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HomeMy WebLinkAboutWPO202100029 Plan - VSMP 2021-06-02WESTERN ALBEMARLE HIGH SCHOOL MODULAR CLASSROOM ADDITION AND RENOVATION SITE DATA: TAX MAP PARCEL: 05600-00-00-017CO LIMITS OF DISTURBANCE: 0.55 AC. ZONING: RA SETBACK: 25' FRONT 25' SIDE 35' REAR MAGISTERIAL DISTRICT: WHITE HALL SOURCE TOPOGRAPHY: TIMMONS GROUP, APRIL 2021 DATUM: HORIZONTAL: NAD83 (NA2011) VIRGINIA STATE GRID SOUTH ZONE VERTICAL: NAVD88 ESTABLISHED THROUGH LEICA SMARTNET BUILDING HEIGHT: 18.33' (ADDITION) BUILDING AREA: 7,750 SF PROPOSED USES: MODULAR CLASSROOM ADDITION AND ASSOCIATED SITE WORK WETLAND IMPACTS: NONE WATER SUPPLY: ACSA SANITARY SEWER: EXISTING SEWER SYSTEM DRAINAGE DISTRICT: STOCKTON 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 05/10/2021 King Family Vineyards ' Old Trail Golf Club Ell :w 'P eke Brownsville - _ RoCkfth Gap"'o Yancey MIMS sm L _ Cl © SITE LOCATION Midway t Eon:. 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: JONATHAN SHOWALTER, P.E. TELEPHONE: 434-327-1681 JONATHAN.SHOWALTER@TIMMONS.COM Sheet List Table Sheet Number Sheet Title CO.0 COVER C1.0 NOTES & DETAILS C1.1 NOTES & DETAILS C2.0 EXISTING CONDITIONS & DEMO PLAN C3.0 EROSION & SEDIMENT CONTROL NOTES & DETAILS C3.1 EROSION & SEDIMENT CONTROL NOTES & DETAILS C3.2 EROSION & SEDIMENT CONTROL PLAN - PHASE I C3.3 EROSION & 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 NUMBER OF SHEETS = 12 APPROVED by the Albemarle County Community Development Department Date 6/2/21 A20VAINA SIGNATURE PANEL: DEPARTMENT OF COMMUNITY DEVELOPMENT PLANNING & ZONING ENGINEERING INSPECTIONS ARCHITECTURAL REVIEW BOARD DEPARTMENT OF FIRE AND RESCUE ALBEMARLE COUNTY SERVICE AUTHORITY VIRGINIA DEPARTMENT OF TRANSPORTATION :17_1�ti.D]g9G1:i1LTA lqkill APPROVAL DATE r L LNLTH OF of 0 �c� UN 1TK N. SHOW'ALTER Lie. No. 0402057151 05/10/2021 e+4S.s/rCt 1NAt G:t_ 2 CL O oc H 7- 0 H- a U W O Z O U0 W Ii DATE 05/10/2021 DRAWN BY YT DESIGNED BY AM CHECKED BY JS SCALE AS SHOWN LL J D 0 O U) W .j LL W m J Q z DC LW V 1, ^ 1 W w O U IOB NO. 44695.005 SHEET NO. Co. 0 GENERALNOTES 1. ALL MATERIALS AND CONSTRUCTION METHODS SHALL BE IN ACCORDANCE WITH CURRENT VIRGINIA DEPARTMENT OF TRANSPORTATION'S SPECIFICATIONS AND STANDARDS. 2. 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. THE CONTRACTOR SHALL VERIFY THE ELEVATIONS OF ALL POINTS OF CONNECTION OR PROPOSED WORK TO EXISTING CURBS, SANITARY LINES, WATERLINES, ETC, PRIOR TO CONSTRUCTION. 5. 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, BACKFILLED WITH SUITABLE MATERIAL AND COMPACTED IN ACCORDANCE WITH THE CURRENT VERSION OF THE VDOT ROAD AND BRIDGE STANDARDS AND SPECIFICATIONS. 6. ALL STORM SEWER DESIGN AND CONSTRUCTION TO BE IN ACCORDANCE WITH VDOT I AND I LD-94 (D) 121.13. 7. 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. 8. 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. 9. ALL CONCRETE SHALL BE A3-AE (AIR ENTRAINED 3,000 PSI), UNLESS OTHERWISE NOTED. 10. 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. 11. 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. 12. THE INSTALLATION OF SEWER, WATER, AND GAS MAINS (INCLUDING SERVICE LATERALS AND SLEEVES) SHALL BE COMPLETED PRIOR TO THE PLACEMENT OF AGGREGATE BASE COURSE. 13. ALBEMARLE COUNTY APPROVAL OF CONSTRUCTION PLANS DOES NOT PRECLUDE THE RIGHT TO REQUIRE ADDITIONAL FACILITIES AS DEEMED NECESSARY. 14. 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. 15. THE SCHEDULING OF AGGREGATE BASE INSTALLATION AND SUBSEQUENT PAVING ACTIVITIES SHALL ACCOMMODATE FORECAST WEATHER CONDITIONS PER SECTION 315 OF THE ROAD AND BRIDGE SPECIFICATIONS. 16. THE OWNERS 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). 17. A GEOTECHNICAL ENGINEER IS TO ASCERTAIN CAUSE AND CERTIFY RECOMMENDED METHOD OF REPAIR FOR ALL PAVEMENT STRUCTURAL FAILURES PRIOR TO STATE ACCEPTANCE. 18. ALL VEGETATION AND ORGANIC MATERIAL MATERIAL IS TO BE REMOVED FROM THE PROPOSED PAVEMENT LIMITS PRIOR TO CONDITIONING OF THE SUBGRADE. 19. CERTIFICATION AND SOURCE OF MATERIALS ARE TO BE SUBMITTED TO THE OWNER FOR ALL MATERIALS AND BE IN ACCORDANCE WITH THE ROAD AND BRIDGE SPECIFICATIONS, AND ROAD AND BRIDGE STANDARDS. 20. ALL APPROACH GUTTERS TO SAG INLETS SHALL MAINTAIN A MINIMUM SLOPE OF 0.004 ft./ft. 21. ALL NEW HANDICAP ACCESSIBLE REQUIREMENTS ON -SITE AND WITHIN ALL NEW STRUCTURES SHALL COMPLY WITH THE 2009 UNIFORM STATEWIDE BUILDING CODE, 2009 VIRGINIA CONSTRUCTION CODE, 2010 ADA STANDARDS FOR ACCESSIBLE DESIGN AND ICC/ANSI A117.1-03. 22. REFER TO SHEET L1.0 FOR ALL LANDSCAPING GENERAL NOTES. 23. VISIBILITY OF ALL MECHANICAL EQUIPMENT FROM THE ENTRANCE CORRIDOR SHALL BE ELIMINATED. 24. ALL WATER LINES, SEWER LINES, AND FIRE LINES FROM THE MAIN TO THE STRUCTURE MUST HAVE A VISUAL INSPECTION PERFORMED BY THE BUILDING DEPARTMENT. 25. ALL ROOFDRAINS SHALL DISCHARGE IN A MANNER NOT TO CAUSE A PUBLIC NUISANCE AND NOT OVER SIDEWALKS. 26. BUILDING OR 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. CONTACT VDOLI FOR ADDITIONAL REQUIREMENTS AND PERMITS FOR DEMOLITION PROJECTS. 27. BUILDING INSPECTIONS MUST VERIFY PROPER ABANDONMENT OF SITE UTILITIES BEFORE CONCEALMENT. 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 OWNER 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 VVITHIN 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) ALBEMARLE COUNTY ENGINEERING GENERAL CONSTRUCTION NOTES 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 (VDOT). 