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HomeMy WebLinkAboutWPO202100028 Plan - VSMP 2021-06-08ALBEMARLE HIGH SCHOOL MODULAR CLASSROOM ADDITION AND RENOVATION SITE DATA: ENGINEER: TIMMONS GROUP 608 PRESTON AVENUE, SUITE 200 CHARLOTTESVILLE, VA 22902 TELEPHONE: 434-327-1688 CONTACT: BRYAN CICHOCKI, P.E. BRYAN.CICHOCKI@TI MMONS.COM TAX MAP PARCEL: 06000-00-00-078AO LIMITS OF DISTURBANCE: 0.78 AC ZONING: RA SETBACK: 75'FRONT 25' SIDE 35' REAR MAGISTERIAL DISTRICT: JACK JOUETT SOURCE TOPOGRAPHY: TIMMONS GROUP. OCT 2019 DATUM: HORIZONTAL: NAD83 VIRGINIA STATE GRID SOUTH ZONE VERTICAL: NAVD88 ESTABLISHED THROUGH LEICA SMARTNET BUILDING HEIGHT: 18.33 FT (ADDITION) BUILDING AREA: 7.750 SF PROPOSED USES: MODULAR CLASSROOM ADDITION AND ASSOCIATED SITE WORK WETLAND IMPACTS: NONE WATER SUPPLY: PRIVATE SANITARY SEWER: EXISTING SEWER SYSTEM DRAINAGE DISTRICT: IVY CREEK THERE ARE NO CRITICAL SLOPES LOCATED WITHIN THE PROJECT LIMITS. THERE ARE NO CONSTRUCTION ACTIVITIES PROPOSED WITHIN THE 100-YR FLOODPLAIN. THE SITE IS LOCATED IN A WATER SUPPLY PROTECTION DISTRICT. VSMP PLAN COUNTY OF ALBEMARLE, VIRGINIA ALBEMARLE COUNTY PUBLIC SCHOOLS DISTRICT 658 PHEASANT LANE law lozo ;TLING OAKS GLECRESS 601 SOUTH IVY INGLESIDE E BARRETT ACRES Country Club ,w3 06/03/2021 IVY FARM 1015 SITE LOCATION MONTVUE The Colonnades 0 bat Barracks 655 zso 657 W U U U b UK N Ivy Creek RIDGE Foundation SQUIRREL RIDGE ROSLYN RIDGE BERKMAR FOUR SEASONS ROSLYN HEIGHTS 1493 BERKELEY 65] MINOR TOWNHOUSES Commonwealth OAK FOREST QCharlott Fashion GLENWO STATIC DWIBRANCHLANDS WESTGATE BARTERBROOK Seminole Square Q Shopping Center KNOLLWOOD THE MEADOWS ]57 BYi zw Barracks Road VICINITY MAP SCALE 1" : 2000' OWNER: ALBEMARLE COUNTY SCHOOL BOARD 401 MCINTIRE RD CHARLOTTESVILLE, VA 22902 CONTACT: JOE LETTERI TELEPHONE: (434) 975-9340 FAX: (434) 975-9341 ENGINEER OF RECORD: TIMMONS GROUP 608 PRESTON AVE. SUITE 200, CHARLOTTESVILLE, VA 22903 CONTACT: BRYAN CICHOCKI, P.E. TELEPHONE: 434-327-5380 GREENBRIER HEIGHTS GREENBRIER Charlottesville APPROVED by the Albemarle County Community Development Department Date 06/08/21 File WP0202100028 Sheet List Table Sheet Number Sheet Title C0.0 COVER C1.0 NOTES AND DETAILS C2.0 EXISTING CONDITIONS AND DEMOLITION PLAN C3.0 EROSION AND SEDIMENT CONTROL NOTES & DETAILS C3.1 EROSION AND SEDIMENT CONTROL NOTES & DETAILS C3.2 EROSION AND SEDIMENT CONTROL PLAN - PHASE I C3.3 EROSION AND SEDIMENT CONTROL PLAN - PHASE II C4.0 LAYOUT AND UTILITY PLAN C5.0 GRADING AND DRAINAGE PLAN C6.0 STORMWATER MANAGEMENT PLAN C6.1 STORMWATER CALCULATIONS TOTAL # OF SHEETS: 11 SIGNATURE PANEL: APPROVAL DEPARTMENT OF COMMUNITY DEVELOPMENT PLANNING & ZONING ENGINEERING INSPECTIONS ARCHITECTURAL REVIEW BOARD DEPARTMENT OF FIRE AND RESCUE ALBEMARLE COUNTY SERVICE AUTHORITY VIRGINIA DEPARTMENT OF TRANSPORTATION HEALTH DEPARTMENT DATE Bryan D. Cichocki Lie. No. 53741 1-? /z( Z � W H U) a W a o� Z oN L a > U) LU Of rq N W O N Q M DATE 0511012021 DRAWN BY KR DESIGNED BY KR CHECKED BY BC SCALE AS SHOWN Vl 0a 0z Z_ C7 Vl a= J U U UW J LL Eu W m J Q J U_ o� 0U) J o 0 i U J m 2 = a W J= 0 U W J C a GW m WJ a w 0 U JOB NO. 695.005 SHEET NO. C0.0 L GENERALNOTES SITE PLAN LEGEND W WATER WIRL� STORM 100 STORM MANHOLE 100 DROP INLET & STRUCTURE NO. CURB CURB & GUTTER _ = LIMITS OF DISTURBANCE FENCE X MAJOR CONTOUR XXX MINOR CONTOUR XXX r TC 725.94 PROPOSED SPOT ELEVATION Q PARKING COUNT ACSA GENERAL WATER & SEWER CONDITIONS GRADING TC = TOP OF CURB EP = EDGE OF PAVEMENT TW = TOP OF WALL BW = BOTTOM OF WALL TS = TOP OF STAIRS BS = BOTTOM OF STAIRS JUNE 27, 2019 1. WORK SHALL BE SUBJECT TO INSPECTION BY ALBEMARLE COUNTY SERVICE AUTHORITY (ACSA) INSPECTORS. THE CONTRACTOR WILL BE RESPONSIBLE FOR NOTIFYING THE PROPER ACSA OFFICIALS AT THE START OF THE WORK. 2. THE ALBEMARLE COUNTY SERVICE AUTHORITY SHALL HAVE ACCESS TO USE THE AIRSPACE ABOVE THE LOCATIONS OF CONSTRUCTION FOR THE FLIGHT OF UNMANNED AERIAL VEHICLES FOR THE PURPOSE OF IMAGERY COLLECTION. 3. THE LOCATION OF EXISTING UTILITIES ACROSS THE LINE OF THE PROPOSED WORK ARE NOT NECESSARILY SHOWN ON THE PLANS AND WHERE SHOWN ARE ONLY APPROXIMATELY CORRECT. THE CONTRACTOR SHALL, ON HIS OWN INITIATIVE, LOCATE ALL UNDERGROUND LINES AND STRUCTURES, AS NECESSARY. 4. ALL MATERIALS AND CONSTRUCTION SHALL COMPLY WITH THE CURRENT EDITION OF THE GENERAL WATER AND SEWER CONSTRUCTION SPECIFICATIONS, AS ADOPTED BY THE ACSA. 5. DATUM FOR ALL ELEVATIONS SHOWN IN NATIONAL GEODETIC SURVEY. 6. THE CONTRACTOR SHALL BE RESPONSIBLE FOR NOTIFYING MISS UTILITY (1-800-552-7001). 7. ALL WATER AND SEWER PIPES SHALL HAVE A MINIMUM OF THREE AND A HALF (3.5) FEET OF COVER MEASURED FROM THE TOP OF PIPE, OVER THE CENTERLINE OF PIPE. THIS INCLUDES ALL FIRE HYDRANT LINES, SERVICE LATERALS AND WATER LINES, ETC. 8. ALL WATER AND SEWER APPURTENANCES ARE TO BE LOCATED OUTSIDE OF ROADSIDE DITCHES. 9. VALVES ON DEAD END LINES SHALL BE RODDED TO PROVIDE ADEQUATE RESTRAINT FOR THE VALVE DURING A FUTURE EXTENSION OF THE LINE. 10. TREES ARE NOT PERMITTED IN THE ACSA EASEMENT. 11. THE CONTRACTOR SHALL BE RESPONSIBLE TO COMPLY WITH THE NO -LEAD REGULATION REGARDING BRASS FITTINGS EFFECTIVE JANUARY 4, 2014 (SENATE BILL 3874 WHICH AMENDS THE SAFE DRINKING WATER ACT). 12. THE SEWER LATERAL BEYOND THE CONNECTION AT THE SEWER MAIN SHALL BE PRIVATE. THE SEWER LATERAL STUB -OUT SHALL UNDERGO THE ACSA LOW-PRESSURE AIR TEST TO SATISFY COUNTY TESTING REQUIREMENTS. VISUAL INSPECTION OF THE SEWER LATERAL STUB -OUT SHALL BE WITNESSED BY THE COUNTY BUILDING INSPECTIONS DEPARTMENT. THIS INSPECTION SHALL OCCUR UNDER AN "OTHER PLUMBING" PERMIT WHICH MUST BE OBTAINED BY THE CONTRACTOR. 13. THE SEWER LATERAL BEYOND THE CONNECTION AT A MANHOLE SHALL BE PRIVATE. VISUAL INSPECTION AND PRESSURE TESTING OF THE SEWER LATERAL SHALL BE WITNESSED BY THE COUNTY BUILDING INSPECTIONS DEPARTMENT. THIS INSPECTION SHALL OCCUR UNDER AN "OTHER PLUMBING" PERMIT WHICH MUST BE OBTAINED BY THE CONTRACTOR. 14. THE FIRE SPRINKLER MAIN DOWNSTREAM OF THE GATE VALVE IS PRIVATE. VISUAL INSPECTION AND TESTING OF THE FIRE SPRINKLER MAIN DOWNSTREAM OF THE GATE VALVE SHALL BE WITNESSED BY THE COUNTY BUILDING INSPECTIONS DEPARTMENT. THIS INSPECTION SHALL OCCUR UNDER AN "OTHER PLUMBING" PERMIT WHICH MUST BE OBTAINED BY THE CONTRACTOR. 15. ALL FLUSHING OF FIRE SPRINKLER MAINS SHALL NOT OCCUR UNTIL APPROVAL IS GIVEN BY THE ACSA. GENERAL CONSTRUCTION NOTES FOR EROSION AND SEDIMENT CONTROL 1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING, BUT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. 11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND OTHER DEBRIS. 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECTION 5.1.28. 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13-301 OF THE CODE OF ALBEMARLE. 14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7:OOAM TO 9:OOPM. 15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAT MAINTAINS LATERAL SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, PHYSICAL DAMAGE TO ADJACENT LAND AND STRUCTURES/IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET BECAUSE OF SLIDES, SINKING, OR COLLAPSE. 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO PERMANENT STORMWATER MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT, UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY. 17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75 LBS/ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 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 GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR. 