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HomeMy WebLinkAboutWPO201800068 Plan - VSMP 2019-07-25i 6 N�1auewberry A C A General C5.1 EROSION & SEDIMENT CONTROL DETAILS AND SOILS G1.0 COVER SHEET C5.2 CONSTRUCTION DETAILS C5. CONSTRUCTION DETAILS C6.0 PRE —DEVELOPED CONDITIONS UVI C6. "1 POST-�DE`:JELOPED CONDITIONS C6.2 STORMWATER NARRATIVE AND WATER C0,1 LEGEND AND NOTES e a CALC;� � QUALITY CO,2 EROSION , SEDIMENT CONTROL NOTES C6. —C6.4 HYRDOCAD ROUTINGS AND WA71ER C0.3 OVERALL PLAN QUANTITY CALCS C1,0 EXISTING CONDITIONS PLAN C2.0* IOLIRON PLAN EM C2.1 PHASE 1 ESC PLAN C2�2 PHASE 2 ESC PLAN C3.0* LAYOUT YOUT AND a111ATERIALS PLAN C11 GRADING AND DRAINAGE PLAN C3.2* RETAINING WALL CROSS SF` 00NS C4.0 STORM PROFILE r_ i 11.0* LANDSCAPE- PLAN L1,1 LANDSCAPE NOrLrS & DL TAILS Electrical C4.1 STORM PROrrILL AND CAL CU11_ATIOIN�) E1,0�` PL Cr;ICAI SITE PLAN C5,0 EROSION & SEDIMENT CONTROL MOTES E 1.1 * ELFC7RICAL DETAILS AND DETAILS E1.2* ELECTRICAL SPECI ICATICNS r1� r IVCr INCLUDED I%V rr//S IISAIP PI AN .-Fr, BUT CAN BE f' OUiVI) IN .SIT P 1IN SE r PARCEL_ NUMBER 07800-00-00-015CO ALBEMARLE COUNTY ZONING CLASSIFICATION: HC — HIGHWAY COMMERCIAL PROPOSED BUILDING MAXIMUM HEIGHT: N/A ALBEMARLE COUNTY MAGISTERIAL DISTRICT: RIWNNA DISTRICT FEMA FLOOD INSURANCE RATE MAP: ZONE X; AREAS TO BE DETERMINED OUTSIDE THE 0.2% ANNUAL CHANCE FL OODPLAIN MANAGED OVERLAY DISTRICTS: ENTRANCE CORRIDOR, STEEP SLOPES FRONT SETBACK: 10' FROM R/W SIDE/REAR SETBACK: PRIMARY STRUCTURES SHALL BE CONSTRUCTED AND SEPARATED IN ACCORDANCE WITH THE CURRENT EDITION OF THE BUILDING CODE. PARCEL ACREAGE: 4.772 AC PROPERTY NOT WITHIN AN ALBEMARLE COUNTY AND / OR CITY OF CHAR L OTTESVILLE WATER SUPPLY WATERSHED ��-01 C_ * 0 VIRGINIA UNIFORM STATEWIDE BUILDING CODE — 2012 DEPARTMENT OF ENVIRONMENTAL QUALITY VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK — 1002 NATIONAL ELECTRICAL CODE — 2011 ADA STANDARDS — 2010 LOCATION M (RIOT TO SCALE) 1 M��_&]Rwjjj OWNER: ENGINEER: AlUerrraarle County Service Authority Dewberry Engineers Inc. Alexander J. Morrison, R.E. Kevin Pennock Senior Civil Engineer 4805 Lake Brook Drive 168 Spotnap Road Suite 200 Charlottesville, Virginia 22911 Glen Allen, Virginia 23060 PH. (434) 977-451 1 ext. 116 PH, (04) 20.5-3.313o FAX (434) 979-0698 FAX (804) 290-7928 amorrison@,serviceauthority.org kpennock@dewwberry.com r -- E MAOOO'k L- - 'wim "U N I '&V ri 1& 10 1A AL13 E UUN SUBMITTAL SET NUMBER C1 PRELIMINARY 0 CONSTRUCTION 41 APPROVAL El REVISION El BIDDING El RECORD A . . . ....... glITIN �` iiiii; i SCALE-: 1" j 250' APPROVED by the Albemarle County Cornmunity Development Department Date File �AJr' Dewberry Engineers ineer�s Inc, � 4805 LAKE BROOK DRIVE SUITE 200 GLEN ALLEH, VA 23060 804.290.7957 (PHONE) 804.290.7928 (FA'0 KEY PLAN SCALE 2 01 f 28/ 10 HCC COUNTY COMMENTS 1 `I1/12/18 DAD COUNTY COMMENTS o. DATE �Y De���ipii�t� VISIONS DRAWN BY MtlM APPROVED BY DM CHECKED BY DRM ATE JANUARY 28, 2010 T 1TLE COVER SHEET PROJECT NO. 50075660 I � I GENERAL NOTES GENERAL i r- �aa'�i:+e��y .9. ....-0 ._, __... EXISTING UNDERGROUND ELECTRICAL LINE - x 1_ EXISTING OVERHEAD ELECTRICAL LINE t _ I�1G a. LII�,� ®XI.�1 r a5 EXISTING SANITARY LINE EXISTING; STORM LINE ._ ------ __ .._ EXISTING TELEPHONE r EXISTING OVERHEAD TELEPHONE r Y rX15T1NG TREELI(fE EXISTING WATERLINE E c.,,ISTING CONTOUR EXISTING POWER POLE EXISTING SWITCH EXISTING TIRANSFORME-R _ 1 EXISTING SITE LIGHT j EXISTING 'WATER VALVE �i , r ; , ,. � � S INLET EXISTING TC��?,rJ EXISTING MANHOLE • EXISTING FIRE HYDRANT EXISTING WATER MuE �EXISTING FENCE EXISTING FENCE EXISTING SIGN - EXISTING TREE EXISTING SANITARY CLEANOUT PROPOSED LIMITS OF DISTURBANCE PROPOSED LIMITS Orr CLEARING '= F pt DEMOIITION HARDSCAPE) r � / ' TY/SITD�OfT UTILIrS FEAT URES) N m xTREE DENIOLITION - - -- -- 620 __-- PROPOSED MAJOR CONTOUR 618 PROPOSED MINOR CONTOUR PROPOSED STORM LINE }34j PROPOSED MANHOLE PROPOSED CLEANOUT PROPOSED ASPHALT PAVEMENT PROPOSED CONCRETE PROPOSED RETAINING/SST WALL PROPOSED SIGN 3.01 SAFETY FENCE SAF 3.05 SILT FENCE @SF - - 3.07 INLET PROTECTION 3.08 CULVERT INLET PROTECTION 3.31 TEMPORARY SEEDING 3.32 PERMANENT SEEDING 3,33 MULCHING 3.36 BLANKET MATTING l 3.38 TREE PROTECTION p TP `I. THE "MISS UTILITY LAW" REQUIRES THE CONTRACTOR TO CALL (1-800-552-7001) AT LEAST 3 WORKING DAYS IN ADVANCE OF THE PLANNED WORK TO ALLOW TIME FOR MARKING, THAT THE MARKS DE RESPECTED AND PROTECTED, AND THAT EXCAVATION HE COMPLETED CAREFULLY, 2. CONTRACTOR SHALL BE RESPONSIBLE FOR SITE SECURITY, INCLUDING CON- AND OFF -SITE MATERIALS STORAGE, AND JOB SAFETY. CONSTRUCTION WORK AND MATERIALS SMALL COMPLY WITH LOCAL REGULATIONS, COMMONWEALTH OF VIRCANIA REGULATIONS, AND CODES, AND O.S.H.A, STANDARDS. -P ACCESSIBLE1 E r r E y 1 � SIDEWALKS fi 11 , CW 1 r c I �� � E re r S 1 . ROUTES, PARKING SPACES, Pv�iJiPS AND J/,-iLIaJJ,-iY� SHALW. BE CONSTRUCTED IN CONFORMANCE WITH THE �>=D�P,AL AMERICANS WITH DISABILITIES C S V�/. i-��1 I-rr1 r �r;�< (LIT E S A T, TAT_ LAWS AN R- � JLANTION I AND LOCAL REGULATIONS (WHICHEVER ARE MORE STRINGENT). lT). 4. CONTRACTOR SHALL IMMEDIATELY REPORT ANY DISCREPANCIES BETWEEN EXISTING CONDITIONS AND CONTRACT DOCUMENTS TO THE OANNER AND ENGINEER. 5. vArl rIN H� �IalI� OF 7-P SHALL �U1LDIi G FOOTPRINT, THE SITE. CONTRACTOR �-A,L PERFORM EARTHWORK OPERATIONS REQUIRED UP TO SJBORADP ELEVATIONS, V, WORK WITHIN THE LOCAL RIGHTS-OF-VVAY SHALL CONFORM TO LOCAL. MUNICIPAL STANDARDS. WORK WITHIN STATE RIGHTS -OF -WAY SHALL CONFORM TO THE LATEST VIRGINIA DEPARTMENT OF TRANSPOFTTATION ROAD AND BRIDGE` STANDARDS AND AOPECI lICATIGONS. 7. UPON Art/ARD OF CONTRACT, CONTRACTOR SHALL MAKE NECESSARY CONSTRUCTION NOTIFICATIONS AND APPLY FOR AND OBTAIN NECESSARY PERMITS, PAY FEES, i H -!_ r T, � � 1 s 1 IND ICATED r � A P � �- i. C J�JD D~�T BONDS ASSOCIATED WITH T C NI H� WORK I1 JDI aA i �D Oli1 THE DRAWINGS, �, I. I THE SPECIFICATIONS, AND 1N THE CONTRACT DOCUyIENT,�, DO NOT BEGIN WORK WITHOUT APPROPRIATE PERMITS. 0. CONTRACTOR SHALL HE RESPONSIBLE FOR ALL RELOCATIONS, (UNLESS OTHERWISE NOTED ON PLANS) INCLUDING BUT NOT LIMITED TO, ALL UTILITIES, STORM, DRAINAGE, SIGNS, IaNS, TRAFFIC SIGNALS R POL S, ETC., ., AS PP QUIRaD. ALL aJRSHALL rA_L 3E I�_sI1J A�GJR�AN�-� WITH GOVERNING AUTHORITIES REQUIREMENTS AND PROJEC T r - � -SHALLr rj _ r r 1 ri t p ..� APPROVED / 3= i M r t rI�ATJDiJ� A ID _,J r+i � RC IEJD BY SD�r�I, ALL COST 1" SHALL B_ INCLUDED lit BASE BID. 9. TRAFFIC SIGNAGE AND PAVEWENT MARKINGS SHALL CONFORM( TO THE MANUAL FOR UNIFORM TRAFFIC CONTROL DEVICES, LATEST EDITION. r i i' i' _ - 1 i i. 4 7. r, OUTSIDE i� r i-. � O T�I©� THE LIMITS OF PROPOSED WORK THAT AR�, LO..�TJIRI3 BY TrJ,� CONTRACTOR'S � OPERATION s ED RAG R �H�_= B� RESTORED BY Ti-J� CONTRACTOR TO THEIR ORIGINAL CONDITION AT THE CONTRACTOR'S EXPENSE. 11. IN THE_ w hT Tr\T SUSPECTED GO11Nt� rO SOIL, GROJ DVt TER, AND OTHER MomDIA ARrZ ENCOUNT ERED DURING EXCAVATION AND CONSTRUCTION ACTIVITIES f, E r P -1 i= i i BASED ON VISUAL, OLFACTORY (SMELL), OR OTHER i=�tIDP11GE, THE CONTRACTOR S1-1AL! STOP WORK 1N THE VICINITY C>r THE SUSPECT MATERIAL "i'O AVOID FURTHER S P F' P SPREADING rS OWNER ENGINEER - t �a \ � r � ,�Ps�>=AADIIaIG OF THE MATERIAL, AND SHALL NOTIFY THE OVJiv�R AND �NC�INE�R IMMEDIATELY SO THAT THE APPROPRIATE TESTING AND SUBSEQUENT ACTION CAN ICE TAKEN, E f? / � G I :r � P � 1�. CONTRACTOR SHAD PREVENT DUST, ��DIM�I�JT, AND DEBRIS rRO�/I EXITING Trl� SITE AND SHALL �E R�SPON:�101u,E FOR CLEANUP, REPAIRS AND CORRECTIVE ACTION IF SUCH OCCURS, AT THE CONTRACTOR'S EXPENSE WITH NO ADDITIONAL COST TO THE OWNER, 13. DAMAGE RESULTING FROM CONSTRUCTION LOADS AND EQUIPMENT SHALL BE REPAIRED BY THE CONTRACTOR AT \10 ADDITIONAL COST TO OWNER. I4. CONTRACTOR SHALL CONTROL ST<ORMVA/ATER RUNOFP DUPING CGONSTRUCTIO'N 1'O PREVENT ADVERSE IMPACTS TO ON -SITE AND OFF -SITE AREAS, AND SHALL BE RESPONSIBLE FOR REPAIRING RESULTING DAMAGES, IF ANY, AT NO COST TO OWNER, `15. THIS PROJECT DISTURBS LESS THAN ONE ACRE OF LAND AND DOES NOT -ALL WITHIN THE VIRGINIA STORM!NATER MANAGEMENT PROGRAM (VSMP), GENERAL CONSTRUCTION PERMIT (GCP) PROGRAM AS ADMINISTERED BY THE VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY (IDEQ) UNDER THE JURISDICTION OF THE EPA, % THE CONTRACTOR SHALL ADHERE TO ALL TERMS, CONDITIONS, AND REQUIREMENTS AS OUTLIVED IN THE VSMP GENERAL PERMIT FOR STORMWATER DISCHARGE ASSOCIATED WITH CONSTRUCTION ACTIVITIES. `17. ALL CONTRACTOR IAYDOWN AREAS SHALL BE LOCATED WITHIN THE LIMITS OF DISTURBANCE LINE AND PROTECTED WITH SAFETY AND./OR EROSION CONTROL MEASURES, 100. IF ANY EXISTING STRUCTURES TO REMAIN ARE DAMAGED DURING CONSTRUCTION, IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO REPAIR AND/OR REPLACE THE DAMAGED STRUCTURE AS NECESSARY TO RETURN IT TO EXISTING CONDITIONS OR BETTER, AT THE CONTRACTOR'S EXPENSE, WITH NO ADDITIONAL COST TO THE OWN ER. ER. EXISTING CONDITIONS 1. BASE PLAN: THE PROPERTY LINES, TOPOGRAPHY, AND EXISTING SITE FEATURES SHOWN WERE PREPARED BY OTHERS AND PROVIDED TO DEWBERRY BY ALBEMAFRLE COUNT`( SERVICE AUTHORITY, DEWBERRY PERFORMED A LIMITED TOPOGRAPHY SURVEY IN APRIL 2018 IN THE AREA OF THE RETAINING WALL SITE WAS LAST VISUALLY INSPECTED IN SEPTEMBER 2018. 2. TOPOGRAPHY: ELEVATIONS ARE BASED ON DATUM NAVD 88 AND NAD83 FOR HORIZONTAL CONTROL. GRADING I. PRIOR TO START OF CONSTRUCTION, CONTRACTOR SHALL VERIFY EXISTING PAVEMENT ELEVATIONS AT INTERFACE WITH PROPOSED PAVEMENTS AND EXISTING 3 r: - r TRANSITIONS r GROUND ELEVATIONS ADJACENT TO DRAINAGE OUTLETS TO ASSURE PROPEL TRANSITIONS BETWEEN EXISTING AND PROPOSED FACILITIES. 2, CONTRACTOR SHALL ADJUST AND/OR SAW CUT EXISTING PAVEMENT AS NECE SSARY TO ENSURE A SMOOTH TRANSITION AND MAINTAIN POSITIVE DRAINAGE. 1 CONTRACTOR SHALL ENSURE POSITIVE (DRAINAGE AWAY 'FROM BUILDINGS. >1'. ANY PROPERTY MONUMENTATION DISTURBED DURING CONSTRUCTION SHALL BE SET OR RESET BY A PROFESSIONAL_ LICENSED SURVEYOR, PAID BY THE CONTRACTOR, ,�T NO EXPENSE TO THE OWNER. LAYOUTAMID MATERIALS 1. SYMBOLS AND LEGENDS OF PROJECT FEATURES ARE GRAPHIC REPRESEI 1TATIONS AND ARE NOT NECESSARILY SCALED TO THEIR ACTUAL DIMENSIONS OR LOCATIONS ON THE DRAWINGS. THE CONTRACTOR SHALL REFER TO THE DETAIL SHEET DIMENSIONS, MANUFACTURER'S LITERATURE, SHOP DRAWINGS AND FIELD MEASUREMENTS OF SUPPLIED PRODUCTS FOR LAYOUT OF THE PROJECT FEATURES. 2. CONTRACTOR SHALL NOT RELY SOLELY ON ELECTRONIC VERSIONS OF PLANS, SPECIFI( ATIONS AND DATA FILES THAT ARE OBTAINED FROM THE DESIGNERS, BUT SHALL VERIFY LOCATION OF PROJECT FEATURES IN ACCORDANCE WITH THE PAPER COPIES; OF THE PLANS AND SPECIFICATIONS THAT ARE SUPPLIED AS PART OF THE CONTRACT DOCUMENTS, 3. DIMENSIONS ARE FROM FACE OF CURB, FACE OF BUILDING, FACE OF WALL, AND CENTER LINE OF PAVEMENT MARKINGS, UNLESS OTHERWISE NOTED. 4CURB RADII ARE 5 FEET TO FACE OF CURB UNLESS OTHERWISE NOTED. 5. CURBING SHALL BE VDOT STANDARD UNLESS OTHERWISE INDICATED ON THE PLANS. lytm 'I, THE LOCATIONS, SIZE AND TYPES OF EXISTING UTILITIES ARE SHOWN AS AN APPROXIMATE REPRESENTATION ONLY. THE OWNER OR ITS REPRESENTATIVE(S) HAVE NOT INDEPENDENTLY VERIFIED THIS INFORMATION AS SHOWN ON THE PLANS, THE UTILITY INFORMATION SHOWN DOES NOT GUARANTEE THE ACTUAL EXISTENCE, SERVICEABILITY, OR OTHER DATA CONCERNING THE UTILITIES, NOR DOES IT GUARANTEE AGAINST THE POSSIBILITY THAT ADDITIONAL UTILITIES MAY BE PRESENT THAT ARE NOT SHOWN ON THE PLANS. PRIOR TO ORDERING MATERIALS AND BEGINNING CONSTRUCTION, THE CONTRACTOR SHALL VERIFY AND DETERMINE THE EXACT r _ t L N � \ - C' � P LOCATIONS, SIZES A.. ELEVATIONS " UTILITIES � SHALL � TION.� S S D aLE ,- S OF THE POINTS O� CONNECTIONS TO EXISTING � INTERFERENCES � S G JTI_ITI_� AND �HAa� CONFIRM THAT THERE ARE NO INT�RF_RENC�S WITH EXISTING UTILITIES AND THE PROPOSED UTILITY ROUTES, INCLUDING ROUTES WITHIN PUBLIC RIGHTS OF WAY. PP 2. .INHERE AN EXISTING UTILITY IS FOUND TO CONFLICT WITH THE PROPOSEDWORK, OR EXISTING CONDITIONSDIFFER FROM THOSE SHOWN SUCH THAT THE WORK CANNOT BE COMPLETED AS INTENDED, THE LOCATION, ELEVATION, AND SIZE OF THE UTILITY SHALL BE ACCURATELY DETERMINED WITHOUT DELAY BY THE CONTRACTOR, AND THE INFORMATION FURNISHED IN WRITING TO THE OWNER'S REPRESENTATIVES) FOR THE RESOLUTION OF THE CONFLICT. CONTRACTOR'S FAILURE TO NOTIFY PRIOR TO PERFORMING ADDITIONAL WORK RELEASES 0111/NER FROM OBLIGATIONS FOR ADDITIONAL PAYMENTS WHICH OTHERWISE MAY BE WARRANTED TO RESOLVE THE CONFLICT, 3. RIM ELEVATIONS FOR SEINER MANHOLES, WATER VALVE COVERS, GAS GATES, ELECTRIC AND TELEPHONE PULL BOXES, AND MANHOLES, AND OTHER SUCH ITEMS, ARE APPROXIMATE AND SHALL BE SET/RESET AS FOLLOWS: a. PAVEMENTS AND CONCRETE SURFACES. FLUSH 0. ALL SURFACES ALONG ACCESSIBLE ROUTES: FLUSH c. LANDSCAPE, LOAM AND SEED, AND OTHER EARTH SURFACE AREAS: ONE INCH ABOVE SURROUNDING AREA AND TAPER EARTH TO THE RIM ELEVATION, 4, THE LOCATION SIZE, DEPTH AND SPECIFICATIONS FOR CONSTRUCTION OF PROPOSED PRIVATE UTILITY SERVICES SHALL BE INSTALLED ACCORDING TO THE REQUIREMENTS PROVIDED BY, AND APPROVED BY, THE RESPECTIVE UTILITY COMPANY (GAS, TELEPHONE, ELECTRIC, FIRE ALARM, ETC.). FINAL DESIGN LOADS AND LOCATIONS TO BE COORDINATED WITH OWNER AND ARCHITECT 5. CONTRACTOR SHALL COORDINATE, AND MAKE ARRANGEMENTS FOR, AND SHALL BE RESPONSIBLE FOR PAYING FEES FOR POLE AND/OR GUY WIRE RELOCATION/ALTERATION AND ADJUSTMENT OF ELECTRIC, TELEPHONE, CABLE, AND ANY OTHER PRIVATE UTILITIES, WHETHER WORK IS PERFORMED BY CONTRACTOR OR BY THE UTILITY COMPANY. 