall be installed on all denuded areas within nine (9) months after the date the land disturbing activity commenced. (Water Protection Ordinance section 17- 207B) PERMANENT STABILIZATION. PERMANENT SEEDING WILL BE APPLIED TO ALL DISTURBED AREAS AS PER THE PERMANENT STABILIZATION OF THIS EROSION & SEDIMENT CONTROL NARRATIVE. AFTER CONSTRUCTION IS COMPLETED, ALL DISTURBED AREAS OF THE SITE WILL BE LIMED, FERTILIZED, AND SEEDED AS PER CURRENT VDOT STANDARDS. THIS SHALL CONSIST OF THE FOLLOWING. TOP SOIL - 2" DEPTH LIME - 2 TONS/ACRE FERTILIZER - 600 LBS/ACRE OF 15-30-15 SEED - ERNST 5311 CONSERVAT70N SEED MIX - ERNMX-114 (45 LBS/ACRE PENNLA WN CREEPING RED FESCUE, 37.5 LBS/ACRE ARGILE KENTUCKY BLUEGRASS, 37.5 LBS/ACRE PARK KENTUCKY BLUEGRASS, 15 LBS/ACRE ANNUAL RYEGRASS & 15 LBS/ACRE PLEASURE PERENNIAL AFTER 7HESE AREAS ARE STABILIZED THEY WILL BE MOWED AND MAINTAINED ON A REGULAR BASIS. MAINTENANCE. IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CHECKED DAILY AND AFTER EACH SIGNIFICANT RAINFALL. SPECIFIC ATTENTION WILL BE GIVEN TO THE FOLLOWING ITEMS: A. SEDIMENT BASINS AND/OR TRAPS WILL BE CLEANED AND MAINTAINED IN ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK. B. ALL GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP THAT WILL PREVENT PROPER DRAINAGE. IF THE GRAVEL IS CLOGGED BY SEDIMENT THE GRAVEL WILL BE REMOVED AND CLEANED, OR IT WILL BE REPLACED. C. ALL SILT FENCE BARRIERS WILL BE CHECKED REGULARLY FOR UNDERMINING OR DETERIORATION OF THE FABRIC AND REPAIRED AS REQUIRED. SEDIMENT SHALL BE REMOVED WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHED HALF WAY TO THE TOP OF THE BARRIER. D. ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RESEEDED AS NEEDED. SILT FENCE CULVERT INLET PROTECTION ENYMNL --------- -T------- -------- ---- ---- T' Ir; ---TX- FILL -- -- I- CULVERT - _I - 1 1 I I I ____ __________ __�____Y_ //rr ______�--- ` J ` FOE OF-FU Sur EEM£ -pl$TM'CE I$ d' MMIINIIM IF FLOW 6 TOWARD EM&wRMDIT nw OPTIONAL STONE COMBINATION La ,.ir FLOM ti - 2Y "Wir 13. /381 ON 13 COMSE AGEd n CLASS REAM TO RIPIACF SILT FENCE IN - HORSESHOE MIEN HIGH VLtam OF FLOW Is upei , ON S,TES, SLOPES. PPPLY RJE PROTECUNERWG PN L TO TIE DIFERMON OF F AND NIGICR SECLRELY. BRING MATERIAL OOWN TO A LF\.TL AREA BEFORE 4 �` TEN IM NG mE INSTALIATION. TURN TIE END uNOER 4' MO STAPIE AT It MTEWN r IN OIT 1M. I KY RIOIECTNE COAR NG PARPLEL To Tir aRECTION OF RDW IISE .. SLOT$ / REQUIRED. AVID .ICINNG IMTERUL IN THE CENTER OF ME DITCH IF AT AIL Iessea Source: Adapted from VDOT Standard Sheets and Va. DSWC Plate 3.08-1 Source: Adapted from Ludlow Products Brochure MAX. WATER LEVEL OUTLET PROTECTION il: Q 1 = 0.52 CFS /V 4- MINIMUM FREEBOARD Q2 = 0. 75 CFS 2-1 Mqg. SLOPE Q 10= 1.27 CFS 1W DIAMETER FILTRF_XR® SOXXrN �IAAMETAEVRSLAnLE w e 12" AM 24• OUTLET = CURB CUT MIN. 2'Xrx PLACED IT CLASS A1, EC-1 STONE) STAKES PLACED 10' O.C. La = 12' SINGLE INSTALLATION SECTION W1 = J. 75' NTS W2 = 9' RIPRAP SLO LTREXXO RUNOFF DIVERSION SECTIONS RIPRAP DEPTH-o�.5' / 1 `C�j NOTES ,G// 1. REMOVE SEDIMENT FROM THE SAT LOWEND OF DEVICE UPSLOPE SIDE OF THE SOJO("'WHEN POMfm DOWNHILL ACCUMULATION HAS REACHED I/ OF ��"ISCHUZE01-# TO P1�11BIT P<it EFFECTIVE HEIGHT OF $0XX"" 2 AREA t 2. SLOPES GREATER THAN 5% MAY REQUIRE ADDITIONAL STABILIZATION PRACTICES 3. SOXICn` MAY SE SEEDED AT THE TIME OF INSTALLATION FILTREXX® RUNOFF DIVERSION Plate 3.36-1 OUTLET PROTECTION W2: Q1 = 7.79 CFS Q2 = 10.13 CFS Q10= 16.43 CFS OUTLET = CONC. PIPE D50 = 12" MIN. (VDOT CLASS Al, EC-1 STONE) La = 28' Wl = 5' W2 = 14' RIPRAP SLOPE=EXISTING SLOPE RIPRAP DEPTH = 2' 1992 PIPE OUTLET CONDITIONS A A 'IPE OUTLET TO FIAT AEA WITH NO DEFINED HANNEL (MIN.) _- PIPE OUTLET TO WELL DEFINED CHANNEL PLAN VIEW I L a 1 oa -7 -L a SECTION A -A _F FRrSR CLOTH! KEY IN b"-6'; RECOMMENDED FOR ENTIRE PERWETER NOTES: 1. APRON LINING RAY BE RIPRAP. GROUTED RIPRAP. GARION BASIL OR CONCRETE. 2. Ia IS THE LENGTH OF THE RIPRAP APRON AS CALCUUTED USING PUTES 3,18-3 AND 3,18-4, 3. 4 = 1.5 TIRES THE MAIIIMUM STONE DNMETER, BUT NOT LE33 THAN 6 INCHES, Source: Va. DSWC Plate 3.18-1 0 z w PA LU 0 J = U Y LU I- 0 LU LU I- LU Of V C) O N J a- V / I LU Fee- 2: LU z I/�� LL a- L a- 0 (Ql r- J LLI Z LLJ F_ Q Z LL Z O Z LLJ 0 Lli L 1 Q Z O O LU U w LU a n JOB NO. 112066 SCALE AS SHOWN E PRE -DEVELOPMENT SWM PLAN: POST -DEVELOPMENT SWM PLAN: / SCALE 1"=301 / o SCALE 1"=30' NTH 0F�� TMP 07800-00-00-017A 0� TMP 07800-00-00-017A eq� �� ✓' N/F TIRESUM LLC ti5b / N/FTIRESUM LLC ,F ,S�S/ SCOTT R. LLINS'Z DB 4417 PG 283 S DB 4417 PG 283 SF� OL) Lic. No. 0357911n DB 2290 PG 421 (PLAT) DB 2290 PG 421 (PLAT) �. P / UP tio� �� 12/06/21 / iMH �e � I I i v • TMP 78-17A j � � ` l MP 78-t7ALIMITS OF HE BOUNDARY FOR THE PROPOSED /�� //� ��., fj HE BOUNDARY FOR THE PROPOSED LIMITS OF DISTURBANCE (0.59 ac.) IS ////�// / VRRM WATERDISTURBANCE QUALITY BTY CALCULATIONS J /� /41 USED TO DEFINE THE BOUNDARY FOR THE ��� �� �� USED TO DEFINE THE BOUNDARY FOR THE Z/, ���/� ° Q // /�/// ����� �� B =9 E00 EAR. ROOF / // / FDC VRRM WATER QUALITY CALCULATIONS, /////�j��TYP. // ///� ��/ '�' :.i.' oo��jNsvaur w TYP.//������ �/� TOEMAIN 1 EX. ROOFGM � ///� D CONNECTTO SPOUTSTO , Z / /OPOSED 6" ADS �p Z 0 G L ® F _ ISTING G NSVSTEM O i� Z / y LOCK LOCK �UILDING / r BUILDING LU O LIMITS OF a �// V) 11 11 ANALYSIS FOR / / I 6 // / W-35500 5Gz 0 E o q o \ �- FFE BW 350.0 $_ FFF O THIS /�� // 9. ® / LU LIMITS OF ®®® DEVELOPMENT / �� ANALYSIS FOR THIS 0/ / �v, DEVELOPMENT / �� > EXISTING - , EXISTING/ , w ALBEMARLE //INUVT= ALBEMARLE �Nvi�COUNTY O338.o a / FFE �. - � COUNTY OUT=338.a / /, ® / 1 5 PRESERVED SLOPES �j� ®® / 3SS84 31PRESERVED SLOPES°j 400, % e �j ss�° �SW=355,00 S CUR EX. 1� STR-1 INLET / /-/// / °/ / m / BENCHMARK - / / EX PARKING �' _ OFSDMH DRAINAGE /1 LOT � TMP 07700 00 00 04100 i i / TOP 354 39 TMP 077 0 00 00 04100 i - - COUNTY OFALBEMARLE / / p / /��/ _ DRAINAGE / /1 DB 2372, PG.580 / .� j p / _ _, i6" RCP /1 r] E A TO COUN OF ALBEMARLE / // /��_ _ _ -- 1_ -- P � � OUT-348.69 BENCHMARK AREA DB 72, PG.580 � y/- /� � � � � _ 1 .i� - N-389 / / �/ �z 1.74 ac. / ° /' / /i / R VED E-=494B�746 EXISTING / // // // W LU H 00 ID 0 ELEV-355.oa M i w :. �� Q O O PARKING SIGNS DES - / /� ////3TR-7 / °; CN-98 _ / - X INLET = - �% /i // sTR-z �� o /, / /,.