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HomeMy WebLinkAboutWPO202100057 Plan - VSMP 2021-12-13---------------------- -------------------- 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 / O LP = LIGHT POLE , , PROPOSED MAJOR SITE PLAN AMENDMENT - / CAR WASH BUILDING & FLEET PARKING LOT FOR ' ENTERPRISE RENT -A -CAR ROSES STORE TMP 78-17G2 LOR #2 (SDP-1998-118) ADD LOADING DOCK & RAMP TO EXISTING LOR #1 (SDP-1998-118) / LOADING DOCK, RAMP, & CANOPY FOR ROSES N.F. \ BUILDING \ OOC 10 O / a0 0 �MH A N.F. `a +1 PANTOPS SHOPPING CENTER VSMP PLAN (WP02021 - 00057) RIVANNA MAGISTERIAL DISTRICT - ALBEMARLE COUNTY. VIRGINIA - 1. F. O1 PP WM N PROJECT AREA =29,880SF ♦ _T *�2734•02„ E o v v FP'_-___ PP 256 FH _ _ _ _ 20_ SAN. SEW. E P P 1. F. / O 6 \ \ S / SS• \ / 3 v R \\\ \ SS 00�\\ -0, ti RO /RO \\ \\ O 0,o \ .0- , \\ 2O, WPZEREINE � � \\ �\ \ TMP 78-17G2 \ \\ OR #3 (SDP-1998-118' ADD FIVE LIGHT POLES AND FIXTURES \\ �7g \ LOR #3 (SDP-1998-118 ADD FIVE LIGHT POLES AND FIXTURES S9• ° M H R \ /8401 0op ,3 / LOR #1 (SDP-1997-136) C8\�` \\\�F DECK FOR OUTDOOR \H\\p��Z RESTAURANTSEATING o \\� V F ) 1'a \ I.S. % LOR #2 (SDP-1997-136) INSTALLATION OF A MOBILE GENERATOR OMH •11 SHEET INDEX 304 312 320 TMP TMP 330 TITLE SHEET COVER SHEET 1 EXISTING CONDITIONS & DEMOLITION PLAN 2 77-41 78-17A 338 OVERALL GRADING PLAN 3 350 EROSION & SEDIMENT CONTROL PLAN AND DETAILS 4 EROSION & SEDIMENT CONTROL NARRATIVE AND DETAILS 6 368 STORMWATER MANAGEMENT PLAN 6 3762 STORMWATER MANAGEMENT DETAILS 7 380 STORMWATER MANAGEMENT DETAILS 8 384 —78-17A1 78-17B .-` 78-17D6 J 78-17D5 78iYDz �„ �,Z,TH p�.,h Panto 240 Ps-Ctr SCOTT R. LINS'Z 7a-17Da U Lie. No. 0357911a 140 �� 12/06/21 �Fc,�' O��'So. _ r aG\J TOTAL SHEETS 8 3 TMP 6 78-17D PROJECT AREA 570 TMP 78-17A TMP 78-17G2 L _ e�/c \ 2o- \ \ 33 - - Roo NEWHO USE ��--- DRIVE oMH�` _t—IIT CURB Z 1 PP /ROO o I 1 IS 76.20'4� " E \O I I 45.00 PP I.F. \\ \\ 1 11 • ' \\ \\ 1 1 coi �° F OI D AN MINOR AMENDMENT (SDP-2019-00061) MODIFICATIONS TO LAZY PARROT BLDG., PATIO AND PARKING LOT NOTES: CONTRACTOR SHALL VERIFY LOCATION AND ELEVATION OF ALL UNDERGROUND UTILITIES SHOWN ON PLANS IN AREAS OF CONSTRUCTION PRIOR TO STARTING WORK. CONTACT ENGINEER C7 �• \ \ IMMEDIATELY IF LOCATION OR ELEVATION IS DIFFERENT FROM \ THAT SHOWN ON THE PLANS, IF THERE APPEARS TO BE A \\ CONFLICT, AND UPON DISCOVERY OF ANY UTILITY NOT SHOWN ON THE PLANS. \ \ ` \\ 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 REPASHOUILDOBENOT IN ANCE WITH RENT STANDARDS PARTOF THIS PROJECTAS WELL. REPLACEDM ASPROJECT IN ADDITION, ANY EXISTING CG-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. 1 inch = 50 ft. 78-17D3 160 AL J /Jmj 588 594 596 598 536 540 400 532 520 / / `4C<� 201 P 420 - so4 VIC MAP - 78-17G 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 78-17G2) ROTGIN, CHARLES JR TR; SECOND AMENDED & RESTATED TRUST PO BOX 5526 CHARLOTTESVILLE, VA 22905 TAX MAP NO.: 07800-00-00-017D0(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: 30' 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 T TO 4' IN 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. H Z w ,w vJ E o U .. OE u u V 0 O U) 78-17G w p w Q w 100 � Z G Z o 0 .. a W c W N m N W N W J J 1) L1J 0 J w U Lu In D C. z LLu U U) 0 O 0 O N m_ a G 1 uj z w LU U�' v Lu > I-1 0 a- U 0 ,2 V / m 0 z w O w JOB NO.� 112066 SCALE AS NOTED SHEET NO. 1 / TMP 07800-00-00-017A / N/F TIRESUM LLC DB 4417 PG 283 / DB 2290 PG 421 (PLAT) I I i ® �/ / // 18 EX TMP 78-17A /// // / / / / // / / . // /%/'/ CF1 / 2 .9 / //// //�//�//i///////// / `� / GM // ®j� o __ -!gXISTING / / l �13LOCK .7h / PUILDING EXISTINGAI/B(rMV ARLE // ////// // //// j// / / //�/i// / /// j/ % COUNTY PSERVED SLOPES /®ii /////%// .9%j/ _/'EXISTING H DGES A/j//' TO BERE�OVED INV. 400'/ OUT=338.o //X/ �/ 40�22 �55 Z/ ®/�i / // / / // / / / / l B EXISTING STRUCTURE & /�//EX. MAIL/BOX �; CONCRETE SIDEWALK CU R RB 9 6�/ / / TO/BE I�ELCyCATED,� "u TO BE DEMOLISHED SEt SHEET 3 �� i / m E-XrSTING 40e/ //// /i / j / / p SIDEWALK TO CURB REMAIN BENCHMARK - TOP MH TMP 077Q0-00-00-04100 / / // / /// /�// %/�/ % // /J�1/2 / / �/ / / / / �D OP 354 39 COUNTYOFALBEMARLE/ / j//�////�//////// ////////� / / � / 18"RCP DB 2 72, PG.580 EXSfING 18" RCP STOR / \ OUT=348.69 BENCHMARK / / N 8 Z% / / / SEWER9N6 SUTFALL EXISTING 3 9 /� / a3. PIP / E-11 8i . 6 ////As/// � /� � � � TRAVELWAY R VED ELEV94 00 PARKING SIGNS DES 355 / /EXIIS�ING DAM / / _� / ,�,� OX) 1.% / / / m 3 / BREACH -INUNDATION /20NE HANDICAP a o A5x°� / / %% EXISTING THE LINE / \ a PARKING SIGNS z \ // / / / <, / EXISTING PORTION OF fING'/c / / / SIDEWALK AND CURBI G / G1DP / / / / / / % / d / / / / BE DEMOLISHED / zLyrf%/ BUS STOP SIGN � // Z/ p / _5 _ o �� i / °40'22� zo'WATERLINE 552i6 EASEMENT D13792PG435 F PROJECT LIMITS / F 29,88o SF (o.686ACRES) EXISTING / BLOCK / BUILDING NG OVERHEAD / POWER LINE 11 1 1 1 1 1 / F / TM 07800-00-00-017G2 / N/F CHARLES ROTGIN JR / DB 3880 PG 673 1 DB 1021 PG 410 (PLAT) 1 £ 1 1 1 1 1 f 1 1 11 GRAPHIC SCALE 1 1 20 0 10 20 40 80 `5 / ( IN FEET ) 1 inch = 20 ft. N.F. i o 20'SANITARY SEWER EASEMENT DB792 PG435 UP 1 / / N/F PANTOPS SHOPPING CENTER LLC l TM 07800-00-00-017D DB 2870 PG 643 1 DB 4692 PG 584 (PLAT) / 1 DB 1021 PG 410 (PLAT) / EXISTING PAVEMENTTO BE SAW CUT FOR UTILITY INSTALLATION. I / / 9 40,0 20' WATERLINE EASEMENT £ DB 792 PG 435 EXISTING CONCRETE CURB TO BE REMOVED / 1 / EXISTING CONCRETE £ STAIRS AND LANDING TO BE REMOVED 1 / 1 \ „W 2� 1 1 / —EXISTING PAVEMEI SAW CUT FOR UTIL INSTALLATION. 1 .t�//xlS I ING ACSA ;vATERLINE 1 SCOTT/R. Cbi.LINS'Z Lic. No. 0357911E a 12/06/21 ,Or1 z z w O V 0 V Ln w pLn O V (� z z . F � H 0 Ln z .. p p Q W >Lu j cc 1 � � • Q O O p O N TO BE M� rl EXISTING FIRE HYDRA FHA i s ' FFA 11 W W 7 ul z Cn ti M Cn N M N O 0-) N N Ld J U) LLJ U w Z) LLJ Lu 07 Lu C:) C:) N 0w0 c_ Ln JOB NO. 112066 SCALE 1"=20� 9 ' TMP 07800-00-00-017A PROPOSED RIPRAP / N/F TIRESUM LLC OUTFALL: L=7', W=5',D=2' / / / 20' SANITARY AREAS WITH SLOPE GREATER THAN 3:i. AREA TO DB 4417 PG 283 WITH GEO-FABRIC / c��cSEWER EASEMENT BE PLANTED WITH ILEX CORNUTA'DWARF BUFORD' DB 2290 PG 421(PLAT) UNDERLAYMENT / / �J / DB792 PG435 SHRUBS FOR STABILIZATION ON A 6'x6' GRID. ' UP / `�P/ 1 / / I / // //// �i i/// ®® / �/ ��® � / N/F PA TOPS S 0P0PING 0- 0CENTER LLC TIMP DB 2870 PG 643 I / /FIL�%PX�IfJ/ / // // �i i /� / / DB 4692 PG 584 (PLAT) I ���/�j /// // i �// O� FH • DB 1021 PG 410 (PLAT) TMP78-Y7A PROpOSEA/// £ /// / // /�// / / / /// / / / // / 20' WATERLINE / Z/ FFDC EASEMENT I / /// // /iD/fR� Cl / // / / -/ T -3 4.00 _ £ DB7gz PG435 ioo' STREAM // /// �// / EA. ROOF BUFFER I ) // ///// // // R/j 1 qE N9 / // ///i 12 B =3 1.00 . — //T`i3P-311T6//�/ � DOWNSPOUT TO REMAIN f GM EX O / // I2 DOWNSPOUTSTO II 0 j/ / // CONNECTTO s 7' /A// / / //// / /// / // / / // // �' OPOSED 6" ADS 5'�7 �'/H MAX. 0*61RFT� /'/ / / // // / / // / D N SYSTEM RE�TATNING.WAhL'W/,HAN RAY EXISTING ./////�/ j/// /////j / I BLOCK CONCRETEWAI�L'T6 TENEs6" / /// j/ /j % /j/ CROSS- y PR POSED 6" BUILDING / / j i ABOVE P VEJb1FN�T/F R // /� / // / / / j /j // SECTION C AD DRAIN PIPE �O�N ///// j// / /� //// L=5 S=o.6% 1 f TW=355.00 355.62 40'/ / /// / //// / // BW=350.0 COi ' FFE / / / PROPOSED / / // / /// // // / / ///// /// ///// / l CLEANOUT £ �FFE=3520 /5TOP=353-0 INV.= �. 350.00 1 �//� F��L�PL94N/ 4 20 D AINAGE /� / //�/ j// ��/ f 354 /INV. / //// EASEMENT 4001/ OUT=338.0 // �/ // 'DB. PG. EXISTING RIPRAP / / / / / / / i /��R9 ��/ /�� // :: �$ /• CROSS- OUTFACE -RIPRAP OVERGROWN ' / /j / / // // // / // //C0z /GiJARDR J / O / l SECTION B CUR \ \ \ m / / �/ CROP , AND SILTED UP. CONTRACTOR TO � / /j / �/// // / j // / / j //C EA, l3�Ti // i / ;/ / � /'./ pQ s a � IMPROVE RIPRAP OUTFALL TO / �// /// jS / / / /gyp i / j i PROPOSED 6" / PpC ALBEMARLE COUNTY PROPERTY / // @�$� �/ / - MB //�4D$9P�1N�IEE/ ��N�j 345° /. / D� ADS DRAIN �� F LINE // / i �/.'' TW=355.00 / o CURB 1. � / / // ✓•::' F / PROPOSED 18" 3 , S=i.O% CU / BW=351.0 GRATE INLET TOP=352.67 / ////�// // fi�i Awl .•': -�/-- 1�-- STR-i ; R INV.=34967 CURB PROPOSED 8" ADS DRAIN PIPE BENCHMARK -TOP L=i3.8' S=i.-" OFSDMH TMP 077QO-00-00-04100 /�,/ / /// / // / / / TOP=35439 COUNTYOF ALBEMARL/ / // / fit» �{ �.� 18" RCP 3 // // / / // / / ; OUT=348.69 BENCHMARK N_389 1 / /�/�:•SS �� ' E-i� 8i 6 R VED 494 7 4 / / // /SECTIONN ELEV- 00 �/ /� STR- / i /px \ PARKING SIGNS DES 355• / C/S€D(4?) SH� /-,, / 7 /.. .. / / V / u MUTA'DWARF / / STR- � �� � (3X) / F �fiQQEPLA Q �j/ /ON XC6%GR O�Vt / / l.• -. / "5I)2-3 / ( \ / / T E'��j'i$L/ �rl 0 I/ rj. _ HANDICAP / STA$NI / :.