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HomeMy WebLinkAboutWPO201600084 Plan - VSMP WPO VSMP 2017-05-15v D11 OJAI VSMP PLAN COUNTY OF ALBEMARLE, VIRGINIA WHITE WALL DISTRICT 12/05/2016 VICINITY MAP SCALE: 1" = 2,000' OWNER: BYRD, STEPHEN CALDER OR JILL MARIE LORD 411 1ST ST N CHARLOTTESVILLE, VA 22902-4610 ARCHIT7CT: BUSHMAN DREYFUS ARCHITECTS PC 820 EAST HIGH STREET, SUITE B CHARLOTTESVILLE, VA 22902 CONTACT: JEFF DREYFUS TELEPHONE: (434) 295-1936 EMAIL: JD@BDARCHITECTS.COM ENGINEER OF RECORD: TIMMONS GROUP 608 PRESTON AVENUE, SUITE 200 CHARLOTTESVILLE, VA 22903 CONTACT:, CLINT SHIFFLETT, PE TELEPHONE: (434) 962-4337 EMAIL: CLINT. SHIFFLETT@TIMMONS .COM IN 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 AND DETAILS C3.1 EROSION AND SEDIMENT CONTROL PLAN C4.0 SITE PLAN C5.0 DRIVEWAY PROFILE C5.1 S ORM SEWER PROFILES AND CALCULATIONS C6.0 STORMWATER DRAINAGE AREA MAPS 1-1.0 STREAM BUFFER MITIGATION PLAN NUMBER OF SHEETS- 10 APPROVED by throAllb,--A ffl'Yle 0011* �' F -If CLINT W. 41 L ETa f71f7 m E o O rn v N W Lu C)U. U-jO� <-ujj� d�+ rn CD N 0W vei O ) X U)_ �N z � Ln O d' 4-5N N M d � GO J O W ;.o �- r, DATE 12/05/16 DRAWN BY C. SHIFFLETT DESIGNED BY C. SHIFFLETT CHECKED BY C. KOTARSKI SCALE NIA v 0 W U N 0 Q z W C �> o 0 V W z � 0 W 0 _- v >LLJ o �0� u w 20 m o� °J z 02 E �o u -� a o tz 0 ° .2 ZU) ZU) o� :� X o� 0 Q:s Q� 7� � m N X O � O N U N in f6 � O w V �o E� V � O N -0 •� 4 U JOB NO. 0 c 39085 O OV SHEET NO. a o Co. o GENERAL NOTES:LEGEND SITE DATA: ROADS 1. ALL MATERIALS AND CONSTRUCTION SHALL BE IN ACCORDANCE WITH CURRENT VIRGINIA DEPARTMENT OF SEWERSir TRAFFIC STOP BAR TAX MAP PARCEL: 02900-00-00-04500 TRANSPORTATION'S SPECIFICATIONS AND STANDARDS. , 2. PRIOR TO ANY CONSTRUCTION, THE CONTRACTOR SHALL CONSULT THE ENGINEER AND VERIFY THE APPROVAL ® " _-_______._.. EXISTING SANITARY SEWERArt, CLINT STORM PIPE &STRUCTURE NO. ZONING: RA 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 L i DROP INLET & STRUCTURE NO. MAGISTERIAL DISTRICT: WHITE HALL TO BEGINNING ANY CONSTRUCTION WITHIN THE EXISTING STATE MAINTAINED RIGHT OF WAY (INCLUDING WATER 0 ACCESS). CURB PARCEL AREA. 38.34 ACRES 4. VDOT IS TO RECEIVE WRITTEN NOTIFICATION 48 HOURS PRIOR TO COMMENCING WITH INITIAL CONSTRUCTION _.__.__._._....-_;�. ___.........__._______ EXISTING WATER LINE CURB &GUTTER `° ACTIVITIES. SOURCE OF BOUNDARY AND TOPOGRAPHY: BELL LAND SURVEYS LLC 5. THE CONTRACTOR SHALL VERIFY THE ELEVATIONS OF ALL POINTS OF CONNECTION OR PROPOSED WORK TO DRY CURB & GUTTER V W PROPOSED WATER LINE 41+40 30 INDUSTRIAL DR., SUITE B EXISTING CURBS, SANITARY LINES, WATERLINES, ETC, PRIOR TO CONSTRUCTION. LOUISA, VA 23093 6. UPON DISCOVERY OF SOILS THAT ARE UNSUITABLE FOR FOUNDATIONS, SUBGRADES, OR OTHER ROADWAY PROPOSED PAVEMENT �- 6" W PROPOSED VALVE (540) 967-1499 CONSTRUCTION PURPOSES, THE CONTRACTOR SHALL IMMEDIATELY CONTACT THE OWNER. THESE AREAS SHALL T 1 6" W PROPOSED TAPPING SLEEVE E BE EXCAVATED BELOW PLAN GRADE AS DIRECTED BY THE OWNER, BACKFILLED WITH SUITABLE MATERIAL AND PAVED DITCH �, 0 COMPLETED ON 04/30/2015 COMPACTED IN ACCORDANCE WITH CURRENT. WITH VDOT I AND I LD -94 D 121.13. JUTE MESH DITCH - PROPOSED FIRE HYDRANT (COMPLETE) ¢ o 7. ALL STORM SEWER DESIGN AND CONSTRUCTION TO BE IN ACCORDANCE W ( ) > E DATUM: HORIZONTAL: BASED ON NAD83, VIRGINIA STATE GRID SOUTH ZONIE. 