�° � � � o Tc=0.10 hrs. / UB]ECT HANDICAP / 1.74 ac_ UBJECT������� / PARKING SIGNS PROPERTY, oRaa / / / / PROPERTY, TYP. SUBAREA A X' 5T L9 / 0.55 aC. /� Pre -Re Development Impervious Area �, �// STIR �', - - Post-ReDevelopment Impervious Area _ EXISTING 100-YR / �/// - z CI V = V 7 / Summary �% / EXISTING 100-YR Summary r / / w (ON DA A- Water Quantity) w / ti FEMA FLOODPLAIN �/ / _ BUSIGNOP FEMA FLOODPLAIN �i w / / (ON DA A- Water Quantity) C7 o TC - 0.10 hrs. 55 Existing Parking &Drive Aisles 1,258 sf Parking & Drive Aisles 12,540 sf (.r) Existing Walkways 1,502 sf %/ i / Walkways 1,160 sf 0) 40`72W 17g j9 / � ERUNE Existing Buildings/Structures 3,000 sf �, / ,, ��Zz`�rl 1j8� / SUBAREA A ITERLINE y N 552" �� / EASEMENT �� o 552° 5EMENT Buildings 2,864 sf q /� // �/ 0 0.55 ac. PG 4 / PC 5,760 sf ��. / ����/� / / 16,584 sf co X/ //f DRAINAGE e j / / / CN=87 z �� / / / Tc=0.10 hrs. Q ° AREA TO / �pZ /� / / (� J Tc=0.10 hrs. / � � � � Tc=0.10 hrs. 13' OF OLF w/ A ELEV.=0.25' / EXISTING Pre -Re Development Impervious Area / / 17' OF OLF w/ A ELEV.=0.35' / / Post-ReDevelopment Impervious Area W � EXISTING Ex. ROOF EXISTING 110' OF CONC. FLOW w/ A ELEV.=9' BLOCK / INLET Summary / DOWNSPOUT 132 OF CONC. FLOW W/ A ELEV.=3.5' BLOCK / N BUILDING / 22' CHANNEL FLOW IN PIPES ® 3.8 ft/s BUILDING / / Summary N (Within Limits of Disturbance- Water Quality) Z / ♦ / / ♦ (Within Limits of Disturbance- Water Quality) / ♦ / / Parking & Drive Aisles 2,558 sf / ♦ / / ♦ � Walkways 2,002 sf ♦ � Parking &Drive Aisles 13,840 sf > Q TMP 07800-00-00-017G2 ♦ TMP 07800-00-00-017G2 ♦ Walkways 1,660 sf ., J N/F CHARLES ROTGIN JR Buildings 500 sf N/F CHARLES ROTGIN IR 0 Buildings 384 sf W > IZ 1 DB 3880 PG 673 ♦ 1 DB 3880 PG 673 DB 1021 PG 410 (PLAT) � 5,060 sf DB 1021 PG 410 (PLAT) ♦ 15,884 sf General Construction notes for Stormwater GRAPHIC SCALE CHANNEL& FLOOD PROTECTION SUMMARY LL W Management Plans 30 0 15 30 60 120 W w 1. All dams and constructed fill to be within 95% 1 1 1 1 1 Method of 9VAC25-870-66 Is I— W of maximum dry density and 2% of optimum Pre-Dev. Method of 9VAC25-870-66 Method of 9VAC25-870-66 Method of 9VAC25-870-66 COUNTY OF ALBEMARLE L97 moisture content. All fill material to be approved Post-Dev. Subarea Limits of Analysis for Channel Department of Community Development O Z V' by a geotechnical engineer. A geotechnical Subarea Channel Protection Compliance Flood Protection Compliance Limits of Analysis for Flood Protection IN FEET Protection w Q engineer is to be present during construction of ( ) J dams. t inch = 30 ft. I A I A Isection B.3.a (Energy Balance) I N/A (Energy Balance Satisified) Section C.2.b (1D-yr. Post Flow <Pre Flow) I N/A (10-yr. Post Flow <Pre Flow Satisified) Construction Record Drawings (As -built) for VSMP 0� U Z 2. Pipe and riser joints are to be watertight within stormwater Management facilities. FACILITY INSPECTIONS DURING CONSTRUCTION: Q Ur 3. For temporary sediment traps or basins which The followingilist information required ion record drawings for = are to be converted to permanent stormwater CONSTRUCTION INSPECTIONS ARE CRITICAL TO ENSURE THE UNDERGROUND DETENTION SYSTEM IS PROPERLY UNDERGROUND DETENTION SYSTEM GENERAL NOTES: s a st oon re 9 on construct7 management facilities; conversion is not to take BUILT. BECAUSE THE TIMING OF THE INSTALLATION IS DICTATED BY THE CONTRACTOR, THE CONTRACTOR 1. TRASHRACKS SHALL BE INSTALLED ON ALL ORIFICES, INCLUDING THOSE LOCATED ALONG stormwater facilities (reference Water Protection Ordinance 17-422). It is preferable that the W 01 Z place until the site is stabilized, and permission SHALL BE RESPONSIBLE FOR CONTACTING THE ENGINEER, COUNTY INSPECTOR AND CONTECH THE WEIR PLATE WITHIN THE UNDERGROUND DETENTION SYSTEM IN ACCORDANCE w/ THE construction record drawing be prepared by someone other than the designer. Please do not 1"4 W has been obtained from the erosion control REPRESENTATIVE PRIOR TO INSTALLATION. CONTECH, OR AN EQUIVALENT PIPE MANUFACTURER, SHALL BE inspector. . DETAIL SHOWN ON ON THIS SHEET (OR EQUIVALENT) CONTACTED WELL AHEAD OF THE CONSTRUCTION START DATE TO ENSURE ADEQUATE LEAD TIME FOR 2. DETENTION SYSTEM's WEIR PLATE TO BE PRE -MANUFACTURED AND DELIVERED TO THE provide design drawings as construction record drawings. W Q MATERIALS AND DELIVERY. MULTIPLE SITE VISITS AND INSPECTIONS ARE REQUIRED TO BE SCHEDULED BY THE � O \ CONTRACTOR, WITH THE ENGINEER, COUNTY INSPECTOR & PIPE MANUFACTURER, DURING THE FOLLOWING SITE. WEIR PLATE SHALL BE SECURELY AFFIXED TO THE INSIDE WALLS OF THE MANHOLE - 5 PROPOSED STORMWATER MANAGEMENT NARRATIVE FOR THE PROJECT: STRUCTURE. A. A signed and dated professional seal of the preparing engineer or surveyor. STAGES OF THE UNDERGROUND DETENTION SYSTEM CONSTRUCTION PROCESS: OVERVIEW: 3. PRIVATE DESOTO COURT LOCATED WITHIN THE SWM EASEMENT, SHALL SERVE AS ACCESS B. The name and address of the fine and individual preparing the drawings on the title sheet. Ul U) THE PROPOSED STORMWATER MANAGEMENT PLAN COMPLIES WITH PART IIB REQUIREMENTS i. PRE -CONSTRUCTION MEETING TO THE PROPOSED UNDERGROUND DETENTION SYSTEM. C. The constructed location of all items associated with each facility, and the inspection records to verify z. INITIAL SITE PREPARATION (INCLUDING INSTALLATION OF PROJECT E&S CONTROLS) 4. CONTACT COLLINS ENGINEERING (434.293.3719) REGARDING ANY QUESTIONS CONCERNING proper dimensions, materials and installation. The items include, but are not limited to the following: TO MITIGATE IMPACTS FROM THE PROPOSED IMPROVEMENTS. SUMMARIES OF THIS W O EXCAVATION/GRADING NTERIM/FINAL ELEVATIONS). THE UNDERGROUND DETENTION SYSTEM. 1. Inspection Records and photographs for pipe trenches and bedding, including underdrains. COMPLIANCE CAN C VIEWED IN THIS VSMP SET AND IN THE ACCOMPANYING STORMWATER U) Ln 3� (E.G.,, WHEN THE DETENTION PIPE SUBGRADE IS READY FOR PIPE CONSTRUCTION BUT BEFORE STONE BEDDING IS 5. ALL FILL EMBANKMENT MATERIAL SHALL CONSIST PREDOMINANTLY OF SOIL AND BE 2. Video Pipe Inspection for an pipes which are not accessible or viewable. Z Ln MANAGEMENT CALCULATIONS PACKET. 4' p p y p p INSTALLED. PLACED IN SUCCESSIVE UNIFORM LAYERS NOT MORE THAN 8 INCHES IN THICKNESS BEFORE 3. Updated Location with geo-coordinates of all facilities. � S. AFTER STONE BEDDING IS PLACED AND COMPACTED, BUT PRIOR TO PIPE INSTALLATION. COMPACTION OVER THE ENTIRE AREA IN ACCORDANCE WITH CURRENT VDOT ROAD AND O STORMWATER QUANTITY: 6. AT THE TIME OF THE PIPE INSTALLATION. BRIDGE SPECIFICATIONS, OR THE FILL EMBANKMENT MATERIAL SHALL MEET THE PIPE 4. Verified Drainage Area maps for the drainage area treated, and for drainage to the facilities. � U)CURRENTLY ALL OF THE EXISTING IMPERVIOUS AND PERVIOUS AREAS WITHIN THE PROJECT 7. AFTER PIPE INSTALLATION, BUT PRIOR TO PLACING FILL OVER THE SYSTEM. MANUFACTURER's SPECIFICATIONS OUTLINED BELOW (WHICHEVER IS MORE STRINGENT). 