�.. / / PARKING SIGNS �// / / ,'. (4X) /d JLEj/� BUSSTOP SIGN/20'WATERUNE EASEMENT DB 792 PG 435 / PROPOSED VARIABLE WIDTH PUBLIC SWM FACILITY & ACCESS EASEMENT / s DB. . PG. o>EX. ROOF EXISTING / / DOWNSPOUT BLOCK / BUILDING TMP 07800-00-00-017G2 N/F CHARLES ROTGIN JR / DB 3880 PG 673 DB 1021 PG 410 (PLAT) 1 EX. ROOF DOWNSPOUT 1 1 1 1 1 � f 1 GRAPHIC SCALE 1 1 20 0 10 20 40 80 £ 1 � / IN 1 ( 1N FEET 1 inch = 20 ft. 1 w � � 1 N.F. w EX. ROOF w DOWNSPOUT 355 350 345 340 355 350 345 340 355 350 345 340 \ / / / / 71 / 3' PROPOSED J GRADE IL EX. GRADE LIMITS OF PRESERVED SLOPES 0+00 0+10 0+20 0+30 CROSS-SECTION A 355 350 345 340 0+40 0+50 N W w W ao PROPOSED PROPOSED a N In WALL GRADE J a 1 3.5' _ EX. GRAD 0+00 0+10 0+20 0+30 CROSS-SECTION B 0 W 0 355 350 345 340 0+40 0+50 VU) o_ PROPOSED uj o GRADE a PROPOSED J WALL d 2.5' — / EX. GRADE / 12.5 0+00 0+10 0+20 0+30 CROSS-SECTION C 355 350 345 340 0+40 0+50 6" HIGH TUBE — RAIL ALONG CONCRETE WALL c. c PROPOSED 10" CONC. WALL 0 Z p m w z 2 CL o 0- N J I U M N . O I U 1'-1" 10" 3" CLR 9 � 40 s0 _#57 STONE BACKFILL #4 BARS Q 12" (VERT) __� #4 @ 10" (HORIZ) 2" CLR #4 BARS @ 12" (DOWELS) #4 BARS ©12" #4 BARS © 12" (7)-#4 BARS a CONT 3" CLR CONCRETE WALL SECTION N.T.S SCOTT/R. Ct7LLIN' Lic. No. 035791 12/06/21 in in Z V/ w 0 0 z U 0 wO w Q V En w z 0 z o \H / w .. o LLJ cc o u/ I.f. > O C•M ® M m N M i N O N N > W J J > U) �n Cn W Lu U) O 0C:) N u w a V) JOB NO. 112066 SCALE 111=20� 3 EROSION CONTROL * VIRGINIA EROSION& SEDIMENT CONTROL HANDBOOK SPECIFICATION NUMBER PHASE I ESC PLAN: SCALE i"=30' O ti 02 SA o SAFETY FENCE 3.01 CE CONSTRUCTION ENTRANCE 3.02 DIVERSION / NOTE, R TOBE UTIXX LIZED ISSTHEOR THEE&S MEASUREORK ACROSS THE UTILITY WORK ACROSS THE EXISTING PAVED AREA TMP07800-00-00-017A OP#i / N/F TIRESUM LLC DB 4417 PG 283 L=7',W=61,D=2' SF�F � SILT FENCE 3.05 DB 2290 PG 421 (PLAT) WITH GEO-FABRIC UNDERLAYMENT tio� lP STORM DRAIN INLETPROTECTION 3.07 DD �1 TEMPORARYDIVERSIONDIKE 3.0g///� IS /; ///�AI ������ ��• MN W +-� TEMPORARYROWDIVERSION 3.11 RR RIPRAP 3.19 PROPOSED TS I TS TS TEMPORARVSEEDING 3.31 / / / I X ILTREXX RUNOFF PROPOSED LIMITS OF MP7s- 7A DIVERSION, SEE DISTURBANCE (0.59 ac. PS PS PERMANENTSEEDING 332 ( // /� SOIL TYPE +/+ _ DETAIL -SHEET S MU MU MULCHING 3.35 / I �XBDU�� ��(TY TPA TREEPROTECTION 3.38 106UFFER M OC DC DUST CONTROL 3.39 EBLOCKG 1 BUILDING NOTE: TREE PROTECTION SILT FENCE, SAFETY/// //////// / '� 1 355 62 FEN FFE SHALL,BE INSTALLED AT LIMITS OF DISTURBANCE. THSE ARE �F o PLAII OFFSET FOR GRAPHICAL LV PURPOSES. OP#z L=B' W=26' D=2' IINV. ADDITIONAL RIPRAP �oDT=338.° EXISTING ADDED TO THE ALBEMARLE O EXISTING RIPRAP COUNTY e PRESERVED SLOPES ��� i / PROPOSED TEMPORARY STOCKPILE' SURROUNDED BY SILT FENCE BENCHMARK -TOP OFSDMH TMP077-04100 COUNt OF AOLBEMARLE �� �� ,A/ � IP 18 RCP439 / DB 2,372, PG.580 /� // SF // /��j�// / S IL TYPE 825 / „v OUT=348.69 NE3 9HMARK / / / R VED E- 1494817.46 �// / / ELEV- .00 / // // ///IRE PARKING SIGNS 355 / fR DES - o SUBJECT WASH RACK o- IN- CE�HAEC E PROPERTY, TYP. // / / / / CE y2XT r C IO�ENTRAN YTHE Cb� MpWT AINED B THIS NOT :THIS OPERATEDIAND CTIONTRAFFKITRPNCE" I p1 L CONSTRv INSTACLEDI T LIZETHIS CONSjRUCT1QN E j SHTOR ' E / EXISTING / / / � / / / / 1 O / PREA A, 100-YEAR FEMA l� _ FLOODPLAIN / //�� ��� L/ /� '� BUSIGNCP i Q CONTRACTOR STAGING AREA o / i/ WITH FUELING TANK, DUMP ER, V AND PORTA-POTTIES / DB792 PG 435 r CONCRETE WASH ,r OUT AREA EXISTING / BLOCK / DIVERSION DIKE TO SMALL BUILDING SEDIMENT TRAPPING DEVICE FOR - CONSTRUCTION ENTRANCE ,NOTE, FILTREXX RUNOFF DIVERSION PHASE II ESC PLAN: SCALE i"=30' / D FOR GRAPHIC A PHIC SCALE C A T P THEE&S MEASUREORKTO CROSSUTILIZTHE �T Mir 111 IJ t1LL THE UTILITY WORK ACROSS THE 1'a,ed tolntruc tion entranrr fill all Liun c,mirul pLIN. SIONL 70' WIN. CONSTRUCTION ACCESS 3• SW-2A ASPHALT TOP COURSE !, 6' M-N. 21A AGGREGATE BASE PROFILE 1 - Tn• STONE ._ _._.. CONSTRUCTION ASPHALT PAVED ACCESS A WASHRACK EXISTING 2X 21 PAK % NTH F -MUST EXTEND FUEL WIOTH POSITYE DRNNAA L.. A� TO SEDIMENT OF INGRESS AND EGRESS TRAPPING DtMcr OPERATION Film 1/VIV SECTION A -A A IIWWlmill water lap of I Olth 11110 bic U0.111nl N1111 B Illaul Y1! I MCI) balltl„F. S , c „ 1 1 Khu1c tt 1 Tl1 c ! h m a wn.h Iw`e tall! A Lbaluela L 1 _ !filet L ade! ualc s t u t1 ql I C01NIaU1 ple-nue. \1'a.11 ill ualul be L211led au.'IN 1110111 the eOh:N1Ce to au �1p1 ot•eLl eITWPz v ea l0 lauut a eeduued .-111 HrGWued .hall be pTet'eltcvl how eute nu Strom cbaure. ditches of WMCILOlueeS. PAVED WASH RACK NO SCALE TMP 07800-00-00-017G2 N/F CHARLES ROTGIN JR DB 3880 PG 673 DB 1021 PG 410 (PLAT) 1992 CONSTRUCTION OF A SILT FENCE (WITH WIRE SUPPORT) 1. SET POSTS AND EXCAVATE A CXC 2. STAPLE WIRE FENCING TO THE POSTS. TRENCH UPSLOPE ALONG THE LINE OF POSTS. Imo` FLOW� III �I�i 3. ATTACH THE FILTER FABRIC TO THE WIRE FENCE AND EXTEND IT INTO THE TRENCH. FLOW 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. FILTER FABRIC �� WIRE �� 1L=� -I Source: Adapted from Installation of Straw and Fabric Filter Barriers for Sediment Control, Sherwood and Wyant 3.05 1992 FENCING AND ARMORING DRIP LINE SNOW FENCE BOARD FENCE l 00 CORRECT TRUNK ARMORING go TRIANGULAR BOARD FENCE Plate 3.05-1 Source: Va. DSWC 30 0 15 30 60 120 EXISTING PAVED AREA / TMP07800-00-0D-017A OP#i N/F TIRESUM LLC DB 4417 PG 283 L=7', W=6', D=2' ( DB 2290 PG 421 (PLAT) WITH GEO-FABRIC IN FEET = ft. UNDERLAYMENT 1 inch TEMPORARY DIVERSION DIKE /°" ///%/oo���/ �� 0 Compacted Soil PROPOSED LIMITS OF / MP 78- 7A _ 18" min DISTURBANCE (0.59 ac. -Flow o.�:+ Soo T -3 4. FDC 4.5' min. - 10BUFFERAM /� /�� ��� ��/�y 1 sw_3l.00 D 5(My�,p� Do / GM . , �.. TO EX. ROOF Z AREAS WITH SLOPE GREATER THAN 3:>.. AREA TO// OONSPOUTSTO DOSE TTO 6"ADS w, BE PLANTED WITH ILEX CORNUTA'DWARF BUFORD )POSED 6' ADS !fix SHRUBS FOR STABILIZATION ON A 6'x6' GRID. - - / ///� j//�j�� //� /��j a N5v5TEM BLOCK -1 ISTING � // / / ��✓ A NOTE: SILT FENCE, SAFETY / �j/ �j / ��j / BW 3900 FENCE, AND TREE PROTECTION SHALL BE INSTALLED AT LIMITS OF DISTURBANCE. THSE ARE OFFSET FOR GRAPHICAL OP#z PURPOSES. L=8', W=26', D=2' /OUT-338.0- ADDITIONALRIPRAP f EXISTING ADDEDTOTHE / / / / ��� /� %% W 10g•31' ALBEMARLE EXISTING RIPRAP x Qp22 COUNTY OUTFACE / ��j ��///o o/ //// 552� PRESERVED SLOPES w=Bss.DD ��. M1&ea / •yo� VROPOSED FILTREXX RUNOFF DIVERSION, SEE LL DETAIL-SHEET5 ROOF NSPOUT EMAIN 1 1 1 1 � _ PROPOSENUA) DWARFHRUBS It DB 72, PG.580 / // / SF // /�l• // / /� / BUFORD) NUTA DWARF BUFORD TO BE PLANTEDON A 6'x6'GRID OVER THE as SLOPE AREA / /W1VVIRE FOR STABILIZATION SUPPORT% �� o� E SUBJECT / / �� ���y�° �� _ -WASH RACK X a IN' TRFNCE�HAYTHE PROPERTY, TYP. �' o CE y2 7 S ,C IONEMAINTPWEDB THIS '- pND TRAFFIC IN CE• / THIS N E� RPN //// �� II -, NOT OPERATEDI P" CONSTRUCTI RUCI °• INST A��ED, 0 CONTRpCTOR'T LIZETHIS CON EXISTING AREASH 1 FOLOODPLAINA CONTRACTOR STAGING AREA o 19' WITH FUELING TANK, DUMPSTER," n, PS / ss2°�'22� AND PORTA-POTTIES DB 792PG 435 SAF / CONCRETE WASH OUT AREA EX. ROOF EXISTING / DOWNSPOUT BLOCK BUILDING / DIVERSION DIKE TO SMALL 3.38 1992 SEDIMENT TRAPPING DEVICE FOR CONSTRUCTION ENTRANCE 3.01 1992 !•.•.•.•.•.•.•.•.•.•..•.•.•.•.•.•.•.-----.-,•.•.•.•.•.•.•.•.•.•.•.• •..-•....-• ...... .................. u ■.,:.,.,�, ggu 'V• Source: Adapted from Conwed Plastics and Plate 3.38-2 VDOT Road and Brr�e Standards TMP 07800-00-00-017G2 N/F CHARLES ROTGIN JR DB 3880 PG 673 DB 1021 PG 410 (PLAT) nT�)" ♦n,��gcow GRAVEL FILTER* • J•a v�� c11110�>L�"� � i.G►1 � I THIS METHOD OF INLET PROTECTION IS 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. • GRAVEL SHALL BE VDOT #3, #357 OR 5 COARSE AGGREGATE. Plate 3.01-1 Source: Va. DSWC 3.07 1992 SILT FENCE DROP INLET R X VDDD FRAME PROTECTION DROP INLET WITH GRATE -X ~ FRAME 3' MIN. GATHER II _i1 EXCESS 1 / AT OWNERS PERSPECTIVE VIEWS ELEVATION OF STAKE AND FABRIC ORIENTATION DETAIL A 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 (NO - EXCEEDING t C.F.S.) ARE TYPICAL. THE METHOD SHALL NOT APPLY TO INLETS RECEIVING CONCENTRATED FLOWS, SUCH AS IN STREET OR HIGHWAY MEDIANS. Source: N.C. Erosion and Sediment Control Plate 3.07-6 Planning and Design Manual, 1988 3.07 Plate 3.07-1 SCOTT/R. CbLLINS'Z Lic. No. 0357911n A 12/06/21 U) z W O z O z O �Z w O u VA W o J a Lu Lu H` z o Eo z o a W LU / li LU LU LA W " 0 N W " > ! LIIJ i J J U) �n J w IttttJ Q AN Q J J Q w LL 0 0 U) z > z �1 Q LL 0- LU J z ° w U 0 z� I --I z ^ LLI O r2 � V 0 LL Q O z z LU I, LU ru Lu O_ � JOB NO. 112066 SCALE ill =301 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- J. SAFETY FENCE: A PROTECTIVE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE. TO PROHIBIT THE UNDESIRABLE USE OF AN EROSION CONTROL MEASURE BY THE PUBLIC. APPLICABLE TO ANY CONTROL MEASURE OR SERIES OF MEASURES WHICH CAN BE CONSIDERED UNSAFE BY VIRTUE OF POTENTIAL ACCESS BY 774E PUBLIC. 3.02 CONS7RUCTION ENTRANCE. A STABILIZED PAVED CONSTRUC77ON ENTRANCE Wl774 A WASH RACK LOCATED AT POINTS OF VEHICULAR INGRESS AND EGRESS ON A CONSTRUC77ON SI7E TO REDUCE 774E AMOUNT OF MUD 7RANSPORTED 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 SYN7HE77C FILTER FABRIC STRETCHED ACROSS AND ATTACHED TO SUPPOR77NG POSTS AND ENTRENCHED, TO INTERCEPT AND DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION 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. 774E 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 THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH). 