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 CONFORM TO CURRENT SPECIFICATIONS AND STANDARDS OF VDOT. 3. EROSION AND SILTATION CONTROL MEASURES SHALL BE PROVIDED IN ACCORDANCE WITH THE APPROVED EROSION CONTROL PLAN AND MUST BE INSTALLED PRIOR TO ANY CLEARING, GRADING OR OTHER CONSTRUCTION. 4. ALL SLOPES AND DISTURBED AREAS ARE TO BE FERTILIZED, SEEDED AND MULCHED. 5. THE MAXIMUM ALLOWABLE SLOPE IS 2:1 (HORIZONTAL:VERTICAL). WHERE REASONABLY OBTAINABLE, LESSER SLOPES OF 3:1 OR BETTER ARE TO BE ACHIEVED. 6. PAVED, RIP -RAP OR STABILIZATION MAT LINED DITCH MAY BE REQUIRED WHEN IN THE OPINION OF THE COUNTY ENGINEER, OR DESIGNEE, IT IS DEEMED NECESSARY IN ORDER TO STABILIZE A DRAINAGE CHANNEL. 7. ALL TRAFFIC CONTROL SIGNS SHALL CONFORM 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 UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA STANDARDS FOR THE CONSTRUCTION INDUSTRY (29 CFR PART 1926). 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. BLASTING NOTES 1. BLASTING SHALL NOT BE PERMITTED ON THIS PROJECT. SITE PLAN LEGEND 101- WATER STORM PIPE STORM MANHOLE DROP INLET & STRUCTURE NO CURB CURB & GUTTER LIMITS OF DISTURBANCE X FENCE XXX MAJOR CONTOUR XXX MINOR CONTOUR TC 725.94 PROPOSED SPOT ELEVATION 10 PARKING COUNT GRADING TC = TOP OF CURB TW = TOP OF WALL BW = BOTTOM OF WALL TS = TOP OF STAIRS BS = BOTTOM OF STAIRS FC = FACE OF CURB EP = EDGE OF PAVEMENT EX. = EXISTING PROP.=PROPOSED APPROX. = APPROXIMATELY �� LxLTH OF o00 L SHOH'ALTER Lie. No, 0402057151 'Op 05/10/2021 .L.: 10 NA I V-r CL O oc H z 0 a v ui w 0 z O V) w of i n DATE 0511012021 DRAWN BY YT DESIGNED BY AM CHECKED BY is SCALE AS SHOWN LL J O 7 J I -I Q Lu 0 •♦ LL W V / w JOB NO. WW SHEET NO. C1.0 2" R .a e CONC CURB AND GUTTER CLASS 3A, (fc=3,000 PSI) CONCRETE j/ Q d aQ 13" a .d a . COMPACTED // ' e .a n d d SUBGRADE j ;.. 4 .14 " d / � a do, r 4 MIN. L 2'-0„ VDOT STANDARD CG-6 CURB & GUTTER No Scale r,.., ,. ^I ,.,., / 4„ No Scale CONTINUE 21B STONE BASE FROM ADJACENT PAVEMENT SECTION UNDER CURB 2.0" BITUMINOUS CONCRETE SURFACE COURSE - SM-9.5A (PLACED IN SINGLE LIFT) 4" TYPE 21B AGGREGATE BASE COURSE COMPACTED SUBGRADE QMDDENOTES LIGHT DUTY ASPHALT PAVEMENT ON PLANS LIGHT DUTY ASPHALT PAVEMENT SECTION No Scale R= %a" y ��- yr-+—•.e a,5 /YYV4 CONTROL JOINT SPACED AT WIDTH OF WALK (MAXIMUM) VDOT A-3 CONCRETE I 1i a :.�.a .. .,,,. "21B STONE BASE FROM ADJACENT PAVEMENT SECTION UNDER CURB EXIST GRADE METAL INSPECTION FRAME W/ SOLID LID (NEENAH R-1975 OR EQUIVALEW) 3' CONCRETE COLLAR CRUSHED STONE BEDDING IT 6" DI CLEANOUT PLUG AT £ND OF LINE CLEANOUT DETAIL COMPACTED SUBGRADE CONCRETE SIDEWALK JOINT DETAIL No Scale EXPANSION JOINT AT MAX OF 30', WITH PREMOLDED EXPANSION FILLER CONC. WALK 4" 21-B STONE VARIABLE WIDTH NON -SLIP BROOM FINISH MAX. CROSS SLOPE 2% Q. `4" 3,000 PSI AIR -ENTRAINED CONCRETE COMPACTED SUBGRADE 4" TYPE 21 B STONE NOTE: SIDEWALKS SHALL BE CONSTRUCTED IN ACCORDANCE WITH VDOT STANDARDS. n. CONCRETE SIDEWALK PAVEMENT SECTION No Scale 1 � OR AS SHOWN ON PLAN WHEN NOT ALONG SIDEWALK CURB WIPE DOWN DETAIL No Scale Asphalt Pavement 1Reatoration Detail for Open Cut Utility Installations Hill & resurface Mill & resurface Saw -cut existing pavement •es to the full depth of asphalt 7.5" total asphalt 12" min. 12. min. concrete pavement Asphalt Concrete Surface Material V depth or equal to the depth of existing T 6" min. Asphalt Concrete Base, Type BM-25.OA asphalt concrete, whichever is greater 1.5"min. Sub -base course depth Aggregate Base Material, Type I 10" min. yP shall be 10" or equal to Size No. 21A or 21B depth of existing sub -base. whichever is greater Horizontal and vertical surfaces '• Bench 6" Bench shall be tacked with RC-260 liquid Min. Min. asphalt at a rate of 0.1 gallon per NOTES: SY, or as determined by the district administrator's designee " Asphalt Concrete Surface Material: SM-9.5A for ADT < 10,000 Select Material Type I with minimum CBR = 30 SM-9.5D for ADT > 10,000 The district administrator's designee shall determine the Class I backfll material in accordance with Sec[ti n 302 of the Road and Bridge restoration requirements for other pavement types. Specifications "" Trench width and pipe bedding shall be in No. 26 or 27 aggregate pipe bedding in accordance with VDOT Std. PBA accordance with Sections 205 & 302 of the Road and Bridge Specifications 12 inches minimum beyond the edge of the trench .w on longitudinal open cuts, or 25 feet minimum beyond the trench centerline on perpendicular open cuts, or as determined by the district administrators designee. Date: August 27, 2014 SHOH'ALTER Lie. No, 0402057I5I 'Oq+� 05/10/2021 2 CL O oc H DATE 0511012021 DRAWN BY YT DESIGNED BY AM CHECKED BY JS SCALE AS SHOWN I..L J O V / W J DC LU Q 00 J z W V / W J I� Q LU 0 LU 016 JOB NO. 4695.00 SHEET NO. C1.1 LEGEND: II I I ILI I I I I I 4 CONC. STEPS 2 TREADS, 3 RISERS W/RAIL \ \ \ \ \ \ pp_ _ \ 4 \ �� \ CONC. LANDING ASPHALT I ROADWAY 2 LEVEL BLOCK STEEL STAIR (2019 'SCIENCE' ADDITION) 22 TREADS, 23 RISERS 20'WATERLINE I W/RAIL EASEMENT FOR ACSA \ ` ♦ \ \ \ \\\ -'PENDING RECORDATION) \ \ FFE=693.45' L i \ \ \ \ \ \ \ FFE=706.82'L2 18"MAPLE \ l \ SAWCUT CURB I con1C. 2"DEC c! \ \ \ ( yp STEP \ \ ( ) CONC. LEVEL 1 AT NEAREST JOINT TYP. STEEL LANDING �2^�',DEC �qq 2"0 P LEVEL 2- - -`alc� \ - D \ ` 28" PINE2" 611 ur N � �2" DEC `\36"PINES \ \36"OAK`S\ --- �� \ypO \ �\ ONO /I PEDESTAL -BENCHMARK CPO ANL SET 32" OAK \ \ \ ` \ \ ELE\V-691.4I REMOVAND \ I \I \ \C \ RELOCATE \ I I 1 EXISTING TREES I I 1 a —690� IF PNSIBLE OtE REPLACE\IN KIND' \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ I ICG-6 6 �5 \ \ \ ` \ FLVNCTIC)NING I j / 2 24"QAK` REMOVE PORTION OFI AS FLUME