5. Current physical and topographic survey for all earthen structures. Ponds should include a survey LIMITS EXIT THE PROPERTY UNTREATED. THE PROPOSED PLAN WILL CHANGE THIS AND WILL 8. FINAL INSPECTION (DEVELOP A PUNCH LIST FOR FACILITY ACCEPTANCE) 6. ALL FILL SHALL BE PLACED AT 95% COMPACTION AND TESTED BY A GEOTECHNICAL of the pond bottom. Surveys should verify pond volumes are per design. Corrections may be required H z CAPTURE THE MAJORITY OF THE PROPOSED IMPROVEMENTS. THE CAPTURE AND DETENTION ENGINEER TO ENSURE COMPACTION IS REACHED AND MAINTAINED, OR THE FILL SHALL for alterations from the design. mi W Q OF THE MAJORITY OF THESE IMPROVEMENTS IS REPRESENTED BY POST -DEVELOPMENT PLEASE ALSO SEE BELOW, UNDER FACILITY MAINTENANCE, FOR REQUIRED INSPECTIONS AFTER INSTALLATION MEET THE PIPE MANUFACTURER's SPECIFICATIONS OUTLINED BELOW (WHICHEVER IS MORE 6. Plants, location and type. 0 SUBAREA A, WHERE AN UNDERGROUND DETENTION SYSTEM ATTENUATES THE RUNOFF. IS COMPLETE. STRINGENT). 7. Plans and profiles for all culverts, Pipes, Risers, Weirs and Drainage Structures - Display the Of CHANNEL PROTECTION IS MET VIA 9VAC25-870-66 SECTION B.3.a. FLOOD PROTECTION 7. VDOT STD. IS-1 & ST-1 ARE REQUIRED ON ALL PROPOSED PUBLIC STRUCTURES AND THE installed type of drains a structures, culvert/pipe size, weirs, materials, inlets or end treatment(s), mmi Q IS MET VIA 9VAC25-870-66 SECTION C.2.b. FACILITY INSPECTIONS & MAINTENANCE AFTER CONSTRUCTION: UNDERGROUND DETENTION SYSTEM's JUNCTIONS. g inlet and outlet protection, alignment and invert elevations compared to design. THE FOLLOWING MAINTENANCE TASKS SHALL BE PERFORMED BY THE CONTRACTOR IN THE FIRST YEAR 8. PRIOR TO CONSTRUCTION THE CONTRACTOR SHALL TEST -DIG AT THE EXISTING INLET & PLEASE SEE THE ATTACHED STORMWATER MANAGEMENT CALCULATIONS PACKET FOR 8. Computations: For significant deviations from design, provide sealed computations verifying that C FOLLOWING THE INSTALLATION OF THE UNDERGROUND DETENTION SYSTEM. OUTFALLTO CONFIRM THE INVERTS AND TO ENSURE THE PROPOSED GRADES CAN BE i. FOR THE FIRST YEAR FOLLOWING CONSTRUCTION, THE SITE SHALL BE INSPECTED BYTHE CONTRACTOR ACHIEVED. CONTRACTOR SHALL CONTACT COLLINS ENGINEERING OF ANY DISCREPANCIES IN the as -built condition is equivalent or better than design. O ADDITIONAL DETAILS PERTAINING TO THE STORMWATER QUANTITY COMPLIANCE. N QUARTERLY AND AFTER STORM EVENTS THAT EXCEED 1/2 INCH OF RAINFALL. THE HORIZONTAL OR VERTICAL ALIGNMENT PRIOR TO ORDERING AND CONSTRUCTION. 9. Ditch Lines - Display the constructed location of all ditch lines and channels, including typical 0 STORMWATER QUALITY: 2. THE CONTRACTOR SHALL LOOK FOR BARE OR ERODING AREAS IN THE CONTRIBUTING DRAINAGE AREA AND 9. ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA sections and linings. THE STORMWATER QUALITY REQUIREMENTS FOR THIS DEVELOPMENT ARE MET THROUGH AROUND THE UNDERGROUND DETENTION SYSTEM AND MAKE SURE THEYARE IMMEDIATELY STABILIZED. STANDARDS FOR CONSTRUCTION INDUSTRY (29 CFR PART 1926). 10. Easements - Show all platted easements with dead book references labeled. Facilities and drainage THE BEST MANAGEMENT PRACTICE OF PURCHASING NUTRIENT CREDITS. A MINIMUM CONTRACTOR SHALL SPOT RESEED AS NECESSARY AND ENSURE ADEQUATE SITE COVERAGE IS PROVIDED 10 PENDING PRIOR APPROVAL BY COLLINS ENGINEERING THE DRAINAGE PIPE MATERIALS MAY U PHOSPHOROUS REMOVAL RATE OF 0.46 Ibs/yr IS REQUIRED. THE DEVELOPER WILL WITHIN THE FIRST YEAR. AT THE QUARTERLY INSPECTIONS, AND AFTER EACH RAINFALL EVENT IN EXCESS OF BE SUBSTITUTED. ALL DRAINAGE PIPE INSTALLATION PRACTICES SHALL BE IN ACCORDANCE must be within platted easements. Provide copies of recorded documents. PURCHASE NUTRIENT CREDITS PRIOR TO THE ISSUANCE OF A LAND DISTURBANCE z', THE CONTRACTOR SHALL PERFORM THE ANNUAL MAINTENANCE TASKS DESCRIBED BELOW IN #3. WITH CURRENT VDOT STANDARDS AND REQUIREMENTS. CONTRACTOR SHALL ENSURE 11. Guardrail, fences or other safety provisions -Display the constructed location of all safety u PERMIT. MINIMUM COVER REQUIREMENTS ARE MET WITH ANY PIPE SUBSTITUTION. length provisions; fences, guardrail, including the type, and applied end treatments, compared to AFTER THE FIRST YEAR THE OWNER SHALL PERFORM FOLLOW-UP INSPECTIONS ANNUALLY, AND AFTER EACH desi n. g 0 _ PLEASE SEE THE ATTACHED CALCULATIONS PACKET AND THIS SHEET FOR ADDITIONAL SIGNIFICANT RAINFALL EVENT: 12. Material layers - biofilter media, stone layers, sand layers, keyways and cores must be verified as to a � DETAILS. 3. A SPRING MAINTENANCE INSPECTION AND CLEANUP SHALL BE CONDUCTED ANNUALLY. THE MAINTENANCE PROGRAM FOR THE UNDERGROUND DETENTION SYSTEM SHALL INCLUDE CLEANING IT ANNUALLY OF TRASH, material types and depths. Include inspection reports, boring or test pit reports and materials JOB NO. 112066 DEBRIS & SEDIMENT AND ENSURING THE INTEGRITY OF THE WEIR PLATE, TRASH RACK AND OUTFALL & certifications. Biofilter media must be an approved state mix. A E SCALE ° INFLOW PIPES. THE OWNER SHALL ENSURE THE SYSTEM IS OPERATING AS INTENDED AND IS NOT CLOGGED 13. Access roads - show location of access roads, surface treatment, drainage, etc, as applicable. OR DAMAGED. THE OWNER SHALL IMMEDIATELY CLEAN & REPAIR THE FACILITY AS NECESSARY AND SHALL 14. Compaction reports are required to verify fill compaction in dams. - PAY SPECIAL ATTENTION TO THE INLET AND OUTLET LOCATIONS. THE ACCESS MANHOLES SHALL BE USED 15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning. sNeET No. FOR INSPECTION AND MAINTENANCE. 6 r3 0 N r3 p rY v) 365 N Ln W 365 w _O �0-� U_ inM o v1 p 00 m ¢ - o ¢ Ol AMH- 36o N MIt z0 36o 0 1 D tM z o- 0 Y u » STR-1 VDOT STD. DOGHOUSE MH ^ Z Z TP=353.08 r z z INV. IN=343.67 FROM 3-1 INV. IN=345.78FROM 201 P30PDXISTI! 5535 NOTE: PROPOSED STORM SEWER SHOWN IS CLASS III RCP. THE CONTRACTOR MAY SELECT A VDOT APPROVED MATERIAL IN LIEU OF THE CL. III RCP FROM THEIR APPROVED LIST PROVIDED ALL PIPE, PIPE BEDDING, BACKFILL AND INSTALLATIONS ARE IN ACCORDANCE WITH THE CURRENT VDOT STANDARDS. ANY PIPE MATERIAL PROPOSED AS CL. IV RCP SHALL NOT BE SUBSTITUTED WITH ANOTHER PIPE MATERIAL. EX. INV. IN=343-71 355 EX. INV. OUT=343-45 GRADE GRADE PROPOSED ELEVATED 12" PIPEALLOWS MORE LESS 350 350-FREQUENTS S ORM EVENT TO SAFELY BYPASS THE 12"HDPE UNDERGROUND 38.48 LF Qa 2.00% DETENTION SYSTEM 345 345 {�' I PROPOSED 48" CMP 12"HDPE J UNDERGROUND 8.99 LF Qa z.00% 1z"HDPE DETENTION 340 13.43 LF Qa 2.00% 340 SYSTEM rn o m LnM m m 20+00 S EMERGENCY BYPASS PROFILE PROFILE HUGGER FLAT GASKET SINGLE BAR, BAND BOLT AND STRAP (SBBS) FLAT GASKET CONNECTION DETAIL (SBBS) 22/3"x1/2" RE -ROLLED END HEL-COR PIPE GENERAL NOTES: 1. JOINT IS TO BE ASSEMBLED PER AASHTO BRIDGE CONSTRUCTION SPECIFICATION SEC 26A.2.4. 