3.07 STORM DRAIN INLET PR07EC77ON: 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 STABILIZA7ON OF THE DISTURBED AREA. INLET PR07EC77ON APPLIES WHERE STORM DRAIN INLETS ARE TO BE MADE OPERATIONAL BEFORE PERMANENT STABILIZATION OF THE CORRESPONDING DISTURBED DRAINAGE AREA. 3.08 CULVERT INLET PROTECTION: A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM CULVERT. TO PREVENT SEDIMENT FROM ENTERING STORM CULVERTS PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA. INLET PR07ECI0N APPLIES WHERE STORM CULVERTS ARE EXISTING OR TO BE MADE OPERATIONAL BEFORE PERMANENT STABILIZATION OF THE CORRESPONDING DRAINAGE AREA. 3.09 TEMPORARY DIVERSION DIKE.• A TEMPORARY RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE 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 OU7LET TO DIVERT SEDIMENT -LADEN RUNOFF FROM A DISTURBED AREA TO A SEDIMENT -TRAPPING FACILITY SUCH AS A SEDIMENT 7RAP OR SEDIMENT BASIN. USE WHEREVER STORMWATER RUNOFF MUST BE TEMPORARILY DIVERTED TO PR07ECT DISTURBED AREAS AND SLOPES OR RETAIN SEDIMENT ON SITE DURING CONSTRUCTION. THESE STRUCTURES GENERALLY HAVE A LIFE EXPECTANCY OF 18 MONTHS OR LESS, WHICH CAN BE PROLONGED WI77H 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 ELEVATION MAY DAMAGE PROPERTY, CAUSE EROSION, OR INTERFERE WITH THE ESTABLISHMENT OF VEGETATION ON LOWER AREAS, WHERE SURFACE AND/OR SHALLOW SUBSURFACE FLOW IS 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 PR07ECT 774E 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 VEGETATIVE COVER, ETC., ARE SUCH THAT THE SOIL MAY ERODE UNDER THE DESIGN FLOW CONDITIONS 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 7HE STORMWATER RUNOFF. THIS PRACTICE, U77LIZING A COMB/NA TON OF STONE SIZES, IS 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 107H APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS TO REDUCE EROSION AND SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE FOR A PERIOD 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 CONSTRUCTION UNTIL PERMANENT VEGETATION 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 PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER THAT IS ECONOMICAL, ADAPTABLE TO SITE CONDITIONS, AND ALLOWS SELECTION OF THE MOST APPROPRIATE PLANT MATERIALS. TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONSTRUCTION ACTIVITIES, ALL AREAS WILL RECEIVE A PERMANENT VEGETATIVE COVER. 3.35 MULCHING: APPLICATION 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 7HE GROWTH OF VEGETATION BY INCREASING AVAILABLE MOISTURE AND PROVIDING INSULATION AGAINST EXTREME HEAT AND COLD. AREAS WHICH HAVE BEEN PERMANENTLY SEEDED SHOULD BE MULCHED IMMEDIATELY FOLLOWING SEEDING. AREAS WHICH CANNOT BE SEEDED BECAUSE OF 7HE 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 STABILIZATION BY THEMSELVES, CAN BE USED IN CONJUNCTION WI7H TEMPORARY SEEDING. 3.37 TREES 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 VEGETATION 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 CONSERVATION, OR TO ESTABLISH WILDLIFE HABITAT. 3.36 BLANKET MATTING INSTALLATION OF A PROTECTIVE COVERING OR A SOIL STABILIZATION MAT ON A PREPARED PLANING AREA OF A STEEP SLOPE OR CHANNEL TO AID IN THE CONTROLLING EROSION ON CRITICAL AREAS. 3.38 TREE PRESERVATION AND PROTECTION: PROTECTION OF DESIRABLE TREES FROM MECHANICAL OR OTHER INJURY DURING LAND DISTURBING AND CONSTRUCTION ACTIVITY. TO ENSURE THE SURVIVAL OF DESIRABLE TREES WHERE THEY WILL BE EFFECTIVE FOR EROSION AND SEDIMENT CONTROL, WATERSHED PROTECTION, LANDSCAPE BEAUIFICARON, DUST AND POLLUTION CONTROL, NOISE REDUCTION, SHADE AND OTHER ENVIRONMENTAL BENEFITS WHILE 7HE LAND IS BEING CONVERTED FROM FOREST TO URBAN -TYPE USES. APPLIES IN TREE -INHABITED AREAS SUBJECT TO LAND DISTURBING ACTIVITIES. 3.39 DUST CONTROL: REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLITION 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 CONS7RUCT0N. MEASURES EMPLOYED SHALL BE IN ACCORDANCE H97H THE VESCH. 1992 3.32 TABLE 332-D SITE SPECIFIC SEEDING MIXTURES FOR PIEDMONT AREA Total Lbs. Per Acre Minimum Care Lawn - Commercial or Residential 175-200 lbs. - Kentucky 31 or Turf -Type Tall Fescue 95-100%D - Improved Perennial Ryegrass 0I - Kentucky Bluegrass 0.5%D Hieh-Maintenance Lawn 200-250lbs. - Kentucky 31 or Turf -Type Tall Fescue 100%D General Slope (3:1 or less) - Kentucky 31 Fescue 128 lbs. - Red Top Grass 2 lbs. - Seasonal Nurse Crop" 20 lbs, 150 lbs. Lpw-Maintenance SIQpe (, teener than 3:11 Kentucky 31 Fescue 1081bL Red Top Grass 2 lbs. Seasonal Nurse Crop W 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 " Substitute Sericea lespedeza for Crownvetch east of Farmville, Va. (May through September use hulled Sericea, all other periods, use unbolted Sericea). If Flatpea is used in lieu of Crownvetch, 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 RecoTnmended Applieation pH Test of Ag icuhwal Limestone Wow 4.2 3 tons per acre 42 to 5.2 2 tons per acre 52 to 6 1 ton per aae TABLE 331-B ACCEPTABLE TEMPORARY SEEDING PLANT MATERIALS 'QUICK REFERENCE FOR ALL REGIONS Rate Noun, Dams Specie fibs/acre) Sept. 1 - Feb. 15 50150 Mu of Annual Ryegracs (LDHUm multi-0n,uar) & 50-III Cereal (Winter) Rye IGxle cereaLl Feb. 16-Apr. 30 Annual Ryev= 60-DID a Dl'um mubNMn m) May 1- Aug 31 German Millet 50 ,ai GENERAL SLOPE (3�I OR LESS) TOTAL LBS PER ACRE KENTUCKY 31 FESCUE 128 LBS RED TOP GRASS 2 LBS SEASONAL NURSE CROP 20 LBS 150 LBS EROSION CONTROL NOTES ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTCES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. ES-2: THE PLAN APPROVING AUTHORITY MUST BE N077FIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. ES-3-ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. ES-4: A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. ES-5: PRIOR TO COMMENCING LAND DISTURBING ACT7077ES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING BUT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. ES-6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLA77ON OF ANY ADDIT70NAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY 7HE PLAN APPROVING AUTHORITY. ES-7.•ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING AC77WTIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZAT70N IS ACHIEVED. ES-8: DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED WATER FILTERING DEVICE. ES-9: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. General construction notes for Erosion and Sediment Control plans 1. The plan approving authority must be notified one week prior to the re -construction P PP g Y P P conference, one week prior to the commencement of land disturbing activity, and one week prior to the final inspection. 2. All erosion and sediment control measures will be constructed and maintained according to minimum standards and specifications of the Virginia Erosion and Sediment Control Handbook and Virginia Regulations VR 625-02-00 Erosion and Sediment Control Regulations. 3. All erosion and sediment control measures are to be placed prior to or as the first step in clearing. 4. A copy of the approved erosion and sediment control plan shall be maintained on the site at all times. 5. Prior to commencing land disturbing activities in areas other than indicated on these plans (including, but not limited to, off -site borrow or waste areas), the contractor shall submit a supplementary erosion control plan to the owner for review and approval by the plan approving authority. 6. The contractor is responsible for installation of any additional erosion control measures necessary to prevent erosion and sedimentation as determined by the plan approving authority. 7. All disturbed areas are to drain to approved sediment control measures at all times during land disturbing activities and during site development until final stabilization is achieved. 8. During dewatering operations, water will be pumped into an approved filtering device. 9. The contractor shall inspect all erosion control measures periodically and after each runoff - producing rainfall event. Any necessary repairs or cleanup to maintain the effectiveness of the erosion control devices shall be made immediately. 10. All fill material to be taken from an approved, designated borrow area. 11. All waste materials shall be taken to an approved waste area. Earth fill shall be inert materials only, free of roots, stumps, wood, rubbish, and other debris. 12. Borrow or waste areas are to be reclaimed within 7 days of completion per Zoning Ordinance section 5.1.28. 13. All inert materials shall be transported in compliance with section 13-301 of the Code of Albemarle. 14. Borrow, fill or waste activity involving industrial -type power equipment shall be limited to the hours of 7:00am to 9:00pm. 15. Borrow, fill or waste activity shall be conducted in a safe manner than maintains lateral support, or order to minimize any hazard to persons, physical damage to adjacent land and improvements, and damage to any public street because o slides, sinking, or collapse. 16. The developer shall reserve the right to install maintain remove or convert to permanent Pe stormwater management facilities where applicable all erosion control measures required g PP 4 by this plan regardless of the sale of any lot, unit, building or other portion of the property. 