EXISTING\ 22 HDf}E A— ` NEB ESSARY PERR THEI G"INGANQDRAINAGEPLANI I II \ -- -_- - 4_-689_ 2"DEC . \ \ \ \ \ \ \ 30" OA\K`\ REMOV4 CONCRETE IT FLUE AIS REQUIREy i 1 P R GFAD1/NGIAND ID"INP)6E IPL fN I /// \ - -s� e� / EMOVE1 ND{NALM F[LUOUTLET /NOkHEID) I V-688 -687- 34' ` j / - Q tEMO\/E ARMOR y INV8Q8T 12r HOPEND ALLJ 1684^1\ REOVE -RISF\R ST r, (2.66'QIAYLOPLA�T) / ? IRON,(Y) / / / / I 68S ` SO =6457' / J/ w Aj �61.9' / / / i / , i / I I / 11 I I/ I/ i i _ ,68z` \ INV e PUT=64.5' 12"HDAg 1 G II t I 1 1 I // / / REMOVE i COQ RDIf ATE ANY / I 1 I I / SWMPOIv \ \ � 2"DE RIEQUIRBD RErROUTIhG I I 1 / I FLOOR NOT VYATH U�ILITYICOMPANY 1I I I I I ; \ \\ LOCATED ) X\ l\ ® REMOVE ASPHALT ® REMOVE CONCRETE A��K41 0 SAW CUT CURB SIDEWALK OR ASPHALT (SIDEWALKS AND CURB TO BE CUT AT NEAREST JOINT) MULTI -LEVEL BRICK SCHOOL FACILITY WESTERN ALBEMARLE H.S. FFE=693.39' (5941 ROCKFISH GAP TPKE.) ( FFE=691.85' 2LEVEL �P \VP��/ BRICK SCHOOL �/ MHD FACILITY TOP=69L64' / INV. 1N_686. 74' 12'OIP V / / INV IN-690.63' 3" PVC INV. OUT=686.62'f0"HOPE SD INLET (20 DIA. NYLOPLAST) CUT AND REMOVE TOP=690.40' EXISTING 12" HDPE PIPE INV. 1N-6686.8T 6"PVC AS NECESSARY DOWN I INV. OUT=686.52' 12"HDPE I FROM THE NEW DOGHOUSE INLET CONNECTION \ IFgsg4' \ i Og / O; T 0 EM�(E EXIST IN GRAVEL \ \ 1 \ \ ✓ / / BATH \ -688- AD24 \ / /fro A • �o ,\O •EL0C_E AND RELEXISTING �5 TREES IF POSSIBLE Qe� OR REPLACE IN IZTN � ASPHALT PARKING THIS TOPOGRAPHIC SURVEY WAS COMPLETED UNDER THE DIRECT AND RESPONSIBLE CHARGE OF JOSEPH C. MEDLEY FROM AN ACTUAL GROUND SURVEY MADE UNDER MY SUPERVISION; THAT THE ORIGINAL DATA WAS OBTAINED ON THE FOLLOWING DATES: APRIL 13, 2021. THIS BASE -MAP AND DIGITAL GEOSPATIAL DATA INCLUDING METADATA MEETS MINIMUM ACCURACY STANDARDS UNLESS OTHERWISE NOTED. SURVEY NOTES 1. HORIZONTAL DATUM IS BASED ON NAD83 (NA2011), VIRGINIA STATE GRID, SOUTH ZONE. VERTICAL DATUM IS BASED ON NAVD88. DATUM ESTABLISHED THROUGH NETWORK RTK GPS (LEICA SmarLNET) OBSERVATIONS. 2. TOPOGRAPHIC DATA DEPICTED BASED ONA CURRENT FIFLD SURVFYBY THIS FIRM, COMPLETED APRIL 13, 2021. 3. THIS IS NOT A BOUNDARY SURVEY; WESTERN BOUNDARY LINE DEPICTED HEREON IS COMPILED FROM DEEDS AND PLATS OF RECORD AND RECOVERED MONUMENTATION. 4. MISS UTILITY TICKET INITIATED, TICKET NO. B109502497-008. NO UNDERGROUND UTILITYINVESTIGATION BEYOND INFORMATION PROVIDED VIA MISS UTILITY HAS BEEN CONDUCTED BY THIS FIRM. 5. NO TITLE REPORT FURNISHED, EASEMENTS MAY EXIST WHICH ARE NOT SHOWN HEREON. 6. CONTOUR INTERVAL - 1' � [,ALTH OF L/ O ti ;ll\.%THA\N. SHOW'ALTLR y l.lc. No. 0401-057151 'q+ 05/10/2021 4,r' �'rS/O,uAI c�co z O a v In w 0 z O V) w cr Ln 0 0 2 LEGEND o ® WATER VALVE FIRE HYDRANT H D STORM DRAINAGE (SD) MANHOLE 0 w ® ® STORM INLET W/ GRATE ® ROOF DRAIN/DOWN-SPOUT DIP DUCTILE IRON PIPE V C� PVC POLY- VINYL CHLORIDE PIPE ¢ HDPE HIGHDENSITYPOL Y-ETHYLENE PIPE Z O DATE TEL COM PEDES TAL m 04 LIGHTPOLE > ® UTILITY VAULT, AS NOTED Q� 0511012021 0 DRAWN BY - UFO - UNDERGROUND FIBER /TEL COMM } - W - WATER LINE YT - UGP - UNDERGROUND POWER/ELEC UTILITY • DESIGNED BY OHP OVERHEAD POWER/UTILITY . AM —X— FENCE -LINE • CHECKED BY EDGE OF PAVEMENT (EP) J5. TREE LINE/EDGE OF WOODS • • SCALE CONIFEROUS TREE • 1 "=20' DECIDUOUS TREE (DEC) • SWK SIDEWALK • v SIGN • 0 PROPERTY CORNER FOUND (AS NOTED) HC RAMP /GRATE SD IN T (2.0 DIA. NYLOPLAST) (TOP ' UPO TOP=683. 16' INV. .94' 12" HDPE 15'\ IN -679 08' 12" HDPE (POND) INV. OUT=678.85' 15"HDA 06 I I \ o .7SERASIMARKED FROM _ IN�IN=679.0I'8"PVC(S) I ` PRIOR SUR�E S \ \ \ \ lI I \ \ \ \ \ \(NO7RKED ` VV OU72"HDP HALA \NTEMRORARILY) \1 \\ \ \ I \ CUTAND•REMOVE VISTING \ 1 GREENHOUSE \ \ \ I 4" HDPE PIPI�AS NECESSARYv°o Uq FROM THE NEVW QOGHbVSE \ \ \ \ \ I INLET CONNECTIOON \ \ \ / I 1 ' I POJIYER AS M OM PRIOR (NOT MARKE o� e COORDINATE FINAL SEWER AND WATER LINE ROUTING, SIZE, MINIMUM COVER, AND CONNECTION TO EXISTING FACILITIES WITH MEP ENGINEER AND PLUMBER BEFORE BEGINNING DEMOLITION OR CONSTRUCTION Y) REMOVE ASPHALT T-.::: I R / TO CUR6 INLET W/MHD �RV(/TOP=683.7TINV IN=67844'15"HDPE INV IN=678.32' 15"HDPE TO OUTFALL / SECTION \- SAWCUT CURB OF CG-6 AT NEAREST JOINT (TYP.) 1 STORY UTILJTY BOX ON WOOD FRAME CONO PAD BLDG. ® EXISTING SEINER PUMP 0 SCALE 1"=20' 0 20' 40' I..L J D 0 O V) ui J Lu Lu LL W JOB NO. 695.0 SHEET NO. C2.0 0 m c a g0 $0 �z 20 o � E 0 � d � N a0 0 0 3 z z„ o� � a F F m o 0 2 a 2 .N Y N X C 0.0 016 d N m = M a m 10 a 0 m o h15 a m m 0 m s. E m � E EROSION AND SEDIMENT CONTROL NARRATIVE PROJECT DESCRIPTION THIS PROJECT INCLUDES AN ADDITION OF A MODULAR CLASSROOM TO WESTERN ALBEMARLE HIGH SCHOOL, SITE IMPROVEMENTS, AND ASSOCIATED UTILITIES & LANDSCAPING. THE LIMITS OF DISTURBANCE IS 0.55 AC.. ADJACENT PROPERTY THESE IMPROVEMENTS ARE BEING MADE WITHIN THE PROPERTY BOUNDARY. THE PROPERTY IS BOUNDED BY ROCKFISH GAP TURNPIKE TO THE NORTH, HIGHWAY ROUTE 64 BORDER THE SOUTH, MILLER SCHOOL ROAD TO THE EAST. THE WEST SIDE IS BORDERED BY COMMERCIAL PROPERTIES. EXISTING SITE CONDITIONS THE SITE IS CURRENTLY THE LOCATION OF WESTERN ALBEMARLE HIGH SCHOOL. OFF -SITE AREAS NO OFF -SITE AREAS WILL BE DISTURBED AS A PART OF THIS PROJECT. CRITICAL EROSION AREAS NO CRITICAL EROSION AREA EXIST. 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. EROSION AND SEDIMENT CONTROL MAINTENANCE ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE MAINTAINED IN ACCORDANCE WITH VESCH AND THE CONSTRUCTION SEQUENCE, INCLUDING THE INSPECTION OF ALL MEASURES AFTER ALL RAIN EVENTS. 