2. BAND MATERIALS AND/OR COATING CAN VARY BYLOCATION. CONTACTYOUR CONTECH REPRESENTATIVE FOR AVAILABILITY. 3. BANDS ARE SHAPED TO MATCH THE PIPE -ARCH WHEN APPLICABLE. 4. BANDSARE NORMALLY FURNISHED AS FOLLOWS: e 12"THRU4B"1-PIECE 54' THRU 96' 2-PIECES a 102' TH RU 144' 3-P IECES 5. BAND FASTENERS ARE ATTACHED WITH SPOT WELDS, RIVETS OR HAND WELDS. 6. ALL CMP IS REROLLED TO HAVE ANNULAR END CORRUGATIONS OF 22/3'k1/2' 7. DIMENSIONS ARE SUBJECT TO MANUFACTURING TOLERANCES. 8. ORDER SHALL DESIGNATE GASKET OPTION, IF REQUIRED (SEE DETAILS ABOVE). H-12 HUGGER BAND DETAIL NOT TO SCALE 20 MIL PE IMPERMEABLE LINER OVER TOP OF PIPE (IF REQUIRED) TYP.j 124"TYP. TYPICAL SECTION VIEW NOT TO SCALE LIMITS OF REQUIRED BACKFILL 24"SEE TYPICAL -BACKFILL DETAIL NOTES NOTE: IF SALTINGAGENTS FOR SNOW AND ICE REMOVAL ARE USED ON OR NEAR THE PROJECT, A GEOMEMBRANE BARRIER IS RECOMMENDED WITH THE SYSTEM. THE GEOMEMBRANE LINER IS INTENDED TO HELP PROTECT THE SYSTEM FROM THE POTENTIAL ADVERSE EFFECTS THAT MAY RESULT FROM A CHANGE IN THE SURROUNDING ENVIRONMENT OVER A PERIOD OF TIME. PLEASE REFER TO THE CORRUGATED METAL PIPE DETENTION DESIGN GUIDE FOR ADDITIONAL INFORMATION. 350 EXISTING G 345 340 335 N 00 M M PROPOSED ACCESS MH W/ STAIRS FOR INSPECTION & MAINTENANCE RESTRICTIVE WEIR PLATE AT LOW POINT _fTO DRAIN THE SYSTE SEE DETAIL ON THIS SHEET I V 2-YR PEAK Y IK WSE=346.74 YR PEA WEIR PLATE INVERT=344• o0 15" RCP 3714 LF Qa o.67% EX. 18"RCP PROPOSED LOWER IS" 82.63 LF QB 6.59% UNDERGROUND DETENTION SYSTEM PRIMARY OU FAL INV. OUT=338. 00 It 00 i 0 0 0 m m m M m M m M 355 NOTE: ALL DRAINAGE STRUCTURES WITH A STR-7 VDOT STD. DI-3C (L=1o') DEPTH OF 12' OR GREATER SHALL HAVE TP=35°a3 SAFETY SLABS IN ACCORDANCE WITH INV. OUT=344-75 TO UGD STANDARD SL-1 AS FOUND IN THE 2008 350 ROAD AND BRIDGE STANDARDS. NOTE: ALL DRAINAGE STRUCTURES WITH A DEPTH OF 4' OR GREATER SHALL HAVE 15"RCP STEPS IN ACCORDANCE WITH STANDARD 2S.oS LF Qa 0.54% ST-1 AS FOUND IN THE 2008 ROAD AND 345 BRIDGE STANDARDS. PROPOSED 48" CMP UNDERGROUND DETENTION SYSTEM Qa o.5o%TO ATTENUATE RUNOFF CAUSED FROM THIS DEVELOPMENT. TOTAL CMP LENGTH=16o.00' 340 0+00 0+50 1+00 1+So 2+00 2+50 STR-7 - STR-1 PROFILE 1/2" zinc plated hook attached wroth 3/8 fastener 2-1/a" ma. Hale. Isometric p,pr 1//- HDPE Plata (optional) «: "wvert .r'tt HDPH 'holes al plastic tat, O 2-1/8" holes and 1 la plate OOmlution to Inc.by Plastic _ Solutions ". or equal Sec Lion 1. Rthe hale angleticeavPi ElevaLion I.gi • eLam tdN optional plate EnPF atnml.vrel pleat" .un 2-1/8" holes and 1/4" plate manufactured by Plastic Solutions Inc or equal PLASTIC SOLUTIONS P.O Pox 4:186 DEBRIS CAGE W...,e, �1504 INC. 877-877-5727 UNDERGROUND DETENTION SYSTEM MINIMUM TRENCH & BACKFILL REQUIREMENTS: 1. THE TRENCH CONTAINING THE DOUBLE RUN OF 48" CMP STORM PIPE SHALL HAVE A 168" WIDE TRENCH. THE TRENCHES CONTAINING THE 12" BYPASS HOPE PIPE AND THE 15" OUTFALL PIPE SHALL HAVE 36" WIDE TRENCHES. CONTRACTOR SHALL WRAP THE EXCAVATED TRENCHES WITH A 6 OUNCE FILTER FABRIC CLOTH. A SUITABLE FOUNDATION SHALL BE BENEATH THE TRENCHES' FILTER FABRIC CLOTHS. 2. TRENCHES TO INCLUDE A 6" #57 STONE BED AT 95% COMPACTION BENEATH THE HP STORM PIPES. 3. TRENCHES SHALL BE BACKFILLED WITH #57 STONE AT 95% COMPACTION AND SHALL EXTEND A MINIMUM OF 6" VERTICALLY ABOVE THE CROWN OF THE STORM PIPES. 4. THE TOP OF THE #57 STONE SHALL BE COVERED WITH A 6 OUNCE FILTER FABRIC CLOTH, OVERLAPPING THE PREVIOUSLY INSTALLED CLOTH THAT SURROUNDS THE BOTTOM AND SIDES OF THE TRENCHES. 5. SUITABLE FILL REACHING THE FINISHED GRADES SHALL BE APPLIED ABOVE THE TOP LAYER'S FILTER CLOTH, MEETING MINIMUM PIPE MANUFACTURER'S REQUIREMENTS TO PREVENT FLOATATION AND ENSURE PIPE INTEGRITY IS MAINTAINED. 6. A MINIMUM COVER OF 12" IS REQUIRED ABOVE THE CROWN OF THE STORM PIPES. 7. SEE THE'TYPICAL BACKFILL DETAIL' ON THIS SHEET FOR ADDITIONAL UNDERGROUND DETENTION SYSTEM PIPE REQUIREMENTS. 335 NOTES: 1. ALL FILLTO BE PLACED AT95% COMPACTION. 2. MINIMUM 3.5' OF COVER MUST BE MAINTAINED OVER W/L. 3. MINIMUM OF i' OF VERTICAL SEPARATION FROM STORM SEWER & W/L AND 1.S' OF SEPARATION BETWEEN W/L & SANITARY SEWER MUST BE PROVIDED. NOTE: CLASS I BACKFILL MATERIAL SHALL BE CRUSHER RUN AGGREGATE SIZE NO. 25 OR 26, AGGREGATE BASE MATERIAL SIZE 21A OR 21B, FLOWABLE FILL, OR CRUSHED GLASS CONFORMING TO THE SIZE REQUIREMENTS FOR CRUSHER RUN AGGREGATE SIZE 25 AND 26, PER VDOT ROAD AND BRIDGE SPECIFICATIONS, z w 0 5a w w w a a 5 BEDDING 3 FOUNDATION 2 o� (ULic. OTT R. LLINS`CONTRACTOR SHALL CALL THE COUNTY INSPECTOR & "J No. 035791 noOti ENGINEERING DEPARTMENT 24-HOURS BEFORE ANY ANTICIPATED CONSTRUCTION ACTIVITIES FOR THE 03/03/22BMPs. THIS IS INCLUSIVE OF WHEN THEssto ND DETENTION SYSTEM SUBGRADE IS NAL / UNDERGROUND D / O READY FOR PIPE CONSTRUCTION, BUT BEFORE PROPOSED LOWER 015" / - STONE BEDDING IS INSTALLED. J UNDERGROUND DETENTION % I SYSTEM PRIMARY OUTFALL / PROPOSED ACCESS MH w/ STAIRS FOR INSPECTION & MAINTENANCE, TYP. / ACCESS MH TO BE LOCATED UPSTREAM / & DOWNSTREAM FROM RESTRICTIVE WEIR PLATE AND AT THE MIDPOINTS & / PROPOSED VARIABLE WIDTH PUBLIC / HIGH POINTS OF THE SYSTEM, AS / in SW&ACCESS EASEMENT SHOWN. z W In / DB. 111 ��G.cc _ V - - - - - -- z ACCESS MANHOLE (TYP.) /` 048" INV. Z 0LD 344.00' L O a . � '^ 048" INV. / _ in p cc 74 LF / V) o o 344.37" 0.57 0 a LU g Jo 0 z p p a / @ _ 74 LF @ / pa 0.5% / w 1- > 448" INV. Lu a z 448" INV. / � z _ _ _ 344. - _ 344.03' > --__ - - - - - - - - W RESTRICTIVE STEEL WEIR PLATE, AT LOW POINT, TO DRAIN PROPOSED ELEVATED 012' PIP / PARKING LOT TO SERVE AS THE SYSTEM. SEE DETAIL ON THIS SHEET. ALLOWS MORE SIGNIFICANT & ACCESS TO SWM FACILITY 1vk LESS FREQUENT STORM EVENTS TO SAFELY BYPASS THE UNDERGROUND DETENTION DETAIL: SCALE / UNDERGROUND DETENTION SYSTEM GRAPHIC SCALE 10 0 5 10 20 40 TRENCH CONDITION EMBANKMENT CONDITION FINAL BACKFILL N INITIAL BACKFILL -/ a N SITU\}< DIAMETER MIN. CORR. COVER PROFILE W-10" 12" 1 1/2"x 1/4' 12'-48" 12" 2 2/3"x 1/2' 54"-90" 12" 3" x 1", 5" x 1' 102'-144" D/8 3" x 1', 5" x 1' INITIAL FILL ENVELOPEV to BACKFILL REQUIREMENTS FOLLOW THE GUIDELINES OF AASHTO LRFD BRIDGE DESIGN (SEC 12) AND CONSTRUCTION (SEC 26) 1 MINIMUMTRENCH WIDTH MUSTALLOW ROOM FOR PROPER COMPACTION OF HAUNCH MATERIALS UNDER THE PIPE. THE MINIMUM TRENCH WIDTH (12.6.6.1): PIPE <_ 12': D+ is' PIPE> 12': 1.5D+12' 1a MINIMUM EMBANKMENT WIDTH (IN FEET) FOR INITIAL FILL ENVELOPE (12.6.6.2): PIPE <24': 3.OD PIPE 24" - 144': D +4'0" PIPE> 144': D+10'0' 2 THE FOUNDATION UNDER THE PIPE AND SIDE BACKFILL SHALL BE ADEQUATE TO SUPPORT THE LOADS ACTING UPON IT(26.5.2). 