17. Temporary stabilization shall be temporary seeding and mulching. Seeding is to be at 75 lbs/acre, and in the months of September to February to consist a 50150 mix of Annual e R ass and Cereal Wintere R or in March and April e to consist of Annual R cr May YP>< Y. P Y. Y through August to consist of German Millet. Straw mulch is to be applied at 801bs/LOOsf. Alternatives are subject to approved by the County erosion control inspector. 18. Permanent stabilization shall be lime and fertilizer, permanent seeding, and mulch. Agricultural grade limestone shall be applied at 90lbs/1000sf, incorporated into the Lop 4-6 inches of soil. Fertilizer shall be applied at 1000lbs/acre and consist of a 10-20-10 nutrient mix. Permanent seeding shall be applied at 180lbs/acre and consist of 95%D Kentucky 31 or Tall Fescue and 0-5%G Perennial Ryegrass or Kentucky Bluegrass. Straw mulch is to be applied at 80lbs/100sf. Alternatives are subject to approved by the County erosion control inspector. 19. Maintenance: All measures are to be inspected weekly and after each rainfall. Any damage or clogging to structural measures is to be repair immediately. Silt traps are to be cleaned when 50%D 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) 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 NOTES: PERMANENT STABILIZATION. PERMANENT SEEDING WILL BE APPLIED TO ALL DISTURBED AREAS AS PER THE PERMANENT STABILIZATION OF THIS EROSION & 1. LIME AND FERTILIZER NEEDS SHALL BE DETERMINED BY SOIL SEDIMENT CONTROL NARRATIVE. TESTS AND APPLIED IN ACCORDANCE WITH VESCH STD. 3.32. 2. SEEDINGS To BE MULCHED IMMEDIATELY UPON COMPLETION AFTER CONSTRUCTION IS COMPLETED, ALL DISTURBED AREAS OF THE SITE WILL BE LIMED, OF SEED APPLICATION, IN ACCORDANCE W1 VESCH STD 3.35. FERTILIZED, AND SEEDED AS PER CURRENT VDOT STANDARDS THIS SHALL CONSIST OF THE FOLLOWING: PERMANENT SEEDING SCHEDULE P TOP SOIL - 2" DEPTH No SCALE LIME - 2 TONS/ACRE (STD. & SPEC. 3.32 OF VIRGINIA EROSION & FERTILIZER - 600 LBS/ACRE OF 15-30-15 SEDIMENT CONTROL HANDBOOK, 3RD ED.) SEED - ERNST 5311 CONSERVATION SEED MIX - ERNMX-114 (45 LBS/ACRE PENNLAWN CREEPING RED FESCUE, 37.5 LBS/ACRE ARGILS KENTUCKY BLUEGRASS, 37.5 LBS/ACRE TEMPORARY SEEDING: PARK KENTUCKY BLUEGRASS, 15 LBS/ACRE ANNUAL RYEGRASS & 15 LBS/ACRE PLEASURE ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR EXTENDED PERIODS OF TIME SHALL BE SEEDED WITH FAST GERMINATING TEMPORARY VEGETATION IMMEDIATELY FOLLOWING GRADING. PERENNIAL AFTER THESE AREAS ARE STABILIZED THEY WILL BE MOWED AND MAINTAINED 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. ON A REGULAR BASIS. PLANTS SHOULD BE SELECTED APPROPRIATE TO THE SEASON AND SITE CONDITIONS FROM TABLES 3 31B AND 3.3iC. NOTE THAT TABLE 3.3iB PRESENTS PLANTS WHICH CAN BE USED WITHOUT EXTENSIVE MAINTENANCE,• EVALUATION OF SITE CONDITIONS; TABLE 3.31CPRESENTS MORE IN-DEPTH INFORMATION ON THE PLANT MATERIALS. IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CHECKED DAILY TO CONTROL EROSION ON BARE SOIL SURFACES, PLANTS MUST BE ABLE TO GERMINATE AND GROW. SEEDBED PREPARATION IS ESSENTIAL. AND AFTER EACH SIGNIFICANT RAINFALL. SPECIFIC ATTENTION WILL BE GIVEN TO THE FOLLOWING ITEMS: AN EVALUATION SHOULD BE CONDUCTED TO DETERMINE IF LIME IS NECESSARY FOR TEMPORARY SEEDING. TABLE 3.31AMAYBE USED TODETERMINE THE ACTUAL NEED ALONG WITH SUGGESTED A. SEDIMENT BASINS AND/OR TRAPS WILL BE CLEANED AND MAINTAINED IN APPLICATION RATES: ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK. B. ALL GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP THAT FERTILIZER SHALL BE APPLIED AS Soo LBS/ACRE OF 10-20-10 (14 LBS]i,000 SO. FT.) OR EQUIVALENT NUTRIENTS. LIME AND FERTILIZER SHALL BE INCORPORATED INTO THE TOP 2 TO 4 INCHES OF THE SOIL IF WILL PREVENT PROPER DRAINAGE. IF THE GRAVEL IS CLOGGED BY SEDIMENT THE POSSIBLE. GRAVEL WILL BE REMOVED AND CLEANED, OR IT WILL BE REPLACED. 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 BYDISCING, C. ALL SILT FENCE BARRIERS WILL BE CHECKED REGULARLY FOR UNDERMINING OR RAKING,HARROWING, OR OTHER ACCEPTABLE MEANS. TRACKING WITH BULLDOZER CLEATS IS MOST EFFECTIVE ON SANDY SOILS. THIS PRACTICE OFTEN CAUSES UNDUE COMPACTION OFTHE SOIL DETERIORATION OF THE FABRIC AND REPAIRED AS REQUIRED. SEDIMENT SHALL BE SURFACE, ESPECIALLY IN CLAYEY SOILS, AND DOES NOT AID PLANT GROWTH AS EFFECTIVELY AS OTHER METHODS OF SURFACE ROUGHENING. REMOVED WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHED HALF WAY TO THE TOP OF THE BARRIER. SEED SHALL BE EVENLY APPLIED WITH A BROADCAST SEEDER, DRILL, CULTIPACKER SEEDER OR HYDROSEEDER. SMALL GRAINS SHALL BE PLANTED NO MORE THAN iz INCHES DEEP. SMALL SEEDS, SUCH AS D. ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND IS KENTUCKY BLUEGRASS, SHOULD BE PLANTED NO MORE THAN L INCH DEEP. OTHER GRASSES AND LEGUMES SHOULD BE PLANTED FROM 1INCH TO=DEEP. MAINTAINED. AREAS SHOULD BE FERTILIZED AND RESEEDED AS NEEDED. W DESCRIPTION OF EROSION &c SEDIMENT CONTROL MEASURES: EROSION AND SEDIMENT CONTROL MEASURES: IT IS ANTICIPATED TO USE CONSTRUCTION ENTRANCES, DIVERSION DIKES, EXISTING SEDIMENT BASINS, AND SILT FENCES WILL BE INSTALLED TO CONTROL SURFACE DRAINAGE. TEMPORARY SEEDING HALL BE USED IMMEDIATELY FOLLOWING ALL LAND DISTURBANCE ACTIVITIES. TEMPORARY STOCKPILE AREAS HALL BE MAINTAINED FROM TOPSOIL THAT WILL BE STRIPPED FROM AREAS TO BE GRADED AND STORED FOR LATER SPREADING. STOCKPILE LOCATIONS SHALL BE ON SITE AND SHALL BE STABILIZED WITH A TEMPORARY VEGETATIVE COVER. PERMANENT SEEDING WILL BE PERFORMED FOR ALL AREAS WHICH WILL NO LONGER BE EXCAVATED AND WHERE CONSTRUCTION ACTIVITIES HAVE CEASED. PERMANENT SEEDING SHALL ALSO BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR A YEAR OR MORE. SELECTION OF SEED MIXTURE HALL DEPEND ON THE TIME OF YEAR APPLIED. TEMPORARY SEEDING WILL BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR MORE THAN SEVEN DAYS. THESE AREAS SHALL BE SEEDED WITH FAST GERMINATING VEGETATION IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS. SELECTION OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. CONSTRUCTION ENTRANCE: A STABILIZED PAVED CONSTRUCTION ENTRANCE WITH A WASH RACK LOCATED AT POINTS OF VEHICULAR INGRESS AND EGRESS ON A CONSTRUCTION SITE. TO REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. CONSTRUCTION ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE THE AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ROADWAYS. SILT FENCE: A TEMPORARY SEDIMENT BARRIER CONSISTING OF A SYNTHETIC FILTER FABRIC STRETCHED ACROSS AND ATTACHED TO SUPPORTING POSTS AND ENTRENCHED. TO INTERCEPT AND DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION OPERATIONS IN ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE. TO DECREASE THE 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. THEY SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED IN ACCORDANCE WITH THE MRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH). 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 PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER THAT IS ECONOMICAL, ADAPTABLE TO SITE CONDITIONS, AND ALLOWS SELECTION OF THE MOST APPROPRIATE PLANT MATERIALS. TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONSTRUCTION ACTIVITIES, ALL AREAS WILL RECEIVE A PERMANENT VEGETATIVE COVER. TEMPORARY SEEDING: THE ESTABLISHMENT OF A TEMPORARY VEGETATIVE COVER ON DISTURBED AREAS BY SEEDING WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE FOR A PERIOD 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 CONSTRUCTION UNTIL PERMANENT VEGETATION OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED. DUST CONTROL: REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLITION 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 CONSTRUCTION. MEASURES EMPLOYED SHALL BE IN ACCORDANCE WITH THE VESCH. TEMPORARY DIVERSION DIKE: A RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA WHICH DIVERTS OFF -SITE RUNOFF AWAY FROM UNPROTECTED SLOPES AND TO A STABILIZED OUTLET, OR TO DIVERT SEDIMENT -LADEN RUNOFF TO A SEDIMENT TRAPPING STRUCTURE. MAXIMUM EFFECTIVE LIVE IS 18 MONTHS. ROCK CHECK DAMS: SMALL, TEMPORARY STONE DAMS CONSTRUCTED ACROSS A DRAINAGE DITCH TO REDUCE THE VELOCITY OF CONCENTRATED FLOWS, REDUCING EROSION OF THE SWALE OR DITCH. LIMITED TO USE IN SMALL OPEN CHANNELS WHICH DRAIN 10 ACRES OR LESS; SHOULD NOT BE USED IN LIVE STREAMS. STORM DRAIN INLET PROTECTION: THE INSTALLATION OF VARIOUS KINDS OF SEDIMENT TRAPPING MEASURES AROUND DROP INLETS OR CURB INLET STRUCTURES PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA; LIMITED TO DRAINAGE AREAS NOT EXCEEDING ONE ACRE, AND NOT INTENDED TO CONTROL LARGE, CONCENTRATED STORMWATER FLOWS. TEMPORARY SEDIMENT TRAP: A SMALL PONDING AREA, FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT WITH A STONE OUTLET ACROSS A DRAINAGE SWALE, TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS FOR ENOUGH TIME TO ALLOW MOST TO THE SUSPENDED SOLIDS TO SETTLE OUT. MAXIMUM EFFECTIVE LIFE IS 18 