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 SEDIEMENT BARRIERS SHALL BE INSTALLED DOWNSLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SETTLEMENT LADEN RUNOFF FROM SHEET FLOW AS INDICATED. ITS PRPOSE IS TO 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. OUTLET PROTECTION - 3.18 STRUCTURALLY LINED APRONS PLACED AT THE OUTLETS OF PIPES OR CHANNEL SECTION TO PREVENT SCOUR AND PROTECT THE OUTLETS STRUCTURE. 5. DUST CONTROL - 3.39 DUST CONTROL IS TO BE USED THROUGH THE SITE IN AREAS SUBJECT TO SURFACE AND AIR MOVEMENT 6. TREE PROTECTION - 3.38 PROTECTION OF DESIRABLE TRESS FROM MECHANICAL AND OTHER INJUSRY DURING LAND DISTURBING AND CONSTRUCTION ACTIVITY. VEGETATIVE PRACTICES: 7. 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. 8. PERMANENT SEEDING - 3.32 FOLLOWING GRADING ACTIVITIES, ESTABLISH PERENNIAL VEGETATIVE COVER BY PLANTING SEED TO REDUCE EROSION, STABILIZE DISTURBED AREAS, AND ENHANCE NATURAL BEAUTY. 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 1. A PRE -CONSTRUCTION MEETING IS REQUIRED WITH ALBEMARLE COUNTY E&S INSPECTOR, CONTRACTOR, OWNER, AND ENGINEER. THIS MEETING SHALL TAKE PLACE AT THE COMMUNITY DEVELOPMENT OFFICE. CLEARING LIMITS MUST BE FLAGGED PRIOR TO THE MEETING WITH ONE (1) WEEK OF NOTICE. 2. INSTALL CONSTRUCTION ENTRANCE, SUPER SILT FENCE, TREE PROTECTION AND INLET PROTECTION. E&S MEASURES FOR MOBILE CLASSROOMS REMOVAL AREAS DENOTED ON PLANS. NO WORK SHALL BEGIN IN THOSE AREAS UNTIL ALL ESC MEASURES IN THOSE AREAS ARE INSTALLED. 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 1. FINE GRADE PROJECT AREA. APPLY PERMANENT SOIL STABILIZATION TO THESE AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS ACHIEVED. 2. APPLY PERMANENT SOIL STABILIZATION TO THESE AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE 1S ACHIEVED. SILT FENCE MUST BE MAINTAINED THROUGH GRADING AND CONSTRUCTION. 3. 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 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. MS-5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION. MS-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 STORM 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. 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 DEWATERING 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 THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, CHAPTER 8 PAGES 20-24. GENERAL EROSION AND SEDIMENT CONTROL NOTES: .y:kall0; ES-1: UNLESS OTHERWISE INDICATED, CONSTRUCT AND MAINTAIN ALL VEGETATIVE AND STRUCTURAL EROSION AND oo. L�Cti' SEDIMENT CONTROL PRACTICES ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE LATESTM. SHOH'ALTER Y EDITION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. Lic. No, 0402057151 ES-2: THE CONTROLLING EROSION AND SEDIMENT CONTROL AUTHORITY WILL MAKE A CONTINUING REVIEW AND ADO 05/lO/2021 �494' EVALUATION OF THE METHODS AND EFFECTIVENESS OF THE EROSION CONTROL PLAN. .nay G�2 f tt ES-3: PLACE ALL EROSION AND SEDIMENT CONTROL MEASURES PRIOR TO OR AS THE FIRST STEP IN CLEARING, GRADING, ^M�i OR LAND DISTURBANCE. ES-4: MAINTAIN A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN ON THE SITE AT ALL TIMES. o E N U ES-5: PRIOR TO COMMENCING LAND -DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS a c (INCLUDING, BUT NOT LIMITED TO, OFFSITE BORROW OR WASTE AREA), SUBMIT A SUPPLEMENTARY EROSION > E CONTROL PLAN TO THE ARCHITECT/ENGINEER AND THE CONTROLLING EROSION AND SEDIMENT CONTROL AUTHORITY w °1 E FOR REVIEW AND ACCEPTANCE. r L > 3 w 3 ES-6: PROVIDE ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS o o o 2 �. DETERMINED BY THE RESPONSIBLE LAND DISTURBER. (MODIFIED NOTE) 0a w M J U m J - uj 0 ES-7: ALL DISTURBED AREAS SHALL DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING a > o 0°'CL H LAND -DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT. L9 W v v 3: 0 cJ ES-8: DURING DEWATERING OPERATIONS, PUMP WATER INTO AN APPROVED FILTERING DEVICE. w ES-9: INSPECT ALL EROSION CONTROL MEASURES DAILY AND AFTER EACH RUNOFF- PRODUCING RAINFALL EVENT. MAKE ¢ p ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES � Ln IMMEDIATELY. "' w vm SOILS INFORMATION: OD J %D 7B - BRADDOCK LOAM, 2 TO 7 PERCENT SLOPES, MORE THAN BO INCHES TO RESTRICTIVE FEATURES, WELL DRAINED, HYDROLOGIC SOIL GROUP: B �i 37C3 - HAYESVILLE CLAY LOAM, 7 TO 15 PERCENT SLOPES, MORE THAN 80 INCHES TO RESTRICTIVE FEATURES, WELL DRAINED, HYDROLOGIC SOIL GROUP: B 0 x c� 37D3 - HAYESVILLE CLAY LOAM, 15 TO 25 PERCENT SLOPES, MORE THAN 80 INCHES TO RESTRICTIVE FEATURES, WELL p DRAINED, HYDROLOGIC SOIL GROUP: B H 0 GENERAL CONSTRUCTION NOTES FOR EROSION AND Q SEDIMENT CONTROL a c� 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. DATE 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 05/10/2021 REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. 0 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. DRAWN BY 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 YT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION • DESIGNED BY 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 . AM 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 • CHECKED BY ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. • 8. DURING DEWATERING OPERATIONS, WATER VVILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. is 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING • • SCALE EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. • AS SHOWN 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. LL 16. THE OWNER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO PERMANENT STORMINATER < Q MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF z THE SALE OF ANY LOT, UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY. J 