3 BEDDING MATERIAL SHALL BE A RELATIVELY LOOSE MATERIAL THAT IS ROUGHLY SHAPED TO FIT THE BOTTOM OF THE PIPE, AND A MINIMUM OF TWICE THE CORRUGATION DEPTH IN THICKNESS, WITH THE MAXIMUM PARTICLE SIZE OF ONE-HALF OF THE CORRUGATION DEPTH (26.3.8.1.26.5.3). 4 CORRUGATED STEEL PIPE(CSP/HEL-COR). 5 HAUNCH ZONE MATERIAL SHALL BE HAND SHOVELED OR SHOVEL SLICED INTO PLACE TO ALLOW FOR PROPER COMPACTION (26.5.4). 5a INITIAL BACKFILL FOR PIPE EMBEDMENTTO MEET AASHTOA-1,A-2 OR A3 CLASSIFICATION, ORAPPROVED EQUAL, COMPACTEDT090% STANDARD PROCTOR (T 99). MAXIMUM PARTICLE SIZE NOT TO EXCEED 3- (12.4.1.2). ALL LIFTS PLACED IN A CONTROLLED MANNER. IT IS RECOMMENDED THAT LIFTS NOT EXCEEDAN 8' UN COMPACTED LIFTHEIGHTTO PREVENTUNEVEN LOADING, AND THE LESSER OF M THE DIAMETER OR 24" AS THE MAXIMUM DIFFERENTIAL SIDE -TO -SIDE (26.5A). 6 INITIAL BACKFILL ABOVE PIPE MAY INCLUDE ROAD BASE MATERIAL (AND RIGID PAVEMENT IF APPLICABLE). SEE TABLE ABOVE. Oa TOTAL HEIGHTOF COMPACTED COVER FOR CONVENTIONAL HIGHWAY LOADS IS MEASURED FROM TOP OF PIPE TO BOTTOM OF FLEXIBLE PAVEMENT OR TOP OF RIGID PAVEMENT (12.6.8.3). 7 FINAL BACKFILL MATERIAL SELECTION AND COMPACTION REQUIREMENTS SHALL FOLLOW THE PROJECT PLANS AND SPECIFICATIONS PER TH E ENGIN EER OF RECORD (265.4.1). NOTES: a GEOTE)MLE SHOULD BE CONSIDERED FOR USE TO PREVENT SOIL MIGRATION INTO VARYING SOIL TYPES (PROJECT ENGINEER). a FOR MULTIPLE BARREL INSTALLATIONS THE RECOMMENDED STANDARD SPACING BETWEEN PARALLEL PIPE RUNS SHALL BE PIPE DIA.2 BUT NO LESS THAN 12', OR 36" FOR PIPE DIAMETERS 72" AND LARGER. a CONTACTYOUR CONTECH REPRESENTATIVE FOR NONSTANDARD SPACING (TABLE C12.6.7-1). TYPICAL BACKFILL DETAIL NOT TO SCALE WATERSHED SUMMARY FOR OUTFALL PIPE ANALYSIS CN Area, ac. 1-year Flow, ds 2-year Flow, 10-year Flow, ON DA A (Post-ReDev.) 87 0.55 0.24 0.83 2.01 Existing Parking Lot Drainage 98 1.74 7.55 9.30 14.42 Total Design Storm Year = 10 7.79 10.13 16.43 ( IN FEET ) 1 inch 10 ft. NOTE: WEIR PLATE TO BE BOLTED & SEALED TO DETENTION SYSTEM WITH WATERTIGHT CONNECTIONS. MANUFACTURE / INSTALL ONE (i) OVERFLOW WEIR (EQUIVALENT DIAMETER=zo.95") ACROSS THE STEEL PLATE (INVERT ELEVATION 347.66) MANUFACTURE/ INSTALL ONE 06"X7'MID-FLOW ORIFICE IN THE STEEL PLATE (INVERT ELEVATION 346-33 ) INSTALL TRASH RACKS ON ALLY ORIFICES, TYP. SEE THIS SHEET FOR DETAIL, OR EQUIVALENT. MANUFACTURE / INSTALL ONE(,) 0134 " LOW -FLOW ORIFICE IN THE STEEL PLATE AT THE LOW POINT OF THE DETENTION SYSTEM (INVERT ELEVATION=344.00') LPIPE O--I PLAN FRONT 4B'Oto 9O'O FITTING REINFORCEMENT MAY BE REQUIRED BASED ON HEIGHT OF COVER AND LIVE LOAD CONDITION TYPICAL MANWAY DETAIL NOT TO SCALE PONT DOWNSTREAM DRAW RUNOFF CA INLET RAIN RUNOFF INVERT LENGTH SLOPE CIA CAPA- VEL FLOW REMARKS STRUCTURE AREA COEFP. NCR ACCUM TIME PAIL Q EIEVATIONS CITY TIME ACRES C MN MN C.FS. UPPER LOWER FEET FT./FT. INCHES C.F.S. F.P.S. SEC UGD 0.00 0.90 0.00 0.49 6.70 6.15 2.0 FROM UGD ROUTING STRI 343.92 343.67 27.14 0.0067 15 5.7 4.2 6.4 STRI 0.00 0.90 0.00 2.06 6.80 6.12 16.4 OUT 343.45 338.00 82.63 0.0660 18 29.2 16.9 4.9 WEIR PLATE DETAIL SCALE:1"=5' NFORCED 12 GA. STEEL PLATE ELEV.=348.00' (TOP OF PIPE) 0 ELEV.=344.00' (BOTTOM OF PIPE) NOTE: THE EXISTING CONCRETE PIPE CAN ACCOMMODATE THE VELOCITY OF WATER IN THE PIPE UP TO 20 F.P.S. THE FLOWS WITHIN THE PIPE SYSTEM IS 16.9 F.P.S. WHICH IS WITHIN THE ALLOWABLE FLOW OF THE CONCRETE PIPE. Cli r4 r4 LU ¢ CD CD CD p CD N M ti C3 W N �O�•{� VJ N w \N Lu O ZJ Q U W ' Y W in AM Q Ln J Lu �1 LL Z uj uJ z w W l7 U Q a z � pLp'�L w LL Q ,O^ 5� V / N` I L Class O Ln z <^ H- U F W 11J 0 w d U) JOB NO. 112066 SCALE AS SHOWN SHEET NO. 7 0+00 0+50 1+00 1+So 2+00 2+50 STR-7 - STR-1 PROFILE 1/2" zinc plated hook attached wroth 3/8 fastener 2-1/a" ma. Hale. Isometric p,pr 1//- HDPE Plata (optional) «: "wvert .r'tt HDPH 'holes al plastic tat, O 2-1/8" holes and 1 la plate OOmlution to Inc.by Plastic _ Solutions ". or equal Sec Lion 1. Rthe hale angleticeavPi ElevaLion I.gi • eLam tdN optional plate EnPF atnml.vrel pleat" .un 2-1/8" holes and 1/4" plate manufactured by Plastic Solutions Inc or equal PLASTIC SOLUTIONS P.O Pox 4:186 DEBRIS CAGE W...,e, �1504 INC. 877-877-5727 UNDERGROUND DETENTION SYSTEM MINIMUM TRENCH & BACKFILL REQUIREMENTS: 1. THE TRENCH CONTAINING THE DOUBLE RUN OF 48" CMP STORM PIPE SHALL HAVE A 168" WIDE TRENCH. THE TRENCHES CONTAINING THE 12" BYPASS HOPE PIPE AND THE 15" OUTFALL PIPE SHALL HAVE 36" WIDE TRENCHES. CONTRACTOR SHALL WRAP THE EXCAVATED TRENCHES WITH A 6 OUNCE FILTER FABRIC CLOTH. A SUITABLE FOUNDATION SHALL BE BENEATH THE TRENCHES' FILTER FABRIC CLOTHS. 2. TRENCHES TO INCLUDE A 6" #57 STONE BED AT 95% COMPACTION BENEATH THE HP STORM PIPES. 3. TRENCHES SHALL BE BACKFILLED WITH #57 STONE AT 95% COMPACTION AND SHALL EXTEND A MINIMUM OF 6" VERTICALLY ABOVE THE CROWN OF THE STORM PIPES. 4. THE TOP OF THE #57 STONE SHALL BE COVERED WITH A 6 OUNCE FILTER FABRIC CLOTH, OVERLAPPING THE PREVIOUSLY INSTALLED CLOTH THAT SURROUNDS THE BOTTOM AND SIDES OF THE TRENCHES. 5. SUITABLE FILL REACHING THE FINISHED GRADES SHALL BE APPLIED ABOVE THE TOP LAYER'S FILTER CLOTH, MEETING MINIMUM PIPE MANUFACTURER'S REQUIREMENTS TO PREVENT FLOATATION AND ENSURE PIPE INTEGRITY IS MAINTAINED. 6. A MINIMUM COVER OF 12" IS REQUIRED ABOVE THE CROWN OF THE STORM PIPES. 7. SEE THE'TYPICAL BACKFILL DETAIL' ON THIS SHEET FOR ADDITIONAL UNDERGROUND DETENTION SYSTEM PIPE REQUIREMENTS. 335 NOTES: 1. ALL FILLTO BE PLACED AT95% COMPACTION. 