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBS/1000SF, INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL. FERTILIZER SHALL BE APPLIED AT 1000LBS/ACRE AND CONSIST OF A 10-20-10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT 180LBS/ACRE AND CONSIST OF 95% KENTUCKY 31 OR TALL FESCUE AND 0-5% PERENNIAL RYEGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS TO BE APPLIED AT 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR. 19. MAINTENANCE: ALL MEASURES SHALL BE INSPECTED WEEKLY AND AFTER EACH RAINFALL EVENT. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES SHALL BE REPAIRED IMMEDIATELY. SILT TRAPS SHALL BE CLEANED WHEN 50% OF THE WET STORAGE VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS SHALL BE RESEEDED WHEN NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYKES WHICH COLLECT SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND REPAIRED IMMEDIATELY. 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR. 21. THIS PLAN SHALL BE VOID IF THE OWNER DOES NOT OBTAIN A PERMIT WTIHIN 1 YEAR OF THE DATE OF APPROVAL. (WATER PROTECTION ORDINANCE SECTION 17-204G.) 22. PERMANENT VEGETATION SHALL BE INSTALLED ON ALL DENUDED AREAS WITHIN NINE (9) MONTHS AFTER THE DATE THE LAND DISTURBING ACTIVITY COMMENCED. (WATER PROTECTION ORDINANCE SECTION 17-207B) 1. CONTRACTOR SHALL COORDINATE ALL REQUIREMENTS FOR AS BUILT DOCUMENTATION, AS REQUIRED BY THE LOCALITY. THIS INCLUDES, BUT IS NOT LIMITED TO, TESTING, INSTALLATION DOCUMENTATION, SURVEY, ETC. ALL REQUIREMENTS SHALL BE DISCUSSED WITH THE LOCALITY PRIOR TO THE BEGINNING CONSTRUCTION. 2. ALL MATERIALS AND CONSTRUCTION SHALL BE IN ACCORDANCE WITH CURRENT VIRGINIA DEPARTMENT OF TRANSPORTATION'S SPECIFICATIONS AND STANDARDS. 3. PRIOR TO ANY CONSTRUCTION, THE CONTRACTOR SHALL CONSULT THE ENGINEER AND VERIFY THE APPROVAL OF THE PLANS BY ALL FEDERAL, STATE AND LOCAL AGENCIES. 3. LAND USE PERMITS (LUP-A) MUST BE OBTAINED FROM THE VIRGINIA DEPARTMENT OF TRANSPORTATION PRIOR TO BEGINNING ANY CONSTRUCTION WITHIN THE EXISTING STATE MAINTAINED RIGHT OF WAY (INCLUDING ACCESS). 4. VDOT IS TO RECEIVE WRITTEN NOTIFICATION 48 HOURS PRIOR TO COMMENCING WITH INITIAL CONSTRUCTION ACTIVITIES. 5. THE CONTRACTOR SHALL VERIFY THE ELEVATIONS OF ALL POINTS OF CONNECTION OR PROPOSED WORK TO EXISTING CURBS, SANITARY LINES, WATERLINES, ETC, PRIOR TO CONSTRUCTION. 6. UPON DISCOVERY OF SOILS THAT ARE UNSUITABLE FOR FOUNDATIONS, SUBGRADES, OR OTHER ROADWAY CONSTRUCTION PURPOSES, THE CONTRACTOR SHALL IMMEDIATELY CONTACT THE OWNER. THESE AREAS SHALL BE EXCAVATED BELOW PLAN GRADE AS DIRECTED BY THE OWNER'S REPRESENTATIVE, BACKFILLED WITH SUITABLE MATERIAL AND COMPACTED IN ACCORDANCE WITH SPECIFICATIONS. 7. ALL STORM SEWER DESIGN AND CONSTRUCTION TO BE IN ACCORDANCE WITH VDOT STANDARDS. 8. ALL STORM SEWER PIPE SHALL BE REINFORCED TONGUE AND GROVE CONCRETE PIPE IN ACCORDANCE WITH ASTM-C-76. PIPE WITHIN THE RIGHT OF WAY SHALL BE MINIMUM CLASS III OR GREATER IN ACCORDANCE WITH CURRENT VDOT STANDARDS AND SPECIFICATIONS. 9. IF PRE -CAST UNITS ARE TO BE USED, VDOT SHALL BE NOTIFIED AND THE MANUFACTURER SHALL SUBMIT DRAWING DETAILS FOR REVIEW. CERTIFICATION AND VDOT STAMP WILL BE REQUIRED ON ALL UNITS. 10. ALL CONCRETE SHALL BE A3-AE (AIR ENTRAINED 3,000 PSI), UNLESS OTHERWISE NOTED. 11. ALL ENTRANCES ARE TO BE DESIGNED AND CONSTRUCTED IN ACCORDANCE WITH CURRENT VDOT STANDARDS. 12. DESIGN CHANGES, SPECIFIED MATERIALS CHANGES AND/OR FIELD CHANGES FROM THE APPROVED PLANS NEED TO BE RESUBMITTED TO THE ENGINEER PRIOR TO PROCEEDING WITH THE WORK. A LETTER OF EXPLANATION SHALL ACCOMPANY THE REVISED PLANS AND/OR THE DRAINAGE CALCULATIONS, WHICH MUST BE SUBMITTED AND APPROVED BY THE ENGINEER. 13. CONTRACTOR SHALL VERIFY LOCATION AND ELEVATION OF ALL UNDERGROUND UTILITIES SHOWN ON PLANS IN AREAS OF CONSTRUCTION PRIOR TO STARTING WORK. CONTACT ENGINEER IMMEDIATELY IF LOCATION OR ELEVATION IS DIFFERENT FROM THAT SHOWN ON PLAN. IF THERE APPEARS TO BE A CONFLICT, AND/OR UPON DISCOVERY OF ANY UTILITY NOT SHOWN ON THIS PLAN, CALL MISS UTILITY OF CENTRAL VIRGINIA AT 1-800-552-7001. THE OWNER SHALL BE RESPONSIBLE FOR THE RELOCATION OF ANY UTILITY WITHIN EXISTING AND/OR PROPOSED RIGHT-OF-WAY REQUIRED BY THE DEVELOPMENT. 14. CASING SLEEVES SHALL BE PLACED AT ALL ROAD CROSSINGS FOR GAS, POWER, TELEPHONE AND CABLE TV SERVICE TRUNK LINES. 15. THE INSTALLATION OF SEWER, WATER, AND GAS MAINS (INCLUDING SERVICE LATERALS AND SLEEVES) SHALL BE COMPLETED PRIOR TO THE PLACEMENT OF AGGREGATE BASE COURSE. 16. VDOT & ALBEMARLE COUNTY APPROVAL OF CONSTRUCTION PLANS DOES NOT PRECLUDE THE RIGHT TO REQUIRE ADDITIONAL FACILITIES AS DEEMED NECESSARY. 17. VDOT SHALL HAVE APPROVED THE AGGREGATE BASE COURSE(S) FOR DEPTH, TEMPLATE AND PERFORMED THE REQUIRED FIELD INSPECTION (PROOF ROLL) PRIOR TO PLACEMENT OF ANY SURFACE COURSE(S). CONTACT THE OWNER'S REPRESENTATIVE FOR INSPECTION FOR THE AGGREGATE BASE COURSE(S) 48 HOURS PRIOR TO APPLICATION OF THE SURFACE COURSE(S). 18. A PRIME COAT SEAL BETWEEN THE AGGREGATE BASE AND BITUMINOUS CONCRETE WILL BE REQUIRED AT THE RATE OF 0.30 GALLONS PER SQUARE YARD (REC-250 PRIME COAT) PER VDOT STANDARDS AND SPECIFICATIONS. 19. THE SCHEDULING OF AGGREGATE BASE INSTALLATION AND SUBSEQUENT PAVING ACTIVITIES SHALL ACCOMMODATE FORECAST WEATHER CONDITIONS PER SECTION 315 OF THE ROAD AND BRIDGE SPECIFICATIONS. 20. THE OWNER'S REPRESENTATIVE SHALL HAVE APPROVED THE AGGREGATE BASE COURSE(S) FOR DEPTH, TEMPLATE AND PERFORMED THE REQUIRED FIELD INSPECTION (PROOF ROLL) PRIOR TO PLACEMENT OF ANY SURFACE COURSE(S). CONTACT THE OWNER FOR INSPECTION FOR THE AGGREGATE BASE COURSE(S) 48 HOURS PRIOR TO APPLICATION OF THE SURFACE COURSE(S). 21. A GEOTECHNICAL ENGINEER IS TO ASCERTAIN CAUSE AND CERTIFY RECOMMENDED METHOD OF REPAIR FOR ALL PAVEMENT STRUCTURAL FAILURES PRIOR TO STATE ACCEPTANCE. 22. ALL VEGETATION AND ORGANIC MATERIAL IS TO BE REMOVED FROM THE PROPOSED PAVEMENT LIMITS PRIOR TO CONDITIONING OF THE SUBGRADE. 23. CERTIFICATION AND SOURCE OF MATERIALS ARE TO BE SUBMITTED TO THE OWNER'S REPRESENTATIVE FOR ALL MATERIALS AND BE IN ACCORDANCE WITH THE ROAD AND BRIDGE SPECIFICATIONS, AND ROAD AND BRIDGE STANDARDS. 24. APPROVAL OF A DETAILED CONSTRUCTION SEQUENCING/MAINTENANCE OF TRAFFIC NARRATIVE FOR THE WORK ZONE IS A PREREQUISITE FOR ISSUANCE OF A LAND USE PERMIT ALLOWING ACCESS TO AND CONSTRUCTION WITHIN VDOT MAINTAINED RIGHT OF WAY. (N/A) 25. GRADE LINES ON PROFILES DENOTE FINISHED GRADE OF CENTER LINE OF ROAD. 26. ALL APPROACH GUTTERS TO SAG INLETS SHALL MAINTAIN A MINIMUM SLOPE OF 0.004 ft./ft. 27. WHERE A TYPE "B" NOSE IS SPECIFIED ON AN INLET IN CONJUNCTION WITH ROLL FACE CURB AND GUTTER OR CG-7, THERE SHALL BE A 20' TRANSITION ON EACH SIDE OF THE INLET. (N/A) 28. CONTRACTOR SHALL PROVIDE A SEQUENCE OF CONSTRUCTION/MAINTENANCE OF TRAFFIC PLAN IN ACCORDANCE WITH THE STANDARDS AND GUIDELINES CONTAINED IN THE 2011 EDITION OF THE VIRGINIA WORK AREA PROTECTION MANUAL FOR REVIEW BY THE ENGINEER, OWNER'S REPRESENTATIVE, AND VDOT PRIOR TO STARTING WORK THAT IMPACTS TRAFFIC ON STATE ROADS. 29. ALL NEW HANDICAP ACCESSIBLE REQUIREMENTS ON -SITE AND WITHIN ALL NEW STRUCTURES SHALL COMPLY WITH THE 2015 UNIFORM STATEWIDE BUILDING CODE, 2015 VIRGINIA CONSTRUCTION CODE, AND ICC/ANSI A117.1-03. 30. THE CLEAR ZONE IS TO BE FREE OF STORED MATERIALS AND PARKED EQUIPMENT. 31. HORIZONTAL AND VERTICAL SIGHT DISTANCES SHALL BE FREE OF PARKED VEHICLES. 