MONTHS. TEMPORARY SEDIMENT BASIN: A TEMPORARY BARRIER OR DAM WITH CONTROLLED STORMWATER RELEASE STRUCTURES WHICH IS FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. IT IS USED TO DETAIN SEDIMENT -LADEN RUNOFF FROM DRAINAGE AREAS 3 ACRES OR GREATER FOR ENOUGH TIME TO ALLOW MOST OF THE SUSPENDED SOLIDS TO SETTLE OUT. IT CAN BE CONSTRUCTED ONLY WHERE THERE IS SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY MAXIMUM EFFECTIVE LIFE IS 18 MONTHS UNLESS DESIGNED AS A PERMANENT POND BY A QUALIFIED PROFESSIONAL. OUTLET PROTECTION: THE INSTALLATION OF RIPRAP CHANNEL SECTIONS AND/OR STILLING BASINS BELOW STORM DRAIN OUTLETS TO REDUCE EROSION AND UNDER-CUTTNG FROM SCOURING AT OUTLETS AND TO REDUCE FLOW VELOCITIES BEFORE STORMWATER ENTERS RECEIVING CHANNELS BELOW THESE OUTLETS. CULVERT INLET PROTECTION: A SEDIMENT FILTER LOCATED AT THE INLET TO STORM SEWER CULVERTS WHICH PREVENTS SEDIMENT FROM ENTERING, ACCUMULATING IN AND BEING TRANSFERRED BY THE CULVERT. IT ALSO PROVIDES EROSION CONTROL AT CULVERTS DURING THE PHASE OF A PROJECT WHERE ELEVATIONS AND DRAINAGE PATTERNS ARE CHANGING, CAUSING ORIGINAL CONTROL MEASURES TO BE INEFFECTIVE. SAFETY FENCE: A PROTECTIVE BARRIER INSTALLED TO PROHIBIT UNDESIRABLE USE OF AN EROSION CONTROL MEASURE. SILT FENCE CULVERT INLET PROTECTION ____ _________ ____e ____------ ---- TOE M FILL I _I_ CULVERT I �I I I- - I I I I I I I ----------- , - -- L l I TOE OF FELL. SILT ENCE 'DSTANCE IS 6' MININUM IF ROW 6 TOWARD EMRAUKNENT Row OPTIONAL STONE COMBINATION .0' 1 1.5' ROW Pq2 "VDOT 13. #357 OR 15 CONDSE AGGREGATE5 R~ TO REPLACE SILT FENCE IN ' HORSESHOE ' WHEN HIGH VELOCITY OF FLOW IS EXPECTED Source: Adapted from VDOT Standard Sheets and Va. DSWC 3.08 1992 EROSION CONTROL NOTES & NARRATIVE PURPOSE: THE PURPOSE OF THIS LAND DISTURBING ACTIVITY IS TO GRADE THE SITE TO FOR A CAR WASH AND ASSOCIATED PARKING LOT. THE TOTAL AREA TO BE DISTURBED WITH THIS PLAN IS 0.59 ACRES. EXISTING SITE CONDITIONS: THIS SITE IS MAINLY A GRASSED AREA WITH WOODS AND SLOPES TO THE NORTHWEST. THE SITE IS LOCATED TO THE WEST OF PANTOPS SHOPPING CENTER PARKING LOT BY ENTERPRISE RENT -A -CAR. A PORTION OF THE SITE JUST NORTH OF ENTERPRISE RENT -A -CAR IS CURRENTLY PAVED. THE MAJORITY OF THE SITE DRAINS DIRECTLY NORTHWEST TOWARDS THE RIVANNA RIVER. ADJACENT AREAS: THIS SITE IS BORDERED TO THE NORTHWEST BY VACANT LAND ALONG THE RIVANNA RIVER, TO THE SOUTH BY EXISTING COMMERCIAL BUILDING, TO THE EAST BY PANTOPS SHOPPING CENTER PARKING LOT, AND TO THE NORTH BY ETERPRISE RENT -A -CAR. OFFSITE LAND DISTURBANCE: NO OFFSITE LAND DISTURBANCE IS PROPOSED WITH THIS PLAN. CRITICAL AREAS: TREE PROTECTION FENCING AND SILT FENCE SHALL BE MAINTAINED ALONG THE NORTHWEST PROPERTY LINES AS SHOWN ON THE PLAN TO PROTECT THE ADJACENT PROPERTIES. CONTRACTOR SHALL ENSURE THAT ALL SEDIMENT MAINTENANCE CONTROLS ARE ALONG THE PARKING LOT ENTRANCE TO ENSURE THAT NO SEDIMENT LEAVES THE SITE AND DRAINS ONTO THE ROADS. SOILS: SOILS MAP IS INCORPORATED INTO EROSION CONTROL PLAN PHASE I WITH SOILS DATA INCLUDED WITH THIS NARRATIVE. SEQUENCE OF CONSTRUCTION: PHASE I: 1. NOTIFY ALBEMARLE COUNTY TO SCHEDULE A PRE -CONSTRUCTION MEETING AS REQUIRED. 2. PRIOR TO DISTURBANCES, THE LIMITS OF DISTURBANCE SHALL BE FLAGGED AND THE TREE PROTECTION FENCING SHALL BE INSTALLED. 3. NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTION PROCESS WITHOUT THE APPROVAL FROM THE INSPECTOR ON THE PROJECT. 4. THE PROPOSED CONSTRUCTION ENTRANCE WITH WASH AREAS SHALL BE INSTALLED AS SHOWN ON THE PLANS. THE CONSTRUCTION ENTRANCE TO BE INSTALLED WHERE CONSTRUCTION VEHICLE ROUTES INTERSECT PAVED PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY (VEHICULAR) TRACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PUBLIC ROAD SURFACE, THE ROAD SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTING TO A SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER. 5. INSTALL THE INITIAL CONSTRUCTION MEASURES AS SHOWN ON THE PHASE I EROSION CONTROL SHEET. THIS INCLUDES WIRE SILT FENCE AND INLET PROTECTION. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. 6. ONCE ALL THE PHASE I EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE EROSION CONTROL PHASE I PLAN AND THE INSPECTOR HAS APPROVED THE EROSION CONTROL MEASURES, THE CONTRACTOR CAN BEGIN THE MINIMUM GRADING OPERATIONS AND BUILDING THE RETAINING WALL. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES, AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION. THE CONCRETE RETAINING WALL SHALL BE CONSTRUCTED FIRST TO PROTECT THE DOWNSTREAM PRESERVED SLOPES. THE CONTRACTOR SHALL EXCAVATE ONLY WIDE ENOUGH TO INSTALL THE 3' FOOTER AND 10" WALL, AS SHOWN IN THE DETAIL ON SHEET 3. ONCE THE WALL IS CONSTRUCTED, THE REMAINING PORTION OF THE SITE CAN BE GRADED PER THE PLAN. 7. ONCE ROUGH GRADING IS COMPLETE, CONTRACTOR CAN BEGIN INSTALLING UTILITIES, ROAD/SIDEWALK CONSTRUCTION, AND BUILDING THE CAR WASH BUILDING. INLET PROTECTION SHALL BE APPLIED TO INLETS AS THEY ARE BUILT AS SHOWN ON THE PLAN. 8. 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. TEMPORARY SOIL 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 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. PHASE II: 9. ONCE THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL, THE CONTRACTOR CAN BEGIN REMOVAL OF SEDIMENT TRAPPING MEASURE. NO ITEM SHALL BE REMOVED UNLESS THE UPSTREAM AREAS ARE STABILIZED AND THE INSPECTOR GIVES PERMISSION. 10. MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM ADMINISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. 11. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. SOIL DESCRIPTION 72C- RABUM CLAY LOAM-Th TO 15% SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ONINTERFLUVES. MODERATE RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY. 88- UD RTHENT L AMY-2%T z %SLOPES. THESE DEEPS SOILS N INTERFLUVES AND NEAR FLOODPLAINS. MODERATE 0 S,0 05 0 0 RUNOFF, WITH LOW TO MODERATE PERMEABILITY. STORMWATER RUN-OFF CONS/DERATIONS• STORMWATER MANAGEMENT. THE STORMWATER RUNOFF FROM THIS PROJECT DRAINS TEMPORARILY TO THE WIRE BACKED SILT FENCE. THE SILT FENCE WILL BE REMOVED AFTER THE DEVELOPMENT OF THE CAR WASH PROJECT 3.36 ON 'TM SLOPES, aPPLY PROTECDVE COVERING PPRN.LEL TO TAE EIRECION OF FLOW MD ANCHOR SECURELY. BRING WTERBL DOWN TO A LEVEL AREA BEFORE A I _ TERMINATING THE INSTALIATION. TURN THE END -,. UNDER 4' PND STAPLE AT If BVALS TERf r Plate 3.08-1 Source: Adapted from Ludlow Products Brochure IN prWES, K Y PROTEMrvE COvEIONG PART TO THE DIRECTION OF 'I USE CHECK Y AS REQUIRED. AMID JOINING UOU'D AL IN THE CENTER OF THE CRCH IF AT ALL POSSIBLE. DISCHARGE AREA UNDISTURBEDARFA7 S EGHA NINT DOF DEVICE POINTED UPHILL TO PREVENT END -AROUND FLOW T 18' DIAMETER FILTRE%X®SOXXT" (ALSO AVAILABLE IN tr. 12 AND 24' DIAMETERS) I -A r AT LOW END OF DEVICE POINTED DOWNHILL TO PREVENT PONDING 2'X2'X3V WOODEN STAKES RACED 10p O.C. ITEMS: . REMOVE SEDIMENT FROM THE UPSLOPE SIDE OF THE SOXXNI WHEN ACCUMULATION HAS REACHED 12 OF EFFECTIVE HEIGHT OF SOXX' 2. SLOPES GREATER THAN 5%MAY REQUIRE ADDITIONAL STABIUZATION PRACTICES 3. SOXX"' MAY BE SEEDED AT THE TIME OF INSTALLATION FILTREXX® RUNOFF DIVERSION MAX. WATER LEVEL MINIMUM FREEBOARD 18" DIAMETER FILTREXX® SOXXTM (ALSO AVAILABLE IN 9% 12" AND 24- DIAMETERS) 2' X Y X 36' WOODEN STAKES PLACED 10' O.C. SINGLE INSTALLATION SECTION Plate 3.36-1 IFILTREXX® RUNOFF DIVERSION SE SCOTT/R. Cb•LLINSIZ " Lic. No. 0357911n A 12/06/21 ,4i to z (� W 2:V) 0 O Z z 0 z z O a I� w � HIn W 0 J Q U3 to Lu z o E z c' 0 `H / m .. a R LU � W W j Of W N CD . LA J 7- 7'�) ti M CM I N 4 M R IT 1 N W N W N > LU J J_ > U) LU O J U Y LU in ZLU 10� rr_ U) J Q J AN Q ��� lJ / I LU I- Z LU U z 11/-aa aaal 10- ,O V / 10- O Z 0- V) J a L L1 Q Z L1J F_ Q Q Z J O O V Z L L1 2 0 Lli Z Z O IX LU L I W a t=0 JOB NO. 112066 SCALE AS SHOWN SEEDINGS MADE IN FALL FOR WINTER COVER AND DURING HOT AND DRY SUMMER MONTHS SHALL BE MULCHED ACCORDING TO MULCHING, STD. & SPEC.3 35, 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. 9 / PRE -DEVELOPMENT SWM PLAN: POST -DEVELOPMENT SWM PLAN:. / SCALE 1"-30' / SCALE i"=30' � T oF�t o t TMP 07800-00-00-017A �, TMP 07800-00-00-017A / N/FTIRESUMLLC +5' / / N/ �/ SCOTT R. LLINS'Z DB 4417 PG 283 / DB 4417 PG 83 h DB 2290 PG 421(PLAT) / PAS DB 2290 PG 421 (PLAT) PAS/ L) Lic. 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ISLID TO OF DISTURBANCE DARY FO IS // o FDC USED TO DEFINE THE BOUNDARY FOR THE / � USED TO DEFINE THE BOUNDARY FOR THE �///� �/ / / o VRRM WATER QUALITY CALCULATIONS, J /�/ ////��� �/ I BV�=3 1.00 .ROOF 5°0 T 3 4.00 to VRRM WATER QUALITY CALCULATIONS, I / /��/�/ /1/ Z y i �i�� /��Ex.ROOF6M / // ��/ �/� "`, DO NSPOUT Lu TO EMAIN i Z o DOWNSPOUTS TO u, LJ /q�/y _ OPOSED 6'ADS ///�' ' / / / ._ ISTING 1 �G / / / j/ ////// / / o0NN5 STEM ISTING Z Z � LDING 1 O U 111 O , o LIMITS OF / /�//////C/ / ��N$ 35 FFE �///�//// / BW 350.0 $. 