8. CONTRACTOR SHALL COORDINATE WITH ELECTRICAL CONTRACTOR AND SHALL FURNISH EXCAVATION, INSTALLATION AND BACKFILL OF ELECTRICAL FURNISHED SITEWORK RELATED ITEMS SUCH AS PULL BOXES, CONDUITS, DUCT BANKS, LIGHT POLE BASES, AND CONCRETE PADS, CONTRACTOR SHALL FURNISH CONCRETE ENCASEMENT OF DUCTBANKS IF REQUIRED BY THE UTILITY COMPANY AND AS INDICATED ON THE DRAWINGS. 7, ALL FILL MATERIAL IS TO BE IN PLACE AND COMPACTED TO TOP OF PIPE ELEVATION BEFORE INSTALLATION OF PROPOSED UTILITIES. 8. CONTRACTOR SHALL NOTIFY THE UTILITY AUTHORITY'S INSPECTOR 72 HOURS IN ADVANCE OF START OF WORK AND RECEIVE INSPECTOR APPROVAL BEFORE 9. UNDERGROUND UTILITIES SHALL BE INSTALLED, INSPECTED AND APPROVED BY GOVERNING AUTHORITY OR OWNER'S REPRESENTATIVE PRIOR TO BACKFILLING. 10. ALL CONCRETE FOR ENCASEMENTS SHALL HAVE A MINIMUM 20 DAY COMPRESSION STRENGTH AT 3000 PSI, `y t", i' F i f '� 1 .1 � �, e SPECIFICATIONS 1 INSTALLATION OF THE 1 � r � MATERIALS AND INS O 11, CONTRACTOR I� RESPONSIBLE FOR COi�i1PLYli.1CO VIITr) STATE AND LOCAL REGULATIONS aPECII=ICATIC�I.I� WITH REGARDS TO ia. � WATER AND SEINER LINES. a E i fi r 1 r �, GOVERNING ES, THIS AND THE 12, CONTRACTOR 1S RESPONSIBLE FOR ALL NECESSARY INSPECTIONS AND/OR CERTIFICATIONS REQUIRED 13Y GOC�E� AND/OR OO I�RI IINIO AUTHORITIES. FINAL CONVECTIONS OF THE SERVICE SHALL BE CGOI IPIETED 30 DAY 3 PRIOR TO GINNER POSSESSION 11 CONT CTOR SHALL COORDINATE WITH ALL PRIVATE UTILITY COMPANIES FOR INSTALLATION REQUIREMENTS AND SPECIFICATIONS OF PRIVATE UTILITIES, P " P / to i WARNING - `� SHALL �, J t I R '� 1G • � APPLICATIONS, TI HA �. INSTALL � .. V< 14, PROVIDE DETECTABLE �'JAR�IING TAPE (, MIN. WIDTH) OVEF, I-,l_I_ NON-FERROUS PIPE. FOR DIRECTIONAL DRIL�. A�'P�I.,A..OiI �, CONTRACTOR S _ TRACER WIRE. TRACER WIRE SHALL TERMINATE TERMINATE AT ACCESSIBLE STRUCTURES AT DIRECTIONAL. DRILL START/TERMINATION POINTS, DRAINAGE PiPRIOR TO START OF CONSTRUCTION, CONTRACTOR SHALL VERIFY EXISTING GROUND ELE l�TION� ADJACENT TO OFMINA�� OUTLETS1 O ASSURE RE PROPER TRANSITIONS BETP/EEN EXISTING AND PROPOSED FACILITIES. 2, PRECAST STRUCTURES MAY BE USED AT CONTRACTORS OPTION, ,a, PRIOR TO JOB COMPLETION, STORM PIPES SHALL HE CL0NNED OUT TO REMOVE ALL SILT AND DEBRIS BUILD-UP, 'I•, ALL STORM PIPE ENTERING STRUCTURES SHALL BE GROUTED OR KOR=N-SEAL CONNECTIONS TO ASSURE CONNECTION AT STRUCTURE IS WATERTIGHT. & ALL RCP STORM PIP- SHALL NAt� 0 RIG GASKETS R ��1P�.R TIGHTNESS. IO-TNESS. - SCHEDULE 40 Pt 'HALL L e HAVE SOLVENT !_yD JOINTS, HOPE SHALL LL HAVE OLr_ WAL L SMOOTH INTERIOR WITH GASKETED JOINTS, ALL STORM SEWEDiiANHOLES IN PAVED AREAS SHALL HAVE TRAFFIC RAYED (H-20) FRAME AND COVERS AND COMERS SHALL BE LABELED "STORi�JI SErNER°i¢ - i ACCORDANCE # i - 3 .� H r S t't S ES l - r 1 SEWERS, AN D 0 T� � �� GRADING DRAINAGE C PLANS AND 7, SET DRAINAGE BASIN, INLET RIMS, AND INVERTS � OF �EJJ�R�, DRAINS AND DITCHES IN ,-CCORDAI ��� WITH ELEVATIONS ON Trl� GR ID NG . ,i 1D �A.i ,� � �� I PROFILES. CONTRACTOR IS RESPONSIBLE FOR POSITIVE .DRAINAGE. 8. ALL STORM STRUCTURE INTERIOR DIAMETERS SHALL BE DETERMINED BY THE MANUFACTURER BASED ON THE PIPE CONFIGURATIONS SHOWN ON THESE PLANS AND VDOT STANDARDS, THE ilrllNltllUM DIAMETER SHALL 1BE 4 FEET. 9. ALL FILL MATERIAL IS TO BE IN PLACE AND COMPACTED TO TOP OF PIPE ELEVATION BEFORE INSTALLATION OF PROPOSED STORM SEWER. 10. ALL STORM STRUCTURES SHALL HAVE A SMOOTH UNIFORM MORTAR INVERT FROM INVERT IN TO INVERT OUT PER VDOT 1S-1 DETAIL. PLANT PROTECTION ii ! - 1, TREES AND VEGETATION ADJACENT TO T ACTUAL JV CT TEMPORARYFEI�ICING (CHAIN LINK FENCE FOR TREES; HE A WORK AREA OR BORROW AREA ARE TO BE PROTECTED WITH( , CONSTRUCTION SAFETY FENCE FOR VEGETATION) TO PRESERVE EXISTING ITEMS INDICATED TO REMAIN AND TO PREVENT DAMAGE TO PROPERTY. P � y P CUTILITIES i , e, UNDER AROUND SHALL 13 y I. UTILITY TRENCHING SHALL B E LOCATED SO C PANTS TO R=MAJI<I. UTIL Y TRENCHI� TALL NOT E THAT CONSTRUCTION WILL NOT DE1Mi�CE OR D�STR f THE LOCATED CLOSER THAN 1 0 FOR EACH V IN DIAMETER UP TO A MAXIMUM OF LO -0 FOR TREES TO RI=1VlAlN, DAMAGED TREES AND PLANTS SHALL BE RESTORED TO THE SATISFACTION OF THE OWNER, 1 THE PARKING OF VEHICLES AND STORAGE OF ANY CONSTRUCTION EQUIPMENT OR MATERIALS SHALL NOT OCCUR UNDER THE DRIP LINE OF TREES TO BE PROTECTED. 4. REPLACE TREES AND PLANTS DAMAGED BY CONSTRUCTION OPERATION WITH ONES OF �i�1�AR SIZE AND APPROVED 3Y THE OWNER. TREES �S LOST OR DAMAGED SHALL BE REPLACED ON AN INCH FOR INCH BASIS. FOR EXAMPLE, AN 8-INCH TREE CAN BE REPLACED BY TWO (2) 4-INCH TREES. ALL REPLACEMENT TREES SHALL BE 1.5" CALIPER OR LARGER, COORDINATE WITH OWNER FOR EXACT TYPE AND LOCATION OF REPLACEMENT TREES. EARTHWORK AND COMPACTION `L 90% COMPACTION SHALL BE OBTAINED FOR ALL LANDSCAPED AREAS. 95% COMPACTION SHALL BE OBTAINED FOR ALL OTHER FILL AREAS, INCLUDING UNDER SIDEWALKS, ROADS, PARKING LOTS, UTILITIES, AND APPURTENANCES, COMPACTION SHALL BE ACHIEVED IN ACCORDANCE WITH ASTM-D898, STANDARD PROCTOR DENSITY. ALBEMARLE COUNTY GENERAL 1, PRIOR TO ANY CONSTRUCTION WITHIN ANY EXISTING PUBLIC RIGHT-OF-WAY, INCLUDING CONNECTION TO ANY EXISTING ROAD, A PERMIT SHALL BE OBTAINED FROM THE VIRGINIA DEPARTMENT OF TRANSPORTATION (V>OIOT). THIS PLAN AS DRAWN MAY NOT ACCURATELY REFLECT THE REQUIREMENTS OF THE- PERMIT. WHERE ANY DISCREPANCIES OCCUR, THE REQUIREMENTS OF THE PERMIT SHALL GOVERN. 2. ALL MATERIALS AND CONSTRUCTION METHODS SHALL CO3w IRINI TO CURRENT SPECIFICATION AN STANDARDS OF JL0TUNLESS OTHERWISE NOTED, 3. EROSION AND SILTATION CONTROL MEASURES SHALL BE PROVIDED IN ACCORDANCE WITH THE APPROVED EROSION CONTROL. PLAN AND SHALL BE INSTALLED PRIOR TO ANY CLEARING, GRADIN(3, OR OTHER CONSTRUCTION. 4. ALL SLOPES AND (DISTURBED ARES ARE TO BE FERTFILIZED, SEEDED AND MULCHED. 5. THE MAXIMUM ALLOWABLE SLOPE 13 2.1 (HORI2O'TA: IPRT1CL). WHERE- E SONABLr OBTAINABLE, E, THE >ESSER S LJE r OF f •1 DR BETTER ARE TO BE- ACHIEVED, . 0, PAVED RIP -RAP OR STABILIZATION MAT LINED DITCH MAY BE REQUIRED WHEN IN ' E OPINION Or THE COUNTY ENGINEER, Oil DESIGNEE IT IS) DEEMED EMED NECESSARY �d N .. _1 �R, � `N�����AR l IN _ - - r P � - ORDER TO STABILIZE A DRAINAGE C�rI4-INEL. 7, ALL TRAFFIC CONTROL SIGNS SHAG CONFIRM WITH THE VIRGINIA MANUAL FOR UNIFORM TRAFFIC CONTROL DEVICES. 8, UNLESS OTHERWISE NOTED, ALL CONCRETE PIPE SHALL BE REINFORCED CONCRETE PIPE, CLASS III: 9. ALL EXCAVATION FOR UNDERGROUI"ID PIPE INSTALLATION MUST COMPLY WITH OSHA STANDARDS FOR THE CONSTRUCTION INDUSTRY (29 COFR PART 11928). GENERALACSA WATER AND SEWER CONDITIONS L WORK SHALL BE SUBJECT TO INSPECTION BY AL BEMARLE COUNTY SERVICE AUTHORITY INSPECTORS. THE CONTRACTOR WILL BE RESPONSIBLE FOR NOTIFYING THE PROPER SERVICE AUTHORITY OFFICIALS AT THE START OF WORK. 2. THE LOCATION OF EXISTING UTILITIES ACROSS THIE LINE OF THE PROPOSED WORK ARE NOT NECESSARILY SHOWN ON THE PUANS AND WHERE SHOWN, ARE ONLY APPIROXIMATELY CORRECT. THE CONTRACTOR SHALL ON HIS OWN INITIATIVE LOCATE ALL UNDERGROUND LINES AND STRUCTURES AS NECESSARY. 3. ALL MATERIALS AND CONSTRUCTION SHALL COMPLY WITH THE CURRENT EDITION! OF THE GENERAL WATER AND SEWER CONSTRUCTION SPECIFICATIONS AS ADOPTED BY THE ALBEMARLE COUNTY SERVICE AUTHORITY. A DATUM FOR ALL ELEVATIONS SHOWN IN NATIONAL GEODETIC SURVEY. 5. THE CONTRACTOR SHALL BE RESPONSIBLE FOR NOTIFYING "MISS UTILITY' (1-800-552-7001), 0. ALL WATER AND SEWER PIPES SHALL HAVE A MINIMUM OF 3.5 FT, OF COVER MEASURED FROM THE TOP OF PIPE, OVER THE CENTERLINE OF PIPE. THIS INCLUDES ALL FIRE HYDRANT LINES, SERVICE LATERALS AND VA/ATERLINES, ETC, 7. ALL WATER AND SEWER APPURTENANCES ARE TO BE LOCATED OUTSIDE OF ROADSIDE DITCHES. 8. VALVES ON DEAD-END LINES SHALL BE RODDED TO PROVIDE ADEQUATE RESTRAINT FOR THE VALVE DURING A FUTURE EXTENSION Or THE LINE. Dewberry Engineers Inc. \ 4805 EKE BROOK DRIVE SUITE 200 GLEN ALLEN, VA 23060 80 290.7957 (PHONE) 804.290.7928 (FAX) - i 0 W' LLi Lu i_j W Lu cc cc CL Co LIJ SEAL x ' p !t:# 13y�, E .�; viIli f CiTIFNlrl!l�lll Anfl v I dJ yy a J..i- r •7F - v-'p,4s 41 KEY PLAN SCALE I F_ I I 2 01 /28J19 HCG COUNTY COMMENTS 1 11 f 12/1 H DAB COUNTY CCOMME I ITS No. (DATE o'r D--,cri do REVISIONS DRAIJAIN BY APPROVED BY CHECKED BY DATE MNM CORM DRM JANUARY 28, 2010 TITLE LEuf-'*END AND 9 uewberry 1-0 I N ra EROSION & SEDIMENT CONTROL PROJECT DESCRIPTION THIS PROJECT CONSISTS Orr THE EXPANSION OF AN EXISTING PARKING lr�� AT THE �_BEMAP_r COUNTY SERVICE i'AUTHORITY , �PEPA�n� SCENTER. THE SITE _ ,r LOCATED AT THE INTERSECTION WITH SPOTNAP ROAD AND PEOPLE PLACE BEHIND THE BMW OF CHARLOTTESVILLE DEALERSHIP ON ROUTE 250, THE PROJECT AREA, WILL DISTURB APPROXIMATELY 0.42 ACRES AND 0.27 ACRES OF THIS WILL BE IMPERVIOUS. EXISTING SITE CONDITIONS THE EXISTING SITE CONSISTS OF THE ALBEMARLE COUNTY SERVICE AUTHORITY OPERATIONS CENTER VJITr1 PARKING, GARAGES, AND SOME GRASSY IfiNDSCAPcD AREAS. SOILS ACCORDING TO MRCS DATA, SOILS ON -SITE CONSIST OF RABUN CLAY LOAM (MAP UNIT 71 D), 15 TO 25 PERCENT SLOPES. CONTRACTOR SHALL BE RESPONSIBLE FOR TESTING, EROSION AND SEDIMENT CONTROL, MAINTENANCE, AND STABILIZATION OF SOILS DURING CONSTRUCTION, ADJACENT PROPERTY i HE EXISTING SITE IS BORDERED BY BMW OF CHARLOTTESVILLE TO THE NORTH, FLOW VOLKSWAGEN OF CHARLOTTESVILLE TO THE EAST, RESIDENTIAL PROPERTY TO THE SOUTH, AND PEOPLES PLACE 10 THE WEST. OFFSITE ACTIVITIES NO OFF -SITE AREAS WILL BE DISTURBED DURING THIS DEVELOPMENT. STORMWATER RUNOFF CONSIDERATIONS THIS PROJECT WILL INCREASE IMPERVIOUS AREA AND STORMWATER RUNOFF, STORMWATER CALCULATIONS CAN BE FOUND ON THE STORMWATER CALCULATIONS SHEET. CRITICAL AREAS r, EXISTING r f` r H PARKING AREA, 1 F r Fl 1 THERE ARE LX,�TII�lG AREAS OF STEEP SCORES AT II-IE EDGE OF Tri_ PROPOSED P,-\RI<IEJ� WHERE THE I`�1_PJ WALL 4ViLi BE LOCATED. THE INTENT OF THIS EROSION AND SEDIMENT CONTROL PLAN IS TO GUIDE THE CONTRACTOR IN IMPLEMENTING ACCEPTABLE MEASURES, INFRASTRUCTURE, AND MAINTENANCE PROGRAMS THAT WILL MINIMIZE THE AMOUNT OF EROSION AND RESULTING SEDIMENT THAT WILL TAKE PLACE DURING THE CONSTRUCTION OF THIS PROJECT. ALI VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO THE MINIMUM STANDARDS AND SPECIFICATIONS OF THE VA EROSION & SEDIMENT CONTROL HANDBOOK, EROSION AND SEDIMENT CONTROL MEASURES STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SAFETY FENCE (VESCH STD. & SPEC. 3.01): A PROTECTIVE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE, SAFETY FENCE PROHIBITS THE UNDESIRABLE USE OF AN EROSION CONTROL MEASURE BY THE PUBLIC. FOR USE IN AREAS POTENTIALLY UNSAFE FOR THE PUBLIC. I- H PAVED CONSTRUC TION ENTRANCE ( ALBEMARAL COUNTY DESIGN STANDARD PAVED PAD, PER ALBEMARLE COUNTY STANDARD DETAIL, LOCATED AT POINTS OF VEHICULAR INGRESS AND EGRESS. CONSTRUCTION ENTRANCES REDUCE THE AMOUNT OF MUD TRANSPORT ONTO PAVED PUBLIC ROADS BY VEH{CI ES OR RUNOFF. CONSTRUCTION ENTRANCES SHALL BE I IMITED TO THOSE SHOWN ON THE PLANS OR OTHERWISE APPROVED BY THE SOIL EROSION OFFICER. SUPPLEMENTAL DRAWINGS SHALL BE PROVIDED BY THE CONTRACTOR FOR APPROVAL IF ADDITIONAL ENTRANCES ARE REQUIRED. SILT FENCE (VESCH STD. & SPEC. 3.05): A TEMPORARY SEDIMENT BARRIER CONSISTING OF A FILTER FABRIC STRETCHED ACROSS AND ATTACHED TO SUPPORTING POSTS AND ENTRENCHED. SILT FENCE IS INSTALLED TO INTERCEPT AND DETAlN S\i1ALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION IN ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE AND TO DECREASE THE VELOCITY OF SHEET FLOWS AND LOW -TO -MODERATE CHANNEL FLOWS. STORM DRAIN INLET PROTECTION (VESCI-I STD. & SPEC. 3.07): F r FILTER i EXCAVATED IMPOUNDING AREA AROUND A STORM DRAIN DROP INLET OR CURB INLET. STORM DRAIN INLET PROTECTION A SEDIMENT OR Air. PREVENTS SEDIMENT FROM ENTERING STORM DRAIN AGE SYSTEMS PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA. FOR USE WHERE STORM DRAIN INLETS ARE TO BE MADE OPERATIONAL BEFORE PERMANENT STABILIZATION OF THE CORRESPONDING DISTURBED DRAINAGE AREA. DIFFERENT TYPES OF STRUCTURES ARE APPLICABLE TO DIFFERENT CONDITIONS. CULVERT INLET PROTECTION (VESCH STD. & SPEC. 3.08): A SEDIMENT FILTER LOCATED AT THE INLET TO STORM SEWER CULVERTS, CULVERT INLET PROTECTION PREVENT SEDIMENT FROM ENTERING, ACCUMULATING B 1 r r r� ' DRAINAGE SYSTEM PRIOR A� I r 7 STABILIZATION iADISTURBEDn - IN fWD BEING TRANSFERRED BHT v CULVERT AND ASSOCIATED DR„IfNAGF S (ST�.M PRIOR T 0 P ERM�I\cN, .