32. ALL EXCAVATED AREAS WITHIN THE CLEAR ZONE THAT HAVE A DEPTH GREATER THAN 6" SHALL HAVE A 6:1 STONE WEDGE PLACED AT THE END OF THE DAY. 33. RETAINING WALLS GREATER THAN 3 FEET IN HEIGHT REQUIRE A SEPARATE BUILDING PERMIT. WALLS EXCEEDING 4 FEET IN HEIGHT REQUIRE A STAMPED ENGINEERED DESIGN ALSO. WALLS REQUIRE INSPECTIONS AS OUTLINED IN THE USBC. 34. BUILDINGS AND STRUCTURES BUILT BEFORE JANUARY 1, 1985 MUST HAVE AN ASBESTOS SURVEY PERFORMED IN ORDER TO APPLY FOR A PERMIT. ASBESTOS REMOVAL PERMITS ARE REQUIRED IF POSITIVE FOR SUCH SUCH FROM ALBEMARLE COUNTY AND VDOLI. CONTACT VDOLI FOR ADDITIONAL REQUIREMENTS AND PERMITS FOR DEMOLITION PROJECTS. BLASTING NOTES 1. BLASTING SHALL NOT BE PERMITTED ON THIS PROJECT. ALBEMARLE COUNTY STORMWATER MANAGEMENT NOTES 1. ALL DAMS AND CONSTRUCTED FILL TO BE WITHIN 95% OF MAXIMUM DRY DENSITY AND 2% OF OPTIMUM MOISTURE CONTENT. ALL FILL MATERIAL TO BE APPROVED BY A GEOTECHNICAL ENGINEER. A GEOTECHNICAL ENGINEER IS TO BE PRESENT DURING CONSTRUCTION OF DAMS. 2. PIPE AND RISER JOINTS ARE TO BE WATERTIGHT WITHIN STORMWATER MANAGEMENT FACILITIES. 3. FOR TEMPORARY SEDIMENT TRAPS OR BASINS WHICH ARE TO BE CONVERTED TO PERMANENT STORMWATER MANAGEMENT FACILITIES; CONVERSION IS NOT TO TAKE PLACE UNTIL THE SITE IS STABILIZED, AND PERMISSION HAS BEEN OBTAINED FROM THE COUNTY EROSION CONTROL INSPECTOR. EXIST GRADE METAL INSPECTION FRAME W/ SOLID LID (NEENAH R-1975 OR EQUIVALENT) 3" CONCRETE COLLAR CRUSHED STONE BEDDING 6" DI CLEANOUT PLUG AT END OF LINE CLEANOUT DETAIL No Scale A ° 0 M.H. STEP C t P.) NOTE, MIN, 60' DIAMETER MANHOLE REQUIRED, MANHOLE PVC CROSS USE APPROVED FLEXIBLE RUBBER �V BOOT. O 61 I GASKETED STOP COUPLING PIPE STRAPS ° (STAINLESS STEEL) o SPACED EVERY 2' VERTICALLY a __�90• RESTRAINED BEND PLAN PROFILE MIN, 6' BEDDING WITH NO. 613 STONE 1. HEIGHT OF THE VERTICAL DROP PIPE WILL BE DETERMINED BY THE ACSA, BUT SHALL NOT BE LESS THAN TWO (2) FEET. 2. VERTICAL DROP PIPE SHALL BE SDR 26 P.V.C, SIZED THE SAME ASTHE INCOMING PIPE AND CONNECTED TO THE DROP FITTING WITH STANDARD GASKETJOINT. 3, VERTICAL DROP PIPE 5HALL BE STRAPPED TO THE MANHOLE AT PIPE JOINTS. STRAPS SHALL BE MADE OF STAINLESS STEEL. 4. SHAPE INVERTAS NEEDED TO PROVIDE SMOOTH TRANSITION FROM DROP CONNECTION DISCHARGE POINT TO SPRING LINE OF MANHOLE INVERT. S. DROP CONNECTION DISCHARGE FITTING SHALL BE ORIENTED AT45 DEGREES, INTO THE FLOW. 6. VERTICAL DROP PIPE SHALL BE INSTALLED AT 90 DEGREES FROM THE ACCESS STEPS. 7, MINIMUM 72" DIAMETER MANHOLE REQUIRED FOR A SINGLE 10" OR 12" DIAMETER DROP CONNECTION, OR TWO 8" DIAMETER DROP CONNECTIONS. STANDARD INTERNAL DROP CONNECTION N.T.S. FIG. S-1-C2 E 2" BITUMINOUS CONCRETE SURFACE COURSE - SM-9.5A (PLACED IN SINGLE LIFT) 4" TYPE 21 B AGGREGATE BASE COURSE COMPACTED SUBGRADE DENOTES LIGHT DUTY ASPHALT PAVEMENT ON PLANS LIGHT DUTY ASPHALT PAVEMENT SECTION No Scale 1 m REW W x 31e MALE PIPE CWPt1N6 OR APPROVED EtlIN ,mew YDTF CYPER FOR USE ON ATTACHED ANGLE FAWLY REM'Nn. SENWC OR MM REMENI& AND IR .n.N SER"CES. r,n',n' TEE NOTE NO, srkATED m"Nxs Y GUAL SERVICE fl 1' COMPPEESNIN A 3/4' MALE pre C"uNu OR APPROVED EDO& 1'TYEx YDFT CDPP01 OO FOR USE DETACHED FAMLY Al MERE A. WIERE AM IRRICAIIDN METED IS TPROSERVES METED 5 NOT FRONDED. SINGLE SERVICE NOSE: T) SADDLES sxAu RE USED DN Pw Pa+E. CAST IR[N W FlWSHEO MADE ]r-15 RWDKRRRT Y . METER Rp3 3D' MN. WPPEA&TfFR T/D SEND COUNUNG� ps METER CdiPCRAMW YTfP :`..,Y i NECVSGMON NECEY N}}'aN,�' SAND OR MST HNDER ':h r j' N7 . ♦' DlNffliR ORNN PI IP' LONTC sliNE POtl(ET, vCpT i�j.nT. NW MIA" MICK E56S-INCH J:+i4), $PEG 1.q3, N0. 5) WREGATE !'f?,:r'.+:�wN4n, jvbJi. a TYPICAL SERVICE LATERAL INSTALLATION (5/8" & 1" METERS) NITS FIG. W-6A ID-10 COVER LIFT NOTCH 14 1/2" 2 t2 t/2" 3/8" WATER CAST IRON LID 18• METER BOX ryry^,� b�1ry ry, ry t 6• 6" EXTENSION 6" PIPE SLOT (2 PLACES) NOTES: (1) A 1-3/4" DIAMETER HOLE IS REQUIRED IN THE UD FOR TOUCH READ METERS. TYPICAL METER BOXES (5/813-1" METERS) NTS FIG W-7 TD-13 Y � Bryan D. Cichodd Lie. Na 53741 /3lzf Wre 9q am O oc H z O a U V to w 0 z O w F DATE 0511012021 DRAWN BY KR DESIGNED BY KR CHECKED BY BC SCALE AS SHOWN V / 5m OQ 0zz LL (D V / Qz J U U Uw J Q J m Q J Q J w U Q O�Q U7 O Lf) O LU '^ _U O V/ J Z m 2 � a } W~ z J O U w Q w m W Q co J Q IOB NO. 44695.00 SHEET NO. C1.0 MHS TOP=56754' INV. 1N=559.06' 8" PVC (SW, SCH) INV. IN=,558.94' (SE) INV. OUT=558.86' 8" PVC W�� W� �563- \ \ IN - - _ _ - -NN.` \[T. WATERLINE PER Ep `s6S. \ \ \ ACSA MAPPING / _ _ ROCKARMOR/ WK5 / POWERPOLE \ \MAPL SLOPE PROTEGE I 7 \3 � N0�2/AL ` \ _ —570— Ar ACRE \ \ VAR HARDWOODS >6" / / / \ \ NN \ \ \ ♦ I �-r \ b SRO \ \ OGT i \ \ \ 3„7nrncLE` \ \ ` /I I 36)\ `� TELCOM / \UGr �FSIGN- / \��'�s»i2 N. \ VAULT / \ \ 'GY'?P,EN\ l F-2327\ WK85(POW 24'POR(j4R _ IOLE)ER/ \ \ \ _ \ 6@TE POST �� \ _ SIGN: I _ _ SIGN 'ryIRE/ v R \ GATEPOST ME / W ro 28"OAK\ � / � � n� --SIGN \-- ---- -12"OAK is \O 5 \ CAB/NET/'+li" 18"MAPLE �CKSRO- — — - / II `_` / l / --573---- \ \ \ L -lNlt 4V56B.88'8"eVC- / ILLV OUT=560.12' 8"AVE _ _ / -574 - 1 \ -573- _ - - - - - - - - - _ PETAL, i-- - -- 82'�5T-\METAL\ LAD(DING 575� l - 97'x\5.7' �575' IV CT/ METAL RAMP / / I \ W/RAIL 576- N to / / If l l l /l I/3"MAPLE / Q h / // W I KD \ IL I\ / / I ® 55'�MAP LE { l I I / EX. I LEVEL {?Cedi�C c l I I l l MODULAR CLASSROOM EXISTING SOCCER GOALS TO BE / / ' I I / BUILDING G , G ¢ MAILaokl RELOCATED AS NEEDED DURING / / I I I�J CONSTRUCTION \ \ 1 I I e CONS \s REF4 PAD \ l 1 ` 1 I 1 \ \ N. \\ / / \ \ \ \ \ \ / \ 1 \ (PART OF) TMP 60-78A METAL COUNTY OFALBEMARLE EDGEOFF/ELDAND \\ \\ \\ \I�e LANDING EXISTING GOAL \ \ \� SCHOOL BOARD \ r 8.3'x53' \ \ DB. 287, PG. 414 \ \ \ \ \ l >> ` \ W/CANOPY ZONED: RA (RURAL AREAS) / / \ \PATH 1 EP -----''— / E I METAL RAMP .&P� 580 PSPNA�T V N co \ \ cove Nq S W/RAIL / w p6jl'i'/ItL CO S. o� HANDRAIL (T DOOR)/t S7: W 7W�4/L h (A�^PH. RAMP) �W ®� Bt OR CO OW (W sr R DEL. DOOR / BtOG CONC. 'C1' L=6.0' SK/pS/ W APRON THRESH=580.71' \ m ROLL DOOR BENCHMARK \ CONC. G /VA/L SET 1 11 I (BLD�/NF IN %NTED A' / EL 1=580.25' / h EX. 1 LEVEL BLOCK SCHOOL FACILITY (RAISED CLEARANCE) ALBEMARLE HIGH SCHOOL' 2775 HYDRAULIC RD. 8'WATERLINE PER l ACSA MAPPING / '9\ —w, L m 00 Q z Y Bryan D. CiehDCla Lie. Na 53741 w 9Y CL O oc Z O CL u U Lu w Z O w II DATE 0511012021 DRAWN BY KR DESIGNED BY KR CHECKED BY BC SCALE 1"=20' O� O' e t Of 11 U) F J � C UL Q J CF c 0L C 7 L ,^ C V J � 2` Y J C ll aE L c W< 11,61 SCALE 1 "=20' 0 20' 40' )OB NO. 695.0 SHEET NO. C2.0 EROSION AND SEDIMENT CONTROL NARRATIVE: PROJECT DESCRIPTION THIS PROJECT INCLUDES THE CONSTRUCTION OF A MODULAR CLASSROOM ADDITION, SITE IMPORVEMENTS, AND ASSOCIATED UTILITIES & LANDSCAPING. LIMITS OF CLEARING AND GRADING ARE 0.78 AC. ADJACENT PROPERTY THE PROPERTY IS BOUNDED BY LAMBS ROAD TO THE NORTH, HYDRAULIC ROAD TO THE EAST, AND COMMERCIAL BUILDING TO THE SOUTH AND JACK JOUETT MIDDLE SCHOOL TO THE WEST OWNED BY ALBEMARLE COUNTY SCHOOLS. EXISTING SITE CONDITIONS THE EXISTING SITE IS ALBEMARLE HIGH SCHOOL. OFF -SITE AREAS NO OFFS]TE AREAS WILL BE DISTURBED. ANY OFF -SITE LAND -DISTURBING ACTIVITY ASSOCIATED WITH THE PROJECT SHALL HAVE AN APPROVED ESC PLAN. CRITICAL EROSION AREAS EARLY ESTABLISHMENT AND PROPER MAINTENANCE OF PERIMETER CONTROLS WILL PROVIDE SEDIMENTATION CONTROL. ALL SLOPES STEEPER THAN 3:1 SHALL BE STABILIZED WITH BLANKET MATTING. EROSION AND SEDIMENT CONTROL MEASURES UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE CURRENT ADDITION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. THE MINIMUM STANDARDS OF THE VESCH SHALL BE ADHERED TO UNLESS OTHERWISE WAIVED OR APPROVED BY A VARIANCE BY LOCAL AUTHORITIES HAVING JURISDICTION. STORMWATER RUNOFF CONSIDERATIONS STORMWATER QUALITY WILL BE TREATED THROUGH THE PURCHASE OF OFFSITE CREDITS. STORMWATER QUANTITY WILL BE HANDLED THROUGH LEVEL SPREADERS RETURNING CONCENTRATED FLOW TO SHEET FLOW AS NECESSARY. STRUCTURAL PRACTICES: 1. TEMPORARY CONSTRUCTION ENTRANCE - 3.02 A TEMPORARY CONSTRUCTION ENTRANCE SHALL BE PROVIDED AT THE LOCATION INDICATED ON THE PLANS. IT IS IMPERATIVE THAT THIS MEASURE BE MAINTAINED THROUGHOUT CONSTRUCTION. ITS PURPOSE IS TO REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. 