35 FFE U E 0 ANALYSIS FOR,, // /// //// j //// / // / /� // / // THIS �/ // // ��/�/ // /i ///i /ice // //ii / // // DEVELOPMENT / // //// / /// // / J / i LIMIT O / � ,i 1111 - LU // / ANALYSIS FOR THIS // ��/�/// // / U) w EXISTING / / / / DEVELOPMENT / /�° // //// �%- ' ► Lu //INUVT= EXISTINGALBEMARLE . / / / ALBEMARLE //INUVT . ��O338.0 �///�/// FFE 'r 1 COUNTY O-33COUNTY // / �� // / - ' M PRESERVED SLOPES / / 35584 O$ 31, cuR i PRESERVED SLOPES �TA_�WW C. �S55T_0R0 -iEX. INLET - l - / / / ///// i / EX PARKING � -- BENCHMARK - TOP / - 0 � ' �/ / DFSDMH DRAINAGE /� LOT / TMP 077 0-00-00-04100 TOP=35439 TMP077 0-00-00-04100 COUN OF ALBEMARLE / / / / 26"RCP COUN OF ALBEMARLE �// ��/� _ _ ,�,; DRAINAGE DB/2,372, PG.580 / OUT=348.69 BENCHMARK AREA TO DB/2372, PG.580 / // Al - / / �� ! N 389 / 1.74 ac. / W C y / R VED E- 1494817.46 :+' PARKING SIGNS ELEV-3SS.00 ° w - Q CD CD EXISTINGsrR-7 cN=9s 3X DES - / -Tc=0.10 hrs. / o / INLET o UB]ECT � // ��� / / 1.74 ac._ //J/ / {t}�/ //1 HANDICAP ,,/SUBJECT P / // / / / / / / p PARKING SIGNS PKVPERTY, TY .�/ /_ / / f�OPERTY, / SUBAREA A / � � � � � /// //// // � � ST .6 f r � - �� � :, � � L9 Pre-ReDevelo ment Impervious Area 0.55 ac. / I ;; p p 4// / / ��� // /// STR�5 - V/ /Post ReDevelopment Impervious Area CN = 69 / Summary / / / //� // _ �- ��� Summary EXISTING 100-YR ////// /// _ ( EXISTING 100-YR //// // / /�/// BussTOP ON DA A- Water Quantity) //�/�� ���// w / �" / / ( Y) M FEMA FLOODPLAIN FEMA FLOODPLAIN // ON DA A- Water Quantity) j��1 . / /Tc= 0 10 hrs . �55 / SIGN Existing Parking &Drive Aisles 1,258 sf // �� /u�� _ / / Parking & Drive Aisles 12,540 sf C.j Existing Walkways 1,502sf / / ///�/ / / g y // - % � � - 1 Walkways 1,160 sf � CA S52.4p22l7879 / 20' ATERLINE Existing Buildings/Structures 3,000 sf // / / /// / �� ^w 1T8'19 / SUBAREA A g i 22 SERLINE N ASEMENT / / // / // % 552° �� / SEMENT Buildings 2,884 sf D8 792 PGa3s 5,760 5f / /�j�j // jj°o / 0.55 ac. P6ti35 16,584 sf co � DRAINAGE / /// // //� / / cN=87 � z ��/ y / TC= 0.10 hrs. ' Tc=o 10 hrs. / AREA TO / / �i//�i //% Tc=0.10 hrs. / / o J / 13' OF OLF w/ A ELEV.=0.25' / EXISTING / Pre-ReDevelopment Impervious Area / 17' OF OLF w/ A ELEV.=0.35' / / Post-ReDevelopment Impervious Area W 0) EXISTING EX. SPO > EXISTING / DOWNSPOUT 132 OF CONC. FLOW W A ELEV.=3.5 BLOCK / . N � 110' of colvc. FLOW w/ A ELEV.=9' BLOCK INLET � Summary / / / Summary BUILDING / 22' CHANNEL FLOW IN PIPES ® 3.8 ft/s BUILDING / / Y N / (Within Limits of Disturbance- Water Quality) / C z / � (Within Limits of Disturbance- Water Quality) G Parking & Drive Aisles 2,558 sf / / Walkways 2,002 sf Q / Parking &Drive Aisles 13,840 sf > U)Q TMP 07800-00-00-017G2 ` TMP 07800-00-00-017G2 / Walkways 1,660 sf ., \ J 1 N/F CHARLES ROTGIN JR / Buildings 500 sf 1 N/F CHARLES ROTGIN JR ( Buildings 384 sf W / DB 3880 PG 673 1 DB 3880 PG 673 1 DB 1021 PG 410 (PLAT) R 5,060 sf DB 1021 PG 410 (PLAT) ` 15,884 sf J 1 F-- General Construction notes for Stormwater GRAPHIC SCALE CHANNEL& FLOOD PROTECTION SUMMARY i UC-1 Management Plans 30 0 15 30 60 120 W w G 1. All dams and constructed fill to be within 957 Method of 9VAC25-870-66 �� I- LLJ of maximum dry density and 2% of optimum Pre-Dev. Method of 9VAC25-870-66 Method of 9VAC25-870-66 Method of 9VAC25-870-66it COUNTY OF ALBEMARLE moisture content. All fill material to be approved Post-Dev. Subarea Limits of Analysis for Channel Department of Community Development - ~ z V' by a geotechnical engineer. A geotechnical Subarea Channel Protection Compliance Flood Protection Compliance Limits of Analysis for Flood Protection O Q engineer is to be present during construction of ( IN FEET ) Protection On J LU dams. 1 inch = 30 fL A A Section B.3.a (Energy Balance) N/A (Energy Balance Satisified) Section C.2.b (10 yr. Post Flow < Pre Flow) N/A (10 yr. Post Flow < pre Flow Satisified) Construction Record Drawings (As -built) for VSMP 10� 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 followingis a list of information required on construction 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: q g 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 01 2: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 Y 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 Q provide design drawings as construction record drawings. W 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: 3. PRIVATE DESOTO COURT LOCATED WITHIN THE SWM EASEMENT, SHALL SERVE AS ACCESS B. The name and address of the firm and individual preparing the drawings on the title sheet. U) OVERVIEW: 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 ' ^ THE PROPOSED STORMWATER MANAGEMENT PLAN COMPLIES WITH PART IIB REQUIREMENTS 2. 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 EXCAVATION/GRADING (E.G. INTERIM/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 W U) � 3� 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. MANAGEMENT CALCULATIONS PACKET. 4' p P Y P p In INSTALLED. PLACED IN SUCCESSIVE UNIFORM LAYERS NOT MORE THAN 8 INCHES IN THICKNESS BEFORE 3. Updated Location with geo-coordinates of all facilities. � STORMWATER QUANTITY: 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 4. Verified Drains a Area ma s for the drainage area treated, and for drainage to the facilities. U)O 6. AT THE TIME OF THE PIPE INSTALLATION. BRIDGE SPECIFICATIONS, OR THE FILL EMBANKMENT MATERIAL SHALL MEET THE PIPE g p g g 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. 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. � 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 0- 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 t e of drainage structures, culvert/pipe size, weirs, materials, inlets or end treatment(s), Q IS MET VIA 9VAC25-870-66 SECTION C.2.b. FACILITY INSPECTIONS & MAINTENANCE AFTER CONSTRUCTION: UNDERGROUND DETENTION SYSTEM's JUNCTIONS. yp gC� inlet and outlet protection, alignment and invert elevations compared to design. PLEASE SEE THE ATTACHED STORMWATER MANAGEMENT CALCULATIONS PACKET FOR 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 & 8. Computations: For significant deviations from design, provide sealed computations verifying that � FOLLOWING THE INSTALLATION OF THE UNDERGROUND DETENTION SYSTEM. OUTFACE TO CONFIRM THE INVERTS AND TO ENSURE THE PROPOSED GRADES CAN BE i. FOR THE FIRST YEAR FOLLOWING CONSTRUCTION, THE SITE SHALL BE INSPECTED BY THE CONTRACTOR ACHIEVED. CONTRACTOR SHALL CONTACT COLLINS ENGINEERING OF ANY DISCREPANCIES IN the as -built condition is equivalent or better than design. N ADDITIONAL DETAILS PERTAINING TO THE STORMWATER QUANTITY COMPLIANCE. 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 THEY ARE 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 pU 10.BE SUBS PRIOR APPROVAL A E PIPE I ENGINEERING, THE DRAINAGE PIPE MATERIALS MAY must be within latted easements. Provide co ies of recorded documents. 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 p p PURCHASE NUTRIENT CREDITS PRIOR TO THE ISSUANCE OF A LAND DISTURBANCE z', THE CONTRACTOR SHALL PERFORM THE ANNUAL MAINTENANCE TASKS DESCRIBED BELOW IN #3. 11. Guardrail, fences or other safety provisions - Display the constructed location of all safety WITH CURRENT VDOT STANDARDS AND REQUIREMENTS. CONTRACTOR SHALL ENSURE PERMIT. provisions; fences, guardrail, including the type, length and applied end treatments compared to Lu AFTER THE FIRST YEAR THE OWNER SHALL PERFORM FOLLOW-UP INSPECTIONS ANNUALLY, AND AFTER EACH MINIMUM COVER REQUIREMENTS ARE MET WITH ANY PIPE SUBSTITUTION. design. _ PLEASE SEE THE ATTACHED CALCULATIONS PACKET AND THIS SHEET FOR ADDITIONAL SIGNIFICANT RAINFALL EVENT: o � DETAILS. 3. A SPRING MAINTENANCE INSPECTION AND CLEANUP SHALL BE CONDUCTED ANNUALLY. THE MAINTENANCE 12. Material layers - depths. t . media, stone layers, sand layers, keyways and cores must be verified as to JOB NO. 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 112066 DEBRIS & SEDIMENT AND ENSURING THE INTEGRITY OF THE WEIR PLATE, TRASH RACK AND OUTFALL & certifications. Biofilter media must be an approved state mix. 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. SCALE 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. 11 - 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. SHEET NO. FOR INSPECTION AND MAINTENANCE. 6 STR-1 VDOT STD. DOG INV.IN=343 INV. I N=345.7E 38.4f M F- N 365 " s 365 -Pp-� - Ln to iji. OF lD 0 Q P o p m Q O1 � N d mF 3 6o NMm� N �KO36o M 0 II VlzO-=1Y 1 10USE MH ^ - to z z PFROM 8 F_ z zVExIsT OPOSE 6 3 FROM 201 INE 355 355 350 350 12" HOPE LF @a z.00(Yo (345 345 12" HDPE I LF @a z00% 12" HOPE 340 13.43 LF @a 2.00% 340 M m M M 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 350 EXISTING G PROPOSED ACCESS MH W/ STAIRS FOR INSPECTION & MAINTENANCE RESTRICTIVE WEIR PLATE AT LOW POINT 7TO DRAIN THE SYSTE SEE DETAIL ON THIS SHEET PROPOSED ELEVATED 22" R 2-YR PEAK PIPEALLOWS MORE YRP WSE-346.74 SIGNIFICANT&LESS 345 WSE=346 -FREQUENT STORM EVENTS TO SAFELY BYPASS THE UNDERGROUND WEIR PLATE DETENTION SYSTEM INVERT=344.00 340 15n RCP 37-24 LF @a o.67% EX. 18" RCP PROPOSED LOWER 15" 82.63 LF @a 6.59% UNDERGROUND DETENTION PROPOSED 48" CMP SYS EM PRIMARY OU FAL UNDERGROUND EX. INV. OUT=338.00 DETENTION 335 SYSTEM .