�TrsB(LIZATiON OF �, PROJECT AREA. THIS PROTECTION ALSO PROVIDES EROSION CONTROL AT CULVERT INLETS DURING THE PHASE OF A PROJECT WHERE ELEVATION AND DRAINAGE PATTERNS CHANGE, CAUSING ORIGINAL CONTROL MEASURES TO BE INEFFECTIVE OR IN NEED OF REMOVAL. TEMPORARY DIVERSION DIKE (VESCH STD, & SPEC. 3.09): A TEMPORARY RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLORING DISTURBED AREA, A TEMPORARY DIVERSION DIKE DIVERTS STORM RUNOFF FROM UPSLOPE DRAINAGE AREAS AWAY FROM UNPROTECTED DISTURBED ARF/AS AND SLOPE TO A STABILIZED OUTLET. THIS STRUCTURE ALSO DIVERTS SEDIMENT -LADEN RUNOFF FROM A DISTURBED AREA TO A SEDIMENT TRAPPING FACILITY SUCH AS A SEDIMENT TRAP OR SEDIMENT BASIN. TEMPORARY SEDIMENT TRAP (VESCH STD. & SPEC, 3,13): A TEMPORARY PONDING AREA FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT WITH A STONE OUTLET, TEMPORARY SEDIMENT TRAPS DE IAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS LONG ENOUGH TO ALLOW THE MAJORITY OF THE SEDIMENT TO SETTLE OUT, TEMPORARY SEEDING (VESCH STD. & SPEC. 3.31): THE ESTABLISHMENT OF A TEMPORARY VEGETATIVE COVER ON DISTURBED AREAS BY SEEDING WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TEMPORARY SEEDING REDUCES EROSION AND SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE FOR A PERIOD OF MORE THAN 14 DAYS. TEMPORARY SEEDING REDUCES 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. FOR USE WHERE EXPOSED SOIL SURFACES ARE NOT TO BE FINE -GRADED FOR PERIODS OF LONGER THAN 14 DAYS, SUCH AREAS INCLUDED DENUDED AREAS, SOIL STOCKPILES, DIKES, DAMS, SIDES OF SEDIMENT BASINS, TEMPORARY R;OADBANKS, ETC. (SEE MS71 AND MS'fr'2). A PERMANENT VEGETATIVE COVER SHALL BE APPLIED TO AREAS THAT WILL BE LEFT DORMANT FOR A PERIODOF MORE THAN ONE (1) YEAR. PERMANENT SEEDING (VESCH STD. & SPEC. 3.32): THE ESTABLISHMENT OF A PERENNIAL VEGETATIVE COVER ON DISTURBED AREAS BY PLANTING SEED. PERMANENT SEEDING REDUCES EROSION AND DECREASES SEDIMENT YIELD FROM DISTURBED AREAS. PERMANENT SEEDING STABILIZES DISTURBED AREAS IN A MANNER THAT IS ECONOMICAL, ADAPTABLE TO SITE CONDITIONS, AND ALLOWS SELECTION OF THE MOST APPROPRIATE PLANT MATERIAL. (PERMANENT SEEDING ALSO IMPROVES WILDLIFE HABITAT AND ENHANCES NATURAL BEAUTY. FOR USE IN DISTURBED AREAS WHERE PERMANENT, LONG-LIVEM VEGETATIVE COVER IS NEEDED TO STABILIZE THE SOIL. FOR USE WHERE ROUGH -GRADED AREAS WHICH WILL NOT BE BROUGHT TO FINAL GRADE FOR A `FEAR OR MORE. TREE PRESERVATION& PROTECTION (VESCH STD. & SPEC, 3.38) PROVIDE SUPER SILT FENCE OR WELDED WIRE FENCE FOR PROTECTION OF DESIRABLE TREES FROM MECHANICAL AND OTHER INJURY DURING LAND DISTURBING AND CONSTRUCTION ACTIVITY. TREE PRESERVATION AND PROTECTION IS USED TO) ENSURE THE SURVIVAL OF THE DESIRABLE TREES WHERE THEY WILL BE EFFECTIVE FOR EROSION AND SEDIMENT CONTROL, WATERSHED PROTECTION, LANDSCAPE BEAUTIFICATION, DUST, AND POLLUTION CONTROL, NOISE REDUCTION, SHADE, AND OTHER ENVIRONMENTAL BENEFITS WHILE THE LAND IS BEING iCONVERTED FROM FOREST TO URBAN -TYPE USES. FOR USE IN TREE -INHABITED AREAS SUBJECT TO LAND DISTURBING ACTIVITIES. DUST CONTROL (VESCH STD. & SPEC. 3,39) APPLICATION OF TEMPORARY SEEDING (VESCH & SPEC. 3.31), MULCHING (VESCH STD. & SPEC. 3.35), IRRIGATION, SPRAY -ON ADHESIVES OR BARRIERS TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUC-E THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT HEALTH HAZARDS, TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE DURING LAND DISTURBING, DEMOLITION AND CONSTRUCTION ACTIVITIES, ROOT PRUNING (ANSI A300-2000 PRUNING STANDARDS.) SHALL BE COMPLETED IN A SINGLE OPERATION WHERE INDICATED ON THIS PLAIN. TRENCHES SHALL BE A MINIMUM 18 INCHES DEEP AND BACKFILLED IMMEDIATELY. IF TREE PROTECTION/SILT FENCE IS TO BE INSTALLED AT THE LIMITS, THE ROOT PRUNING TRENCH MAY BE USED FOR TREE PROTECTION/SILT FENCE INSTALLATION. THE ROOT PRUNING SHALL BE CONDUCTED WITH THE SUPERVISION OF A CERTIFIED ARBORIST, AND UFM SHAI L BE INFORMED WHEN ALL ROOT PRUNING AND TREE PROTECTION FENCE INSTALLATION IS COMPLETE. TEMPORARY AND PERMANENT STABILIZATION TEMPORARY SEEDING SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE, BUT WILL REMAIN DORMANT FOR LONGER THAN 14 DAYS AND LESS THAN ONE YEAR. THIS INCLUDES, BUT IS NOT LIMITED TO, STOCKPILES AND BORROVW AREAS. PERMANENT SEEDING SHALL BE APPLIED AND A PERENNIAL VEGETATIVE COVERING SHALL BE ESTABLISHED ON DISTURBED AREAS WITHIN SEVEN DAYS OF BEING BROUGHT TO FINAL GRADE ON AREAS NOT OTHERWISE PROTECTED. SELECTION OF THE SEED MIXTURE SHALL DEPEND ON THE TIME OF YEAR IT IS TO BE APPLIED, THE PROJECT IS MORE THAN 10,000 SF AND WILL REQUIRE EROSION AND SEDIMENT REVIEW APPROVAL. SEDIMENTEROSION & CONTROL MAINTENANCE IN GENERAL, THE PROJECT AREA SHALL BE CHECKED WITHIN 24 HOURS OF EACH RAINFALL EVENT OR WEEKLY IF NO RAINFALL EVENT HAS OCCURRED, WHICH EVER IS MORE FREQUENT TO ENSURE THAT ALL EROSION AND SEDIMENT CONTROL DEVICES ARE IN WORKING ORDER, EROSION CONTROL DEVICES SHALL BE MAINTAINED ACCORDING TO THE FOLLOWING SCHEDULE: I SAFETY FENCE SAFETY FENCE SHALL BE CHECKED REGULARLY FOR WEATHER -RELATED OR OTHER DAMAGE. ANY NECESSARY REPAIRS MUST BE MADE IMMEDIATELY. CARE - SHOULD BE TAKEN TO SECURE ALL ACCESS POINTS (GATr-ES) AT THE END OF EACH WORK DAY, ALL LOCKING DEVICES MUST BE REPAIRED OR REPLACED AS NECESSARY. 2, PAVED CONSTRUCTION ENTRANCE THE ENTRANCE SHALL BE MAINTAINED IN CONDITION WHICH WILL PREVENT TRACKING OR FLOW OF MUD ONTO PUBLIC RIGHT-OF-WAY. THIS MAY REQUIRE PERIODIC WASHING OF EXISTING PAVEMENT AS CONDITIONS DEMAND AND REPAIR AND/OR CLEANOUT OF ANY STRUCTURES USED TO TRAP SEDIMENT. ALL MATERIALS SPILLED, DROPPED, WASHED OR TRACKED FROM VEHICLES ONTO ROADWAYS OR INTO STORM DRAINS MUST BE REMOVED IMMEDIATELY. THE USE OF WATER TRUCKS TO REMOVE MATERIALS DROPPED, WASHED OR TRACKED ONTO ROADWAYS WILL NOT BE PERMITTED UNDER ANY CIRCUMSTANCES. 3. SILT FENCE r ,1 r r F REMOVED APPROXIMATELY A. SEDIMENT DEPOSITS SHALL BE R_MOV_D WHEN DEPOSITS REACH A OX EL ONE-HALF THE HEIGHT OF THE BARRIER. B. FABRIC SHALT BE REPLACED IF IT HAS DECOMPOSED OR BECOME INEFFECTIVE. 4. SEEDING THE SEEDED AREAS SHALL BE CHECKED REGULARLY TO CENSURE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RESEEDED AS NEEDED. 5. STORM DRAIN INLET PROTECTION SEDIMENT DEPOSITS SHALL BE REMOVED WHEN DEPOSITS REACH APPROXIMATELY ONE-HALF THE DESIGN DEPTH OF THE TRAP. 6. TEMPORARY SEDIMENT TRAP A. SEDIMENT SHALL BE REMOVED AND THE TRAP RESTORED TO ITS ORIGINAL DIMENSIONS WHEN THE SEDIMENT HAS ACCUMULATED TO ONE HALF THE DESIGN VOLUME OF THE WET STORAGE. SEDIMENT REMOVAL FROM THE BASIN SHAI L BE DEPOSITED IN A SUITABLE AREA AND IN SUCH A MANNER THAT IT WILL NOT ERODE AND CAUSE SEDIMENTATION PROBLEMS. B. FILTER STONE SHALL BE REGULARLY CHECKED TO ENSURE THAT FILTRATION PERFORMANCE IS MAINTAINED. STONE CHOKED WITH SEDIMENT SHALL BE REMOVED AND CLEANED OR REPLACED. C. THE STRUCTURE SHOULD BE CHECKED REGULARLY TO Ei\ISURE THAT IT IS STRUCTURALLY SOUND AND HAS NOT BEEN DAMAGED BY EROSION OR CONSTRUCTION EQUIPMENT. THE HEIGHT OF THE STONE CUTLET SHOULD BE CHECKED TO ENSURE THAT ITS CENTER IS AT LEAST 1 FOOT BELOW THE TOP OF THE EMBANKMENT. 7. DIVERSION DIKE THE MEASURE SHALL BE INSPECTED AFTER EVERY STORM AND REPAIRS MADE TO THE DIKE, FLOW CHANNEL, OUTLET OR SEDIMENT TRAPPING FACILITY AS r r r i /r r i\ \ FEV ENT F r S 0 _V TWO WEEKS, WHETHER A STORM EV_INT HAS OCCURRED OR NOT THE DIVERSION Dli�c SHALL BE INSPECTED AND REPAIRS NECESSARY. ONCE EVERY N 0 MADE IF NEEDED. DAMAGES CAUSED BY CONSTRUCTION TRAFFIC' OR OTHER ACTIVITY MUST BE REPAIRED BEFORE THE END OF EACH WORKING DAY. 8. CULVERT INLET PROTECTION THE STRUCTURE SHALL BE INSPECTED AFTER EACH RAIN AND (REPAIRS MADE AS NEEDED. AGGREGATE SHALL BE REPLACED OR CLEANED WHEN INSPECTION REVEALS THAT CLOGGED VOIDS ARE CAUSING PONDIING PROBLEMS WHICH INTERFERE WITH ON -SITE CONSTRUCTION. SEDIMENT SHALT BE REMOVED AND THE IMPOUNDMENT RESTORED TO ITS ORIGINAL [DIMENSIONS WHEN SEDIMENT HAS ACCUMULATED TO ONE-HALF THE DESIGN DEPTH. r r r I.. - „ r r r rt r - c /. REMOVED SEDIMENT SHALL BE DEPOSITED IN A SUITABLE AREA AND IN SUCH A MANNER THAT IT WILL NOT ERODE AND PAUSE SEDIMENTATION PROBLEMS. -r r REMOVED . , ' r r r r- r r r TEMPORARY STRUCTURES SHALL BE r�EM10VED vVHEI``J THEY HAVE. SERVED THEIR USEFUL PURPOSE, BUT NOT Bel -ORE THE UPSLOPE AREA HAS BEEN PERMANENTLY STABILIZED. 9. DUST CONTROL IN PLANNING AND MAINTENANCE FOR DUST CONTROL, LIMITING 1THE AMOUNT OF SOIL DISTURBANCE AT ANY ONE TIME SHOULD BE A KEY OBJECTIVE. TEMPORARY STABILIZATION MEASURES SHALL BE CHECKED REGUILARLY AND RE -APPLIED AS NECESSARY TO REDUCE DUST EMISSIONS. THE CONTRACTOR SHAI L BE RESPONSIBLE FOR PROVIDING AN EMPLOYEE WHO WILL BE RESPONSIBLE OF THE EROSION AND SEDIMENT CONTROL PLAIN AND REQUIREIv1ENTS FOR THE PROJECT THAT IS CERTIFIED BY THE VIRGINIA DEPARTMENT OF CONSERVATION OR THE VIRGINIA DEPARTMENT OF ENVIRONMENTAI QUALITY AND RECREATION AS A RESPONSIBLE LAND DISTURBER (RLD)., THE NAN1L Or THE CONTRaCnTOR'S RIED AND COPY 0F HS CURRENT CERTIFICATION SHALL BE ,PROVIDED IV THE OWNER, ENGINEER AND EROSION 8SEDIMENT CONTROL PLAN APPROVING � AUTHORITY PRIOR 10 IS��J„NC_ T� THE i OTICE i0 PROCEED FOR THE PROJECT. ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND THE VIRGINIA EROSION AND SEDIMENT CONTROL REGULATIONS (9VAC25-840). ES-2: THE PLAN -APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE-COINSTRUCTION CONFERENCE ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. THE NAME OF THE RESPONSIBLE LAND DISTURBER MUST BE PROVIDED TO THE PLAN -APPROVING AUTHORITY PRIOR TO ACTUAL ENGAGEMENT IN THE LAND -DISTURBING ACTIVITY SHOWN ON THE APPROVED PLAN. IF THE NAME IS NOT PROVIDED PRIOR T01 ENGAGING IN THE LAND -DISTURBING ACTIVITY, THE PL AN'S APPROVAL WILL BE REVOKED. 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 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, ES-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. ES-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, AFTER WHICH, UPON APPROVAL OF THE PLAN -APPROVING AUTHORITY, THE CONTROLS SHALL BE REMOVED. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE REMOVAL OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. ES-8: DURING DEWATERING OPERATIONS, WATER SHALL BE PUMPED INTO AN APPROVED FILTERING DEVICE. ES-9: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES AT LEAST AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT OR WEEKLY. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. ES-10: THE CONTRACTOR IS RESPONSIBLE FOR THE DAILY REMOVAL OF SEDIMENT THAT HAS BEEN TRANSPORTED ONTO A PAVED OR PUBLIC ROAD SURFACE. ES-11: SEEDING OPERATIONS SHALL BE INITIATED WITHIN 7 DAYS AFTER REACHING FINAL GRADE OR UPON SUSPENSION OF GRADING OPERATIONS FOR ANTICIPATED DURATION OF GREATER THAN 14 DAYS OR UPON COMPLETION OF GRADING OPERATIONS FOR A SPECIFIC AREA. ES-12: THE CONTRACTOR SHALL BE RESPONSIBLE FOR PREVENTING SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOILS WHICH MAY PRESENT HEALTH HAZARDS, TRAFFIC SAFETY PROBLEMS, OR HARM ANIIMAL OR PLANT LIFE. ES-13: A VIRGINIA STORMWATER MANAGEMENT PROGRAM PERMIT (VSIMPP) FOR THE DISCHARGE OF STORMWATER FROM CONSTRUCTION ACTIVITIES IS REQUIRED FOR PROJECTS DISTURBING 1 ACRE OR GREATER. VISIT THE VIRGINIA STORMWATER MANAGEMENT PROGRAM PERMITTING WEB PAGE AT FIT P://WWW DEO.STATE.VA US ZPROGRAMS/WATER/STORNIWATERMANAGEM ENT/VSMPPERMITS /CONSTRUCTIONGENERALPERMIT.ASPX FOR MORE INFORMATION, EROSION E T MINIMUM STANDARDS 1. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAI 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 FOR LONGER THAN 14 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. SPECIFIC FERTILIZER, NUTRIENT, & SEED APPLICATION MUST MEET EROSION AND SEDIMENT CONTROL (ESC) TECHNICAL BULLETIN ETIN NO. 4 NUTRIENT MANAGEMENT FOR DEVELOPMENT PROJECTS. DOWNLOAD AT http://ww4y.deq.virginia.gov/Programs/IjVater%StormwaterManagement/Publications,cispxl, MULCHING REQUIREMENTS MUST MEET VESC HANDBOOK MULCHING TABLE 3.35A. 2. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCKPILES AND BORROW AREAS SHALL BE STABILIZED OR PROTECTED WITH SEDIMENT TRAPPING MEASURES. THE APPLICANT IS RESPONSIBLE FOR THE TEMPORARY PROTECTION AND PERMANENT STABIL IZATION OF ALL SOIL STOCKPII ES ON SITE AS WELL AS BORROW AREAS AND SOIL INTENTIONALLY TRANSPORTED FROM THE PROJECT SITE. ANY BORROW, FILL, OR WASTE SUCH AS DEMOLITION MATERIAL MUST BE PROVIDED FROM OR HAULED TO A PERMITTED, APPROVED, SUPPLY OR WASTE AREA. ALL OFFSITE ACTIVITY IS NOT PART OF THIS PERMIT/ PLAN SET AND IS ADDRESSED UNDER SEPARATE COVER. SOIL STOCKPILES .ARE NOT ANTICIPATED ONSITE. 3. A PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS NOT OTHERWISE PERMANENTLY STABILIZED. PERNIAJNENI VEGETATION SHALL NOT BE CONSIDERED ESTABLISHED UNTIL A GROUND COVER IS ACHIEVED THAT IS UNIFORM, MATURE ENOUGH TO SURVIVE AND WILL INHIBIT EROSION, 4. SEDIMENT BASINS AND TRAPS, PERIMETER DIKES, SEDIMENT BARRIERS AND OTHER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP IN ANY LAND -DISTURBING ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE, 5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION. 6. SEDIMENT TRAPS AND SEDIMENT BASINS SHALL BE DESIGNED AND CONSTRUCTED BASED UPON THE TOTAL DRAINAGE AREA, TO BE SERVED BY THE TRAP OR BASIN, A. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT TRAP SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA AND THE TRAP SHALL ONLY CONTROL DRAINAGE AREAS LESS THAN THREE ACRES. B. SURFACE RUNOFF FROM DISTURBED AREAS THAT IS COMPRISED OF FLOW FROM DRAINAGE AREAS GREATER THAN OR EQUAL TO THREE ACRES SHALL BE CONTROLLED BY A SEDIMENT BASIN, THE MINIMUM STORAGE CAPACITY OF A SEDIMENT BASIN SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA. THE OUTFALL SYSTEM SHALL, AT A MINIMUM, MAINTAIN THE STRUCTURAL INTEGRITY OF THE BASIN DURING A 25-YEAR STORM1 OF 24-HOUR DURATION. RUNOFF COEFFICIENTS USED IN RUNOFF CALCULATIONS SHALL CORRESPOND TO A BARE EARTH CONDITION OR THOSE CONDITIONS EXPECTED TO EXIST WHILE THE SEDIMENT BASIN IS UTILIZED. 8. CQNCENTRA,IED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL SLOPES UNLESS CONTAINED WITHIN AN ADEQUATE TEMPORARY OR PERMANENT CHANNEL, i STRUCTURE, FLUME OR SLOPE DRAIN S I RU. I URF• 9, VVf FNEVER WATER SEEPS FROMA SLOPE FACE, ADEQUATE DRAINAGE OR OTHER PROTECTION SHALL BE PROVIDED, 10. ALL STORM SEWERINLETS ;T ARE Ni P. \ �' FSEDIMENT- r r __E (H/ Rc MADE OPERABLE DURING CONSTRUCTION SHALL BE PROTECTED SO THAT LADEN WATER CANNOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED TO REMOVE SEDIMENT. 11. BEFORE NEWLY CONSTRUCTED STORMWAIER CONVEYANCE CHANNELS OR PIPES ARE MADE OPERATIONAL, ADEQUATE OUTLET PROTECTION AND ANY REQUIRED TEMPORARY OR PERMANENT CHANNEL LINING SHALL BE INSTALLED IN BOTH THE CONVEYANCE CHANNEL AND RECEIVING CHANNEL. 12. WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED, PRECAUTIONS SHALL BE TAKEN TO MINIMIZE ENCROACHMENT, CONTROL SEDIMENT TRANSPORT AND STABILIZE THE WORK AREA TO THE GREATEST EXTENT POSSIBI 'E DURING CONSTRUCTION. NON -ERODIBLE MATERIAL SHALL BE USED FOR THE CONSTRUCTION OF CAUSEWAYS AND COFFERDAMS. EARTHEN FILL MAY BE USED FOR THESE 13. WHEN A LIVE WATERCOURSE MUST BE CROSSED BY CONSTRUCTION VEHICLES MORE THAN TWICE IN ANY SIX-MONTH PERIOD, A TEMPORARY VEHICULAR, STREAM CROSSING CONSTRUCTED OF NON -ERODIBLE MATERIAL SHALL BE PROVIDED. 14. ALL APPLICABLE FEDERAL, STATE AND LOCAL REGULATIONS PERTAINING TO WORKING IN OR CROSSING LIVE WATERCOURSES SHALL BE MET. 15. THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER WORK IN THE WATERCOURSE IS COMPLETED. 16. UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE WITH THE FOLLOWING STANDARDS IN ADDITION TO OTHER APPLICABLE CRITERIA: A. NO MORE THAN 500 LINEAR FEET OF TRENCH MAY BE OPENED AT ONE TIME. B. EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES. - r C. EFFLUENT FROM DEWATERING OPErRATIONS SMALL BE FILTERED OR PASSED THROUGH AN APPROVED SEDIMENT TRAPPING DEVICE, OR BOTH, AND DISCHARGED IN A MANNER THAT DOES NOT ADVERSELY AFFECT FLOWING STREAMS OR OFF -SITE PROPERTY. D. MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE PROPERLY COMPACTED IN ORDER TO MINIMIZE EROSION AND PROMOTE STABILIZATION. E. RESTABIL IZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THESE REGULATIONS. F. APPLICABLE SAFETY REGULATIONS SHALL BE COMPLIED WITH. 17. WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED OR PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF n - - r 1 r _ WHERE , 1 F - - SEDIMENT _Y VEHICULAR T E 3 cHl �1R RACKING ONTO THE PAVED SURFACE. NH_R_ SEDIMENT IS TRANSPORTED TCD ONTO PA 0 U RA OR 0 A PAVED R PUBLIC ROAD SURFACE, THE ROAD A HI A r SURFACE SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVE FROM THE ROADS BY SHOVELING SWEEPING D LI OR _EP AND TRANSPORTED TO A SEDIMENT CONTROI DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER. THIS PROVISION SHALL APPLY TO INDIVIDUAL DEVELOPMENT LOTS AS WELL AS TO LARGER LAND -DISTURBING ACTIVITIES. 18. 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 REGULATORY AUTHORITY. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. 19. PROPERTIES AND WATERWAYS DOWNSBREAMJ FROM DEVELOPMENT SITES SHALL BE PROTECTED FROM SEDIMENT DEPOSITION, EROSION AND DAMAGE DUE TO INCREASES IN VOLUME, VELOCITY AND PEAK FLOW RATE OF STORMWATER RUNOFF FOR THE STATED FREQUENCY STORM OF 24-HOUR DURATION IN ACCORDANCE_ WITH THE STANDARDS AND ,..r<ITEI-ti�' FOND IN VESC REGULATION 94!„C25 CA0 40 MS i9 PARTS ,, i! FOUND AT V/E�, „GF HTTP:/ AIS.VIRG-1NIA.GGV,/CGI-BIN /LEGP604.EX, E?OOQ+REG+9VAC25-840-40 "I , INSTALL_ THE CONSTRUCTION ENTRIANCE, TREE PROTECTION AROUND THE EXISTING TREES NEAR THE PARKING LOT, AND THE SAFETY � EN E 2. INSTALL IiNLET PROTECTION OiN THIS EXISTING INLETS. 3. INSTALL THE SILT FENCE AND REMAINING TREE PROTECTION. 4, CLEAR AND GRUB THE EXISTING TREES. TEMPORARILY SEED ANY DENUDED AREAS THAT WILL REMAIN UNDISTURBED FOR MORE THAN 7 DAYS, 5. CONSTRUCT THE SEGMENTAL RETAIINING WALL, DETENTION AND STORMSEWER SYSTEM, AND ROUGH GRADE THE SITE, INSTALL THE INLET PROTECTION, 6. DEMOLISH THE EXISTING CURB, ASPHALT PAVEMENT, AND OTHER ITEMS SHOWN TO BE REMOVED, WHILE STILL DIVERTING THE RUNOFF TO STORM STRUCTURE #25. 7. INSTALL_ THE CURB AND GUTTER AND COMPACTED STONE BASE FOR THE PARKING LOT ASPHALT. REMOVE THE CONSTRUCTION ENTRANCE AS NECESSARY TO COMPLETE CONJSTRUCTION OF THE STONE BASE. 8. PAVE THE PARKING LOT, PERMANEINTLY SEED ANY UNPAVED AREA, INSTALL THE LANDSCAPING AND FLUSH THE DETENTION SYSTEM OF ANY SOIL. 9. UPON SUCCESSFUL GERMINATION OF THE PERM1ANEtN I SEED TO MINIMUM STANDARDS, AND UPON APPROVAL BY THE LOCAL AUTHORITY, REMOVE THE REMAINING E&S MEASURES. Dewberry Engineers Inc. 430EE5 LAKE BROOK DRIVE SUITE 200 GLEN ALLEN, NIA 23060 004.P30.7957 (PHONE) 304.2M7928 (FAX) KEY PLAN SCALE 2 01/28/19 HiCG COUNTY COMMENTS 1 11/12/18 DAB COUNTY COMMENTS No. DATE BY Description REVISIONS DHAxAIN BY APPROVED BY CHECKED BY DATE MNM m DIRM JAN UAfRY 28, 2019 PROJECT NO. -50075 660 SHEET NO. 1 1 > _wDewberry 0 o` s d F J N J ✓ n� . . Y{r sf /' ✓ �✓ � J t ! e� ' ' y+' F d I aI � is Y t J ✓ ',�'- f, I r/ F �, ,J' , JF�• f ,,� , F A y' rf �r✓.. V ti f IN `t..z7 1 r E v'.1l 1, rah: r,' 1 ✓ } ! ri 3 =,r fEf y fy=tl✓ � ✓ ,pf y ji' r ��s)� � v �✓-rf I v J .. J ,,,. f J i/ ✓ x . tJ �j 0 Z 1 1. EV r r F! 7 } i 3 ,� 9 t J J f✓j 1 � 3 O A i0_L x rf , "`t is ei JJr�s3?� t ll f r ,d, s r rY 1 J 1 V f% 1 =: � t� f_.✓ fir 3.. MANAGED E w t J � f .JA yR ✓ _ �"S f/ 1` ,� � ; , f• -J �.'�,� J 1. f / f ), 7 , f i 2, J rgpJ! fJt f. �r P .. <.,. '{l ,r �'..._. 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PAS Y (ADMIN AREA) EXISTING PARKING: REGULAR PARKING SPACES: 76 ADA ACCESSIBLE: 4 TOTAL SPACES: 80 PROPOSED PARKING - REGULAR PARKING SPACES: J`I AIDA, ACCESSIBLE: 4 TOTAL SPACES: J J REQUIRE® PARKING: 69 Dewberry Engineers Inc. 4805 LAKE BROOK DRIVE SUITE 200 GLEN ALLEN,VA 23050 804.290.7957 (PHONE) 304.290, 7928 (FA,'O 0 Z E z LU LLI - T- CL LLJ c tl R a-t , �' ` �'',��f r —4 w F P` KEY FLAN SCALE 0' 30' 60' GRAPHIC SCALE 1 ,> = 30' 2 01 /28/19 HCC COUNTY COMMENTS 1 1 1 /12/18 DAB COUNTY CCIMMENT5 No. % DATE BY Description REVISIONS z DRAWN BY APPROVED BY CHECKED BY DATE TITLE 1 JA JUARY 2®, 2019 PROJECT NO. 50075000 SHEET NO. I■ 14 I CW f i 2l Dewberry 4805 LAKE WOOK DRIVE SUITE 200 GLEN ALLEN, VA 23060 804.290,79 7 (PHONE) 804 2t9J.7923 ( FAX) L L d ra uo- T co CL SEAL ri 4J fl" HY�` ry t i (q Pg �'9.r� 1 I.! fii'll °. o� KEY PLAN] SCALE 0' 10' 20' GRAPHIC SCALE it " 10 I 2 01 /28/10 HCC COUNTY COMMENTS 1 1 1 /12/18 DAB COUNTY COMMENTS No. DATE BY Description REVISIONS DRAINN BY APPROVED BY CHECKED BY DATE zW DRM ME JAN UARY 28, 2019 HOJE T NO. 50075660 SHEET I\IUD. 9 0- A I I +tiDewberry Dewberry Engineers Inc. 4605 LAKE BROOK ©RIVE SUITE 200 3i EN ALLEN, VA 20060 804.290.7957 (PHONE) 804.290.7928 ( FX0 KEY PLAN SCALE 010, 20' CRAPNIC SCALc .1 ® 1 o' I I 01 /2 /19 HC G- CCUNI-FY COMMENTS 1 11/12/18 ©AD COUNTY COMMENTS No. 1 UA�TE BY Description REVISIONS HANt,lN BY M N M APPROVED BY URM CHECKED BY DAM DATE JANUARY 28, 2019 TITLE PROJECT NO. 50075660 SHEET NO, Ar In I� 1 9 A A I I I Dewberry Engineers Inc. 4005 LAKE BROOK DRIVE SUITE 200 GLEN ALLEN,VA 23060 804290.7957 (PHONE) 604.2M7926 (FAX) UJ co EAR. S-1 If qj � k a J t �'+ {�ni yfiJ r� Y1 K—FY PLAN SCALE U1 J' 20' GRAPHIC SCALE .1„ = 10 I 2 01 /28/ 19 NCG COUNTY COMMENTS 1 11/12/18 DAB COUNTY COMMENTS No. DATE BY De3cripfion REVISION DRAINN BY M JM APPROVED BY DRM CHECKED BY DRM DATE JANUARY 28, 2019 TITLE PROJECT NO. 50075660 GFIEFEET NO. AW liav 1 17 A I uu E owbarry rEngineers Inc. 4305 UNKE BROOK DRIVE SUITE 200 GLEN ALLEN, VA 23060 304.290.7957 (PHONE) 804.290.7928 ( FAX) If: C: CC 0 CC CC Cl- LLJ z 0 L 7 4 o Lu uj CL SFAIL as � cJs L 3 Sai KEY € LAN SCALE 0' 1 d' 20' 1 GRAPHIC SCALE 1 ' = 1 d' I 2 01/28/19 HCC COUNTY CCMMI NTS 1 11/12/18 DAB COUNTY COMMENTS Nol DATE BY Description l REVISION DRAWN BY MNM DPP OWD BY DR CHECKED BY URM DATE JAN U CRY 28, 2019 TITLE UHADANU AND" PROJECT NO. 50075600 SHEET N1. 0 Q A r_ 3 I ,gap '12 ewberr �, , Dewberry Enginoers Inc. 4300 LAKE BROOK DRIVE SUITE 200 GLEN AL L EN, VA 23060 304.290.7957 ('HONE) 304.290.7923 (F/--Q'0 00 SEAL w .,3 "r J XEVIN.NNTH N v ar- KEY PLAN SCALE W 10' 20' HORIZONTAL GRAPHIC SCALE 1 " e °l 0' 0' 3 2' VERTICAL APHIC SCALE 1"0 CA o 11 II i 01/28/19 HC0 COUNTY COMMENT' 1 11/12/18 DAB COUNTY COMMENTS No. I DATE BY Description REWS10NS DRAWN BY APPROVED BY CHECKED BY _ DATE TITLE Pal N M JAN UARY 28, 2019 PROJECT NO. 50075660 SHEET NO. -1 #3 �Q 0 N p Pg`ki'' ll Dewberry Dewberry Engineers Inc. 4805 LAKE BROOK DRIVE SUITE 200 GLEN AI I EN, N/A 23060 804.290,7957 (Pi -ONE) 804.20019288 ( FAX) a) 0 IL a' IYA Ci r t' s' KEY PLAN SCALE �t z 0 z 0 Q LLI rr Lu m 0' 10' 20' HORIZONTAL GRAPHIC SCALE 1 " = 10, 0\ 9 2' VERTICAL OI�APHIO SCALE 1„ s 11 2 01 /28/1 J HCO COUNTY COMMENTS 1 1 1 /12/18 DAB COUNTY COMMENTS No. DATE BY Description REVISIONS DRAWN BY MNM APPROVED BY DRM CHECKED BY DRM DATE _ JANUARY 28, 2010 PROJECT NO. 50075660 alEET NO C4.1 1 4 1 1 A I C 9. ALBEMARLE COUNTY GENERAL CONSTRICTION NOTES FOR EROSION SEDIMENT CONTROL 1 THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE —CONSTRUCTION C��NFERENc-Ey ONE WEEK . PRIOR TO THE COMMENCEMENT � LAND DISTURBING ACTIVITY, AND ONE EWEEK{ PRIOR IOR TO THE FINAL r f f MINIMUM P�! STANDARDS 2, ALL EROSION AND SEDIMENT CONTROL MEASURES WILL B�. CONSTRUCTED AND MAINTAINED ACCORDING �� 1 I NI 1U � AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGUL ATIONS VR 625-02-00EROSION AND SEDIMENT CONTROL REGULATIONS, `� t � CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. �. ALL EROSION I ,AND SEDIMENT p � I MAINTAINED ON THE SIT AT ALL TI��I�. 4, A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL �� 51 PRIOR TO COMMENCING L_ 1D DISTURBING ACTIVITIES IN ARr...S OTHER THAN INDICATED ON THESE� P LANS (I NCLUDING, DiNGa BUT NOT T t3 �" CONTRACTOR I �' SUPPLEMENTARY EROSION CONTROL �' SHALL �LJI�MIT A o THE �OIITP,ACTOR L I WASTE AREA OFF —SITE i� BORROW OR 1!`I'ED TO O{�r � 9 �II,r a - � - - — r" _ PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. 6, THE CONTRACTOR IS RESPONSI BLE FOR INSTALLATION OFF ANY ADDITIONAL EROSION CONTROL MEASURES NECESS AR Y TO PREP/ANT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITr', 7. ALL DISTURBED ARC ARE TO DRAIN 'TO APPROVED SEDIMENT CONTROL PE1SURES AT ALL TIMES DURING I=AND DIS TURBING RBING ACTIVITIES AND DURING SITE DEVELOPMENIT UNTIL FINAL STABILIZATION IS ACHIEVED, 8, DURING DE)NATERING OPERATIONS, WATER WILL BE PLUMPED INTO AN APPROVED FILTERING DEVICE. E CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AFTER EACH RUNOFF —PRODUCING 9, Tl" � RAINFALL EVENT, ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. `O. ALL FILL MATERIAL TO BE TA(FLFROM AN APPROVED, L1E_3IGj�A'ELBORROW AREA. A 11. ALL WASTE MATERIALS S _AvL BE TAKEN y O_ AN APPROVED WASTE AREAa EARTH H FILL SHALL BE INERT ,ATERI ��_i ON LYa FREE OF ROOTS, STUMPS, WOOD, RUBBISH, A UBBISRa AND OTHER DEBRIS. 12� BORROW OR WASTE ARIAS ARE TO BE RECLAIMED WITHIN 7 DAIS OF COMPLETION PER ZONING ORDINANCE SECTION 5a1,2 , 'I3. ALL INERT 'MATERIALS SHALL DE TRANSPORTED IN COMPLIANCE WITH SECTION 1-5-301 Cr THE CODE OF ALBEMARLE. ` r> BORROW r IL- OR WA E ACTIVITY INDUSTRIAL —TYPE INVOLVING 1G POt PO WER E OJIPREl`SHALLa LL BE LIMIiED lO THE HOURS OF 7,OOAM TO 9,00 PM, - r' r�.q y 1- E v i F �' LATERAL ORDER T 1:�, SORROW, FILL. OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE 9AtiIl11� THAT MAINTAINS �rT�RAL SUPPORT, IN 9 �l� O MINIMIZE ANY HAZARD TO PERSONS, PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY PUBLI C STREET BECAUSE OF SLIDES, SINKING, OR COLLAPSE, 16o THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO PERRMANENT STORMWATER MANAGEMENT FACiLI`I•IES WHERE APPLICABLE. ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE P ANY 1 L' BUILDING PORTION OF THE PROPERTY, SALE OF ��T, UNIT, _UILDII'IC OR OTHER FORT 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 50/50 MIX OF ANNUAL RYEGRASS AND CEREAL WINTER RYE, OR IN MARCH AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF GEIRMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80 LBS/10OSF, ALTERNATIVES ARE SUBJECT TO APPROVAL BY THE COUNITY EROSION CONTROL INSPECTOR, 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT IT SEEDING, AND MULCH. AGRICULTURAL GRADE LIMESTONE SHALL DE APPLIED AT 90 LBS/1 OOOSF, INCORPORATED INTO THE TOP Y—G INCHES OF SOIL, FERTILIZER SHALL BE APPLIED AT 1000 LBS/ACRE AND CONSIST OF A 10-- 20-1O NUTRIENT MIX. PERMANENT SEEDING SHALL DE APPLIED AT 180 LBS/ACRES AND COifSiST OF 95% KENTUCKY 31 OR TALL FESCUE AND 0-5% PERE"NNiAL R`YEURASS OR KENTUCKY ' = t i Cr - - ` <_ er � _ . `� E SUBJECT' E BLUEGRASS, STRAW MULCH I� TO BE APPLIED AT �O L.B�/ I OO�F, ALT�.RNATIVIS ARE S J T TO APPROVAL BY TI-I� � COUNTY EROSION CONTROL INSPECTOR. 19, MAINTENANCE. ALL MEASURES ARE TO BE INSPECTED MEEKLY AND AFTER EACH RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIRED IMMEDIATELY. SALT TRAPS ARE TO BE CLEANED WHIEN 50% 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 DIKES WHICH ARE COLLECTING SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND REPAIRED IMMEDIATELY. 20, EROSION SEDIMENT nn i N f MEASURES � � REMOVED WITHIN �tO DAYS I- , L r 1- �U - 1 O BE REMO Y � OF FINAL SITE �, ALL TEMPORARY r✓RO�ION AND ��DI,�1rNT CONTr�O�. �r �A RES ARE STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT TO APPROVAL BY THE COUNIT`( EROSION CONTROL INSPECTOR, 21. THIS PLAN SHALL BE VOID IF THE OWNER DOES NOT OBTAIN A PERMIT WITHIN 1 YEAR OF THE GATE OF APPROVAL, (WATER PROTECTION ORDINANCE SECTION 17-294G) I I ALL AFTER THE DATE TH�. LAND B INSTALLED ON A,�, DENUDED AREAS WITHIN NINE � 'MONTHS AFT ��, PERMANENT VEGETATION SHALL E ( ) DISTURBING ACTIVITY COMMENCED. 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IT' AF GF',FGA 1`li; Jtj11r c Va. DS WC tTT 33 3.07 1992 T b l i....-Y.. 5 IV 3 P 1 "" T f;' 3 I I n�. .� �1 1 rF� i' �'� S'et 1. .��.s `fait., I.°iP...._,. rw' .k Ct x , C__ UP -LOPE 'LONG T-ELE LINE 01" e, N, t - lrk I � t �_A P S i� r — _ r 1 41t--�11-x,I (t, r" tat tm r 1 C r:. I I y�l.. .aACA',FRI A114111D ti.1 C„ r_ '; € " ,� r � � t ,t .� I' i t r .� I i q t �,: Fzl+lL 1`?§ t 9 . { 1 , _ J P012NITS {i SH I.J1,D BE H + E'R 'I'H ,N POINT -. \}.5.. f,-C T{ .� ie' J.i' .t i'FA 1.,l <I,I �_1x1�1 t F i t p) j n. S1��_r,._. Ataiytw.. �r€<1 � �r�_,�4 i Pt mi d -Smvv and Fabric F{I{-;- B it 1 for edi-Tc€ I €" Control, ' he ''tJt3dl and WLLIr[' i99 a INLET ! % r r r. d2 -- --------- ---- y-p Site' FILi. :10'#A,+tfl 9.jtl;,l,?rtmE? 1T, L I'wvv OPN?L #T AyT r r{ a1B,IfOT! t Sheet,'-, arid Va. DSWC Plate 108-1 Dewberry Engineers Inc. 490- LAKE BROOK DRIVE �SJITa goo I E' l GLEN A�L_t J VA 23060 $04.290.7957 (PHONE) 7 �21 �flr �fl4.29o.i� `0 0 i Z rr co ri C) Co CL SEAL it r Fri ,6'.. P� �3 r, r� an Ay 141 j A a s KEY PLAN SCALE I I—� I i 2 01 /28/19 HCO I COUNTY COMMENTS 1 11 /12/181 DAB COUNTY COMMENTS o. DATE I BY � Description REVISIONS DFIA /N BY M N M APPROVED BY DRM CHECKED BY DRY✓1 DATE JANUARY 28, 2019 TITLE ERub 1 , a N' T _ 3 TABLE 3.32-C eRevised June 2003), PERMANENT SEEDING SPECIFICATIONS FOR APPALACHIANIMOUNTAIN AREA Cl f C TABLE 3.31-B (Revised June 2003) TEMPORARY SEEDING SPECIFICATIONS QUICK REFERENCE FOR ALL REGIONS APPLICATION DATES SPECIES APPLICATION RATES Sept- I - Feb� 15 50150 Mix of Annual Ryegrass (11011um multi` 50 - i 00 (lbs)acre) florum) & Cereal (Winter) Rye (Seale resale) Feb. 16 - Apr. 30 Annual Ryegrass (Iolium multi -Haarlem) 60 - 100 (lbstacre) May 1 - Aug, 31 German Millet 50 Obsfacre) • Apply 10-10-10 fertilizer at rate o(450 tbs. /acre (or 10 lbs. 11,000 sq. ft.) • Apply Pulverized Agricultural Limestone at a rate of 2 tonslacre (or 90 tbs. 1,000 sq. ft.) NOTE: 1 - A soil test is necessary to determine the actual amount of lime required to adjust the soil pH of site. 2 - Incorporate the lime and fertilizer into the top 4 - 6 tnches of the soil by disking or by other means, 3 - When applying Slowly Available Nitrogen, use rates available in Erosion & Sediment Qontroll Technical ulletiri # 4, 2003 Nutrient Management W1 Developmeot Sitar at htti):/Lwww.dcr.state,va.uifswie&s.htm#iaubs TABLE 335-A ND APPLICATION RATES ORGANIC MULCH MATERIALS AA RATES: MULCHES: NOM- Per Acre Per 1 sq. ft. rHay Straw Or 1 I� - 2 tons 1000 70 - 9tO lbs, Free from weeds and coarse i (Minimum 2 be anchored. matter. Must be anchored. Leans for Spread with mulch blower winter cover) oT by hand. Fiber Mulch Minimum 35 lb& Do not use as mulch for 1500 lbs. winter cover Or during hot, dry periods,* Apply as slurry. Com, Stalks 4 - 6 tons 185 - 275 lbs. Cut or shredded in 4-6" lengths. Air-dried. Do not use in fine turf areas. Apply with mulch blower or by hand. Wood Chips 4 - 6 tons 185 - 275 lb-, Free of coarse matter, Air- dried, Treat with 12 lbs nitrogen per ton. Do not use in fine turf areas. Apply with mulch blower, chip handier, or by hand. Bark Chips 50 - 70 cu. 1-2 cu. yds. Free of coarse matter. Air - or yds. dried. Do not use in fine Shredded turf areas. Apply with Bark mulch blower, chip handler, or by hand, I[— " When fiti-ermuleb is the only available mulch during periods, when straw should be, used, apply at a minimum rate of 2000 lbs./ac, or 45 lbs./1000 sq. ft. ar3= r sly,% 7 L: n 1115 30 93 0 50 I-T, U 330 Edge dm: 07M Zme ON ViGsm SEE LAND USE SPECIES APPLICATION RATES Tall Fescue' 90-100% Minimum Care Lawn Perennial RyeqraW� 0-10% iCommercial or Residential') Kentucky Blues grays' 0-10% TOTAL: 2(a0-250 tbs Minimum of three �3),Up to five (6) varieties Hiah-Maintenance Lawn of Kentucky Bluegrass from at list TOTAL: 125 lbs. for use in ViEgi nia Tall Fescue' 128 tbs, u Gkrierai Stoe �3� I or less Red Top Gross or Creeping Red Fescue 2105, Seasonal Nurse Crop' 20 ft, TOTAL: 160 tbs,, Tall Fescue` 108 lbs. Red Top Grass or Creeping Red Fescue 2 tbs- Low -Maintenance Slope Seasonal Nurse Crop.. 20 tbs. tS,tgtD2r than Crownvetch 20 tbs. TOTAL: 150 Ib& 1 - When selecting varieties of turfgrass, use the Virginia Crop Improvement Association (VCIA) recommended turfqrass variety list. Quality seed will bear a label indicating that they are approved by VCIA, A current turigrass variety list is available at the local County Extension office or through VCIA at 804-746-4864 or at htt :I/sudian.cs-es.vt,edu/htLnlTurflturf�DUbliCatiDnE/Dub;ications2.htmI 2 - Perennial Ryegrass, will germinate faster and at lower soil temperatures than Tail Fescues, thereby providing cover and erosion resistance to( seedbed. 3 - Use seasonal nurse crop in accordance with seeding dates as stated below. March, April - May 150 Annual Rye th May 16 - August 15"' ....... Foxtail Millet August 16' - September October ......... Annual Rye ...... Winter Rye November - February ..ease 4 - All tegunne seed must be property inoculated. If Flatpea is usedincrease to 30 tbsiacre. If Weeping , Lovegrass Is used, Include in any slope or low maintenance mixture during wartner seeding periods, increase to 130 -40 lbslacrq, FERTILIZER & LIME 0 Apply 10-20-10 fertilizer at a rate of 500 tbs, J acre for,12 lbs. l 1,000 &q. ft.) 0 Apply Pulverized Agricultural Limestone at a rate of 2 tonsiacre (or 90 tbs. 11,000 sq. It.) � NOTE: A soil test is necessary to determine the actual amount of time required to adjust the 506 pH of site. Incorporate the lime and fertilizer into the top 4 - 6 inches of the soil by disking or by other means. When applying Slowly Available Nitrogen, use rates available in Erosion & Sediment Control Technical lauiletin # 4 2003 Nutrient Manauement for Qevelourrtent Sites at h ttly //VVWW state.va usfswe&s htm#pubs Utw 41 �rr 5T N 2" TAMP FIRMLY ANCHOR SLOT "d ANCHOR SLOT *4 NOTE APPROXIMATELY 200 STAPLES REQUIRED PER 100 SO. YDS. OF MATERIAL ROLL. ANCHOR SLOTS, JUNCTION SLOTS & CHECK SLOTS TO BE BURIED 6" TO I Z'. 127 MAX. 4:1 OR FLATTER 6' MAX, STEEPER THAN 4:1 JUNCTION SLOT EDGE AND END JOINTS CHECK SLOT* TO BE SNUGLY ABUTTED (JUTE MESH WILL HAVE TERMINAL FOLD STAPLED LAP JOINT IN LIEU OF EDGE JOINT) LAP JOINT 2" MIN. (JUTE MESH ONLY) 5' MAX, 4:1 OR FLATTER 3' MAX. STEEPER THAN 4:1 9* TO 1 1 TAMP CHECK SLOT FIRMLY 6 TO ir CHECK SLOT 1" TO 2' F— -VA-R.- -7- VAR. 6' To 8 MIN. PLAN VIEW STAPLING DIAGRAM STAPLE FORMED FROM NO.1 1 STEEL WIRE, *CHECK SLOTS AT MIN.50- C-C INTERVALS; 8" STAPLE MIN. LENGTH FOR SANDY SOIL NOT REQ.-D WITH ALL JUNCTION SLOT TAMP FIRMLY 6' TO 12" Source: VDOT Road and Bridge Standards 10% SETTLEMYN-1 on, FRPP ROARF TERMINAL FOLD D] VER S] ONS -------------------- TYPfCAL PARABOLTC DTVERISfON 10% SEMEMENT TYPICAL TRAPEZOIDAL DIVERSION 10' S-EITLEMEN7 0,3' FREF BOARD—__ ------------ ---- f ------- 0=10 flow mem CHECK SLOTS TO BE CONSTRUCTED AS PER MANFACTVRERS RECOMMENDATIONS. TRANSVERSE CLOSED CHECK SLOT TRANSVERSE OPEN CHECK SLOT Plate 3.36-2 Source: VDOT Read and Bridge Standards oil ffint fit TYPICAL VEE SHAPED DIVF',RS10,NT Source: Va. DSWC Plate 3.12-1 Source: Va. DSWC I Map► Unit Symbol Map Unit Name Acres In A01 Percent of A01 113E Catoctin very stony silt loam, 25 0.21 1.90% to 45 percent slopes .2313 Davidson clay loam, 2 to 7 0.51 5,3%ll percent slopes 171D Rabun clay loam, 15 to 25 6.3 64. 0/101 percent slopes 188 Udorthents, loamy 2-8 28.2%1 Totals for Area of Interest 9. f 11—, 100.0%1 AA JtOA ENTRENCH EDGES OF MATERIAL 6" V-2' UPSTREAM AND DOWNSTREAM TERMINAL Plate 3.36-4 Plate 3.38-2 Dewberry Engineers Inc. 4805 LAKE BROOK DRIVE SUITE 200 GLEN ALLEN, VA 23060 804.290.7957 (PHONE) 804.290.7928 (FAX) -I-J C: 0 Z E 70 `riF- < < D Z Z0 E < < W CJ- cn C: 0 (J >< Z IM < W > > < CC = a- - a) W> WUJ X J W 60— U) z Z F- > 0 I- — 0 LU 0 0 U) 0 W C: < UJ Z M Z O -: <-J Se 0 (.0 rr I= JQQ C) Cc 00 rr o U O ui n W 0 n 0 -J < U) 44, V eg7, SEAL 4 f (X(EVINANFiiYPEN?-tOCK'�' 4- Lc. Nu (4,31023 , 4r Na KEY PLAN SCALE 2 01 /28/19 HCG COUNTY COMMENTS 1 11/12/18 DAB COUNTY COMMENTS No. DATE BY Description REVISIONS DRAWN BY MNM APPROVED BY DRM CHECKED BY DRM DATE JANUARY 28,2019 TITLE EROSION & SEDIMENT CONTROL DETAILS AND SOILS PROJECT NO. 50075660 SHEET NO. C5.1 R,'--)AD & BRiDIGIF STANDARDS MRIMM L TO S 1 T FA. hj.', OF� ..r _ , Jr z CORPRFM 70 U LAW AS W CAM W 'IACE, R2, HANV�G A Fw1u," O,lu, 7Et7,7- '_�p _,_S�- 1:� 04ILL EL OR M �uii CJH HADOL CUR-3 4 TH7 riFOTI-i OF I,.URG MA'Y .F AS CIR A.-_-3 "'AiUCH DEPT) C 011JR Of NE BOF TOM Of CURD W44 CaMCQE WIRi TOF TnP 0' A iR,5TRir'T1 IPF OF THiF PA_, u­ -­;F_,Rv,,IOr_ 111E jLP1111 5 �'u 'LiL 18 AS FCP A DFCRZASF OR 4 41,REASE +j 214 "C', d"L U`Eb C'N m�_ _uLJ7,,ELIErI;S FOR C,C-6 'Ei'N'DiAtz A A�P_F_,.lrJhX A C',F TH7 VDOT ROK', i­,q,-sICH IN To NOTION ON As x8m; sukomo`i STANDARD 6" CUIRB B jj., - _F�)E ­ _ f _ 2016 ROAC) BR�DIGE STAN DARIEC."11-S �,IiS 0 A T I F71777 20LOi 16 ROAC & B RIDGE STANDARDS L ------- FOR RE OPMG Rohl WOL LWQSa C. HTS PWE PICKE f L I - - - - - - - MAX, &�D_ T 7! 17 i 1 0 R V t oi. FIi li pi Au"o F, 0, 0 klp, o RW EXPA!miCtl "n J rl ; I - I , 30 PEET TFP, i POO TS 2" MIN, W'!:l C2 0,-'?-A RFT RALS 2- M11. OPS 12 575" CIO OF MIN NO f ANCH G, rR EOLT'S HR- I TY 'F7 fl PEDESTRIAN RAILIKIR-34 (FOR USE RONO SDIWALKS M44 RAMPS� ij T;v EE ROMIAY PLMS OR TWEAL SCCT�ONS FO-F' [,A -STANCE rl(, V/4" SCHEDUIE 410 [ji Pl_ ST5 SiDE 0 EyvAi.14, cF SHAPRED I ;Vz,; wj. f.]�-`S U.'-E.) 5l_f-E1_',.fLE 40 RATH, ELECTRO HR-1 TYPE' I 11ANrDRAIL 2 =FOR li-E 1 W�;) %TGS t5i1011, T' STFEL ,SHAL1 D,5,,,kA7Ni, D'E JJ_0,JG ALL ,�JOOTk R'01,L)ND IR NOFA8-P ATM0 &VS1012MEN F M_ COICrp By Tril'" RMIL DETA[I MCNEER PMOR TO OF DESG= RAMQ GIRNIPPINk '­AJNCOCIR� E'cl-15 U,E- D 7�'Al A 1,_K-5 RAMPS) BE A ENGINEER, ' HOWNG A V&D LCWSE Ix P;�A,_IiCE', EFIiGILNEERTIG !% GR5PF`j,1(-, `firtl ��,HALL !�E L IH11_' 1�'_110mmr,11-41RIEAL�_ 1_1 V2,Rll,�Ili ll_ Ti'E -SUDEAALK UR RAAAF G-`.xiaEt, .X,�E 2. AL RMAG CMTTjNT',_1 AND' FASTEN-FFS `3�t EF QALvAvtYCCi I,% EARTH FOUNDATNON Or -TAIL AJMD TO OR CREOER TMAD! 5 PZRUMV VMPP - W_ ACOQ, WTH TRE CUKENT IT All WkL HE AXOEMAL TO THE COST fo 00ANI-Ii­- CH �.`,LL VENNNG AN-0 ,',FtaR USE NI-P T,FE 0 N RUTTO THE f_�R.AVA',.,E H--lLE T-CR GAL.VAI,10`-�G SHI'LL F!r d'ICLUUIED N HE kL FANTEMRS SHAU. RE Q ACCOROMCE 1 T9 ASTM 4307, _x. AS WGH AMWO MSW G012 36 �f�/ IX'J" IS PIPE MCAE, -�EE 4A CHF�,,K;AL Av*C�t(-,R Rlf�.�f7V FROt'A VIDOT".; APPR,,,iV'�7D 'MATE.-RiAi 1 0 N 1!�: rLAr.'t AN�.'>16R'3 plNDi FOR REMNvu f of aC. It' SOLO PCKET WALL DETAL ST MAY BE ?jSL T W-L'UDED IN tHE L'1N'AvijN`3'�5 F SHAA BE M;ARED iOAT�_'Fi Gk,&,C�'E OF R'M,'F'5, 5!_;EWY 7n ryl jj-�� �p WTI 1 1 'y 1 1 Fil, 6, 1 IA.NDRAII, r, '�,�NALL. %IATC� 1 RF Fz.A.,.A.­s sr.nc t,.s m�4rf 5,7P"_ 7. 61LL `CISTS, AN,D PrKZIS S��ALL S-E SEtPILUEPllB, -�!-AILING-_, SHN-i- BE Vi�.CUL,"DE0 EL'�' &7_NIDED, GROWDNC� QATTTIRIA];_�, l,1,;5,TAJaAT10N TO 21F, LN' it m PD, F E L"�_;f,,OVE ..