17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75 LBS/ACRE, AND IN THE (D MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 50/50 MIX OF ANNUAL RYEGRASS AND CEREAL WINTER RYE, OR IN w 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. } cl 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. AGRICULTURAL GRADE O 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 O u) 180LBS/ACRE AND CONSIST OF 95% KENTUCKY 31 OR TALL FESCUE AND 0-5% PERENNIAL RYEGRASS OR KENTUCKY 0 U LIJ BLUEGRASS. STRAW MULCH IS TO BE APPLIED AT 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVAL BY THE COUNTY w EROSION CONTROL INSPECTOR. ct� 19. MAINTENANCE: ALL MEASURES SHALL BE INSPECTED WEEKLY AND AFTER EACH RAINFALL EVENT. ANY DAMAGE OR CLOGGING ,^ < 0 TO STRUCTURAL MEASURES SHALL BE REPAIRED IMMEDIATELY. SILT TRAPS SHALL BE CLEANED WHEN 50% OF THE WET V / w z STORAGE VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS SHALL BE RESEEDED WHEN NECESSARY TO ACHIEVE A m � J GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYKES WHICH COLLECT SEDIMENT TO HALF THEIR HEIGHT MUST BE Q O CLEANED AND REPAIRED IMMEDIATELY. 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS OF FINAL SITE w U STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR. z 21. THIS PLAN SHALL BE VOID IF THE OWNER DOES NOT OBTAIN A PERMIT WITHIN 1 YEAR OF THE DATE OF APPROVAL. (WATER O PROTECTION ORDINANCE SECTION 17-204G.) 22. PERMANENT VEGETATION SHALL BE INSTALLED ON ALL DENUDED AREAS WITHIN NINE (9) MONTHS AFTER THE DATE THE LAND Q J U DISTURBING ACTIVITY COMMENCED. (WATER PROTECTION ORDINANCE SECTION 17-207B) O= z w u uj U F--4 J m in Q p LL a U] p�°0zz O;6 wwo J F•1 � I ^ v ) W O con/ J w Q Lu JOB NO. 4695.0 SHEET NO. C3.0 1. SET THE STAKES. FLC 2. EXCAVATE A 4"X 4" TRENCH UPSLOPE ALONG THE LINE OF STAKES. 110 3. STAPLE FILTER MATERIAL TO STAKES AND 4. BACKFILL AND COMPACT THE EXTEND IT INTO THE TRENCH. EXCAVATED SOIL. SHEET FLOW INSTALLATION (PERSPECTIVE VIEW) GRAVEL CURB INLET SEDIMENT FILTER GRAVEL FILTER 12 RUNOFF WATER WIRE MESH FILTERED WATER J •r's• .y P• SEDIMENT IIIo; •: ,•A.°- CONCRETE " GUTTER CURB INLET 12" ` GRAVEL SHALL BE VDOT #3, #357 OR 5 COARSE AGGREGATE. ✓��II��®��I��glllllgllllll��� SPECIFIC APPLICATION: THIS METHOD OF INLET PROTECTION IS APPLICABLE AT CURB INLETS WHERE PONDING IN FRONT OF THE STRUCTURE IS NOT LIKELY TO POINTS A SHOULD BE HIGHER THAN POINT B. CAUSE INCONVENIENCE OR DAMAGE TO ADJACENT STRUCTURES AND OSF DRAINAGEWAY INSTALLATION 3.05-2 IP UNPROTECTED AREAS. 3.07-6 (FRONT ELEVATION) O SILT FENCE (W/O WIRE SUPPORT) SRMWATER INLET PROTECTION No Scale �NoS�cale 1. SET POSTS AND EXCAVATE A 4"X4" TRENCH UPSLOPE ALONG THE LINE OF oneTe 3. ATTACH THE FILTER FABRIC TO THE WIRE FENCE AND EXTEND IT INTO THE TRENCH. SILT FENCE No Scale 2 X 4" WOOD FRi - -- 1.5' MAY C STAKE FABRIC — 2. STAPLE WIRE FENCING TO THE POSTS. 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. ON1:10611.1►1101-7:1[•1G1�IH9'11:7�I�IC•i1a�::1��[•I:: TH WIRE SUPPO SILT FENCE DROP INLET PROTECTION PERSPECTIVE VIEWS TYPICAL ORIENTATION OF VESCH TREATMENT - 1 SOIL (STABILIZATION BLANKET) y • • • 11=11=II=11. ll II III II"II"11111111 I11 Ri.� • • � .__ nnulln Ileu. -n n nnnnn-n=.u- • , � • nun. II. a-n= 1 If IIGI= 'rtl�rt'rt . • • • -n=n=n=it=1i=11=n • • n .. Ilu II - • • � • � L I: �lIII11II"III'II"II"]LIL�II BM 3.36-1 DROP INLET I SOIL STABILIZATION BLANKET (TREATMENT-1 WITH GRATE col No Scale DETAIL A GATHER EXCESS AT CORNERS ELEVATION OF STAKE AND FABRIC ORIENTATION SPECIFIC APPLICATION THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE THE INLET DRAINS A RELATIVELY FLAT AREA (SLOPE NO GREATER THAN 5%) WHERE THE INLET SHEET OR OVERLAND FLOWS (NOT EXCEEDING 1 C.F.S.) ARE TYPICAL. THE METHOD SHALL NOT APPLY TO INLETS RECEIVING CONCENTRATED FLOWS, SUCH AS IN STREET OR HIGHWAY MEDIANS. No Scale 11- 7�I •■' gyp■ go on I 1 IL i _ a PERSPECTIVE VIEW POLYETHYLENE FABRIC (ATTACH TO POSTS WITH METAL TIE WIRES SAF PERSPECTIVE VIEW PLASTIC FENCE SAFETY FENCE No Scale FABRIC I 10 PERSPECTIVE VIEW METAL FENCE PIPE OUTLET CONDITIONS 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 ANNUALRYEGRASS (LOLIUM MULTI-FLORUM) & 50-100 CEREAL (WINTER) RYE (SECALE CEREALE) FEB. 16 -APR. 30 ANNUAL RYEGRASS 60-100 (LOLIUM MULTI-FLORUM) TS MAY 1 - AUG. 31 GERMAN MILLET 50 (SETARIA ITALICA) TEMPORARY SEEDING PLANT MATERIALS No Scale TABLE 3.32-D SITE SPECIFIC SEEDING MIXTURES FOR PIEDMONT AREA TOTAL LBS. PER ACRE 3.1-1 MINIMUM CARE LAWN COMMERCIAL OR RESIDENTIAL 175-200 LBS. KENTUCKY 31 OR TURF -TYPE TALL FESCUE 90-100% IMPROVED PERENNIAL RYEGRASS 0-5% KENTUCKY BLUEGRASS 0-5% 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. ` USE SEASONAL NURSE CROP IN ACCORDANCE WITH SEEDING DATES AS STATED BELOW: FEBRUARY 16TH THROUGH APRIL.................................. ANNUAL RYE MAY 1ST THROUGH AUGUST 15TH ............................ FOXTAIL MILLET AUGUST 16TH THROUGH OCTOBER ............................... ANNUAL RYE NOVEMBER THROUGH FEBRUARY 15TH........................ WINTER RYE " SUBSTITUTE SERICEA LESPEDEZA FOR CROWNVETCH EAST OF FARMVILLE, VA (MAY THROUGH SEPTEMBER USE HULLED SERICEA, ALL OTHER PERIODS, USE UNHULLED SERICEA). IF FLATPEA IS USED IN LIEU OF CROWNVETCH, INCREASE RATE TO 30 LBS./ACRE, ALL LEGUME SEED MUST BE PROPERLY INOCULATED. WEEPING LOVEGRASS MAY BE PS ADDED TO ANY SLOPE OR LOW -MAINTENANCE MIX DURING WARMER SEEDING PERIODS; ADD 10-20 LBS./ACRE IN MIXES. PERMANENT SEEDING MIX FOR PIEDMONT AREA No Scale u u L-I !