2. SILT FENCE BARRIER - 3.05 SILT FENCE SEDIMENT BARRIERS SHAL L BE INSTALLED DOWNSLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT -LADEN RUNOFF FROM SHEET FLOW AS INDICATED. ITS PURPOSE IS TO INTERCEPT SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS AND PREVENT SEDIMENT FROM LEAVING THE SITE. 3. STORM DRAIN INLET PROTECTION - 3.07 STONE FILTERS SHALL BE PLACED AT THE INLET OF ALL DRAINAGE STRUCTURES AS INDICATED ON PLANS. ITS PURPOSE IS TO PREVENT SEDIMENT FROM ENTERING THE STORM DRAINAGE SYSTEM PRIOR TO PERMANENT STABILIZATION. 4. CULVERT INLET PROTECTION - 3.08 A SEDIMENT FILTER LOCATED AT THE INLET TO A CULVERT TO PREVENT SEDIMENT FROM ENTERING THE SYSTEM PRIOR TO PERMANENT STABILIZATION. 5. DIVERSION DIKE - 3.09, 3.11 & 3.12 A TEMPORARY RIDGE OF COMPACTED SOIL TO DIVERT WATER FROM A CERTAIN AREA. 6. SEDIMENT TRAP - 3.13 A TEMPORARY BARRIER OR DAM WITH A CONTROLLED STORMWATER RELEASE TO DETAIN SEDIMENT -LADEN RUNOFF FROM DISTURBED AREAS IN "WET" AND "DRY" STORAGE LONG ENOUGH FOR THE MAJORITY OF SEDIMENT TO SETTLE OUT. 6.1. MAINTENANCE OF SEDIMENT TRAP - INSPECT TRAP EMBANKMENT WEEKLY TO ENSURE IT IS STRUCTURALLY SOUND AND HAS NOT BEEN DAMAGED DURING CONSTRUCTION ACTIVITIES. THE TRAP SHALL BE CHECKED AFTER EVERY RAINFALL EVENT. ONCE THE SEDIMENT HAS REACHED THE DESIGNATED CLEANOUT LEVEL IT SHALL BE REMOVED AND PROPERLY DISPOSED OF. 7. OUTLET PROTECTION - 3.18 STRUCTURALLY LINED APRONS OR OTHER ACCEPTABLE ENERGY DISSIPATING DEVICES PLACED AT THE OUTLETS OF PIPES OR PAVED CHANNEL SECTIONS. 8. DUST CONTROL - 3.39 DUST CONTROL IS TO BE USED THROUGH THE SITE IN AREAS SUBJECT TO SURFACE AND AIR MOVEMENT. VEGETATIVE PRACTICES: 1. TOPSOIL (TEMPORARY STOCKPILE) - 3.30 TOPSOIL SHALL BE STRIPPED FROM AREAS TO BE GRADED AND STOCKPILED FOR LATER SPREADING. STOCKPILE LOCATIONS SHALL BE LOCATED ONSITE AND SHALL BE STABILIZED WITH TEMPORARY SILT FENCE AND VEGETATION. 2. TEMPORARY SEEDING - 3.31 ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR MORE THAN 30 DAYS SHALL BE SEEDED WITH FAST GERMINATING TEMPORARY VEGETATION IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS. SELECTION OF THE SEED MIXTURE SHALL DEPEND ON THE TIME OF YEAR IT IS APPLIED. 3. PERMANENT SEEDING - 3.32 FOLLOWING GRADING ACTIVITIES, ESTABLISH PERENNIAL VEGETATIVE COVER BY PLANTING SEED TO REDUCE EROSION, STABILIZE DISTURBED AREAS, AND ENHANCE NATURAL BEAUTY. 4. SOIL STABILIZATION BLANKETS & MATTING - 3.36 A PROTECTIVE COVERING BLANKET OR SOIL STABILIZATION MAT SHALL BE INSTALLED ON PREPARED PLANTING AREAS OF CHANNELS TO PROTECT AND PROMOTE VEGETATION ESTABLISHMENT AND REINFORCE ESTABLISHED TURF. MANAGEMENT STRATEGIES 1. PROVIDE SEDIMENT TRAPPING MEASURES AS A FIRST STEP IN GRADING, SEED AND MULCH IMMEDIATELY FOLLOWING INSTALLATION. 2. PROVIDE TEMPORARY SEEDING OR OTHER STABILIZATION IMMEDIATELY AFTER GRADING. 3. ISOLATE TRENCHING FOR UTILITIES AND DRAINAGE FROM DOWNSTREAM CONVEYANCES IN ORDER TO MINIMIZE PERIMETER CONTROLS. 4. ALL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE MAINTAINED UNTIL THEY ARE NO LONGER REQUIRED TO COMPLY WITH THE CONTRACT DOCUMENTS OR STATE LAW. PERMANENT STABILIZATION ALL NON -PAVED AREAS DISTURBED BY CONSTRUCTION SHALL BE STABILIZED WITH PERMANENT SEEDING IMMEDIATELY FOLLOWING FINISHED GRADING. SEEDING SHALL BE IN ACCORDANCE WITH STD. & SPEC. 3.32, PERMANENT SEEDING. SEED TYPE SHALL BE AS SPECIFIED FOR "MINIMUM CARE LAWNS" AND "GENERAL SLOPES" IN THE HANDBOOK FOR SLOPES LESS THAN 3:1. FOR SLOPES GREATER THAN 3:1, SEED TYPE SHALL BE AS SPECIFIED FOR "LOW MAINTENANCE SLOPES" IN TABLE 3.32-D OF THE HANDBOOK. FOR MULCH (STRAW OR FIBER) SHALL BE USED ON ALL SEEDED SURFACES. IN ALL SEEDING OPERATIONS SEED, FERTILIZER AND LIME SHALL BE APPLIED PRIOR TO MULCHING. SEQUENCE OF INSTALLATION PHASE I (SEE SHEET C3.2) 1. A PRE -CONSTRUCTION MEETING IS REQUIRED WITH ALBEMARLE COUNTY E&S INSPECTOR, CONTRACTOR, OWNER, AND ENGINEER. THIS MEETING SHALL TAKE PLACE ON -SITE. CLEARING LIMITS MUST BE FLAGGED PRIOR TO THE MEETING WITH ONE (1) WEEK OF NOTICE. 2. INSTALL CONSTRUCTION ENTRANCE, SILT FENCE, AND TREE PROTECTION FENCING. 3. AFTER ALL EROSION AND SEDIMENT CONTROL MEASURES ARE IN PLACE, SITE WORK CAN BEGIN. 4. ROUGH GRADE PROJECT AREA. 5. SEED ALL DENUDED AREAS PER VESCH STANDARDS. PHASE II (SEE SHEET C3.3) 1. FINE GRADE PROJECT AREA. APPLY PERMANENT SOIL STABILIZATION TO THESE AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS ACHIEVED. 2. ALL STORMWATER PIPING & STRUCTURES, INCLUDING DETENTION FACILITIES, SHALL BE INSPECTED FOR SILT/SEDIMENT. IF PRESENT, SILT/SEDIMENT SHALL BE CLEANED OUT FOR THE SYSTEM TO THE SATISFACTION OF THE E&S INSPECTOR. 3. APPLY PERMANENT SOIL STABILIZATION TO THESE AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS ACHIEVED. 4. ONCE CONSTRUCTION IS COMPLETE AND ALL CONTRIBUTING AREAS ARE STABILIZED, EROSION CONTROL MEASURES CAN BE REMOVED UPON APPROVAL FROM THE E&S INSPECTOR. MINIMUM STANDARDS: AN EROSION AND SEDIMENT CONTROL PROGRAM ADOPTED BY A DISTRICT OR LOCALITY MUST BE CONSISTENT WITH THE FOLLOWING CRITERIA, TECHNIQUES AND METHODS: MS-1. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. MS-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 STABILIZATION OF ALL SOIL STOCKPILES ON SITE AS WELL AS BORROW AREAS AND SOIL INTENTIONALLY TRANSPORTED FROM THE PROJECT SITE. MS-3. A PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS NOT OTHERWISE PERMANENTLY STABILIZED. PERMANENT VEGETATION SHALL NOT BE CONSIDERED ESTABLISHED UNTIL A GROUND COVER IS ACHIEVED THAT IS UNIFORM, MATURE ENOUGH TO SURVIVE AND WILL INHIBIT EROSION. MS-4. SEDIMENT 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. MS-5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION. MS-6. SEDIMENT TRAPS SHALL BE DESIGNED AND CONSTRUCTED BASED UPON THE TOTAL DRAINAGE AREA TO BE SERVED BY THE TRAP. 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. MS-7. CUT AND FILL SLOPES SHALL BE DESIGNED AND CONSTRUCTED IN A MANNER THAT WILL MINIMIZE EROSION. SLOPES THAT ARE FOUND TO BE ERODING EXCESSIVELY WITHIN ONE YEAR OF PERMANENT STABILIZATION SHALL BE PROVIDED WITH ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM IS CORRECTED. MS-8. CONCENTRATED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL SLOPES UNLESS CONTAINED WITHIN AN ADEQUATE TEMPORARY OR PERMANENT CHANNEL, FLUME OR SLOPE DRAIN STRUCTURE. MS-9. WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER PROTECTION SHALL BE PROVIDED. MS-10. ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING CONSTRUCTION SHALL BE PROTECTED SO THAT SEDIMENT -LADEN WATER CANNOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED TO REMOVE SEDIMENT. MS-11. BEFORE NEWLY CONSTRUCTED STORMWATER 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. MS-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 POSSIBLE DURING CONSTRUCTION. NONERODIBLE MATERIAL SHALL BE USED FOR THE CONSTRUCTION OF CAUSEWAYS AND COFFERDAMS. EARTHEN FILL MAY BE USED FOR THESE STRUCTURES IF ARMORED BY NONERODIBLE COVER MATERIALS. MS-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 NONERODIBLE MATERIAL SHALL BE PROVIDED. MS-14. ALL APPLICABLE FEDERAL, STATE AND LOCAL REGULATIONS PERTAINING TO WORKING IN OR CROSSING LIVE WATERCOURSES SHALL BE MET. MS-15. THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER WORK IN THE WATERCOURSE IS COMPLETED. MS-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. C. EFFLUENT FROM DEWATER]NG OPERATIONS SHALL 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. RESTABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THESE REGULATIONS. F. APPLICABLE SAFETY REGULATIONS SHALL BE COMPLIED WITH. MS-17. WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED OR PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY VEHICULAR TRACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PAVED OR PUBLIC ROAD SURFACE, THE ROAD SURFACE SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTED TO A SEDIMENT CONTROL 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. MS-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 LOCAL PROGRAM 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. MS- 19. PROPERTIES AND WATERWAYS DOWNSTREAM 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 CRITERIA LISTED IN SECTION 19 OF VIRGINIA ADMINISTRATIVE CODE 9VAC25-840-40 MINIMUM STANDARDS. GENERAL EROSION AND SEDIMENT CONTROL NOTES: ES-1: UNLESS OTHERWISE INDICATED, CONSTRUCT AND MAINTAIN ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE LATEST EDITION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. ES-2: THE CONTROLLING EROSION AND SEDIMENT CONTROL AUTHORITY WILL MAKE A CONTINUING REVIEW AND EVALUATION OF THE METHODS AND EFFECTIVENESS OF THE EROSION CONTROL PLAN. 0 ES-3: PLACE ALL EROSION AND SEDIMENT CONTROL MEASURES PRIOR TO OR AS THE FIRST STEP IN CLEARING, GRADING, OR LAND DISTURBANCE. Wre1y ES-4: MAINTAIN A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN 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, OFFSITE BORROW OR WASTE AREA), SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE ARCHITECT/ENGINEER AND THE CONTROLLING EROSION AND SEDIMENT CONTROL AUTHORITY FOR REVIEW AND ACCEPTANCE. ES-6: PROVIDE ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE RESPONSIBLE LAND DISTURBER. (MODIFIED NOTE) ES-7: ALL DISTURBED AREAS SHALL DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND -DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT. ES-8: DURING DEWATERING OPERATIONS, PUMP WATER INTO AN APPROVED FILTERING DEVICE. ES-9: INSPECT ALL EROSION CONTROL MEASURES DAILY AND AFTER EACH RUNOFF- PRODUCING RAINFALL EVENT. MAKE ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES IMMEDIATELY. SOILS INFORMATION: 21 B - CULPEPPER FINE SANDY LOAM, 2 TO 7 PERCENT SLOPES. 40 TO 79 INCHES TO RESTRICTIVE FEATURES, WELL DRAINED, HYDROLOGIC SOIL GROUP: B 21C - CULPEPPER FINE SANDY LOAM, 7 TO 15 PERCENT SLOPES. 40 TO 79 INCHES TO RESTRICTIVE FEATURES, WELL DRAINED, HYDROLOGIC SOIL GROUP: B 65B - FAIRVIEW SANDY LOAM, 2 TO 7 PERCENT SLOPES. MORE THAN 80 INCHES TO RESTRICTIVE FEATURES, WELL DRAINED, HYDROLOGIC SOIL GROUP: B 65C - FAIRVIEW SANDY LOAM, 7 TO 15 PERCENT SLOPES. MORE THAN 80 INCHES TO RESTRICTIVE FEATURES, WELL DRAINED, HYDROLOGIC SOIL GROUP: B 88 - UDORTHENTS, LOAMY, 2 TO25 PERCENT SLOPES. MORE THAN 80 INCHES TO RESTRICTIVE FEATURES, HYDROLOGIC SOIL GROUP: D 94C - TOAST SANDY LOAM, 7 TO 15 PERCENT SLOPES. MORE THAN 80 INCHES TO RESTRICTIVE FEATURES, HYDROLOGIC SOIL GROUP: B TABLE 3.31-B ACCEPTABLE TEMPORARY SEEDING PLANT MATERIALS "QUICK REFERENCE FOR ALL REGIONS" PLANTING DATES SPECIES RATE (LBS./ACRE) SEPT. 1 - FEB. 15 50/50 MIX OF ANNUAL RYEGRASS (LOLIUM MULTI-FLORUM) & 50-100 CEREAL (WINTER) RYE (SECALE CEREALE) FEB. 16 - APR. 30 ANNUAL RYEGRASS 60-100 (LOLIUM MULTI-FLORUM) MAY 1 -AUG. 31 GERMAN MILLET 50 (SETARIA ITALICA) TEMPORARY SEEDING PLANT MATERIALS No Scale TABLE 3.32-C SITE SPECIFIC SEEDING MIXTURES FOR APPALACHIAN/MOUNTAIN AREA TOTAL LBS. PER ACRE MINIMUM CARE LAWN COMMERCIAL OR RESIDENTIAL 200-250 LBS. KENTUCKY 31 OR TURF -TYPE TALL FESCUE 90-100% IMPROVED PERENNIAL RYEGRASS * 0-10% KENTUCKY BLUEGRASS 0-10% HIGH -MAINTENANCE LAWN MINIMUM OF THREE (3) UP TO FIVE (5) VARIETIES OF BLUEGRASS FROM APPROVED LIST FOR USE IN VIRGINIA. 125 LBS. GENERAL SLOPE (3:1 OR LESS KENTUCKY 31 FESCUE 128 LBS. RED TOP GRASS 2 LBS. SEASONAL NURSE CROP ** 20 LBS. 150 LBS. LOW -MAINTENANCE SLOPE (STEEPER THAN 3:1) KENTUCKY 31 FESCUE 108 LBS. RED TOP GRASS 2 LBS. SEASONAL NURSE CROP ** 20 LBS. CROWNVETCH *** 20 LBS. 150 LBS * PERENNIAL RYEGRASS WILL GERMINATE FASTER AND AT LOWER SOIL TEMPERATURES THAN FESCUE, THEREBY PROVIDING COVER AND EROSION RESISTANCE FOR SEEDBED. ** USE SEASONAL NURSE CROP IN ACCORDANCE WITH SEEDING DATES AS STATED BELOW: MARCH, APRIL THROUGH MAY 15TH .............................. ANNUAL RYE MAY 16TH THROUGH AUGUST 15TH......................... FOXTAIL MILLET AUGUST 16TH THROUGH SEPTEMBER, OCTOBER...... ANNUAL RYE NOVEMBER THROUGH FEBRUARY................................. WINTER RYE *** IF FLATPEA IS USED, INCREASE TO 30 LBS./ACRE. ALL LEGUME SEED MUST BE PROPERLY INOCULATED. WEEPING LLVEGRASS MAY ALSO BE INCLUDED IN ANY SLOPE OR LOW -MAINTENANCE MIXTURE DURING WARMER SEEDING PERIODS; ADD 10-20 LBS./ACRE IN MIXES. Y � Bryan D. Cichocld Lie. Na 53741 /3lzf m E 0 N U N C ¢ o > E w °1 E W i Q LL a.2 3 01 O . ¢<J U0� W J -N N WN N v + v 3 x in U> m C(31 S N N � M v W J am O oc H z O a u V Lu w 0 z O w F DATE 0511012021 DRAWN BY KR DESIGNED BY KR CHECKED BY BC SCALE AS SHOWN V / J O Q < Z_ �"w C) z � J o w U Uwo <z L.L m __J Q Q O J O o U 5� o z O w 2 C U (�mw p a } Q W o Q pC w Z Q O Q ^ ,H L V I w 0 W Q CO w J JOB NO. 44695.00 SHEET NO. C3.0 EO PERMANENT SEEDING MIX FOR PIEDMONT AREA No Scale PIPE OUTLET CONDITIONS ' OF 1. SET THE STAKES. 2. EXCAVATE A 4"X 4" TRENCH UPSLOPE ALONG THE LINE OF STAKES. A A ✓� F---i 0, Bryan D. ClChoc)a 'z � Lie. Na 53741 � �'SgIONALGti FLOW 3do do 4 W(/ 3. STAPLE FILTER MATERIAL TO STAKES AND 4. BACKFILL AND COMPACT THE PIPE OUTLET TO FLAT EXTEND IT INTO THE TRENCH. EXCAVATED SOIL. AREA WITH NO PLAN VIEW DEFINED CHANNEL o E o N � N C >E i i " La LL a E 3 WII UI F- w FLOW u 0%_ ¢ LL o pLL _ _ a u SHEET FLOW INSTALLATION I o z OLu (PERSPECTIVE VIEW) ; o N SECTION A -A FILTER KEY IN 6"-9"; RECOMMENDED z w 3' CLOTH FOR ENTIRE PERIMETER N X u FLOW MAX. 9 w W �� Z Z A B A \�� A o _ ^o >� 0� — — a u a �yx \ A 3do (MIN.) m � j POINTS A SHOULD BE HIGHER THAN POINT B. do W J m PIPE OUTLET TO DRAINAGEWAY INSTALLATION WELL DEFINED vi (FRONT ELEVATION) HANNEL PLAN VIEW C� ce Z) 0 SF 3.05-2 x D 0 SILT FENCE (W/O WIRE SUPPORT) La F C1 No Scale rq w W N O O%_ 2 Q M M111111 Q 1. SET POSTS AND EXCAVATE A 4"X4" 2. STAPLE WIRE FENCING TO r""— Id SECTION A -A 0 in o TRENCH UPSLOPE ALONG THE LINE OF THE POSTS. FILTER KEY IN 6"-9"; RECOMMENDED DATE POSTS. 6 CLOTH FOR ENTIRE PERIMETER oc 05/10/2021 MAX o DRAWN BY NOTES: 1. APRON LINING MAY BE RIPRAP, GROUTED RIPRAP, GABION BASKET, OR CONCRETE. KR DESIGNED BY FLOW 2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED USING PLATES 3.18-3 AND 3.18-4. • 1, 3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT LESS THAN 6 •4" KR INCHES. • CHECKED BY 3. ATTACH THE FILTER FABRIC TO BACKFILL AND COMPACT THE OP 3.18-1 : • BC SCALE 4. OUTLET PROTECTION THE WIRE THE TRENCH.FENCE AND EXTEND IT INTO EXCAVATED SOIL. • AS SHOWN No Scale • IIF FLOW GG DGNLJ' Hol U U U O EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. STANDARD ORANGE VINYL OR PLASTIC CONSTRUCTION Q O z I --I FENCE ATTACHED TO POSTS (PRE -WEATHERED WOOD, FILTER FABRIC GALVANIZED STEEL, IRON OR THICK PVC PLASTIC), AT LEAST ( w 40" ABOVE FINISH GRADE WITH SPAN BETWEEN POSTS NO GREATERTHAN 6' ON CENTER. EVERY NINTH POST SHALL - Q III —III WIRE I I I I=III —III- = A WARNING SIGN THAT CLEARLY IDENTIFIES THE 0-6GREATER III =11= FENCE AS A TREE PROTECTION FENCE. z SF 3.05-1 TP NO SCALE 3.38 0 5 O (n W j u SILT FENCE (WITH WIRE SUPPORT) TREE PROTECTION U -1 O No Scale No Scale Q 2!LL �/ m J a Q J O ERNST CONSERVATION SEEDS J ' 7o' MIN. 51 EXISTING RIGHT-OF-WAY NON-NATIVE WOODS MIX - ERNMX-132 U D Z A PAVEMENT Q O B„ M BOTANICAL NAME COMMON NAME `� U FILTER A MOUNTABLE BERM PRICE/LB CLOTH (OPTIONAL) SIDE ELEVATION O 30.00% FESTUCA RUBRA CREEPING RED FESCUE 1.90 O z EXISTING GROUND O w 20.00% LOLIUM PERENNE, PERENNIAL RYEGRASS, 1.85 = 70' MIN. r 'FASTBALL