+ a00 . o ri o fM M M M M M M fr1 M 10+00 10+50 EMERGENCY BYPASS PROFILE PROFILE] HUGGER FLAT GASKET SINGLE BAR, BAND BOLT AND STRAP (SBBS) FLAT GASKET CONNECTION DETAIL (SBBS) 22/3"1 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. CONTACTYCUR CONTECH REPRESENTATIVE FOR AVAILABILITY. 3. BANDSARE SHAPEDTO MATCH THE PIPE -ARCH WHEN APPLICABLE. 4. BANDSARE NORMALLY FURNISHED AS FOLLOWS: • 12" THRU 4B" 1-PIECE 54' THRU 96' 2-PIECES • 102' THRU 144' 3-P IECES 5. BAND FASTENERS ARE ATTACHED WITH SPOT WELDS, RNETS OR HAND WELDS. 6. ALL CMP IS REROLLED TO HAVE ANNULAR END CORRUGATIONS OF 22l3"xi 12" 7. DIMENSIONS ARE SU BJECT TO MAN UFACTU RING TOLERANCES. S. 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 F_ 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. M 355 NOTE: ALL DRAINAGE STRUCTURES WITH A STR-7 VDOT STD. DI-3C (L=1o') DEPTH OF 12' OR GREATER SHALL HAVE TP=35Q,33 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 25.05 LF @a 0.54% ST-1 AS FOUND IN THE 2008 ROAD AND 345 BRIDGE STANDARDS. PROPOSED 48" CMP UNDERGROUND DETENTION SYSTEM @a o.5o%TO ATTENUATE RUNOFF CAUSED FROM THIS DEVELOPMENT. TOTAL CMP LENGTH=16o.00' 340 1 0+00 0+50 1+00 1+5o 2+00 2+50 STR-7 - STR-1 PROFILE 1/2" zinc plated hook attached with S/B' fastener _-1 M' ,1 ',, ..,..rv. Isometric Pipe � /t/I- HOPE plate (optional) culvert �ti•' HDPF structural plastic with 2-1/8" We. end 1/d" pleb manufactured by Plastic Solution. feeor equal .haven with oplioo.l plate HDPF stnnclvrnl pla.tic with 2 /a" holes and 1/4' plate SeCLion manufactured by Plastic Solutions Inc or equal 6/11 dia hole oa o 8(] o () o 0 0 single BMP EleVnhon si nce PLASTIC p D. Bnx sass DEBRIS CAGE SOLUTIONS lhomemar vt UN4 INC. 877-111 n pladic-nl,. .. 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: i. ALL FILLTO BE PLACED AT95% COMPACTION. z. MINIMUM 3.5' OF COVER MUST BE MAINTAINED OVER W/L. 3. MINIMUM OF i' OF VERTICAL SEPARATION FROM STORM SEWER & W/L AND 1.5' OF SEPARATION BETWEEN WIT. & 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, �jta CONTRACTOR SHALL CALL THE COUNTY INSPECTOR & f AO ENGINEERING DEPARTMENT 24-HOURS BEFORE ANY / I ANTICIPATED CONSTRUCTION ACTIVITIES FOR THE BMPs. THIS IS INCLUSIVE OF WHEN THE j L / UNDERGROUND DETENTION SYSTEM SUBGRADE IS _ L/ READY FOR PIPE CONSTRUCTION, BUT BEFORE PROPOSED LOWER 015" STONE BEDDING IS INSTALLED. UNDERGROUND DETENTION % j� SYSTEM PRIMARY OUTFALL / �0 j 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 SWM FACILITY & ACCESS EASEMENT SHOWN. DB., PG. / y 11 ��- --- - - - - - - / -- j I / ACCESS MANHOLE (TYP.) /� 048 INV. 344.00' L sn48° JNV. j _ 74 LF @ / 344.37/ 0.577 CD J I� 74 LF 0.5% 448" INV: / 0,48'" INV. / 344.40' : , 344.03' / RESTRICTIVE STEEL WEIR PLATE, AT LOW POINT, TO DRAIN PROPOSED ELEVATED 012" PIPE / PARKING LOT TO SERVE AS THE SYSTEM. SEE DETAIL ON THIS SHEET. ALLOWS MORE SIGNIFICANT & ACCESS TO SW FACILITY / / LESS FREQUENT STORM EVENTS TO SAFELY BYPASS THE UNDERGROUND DETENTION DETAIL: SCALE / 7j j I�/ UNDERGROUND DETENTION SYSTEM GRAPHIC SCALE 10 O 5 10 20 40 F� TRENCH CONDITION E M BAN KM ENT CONDITION FINAL BACKFILL (6 a) v� ' INITIAL BACKFILL / 8 H \ w 5a V IN SITU m4 O� w / a VA� MIN. CORR. o �Y DIAMETER COVER PROFILE 5 BEDDING 3� 12'd8 12" 22(3'x 1/2' FOUNDATION �2� /, 54' 96' 12" 3 x 1", 5' x 1' 102'-144" D/8 3 x 1', 5' x 1' INITIAL FILL ENVELOPEV fa BACKFILL REQUIREMENTS FOLLOW THE GUIDELINES OF AASHTO LRFD BRIDGE DESIGN (SEC 12) AND CONSTRUCTION (SEC 26) 1 MINIMUMTRENCH W DTH MUSTALLOW ROOM FOR PROPER COMPACTION OF HAUNCH MATERIALS UNDER THE PIPE. THE MINIMUM TRENCH WIDTH (12.6.6.1): PIPE <_ 12': D+ 16' PIPE )12":1.5D+12" la MINIMUM EMBANKMENT WIDTH (IN FEET) FOR INITIAL FILL ENVELOPE (12.6.6.2): PIPE, 24": 3.01) 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 MIN IMU M 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/H EL-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 EMBEDMENT TO MEET AASHTOA-1,A-2 OR A3 CLASSIFICATION, OR APPROVED EQUAL, COMPACTED TO 90% 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 LIFT HEIGHT TO PREVENT UNEVEN LOADING, AND THE LESSER OF 113 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. 6a TOTAL HEIGHTOF COMPACTED COVER FOR CONVENTIONAL HIGHWAY LOADS IS MEASURED FROM TOP OF PIPE TO BOTTOM OF FLEXIBLE PAVEMENT OR TOP OF RIGID PAVEMENT (12.8.6.3). 7 FINAL BACKFILL MATERIAL SELECTION AND COMPACTION REQUIREMENTS SHALL FOLLOW THE PROJECT PLANS AND SPECIFICATIONS PER TH E ENGINEER OF RECORD (265.4.1). NOTES: • GEOTEXTILE SHOULD BE CONSIDERED FOR USE TO PREVENT SOIL MIGRATION INTO VARYING SOIL TYPES (PROJECT ENGINEER). • 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. • 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. 048" WEIR PLATE DETAIL NOTE: SCALE:1"=5' WEIR PLATE TO BE BOLTED 0 SEALED TO DETENTION SYSTEM WITH WATERTIGHT CONNECTIONS. MANUFACTURE / INSTALL ONE (1) OVERFLOW WEIR (EQUIVALENT DIAMETER=1o.95") ACROSS THE STEEL PLATE (INVERT ELEVATION 347.66) MANUFACTURE / INSTALL ONE (i) 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 (1) 013" LOW -FLOW ORIFICE IN THE STEEL PLATE AT THE LOW POINT OF THE DETENTION SYSTEM (INVERT ELEVATION=344.00') 011J L\ �F 2'-6' 4- - PIPE G PLAN FRONT 48'Oto 90"0 FITTING REINFORCEMENT MAYBE REQUIRED BASED ON HEIGHT OF COVER AND LIVE LOAD CONDITION TYPICAL MANWAY DETAIL NOT TO SCALE PONT DOWNSTREAM DRAW RUNOFF CA NUT RAN RUNOFF INVERT LENGTH SLOPE CIA CAPA- VEL FLOW REMARKS STRUCTURE AREA COEFF. NCR ACCUM TN1E PAIL Q ELEVATIONS CITY TUNE ACRES c MN MN CXS. UPPER LOWER FEET FUFT. NCHES 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 NFORCED 12 GA. STEEL PLATE ELEV.=348.00' (TOP OF PIPE) 0 ELEV.=344.00' (BOTTOM OF PIPE) SCOTT/R. Cb'LLINS'Z HH Lic. No. 0357911n A 12/06/21 z w Vl � O Z z O U LU o� o a LU z Ep H o z p U) a LUUJIUJI li atf W r4 Q O p CD L9 ti C`M cr�yt�i VJ N z M WO 0') awe W N Owe U1 J > Q LU > L1J J I 0 J /� LU LLI U � z 'w V W Q Q U z W U z � �( LL.I �/� L1J F_ awe Q O Ln H (f) LU 2 L L awe O F_ O Ln J w z J10� Owe ® O O N W O w a Lf) JOB NO. 112066 SCALE AS SHOWN 10 SHEET NO. 7 0+00 0+50 1+00 1+5o 2+00 2+50 STR-7 - STR-1 PROFILE 1/2" zinc plated hook attached with S/B' fastener _-1 M' ,1 ',, ..,..rv. Isometric Pipe � /t/I- HOPE plate (optional) culvert �ti•' HDPF structural plastic with 2-1/8" We. end 1/d" pleb manufactured by Plastic Solution. feeor equal .haven with oplioo.l plate HDPF stnnclvrnl pla.tic with 2 /a" holes and 1/4' plate SeCLion manufactured by Plastic Solutions Inc or equal 6/11 dia hole oa o 8(] o () o 0 0 single BMP EleVnhon si nce PLASTIC p D. Bnx sass DEBRIS CAGE SOLUTIONS lhomemar vt UN4 INC. 877-111 n pladic-nl,. .. 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: i. ALL FILLTO BE PLACED AT95% COMPACTION. z. MINIMUM 3.5' OF COVER MUST BE MAINTAINED OVER W/L. 3. MINIMUM OF i' OF VERTICAL SEPARATION FROM STORM SEWER & W/L AND 1.5' OF SEPARATION BETWEEN WIT. & 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, �jta CONTRACTOR SHALL CALL THE COUNTY INSPECTOR & f AO ENGINEERING DEPARTMENT 24-HOURS BEFORE ANY / I ANTICIPATED CONSTRUCTION ACTIVITIES FOR THE BMPs. THIS IS INCLUSIVE OF WHEN THE j L / UNDERGROUND DETENTION SYSTEM SUBGRADE IS _ L/ READY FOR PIPE CONSTRUCTION, BUT BEFORE PROPOSED LOWER 015" STONE BEDDING IS INSTALLED. UNDERGROUND DETENTION % j� SYSTEM PRIMARY OUTFALL / �0 j 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 SWM FACILITY & ACCESS EASEMENT SHOWN. DB., PG. / y 11 ��- --- - - - - - - / -- j I / ACCESS MANHOLE (TYP.) /� 048 INV. 344.00' L sn48° JNV. j _ 74 LF @ / 344.37/ 0.577 CD J I� 74 LF 0.5% 448" INV: / 0,48'" INV. / 344.40' : , 344.03' / RESTRICTIVE STEEL WEIR PLATE, AT LOW POINT, TO DRAIN PROPOSED ELEVATED 012" PIPE / PARKING LOT TO SERVE AS THE SYSTEM. SEE DETAIL ON THIS SHEET. ALLOWS MORE SIGNIFICANT & ACCESS TO SW FACILITY / / LESS FREQUENT STORM EVENTS TO SAFELY BYPASS THE UNDERGROUND DETENTION DETAIL: SCALE / 7j j I�/ UNDERGROUND DETENTION SYSTEM GRAPHIC SCALE 10 O 5 10 20 40 F� TRENCH CONDITION E M BAN KM ENT CONDITION FINAL BACKFILL (6 a) v� ' INITIAL BACKFILL / 8 H \ w 5a V IN SITU m4 O� w / a VA� MIN. CORR. o �Y DIAMETER COVER PROFILE 5 BEDDING 3� 12'd8 12" 22(3'x 1/2' FOUNDATION �2� /, 54' 96' 12" 3 x 1", 5' x 1' 102'-144" D/8 3 x 1', 5' x 1' INITIAL FILL ENVELOPEV fa BACKFILL REQUIREMENTS FOLLOW THE GUIDELINES OF AASHTO LRFD BRIDGE DESIGN (SEC 12) AND CONSTRUCTION (SEC 26) 1 MINIMUMTRENCH W DTH MUSTALLOW ROOM FOR PROPER COMPACTION OF HAUNCH MATERIALS UNDER THE PIPE. THE MINIMUM TRENCH WIDTH (12.6.6.1): PIPE <_ 12': D+ 16' PIPE )12":1.5D+12" la MINIMUM EMBANKMENT WIDTH (IN FEET) FOR INITIAL FILL ENVELOPE (12.6.6.2): PIPE, 24": 3.01) 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 MIN IMU M 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/H EL-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 EMBEDMENT TO MEET AASHTOA-1,A-2 OR A3 CLASSIFICATION, OR APPROVED EQUAL, COMPACTED TO 90% 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 LIFT HEIGHT TO PREVENT UNEVEN LOADING, AND THE LESSER OF 113 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. 