2. MINIMUM 3.5' OF COVER MUST BE MAINTAINED OVER W/L. 3. MINIMUM OF i' OF VERTICAL SEPARATION FROM STORM SEWER & W/L AND 1.S' OF SEPARATION BETWEEN W/L & SANITARY SEWER MUST BE PROVIDED. NOTE: CLASS I BACKFILL MATERIAL SHALL BE CRUSHER RUN AGGREGATE SIZE NO. 25 OR 26, AGGREGATE BASE MATERIAL SIZE 21A OR 21B, FLOWABLE FILL, OR CRUSHED GLASS CONFORMING TO THE SIZE REQUIREMENTS FOR CRUSHER RUN AGGREGATE SIZE 25 AND 26, PER VDOT ROAD AND BRIDGE SPECIFICATIONS, z w 0 5a w w w a a 5 BEDDING 3 FOUNDATION 2 o� (ULic. OTT R. LLINS`CONTRACTOR SHALL CALL THE COUNTY INSPECTOR & "J No. 035791 noOti ENGINEERING DEPARTMENT 24-HOURS BEFORE ANY ANTICIPATED CONSTRUCTION ACTIVITIES FOR THE 03/03/22BMPs. THIS IS INCLUSIVE OF WHEN THEssto ND DETENTION SYSTEM SUBGRADE IS NAL / UNDERGROUND D / O READY FOR PIPE CONSTRUCTION, BUT BEFORE PROPOSED LOWER 015" / - STONE BEDDING IS INSTALLED. J UNDERGROUND DETENTION % I SYSTEM PRIMARY OUTFALL / PROPOSED ACCESS MH w/ STAIRS FOR INSPECTION & MAINTENANCE, TYP. / ACCESS MH TO BE LOCATED UPSTREAM / & DOWNSTREAM FROM RESTRICTIVE WEIR PLATE AND AT THE MIDPOINTS & / PROPOSED VARIABLE WIDTH PUBLIC / HIGH POINTS OF THE SYSTEM, AS / in SW&ACCESS EASEMENT SHOWN. z W In / DB. 111 ��G.cc _ V - - - - - -- z ACCESS MANHOLE (TYP.) /` 048" INV. Z 0LD 344.00' L O a . � '^ 048" INV. / _ in p cc 74 LF / V) o o 344.37" 0.57 0 a LU g Jo 0 z p p a / @ _ 74 LF @ / pa 0.5% / w 1- > 448" INV. Lu a z 448" INV. / � z _ _ _ 344. - _ 344.03' > --__ - - - - - - - - W RESTRICTIVE STEEL WEIR PLATE, AT LOW POINT, TO DRAIN PROPOSED ELEVATED 012' PIP / PARKING LOT TO SERVE AS THE SYSTEM. SEE DETAIL ON THIS SHEET. ALLOWS MORE SIGNIFICANT & ACCESS TO SWM FACILITY 1vk LESS FREQUENT STORM EVENTS TO SAFELY BYPASS THE UNDERGROUND DETENTION DETAIL: SCALE / UNDERGROUND DETENTION SYSTEM GRAPHIC SCALE 10 0 5 10 20 40 TRENCH CONDITION EMBANKMENT CONDITION FINAL BACKFILL N INITIAL BACKFILL -/ a N SITU\}< DIAMETER MIN. CORR. COVER PROFILE W-10" 12" 1 1/2"x 1/4' 12'-48" 12" 2 2/3"x 1/2' 54"-90" 12" 3" x 1", 5" x 1' 102'-144" D/8 3" x 1', 5" x 1' INITIAL FILL ENVELOPEV to BACKFILL REQUIREMENTS FOLLOW THE GUIDELINES OF AASHTO LRFD BRIDGE DESIGN (SEC 12) AND CONSTRUCTION (SEC 26) 1 MINIMUMTRENCH WIDTH MUSTALLOW ROOM FOR PROPER COMPACTION OF HAUNCH MATERIALS UNDER THE PIPE. THE MINIMUM TRENCH WIDTH (12.6.6.1): PIPE <_ 12': D+ is' PIPE> 12': 1.5D+12' 1a MINIMUM EMBANKMENT WIDTH (IN FEET) FOR INITIAL FILL ENVELOPE (12.6.6.2): PIPE <24': 3.OD PIPE 24" - 144': D +4'0" PIPE> 144': D+10'0' 2 THE FOUNDATION UNDER THE PIPE AND SIDE BACKFILL SHALL BE ADEQUATE TO SUPPORT THE LOADS ACTING UPON IT(26.5.2). 3 BEDDING MATERIAL SHALL BE A RELATIVELY LOOSE MATERIAL THAT IS ROUGHLY SHAPED TO FIT THE BOTTOM OF THE PIPE, AND A MINIMUM OF TWICE THE CORRUGATION DEPTH IN THICKNESS, WITH THE MAXIMUM PARTICLE SIZE OF ONE-HALF OF THE CORRUGATION DEPTH (26.3.8.1.26.5.3). 4 CORRUGATED STEEL PIPE(CSP/HEL-COR). 5 HAUNCH ZONE MATERIAL SHALL BE HAND SHOVELED OR SHOVEL SLICED INTO PLACE TO ALLOW FOR PROPER COMPACTION (26.5.4). 5a INITIAL BACKFILL FOR PIPE EMBEDMENTTO MEET AASHTOA-1,A-2 OR A3 CLASSIFICATION, ORAPPROVED EQUAL, COMPACTEDT090% STANDARD PROCTOR (T 99). MAXIMUM PARTICLE SIZE NOT TO EXCEED 3- (12.4.1.2). ALL LIFTS PLACED IN A CONTROLLED MANNER. IT IS RECOMMENDED THAT LIFTS NOT EXCEEDAN 8' UN COMPACTED LIFTHEIGHTTO PREVENTUNEVEN LOADING, AND THE LESSER OF M THE DIAMETER OR 24" AS THE MAXIMUM DIFFERENTIAL SIDE -TO -SIDE (26.5A). 6 INITIAL BACKFILL ABOVE PIPE MAY INCLUDE ROAD BASE MATERIAL (AND RIGID PAVEMENT IF APPLICABLE). SEE TABLE ABOVE. Oa TOTAL HEIGHTOF COMPACTED COVER FOR CONVENTIONAL HIGHWAY LOADS IS MEASURED FROM TOP OF PIPE TO BOTTOM OF FLEXIBLE PAVEMENT OR TOP OF RIGID PAVEMENT (12.6.8.3). 7 FINAL BACKFILL MATERIAL SELECTION AND COMPACTION REQUIREMENTS SHALL FOLLOW THE PROJECT PLANS AND SPECIFICATIONS PER TH E ENGIN EER OF RECORD (265.4.1). NOTES: a GEOTE)MLE SHOULD BE CONSIDERED FOR USE TO PREVENT SOIL MIGRATION INTO VARYING SOIL TYPES (PROJECT ENGINEER). a FOR MULTIPLE BARREL INSTALLATIONS THE RECOMMENDED STANDARD SPACING BETWEEN PARALLEL PIPE RUNS SHALL BE PIPE DIA.2 BUT NO LESS THAN 12', OR 36" FOR PIPE DIAMETERS 72" AND LARGER. a CONTACTYOUR CONTECH REPRESENTATIVE FOR NONSTANDARD SPACING (TABLE C12.6.7-1). TYPICAL BACKFILL DETAIL NOT TO SCALE WATERSHED SUMMARY FOR OUTFALL PIPE ANALYSIS CN Area, ac. 1-year Flow, ds 2-year Flow, 10-year Flow, ON DA A (Post-ReDev.) 87 0.55 0.24 0.83 2.01 Existing Parking Lot Drainage 98 1.74 7.55 9.30 14.42 Total Design Storm Year = 10 7.79 10.13 16.43 ( IN FEET ) 1 inch 10 ft. NOTE: WEIR PLATE TO BE BOLTED & SEALED TO DETENTION SYSTEM WITH WATERTIGHT CONNECTIONS. MANUFACTURE / INSTALL ONE (i) OVERFLOW WEIR (EQUIVALENT DIAMETER=zo.95") ACROSS THE STEEL PLATE (INVERT ELEVATION 347.66) MANUFACTURE/ INSTALL ONE 06"X7'MID-FLOW ORIFICE IN THE STEEL PLATE (INVERT ELEVATION 346-33 ) INSTALL TRASH RACKS ON ALLY ORIFICES, TYP. SEE THIS SHEET FOR DETAIL, OR EQUIVALENT. MANUFACTURE / INSTALL ONE(,) 0134 " LOW -FLOW ORIFICE IN THE STEEL PLATE AT THE LOW POINT OF THE DETENTION SYSTEM (INVERT ELEVATION=344.00') LPIPE O--I PLAN FRONT 4B'Oto 9O'O FITTING REINFORCEMENT MAY BE REQUIRED BASED ON HEIGHT OF COVER AND LIVE LOAD CONDITION TYPICAL MANWAY DETAIL NOT TO SCALE PONT DOWNSTREAM DRAW RUNOFF CA INLET RAIN RUNOFF INVERT LENGTH SLOPE CIA CAPA- VEL FLOW REMARKS STRUCTURE AREA COEFP. NCR ACCUM TIME PAIL Q EIEVATIONS CITY TIME ACRES C MN MN C.FS. UPPER LOWER FEET FT./FT. INCHES C.F.S. F.P.S. SEC UGD 0.00 0.90 0.00 0.49 6.70 6.15 2.0 FROM UGD ROUTING STRI 343.92 343.67 27.14 0.0067 15 5.7 4.2 6.4 STRI 0.00 0.90 0.00 2.06 6.80 6.12 16.4 OUT 343.45 338.00 82.63 0.0660 18 29.2 16.9 4.9 WEIR PLATE DETAIL SCALE:1"=5' NFORCED 12 GA. STEEL PLATE ELEV.=348.00' (TOP OF PIPE) 0 ELEV.=344.00' (BOTTOM OF PIPE) NOTE: THE EXISTING CONCRETE PIPE CAN ACCOMMODATE THE VELOCITY OF WATER IN THE PIPE UP TO 20 F.P.S. THE FLOWS WITHIN THE PIPE SYSTEM IS 16.9 F.P.S. WHICH IS WITHIN THE ALLOWABLE FLOW OF THE CONCRETE PIPE. Cli r4 r4 LU ¢ CD CD CD p CD N M ti C3 W N �O�•{� VJ N w \N Lu O ZJ Q U W ' Y W in AM Q Ln J Lu �1 LL Z uj uJ z w W l7 U Q a z � pLp'�L w LL Q ,O^ 5� V / N` I L Class O Ln z <^ H- U F W 11J 0 w d U) JOB NO. 112066 SCALE AS SHOWN SHEET NO. 7 INITIAL FILL ENVELOPEV to BACKFILL REQUIREMENTS FOLLOW THE GUIDELINES OF AASHTO LRFD BRIDGE DESIGN (SEC 12) AND CONSTRUCTION (SEC 26) 1 MINIMUMTRENCH WIDTH MUSTALLOW ROOM FOR PROPER COMPACTION OF HAUNCH MATERIALS UNDER THE PIPE. THE MINIMUM TRENCH WIDTH (12.6.6.1): PIPE <_ 12': D+ is' PIPE> 12': 1.5D+12' 1a MINIMUM EMBANKMENT WIDTH (IN FEET) FOR INITIAL FILL ENVELOPE (12.6.6.2): PIPE <24': 3.OD PIPE 24" - 144': D +4'0" PIPE> 144': D+10'0' 2 THE FOUNDATION UNDER THE PIPE AND SIDE BACKFILL SHALL BE ADEQUATE TO SUPPORT THE LOADS ACTING UPON IT(26.5.2). 3 BEDDING MATERIAL SHALL BE A RELATIVELY LOOSE MATERIAL THAT IS ROUGHLY SHAPED TO FIT THE BOTTOM OF THE PIPE, AND A MINIMUM OF TWICE THE CORRUGATION DEPTH IN THICKNESS, WITH THE MAXIMUM PARTICLE SIZE OF ONE-HALF OF THE CORRUGATION DEPTH (26.3.8.1.26.5.3). 