� u uuu uuu STANDARD ORANGE VINYL OR PLASTIC CONSTRUCTION FENCE ATTACHED TO POSTS (PRE -WEATHERED WOOD, GALVANIZED STEEL, IRON OR THICK PVC PLASTIC), AT LEAST 40" ABOVE FINISH GRADE WITH SPAN BETWEEN POSTS NO GREATER THAN 6' ON CENTER. EVERY NINTH POST SHALL CONTAIN A WARNING SIGN THAT CLEARLY IDENTIFIES THE TP FENCE AS A TREE PROTECTION FENCE. 3.38 NO SCALE TREE PROTECTION No Scale o�� LXLTH OF L c°f �c� SHOULTER Lie. No. 0402057151 'Oq+� 05/10/20,21 ��,�' �Ff GN2 Sr 1 1. �I t 4 m E 0 u N N N � > E w °1 E W i Q w O 3 � LL L n Q< J U OD J — I!1 H OL W O N v Z r 7 0 =x �j oQ �� c U v a Cl!Lfi ON aM v OD J z O a Ln w 0 Z O V) W >t n DATE 0511012021 DRAWN BY YT DESIGNED BY AM CHECKED BY is SCALE AS SHOWN Ln Q Q . J JZ,� D Q > Lu O O U w LJJ Q O (nLuz Lu 2m _j J Q 0 W U oCoo �0z w U L1J � C 00 U F i J m 0 W a Ln C6 zz p�°z wLu J /F1 v , ^ w [] VI °� a/ J w a Lu a m N 16 0 N m JOB NO. 695.0 SHEET NO. C3.1 I I ILI I I I I� I / CONC. STEPS SOIL TYPE: ` \`\`� \` `\�� 3RISERTREADS, \ \ \ \ \ / \ \ \ 3 RISERS bV/RAIL 2C) ASPHALT I CONC LANDING o �y� �p \ ROADWAY 2 LEVEL BLOCK STEEL STAIR o NO*I I l Y \ 22 TREADS, (20 19'SCIENCE' ADDITION) 23 RISERS 20'WATERLINE I W/RAIL - - EASEMENT FOR ACSA \ RECORDATION) \� \ FFE=693.45' L 1 FFE=706.82' L2 18"A4.APLE \ \ I CONC. 2"DEC CONC. LEVEL i 2" DEC ��w�v��,, 1 \ ` \ ` \ ♦ ` \ \ GiO \ STEEL LANDING },aq 2"D O` a _2l a \ \ 28"P\E 'Lts' 2"DEC Pam A ` 7S 2" DEC ` \ \ 36"\OAK 'FIGFlF CE WITNi': PEDE _ \ o /� o r47,IV /\ s , Si�gpRo SSF Nl4\R ` \ rn� \ \ o 32" OAK ° -690� \8"OAK\��C�''t�\ \ ` SSF I` I 1 / I \ 6" DEC SOIL TYPE: \ `�\ \ \\ \\ ` I G-s I /� 6"DEC \ /VNCTIJl1CV ING 37D3 `\ \6) \ \ \ \ \ \ 24N QAK l \ I ASFLUME ` `S\ \ ` \ \ \ \LYMITS Q DISTURBANCE=�O 55 AC\ACR�S -689- 2"DEC i 30" OAK \ 1 I I DC. TS SSF MULTI -LEVEL BRICK SCHOOL FACILITY WESTERN ALBEMARLE H. S. 39' (5941 ROCKFISH GAPTPKE) -FFE-691.85' v is Q / 2LEVEL Q4 \U �/ BRICK SCHOOL / MHD FACILITY TOP-691. 64, INV. 1N=686.74' 12'DIP 6 / INV. IN-690.63' 3" PVC INV. OUT=686.62' 10" HDPE / _ _ C C. SD INLET (2 D D/A. NYLOPLAST) / TOP=690.40' INV. IN-6686.87' 6" PVC /l INV. OUT=68652'72"HOPE Q1 / \ \\ \\ \ \ \\ \\\ \ \I \I 1 1 I 1 / / l I I �j/ �-.68a,._-•\ /P / _>// _ _-681^ NO VALrI rw-Jo') INOkH ID)I OUTLET58634' \` _ - -667- _PIPE OUTLET (END WALL) ARMOR ` INV "Z;84.8\' 12" HDPE Z/ / / / / J I I I I / RtSF\RST,(Q. ` Q`Fe / as z / / / /< / / / / ) I I I I r/ - / - - - YLOPLANT) tZ IRON to '� i / / / / /' T /' l I l I 68`s\/ SOe=68$.5T i m A j-861.9' / / / / / 1 I ! I I I / / / �� INV �UT=67�.5' 1 v" HD�6 1 I I I I �685- 00000// SSF // I l I 1 I) I I I /l/l/l SWMPOND 2D�.E,,c 1 I I I DC I FLOOR NOT \ 1 tits' \ a* / // /L ' I 1 I II I I TS 1 / \ \ LOCATED 1 I tits' IP \\\ \\ D p HC RAMP I�I LET IP E 1?.5' 2.5' SD INLET (2.0 DIA. NYLOPLAST) (TOP 83.5D' 7OP=6 �N=678.94' 12" HDPE 79.08' 12"HD.01!PE( NDI IP INV. T=67 5' 15"HDP I \ \ o FIBER ASMARKED FR \ I PRJOR SURl7EYS U 2 OP - \ \ l I \ \ \ \ (NO7`1�M NTEMRORARILY) \ 1 / / GREENHOUSE ' 0 I 1 1 ' IT 1 -688' ASPHALT PARKING POWER AS M FROM PRIOR {NOT MARKS Y) 72" AD24 \ \ hb `-- /r SD CURB INLET W/MHD IP TOP=683.77' INV IN=67644' 15"HOPE 15" INV. IN-67832' 15"HDPE ` TO OUTFALL E I STORY UTILITY BOX ON WOOD FRAME CONC. PAD BLDG. ® 4— EXISTING SEWER PUMP EROSION CONTROL LEGEND LIMITS OF CLEARING AND GRADING SOIL AREA DIVIDE SAF —SAF SAFETY FENCE 3.01 CONSTRUCTION ENTRANCE INLET PROTECTION TEMPORARY SEEDING PERMANENT SEEDING MULCHING TP Tp TREE PROTECTION FENCE DC DUST CONTROL BM AREAS STEEPER THAN 3:1 TO BE STABILIZED WITH STABILIZATION BLANKET 3.02 3.07 3.31 3.32 3.35 3.38 3.39 3.36 * "VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK" SPECIFICATION NUMBER J M co Q Z SCALE 1 "=20' 0 20' 4O. LALTH 0; O ti L' ,11N.%THA.\N. SHOW'ALTER y I.Ic. No. 0401-057151 05/10/2021 o�,�' am O oc DATE 0511012021 DRAWN BY YT DESIGNED BY AM CHECKED BY JS SCALE 1"=20' JOB NO. 695.0 SHEET NO. C3.2 1 1 I i I 0 I O I I I I 4 I 1LEVEL p BRICK SCHOOL FACILITY I I I I O I I \ I 4 - \ /\ CONC. STEPS 27READS 3 RISERS W/ RAIL ASPHALT I CONC. LANDING mZ� �Q \ ROADWAY \ 2 LEVEL BLOCK I IY\\ STEEL STAIR (2019 'SCIENCE'ADDITION) N\ w o22 \ \ \v 23 RISERS ENTFORACSA I W/RAIL EASEMENT FOR ACSA � \ \ \ J \ \ \ \ \ \ �'RBNQIN`G RECORDATION) \� \ FFE=693.45'LI \ �, \\ r I FFE=706 82' L2 \�C 18"MAPLE 2.,DEC \ \ \ \ \ I CONC. LEVEL 1 2"DEC , I Q STEEL LANDING },�v�yaq 2"D C` \p LEVEL 2- - - 92��1i..ttd� �F \ \ \ 28"Pl\NE \� I 2"DEC tidf 00� OVA /� \ \ \ \ \ 6"PINE \ \ A \ 36" OAK \ t1UFL_ CE \ \0 O 2" DEC/1 my / PEDE \ Ly \ I c9 c. �Ss9��oRo 69, \ Ap SSF �\ ` \ \ \TLc \p,io� \1\\ EROSION CONTROL LEGEND r_ LIMITS OF CLEARING AND GRADING or SOIL AREA DIVIDE SAF SAF— SAFETY FENCE 3.01 C E CONSTRUCTION ENTRANCE 3.02 IP ® INLET PROTECTION 3.07 TS TEMPORARY SEEDING 3.31 PS PERMANENT SEEDING 3.32 MU MULCHING 3.35 TP Tp TREE PROTECTION FENCE 3.38 DC DUST CONTROL 3.39 BM AREAS STEEPER THAN 3:1 TO BE 3.36 STABILIZED WITH STABILIZATION BLANKET * "VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK" SPECIFICATION NUMBER MULTI -LEVEL BRICK SCHOOL FACILITY WESTERNALBEMARLE H.S. 39' (5941 ROCKFISH GAPTPKE.) - FFE-691.85' 2 LEVEL 1 BRICK SCHOOL MHD FACILITY TOP-691. 64' INV. IN=686.74' 12"DIP / INV. IN=690.63' 3" PVC INV. OUT=686.62' 10" HDPE SD INLET (2 0 DIA. NYL OPLAS T) / TOP=690.40' INV. IN-668687' 6"PVC INV GUT=686.52'12"HDPE UMITSbF DIS URSANCI�\ 0.5kAC.\&F / ` c ` N \ I I \ \ \ \ \ \ \ 1 I 1 \ -689 / 0 \ \ \ \ \ 30"OAK I I I • \ \ \ \ \ \ '1 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ oIj cb co cb \ \� SSF .1, A�PS v0 -667� � MU \U ASPHALT i6 ^ \ \ rb / PARKING EIMI I , _ _ \ \ / l A /RON4)�) .