- _L1 AVALARLE RALNG SO MMS mAY BE ITED N LEU al. 1 11 HJUL! III TU-;- VANUF.1kCTU7�ER iEPIF i'APIC'. O,­_�-,-; M_',,�ECT ��EOAJ.REMEL,'TS R 1L RAL ,0; Jl-_ A WT WMI DT RAILWT 09TEM SNAA, BE SjBWTTED WaM TO,` �VAf', 'EL 110ALLAMN DRAWNGS AM AMOAD BY TA EHMEM _3 l_ CAN�,' a. rx EXCL I '- ? MAX. A% a 00 1 Ji '00H MI -A NF'S 001-, 810 P'n-E 2- lia HA,i','DPAiL T,-, BE IN -,t1,E El_THINN IS f130" alkSOMMUIZ 40 PFE TILF V1RQ4+,A JMFORM ;3TATEvirl,� U.Tl L 1*,'_-', -,01,TECTi1,)x, FOR. PKXETO INVIN %F10 jL05" QAT 40TEDULE p T10 BE ONL N A Nq m AMD SHOULLI Ni_� �7,i' 4�4 PFIr -('_'AT1,, i_H RC�,_PiD f"OL', -`;`R C'A l,"'"Di, I X� 4,v t'_ ELECTNOCE WORE A UnFT" Sl-� V_�BJEcf ANt* Vr1T',__­,A,M imifl,�,CT USE tISE PAf'-i,"i) FOR VERMLAR GUARDIA- tt-i,�LRXI SE w5fa, Nl_ 57J'�F,17i ANr� i`jI`A,ifl%Q �S; CIN TIM- &I T,-!:�,_ �PECJ K)"N A C 0 A f 0 F I fZi 1 ,!N 1, ENTRAIL CiFFIr-i". A _\/DDT STfANDARD HANDRAIL KA ET H 0 D OF 1.0CATING, AND ERECTINC-:, W4 vj,,')C,744.A, DERt,=&,N'T 0`1- 21016 ROAD & BR0GE STANDARDS 2" FR ff Z-O" NOTES: 1, DETAIL SHOWN IS TO DESCRIBE THE REVISED SHAPE FOR A REVERSE CURB AND GUTTER ASSEMBLY. SEE THE CG-6 DETAIL FOR ADDITIONAL CONSTRUCTION NOTES AND REQUIREMENTS. REVERSE CURB N.T.S. (SOURCE: DEWBERRY) 2016 RIOAD a BRIDGE STANDARDS 3�m NOTES: -HEM� ' i, 'A'��, lf�- PLACE, I MAY Bt �IRE,, ,�7 `IF' _ -UR -1 TER PC f �B!jt r `fG E-1 HAWIL. A ElLjS 7 OR LOS 14ME FKE OF CURE,,' CURB G=Ek A FOR USE MTH TTABAGED QPF&GRMED 110=0 TF4, Bi_"-TTClM `lF _R - P-il- �!LEt •O HHZE "L-Clt Ur :�'w;DSASE COURSES lO THE DEPTH o'- 9ULOV6',,BCR!�,EPAA 'CR. _,�`L USE' '_G-6 l' BAtED 0,11 ROaG1NA`r CL�%SSfl-,,CF1lT1,',, '+- AS S,11 ."NiN 1NI Ar`PF,`flLCl A - I - ­, )r-(S s WJ-4 UNt- TIC' �_F' - , i, ""'"1:%UARD's COMEONAMS4 15" CCURB AND GUTTER - 2016 ROAD N BRIDGE STANDARDS J,- R TYPICAL SECTION (DIMENSIONS MAY VARY WITH MANUFACTURER'S DESIGN) REFERENCE CROSS SLOPE TRANSITIONS FROM PARKING LOT SLOPE ALONG GUTTER TO 0% AT STORM DRAIN, SEE SPOT ELEVA%TIONS AS NOTED 2016 ROAD & BRIDGE STANDARDS STEP GAIZED MINIMUM OF 3" EMBEDMENT ALUMINUM STEP STANDARD STEP VIRGINIA DEPARTMENT OF TRANSPORTNNON 2016 ROAD & BRIDGE STANDARDS I %j 6l' NOTES: 1. DETAIL SHOWN IS TO DESCRIBE THE CONCRETE DITCH FORMED AS AN EXTENSION OF THE CURB AND GUTTER. SE! THE CG-6 DETAIL FOR ADDITIONAL CONSTRUCTION NOTES AND REQUIREMENTS. CONCRETE DITCH WITH CURB N.T.S. (SOURCE: DEWBERRY) 11E LET I% OF so CURB AN110 1-0-FFER MA( 011- CCNETRl_JC.TED P;�RAU,71L Tl-,. TH�- CT SUHRAU COURSER PROOD72, A, mmmm 51"H SPJ� 0 AT SIMT 1 OF I REV!' ST-1 #4,GRADE 60,REINFORCING ROD ENCASED IN A CORROSION RESISTANT RUBBER OR OTHER MATERIAL APPROVED BY THE ENGINEER (DIMENSION MAY VARY WITH MMUFACTURER'S DESEN) CORROSION RES!STAkiT mxrERIAL 4 REINFORCING ROD CAL SECTION NOTES* STEPS WILL BE REQUIRED IN ALL STRUCTURES WITH A DEPTH OF 4'-0" OR GREATER UNLESS OTHERWISE NOTED ON THE PLANS. ALL STEPS SHALL PROTRUDE 4Y2" FROM INSIDE FACE OF STRUCTURE WALL. MAXIMUM STEP SPACING TO BE 16" C-C, STEPS SHALL WITHSTAND A MINIMUM FORCE OF 300 POUNDS WHEN EXTENDED 4Y?" FROM THE FACE OF THE SUPPORT. STEPS ARE TO BE VERTICALLY ALIGNED AND UNIFORMALY SPACED FOR THE ENTIRE DEPTH OF ANY STRUCTURE. IN PRECAST UNITS STEPS MAY BE CAST IN PLACE,MORTARED INTO HOLES PROVIDED BY THE FABRICATOR,OR DRIVEN, STEPS DIFFERING IN DIMENSIONS, CONFIGURATION, OR MATERIALS FROM THOSE SHOWN MAY ALSO BE USED PROVIDED THEY MEET CERTIFIED TEST REPORTS OF THE PROPOSED RECEIVED WRITTEN APPROVAL FROM THE ENGINUR FOR THE USE OF SUCH STEPS. ALL STEPS INSTALLED SHALL BE PROVIDED WITH SLIP -RESISTANT SURFACES SUCH AS BUT NOT LIMITED TO, CORRUGATED KNURLED, OR DIMPLED SURFACES, ALUMINUM STEPS SHALL BE FABFRICATED IN ACCORDAINCE WITH ASTM 022t ALLOY 600505. THAT PORTION OF THE STEP ENCASED IN MASONRY SHLL BE UNIFORMLY COATED WITH A BITUMIMOUS, SOLVENT TYPE, ASBESTOS FILLED ALUMINUM PIGMENTED COATING CONFORIVING TO FEDERAL SPECIFICATION TC-C-00498A. ROAD ANDBRUCE STANDARDS REVISION DATE jFjS0QEjT,1jj0 ;T6 1.5 SM-45A -------- 6" 21-B AGGRECATE--' COMPACTED SUBGRADE 'TO 95% MAX, DRY DENSITY STD. PROCTOR PER ASTM D-698, METHOD D. (12" MIN, BELOW SUBGRADE) PAVEMENT SECTION N.T.S. (SOURCE: DEWBERRY) 6 NOTE E-S: I THE SEGMENTAL RETAINING WALL SYSTEM SHALL BE DESIGNED BY A LICENSED PROFESSIONAL ENGINEER REGISTERED IN THE STATE OF VIRGINIA. 2. MODULAR RETAINING WALL SYSTEM SHOP DRAWINGS AND CALCULATIONS SHALL BE SIGNED AND SEALED BY THE PROFESSIONAL ENGINEER RESPONSIBLE FOR THEIR DESIGN, SHOP DRAWINGS AND CALCULATIONS SHALL BE SUBMITTED TO DEWBERRY ENGINEERS INC. FOR REVIEW AND APPROVAL. 3. FOR UNITS TO BE EMBEDDED, COMPACT FILL IN FRONT OF UNITS AT THE SAME TIME THAT FILL BEHIND THE UNITS IS COMPACTED. 4. INSTALL #57 STONE IN A 2'-0" WIDTH DIRECTLY BEHIND THE WALL AND EXTEND STONE TO WITHIN 1 2" OF THE TOP OF THE WALL, DRAINAGE AGGREGATE SHALL NOT EXTEND BELOW FINAL GRADE IN FRONT OF THE WALL. 5. COMPACTION SHALL BE TO 95% OF MAXIMUM STANDARD PROCTOR DENSITY (ASTM D-698). G. COMPACTION WITHIN 5 FEET OF WALL SHALL BE LIMITED TO HAND OPERATED EQUIPMENT. 7. GEOSYNTHETIC REINFORCEMENT SHALL BE PLACED WITH STRONGEST DIRECTION PERPENDICULAR TO WALL. FOLLOW GEOSYNTHETIC REINFORCEMENT MANUFACTURER'S INSTALLATION INSTRUCTIONS AND WRITTEN SPECIFICATIONS, 8, CONTRACTOR SHALL DIRECT SURFACE RUNOFF TO AVOID DAMAGING 'NALL DURING CONS' I - RUCTION. 9. FOLLOW APPLICABLE PROVISIONS OF THE MODULAR RETAINING WALL SYSTEM MANUFACTURER'S INSTALILATION INSTRUCTIONS AND WRITTEN SPECIFICATIONS. 10. COORDINATE MODULAR CONCRETE UNIT STYLE, PATTERN, AND COLOR WITH OWNER. MODULAR CONCRETE CAP UNIT. ATTRE TO UNIT BELOW WITH CONCRETE ADHESIVE. 2'- 0 6 14 BACKFILL GEOSYNTHE-1111C REINFORCING. LENGTH, TYPE, AND SPACING r BY MODULAR REINFORCED SEGMENTAL RO-AdNING WALL VARIES NODULAR-VDOT #57 STONE SYSTEM MANUFACTURER _� OR p CONCRETE WRAP WITH FACNG UNqS FILTER FABRIC REINFORCED BACKF ILL_ 0 COMPACT TO 95% OF MIN, MAXIMUM STANDARD ------------ PROCTOR DENSITY (ASTM D-698) _6" DIA. CORRUGMED, PERFORAIED PLASTIC PIPE. PROVIDE OUTLET AT END OF WALL, SLOPE DRAIN A &Kozo LTER ABRIC- 1/8" PER FOOT MINIMUM. WRAP PIPE IN FILTER FIF AROUIND STONE FABMC PROVIDE 1/2" GALVANIZED STEEL WIRE MESH OVER VDOT #57 STONE END OF POE, A _LL FAC v %jl�j \10 FACE TYPICAL MODULAR A n TYPICAL MODULAR CONCRETE CAP UNIT CONCRETE FACING UNIT MODULAR REINFORCED SEGMENTAL RETAINING WALL DETAIL ICT.S. (SOURCE: WOLHAR 7/20/17) FILL WITH NON -SHRINK GROUT; AND SEAL HANDRAIL POST-, I CORE DRILL L 2' RETAINING WALL HANDRAIL POST FOUNDATION N.T.S. (SOURCE: DEWBERRY) METHOD D. (12" MIN. BELOW SUBGRADE) I CONCRETE SLAB N.T.S. (SOURCE: DEWBERRY) meg L. Dewberr y Dewberry Engineers Inc. LAKE BROOK DRIVE 4805 LA SUITE 200 GLEN ALLEN, VA 23060 304.290.7957 (PHONE) SOV290,7923 (FAX) 4--1 C7 E z 0 Z Z E z 0 < - (r LIJ > cc (1) LIJ > uJ A > o cr) F- z t m AJ Z Z _j < 0 10 1-010 too Lh & Lli SEM. m _01 I,. "J"I'_1 mu iffix� KEY PLAN SCALE 2 0 1 /28 /19 HCG I COUNTY COMMENTS 1 CA B COUNTA.' COMMFNT!, TY COMM11 S No. DATE BY I Description REVISIONS DRNNN BY APPROVED BY CHECKED BY DAjE TITLE MNM DRM DRM jANUARY 28, 2019 NER10-1 M, ­ WAM�� 1 1 1 1 :2212 'Ll ' 5" HDPE STORM PIPE VDOT CON( MAC 0 m 15" HDPE STORE PIPE N 8" CONCRETE WEIR WALL VDOT STD MH-1 MANHOLE STRUCTURE V 12 TOP VIEW SIDE VIEW PERPENDICULAR TO DIRECTION OF FLOW) ® 811 I Qi171 P €7 EL I EL 15" HDPE STORM _\� PIPE TRASH /� �� a _ RACK � r CW 'I 11 4" ORIFICE 1 /J \\ EL .. ' - - �' _ [ I FRONT VIEW (FACING WITH DIRECTION OF FLOW) i: i ION FLOW 1­2" HDPE )ETENTION 'IPE :V = 376.20' iV = 375.20' ®�/ m _ ®372.75 - _..- ®----.®_.. -_. HALF PLANW E ` F ., rar = .,1._, ,,,:i r .= 1 , r =jam I _ z f i f .j41 � - 1. ". _�I , — `! 11 7 F' "ter [.rid 1 #'t r. L 't � r ' ... F.. 11 - , I ! z= - --. I r, r r ti 1 r 1 r F sa a , I 1 _- izs.. -.t - -- --- ' - - '_`_ - T t_ J r r w 1 _ #JJ, ,1LU _ I-EL=,15_!:?-_r; �jlf'}'--�..;.=_- S d it 111�-1 : -a i -� s f 1 , aLJ l + L 1 J F I- 1 "[ r r :�-j a°! - _ CI? ,+ C :- s .. 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I "7 y , ,. t 1. _1 a �Ir .1 , f 1 FL I 1 a'_ C t 4 t - 1 llf t t fi 4 ! l.(C irP=! 1 1 is YI.'E M I'irNED E e(l_ "s' J' 11.ZE EL }J C'E ft#'14 ilil v4t{ - f3'Y LQ L. x;L i # J�-P I' '� _ L ,J L..Jtdii-Ew., :,, ;.rr i �,Ft_v_ t�,,.,,4`1LiP-1,'_ .ti,.'f TUP bt't tiUtlf-+F 4 fyI 'r>*,1sr,'d;6 s, f N-:�-. in�r „i.,Jt1,G._7k r,._. r ._H 4�90T CLOTP I. i FrRM,.1 ,t_a T f ! e1 LtE 1jF n , J!.. -i .1 F zrl J !o-{ t4 uE , I h- 1 3- ti- aY u�i. § «I-w. 1 �iLli 4# _i II A It:DN Cl[ V'! p3 ,CM...i} SLF 1 L.P 3 9C;`- tt f H 1PI `:.fJ 11{Cr .I'i Si'LC. i. 1 __,-, I., ...},-, FJI #Ps.{P,, ,.„Iat A.`..J « .r,.�sf H:.. r C ., r;.# ,�,kaFrrF. t#::,TEA.. , str,,. A _ U �tT. ISI tF _ I> J .v € aF. U 4Fd 'i-7_. it I .! .'t, c t I ^",:I. T?:. F - , # i K, I:_, f Y. . Y Ec J i : rr • j \,,i - ! - t`i,. (' S,f -( I R' -.d S A-�.,. I_-__ �E� , iPi_ _,._ i i.,_ _i_ .I'i_ _ ..LI _.I _rlTwl ., 4..."1 .) `: j s i ,,},_ ii.:., ; 1) i=C _1E L I€_. __., {61 _i _. E , C .., '--tE -,,-1� , THE (,u41'F,i W T1,F UTl ,'_ :`'T.L ., N4GC ...' "' , .zsi. _ RF 11701R I.,(, t3AJ°_ TO E? - - _J-,.+_:T, aF'L 11,_,�;s i- oI lii4;t'c ., v_,' 1 __A.r«. i:�;f .E 1_ TL nE -LPL_ , - _„ ii-t' 1 L.L::L'i' ,Tf'i id o, 1I- 11 IeuFt i^ I- a.-i rl ._ Li s,+`"1aJ F! + 1 C I 1 .�. 3 i 1 ._tEJ ... 1.. _a,:.€ A,�{,,,r ., e. 9., Tk,J P - "1 I Y lI I. 7 :d«._' T. CCP3 iJF'pi3 l,. l_ I i :„ 1 , F '-'D C- i r F' 41DOO r.�l. +P .e . _,.'.0 '.l,l ._ r r nF IH s G 1. "I �" 1 PI iI ' U 1 ,a #1 lL+EI i 1 ri I; ICI [ F 5 Of fLi S vl_. J _�,_r�, !.:CEL, LE A� Ix ';;, 1 IJ u-!. z i I 1 r Iasi.'- 711T Y(# JtJ C rl F Frt .;E 1 ,aJ 1" { F i,' L i ' IP' } 1^" IR M I- 'API / JPs: ."�' - i _ L 5E ti 1 _i -1 i 7'r i 7- 'PF II I }' _ i _i' 1` # 1 �._. _ 1 C <I_ r _ i 9C CC a «I Il l i'i( _i ,? a= BE - .' . ' F 'r . r 14-E'L C=,' .Tt J r 1 r `r a r 31 -I -,;1 L E I IN r l H 4L CE-,,,,_ ZHOMr . { �T 41„rF! .' m,r rl ie Fb 11 ' 'I AP, C DROP' I 1211 30" PIPE MAXIMUM DEP E Hi - 8' % � : . h ." F.,' L rr t t _ to,- ? 3 r .y-.�,��.,, Dewberry Engineers Inc. 4805 LAKE BROOK DRIVE SUITE 200 GLEN ALLEN, VA 23060 804.290.7957 (PHONE) 804.290.7928 ( FAX) aeM do ^ ,� q% �rzp� d - m z Lij cc 4-11 yp_ �, °�' a 2i _j Q — co SEAL airs ,4 , 1 S a� _ S S m , ramill " it j e , F a,- t x^ . �Y. r� lA }'n Yloy+ rr 1 . _11�1 d d f +k i I G r n"` r rr 1 � i 1+1 .i.r �.4 t'.. ry i .w. ^' ',n r'L,: pt , ,-) , Jr , ,L f ti t a ^'14 N ' •",. L' ' �, . 3, t " �;, - -� . KEY PLAN ii. _t � 2 01 /28/19 HCG COUNTY COMMENTS 1 11 12 18 DAB 1\ COUNTY COMMENTS No. DATE BY De�cripti#�n REVISIONS DRAWN BY APPROVED BY CHECKED BY DATE TITLE MNM DRM no JANUARY 28, 2019 " ilil]0 F; I a PROJECT NO. E A N IV Ulf WATER QUALITY COM-PLIANCE SUMMARY PRE RE -DEVELOPMENT F-7-7-7 FOREST/OPEN SPACE (16%) 0.10 AC L MANAGED TURF (63%) 0.35 AC IMPERVIOUS COVER (21%) 0.12 AC 'TOTAL AREA 0.57 AC DRAINAGE AREA ONSITE (STAIRS AND ONSITE TO #9) AREA = 0.23 AC CN 76 Tc =5MIN Ql 0.44 CFS Q10 = 1.27 CFS DRAINAGE AREA TO #9 (OFFSITE DET AREA = 0.15 AC CN 96 Tc 5 MIN Ql W 0.64 CFS Q10 = 1.21 CFS AC AREA = 0.18AC CN 61 Tc 5 MIN Ql 0.08 CFS Q10 = 0.45 CFS LIMITS OF - DISTURBANCE (THIS PLAN), JP, DRAINAGE AREA AO 2 AREA = 0.18 AC AREA 0.09 AC < x DRAINA GE AREA STAIRS� LIMITS C )F DISTURB X ,(ONS,ITE ) F_,F�OM�STi\IR�JVAY A �S K� X DRAINAGE AREA (OFFSITE N`" AREA 0.14 A C DETAINED) XI I x "K K r"x K "K J AREA 0.15 ACI X K"? V /x Z �n 11— Dewnerrillowe y Dewberry Engineers Inc. 4805 LAKE BROOK DRIVE SUITE 200 GLEN ALLEN, VA 23060 804.290.7957 (PHONE) 804.290.7928 (FX0 4­0 0 z E _0 0 C: 0 CD Z z E < 0 < W Cn C: Z CZ < W > z > < 0 Cr W W 4-a U) �_ W — _j _j C/) z z > 0 W 0 0 (n 0 z C) u (D 0 Z Z C) LL, i _j CD CIO W T_ CL c) ui C\j co CL _j SEAL Lic, Nf;, 031102'3 �e KEY PLAN SCALE 01 30' 60' 1 = i GRAPHIC SCALE 2 01/28/19 HCG COUNTY COMMENTS 1 11/12/18 DAB COUNTY COMMENTS No. DATE BY Description REVISIONS DRAWN BY M N M APPROVED BY DRM CHECKED BY DRM JANUARY 28, 2019 TITLE RE -DEVELOPED CONDIT10"NS PROJECT NO. 50075660 SHEET NO. E A WATER QUALITY COMPLIANCE SUMMARY POST -DEVELOPMENT 1­7 _7­771 FOREST/OPEN SPACE (1%) 0.01 AC E2.. MANAGED TURF (45%) 0.26 AC E I 121=� IMPERVIOUS COVER (54%) 0.30 AC x 0 7 7- ...... - ------ - ----- TOTAL AREA 0.57 AC REMOVAL REQUIREMENT 0.35 LBNR *SEE SHEET C6.2 FOR VRRM CALCULATIONS AND VERIFICATION OF NUTRIENT CREDIT PURCHASE. THE VRRM CALCULATIONS INCLUDE THE STAIRWAY ACCESS PROJECT (ACSA PROJECT NO: 2017-07), DATED 07/03/18. ADEQUATE OUTFALL 1: *SEE ADEQUATE OUTFALL NARRATIVE ON SHEET C6.2 DRAINAGE AREA TO #25 AREA = 0.34 AC DRAINAGE AREA TO #30 AREA = 0.05 AC DRAINAGE AREA TO DETENTION (#25 & AREA = 0.39 AC CN = 96 AID 2 Tc 5 MIN 0 e 771 DRAINAGE AREA (STAIRS ONSITE) xx AREA = 0.14 AC CN = 74 LIMITS OF DISTURBANCE I Tc 5 MIN � llr (THIS -PLAIN) AO* A G �o o 4"v'Zi 1 7 } i S • 6y'06�"�A Ai- _4N_ W 5 & 7 ll,�`Cl'l A 1-111,61Y A k"9 Y L 42e 4 Z Dewberry Dewberry Engineers Inc. 4805 LAKE BROOK DRIVE SUITE 200 GLEN ALLEN, VA 23060 804.290.7957 (PHONE) 804.290.7928 (FAX) -1-a C_ cr I a) 0 z 0 C: E _0 Cf) (D < DZZ E << O < W IL U) C: 0 u Wz cz z cr < < aL- > > 0 Cr Cr CL a) Ld >' W Lu W u) J z Z �Wo 0 > 0 U) W Z C) W -I �u)(1)� W 0 Z Z,-:- 0 < LLJ 0 ® 0 r cc cc CL co C) < W I- 3; CL 0 W0 C\j CL 0 U) SEAL ( V IN A N'H NY a"m bc- Nc.,037023 ­6 1p J� 19 44; it A L- KEY PLAN Oa 01 30' 60' GRAPHIC SCALE 11" = 30' 2 01/28/19 HCG I COUNTY COMMENTS 1 11/12/18 DAB COUNTY COMMENTS No. DATE BY Description REVISIONS DRAWN BY MNM APPROVED BY DRM CHECKED BY DRM DATE JANUARY 28, 2019 TITLE POST -DEVELOPED CONDITIONS PROJECT NO. 50075660 SHEET NO. C6.1 1 1 2 L 4411111� i1el -1111 VITA N E! LW 1101 VAR) It 1110"a a: Myl -a I N 11V rj 01 REDEVELOPMENT VRRM SPREADSHEET vi­ I, ull 111 11 1 111 1 COUNTY OF ALBEMARLE 111.1nity De\!elopinent Depai tnieiit Of 'I Tilt Construction Record Drawings (As-btinit) for VSMP The followinna is a list of information required on construction record drawings for stormwater facilities (reference Water Protection Ordinance 1. 