RGL' 'FASTBALL RGL' U) WASHRACK T 10, MIN. B (TURF TYPE) Q OPTIONAL j_ _U - w y 10 EXISTING 12' MIN. MIN PAVEMENT 20.00% PHLEUM PRA TENSE, TIMOTHY, CLIMAX' 1.20 'CLIMAX' m = a 'IN VDOT#1 COARSE AGGREGATE B I POSITIVE j 10. MIN. �DRAINAGETO L 12.00% TRIFOLIUM HYBRIDUM ALSIKE CLOVER 3.25 � 7Z L `MUST EXTEND FULL WIDTH OF SEDIMENT INGRESS AND EGRESS OPERATION 10.00% AGROSTIS PERENNANS, AUTUMN BENTGRASS, 14.00 J O U Q TRAPPING DEVICE ALBANYPINE BUSH- ALBANY PINE BUSH - Lu PLAN VIEW NYECOTYPE NY ECOTYPE 0 12' MIN. 3" MIN. 8.00% AGROSTIS ALBA REDTOP 8.00 w O 3" MIN. 100% MIX PRICE/LB BULK: $3.61 UJ Q FILTER CLOTH SECTION A -A SEEDING RATE: 40-60 LB PER ACRE CO W WOODLAND OPENINGS J B �" THE SHADE -TOLERANT GRASSES AND CLOVER ARE GOOD FOR «. ; WOODLAND OPENINGS AND PARTIALLY SHADED SITES. MIX *DRAINSPACE FORMULATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE DEPENDING ON THE AVAILABILITY OF EXISTING AND NEW PRODUCTS. WHILE THE REINFORCED CONCRETE FORMULA MAY CHANGE, THE GUIDING PHILOSOPHY AND FUNCTION OF — SECTION B-B THE MIX WILL NOT. ]0B NO. cE 3.oz 44695.005 SHEET NO. STONE CONSTRUCTION ENTRANCE SLOPE STABILIZATION SEED MIX C3.1 No Scale No Scale MHS TOP=56754' INV. 1N=559.06' 8" PVC (SW, SCH.) INV. 1N=558.94' (SE) �y INV. OUT=558.86' 8" PVC i —W— l S -563- WATERLINE PER _ \ - - _ - _ _ - - _�" - • — \ F/� 's6�. \ \ ACSA MAPPING / / - \ - ' Tl MAPL SF .570— ATTACH: VAR. HARDWOODS >6" IGI­ UG "Plia6_ ZPsb ` ` /l TVELCOMG7IGN.'CONTRACTOR TO PROVIDE`� I I vauLr \ \ 'GY�DhENTR' GRAVEL WASH RACK WITH `\ \ _` \ F-2327` \ `\ \ \ TS 4 2 POPLAR _ � - bVK85 - WATER SOURCE - - \ 24 I�4R\-I`'POLEJ R/ \ \ \ \ - \ 6$TE P05T �� \ \ SIGN \ \ \ \ \ - .B/1�SES ONLY' I /~ \ < �\ y \ \ \ \ IR `\ `\ \�\ J/ yc/` _ ^ \ / \ 'rjlRN 14 U GATE POST ` - - I ANE' / W as "OA/ _ � _ � --SIGN 28"OAK\ `\ \ SF \ \I -- - - -- l I \`nlarResPAss- eeivE 4.1� I CABINET/ 18"MAPLE RACK-_gl _573 \ ASr DC A4/ - � l l \ TS _ lSL/ OUT=5fi0.9 8"AIA _ - ' - _ / / _ -574- \ _ _-573-_ _- -_---_ - - -/ / / - ---- \ - RE'TAL ------ -- - - -- _----- - METAL / - ,fT x\57' RAMPW/�A \ \ \ \ v / / l / / / ♦ 1� ( METAL RAMP / / / / ' / ♦� / I \ W/RAIL 576- - \ LIMITS OF DISTURBANCE = 0.78 AC TP D 3"MA ~ a / 2 v�i w 3 D `\ I\ (D 55' MAPLE j 12" OAK ' / l / EX. 1 LEVEL � I MODULAR CLASSROOM MAI )- \ (I) BUILDING CONC. V) \ - O l co I cl 1 1 REFe� PAD I 1 TSg ` / \ (PART OF) TMP 68-78A ` I l \\ \\ \ \\ \\wa m METAL COUNTY OFALBEMARLE EDGE OF FIELD AND \ e LANDING EXISTING GOAL (TYP.) DB. 287, PG. 414 / SCHOOL BOARD ♦ \ \ \ \ � \ \ \ � . W/CANOPY \ (��� , _ \ ZONED: RA (RURAL AREAS)—�''—ACSA MAPPING PER EROSION CONTROL LEGEND r_ LIMITS OF CLEARING AND GRADING SOIL AREA DIVIDE C E CONSTRUCTION ENTRANCE 3.02 SF SILT FENCE 3.05 SUPER SILT FENCE 3.05 TS TEMPORARY SEEDING 3.31 PS PERMANENT SEEDING 3.32 M U MULCHING 3.35 TP Tp TREE PROTECTION FENCE 3.38 DC DUST CONTROL 3.39 * "VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK" SPECIFICATION NUMBER P� —58 BEN. AL RAMP P`$ CO \/RAIL / 6V_ON jWA/C NC SWk h HANG �e l (AOTNOOR) tW/SQ lNcp 6T*AG< (A\4PH. RAM W ----® TOR C oAlc (W/ST DRL DOOR / R40G / / ♦ \ \ \ 1 CONC. ICY L=6.0' Sk W APRON THRESH=580.71' ` ROLL DOOR BENbHMARK \ \ CONC. L=18.0' h/ G kAIL SET 1 I (B(DZ/NE) / IN )NTED A' ` EL 1=580.25' I / /4,, W EX. 1 LEVEL 0 BLOCK SCHOOL FACILITY z (RAISED CLEARANCE) / / / y16 / / / / / ♦ / / ALBEMARLE HIGH SCHOOL' 2715 HYDRAULIC RD. ` / / v SCALE 1 "=20' / 0 2 40, Y � Bryan D. Cichodd Lie. Na 53741 /3lzf Wre 1y m E 0 N U N c > E w ai E W Q L6 O 3 ¢aw U0� J - ui N W N N v 4�'�-'� 3 x V) C 04 c U > M cON ON S N M v W J H ui 0 O 2 C7 d H Lu w Lu 2 Q z O 0 am O oc z 0 a u Lu w 0 z O w DATE 0511012021 DRAWN BY KR DESIGNED BY KR CHECKED BY BC SCALE 1"=20' V / O I� O z Lu Q U) a z I J ° Q UJa Q J w O m J Q O U OC)z Jp W O ' (j) C) U ,W,^ V m / = a C) LuzQ J oC�o < Q V / � O W m Lu Q W co Q IOB NO. 695.0 SHEET NO. C3.2 s U MHS TOP=56754' INV. IN=559.06'8"PVC (SW, SCH.) INV. IN=558.94' (SE) INV. OUT=558.86' 8"PVC �w—� S i ,W � �w 1 \ IV WA TERL INE PER � bG'`rb' \ � � ACSA MAPPING / R M LOPE PoKS��\\\ MAPL T SF -570- ATTACH: \\ \ \ SSF VAR. HARDWOODS >6" CE / —OGT \ SPA PLE \\ \\ T / \ \ TP ,I I ssi\ \� v TELCOM / \UGT 5/GN• I CONTRACTOR TO PROVIDE 5j> ' I I \ \ / \ VAULT , \ GY*ENTR.' GRAVEL WASH RACK WITH \ 2 POPLAR _ _ \ \ �95\ `I \/ WATER SOURCE \ , 2a" L9R\ \ hoLEJ \ \ \ \ 6QTE POST \ \ (POWER \ \ ` SIGN: 1#10, ITEM1 ^ \S ^ -BL/$ES ONL Y' SIGN ` \ J�IRN \ GATE POST \-- 1 LANE' I / 2` _ �O`-SIGN: I \ 28"OAK\ / �\ SF \ \ `------_/' / I / NaTR€SPA3S'- / I SANS- SAN s a RT;ls 1 I 12"OAK O / \ CABINET/ \S%- — 18"MAPLE1 I \ f7AfJC- - \ L.^ '/ �Lam) / I I--573---- I \ / - - -INl! "-56B. 38^8" VC \ \ �f .aV.. OUT=569.12'8 "P1C_-574 % - - - - - - _ -tANDINQ / 400I II 1 _ ' - - - - - -- _ _ =82'x 5.7'- _ METAL / / II _ _ LA4XDING 6751 i _ ,�•3 / / fig/ 5/g_ l7'A\5.7' y / �v \ `\ METAL RAMP / W/RAIL 576- - ` LIMITS OF DISTURBANCE = 0.78 AC / ` // / / / �' / I i \\ \ rx MA AD - 10 ' tie °w I Q o \\\\ L I 3.. ® \ TP 55' MAPLE D I l EX. 1 LEVEL ?uQ�sS•( I I I I �'IpY m l MODULAR CLASSROOM MA/LBO)(J \ BUILDING conc. CO\ , _ 00 CO/� v `s I % REF IE PAD \ \ \ l 1 ` 1 (PART OF) TMP 60-78A COUNTY OFALBEMARLE EDGEOFFIELDAND \ \ \ \fie METANAL SCHOOL BOARD EXISTING GOAL (TYP.) \ \ \ \ DB. 287, PG. 414 \ \ \ ~" \ ' wr cANoar ZONED: RA (RURAL AREAS) \ \ \ - _ - - / y�9 — — \ _ - — \ 8"WATERLINE PER ACSA MAPPING \ \ EROSION CONTROL LEGEND LIMITS OF CLEARING AND GRADING SOIL AREA DIVIDE CE CONSTRUCTION ENTRANCE 3.02 SF X X— SILT FENCE 3.05 SSF X SUPER SILT FENCE 3.05 TS TEMPORARY SEEDING 3.31 PS PERMANENT SEEDING 3.32 M U MULCHING 3.35 TP Tp TREE PROTECTION FENCE 3.38 DC DUST CONTROL 3.39 * "VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK" SPECIFICATION NUMBER \ _ __ / —5 _ - - - - - - - -� / SPNPLT VEN & pE \ w — / / 1 L RAMP i P CO,VC CONC sIy _ h1q Q2 \ 1 \ 1 /RAIL FiQ / CONC. CONCwALL HA RA �W (AT DOOR) lw/Sr0 �6j BLDG R CONC K/ \ ON DBL. DOOR s OSl B DGOR / i \ \ \ \ 1 CONC. 'Cl' L=6.0' s/f/OSl N / APRON THRESH=580,71' 580.61'-' ROLL DOOR / \ BENCHMAR\ CONC. L=18.0' K he G FAIL SET I (B(OL'NEJ / IN )NTED A' I I EL-580.25, / W It EX. 1 LEVEL e / k BLOCK SCHOOL FACILITY (RAISED CLEARANCE) ALBEMARLE HIGH SCHOOL' 2775 HYDRAULIC RD. SCALE 1"=20' 0 20' 40' Bryan D. Cichodd Lie. Na 53741 /3lzf Wre 9y �'�NiiiH m E 0 N U N c > E °1 E w W Q LL3 LL .2 �\ w O m ol L M J U m aW Z w N —N c o V) NN a H W B r+f .� ¢ L. Q 4 i � w LL c a t n V a L9 cm v S N M LL a v W J oN[ 0 O x c� d H Lu W W F � Q O 0 0 O DATE 0511012021 DRAWN BY KR DESIGNED BY KR CHECKED BY BC SCALE 1"=20' V / 0< 0. Q Jz o Z U U Qcl� a J w O m J Q Z u z Q u �U 0C� 0z o Lu O ' u H� U 0 m = a Q }z W~ zQ J O ../Uz LL W p ct� 1-4< Q coO w co W 1 1M1 a Lu W ]OB NO. 44695.00 SHEET NO. C3.3 0 c 3 s N c 0 0 0 a APPROX. LOCATION OF EXISTING FHA i —W� l \ �W 1 \ \W \ WATERLINE PER -ACSA MAPPING / iW— NF VAR... HAARDWOO(spvvODS >6" ROCKARMOR/ SLOPE PROTECT. RAMP WITH HANDRAILS (TYP.). DESIGN BY OTHERS. \GT (POWERPOLE) 3"MAPLE \ NO AERIAL ATTACK \\ \GG'T 3 \ \ \UGT FP 15, �\ _ UGT C / \ >\N s' 64' / 124\ MODULAR CLASSROOM FFE: 575.15' (PART OF) TMP 60-78A COUNTY OFALBEMARLE SCHOOL BOARD DB. 287, PG. 414 ZONED: RA (RURAL AREAS) 00,00 • 6' RAISED AND SLOPED WALKWAY WITH HANDRAILS (DESIGNED BY OTHERS)- 1 SR LF 1 1/2" HDPE IPS R11 (200 PSI) WA R SERVICE EDGE OF FIELD AND EXISTING GOAL (TYP.) 3" MAPLE 'd C�1�7GV[�1�11 24"POPPLL^AR red �224""POPLAR SAN so SANip SEWER LATERAL / SEE NOTE MAINT 1.5' VE CLEARANCE( .)AT he —W / —UGT -� / TELCOM / VAULT I WK85 I(POWER/ GATEPOST-, POLE) P 41E �eO EXISTING MANHOLE VIA SIGN: FIRE INT�RNAL DROP CONNECTION. SEE LANE' PETIL ON SHEET C1.0. 