(Z Aj,969.9'/ SSF I I /////� ` \ 1 qps i684- - I 1 I 1 muI\ 1 pS Fa HC RAMP 15 _- I MU / I SSF \OF _ �lN 94'12"HDPE \� \\ \� \ 0=7908'12'HDP,, IP IN Ur=67 5'15"HDPE I I I \ \ o FIBER ASIAAARKED FRt =679 01' 8" 'C (S) PRIOR SURiF1s U7' "-' 2 DP - I STORY \ \ I I \ \ \ \ (N0'kARKED ` � WOOD FRAME \ \ \ l I I \ \ \ \ NTEMPORARILY) \ I BLDG. GREENHOUSE 25' SETBA ) I I I I I I \ \ \ \ \ I I 1 I 1 \ \ \ I 1 1 I POWER AS M FROM PRIOR (NOT MARKS Y) FgsF \ G S AD24 00 ,7�OQ SD CURB INLET W/MHD TOP= I 'VV 1N= 676.678.44' 15"HDPE INV. IN=678.32' 15"HDPE TO OUTFALL UTILITYBOXON CONC. PAD ® EXISTING SEWER PUMP I SCALE 1 "=20' 0 20' 40' �' �Lxam OF oLGp ;V\: 1TK-NN M. SHOW'ALTER y I.Ic. No. 0401-057151 05/10/2021 2 am O oc Z O a v Iui w 0 Z O .. W DATE 0511012021 DRAWN BY YT DESIGNED BY AM CHECKED BY JS SCALE 1"=20' i _J O ) o �U J )z LCu G H� J 0 Lu 'z )0 J J I w JLU JOB NO. 695.0 SHEET NO. C3.3 I 2 I o I 0 I � I I 2 I ILEVEL p BRICK SCHOOL iFACILITY I � 2 C:-�D II I o I I \ I CONC. STEPS 2TREADS, 3 RISERS VY/ RAIL ASPHALT CONC LANDING 2 R 0 20�\ p \ ROADWAY \ 2 LEVEL BLOCK MULTI -LEVEL STEEL �I I I \ 22rREADSR 2019'SCIENCE'ADDITION I 8R/CKSCHOOL FACILITY 0 \+ 23 RISERS WESTERNALBEMARLE H.S. 20' WATERLINE I \\ FFE=693.39' (5941 ROCKFISH GAP TPKE) EASEMENTFORACSA W/ RAIL j'R€NQING— RECORDATION) \ V FFE=691.85' QyYA I — I FFE=693.45' L 1 \ � FFE=706.82' L2 ` 18"MAPLE \ l \ I COW. \ \ 6 STEP \ Q \ 2" DEC �S Q �/ 2 LEVEL \ \ \ \ \ \ O CONC LEVEL 1 2" DEC lom 1 OP STEEL LANDING 2" DQ ,C- i� / BRICK SCHOOL ` _ LEVEL 2- - - _ Ss� T �, �/ MHD FACILITY PINE \ \ \ \.i.+� Q /j TOP-691. 64' ` \ \ \ \ C� 1\ �( � Z+ —\ �V // INV. IN=686.74' I2"DIP RECONSTFU(,T FpRe \ 2"DEC VO O(� INV. IN=690.63'3"PVC n `\ - - - - - tGFdER �p p o \ CONCRETE FLUM \ c Z"DECVI my �/ INV. our=ssss2 10^HOPE 6" PINE \ \ 36" OAK _ _ _ W17NES�u cF \i RAIN TO A DITCH I "1 \ 1 C C. SD INLET (20 DIA. NYLOPLAST) / PEDESTAL \ _ \ \e �PROPOS INIL R y S \ 9 ♦ I \ NF \ I / TOP=690.40' NGse INV IN-6686.87' 6" PVC 1 i sq GOq� / �. /l INV. OUT-686.52' 12"HOPE J \�92ia�� \1\\ BENCHUTA�RK \` \ RAI D WA KVV4WITH 7 Ntl(L SET ` � AHANORAINS TO HERE a �7 327 a � \ \ \ " DAK \ \ ELE\V-691.41' \ \ �QESIGNED BY OTH RS) \ I 18"OAK\dc��vv++^^�����,,,\ \ \ \\ I 1 9r ♦8NTF0 \ / Rq 2d" eAK \ \ I I I O 0 \ \ 30" OAK ` \ \ \ \ \ \ ` \ \ \ \ 1 / I I I \ / ♦ ' r PRESERVE OR RECONSTR C6 lo J 3 PIC 4115 TeBLE AREAS AT `,a �00 0 DIRECTION O 914INER. It / /�O CJ CL \ `�\\`� \ I\\\ \\ \\\ \`\\ \\ \� \1 \I II I �/ / \ ♦I RF 690.20 `/' �, //MODULAR co��OJ \ �- 1 1 p I I ♦ ` �, _�, \ \ \ \ \ \ \ \ \ \ I I I I 1 1 1 A I 1 ♦ ♦ _ - Q� Q/ �0 o :� °off REPLANT 5 TREES SIMILAR IN SIZE / AND TYPE TO THE 5 TREES REMOVED IN AREA BETWEEN PATH ASPHALT AND PARKING LOT. COORDINATE PARKING LOCATION AND SPECIES WITH THE /' �� / �' �' 7 77 / i // / I4o � I I I♦ � / , ^,,. \ �', / ��'. TIE PROPOSEDCG-2 r POWER AS MA OWNER t� IRON (�J / / 1 1 1 ♦ , ' - \ XISTING AT 7 FROM PRIOR EYS NEAREST JOINT (TYP.) (NOT MARKS COORDINATE THE FINAL SEWER W AT$61.9' / / / / i , I I / 1 I I ( ' 7 ♦ ♦ 1 \ _ CONTEMPO Y) AND WATER LINE ROUTING, SIZE, / // I / I /I I 1 I 1 ///// ♦ \ \ 1 / l " ` Sq/V MINIMUM COVER, AND CONNECTION 30' RAMPNVITH HANDRAILS a T 1 \ TO EXISTING FACILITIES WITH MEP AND LANDINGS (DESIGNED I ENGINEER AND PLUMBER BEFORE BY OTHERS)/ BEGINNING CONSTRUCTION. _ _ TIE PROPOSED CG-6 J 9' _ _ _ _ 7 TO EXISTING AT SD CURB INLET W/MHO 2 TOP 683, 77' \ NEAREST JOINT p INV IN-678.44' 15"HDPE 1 1 I 1 8 Hi INV IN=678.32' 15"HDPE TOOUTFALL If 30 1'RM H� / \ HIANDRAIL13 "PIS' _ _ _ � `\\ �=%�D zET. /GRATE LANDINGS ��ESI�NbZBY\ ` SD INLE i v U0. N ✓L OPLAST (TOP OTHERS) \ �' �UF TOP-683. 16' `P INV ' .94'12"HDPE INVVIN=679 08' 12" HDPE (POND) INV 0UT=678.85' 15"HOPE I \ FIBER ASMvIARKED FROM \ l I 1 \ \ \ PRIOR SUR17EYYS _ Il%IY�. IN=679.01'8"PVC(S) 9 STORY UTILITY BOX ON \ ENV. OU 78.95' 12"HDP U \ \ l \ \ \ \ (N07%kARKED ` , \ WOOD FRAME CONC. PAD �NTEMRORARILY) �� \1 BLDG. ® EXISTING \ \ I \ \ \ \ SEINER PUMP GREENHOUSE 25' SETBAC\ I / 1 I \ \ \ \ \ \ \ I (o / I 1 v 00 z I SCALE 1 "=20' 0 20, 40' O ti Q ,1JN.1THA\'N. SHOW'ALTER y Lic. No. 040=057151 ADO 05/10/2021 ONAI M E O N U N � > E w °1 E W � Q LL o 3 LL Ow 0 W L M a J U m Z O 5 a_ H W w M �� U 30N¢ w 2 c N Z ¢ ° O �ui V) ON N W M � 7 OD J %D 1-- d 0 0 d H 0 w w Q C� Z O in DATE 0 0511012021 } DRAWN BY YT • DESIGNED BY . AM • CHECKED BY •SCALE • 1"=20' Q _I z U 0 > Oz 0 oLLJ z < d w m 2 Q I— W U 1--I J O z U Q W u D m"O J m >- Q a J zz 0 LLJ O U Lu Q W v J m J WQ JOB NO. 4695.00 SHEET N0. C4.0 c a m 0 m 0 a I I ILI I I I I I I I GONG. STEPS 2 TREADS, 3 RISERS W/RAIL ASPHALT I CONC LANDING 00 �ZC p \ ROADWAY \ \ \ \ �\ \ 2 LEVEL BLOCK STEEL TO I I I \ 22TREADS, STAIR (2019'SCIENCE'ADDIT/ON) 23 RISERS 20'WATERLINE I \ W/RAIL EASEMENTFORACSA 1'REIZING RECORDATION) \ \ _ I FFE=693.45' L 1 � \ \ � \ \ \ - \ \ \ ♦ \ `\ � \\ Fp � -692' I � r � FFE=706.82' L2 18"MAPLE��1.MtT% \ ( ONp I CONC. TEP 2"D \ \ CONE. LEVEL 1 �Ev�C,� 1 STEEL LANDING 2 DEC -14% I ` - -D titd 28, '\e \ \\\\ \ \EL2� -- - 2 2"DEC \ \ \ \ 6" PINE \ ` A36" DAK ` \ - - - - - fIG.FIBER \ \°HA \ C 2'�2A"YYDEC,I / \ WITNESS PEDESTAL -691- /T LOW AREA TO \ \ a p� 690 09' \ \ BENCHNIA\RK \ \ \ \ Ivi I Mim POSITIVE \ \\ o \\ `Et�� DRAINA-EAROUND NA(LSET `\ \� \\ 690.29' i 'U ELE\V-691.41' \ \ \ BI:IIL\NG \ 686 2' \ \ 690.20" \ \ \ \ \ \ \ \ 687.01, 18„ OAK\ \ \ \ \ I I . GLEANOUT\ I 1 6" HD BURIED \ \ \ \ \ \ \ \ \ \ 24' AK PIPE PEJR. ROOF \\ �\ �6.