17-422). it is preferable that the eonstrtiction record drawing be prej,)ared by someone ottler tflian the designer. Please do not 0 - provide design drailvings as consirtiction record drawings. A. A signed and dated professional seat of the preparing engineer or Surveyor. B. The name and addl-Oss of the firm and Individual preparing the drawings on the title sheet, C. The constrUcte-d location of all itenis associated with each facility, and the inspection records to verif proper dime n1sions, i naterl at s and installation. The items include, bUlt are not Innited to the follow-irl'o: 1. . ar pipe trenches and beddling, Jnckidiug Underdrains, Inspection Records and photo,orlphs fo Video Pipe Inspection for any pipes which are not accessible or viewable. I Updated Location with geo-coordinates of all facilities. 4. Verified Drainage Area maps for the drainage area treated, and[ for drainage to the facilities. 5. Current physical and topographic survey for all earthen Structures. Ponds should include a survey of the pond bottom. Surveys should verify pond volumes are per design. Corrections rnav be required for alterations from the desi-ri, 6plants, location and type. '17. Plans and profilestior all culverts, Pipes, Risers, Weirs and Drainage Structures - Display the installed type of drairlage structures,, culvert/pipe size, weirs, rnat(erials, inlets or end treatment(s)- Inlet and outlet protection, alignment and invert elevations compared to design. 13. Computations: For significant deviations from desl,cn, provide sealed, computations verifyin2 that the as -built conditioll is equivalent or better than design. 9, Ditch Lines - Displav the constructed location of all ditch lines and channels, includnw- typical sections and, linin'-S. 10, Easements - Show all -plaited easerneuts with dead book referen-ces labeled. Facilities and drainage must be within plattedcasements, Provide copies of recorded documents. 11. Guardrail, fences or other safety I U - 1 ';Altll'� provisioiis-Di.spla�,,�tliecoi-istr.ctecliocv,tio.-iot',it s- , f pr visions" fences, "Liardrail, includino drat' type, iength and apphe'd end t1rea(tnents, compared to dcsigll. 12. Material layers - biofilter media, stone layers, sand layers, keyways and cores miust be verified as to material types and depths. Include Inspection reports, boring or test pit reports and materials certifications. Biofilter media must be an approved state mix. 13. Access roads - show location of access roads, surface treatment, drainage, etc, its applicable. 14. Compaction reports are required to verify fill compaction in dams. 151. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning. 00 __ 1=001LAWM A 'V1 'j'sAY-AVA 1-11'C" �, Y CE3.lA'V-A ,LC. a V---'-i-- hfjb:!' F I , P.­'r:Su;artF Lu Uhal' certaill 1,11 r"u'lla"< it alsd u'Ti�f I " I, "firz Qbintlari'-" (as -Seller ar­ coulliv Si�tiiviww AttflhlI Alu­r�"I-�"' 1`1' Ohle W Ot 'i if I W'tau sex' aureed i-o st] `0_1� p"'r'luylds ni."' aw- o-mmi', vc, Pul-ch.-s"'. and o ri pulv""' si'u 0-, J_�' i"�sv➢� � - a- L _P - V lilt-nuinn-IT J'acillitv 'n thc �jt lr�"oI nftli41 ootilld­ ,30LIVCC­u��r0j�'L'.11 Cl-Cdi� S At th p ' lld4srac -"orltlIulit&l­rl1onT - ipaivid(, re, fc r", �"'owd tl Alslc�'iko,,_-4-ctlitent arid EIIN2 Ccnlparly ha_�"�o k! k P11 16c �'lll i o5p1h,ot us CBA Y_VA -­_Ct, rd II C13 1 Ij By r.a _vvc,n­i ul �tnvd subsc'r1t"Q-j 1_"(( rk,4. t1r,;­ 6 j, ;2 fli i 8 jj iilthorb-, --d Sirmatc)r=ii' "_'11 Icy a Vir'ojniun IRM-02'011 J H104111', Cot-111'NU11Y� N"IN c"l-MU'll M&Iufl eX Pn'%ss-: i­ ("ity 1 Cflutilt'V (' fit 11mjinla I la+i ity P- !g YA iUev; Alb,alark, Ceuutv Aulfluorib, Ptio;plwrms R1:1 _kfnii_s ntf"'r CBAV-li�% STORMWATER MANAGEMENT y WATER QUANTITY THIS PROJECT WAS ANALYZED FOR THE 1 YEAR AND 10 YEAR STORM EVENTS IN ORDER TO BE IN COMPLIANCE WITH CHANNEL AND FLOOD PROTECTION. WATER QUANTITY IS MET FOR THE PROJECT BECAUSE OF UNDERGROUND DETENTION PIPES LOCATED UNDER THE PROPOSED PARKING LOT EXPANSION. THERE ARE TWO OUTFALLS FOR THIS PROJECT, OUTFALL 1 IS AN EXISTING STORMSEWER SYSTEM DOWNSTREAM OF THE UNDERGROUND DETENTION SYSTEM AND OUTFALL 2 IS AN EXISTING DROP INLET ON THE NORTHWEST SIDE OF THE PROJECT AREA. OUTFALL 1: 11=39 =1100 alikiliogilim- jW131 It - I ME PRE -DEVELOPMENT PRE -DEVELOPMENT ALLOWABLE POST -DEVELOPMENT SITE (CFS) OFFSITE DETAINED DISCHARGE (CFS) (CFS) (CFS), 1 -YEAR 0.44 0.64 0.77 0.77 ENERGY BALANCE - OUTFALL 1 ACSA Parking Lot Otafall: I Engiaccr Abentark CcollnPl ChanncI'fyp,: Stomcewer Giulio, Dewberry Water Resources Ey?,gineerhirg STEP 1: Dtterrnine the Pre Developed, Forested, and Post Developed Conditions within the (fisturbedareailild the Offs'itC urea[ dRUnic', to j)C0_iCQk BLVIPa. Pre Developed Conditiorts Forested Cmiditioris Post Developed Conditions Weighted CN = 76.0 lNeightul CN = 55,0 Weighted CN = ii. 0 Area lac) = 0_1 Area (ac) = I Area (ac) = 0.4 P (hi.) = 103 P (ill) = 3.03 P (in.) = 3.03 STEP 2: Dcternnne the peak lischarge to,- each arca.The total pledevelopincrit dischiarge conihines offstc and reclewtopedconditions. P Pre Dewhaped Discharge Forested Conditions Discharge Post Development Discharge S 3.2 s 8.) S L4 'a 1.6 la 1 0.6 in 0. Q 0:11) 1.0 in Q (;a) M_' in Q (in) I . S in RLwc,ff%1oluiilc(RV) 0.020 au-ft Runoff Volume _RV) 0.006 4c-ft RuirioffVolume (RV) 0.058 ac tit Total Forested Peak Predevelopment Discharge 0.06 efs Discharge 0.44 cis (Front fivdroCAD) (Froin fk,dioCAD) STEP 3: Calculate A(liusted CN valor Using RL1110il Reduction provided in BMPs :N/A STEP 4: CaICL'latc Q,l using the citeigy balance equation. Only apply the irspro'vellicir: factor to 11he disturbed arcs. Eric, gy Balance Equation: Qj) ... 5 l.F_x(Qr_,,_l,,i,,lx RV,1,j)e.,,,,,,j 1 RV,... 1111provemen: Factor 0.9 ffoja' Pjedevej,,pnnnt Discharge (Olfsiic Volumes + firriproverilern Eli ­Ur x Pry Developed vollenc) (PoiI-Developincia Volume iw Voluuye)l QAi""hk: 0.1 cfs STEP 5: Caieuha&,,! NALxinium Aflo1 lbb2 Peak Discliarge. aximuni Allowabic Peal k Discharge(Maxinluin tQ:,r""Q,j;„�,,,i,i,-,) Exis inw, Ole-ile Area Disdiarge Q1,,_ = Total Foic-.ii Peak Dkchwge x (Forest Voflurnie + OMitc Volume 4 Offisile Volume) Qil"i 0.0 Cis Allowable Site Area Olisile Area Pvak Dischasiae P,_ak Discharge I cA + (Hych-ACADi 0,64 ek (Ellia-'ey Balance) Aladaturn Affillyabic Peak rliscbuargC M7 dfi, lQ,(fi-om Hycfi,-CAD� '0'77' cfs Channelis Adequate PRE -DEVELOPMENT o POST -DEVELOPMENT (CFS) (CFS) 1 O-YEAR 2.47 2.29 PRE -DEVELOPMENT ALLOWABLE POST -DEVELOPMENT SITE (CFS) DISCHARGE (CFS) (CFS) 1 -YEAR 0.08 0.11 0.06 Tff 1 FT wo lmffsu�� ACSA Parkinfl, Lot Oulfidl: 2 H( Albearle Comity charnxll'ypc_ Fxi"I Chcckor: Dewbmern vi Water Resomrces Eiizgbieeri jI STEP is Determine the Pre Dcveloi)el, Forested, Post Devc1opffl Conditions within the dimutbed area and the oh'site area draining, to pic"Jecl R-NIPs. Pre Developed Conditions Forested conditiolls Post Developed Cotielitions Weighted CN= 61.0 Weighted CIS = 55J) Weighted CN = 66.0 A re'l (ac) = 3'2 Areal (m) = 02 Area (ae) = 0. 1 11 !in.) = 3.013 P, (ill.) = 3.03 P (Ill.) = 3,03 ISTEP 2: Determine th.­ peak discharge, for each arem. 1 he total P-mlevelopaielli clischar&c combines oftsite and prc developed conditions. Pre Developed Discharge Forested Conditions Discharge Post Deveieipancnt Dis'llarge S 64 S S. 2 s 5 2 [a 1.3 la 1-6 la Lo Q (ijlj 0.2 in Q 6 n) 0.6 in Rl:iioi' Vlivaw lRV) 0.10(k ac-ft Rnnoff -%Ti-liume (RV } 0,003 lic-11 Permit Voliunne IRV) 6.004 ac-'u Total Forested Peak Prede.elopment DischarIge OJAI ci" Discharge 0.08 cfs (Frorn TR-.'­15 I (Fronl'I'R-55) ISTEP 3: Calculate .ArustedCN viluc using RUlOff PiW'0011 PrOV;vied in 13,kTIN rEP4: CalCUlinC Q_.,i_;,:,l, Using - --meriiy b"Iianc' e'luation. Only apply the unproven.- nt faclorio he disturbed a,ea. icigy Balance Equation: LFX'Qi,!=x ovetnent Faclof 0'C' 0"i Preue�loranen� Discharge i0flum ske Vole + (hilprovenlent Isictol x pco Pn-DuvoloVolurse) V (Post olun-- Offsite Volurne)] __ 0, I d", rEP 3: Calcuhved -.1&xhnu_-n Allowable ' P- all Discharge. axiinipan Atlovubl­ Peak Discharno = i'vlaxhllunl Q,11,_iij + Emsting Offsiti: Area Discharge =Tctal Vo'em Pea" ID:schayge x 01'olai.t Volume -+ Offsil'- 'Volunie i- Offsile Volurne) 0.0 ci's axiolunt "llov'able 0. 1 j c". 's Peak Discharge 'EP & _-Ensure is toss ilian the Peak Disci aj- (ffiart'!3R-55) 0.06 c", FLOOD PROTECTION IS MET BECAUSE THE PROPOSED 1 O-YEAR DISCHARGE AT OUTFALL 2 IS LESS THAN THE PRE DEVELOPMENT DISCHARGE. THE TABLE BELOW SUMMARIZES THE 10-YEAR FLOWS. SEE SHEET C6.4 FOR THE DISCHARGE COMPUTATIONS. PRE -DEVELOPMENT (CFS) POST -DEVELOPMENT (CFS) 1 O-YEAR. 0.45 0.27 Dewberry Engineers Inc. 4805 LAKE BROOK DRIVE SUITE 200 GLEN ALLEN, VA 23060 804.290.7957 (PHONE) 804.290.7928 (FAX) Mm 2 01/28/19 HCG COUNTY COMMENTS 1 11/12/18 DAB COUNTY COMMENTS No. DATE BY Description REVISIONS DRAWN BY MNM APPROVED BY DRM CHECKED BY E DATE JANUARY 28, 2019 PROJECT NO. 50075660 1j SHEET NO. E 3 El 6 ADEQUATE OUTFALL 1 HYDROCAD DIAGRAM 4S 5 S 1 as 213 3S Ex Onslo MA Doaked Fomswd E X Ex AO I (,STFP-A 6�,i 11 OWN1Fje DASWmam, Sit Am 'L 1 P Wage 7 1 4R Pm AD I (STRR4 6) DETENTION PIPES - STAGE- STORAGE / STAGE- DISCHARGE Pond 1 P: Storage Stage- ukmh�aoc C 373 to to Pond !P,.� Storage ,j 0 ?""i 4 olf.� G-90 MC 1,000 1,200 ?,400 i 809 stamp "UmMet) E'ev -� --jr] re all, Slo tge rf fapxr) �ctjbic-jpet) 3075 0 372.80 0 37225 1 37220 2 372A`5 4 3 7& Or) �8 37105 10 W & 111 is 3 7 115 20 37120 27 3 7 1255 35 37130 44 W35 3 7 14 U1 -6 3 7 & 4 55 79 37151) 93 37&55 109 373BO 126 37355 144 '373,70 -1634 37175 185 a7&80 208 M85 232 37&90 258 37195 285 07400, 314 37105 343 37110 37.3 37115 0`6 37420 439 17425 473 37130 507 37136 542 074AO 577 37?45 613 37410 60) 37?55 686 37060 723 3710 760 37170 70 37415 8315 37180, 873 37CBB oil 374RO 9419 37426 987 37100 152-5 375,55 1164 3700 lici 37W IA39 37&20 1:177 37525 1214 IWO IjSI 3775,,35 i,288 '-1 177�.,40 1- 25 3 E levatio r -310rapg(,", 37a45 0611 0150 a9p, 375.55 432 37160 AW 3750 1000 375�W) I 37515 i 566 375.60 107 375M5 1 A28 37510 1558 37W 1186 376.00 1,714 3 7 -5, 1155 1 � -7111, a 37110 1 Y641 3XIS 1187 37EEb20 1,807 37&26 1 A26, 37620 1 A42 AW5 115 "a 376,40 1 �86( 376�4-5 1A P� 376SO 1 Am. 37&55 - 1 , 89 4 37610 1,90C) 37165 1504 SWO 15010 37175 1111 37&60 1113 576.05 1514 37&90 111 Lz� 37&95 1MI6 y—g- awayl -0 .......... M­­5 DETENTION PIPES - STAGE- STORAGE / STAGE- DISCHARGE CON'T Stage -Discharge for Pond 1 P. Storage 1:7,!evatiun _F1r4-n,-@r-y E*)vation Primary H-evaltion Prirna�y levafion! 13.,irnafy r, "-- e t �, � L� Neu 37275 —t::, a00 _g 37183 _(� 1140 317191 --- M59 375,09 1 W 37Z77 CM0 373015 GAl 37191 Q 37aOl 1 M5 37Z79 000 a7187 0A1 37195 Ulu 37&03 a00 37ZBI 0,01 37189 Mi 37197 U60 W05 z 0 5? 37ZA3 0.02 217191 At 374A9 U1 376n7 a 1 37215 1102 37193 ON2 375Ml CAI 37&09 2. 1 �5 SM87 0.03 37305 &43 37W 011 37111 220 37239 W 37317 &43 37&05 0.61 30A13 2,25 372M CAS S7109 DA4 375M7 M62 376,15 z3o 37ZSZ W 37001 a44 37W W W17 Z 35 W95 CIS 27413 4144 :375_1 1 & 1 27119 2 43 W97 M 1 111, 37105 4 5 37W F 163 I S70.21 Z46 37Z99 all 37107 4S 37&15 37=3 '2, 57 373.01 0.13 374,09 66 3W 7 M63 37026 2.69 373112 1114 1 37111 aa 4' 37a 10 a6a 371127 a S 3�i 373B5 115 37113 (146 37121 M64 W29 2�98 37107 U&I 371 fS W WOO OAS 376,31 & I 373.09 117 31741,7 10') _4 -1 3 7 5, lb 6� 37613 312 371A f A 18 SX-19 07 1 W27 a6B 37:135 151 37113 1119 37?21 1148 37&29 M69 37617 3,70 37115 120 37423 DAS 37&31 a7i 37W &91 37117 1121 37425 4149 37133 U73 37R41 112 37119 M22 37427 W 37&35 07S 376.43 134 3712 f 023 3712S IS 4 -�7 37a37 a77 371145 157 37123 1124 37411 D 50 37510 OA0 376,47 181 37125 024- 374.33 010 375AI C162 37&49 &04 37127 0 2 5 3713S M50 S75AS MA5 SWI W 37129 1213, 371S7 (151 37145 ORa 376.53 a4l M31 02- ! 37429 a.51 37SA7 M91 1 W36 i5i. 59 37133 . 021 - - 4 31w4i 51 37149 013 1 W57 a 77 A 3ZI35 0.20 37TA3 152 37&5 1 n 96 0 1 37ES9 5AI-4 3T337 US 374A5 W2 37513 W 37W & 0 3 7 2,� - 319 0, 2 f) 2A74.47 0. 5 2 375AS i 13 1 37623 417 3714t C,30 37TA9 1 0,53 375W 1 k6 WaSS 6.30 373AS M30 37151 OA3 375W lag 301i 643 37145 Cal 37163 115a S75.61 113 WOW 635 37147 0 W 374AS E54 3 75X3 L16 37ayl W 373A9 032 37007 Q j1d 37SW 120 37&7q 080 37151 113;� 37,59 OW 37SO7 L23 375,75 6,11,11. 37153 ISA 37161 &55 37%_ 127 37&77 T04 37155 133 37163 Cos 37&71 q I 0, 3%79 115 37157 014 37165 1155 1135 37481 T 26i 373BG 024 374A7 a56 1 37478 129 1 37&83 737 37161 135 374;69 W 37177 !A3 W05 T47 37&63 A 3,5, 37431 1156 37579 W 3%S7 T58 373 A5 136 1 37433 4157 37181 a , . 