28�" OAOAK IPOWER 7Q'C I CAC/NET/ RACK 18"MAPLE S© Q -MHS TOP=570.60' INV. IN=560.38' 8" PVC INV. OUT=560.12' 8" PVC METAL LANDING 82'x57' EX. I LEVEL MODULAR CLASSROOM BUILDING 1 / EXISTING SWALE TO / BE MODIFIED AND REROUTED UQ METAL LANDING - / 8.3'x 53' W/CANOPY BENCHMARK f�G NAIL SET V INTED A' 1" WATER METER IN ACCORDANCE WITH ACSA GENERAL CONSTRUCTION SPECIFIqATIONS STANDARDS. COORDINATED RElUIRED INSPECTIONS WITH ACO BEFORE BEGINNING / CONSTRUCTION. F AL RAMP WI RAIL AW� i CONC. APRON t 580.61, CONC. I METAL LANDING 5.7'x 57' M� A�WiRy/L EXISTING FHA R 55MAPLE � W 2 MAILBOX GONG. Q i UGT SIGN: GYM ENTR.' METAL RAMP W/RAIL CONC. REFUSE PAD _ PA1H EP PNA�t BEN. BUSES ONLY' � GATE POST U �� SIGN: 1 NO TRESPASS' NOTES: 1. WATER SERVICE LINE TO BE 1 1/2" HDPE IPS DR11 (200 PSI) SHALL BE MANUFACTURED FROM A PE 3408 RESIN LISTED WITH THE PLASTIC PIPE INSTITUTE (PPI) AS TR-4. THE RESIN MATERIAL WILL MEET THE SPECIFICATIONS OF ASTM D3350-02 WITH A CELL CLASSIFICATION OF PE 345464C. PIPE SHALL HAVE A MANUFACTURING STANDARD OF ASTM D2737 (COPPER TUBING SIZE), ASTM D2239 (IRON PIPE SIZE, CONTROLLED INSIDE DIAMETER) AND ASTM D3035 (IRON PIPE SIZE, CONTROLLED OUTSIDE DIAMETER). THE PIPE SHALL CONTAIN NO RECYCLED COMPOUNDS EXCEPT THAT GENERATED IN THE MANUFACTURER'S OWN PLANT FROM RESIN OF THE SAME SPECIFICATION FROM THE SAME RAW MATERIALS. ALL PIPES SHALL BE SUITABLE FOR USE AS PRESSURE CONDUTIS, AND PER AWWA C901, HAVE NOMINAL BURST VALUES OF THREE TIMES THE WORKING PRESSURE RATING (WPR) OF THE PIPE. PIPE SHALL ALSO HAVE THE FOLLOWING AGENCY LISTINGS OF NSF 14 AND NSF 61. 2. SEWER LATERAL SHALL HAVE 36" MIN. COVER, A MIN. SLOPE OF 1.04% AND BE 4" SCHEDULE 40 PVC IN ACCORDANCE WITH SPECIFICATION ON PLUMBING PLANS. 12" OOAK U1 D O D 73 m c / O O / / / / / / 8" WA TERLNE PER MAP / �W �ACSA MAPPING L —w� AS CpNC w o67WA44 CONC 3� Wir a GONG COMO (AT DOOR) O h Coll C' WA44 B(pG R SK/Og�pN C pNC (W/gTp - DSL. DOOR 'Ci' L=6.0' B(pG R SK/OS�ON THRESH=580.71 ROLL DOOR L=18.0' - TIE METER TO EXISTING 8" WATER MAIN IN ACCORDANCE WITH ACSA GENERAL CONSTRUCTION SPECIFICATIONS STANDARDS. SIZE AND DEPTH OF LINE TO BE FIELD VERIFIED PRIOR TO CONSTRUCTION. EX. I LEVEL BLOCKSCHOOL FACILITY (RAISED CLEARANCE) ALBEMARLE HIGH SCHOOL' 2775 HYDRAULIC RD. SCALE V=20' FM 0 zo' 40' LEGEND: LIGHT DUTY ASPHALT NOTE: COORDINATE FINAL SEWER AND WATER ROUTING, SIZING, AND CONNECTION TO EXISTING FACILITIES WITH MEP ENGINEER PRIOR TO BEGINNING CONSTRUCTION. ALL PROPOSED UTILITIES TO BE CONSTRUCTED TO ACSA STANDARDS. Y � Bryan D. Cichodd Lie. Na 53741 /3lzf Wre 1y m E 0 N N 'A > E w °1 E W > Q LL o 3 oLLx� w O y Qa J U OD N W N N v z B v �3 x 9�� in = c 7 U04 01 01 N M W J Z O a V U) W 0 Z O W F DATE 0511012021 DRAWN BY KR DESIGNED BY KR CHECKED BY BC SCALE 1"=20' ]0B No. 695.0 SHEET NO. C4.0 0 0 a 0 c ga o $O �Z 20 o �2 m w E 0 a �N m a0 O a'T O 3 ZoZ m � a F H o� 0 3 .N Y X C do ot '5_ 2� 0 = !A U c o 0 a w 'c 1O a 0 m o m m a m m o � 0 m s. E � E MHS TOP=56754' INV. IN=559.06' 8" PVC (SW, SCH) INV. IN=558.94' (SE) INV. OUT=558.86' 8" PVC i�—W_� S� 'W \ - - \ l7. WATERLINE PER 'S SS. \ \ \ _ACSA MAPPING - - - —565� - - - - - _ \ �s� \W _ /W / / ROCKARMOR/ WK5� \3" MAPLE / / SLOPE PROTECT. (POWER POLE) \ \ \ \ \ I Q I NO VAR. HARDWOODS >6"�570- ALL DOS OUTS ON THIS SID b1f \ \ sy�/ THE OF THI= ING SHALL B I / a / 572.95' ` PIPED bNDER TR41ERS ABOV I g, GRADE B`i\PLUMBEr LIILET T 56 LEVE� LANDING 1511 \ \ \ IN, "DITCH ON THEOTHERSIDE OF-11* BUILeINO (TYP.) \ \ \I \OGr� \ 1 I u^J 15LFRAMP @8.33%MAX J / I 571.70p 571.78' \ \ \ \ 3'MsLPLE` \ ` / / I^ S6. \ \ \ \ —U�T -� TELCOM \ \ ' � 5.15' 28 LF RA1MP @ Si7 \ \ \ \ r \ \ \ / / II I \ \ \ \ \ \ / VAULT / / \ �UGr \ \ -or IYb'ENTR ` o py/ \ O \ \ \ F-2327\ \ 8.33 k IN \ 244' POP((LLA�AR I _ _ \ I WK85 \I 1T WIDE BY 6' LONG FFE=575.15' /\1 \ \ �"tl�S - 24"POPL44R\ �I POWER/ ` ` \ \ \ GATEPOST \ \ SIGN: LEVEEE SPREADER \ ` - - P� \ - �s7\ - - -BL/�SES ONL Y' I \ � 1.8% ROSS "'((( \ . . 5 �IGN.1 `''T \ I \ SL E (TYP.) - - - ` c% - - . \ �/ \ 'yIREI \ GATEPOST FILL TO _�\l/I -572� c� 571.06' / I / 28�"CO�A,K\ i l / I '�{ - - - Na TRESPASS'- - SAN 2%MIN. SAN \ \ S \ I BBWER�aS \ - - - - - - - 12"OAK \0 / I / .h SLOPE \ \ RACK- .t\s �S, 18"MAPLE l /I /l /h MODULAR CLASSROOM / % ' -573- - - - %}7 FFE:5i5.15' 57 RS_ 0 -IN�IN_568.388"-eVC -�____-- \ \ - - _ / - / -- --_\\` Ci'�� /LYY�T=5H0.12'8"PVC�\v -574- 1 � \ -573- - / / i \ \ I ' - - - -LANDINQ 1 1 572.27' I / / / �----- _ -`_ `\ METAL / / -L A61DING / 28 LF RAMP / / /10 LF RAM 'l3 40/ ET s7a, ` \ 37'x\5.7' MAX 8.33% MAX Cur J(O 55 / z.9aL OUTLET ALL DOWNSPOUT / / 572132" PIPES TO 2%1' CONCRETE D B / / / yly lr / METAL � 57s- SPLASH BLOCKS (TYP.) 16� II \ w/Ra A FFE=575.15' 575.05' // / ' / ` U) / LEVEL LARDING/ / FILL TO / / / ' I \ ` D 57 . 5' / 11 ^ 3" MA E lc) / Q a h a O \ K3 \ \ \ LG l / l� j / / d I 3" IS v 5.5' MAPLE { \ °f I Il I EX. I LEVEL W / 575.50 I / MODULAR CLASSROOM = MAILBOX \ 1575.5571.04' 1 / BUILDING CONC. \ _ C) / PLL \ I I 576.00' I I I Q CEF EOP% \\ ya J \ / / / 1 �76.52' 576:6 \ PAD / 1 \ \ 1 1 �577.45' m / / \ \ 577.35' (PART OF) TMP 60-78A l \ \\ \ \ DITCH A METAL COUNTY OF ALBEMARLE EDGE OF FIELD AND \ \ \ = 78.0 LANDING SCHOOL BOARD EXISTING GOAL (TYP.) \ w \ \ _ 8.3' x 5.3' \ \ DB. 287, PG. 414 \ \ \ Lo \ \ W/CANOPY ZONED: RA (RURAL AREAS) 8"WATERL/NEPER \ /ACSA MAPPING / 577.97' AjNmow— L 80 \ - - / ETAL RAMP ^ i PSP CONC CONC S w/RAIL ` / w os��at� 1°k a CONC. OONO NC h HA RA IL 1w (AT DOOR) /WjSI-O !N<v67'WA[( CONQ OVIS DBL. DOOR SK/OS�ON BLDG ON CONC. 'Cl' L=6.0' S/r/DSO APRON THRESH=580.71' / \ JEXE580.07 580.61'Jt ROLL DOOR BENbHMARK \ \ CONC. L=18.0' l G AIAIL SET /NE IN %NTED A' I I % / EL 1=580.25' / V / tul1 EX. I LEVEL BLOCKSCHOOL FACILITY / �! , / , / / / / / (RAISED CLEARANCE) ALBEMARLE HIGH SCHOOL' 2775 HYDRAULIC RD. M W 0 z z SCALE 1"=20' ti 0 20' 40' Bryan D. Cichoclu Lie. No. 53741 G/3/zf M E O U N � N = > E a E w LL o 3 p LL wo `mom j V oMo w�-� z O w rn W d LLI C7 wm 3:oV�)x v �F pz U)i =ry >� z O .U. Ln V = un E w w j W M � 00 u? - O x C7 0 p � w N F N a M 0 z O O VJ DATE 0 0511012021 } DRAWN BY KR • DESIGNED BY • KR • CHECKED BY BC • • SCALE 1"=20' V / Oz � (D V 1 > QQ) J O Q Uw Lu Q w coLLJ J Q az U Q 0 C) pro 2 O Q O u lJ rn u z V / J F-4 m W O (3 w Q� Q w m W Q co JOB NO. 44695.005 SHEET NO. C5.0 \ am \UGr� \ Z SAN A --573- �T OTAL AREA A - - - �' S72 - -- - _ _ - - - _ JMPCd2vro AR t 2 AC - /A�E�L; �74-/101 -576- - ` r /to - / DRAINAGE AREA TO DITCH B/LEVEL SPREADER. /I / TOTAL AREA = 0.72 AC 1 / IMPERVIOUS PERVIOUS AREA = 0.29 AC / 4 I C = 0.68 EDGE OF \ \ M) FIELD AND \\ EXISTING GOAL (TYP.) , \ / POST -DEVELOPED CONDI *LEVEL SPREADER TIMBER LENGTH (L) CALCULATIONS PER VIRGINIA DEQ STORMWATER DESIGN SPECIFICATION No. 2: L = 13 LF x Q(1 INCH) CFS INFLOW (1 INCH STORM EVENT USED) L = 13 LF X 0.73 CFS = 9.49'= *13' *MINIMMUM LEVEL SPREADER LENGTH = 13' AS NOTED ON PLAN PIPE OUTFALL VDOT STD. No. 1 BROWN STONE RIP RAP, 2"-4" IN SIZE FILTER FABRIC FULL LENGTH 6"X6" TOP TIMBERWOOD (TYP.) 7- MIN. T BACK INTO GRADE. BOTTOM TIMBER TO BE FULL LENGTH 6" MIN. (2) 6"X6" WOOD TIMBER - 18" LONG #4 EPDXY COATED REBAR LEVEL WITH EXISTING OR PROPOSED GRADE MAINTENANCE NOTE: INSPECTIONS SHALL TAKE PLACE ANNUALLY, IDEALLY DURING THE NON -GROWING SEASON. SEDIMENTS SHOULD BE CLEANED OUT OF THE LEVEL SPREADER FOREBAYS AND FLOW SPUTTERS. PIPE OUTFALL 18" LONG #4 EPDXY COATED REBAR (TYP.) OT STD. No. 1 OWN STONE RIP P, 2"-4" IN SIZE MODIFIED CN METHOD (per DEQ 2013 draft SWM handbook section 11. 