4 CORRUGATED STEEL PIPE(CSP/HEL-COR). 5 HAUNCH ZONE MATERIAL SHALL BE HAND SHOVELED OR SHOVEL SLICED INTO PLACE TO ALLOW FOR PROPER COMPACTION (26.5.4). 5a INITIAL BACKFILL FOR PIPE EMBEDMENTTO MEET AASHTOA-1,A-2 OR A3 CLASSIFICATION, ORAPPROVED EQUAL, COMPACTEDT090% STANDARD PROCTOR (T 99). MAXIMUM PARTICLE SIZE NOT TO EXCEED 3- (12.4.1.2). ALL LIFTS PLACED IN A CONTROLLED MANNER. IT IS RECOMMENDED THAT LIFTS NOT EXCEEDAN 8' UN COMPACTED LIFTHEIGHTTO PREVENTUNEVEN LOADING, AND THE LESSER OF M THE DIAMETER OR 24" AS THE MAXIMUM DIFFERENTIAL SIDE -TO -SIDE (26.5A). 6 INITIAL BACKFILL ABOVE PIPE MAY INCLUDE ROAD BASE MATERIAL (AND RIGID PAVEMENT IF APPLICABLE). SEE TABLE ABOVE. Oa TOTAL HEIGHTOF COMPACTED COVER FOR CONVENTIONAL HIGHWAY LOADS IS MEASURED FROM TOP OF PIPE TO BOTTOM OF FLEXIBLE PAVEMENT OR TOP OF RIGID PAVEMENT (12.6.8.3). 7 FINAL BACKFILL MATERIAL SELECTION AND COMPACTION REQUIREMENTS SHALL FOLLOW THE PROJECT PLANS AND SPECIFICATIONS PER TH E ENGIN EER OF RECORD (265.4.1). NOTES: a GEOTE)MLE SHOULD BE CONSIDERED FOR USE TO PREVENT SOIL MIGRATION INTO VARYING SOIL TYPES (PROJECT ENGINEER). a FOR MULTIPLE BARREL INSTALLATIONS THE RECOMMENDED STANDARD SPACING BETWEEN PARALLEL PIPE RUNS SHALL BE PIPE DIA.2 BUT NO LESS THAN 12', OR 36" FOR PIPE DIAMETERS 72" AND LARGER. a CONTACTYOUR CONTECH REPRESENTATIVE FOR NONSTANDARD SPACING (TABLE C12.6.7-1). TYPICAL BACKFILL DETAIL NOT TO SCALE WATERSHED SUMMARY FOR OUTFALL PIPE ANALYSIS CN Area, ac. 1-year Flow, ds 2-year Flow, 10-year Flow, ON DA A (Post-ReDev.) 87 0.55 0.24 0.83 2.01 Existing Parking Lot Drainage 98 1.74 7.55 9.30 14.42 Total Design Storm Year = 10 7.79 10.13 16.43 ( IN FEET ) 1 inch 10 ft. NOTE: WEIR PLATE TO BE BOLTED & SEALED TO DETENTION SYSTEM WITH WATERTIGHT CONNECTIONS. MANUFACTURE / INSTALL ONE (i) OVERFLOW WEIR (EQUIVALENT DIAMETER=zo.95") ACROSS THE STEEL PLATE (INVERT ELEVATION 347.66) MANUFACTURE/ INSTALL ONE 06"X7'MID-FLOW ORIFICE IN THE STEEL PLATE (INVERT ELEVATION 346-33 ) INSTALL TRASH RACKS ON ALLY ORIFICES, TYP. SEE THIS SHEET FOR DETAIL, OR EQUIVALENT. MANUFACTURE / INSTALL ONE(,) 0134 " LOW -FLOW ORIFICE IN THE STEEL PLATE AT THE LOW POINT OF THE DETENTION SYSTEM (INVERT ELEVATION=344.00') LPIPE O--I PLAN FRONT 4B'Oto 9O'O FITTING REINFORCEMENT MAY BE REQUIRED BASED ON HEIGHT OF COVER AND LIVE LOAD CONDITION TYPICAL MANWAY DETAIL NOT TO SCALE PONT DOWNSTREAM DRAW RUNOFF CA INLET RAIN RUNOFF INVERT LENGTH SLOPE CIA CAPA- VEL FLOW REMARKS STRUCTURE AREA COEFP. NCR ACCUM TIME PAIL Q EIEVATIONS CITY TIME ACRES C MN MN C.FS. UPPER LOWER FEET FT./FT. INCHES C.F.S. F.P.S. SEC UGD 0.00 0.90 0.00 0.49 6.70 6.15 2.0 FROM UGD ROUTING STRI 343.92 343.67 27.14 0.0067 15 5.7 4.2 6.4 STRI 0.00 0.90 0.00 2.06 6.80 6.12 16.4 OUT 343.45 338.00 82.63 0.0660 18 29.2 16.9 4.9 WEIR PLATE DETAIL SCALE:1"=5' NFORCED 12 GA. STEEL PLATE ELEV.=348.00' (TOP OF PIPE) 0 ELEV.=344.00' (BOTTOM OF PIPE) NOTE: THE EXISTING CONCRETE PIPE CAN ACCOMMODATE THE VELOCITY OF WATER IN THE PIPE UP TO 20 F.P.S. THE FLOWS WITHIN THE PIPE SYSTEM IS 16.9 F.P.S. WHICH IS WITHIN THE ALLOWABLE FLOW OF THE CONCRETE PIPE. Cli r4 r4 LU ¢ CD CD CD p CD N M ti C3 W N �O�•{� VJ N w \N Lu O ZJ Q U W ' Y W in AM Q Ln J Lu �1 LL Z uj uJ z w W l7 U Q a z � pLp'�L w LL Q ,O^ 5� V / N` I L Class O Ln z <^ H- U F W 11J 0 w d U) JOB NO. 112066 SCALE AS SHOWN SHEET NO. 7 Total Design Storm Year = 10 7.79 10.13 16.43 ( IN FEET ) 1 inch 10 ft. NOTE: WEIR PLATE TO BE BOLTED & SEALED TO DETENTION SYSTEM WITH WATERTIGHT CONNECTIONS. MANUFACTURE / INSTALL ONE (i) OVERFLOW WEIR (EQUIVALENT DIAMETER=zo.95") ACROSS THE STEEL PLATE (INVERT ELEVATION 347.66) MANUFACTURE/ INSTALL ONE 06"X7'MID-FLOW ORIFICE IN THE STEEL PLATE (INVERT ELEVATION 346-33 ) INSTALL TRASH RACKS ON ALLY ORIFICES, TYP. SEE THIS SHEET FOR DETAIL, OR EQUIVALENT. MANUFACTURE / INSTALL ONE(,) 0134 " LOW -FLOW ORIFICE IN THE STEEL PLATE AT THE LOW POINT OF THE DETENTION SYSTEM (INVERT ELEVATION=344.00') LPIPE O--I PLAN FRONT 4B'Oto 9O'O FITTING REINFORCEMENT MAY BE REQUIRED BASED ON HEIGHT OF COVER AND LIVE LOAD CONDITION TYPICAL MANWAY DETAIL NOT TO SCALE PONT DOWNSTREAM DRAW RUNOFF CA INLET RAIN RUNOFF INVERT LENGTH SLOPE CIA CAPA- VEL FLOW REMARKS STRUCTURE AREA COEFP. NCR ACCUM TIME PAIL Q EIEVATIONS CITY TIME ACRES C MN MN C.FS. UPPER LOWER FEET FT./FT. INCHES C.F.S. F.P.S. SEC UGD 0.00 0.90 0.00 0.49 6.70 6.15 2.0 FROM UGD ROUTING STRI 343.92 343.67 27.14 0.0067 15 5.7 4.2 6.4 STRI 0.00 0.90 0.00 2.06 6.80 6.12 16.4 OUT 343.45 338.00 82.63 0.0660 18 29.2 16.9 4.9 WEIR PLATE DETAIL SCALE:1"=5' NFORCED 12 GA. STEEL PLATE ELEV.=348.00' (TOP OF PIPE) 0 ELEV.=344.00' (BOTTOM OF PIPE) NOTE: THE EXISTING CONCRETE PIPE CAN ACCOMMODATE THE VELOCITY OF WATER IN THE PIPE UP TO 20 F.P.S. THE FLOWS WITHIN THE PIPE SYSTEM IS 16.9 F.P.S. WHICH IS WITHIN THE ALLOWABLE FLOW OF THE CONCRETE PIPE. Cli r4 r4 LU ¢ CD CD CD p CD N M ti C3 W N �O�•{� VJ N w \N Lu O ZJ Q U W ' Y W in AM Q Ln J Lu �1 LL Z uj uJ z w W l7 U Q a z � pLp'�L w LL Q ,O^ 5� V / N` I L Class O Ln z <^ H- U F W 11J 0 w d U) JOB NO. 112066 SCALE AS SHOWN SHEET NO. 7 WEIR PLATE DETAIL SCALE:1"=5' NFORCED 12 GA. STEEL PLATE ELEV.=348.00' (TOP OF PIPE) 0 ELEV.=344.00' (BOTTOM OF PIPE) NOTE: THE EXISTING CONCRETE PIPE CAN ACCOMMODATE THE VELOCITY OF WATER IN THE PIPE UP TO 20 F.P.S. THE FLOWS WITHIN THE PIPE SYSTEM IS 16.9 F.P.S. WHICH IS WITHIN THE ALLOWABLE FLOW OF THE CONCRETE PIPE. Cli r4 r4 LU ¢ CD CD CD p CD N M ti C3 W N �O�•{� VJ N w \N Lu O ZJ Q U W ' Y W in AM Q Ln J Lu �1 LL Z uj uJ z w W l7 U Q a z � pLp'�L w LL Q ,O^ 5� V / N` I L Class O Ln z <^ H- U F W 11J 0 w d U) JOB NO. 112066 SCALE AS SHOWN SHEET NO. 7 TEMPORARY COVER FOR CONSTRUCTION LOADS HEIGHT OF COVER CONSTRUCTION LOADS FINISHED GRADE FOR TEMPORARY CONSTRUCTION VEHICLE LOADS, AN EXTRAAMOUNT OF COMPACTED COVER MAY BE REQUIRED OVER THE TOP OF THE PIPE. THE HEIGHT -OF -COVER SHALL MEET THE MINIMUM REQUIREMENTS SHOWN IN THE TABLE BELOW. THE USE OF HEAVY CONSTRUCTION EQUIPMENT NECESSITATES GREATER PROTECTION FOR THE PIPE THAN FINISHED GRADE COVER MINIMUMS FOR NORMAL HIGHWAY TRAFFIC. AXLE LOADS PIPE SPAN, INCHES (kips) 18-50 1 50-75 1 75-110 1 110-150 MINIMUM COVER (FT) 2.0 2.5 3.0 3.0 12-42 48-72 3.0 3.0 3.5 4.0 78-120 3.0 3.5 4.0 4.0 126-144 3.5 4.0 4.5 4.5 'MINIMUM COVER MAYVARY, DEPENDING ON LOCAL CONDITIONS. THE CONTRACTOR MUST PROVIDE THE ADDITIONAL COVER REQUIRED TO AVOID DAMAGE TO THE PIPE. MINIMUM COVER IS MEASURED FROM THE TOP OF THE PIPE TO THE TOP OF THE MAINTAINED CONSTRUCTION ROADWAY SURFACE. CONSTRUCTION LOADING DIAGRAM NOT TO SCALE SPECIFICATION FOR CORRUGATED STEEL PIPE -ALUMINIZED TYPE 2 STEEL A 36"0 MAX., HS-25 ACCESS CASTING WITH GRADE RINGS AS REQUIRED, TO BE PROVIDED AND INSTALLED BY CONTRACTOR. MAYBE TOP MOUNTED CMP PROTECTION (AS SHOWN) OR RECESSED RIM/FINISHED SLAB ___ __ GRADE _ _ _� VARIES v ]} }� _ a d1 i GASKET MATERIAL / 0CMP,RISER SUFFICIENTTO PRE\ ENT a r. SLAB FROM BEARING ON w RISER TO BE PROVIDED BY CONTRACTOR. 