01 376B9 168 373A7 136 S7175 W 37523 105 S7&01 T T 373ZU 037 37417 017 37505, 119 37623 7, ES a 3717t QUO 1 37?79 am 37187 1 A4 37&95 198 37173 018' 37,01 '10B 37189 118 37197 U407 37335 MSS S7423 98 S7501 L 7 2, M 77 a39 1 37185 U50 37&90 137 37319 S9 374MY OM 37W t8l 87181, 010 374A9 OA9 37&97 t 8 6� 1 YEAR STORM CALCULATIONW. EXISTING CONDITIONS Summary for Subcatchmnt 4S-- Ex Onslite Runcol OA4 ds,, @ 11 �197 hrl:s, Vdun�re= 0�02D al", Deplh> 1,DT RwaH by SCS, m-201 rneiLiod, U'H=,SCv,-j, Time Span= 0-010-24-00 lirs, dt= (101 hrs Type It 24-hr 1 YEAR Raiin�.fall=3.03i' -nmaa, (aa) C AN J 0. 01! 9? 0 61 ''Wif- F-1 51)fK- C! 100 98 Impervious OM40 ET FwaMed - B Us 0130 76 "WhWd Avwagc () � fl, 3 0 56.52% Pcrvim.�I, Area 0 �, 100 433,43%, Imperviuus Ar. a Tr_� Long"th 5-lope volodity carizatily iirr-,�",rl) ( f fn� et) (f tuil Ift/suc,, 5 � 0 01rect Entry, Summary for Subcatchmetit 55, Oftsite Detained Rams 01400 1116ho, Wume= 0, 0 .21 2 a f Die- p t h --. 2. 5 a " RmaN by SCS TR-20 frilethod- IiH=SGS, WeYWAGN. Tirne 53part=, 0,01,12A,00 hr,,,,! dt= 0,01 1-Irs 'Fypev H 24-i-ir I YEAR Rainf�,-ill=3.03` _Ar�___ L 0010 61 Turf - B Solls (D. f 50 9 6 VVe i g h i ed A v e I, a g e CA � 11, 101 6.67s�`, Pervicus Anea D_ f 4,101 93.33% irnpervio-is. Area To Long& Slop,:, Valoci�y Capacity Description - _Zfs ChImcl Summary for Reach 7R: Ex AO -1 (STRA4 15) (521 1-TrA: InIeVC00f conddions not evahjaired ` -i)iv Are -a, 0-380 a -1, 6 h > 1,64" lor 1 YEAIR event , rf I L ac� 63� .54% hripervious, li-iflaw Dept,, Mum 118 cN (Zi, 11_96hrs, Volume= 0152 all oumew I AB CW 6p 1116 jW% Vahxne- 11052,adl, Atien� ON Lag- CD rAn Rokhq by Dyn-Stor-ind fr�ethod, _Finw- Span= 1042?00 hn� A= 001 hfs lAax- Veiocity- 12-85 fps, rvilin- Travel Tin-le� 01 min Avig. V0,aci-�i � 4-18 1ps, Avq. Travel Tirne=; 0.2 min Peak Storage= 5 ct @ 11,96 hms Awenge DeyK ea Peak Wrage= A 1 & E3a&VFFLjfl D&f,,Ih= 2�00' Fio�vv Area- 31 r�f, Gapac�q -1, 3339 cris 24.0" ROU-nd Pipe n" 0113 Lynyhw 515 Wpe= f13503 7' lndetlnvert,�368.67, 0utlel1nvert­3'49_58' FORESTED CONDITIONS Surnmaryfor Subcatchment 6S, Forested r1c,iric"I", 0.06 ct @ 1211 hm,, Valum,;e= 0. Q 0 6 a t, U ea p t, hi > 0. 2,10 " Mmoff by SOS TR-20 Method, -nrne srjar.,= u�00-24;00 hrs� dl= 0.01 hns Type 11 24-hr 1 YEAR Haidah-103" A I - P, � 1 1,` � i c', r,---.'N 0 e, s c, r i j � t io I i �4 0. 38 Q 5 5 Pro -vea as fort-,-sted Wo Are -,,,a Tc Length &upe Vehoaity Cap,--tcity Fja�crjptimi (rail) __ 1?2ev __ -LiLff!) f Dfred Entry, Surnmary for Suilb4,-atchment 2S: Detention Pipe DA 'Rulnou 1.670s@ 11161Ns Vokirn;e= � f� Depth"", 2_55f`!" Runorl by $(�,`3 T'R-20 rrulthod, UH=_-$(;St Weigniverl-01"A, Time Span= 0.01-D-24A00 ihns, cit= CW1 has Type 11 24-hr I YIE-AIR RaIrJk- Des 01120 61 TURK 130ILL B 1 0-3970 98 VVI P E h- V 1 -0 I_ J 8 0190 96 WAghtW Avarage 0.02U 5� 13% Pervicius Aren 0. �31 7 Ul 94.87% 11,wipervious A�ea To Langith Sbpe Veh-oc�ity Capa-c-'Jivy, Descriptim Surnniary for Subcatchment 3S. Staircase - Site Arem Aunotl 024 Q @ 1197 him, Vofiurrie= 0.oi-! i- 0ep-th"', --cu,�)3" Runva,,l by SCS TF'I-20, i-nethord], UH=SGS, Weighreall-CX line Span= UXD-2100 1­wsi dl� 01,01 hrs -1 " ype N 241-hr I YEAF9, Ar i- , a q) �1%1 o ill (1,1090 61" ON SO EB CLOW 98 Imperwous, (1140 74 V4 u ig, � 1 t e d, A,,, r a gi e, 0, 0 9 0 !,34,2_9% Pomvious An_7�a 0 � 05 0 0 57-71 % Im p ery 1 t_,ius Ar�, a Tc- Sjop�:, Vdad; CApady CWsajdan 5,0 Direct Entry, Summary -for Pond 1P: Storage 1,riflo,w Ai ea 0_390 ac, 94,87% Impervious, lrflk:i�x Depflh --, 2�58` f'or I YEAR even! 1.67 & @ 11 X5 hrs, Vofiume= 0, 04 af OXIVU4,4 0,57 at 1216 hrs, Vahjnie= 0.084 a � Aten= 66%, Lag= 6.4 min Primary 0.57 aN 12113 Ws, Wan- U084 at RULAQji by Dyn-Stordrd nneti-todjime Span= 0.01),-24.030 hrs, (1111111= 0.01 hrs '�I� F eak 'Bev= 374.7W @ W6 bs S,,_rr1.Area= 756 sf Strurage� 826 air Plug- Flow fi�eterilicyn ti rn 7, 8 rri i n calailated for r108-1 al � 100% cif infibov) Genter-cf-10ass WL Ime. 71 r5n ( 77&3 - 77116) vollurne Invert Avail, Star acle Stare-Y-le Des(.-,t,,iptjoir #1 C Filound 42 Pipe L,,�� 64H 5�- 0,0048 42 371061 1094 ol: 36.0" Round 36" Pipe Lm I 1 7 91 -5 (-, f -1, otal Ava.[Jabde Slor age Paylk FWWJr,,j�a, OLJ�tle�t Egos" #1 Phimaj 3 105' 40' Vart. Oritice/Grate G�", CL60c! 42 primaq 3 7 Q3 0' Outfall Weir, C:-, 13.3 C�j' fSei!�'i'JBLC�kt) [).")0 0.00 -1.75 1.75 2_25 22.25 4.00 4,02 14 e i g h t (f e Is Q 1. 2 8 1 I_-i 1. � i ju, 0. 00, 0.0 0 1 . 0 0 0 0 1, .22 8 Prima"y OutFlow hAax=M57 cis @ 12.0" hirs ' TliV_-368.70' (Dynotinic Tailwater';j 0ril i ce�,'G rate (0ririce Cantrols 0.57 cfs @ 5.50 1ps) trols fl-010 cfs) ­2:�:Oiuttall Weir ( aont Pond I P,, Storagge 0 0 i b 4 5 6 7 U 9 10 1i 12 13 rq �5 16 17 16 !9 20 21 _-��2 2�i 24 TAU pwm) A PROPOSED CONDITIONS CON'T Summary for Reach 4K Pro AO I (ST, RM 6) �,152j Hirt fiIet OLMe'� ciandilions not evahuated In,flow Area - 0130 x 79.25% irnpervious, lnfkaw DepVh, > 2.14" for 1 Y�-':AR e_VE,:nt Inflov"I 0,77ds@ 1118hirs, Volume= OM95 a! 0110m, C07 ch @ 1119 Nq Vdumw f, 1,, 0 9 5 f-.,x f , A i t e t La g 0. 1 T I i,,, -i Routing by Uyn-,LStor-hrldl rrielho6 Tit-ne '_-��'pan� 0.00-24.00 lirs, dt� 0.01 hrs Max- Valsadty� 11,59ilps, Ivilim. Travei Time- 0.1 min Pvvg, Veloc,;ty = 4,63 fps, Avg,, Travel Tinne= 0-2 min Peak Storage= 4 of @ 11 -99 hrs� Average. Depth at Peak Siorage= R"il' Bavk-Ftidl Deq,th= 2;0rj' Ffic_�vv Area= 11 sf. Capacity= 133.64 cfs 24-00" Round Pipe n- OM13 Lenoth= 545 Slape= 03490 kilef jnvert= -,3688.6.0', Cjutlei lnven= '349.58' Reach 4R: Pro AO -1 (STRU11 6) nos 01 61 Avg, Flow De "th=-O. 11' Oak 24�O 01 Rot.1*1 Pipe gab n 0 035 IT =6 490,'T Q25 Callacity=133.64 Os 0.2 0 15 01 em 05- ............... 1 7 �"k '9 1 1 17 1 -ii A 0 22 23 34 nmc� N®R MEANS 1090110111 RD I 1012 116111gra x Runalf WW@ 1126hrs2 Voluvne= 0,057af, Depih> 2,9.123," 1) y '2�, TV1-20 rneiliod, LA-1;=, W6ghled-C?j The �83pan= 0,00-24-00 hrs, dl= 0.01 firs, u nu, 1T Type 11 24-1-ir 10 YEAR RaJniW11=5.54" Area_(- C 11%] D �r� t n, ac eapript- 0 - 0 9 0 61 Turf- B &-ifs + 0� j 00 9 8 1 M p e r V i 0 u s + 0 � 040 55, Forested - P" solls 0230 7f) WkgMed Paenge 0.120 56.-,52�1,, Pewviuus Area 0. 100 43.48% lriipe,,.rvirjTLi,,3 Area Tri LP_n!igjfh,, velodfly Capacity De'scripticin 01fecl Enuy, Summary for Subcatchment 5S: Oftsite Detained F 121 at 6y 1106 hm, Vdums= 01�063,at, Depth> 511?" Ruinolf hy 23C�STWU rnelf-iod, LWSCS Weig�hie­d-CINL, TWle, Sp�'311= C1(00-24_00 hm, dl= 0A01 hrs Type 11 2?1w 10 YEAR RaWaR-5.51' ___4Ve,:a (�f � L,� 1D e q c. r i p h q I I (1140 98 SperWix- 6 0 91� Weighted Average 11 ""1 806T!;�, Pervious An,,,,,a 0. i 4C. 9.1`1_1�313% Inifinervinus Ane�,-; Tru Length GlbpAa Velmty Capxavity Des-f-ription., AM. 31 >ummary for Reach TV IN A0 I "WRAA 6) Hint� inIat;,0,jrP1 not, eeva�uated In1lov; Area 1380 ac, 6110'r ImperviOUS, Int'llaIv Depth for 101 YEAFR avent hnflcnvv, Z4701P 1116hm., Voiluiyne= 0, 120 al LI V 1 in�, 1v (11201 at Atlr�,wi= Lag= OL r-rO 2.47 W OP I 115 hm, Wume� Routing by 1-n-eihnal, 111a-ie Span= QXO-24�00, hrs, di= OiTi, hra ii, ax. Veto �,,, i ty= 1, &!5_ 10 fp s � iNAIr, � Ty avel Tj me. icj � 1I mN i n Av,,--,,,, Vekacity = 4_79- fps, Avg, firavel _f1me= 0.2 anin j r-'ealk-, Storage= 78 rf C�b -1 ­i.gb hrs 6, Average Depth w, Peak Siocage,= 0� ir 91 Ra1n111,c,-Pufl C)epth= 2.OQ' " �ovv,Area= :311 sf, Capaoity= 133-839 ci's 24-OD' Rorjrid Pipe n- 041.3 Length� 54�5' Slope— 01�3'- 03 lnle,t lnverl,= 7, C-Aitlet Invert- 349-58T 2�. 11 1044dra Dewberry Engineers Inc. 4805 LAKE BROOK DRIVE SUITE 200 GLEN ALLEN, VA 23060 804.290,7957 (PHONE) 801290 1928 (FAX) 4_j C) z E 7- 0 _0 Z z E 0 < 0 0^ (F LWI 0. V.) C 0 X z C5 E :5 LIJ Ott > LIJ llj LIJ U LIJ z z > 0 C) LIJ 0 cr) W _j LIJ _j zRIM Z) 0 02 LLI 0 z z 0 =13 0 �e W _j < fir < 0 o CO LIJ 'Tr- 0- 0 4-W Q W U N Colo 0- CC") W ,-xT-Vg, SEAL 411- j� f 1A -4 KEY PLAN SCALE 2 1 1 01/28/19 11/12/18 VHCG DAB COUNTY COMMENTS' COUNTY COMMENTS AN- DATE BY Deschpoon REVITONS DRNNNBY NANM APPROVED BY DRKM CHECKED BY DRM DATEE JANUARY 21 2019 PROJECT NO. 50075660 SHEET NO. MW I 10 YEAR STORM CALCULATIONS CON'T PROPOSED CONDITIONS 2 1 3 M ADEQUATE OUTFALL 2 EXISTING CONDITIONS W, no 14 I NO W Summary for '-Suboatchmeni 2S: Detention Pipe DA F-1 i i n o 3. i4 -s -1 firsV, ,iu1nne= U1 qvn07 brs, rjt= -211 Tt 1 Ype, --�, 4-hr !lI YEAFRi RlalnW�=5-54' Area OXI) 111P 8 0. 3 -1 98 UV, P E R V 10 U Lea0. 3 211 1 i 96 W I h ", OR 1 i "W- t-,- 9 0 10, 0,2 J 51 Pe F In,u s A - -a Lnth l oVelo,,'�-.,ty GNP%adfY TIc eNU Ater) f -'m If 81 t)jrect Entry, Summary for Sir bcatchment 3S: Staircase - Site Area rl L 8 1 Qff 0, 73 c a @ I I � 96 hrs- Vol OM E�� IDJ'133 at, Dlewh> 230" F, Runoff, �-jy TP-20 i-nethaad, L H=SCFtz Vv`--gl Ne--'I'm- -pan= "j;rle H 24-hr 10 Y a- Air-3 F 3 ea- i n fa 1 5, A A -D'esc-riDdon 0,09fl, 611 Ti=jrf- Soil' 8 0 -0 50 98 � e ni'l 0 u s 0, ll 40 7 4 r?V'eilghted Average 00100 35.71 % I rripervious Area TrLiefigth, Slope, velobly cgmicltv Description at"'ll') 1niS H-C 5. Direrl Entry, Summary for Pond I P: Storage Infhnm Area 0,390 af,, 94.87% 1n)perN1jloi.,-rs, lnflr_,°akj Deptli-,, -,- q-,,Uq- 40,r 10 Yr-Afj event 11.96 �irss, VrAurn4a= 0 16, 5 ali 41 o vil .8() CfS --.03 1 r-S, VOILPTIE�= -F 4-5 rnin� @ 12 , h - I r, 5 at, j-,R-n� 430/1G., La Prirn,,:,iry -1 -80 ef a 12-0-3 hrs, VDIF me= , 5 af Fic,uting by Dvn-Slor-hid rnellricxdi, Tirne Span= 0,00-214.00 11-frF, dt= 0,91 1,1:rs Peak Oev- 375t'cu !2,133 hrs '�-Dtuage= 1 "684 Plu a7l' v detentirlon tirmi-,= cal,ulalerj frx 01 65 0100% ai inflow) ,q-Fk) Genter-of-Mass (Ietdrne= L110-8 rnin s' 765.4 - 734.7 voll'ime, InVert AvailZtorage W i 3 7'��-' 7 5' f--32 20 42.0" Pound -42" Pipe W0,048',,' #-D 3 7 -3 01 6' 1.2`94 d' 36a(Y' Ro, und 36" Pipe b� 1083,-' S- 0.0050 7' 1.915 d T�jtal Avallabie Slcwav, D e v kc. te o a t ii ri�! Iriverl OLIO(It DevIces #.,g Prilmary 7, 5 1 4.0" Vert. Orifice;'Graterw.1600 V 2 pri rn Cal, Y 75 0 1 0 U t f a 11 We I r , C = 3 OffS t e tj 0. 0 C-) 0. 0 0 i v7 7 2-51' 2 225. 4. 0 0, 4; C) �,Or) 0.00 1.-O 1,001 11.28 Pfirnary OutFlow Mlax=--1.81D ofs 40 -1,2,.03 firs &M' (Dvnakrn1c Taiku,,-qer u 36 1 Orifice/G role o,"Oriffi,x, Cmtrols C0.3. ch-4 8;,3, fps" -21==OLitfall Weir (Weir Controls 'r, r07 ofs @ fps) Pond 1P: Storage .Ivdr NaDh -7 UJ r'YOran A Oa 0390 a C iniflow r A Peak Elev=375.96` -1 m684 of Storage- L 4� 5 P, 1 A S, i is a Time (hours) Surnmary for Reach 4R, Pro AO 1 [Sff RM -6)11 1`1 HInt-- -Indhjnns nat, evadue, ed -T, IrTflo,,ry D, od--�, > 4�4,f I hn,flovv 0.530 ac, 9-95 f- I .Pervil-�uS PAR evei-lt t,rlf law 229 ch @ 12-02 h'---s, Vcalurap- f-J, 19 7 al h !0 u f0t ki, 9 s, -`2-02' r-, vcflurrae-= Roi-fling ibtv D,,w-U10-dam -X4 -e-Wnrj, 'Tilme �p -,aii= IIC rs, 0,DO hrs lMa.,�e- VeInC-l'"v= 1IR-012"D fps-,, hdiin- T'ravel Tlrna= - I r M AvcI-;. •e I o c, i, hr, �, .75Q3 fps, - q- 'TrHavei IFIMIP.= Ilia - n -i �,7al P e�k - g-- -,Dept� Bank-Fui?! f3ep.,HI-4� 2010 Fluw Are- a 3 1 :s I G a p a c it, y 13 3 C-`-, 4 C f S 9 1 1Y 1'� 4.1 --- Pive - - Hl HMO ,n= C101,31 Length= 54,5' L-'-­-,1o1r)e= 0349D 4 + !,r)lel invren= 0', '21,ulled Inven= 3'49.58 hL I 1 961 �mNlarnllrlg- Me-[ Devlop-, #2 dse:, -exc-exied n A r� a,�Av .reap - MW aiI,1 94-87% pe-vIlm,,is, Inflovv Nplth -x 8,611 1 or 100 Vii -vent -11 0-H 1i - 2 8 0 af Infln rs, Vc 5,. 2 1 ct s @ I I )hLjl-rje= C)U-, 1(y,"y' - �s @ 11-96 1] rs Voluate=- I , At' 5P - 2 1- c; T I - -4 -n� 0'To, L�- rin�n Prir!,:,Fy PO (�,!3 @ 11 -,-q43h r 0 , 2 all Rowinig by Dyn,-Sit r-h-ld methoyli, if-ne Spain= 0,00-24-00 I'trs-, df= I ihfs Pea k R1 -,--v = -076 5 11" @ 11 96 iuS �5- j rj, A re�q� 1 43 St: racje� 1,8,88 ;ters V a T� P1 Lii--, ciiv deil.e n trat �i c n ei = 9 - 3� nit' . ua lcutaf ed f or 0 -2 810, L I',, cif of fli" aw 'I C,e--nler-of-Pvll�� s, clet tl�, e= 9-2 nnin 75,3-6 - 744.4 1 pqr- V 0111a rn Slioraq-e D -1-71PD0111 0, 3 7 2. " 7 6226 4-2.(Y' Psou nd,42" Pipe 64,6` #2 373.06' 1,294 (.4 36.0" Round 36" Pipe L�- 8�'3ff S= 10,0050T 1,9 1 IS ci Towl AAjalkablit Storage Dev`�'ce Rvt-i- lwat: # prlma'ry 3372.753' 4,0" Vert. Oflfice!Grate #2 pri lei-a"rV 375.20' Outfall W!elr, Q= 3.33 Offset ffeelr) 0.00 1100 1.75 1,7015 2,22:"5 2-2!:55 4.00 4.00 .Hedcihtifee�t) 1.28 1-00, 1.00 0-00 0-00 1.00 1.00 1,28 Primary OutFlow Max��5.20, lclfs @ 11.96, 1-irs HIN--376.51' 11-0,1=368.90 (Dynarnic TaiWater" rZ LZoutfall weir ( W'edr Cujrtrols 4.40 cis @ 2.72 fps) Pond 1: '51orage 1-1, 0 1hfI o C rea- J, 'J Peak E1,e =3716.517 Storag emen ,888 cf 7 39 1 L, 11 12 13. '14 It 17 18 Iq 2`0 21 2`2 3 24 Tirne (hourv) PROPOSED CONDITIONS -j 'A I Dewberry Engineers Inc. 4805 LAKE BROOK DRIVE SUITE 200 GLEN ALLEN, VA 23060 4290.7957 0 804.290.7928 (FAX) 4-j E 0 Z Cn z Z C Z z > W < > LLJ Q- x .2) 1jj > W ) 17- z W 0 0 z 0 -1 LJJ W :D U) JO r1K Z z bA 0 LLJ tl LJJ Q C:) < CC 0c) Uj y- CL 0 W C\j SEAL 0 j C.v JIN W4 T !-fffl Y v 0 51 M KEY PLAN SCALE 2 01/28/19 HCG COUNTY COMMENTS 1 11/12/18 DAB COUNTY COMMENTS No. DATE BY Description REVISIONS DRAWN BY APPROVED BY CHECKED BY DATE al It E JANUARY 28, 2019 PROJECT NO. 50075660 SHEET NO. WE