5.3) RAINFALL INCHES -P= 1 INCH from TR-55 table 4-11 Runoff Coefficients IRv) Hydrologic Soil Type A B C D sorest/Open Space 0.02 0.03 D.Q4 D.DS managed Turf 0.15 0.20 D.22 D.25 mpervious Cover 0.95 0.95 0.95 D.95 DRAINAGEAREAAND INLET LABEL IMPERVIOUS AREA (AC) Soil Type MANAGEDTURF AREA (At) MANAGED TURF RV FOREST/OPEN SPACE (PC) FOREST/OPEN RV TOTAL AREA (PC) RV Tv-1' VDWME(CF) Qa-RUNOFFVOL. (WATERSHED INCHES) MODIFIED [N la -INITIAL ABSTRACTIOPI la/P Tc Ihours) qu- UNITPEPR DISCHARGE (am/In) gpTv-I"Treatment Volume Peak Discharge ANS-Tolevolvsmader 1 0.43 1 R I D29 I DJ I D I n.03 I n.]J 1 0.95 1 I6 5640. 1 9625 I O.D]0. I n. 379 1 D.15 I Inns 0.71 RATIONAL METHOD 1YR RAI N FALL I NTENSITY= 4.22 IN/HR 2YR RAINFALL INTENSITY= 5.04 IN/HR IOYR RAINFALL INTENSITY= 6.64 IN/HR LEVEL SPREADER WEIR COMPUTATIONS 1" 1YR 2YR 10YR Q(CFS) D.T3 2.00 2.39 3.15 WEIR LENGTH 13 13 13 13 WEIR COEFF 3.33 3.33 3.33 3.33 FLOW DEPTH -FT 0..07 0.13 DA4 0.17 Runoff Coefficients IQ Hydrologic Sall Type A B C El Forest/Open Space 0.2D o.zD E22 D.20 Managed Turf 0.3D 0.3D 0.30 D.30 Impervious [over 0.9D 0.90 0.90 D.90 DRAINAGEAREAAND IMPERVIOUS Soil Type MANAGEDTURF NIANAGED FOREST/OPEN FOREST/OPEN TOTAL Average Ojyr Flow Wye Flow Q10yr Flow IN LET LABEL AREA(AC) AREA(AC) TURFRV SPACE(AC) RV AREA(AC) Cvalue (CFS) (CFS( (CFS) DEPTH INCHES 0.79 1.55 1.74 2.09 AH5-To level spre ader 0.43 B D.29 53 D 0,D3 0.72 0.66 2.DO 2.39 1 3.15 LEVEL SPREADER DETAIL AND CALCULATIONS No Scale DRAINAGE AREA TO DITCH = 0.35 AC DRAINAGE AREA TO DITCH = 0.72 AC C= 0.70 C= 0.68 TC= 6 MIN TC= 6 MIN 1(2)= 5.04 IN/HR Q(2) = 0.70(5.04)(0.35) = 1.23 CFS 1(2)= 5.04 IN/HR Q(2) = 0.68(5.04)(0.72) = 2.46 CFS 1(10) = 6.64 IN/HR Q(10) = 0.70(6.64)(0.35) = 1.63 CFS 1(10) = 6.64 IN/HR Q(10) = 0.68(6.64)(0.72) = 3.25 CFS V(2) = 3.29 FT/S (ALLOWABLE VELOCITY = 5 FT/S) V(2) = 2.00 FT/S (ALLOWABLE VELOCITY = 5 FT/S) D(10) = 0.45' D(10) = 0.85' GRASS LINED DITCH 0'S GRASS LINED DITCH 1 00, In= 0.035; SMIN = 3.0% / ^5' In= 0.035; SMIN = 0.5% / SMAx = 6.5% SMAX = 1.0% DITCH CALCULATIONS - DITCH A DITCH CALCULATIONS - DITCH B No Scale No Scale M 00 Q Z SCALE 1 "=30' 0 30' 60' WATER OUANTITY IN THE DEVELOPED CONDITION, THE RUNOFF FROM THE DISTURBED AREA WILL FLOW OFF AS SHEET FLOW. A LEVEL SPREADER IS PROVIDED AT THE POINT OF CONCENTRATED DISCHARGE TO RETURN RUNOFF TO SHEET FLOW. THIS PROJECT FULFILLS THE REQUIREMENTS OF SECTION 9VAC25-970-66 SECTION D. WATER QUALITY ANALYSIS (PHOSPHORUS REDUCTION REQUIRED) SUMMARY FROM RUNOFF REDUCTION SPREADSHEET (SEE SHEET C6.1) TOTAL ON SITE DISTURBED ACREAGE: 0.78 AC PRE -DEVELOPMENT LAND COVER: 0.00 AC FORESTED/OPEN SPACE 0.78 AC MANAGED TURF 0.00 AC IMPERVIOUS POST -DEVELOPMENT LAND COVER: 0.00 AC FORESTED/OPEN SPACE 0.55 AC MANAGED TURF 0.23 AC IMPERVIOUS REQUIRED REMOVAL: THE 0.43 LBS/YR REQUIRED REMOVAL WILL BE SATISFIED BY PURCHASING NUTRIENT CREDITS. TO BE PURCHASE FROM A DEQ APPROVED CREDIT BANK IN ACCORDANCE WITH LIS CODE OF VIRGINIA 62.1-44.15:35. Bryan A CiehDCla Lie. Na 53741 w 9Y am O oc Z 0 r- a Of U Let Z 0 Let Of DATE 0511012021 DRAWN BY KR DESIGNED BY KR CHECKED BY BC SCALE 1"=30' L / 2 O O: I (� I V 1 Q U' I I I CI I OI I I I I I W 21 LU LU I a I coI a IOB NO. 695.0 SHEET NO. C6.0 DEQ Virginia Runoff Reduction Method Re -Development Compliance Spreadsheet -Version 3.0 +� 2011 BMP Standards and Specifications 02013 Draft BMP Standards and Specifications Project Name: Albemarle HS Modular Classroom Addition Date: 5/6/2021 Linear Development Project? No Site Information Post -Development Project (Treatment Volume and Loads) Enter Total Disturbed Area (acres) �.78 Pre -Re Development Land Cover (acres) ASoils Bsoils Csoils Dsoils Totals Forest/open Space (acres) --undisturbed D.aa forest/open sace Managed Turf (acres)-- disturbed, graded for yards or oth er to rf to be 0.64 0.14 0.78 Impervious Carer (acres) 0.00 0.78 Post -Development Land Cover (acres) ASoils BSoils Csoils DSoils Totals Forest/open Space (acres) --undisturbed, 000 mtectedforest ens ace or reforested Managed Turf (acres) --disturbed, graded for yards or other turf to be 0.42 0.1.3 0-55 Impervious Carer (acres) 023 0.22 0.01 Area Check OK. OK. OK. OK. 0.78 Constants Annual Rainfall (i nches) 43 Target Rainfall Event (inches) 1.00 Total Ph asp h onus (TP) EMC(mg/L) 0-26 Total Nitrogen (TN) EMC (mg/Q 1.85 Target TP Load (I b/acre/yr) GAI. Pj (u n itl ess co rre di on factor) 0.90 Runoff Coefficients (Rv) Check BMP Design Specifications List: 2013 Draft Stds & Specs Linearproject? No Land cover areas entered correctly? V/ Total disturbed area entered? r/ A Soils B Soils C soils D Soils Forest/Open Space 0.02 0.03 0.04 0-05 Managed Turf 0.1.5 020 0.22 025 Impe rvious Cover 0.95 0.95 0.95 0-95 Land Caver Summary -Pre Pre-ReDevelopment listed Adjusted' Forest/Open Space Cover(acres) 0.00 0.00 Weighted Rv(f crest) ❑.00 0.00 % Forest 0% 0% Managed Turf Cover (acres) 0.78 0.55 Weighted Rv(turf) 021 0.21 %Managed Turf 100% 100% Impervious Cover (acres) 0.00 0.00 Rv(impervious) 0.95 0.95 %Impervious 05G 0% Total Site Area (acres) 0.78 0.55 Site Rv 021 0.21 Treatment Volume and Nutrient Load Pre-ReDevelopment Treatment Volume (acre ftj 0.0136 0.0057 Pre-ReDevelopment Treatment Volume (mbicfeet) 592 123 Pre-ReDevelopment TP Load (lb/yr) 0.37 0.27 Pre-ReDevetopmentTP Laad per acre (I b/acre/yrj 0.43 0.48 Baseli ne TP Load (I b/yr) (GAL bs/aae/yr a ppl i ed to pre-redevel opment a rea excl udi ng pervious land proposed for new ice pervi ous cover) 0"23 'Adjusted Land CowrSummory: Pre ReDevebpmentland cover minus pervious bnd cover (foresVopm space or managed turf) acreage prapased far new impervious cover. Adjusted total acreage is consistent with Past RefL-velopmen t acreage (minus arrmgeaf new impervious cover) - Column i shows bodreductian requriementfornewimpervbusmver (bored an new development bad limit a4115s/ace/year)" Land Cover Summary -Post (Final) Lord Cove' Summary -Past Land Cover summary -Post Post ReDev. & New Impervious Past-ReDevelopment Post -Development New Impenious Forest/Open Spare Forest/Open Space Cover(acres) 0.00 Cover(acres) 0"� Weighted Rv(forest) 0.00 Weighted Rv(forest) 000 %Forest 0% %Forest 0% Managed Turf Cover Managed Turf Cover (acres) 055 (acres) 055 N ew I mpervi our Cover Weighted Rv (turf) 021 Weighted Rv (turf) 021 %Managed Turf 71% %Managed Turf 100% Impervious Cover ReDev. Impervious (acres) 023 Caver(acres) 0 (acre=) 023 Rvllmpelvlou5) 095 Rv(impervious) 0.95 Rv(impervious) 095 %Impervious 29% %Impervious 0% Total WDev. site Area Final Site Area (acres) 0.78 055 boo lanes) Final Post Dev Site Rv 0.43 ReDevarte Rv 021 Treatment Volume and Nutrient Load Final Post- Post-IeeDevelopment Post -Development Development GLUM Treatment Volume 00097 Treatment Volume ❑.0182 Treatment Volume (acre-ft) (are-ftj (acreftj Final Post- Post-ReDevelopment Post -Development Development 1,216 Treatment Volume 423 Treatment Volume 793 Treatment Vol ume (cubic feet) (cubic feet) (cubic feet) Final Past - Development Dove TP 0.76 � (� D27 Past-Dovellb/yr) TP CL50 Load Load Load (Ib/yrJ (Ib/y�' pb/yr) Past-ReDevelopmentTP m Final Past -Development TP Load per acre 0.98 Load per acre 0.48 (Ib/acre/yr) (b/acre/yrJ TP Load Reduction Required (lb/yr) 1 0.43 Nitrogen Loads (Informational Purposes Only) tax. Reduc ion Requiredl (Below Pre- 10% ReDevelopmerY Load) TP Load Reduction Required for 0.03 Redeveloped Area (lb/yr) Pre-ReDevel opme nt TN Load Final Post -Development TN Load (I b/yr) 2.66 (Pat-ReDevelopment&New 5-47 Impervious) (lb/yr) TP Load Reduction Required for New 0.40 Impervious Area IIb/yr) Bryan D. Cichod lac. No. 53741 ('P/3/2( Wrf IY JIB Z F W Lu w o Z U O v) o_ Wvi of Lu F Q 0 DATE 0511012021 DRAWN BY KR DESIGNED BY KR CHECKED BY BC SCALE N/A U) OQ O� Z V) > V 1 Qz J U Z z U W o J O� I.-, L Q W Qm J Q � U J QU) U O0 LL O O Q U) U m (� �/ / _ o a W Ln J o W J W m WJ Q m J Q JOB NO. 695.0 SHEET NO. C6.1