6a TOTAL HEIGHTOF COMPACTED COVER FOR CONVENTIONAL HIGHWAY LOADS IS MEASURED FROM TOP OF PIPE TO BOTTOM OF FLEXIBLE PAVEMENT OR TOP OF RIGID PAVEMENT (12.8.6.3). 7 FINAL BACKFILL MATERIAL SELECTION AND COMPACTION REQUIREMENTS SHALL FOLLOW THE PROJECT PLANS AND SPECIFICATIONS PER TH E ENGINEER OF RECORD (265.4.1). NOTES: • GEOTEXTILE SHOULD BE CONSIDERED FOR USE TO PREVENT SOIL MIGRATION INTO VARYING SOIL TYPES (PROJECT ENGINEER). • 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. • 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. 048" WEIR PLATE DETAIL NOTE: SCALE:1"=5' WEIR PLATE TO BE BOLTED 0 SEALED TO DETENTION SYSTEM WITH WATERTIGHT CONNECTIONS. MANUFACTURE / INSTALL ONE (1) OVERFLOW WEIR (EQUIVALENT DIAMETER=1o.95") ACROSS THE STEEL PLATE (INVERT ELEVATION 347.66) MANUFACTURE / INSTALL ONE (i) 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 (1) 013" LOW -FLOW ORIFICE IN THE STEEL PLATE AT THE LOW POINT OF THE DETENTION SYSTEM (INVERT ELEVATION=344.00') 011J L\ �F 2'-6' 4- - PIPE G PLAN FRONT 48'Oto 90"0 FITTING REINFORCEMENT MAYBE REQUIRED BASED ON HEIGHT OF COVER AND LIVE LOAD CONDITION TYPICAL MANWAY DETAIL NOT TO SCALE PONT DOWNSTREAM DRAW RUNOFF CA NUT RAN RUNOFF INVERT LENGTH SLOPE CIA CAPA- VEL FLOW REMARKS STRUCTURE AREA COEFF. NCR ACCUM TN1E PAIL Q ELEVATIONS CITY TUNE ACRES c MN MN CXS. UPPER LOWER FEET FUFT. NCHES 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 NFORCED 12 GA. STEEL PLATE ELEV.=348.00' (TOP OF PIPE) 0 ELEV.=344.00' (BOTTOM OF PIPE) SCOTT/R. Cb'LLINS'Z HH Lic. No. 0357911n A 12/06/21 z w Vl � O Z z O U LU o� o a LU z Ep H o z p U) a LUUJIUJI li atf W r4 Q O p CD L9 ti C`M cr�yt�i VJ N z M WO 0') awe W N Owe U1 J > Q LU > L1J J I 0 J /� LU LLI U � z 'w V W Q Q U z W U z � �( LL.I �/� L1J F_ awe Q O Ln H (f) LU 2 L L awe O F_ O Ln J w z J10� Owe ® O O N W O w a Lf) JOB NO. 112066 SCALE AS SHOWN 10 SHEET NO. 7 INITIAL FILL ENVELOPEV fa BACKFILL REQUIREMENTS FOLLOW THE GUIDELINES OF AASHTO LRFD BRIDGE DESIGN (SEC 12) AND CONSTRUCTION (SEC 26) 1 MINIMUMTRENCH W DTH MUSTALLOW ROOM FOR PROPER COMPACTION OF HAUNCH MATERIALS UNDER THE PIPE. THE MINIMUM TRENCH WIDTH (12.6.6.1): PIPE <_ 12': D+ 16' PIPE )12":1.5D+12" la MINIMUM EMBANKMENT WIDTH (IN FEET) FOR INITIAL FILL ENVELOPE (12.6.6.2): PIPE, 24": 3.01) 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 MIN IMU M 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/H EL-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 EMBEDMENT TO MEET AASHTOA-1,A-2 OR A3 CLASSIFICATION, OR APPROVED EQUAL, COMPACTED TO 90% 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 LIFT HEIGHT TO PREVENT UNEVEN LOADING, AND THE LESSER OF 113 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. 6a TOTAL HEIGHTOF COMPACTED COVER FOR CONVENTIONAL HIGHWAY LOADS IS MEASURED FROM TOP OF PIPE TO BOTTOM OF FLEXIBLE PAVEMENT OR TOP OF RIGID PAVEMENT (12.8.6.3). 7 FINAL BACKFILL MATERIAL SELECTION AND COMPACTION REQUIREMENTS SHALL FOLLOW THE PROJECT PLANS AND SPECIFICATIONS PER TH E ENGINEER OF RECORD (265.4.1). NOTES: • GEOTEXTILE SHOULD BE CONSIDERED FOR USE TO PREVENT SOIL MIGRATION INTO VARYING SOIL TYPES (PROJECT ENGINEER). • 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. • 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. 048" WEIR PLATE DETAIL NOTE: SCALE:1"=5' WEIR PLATE TO BE BOLTED 0 SEALED TO DETENTION SYSTEM WITH WATERTIGHT CONNECTIONS. MANUFACTURE / INSTALL ONE (1) OVERFLOW WEIR (EQUIVALENT DIAMETER=1o.95") ACROSS THE STEEL PLATE (INVERT ELEVATION 347.66) MANUFACTURE / INSTALL ONE (i) 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 (1) 013" LOW -FLOW ORIFICE IN THE STEEL PLATE AT THE LOW POINT OF THE DETENTION SYSTEM (INVERT ELEVATION=344.00') 011J L\ �F 2'-6' 4- - PIPE G PLAN FRONT 48'Oto 90"0 FITTING REINFORCEMENT MAYBE REQUIRED BASED ON HEIGHT OF COVER AND LIVE LOAD CONDITION TYPICAL MANWAY DETAIL NOT TO SCALE PONT DOWNSTREAM DRAW RUNOFF CA NUT RAN RUNOFF INVERT LENGTH SLOPE CIA CAPA- VEL FLOW REMARKS STRUCTURE AREA COEFF. NCR ACCUM TN1E PAIL Q ELEVATIONS CITY TUNE ACRES c MN MN CXS. UPPER LOWER FEET FUFT. NCHES 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 NFORCED 12 GA. STEEL PLATE ELEV.=348.00' (TOP OF PIPE) 0 ELEV.=344.00' (BOTTOM OF PIPE) SCOTT/R. Cb'LLINS'Z HH Lic. No. 0357911n A 12/06/21 z w Vl � O Z z O U LU o� o a LU z Ep H o z p U) a LUUJIUJI li atf W r4 Q O p CD L9 ti C`M cr�yt�i VJ N z M WO 0') awe W N Owe U1 J > Q LU > L1J J I 0 J /� LU LLI U � z 'w V W Q Q U z W U z � �( LL.I �/� L1J F_ awe Q O Ln H (f) LU 2 L L awe O F_ O Ln J w z J10� Owe ® O O N W O w a Lf) JOB NO. 112066 SCALE AS SHOWN 10 SHEET NO. 7 Total Design Storm Year = 10 7.79 10.13 16.43 ( IN FEET ) 1 inch = 10 ft. 048" WEIR PLATE DETAIL NOTE: SCALE:1"=5' WEIR PLATE TO BE BOLTED 0 SEALED TO DETENTION SYSTEM WITH WATERTIGHT CONNECTIONS. MANUFACTURE / INSTALL ONE (1) OVERFLOW WEIR (EQUIVALENT DIAMETER=1o.95") ACROSS THE STEEL PLATE (INVERT ELEVATION 347.66) MANUFACTURE / INSTALL ONE (i) 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 (1) 013" LOW -FLOW ORIFICE IN THE STEEL PLATE AT THE LOW POINT OF THE DETENTION SYSTEM (INVERT ELEVATION=344.00') 011J L\ �F 2'-6' 4- - PIPE G PLAN FRONT 48'Oto 90"0 FITTING REINFORCEMENT MAYBE REQUIRED BASED ON HEIGHT OF COVER AND LIVE LOAD CONDITION TYPICAL MANWAY DETAIL NOT TO SCALE PONT DOWNSTREAM DRAW RUNOFF CA NUT RAN RUNOFF INVERT LENGTH SLOPE CIA CAPA- VEL FLOW REMARKS STRUCTURE AREA COEFF. NCR ACCUM TN1E PAIL Q ELEVATIONS CITY TUNE ACRES c MN MN CXS. UPPER LOWER FEET FUFT. NCHES 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 NFORCED 12 GA. STEEL PLATE ELEV.=348.00' (TOP OF PIPE) 0 ELEV.=344.00' (BOTTOM OF PIPE) SCOTT/R. Cb'LLINS'Z HH Lic. No. 0357911n A 12/06/21 z w Vl � O Z z O U LU o� o a LU z Ep H o z p U) a LUUJIUJI li atf W r4 Q O p CD L9 ti C`M cr�yt�i VJ N z M WO 0') awe W N Owe U1 J > Q LU > L1J J I 0 J /� LU LLI U � z 'w V W Q Q U z W U z � �( LL.I �/� L1J F_ awe Q O Ln H (f) LU 2 L L awe O F_ O Ln J w z J10� Owe ® O O N W O w a Lf) JOB NO. 112066 SCALE AS SHOWN 10 SHEET NO. 7 NFORCED 12 GA. STEEL PLATE ELEV.=348.00' (TOP OF PIPE) 0 ELEV.=344.00' (BOTTOM OF PIPE) SCOTT/R. Cb'LLINS'Z HH Lic. No. 0357911n A 12/06/21 z w Vl � O Z z O U LU o� o a LU z Ep H o z p U) a LUUJIUJI li atf W r4 Q O p CD L9 ti C`M cr�yt�i VJ N z M WO 0') awe W N Owe U1 J > Q LU > L1J J I 0 J /� LU LLI U � z 'w V W Q Q U z W U z � �( LL.I �/� L1J F_ awe Q O Ln H (f) LU 2 L L awe O F_ O Ln J w z J10� Owe ® O O N W O w a Lf) JOB NO. 112066 SCALE AS SHOWN 10 SHEET NO. 7 W r4 Q O p CD L9 ti C`M cr�yt�i VJ N z M WO 0') awe W N Owe U1 J > Q LU > L1J J I 0 J /� LU LLI U � z 'w V W Q Q U z W U z � �( LL.I �/� L1J F_ awe Q O Ln H (f) LU 2 L L awe O F_ O Ln J w z J10� Owe ® O O N W O w a Lf) JOB NO. 112066 SCALE AS SHOWN 10 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 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 _ _ =t= 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 3/4' (#6) REBAR CAN BE CUT FLUSH - TO OUTSIDE OF RAIL (BAR LENGTH = 16%") OR BAR CAN EXTEND BEYOND RAILY2't - T., \ 3/8' 12" TYP. CENTER TO CENTER RUNG SPACING - 71 i r INTERRUPTED BAR REPLACEMENT, SEE NOTE6. ALL STEEL PER ASTM A36 BRICATION TOLERANCE: S)q' AT BAR AND REBAR: MILL �LERANCE APPLIES �6" HOLE w/ %" REBAR RUNG, WELD REBAR TO RUNG ON OUTSIDE OF STEEL RAIL 2Y2" x N" 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"x3'xy"x16'LONG ATV-0" SPACING. LONG LEG TO MAIN LINE CMP 4 PROJECT OUT. WELD TOP l'-T AND BOTTOM OF 3" LEG TO EACH 2z/3 x 2, 5 x 1, 3 x 1 ETC. MAX CORRUGATION CREST (THESE ANGLES SHOULD BE USED FOR LARGER DIAMETER a MAINLINES WHERE 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 OWNERAND PROJECT ENGINEER �G qN #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 @ T OCEW 1,210 6' x 6 #5 @ T OCEW 1,270 "ASSUMED SOIL BEARING G I II i � II I L--�T---- T(-----J r----yt ---f -_�---tt-----� I II r II I I \ I �f 1 , 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 PLANTSHOULD 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) Y,' FILLET WELDS 1' LONG ATTACH MENT ANC MINIMUM OF 4ANGLES 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 2N' x%' CORRUGATIONS (4) &" FILLET WELDS FROM EACH ANGLE TO CORRUGATION CREST (2 WELD EACH SIDE) L3'x3"xYl 5Y2" LONG fA 11 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 CORRUGATION CREST (2 WELDS EACH SIDE) (4)L3"x3'xNs 5}¢" LONG (2) Y4' FILLET WELDS 1' LONG FROM EACH ANGLE TO LADDER RAIL LADDER RAILS AND RUNGS PLAN - A F---- I - (4)y6" FILLET WELDS FROM EACH ANGLE TO CORRUGATION CREST (2 WELDS EACH SIDE) SY2 LONG - �A ELEVATION RI! 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: Too CU. YARD NET VOLUME OF CUT FOR LIMITS OF DISTURBANCE: 3.,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. MtLINS'Z Lic. No. 0357911n A 12/06/21 zz w O Z Z Ow .ZZ-, OV H W o J ¢ Lu w H z O0 Z c' 0 to .. ¢ a �W/ Id. Lu Lu ti W N a o o ti C`M M 0) N M z Q o W J N _j J > V/ Q W > W J � 0 Lr � LU z L u w Now- Lu U Q z W�I LiJ Lu ~ � O Q Lu O O � w z Illf 0- n O w oc x a V) JOB NO. 112066 SCALE AS SHOWN SHEET NO. 8