01311"TYP. f9 SCOPE HANDLING AND ASSEMBLY THIS SPECIFICATION COVERS THE MANUFACTURE AND SHALL BE IN ACCORDANCE WITH RECOMMENDATIONS OF THE INSTALLATION OF THE CORRUGATED STEEL PIPE (CSP) DETAILED IN NATIONAL CORRUGATED STEEL PIPE ASSOCIATION (NCSPA) THE PROJECT PLANS. INSTALLATION MATERIAL SECTION VIEW ACCESS CASTING NOT SUPPLIED BY CONTECH d p A /�ApL B #4 DIAGONAL TRIM BAR (TYP. 4 PLACES), SEE NOTE 7. OPENING IN PROTECTION SLAB FOR ACCESS SHALL BE IN ACCORDANCE WITH AASHTO STANDARD THE ALUMINIZED TYPE 2 STEEL COILS SHALL CONFORM TOTHE SPECIFICATIONS FOR HIGHWAY BRIDGES, SECTION 26, DIVISION II APPLICABLE REQUIREMENTS OF AASHTC M274 OR ASTM A929. OR ASTM A798 AND IN CONFORMANCE WITH THE PROJECT PLANS AND SPECIFICATIONS. IF THERE ARE ANY INCONSISTENCIES OR PIPE CONFLICTS THE CONTRACTOR SHOULD DISCUSS AND RESOLVE WITH THE SITE ENGINEER. THE CSP SHALL BE MANUFACTURED IN ACCORDANCE WITH THE APPLICABLE REQUIREMENTS OF AASHTC M36 OR ASTM A760. THE IT IS ALWAYS THE RESPONSIBILITY OF THE CONTRACTOR TO PIPE SIZES, GAGES AND CORRUGATIONS SHALL BE AS SHOWN ON FOLLOW OSHA GUIDELINES FOR SAFE PRACTICES. THE PROJECT PLANS. ALL FABRICATION OF THE PRODUCT SHALL OCCUR WITHIN THE UNITED STATES. MATERIAL SPECIFICATION NOT TO SCALE 2Yz" 3/" (#6) REBAR CAN BE CUT FLUSH TO OUTSIDE OF RAIL (BAR LENGTH = 16Y4") OR BAR CAN 9 EXTEND BEYOND RAILY2"t - T., \ 3/8' I� 12" TYP. CENTER TO CENTER RUNG SPACING - 71 i r INTERRUPTED BAR REPLACEMENT, SEE NOTE6. ALL STEEL PER ASTM A36 BRICATION TOLERANCE: ty" 4T BAR AND REBAR: MILL �LERANCE APPLIES HOLE w/ %" REBAR RUNG, WELD REBAR TO RUNG ON OUTSIDE OF STEEL RAIL 2Y2' x e" FLAT BAR SIDE RAIL PLAN SIDE NOTES: 1. LADDERS CAN BE MADE IN 20'-0' STANDARD LENGTHS AND CUT TO FIT 2. ALL MATERIAL TO MEET ASTM A36 3. LADDER TO BE HOT DIPPED GALVANIZED PER ASTM A-123 AFTER FABRICATION IS COMPLETE STANDARD LADDER DETAIL NOT TO SCALE PART NO. HALAGVL16 PROVIDE MINIMUM OF 4ATTACHMENT ANGLES (2 ON EITHER SIDE OF LADDER RAIL) TO CONNECT LADDER TO RISER EXTENSION RISER w/ LADDER AND STEPS IF EXTENSION IS REQUIRED RISER w/ LADDER AND STEPS LS" x 3" x y" x 16" LONG AT t-0" SPACING. LONG LEG TO PROJECT OUT. WELD TOP MAIN LINE CMP / 1AND BOTTOM OF3"LEG TO EACH 2�/x,5x1,3x1,ETC. MCORRUGATION j7- CREST (THESE ANGLES SHOULD BE USED FOR LARGER DIAMETER MAINLINES WH ERE ADDITIONAL STEPS ARE NEEDED) NOTE: THIS DRAWING IS INTENDED TOAPPLYTO LADDERS INSTALLED IN RISERS HAVINGA DIAMETER OF 30' OR LARGER. DUE TO SPACE CONSTRAINTS AND LIMITED ACCESSIBILITY, THE PRACTICALITY AND SUITABILITY OF UTILIZING RISERS SMALLER THAN 30" DIAMETER AND/OR INCORPORATING LADDERS IN THESE SMALLER DIAMETER RISERS SHOULD BE ADDRESSED BYTHE OV1N ER AN D PROJECT ENGINEER #4 DIAGONAL TRIM BAR (TYP.4 PLACES), SEE NOTE 7. ** - 2" COVER (TYP) I tL---1 REINFORCING TABLE "BEARING QJ CMP A B 0 REINFORCING PRESSURE RISER (PSF) 24 4'0 26 #5 @ 10" OCEW 2,540 4'x4' #5 @ 10" OCEW 1,900 30 4'-6"0 32 #5 @ 10" OCEW 2,260 4'-6" x 4'-6" #5 @ 9" OCEW 1,670 3fi" 510 38 #5 @ 9" OCEW 2,060 5' x 5' #5 @ 8" OCEW 1,500 42" 5'-6"0 44 #5 @ 8" OCEW 1,490 5'-6" x 5'-6" #5 @ 8" OCEW 1,370 48" TO 50 #5 @ 7" OCEW 1,210 6x 6' #5 @ 7" OCEW 1,270 G I II i � II I L--�T---- T(-----J r----yt ---f -_�---tt-----� I II r II I I z-\ \ 1 �f 1 1 ./I, i OPENING IN d /_1 l� PROTECTION -- ---�-� '--i ---- SLAB I AC EBS I I - -- p i j l I ` I STANDARD STANDARD REINFORCING, REINFORCING, SEE TABLE SEE TABLE ROUND OPTION PLAN VIEW NOTES: 1. DESIGN IN ACCORDANCE WITH AASHTO, 17th EDITION AND AC 1350. 2. DESIGN LOAD HS25. 3. EARTH COVER = V MAX. 4. CONCRETE STRENGTH =4,000 psi 5. REINFORCING STEEL= ASTM A615, GRADE 60. 6. PROVIDE ADDITIONAL REINFORCING AROUND OPENINGS EQUALTOTHE BARS INTERRUPTED, HALF EACH SIDE. ADDITIONAL BARS TO BE IN THE SAME PLANE. 'NOTE: WHEN RISER EXTENSIONS ARE USED, THE PLANT SHOULD CUT 3" FROM THE SIDE RAILS AS SHOWN "3" FROM BOTTOM OF LADDER RAIL IL ORISER JOINT '3" FROM TOP OF LADDER RAIL TO RISER JOINT LADDER RAILS AND RUNGS (2)Y4' FILLET WELDS 1' LONG ATTACH MENT ANC MINIMUM OF 4 ANGLES P LADDER SECTION, (2 EACH SIDE LADDER) 6' MAX. SPACI VERTICAL 6" FROM RUNGTO RISER JOINT 6' FROM RUNG TO RISER JOINT SECTION A -A RISER LADDER DETAIL NOT TO SCALE RISER NORMALLYCMP WITH 2%" x%" CORRUGATIONS WY16" FILLET WELDS FROM EACH ANGLE TO CORRUGATION CREST (2 WELD EACH SIDE) L3'x3"x3/s 5Yz LONG I fA I 11 . i I1 ll II I L .� i 111 I It-t-- I �I 11 II ,i�` I II INTERRUPTED BAR REPLACEMENT, I-.--1�___� ____E-L____J II II / /I I I I II II I I I I SEE NOTE 6. OB SQUARE OPTION PLAN VIEW 7. TRIM OPENING WITH DIAGONAL#4 BARS, EXTEND BARS MINIMUM OF 12" BEYOND OPENING, BEND BARS AS REQUIRED TO MAINTAIN BAR COVER. 8. PROTECTION SLAB AND ALL MATERIALS TO BE PROVIDED AND INSTALLED BY CONTRACTOR. 9. DETAIL DESIGN BY DELTA ENGINEERS, ARCHITECTS AND LAND SURVEYORS, ENDWELL, NY. MANHOLE CAP DETAIL NOT TO SCALE (4)y6" FILLET WELDS FROM EACH ANGLE CORRUG4 CREST (2 WELDS EACH (4)L3"x3"x�/16' 5}'p" LONG (2) Y4' FILLET WELD! 1" LONG FROM EACH ANGLE TO LADDER RAIL LADDER RAILS PLAN RI: -A (4)y6' FILLET WELDS FROM EACH ANGLE TO CORRUGATION CREST (2 WELDS EACH SIDE) L3'x3"xNG SY2 LONG _rt ELEVATION LADDER Ri AND RUNG CUT/FILL QUANTITIES VOLUME OF CUT FOR LIMITS OF DISTURBANCE: 1,3.00 CU. YARD VOLUME OF FILL FOR LIMITS OF DISTURBANCE: 3.00 CU. YARD NET VOLUME OF CUT FOR LIMITS OF DISTURBANCE: 1,000 CU. YARD 6" OF TOPSOIL SHALL BE HAULED OFFSITE TO A PERMITTED (SWPPP) SITE AS EXPLAINED IN EACH PHASE NARRATIVE AND REITERATED HERE, PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 3o DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. SCOTT/R. C$LLINS'Z Lic. No. 0357911n 12/06/21 F z w O ZZ O iY w O u o a U to Ln u z 0 Z o p U) a WLu w Lu w N 00 o o 04 W N O N N Z Lu J J_ 0 0 Lu 0 ZJ Q U W ' Y H T W, Z Lu e U) u Q Ln J Q V/ \ / uj �1 LL LU w z w Lu �7 U Q a z 2 1--1 0:f w � Q V / LL O Ln z Q H- U F w 11J O w x a � JOB NO. 112066 SCALE AS SHOWN