>S �\ �\ �\ \\ \ e\'tie�2. DRAIN AND \ \ \ \ \ \ \ \ \ GRADING NOT\UTS \ I \ \ \ \ \ \ \ \ 30" OAK \ I IO \ / sip\ \1 I I I I \\ \13'�IDE LE1/EL SPREADER 'I` / / I / I / \ FFE 690.20 TO'HANdL€ DgAINAGE \ , / L_QW-AREA TO FROM ROOF DRAINAGE \ \ I\\Mf INTAIN POS'lFWE PPAINAGE AROUNa - \ BUILDING- \ 1 OWN SPOUTS ON EAST SIDS TO BE PIPED \ UNbERT41LEVABCALE BdVE GRADeAND TIED 615.87' �O WE E �gyVN ' / / R7 / / i // / / / / / m r / a IRON,() S 87' w / / / / /' l I I / LEA/EL 68 . �7 T ,sez\ �65. AT$61.9'/ I / I ./ 1 I LANDING CO I I PIT 690.20 1I1\ I to / 6 I 1 \ �1 \ 68s�0' l I I ,82- I 1 I 1 I / 11 I j\ � I 1 I 686.ST 68S I I 1 1 I I I\ 1 N<q 685. / OpSD INLEr jl.v ciFi. rvOP-OAST' 70P=683.16' I \ \ \ \ \ \ \ \ INV�N-679 08' 12" HDPE (POND) I \ \ o FIBERASMARKED FROA4_ PRIOR SUR17E1S - lI�. IN=679.07'8"PVC (S) P)WOR�SUR GU 78.95'12"HOP NTEMRORARILY) ` \ 25' SETBAC)K / I 1 LEVEL LANDING AT-690.20 -6s9, .60, MULTI -LEVEL BR/CKSCHOOL FACILITY WESTERN ALBEMARLE H-S. (5941 ROCKFISH GAP TPKE) ` rrC-VJ I.OJ ti Q..(, 2 LEVEL 'Z \0 �/ BRICK SCHOOL MHD FACILITY 7OP-691. 64' INV. IN=06.74' 12"DIP INV. IN=690.63'3"PVC mo /� INV. OUT-686.62' 10" HDPE SD INLET (20 DIA. NYLOPLAS7) TO. TOP=690.40' /I INV. IN-6686.87' 6" PVC l INV OUT-686.52' 12"HDPE 690.3T s90. UGp 1 � ASPHALT PARKING POWER AS M FROM PRIOR (NOT MARKET CONTEMP Or/ IL Y) 72" \` `Fq`rF40 N F 104, DI-1 102: MH-1 STA 10+00.00 STA 10+10.91 TOP 689.92 TOP 689.93 INV IN 686.03 (EXIST 12" HDPE) INV IN 685.60 (103) INV OUT 685.82 (103) INV OUT 684.32 (101) RQ-r, 100: MH-1 STA 11+41.11 TOP 684.73 INV IN 681.06 (101) INV OUT 679.32 (EXIST 12" HDPE.) R9..i EXISTING GRADE 690 690 PROPOSEM GRADE 685 685 103 10.91' OF 12" HDPE 10, @ 2.00% 130.?0, F 680 12" 2 HOP 680 'S0 % 675 675 50 0 50 PROFILE SCALE 10+00 1+STR 104012+00 12+50 STR 100 HORIZ SCALE: 1"=50' V ERT SCALE: 1 "=5 ROOFDRAIN AND GRADING NOTES: 1. PIPES FROM ROOFDRAINS TO HAVE A MINIMUM SLOPE OF 1.0% OR AS SPECIFIED ON PLAN. 2. SOUTHERN ROOF DRAINS FROM DOWNSPOUT TO HAVE A MINIMUM COVER OF 2.0' 3. CONTRACTOR TO VERIFY IF DOWNSPOUT BOOT CAN BE SUBSTITUTED FOR CLEANOUT. IF NOT, PROVIDE CLEANOUTS AT ALL LOCATIONS WHERE ROOFDRAINS TURN OR CONNECT TO PIPE OUT OF BUILDING. 4. CONTRACTOR TO FIELD VERIFY ALL EXISTING AND PROPOSED STORM INVERTS OUT OF THE BUILDING AND CONFIRM REQUIRED SLOPES, COVER, CROSSING AND CONNECTION POINTS CAN BE ARCHIVED. CONTRA TOR SHALL COORDINATE ANY CONFLICTS WITH ENGINEER BEFORE BEGINNING CONST CTION. \ \ / JO ^ Oy \ / I ��1 \ / giro 0 :L SD CURB INLET W/MHO '684- - TOP=683.77' 684.4T HC RAMP INV. IN=678.44' I55' HDPE INV IN-678.32' 15'HOPE 10 FA - TO OUTFALL /GRATE V W INV �.94' 12"HDPE INV. OUT=678.85' 15"HDPE 1 STORY U COONC. PAD U UTILITY PAD WOOD FRAME BLDG. ® EXISTING SEWER PUMP GREENHOUSE A J SCALE 1"=20' 0 20' 40' ,V\.�THA� N. SHOW'ALTLR I.,c. No. 0401-057151 "q+ 05/10/2021 ���rS�TJNAI G�C,,`4 M E O N U N � > E w °1 E W > 3. Q LL 3 oLL .o� QaJ U0� N 0W O N v Z r 3x Lo � '4 c U to �ON N v m ON OD J %D CL O oc Z O a v In w 0 Z O V) w cY DATE 0511012021 DRAWN BY YT DESIGNED BY AM CHECKED BY JS SCALE AS SHOWN JOB NO. 695.0 SHEET NO. C5.0 0 0 Ll m 0 0 a g0 $O �z 20 o � E � d � N w0 Oc O 3 Z z„ o� � a F � o 0 2 a .2' N Y N X C 0.0 d N 0 = m 0 M a m 10 a 0 m o m m 15 a m m 0 c 0 m s. E � E o I I o I 1.NLT" 07, O�v ; u\.lTH,1\M. SHQH'.4LTER I I Lic. No. 040=057151 05/10/2021 O I O I '1►s}rs \ M \ _ __- �� M 00 z i I z �s \ \\\ \\ 1 SCALE 1"=40' \ _ I \ \\ \ O o.La o.ao o.oa n.vu \ \\\\�\9� \\ �\ SCALE 1"=40' > E y E j�•!�. \ 1 _ \ 10a E1ISTWG f �W �3 0 40' 80' _ \ \ \ \ \ \ , \ _ _ \ \ \ I 0 40' 80' F v 3 06 QW U0� Z os Q H— o O CL "\ \\\\�\'aL� \� / _i/ _i \\\,� \\"\ ��\ \per \ `/ 3oN¢ ul ui 1 1 \ ` \ \ v�� 04 \ \ \ \ �`\ 88 \ �' I \ \ tO w / / / / / / / , I ' I I 1 I _ \�-` - '68 LIMITS OF DISTURBANCE = 0.55 AC. cli/ / / / l / / / I / ^,� , Spa _ 101 _ �8 1 \ Lu Iw- m 0.05 AC OF IMPERVIOUS �. / / / / / / / / , q� w / / / / / / / / I ��\ 686\ = a Q o /\/ / rood - / I B/ //// / \ \ \ ,� �� 8 PRE -DEVELOPED rwa / / s%rse // o� / \`2�11 // I I I JJ/ \\ z O DATE \1Lh ,/ 11 I \ 1 I, J 05/10/2021 1 I 1 1 \\ I 1 I 1 1 0 DRAWN BY 1 I I I \ ■■ � \ gR �O�'68.� � � 1 I I I \ 1 lI`� \ �'� ..' �12"�0 VIA- YT DESIGNED BY O \ / \ `\ `\ u ` \ ` \ • � \ \ \ I \ 1 ` ` \ \ I � . AM CHECKED BY / , \ \ � `R' 1 / \ ` \ � � • I/ is PRE -DEVELOPED CONDITION ' STORMWATER DRAINAGE AREAS SCALE • 1 "=40' II WATER QUANTITY: r I IN THE DEVELOPED CONDITION THE RUNOFF FROM THE DISTURBED AREA WILL FLOW OFF I I AS SHEET FLOW. A LEVEL SPREADER IS PROVIDED AT POINTS OF CONCENTRATED z DISCHARGE TO RETURN RUNOFF TO SHEET FLOW. THIS PROJECT FULFILLS THE - � I REQUIREMENTS OF SECTION 9VAC25-970-66 SECTION D. \ Q > I 0z \� -off \`\ \ Y I \ ° 4 Ja Z WATER QUALITY CALCULATION (PHOSPHORUS REDUCTION REQUIRED) SCALE 1"=40' SUMMARY FROM RUNOFF REDUCTION SPREAD SHEET (SEE C6.1 STORMWATER CALCULATIONS): Lu z Z /\ 0 40' 80' TOTAL ON SITE DISTURBED ACREAGE: 0.55 ACRES Lu m T JQ Lu py d PRE -DEVELOPMENT LAND COVER: W U Lu `J 0.00 AC FORESTED/OPEN SPACE 0.50ACTURF Q Z 0.05 AC IMPERVIOUS Q �Da �g ` ` \ ���bs tip /► ` 1 �� POST -DEVELOPMENT LAND COVER: Q S'szo°� ` 0.00 AC FORESTED/OPEN SPACE O w 0.32 AC TURF U Q O / \ / 0.23 AC IMPERVIOUS \ \ \ I I \ G p;l; \ / _ 8� tip \ \ \ `� \ / REQUIRED REMOVAL: THE 0.34 LBS/YR REQUIRED REMOVAL WILL BE SATISFIED BY PURCHASING NUTRIENT 1 J J co a CREDITS. TO BE PURCHASED FROM A DEQ APPROVED CREDIT BANK IN ACCORDANCE WITH LIS CODE OF VIRGINIA 62.1-44.15:35. z 0 \ \ \ I I I I I I I /fib I,\\ 0 O U) LLJ / / / / w/ I I \ / 0 1 I� \g86\ ` / LIMITS OF DISTURBANCE = 0.55 AC. 0.23 AC OF IMPERVIOUS Lu z / _ LLJ POST -DEVELOPED Q JOB N0. 4695.00 POST -DEVELOPED CONDITION SHEET NO. C6.0