8, ALL STORM SEWER PIPE SHALL BE REINFORCED TONGUE AND GROVE CONCRETE PIPE IN ACCORDANCE WITH D 88. CENTERLINE OF DITCH w VERTICAL: BASED ON NAVv ASTM -C-76. PIPE WITHIN THE RIGHT OF WAY SHALL BE MINIMUM CLASS III OR GREATER 1N ACCORDANCE WITH GRADING °- U 'w � CURRENT VDOT STANDARDS AND SPECIFICATIONS. BENCH MARK ¢ OU4 t� 3: BUILDING SETBACKS: 9. IF PRE -CAST UNITS ARE TO BE USED, VDOT SHALL BE NOTIFIED AND THE MANUFACTURER SHALL SUBMIT FRONT: 250 FT FROM EXISTING PUBLIC ROAD DRAWING DETAILS FOR REVIEW. CERTIFICATION AND VDOT STAMP WILL BE REQUIRED ON ALL UNITS. CLEARING LIMITS TC =TOP OF CURB n Lu O o r 150 FT FROM INTERNAL PUBLIC OR PRIVATE ROAD ! i FRONT: 10. ALL CONCRETE SHALL BE A3 -AE (AIR ENTRAINED 3,000 PSI), UNLESS BC = BACK OF CURB Q "'� v 1i 0 Ln Ln z FRONT: 75 FT YARDS, MINIMUM OTHERWISE NOTED. -� R-1 VDOT STANDARD STOP SIGN EP = EDGE OF PAVEMENT w �� -'r' SIDE: 25 FT 11. ALL ENTRANCES ARE TO BE DESIGNED AND CONSTRUCTED IN ACCORDANCE WITH CURRENT VDOT STANDARDS. (D UJ w ~ TW - o C 200 ..__...._- _.. EXISTING CONTOUR BW - BOP OM OF WALL z t- a � z z REAR: 35 FT 12. DESIGN CHANGES, SPECIFIED MATERIALS CHANGES AND/OR FIELD CHANGES FROM THE APPROVED PLANS NEED _ _ TS = TOP OF STAIRS Q � ¢ (vin ® � TO BE RESUBMITTED TO THE ENGINEER PRIOR TO PROCEEDING WITH THE WORK. A LETTER OF EXPLANATION 200 PROPOSED CONTOUR SHALL ACCOMPANY THE REVISED PLANS AND/OR THE DRAINAGE CALCULATIONS, WHICH MUST BE SUBMITTED BS =BOTTOM LI STAIRS a 1zr PROPOSED USES: 1 SINGLE FAMILY HOME AND APPROVED BY THE ENGINEER. NIA -NOT APPLICABLE TO THIS a = v N z F_ I -- AND � + 240.5 EXISTING SPOT ELEVATION%0 1 13. CONTRACTOR SHALL VERIFY LOCATION AND ELEVATION OF ALL UNDERGROUND UTILITIES SHOWN ON PLANS IN PROJECT = �'' < �? z z PARKING: ALL PARKING SHALL BE LOCATED OFF STREET IN DRIVEWAYS AND GARAGES. AREAS OF CONSTRUCTION PRIOR TO STARTING WORK. CONTACT ENGINEER IMMEDIATELY IF LOCATION OR �- TC 240.5 PROPOSED SPOT ELEVATION o NO O Lu PHASING: PROJECT SHALL BE BUILT IN ONE PHASE. 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 PARKING COUNT co _j BUILDING SITES: THIS PARCEL CONTAINS 1 DEVELOPMENT RIGHT AND MAY NOT BE FURTHER DIVIDED. 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. o WATER SUPPLY WATERSHED: THIS SITE LIES WITHIN THE ALBEMARLE COUNTY BUCK MOUNTAIN CREEK WATER SUPPLY 14. CASING SLEEVES SHALL BE PLACED AT ALL ROAD CROSSINGS FOR GAS, POWER, TELEPHONE AND CABLE TV DRIVEWAY CROSS SECTION SERVICE TRUNK LINES. (N/A) STA 10+00 TO 12+75 WATERSHED. 15. THE INSTALLATION OF SEWER, WATER, AND GAS MAINS (INCLUDING SERVICE LATERALS AND SLEEVES) SHALL WETLAND IMPACTS: NONE BE COMPLETED PRIOR TO THE PLACEMENT OF AGGREGATE BASE COURSE. STA 17+50 TO 18+46 16. VDOT & ALBEMARLE COUNTY APPROVAL OF CONSTRUCTION PLANS DOES NOT PRECLUDE THE RIGHT TO WATER SUPPLY AND UTILITIES: UNDER CURRENT COUNTY POLICY, PUBLIC WATER AND/OR SEIWER WILL NOT BE REQUIRE ADDITIONAL FACILITIES AS DEEMED NECESSARY. AVAILABLE TO THIS PROPERTY. ALL LOTS WILL BE SERVED BY INDIVIDUAL DRAIN FIELDS AND yNELLS. 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 ~ STORMWATER: WATER QUALITY REQUIREMENTS AND FLOW ATTENUATION WILL BE ACHIEVED `I-HROUGH AN ONSITE OWNER FOR INSPECTION FOR THE AGGREGATE BASE COURSE(S) 48 HOURS PRIOR TO APPLICATION OF THE " SM -9.5A SURFACE COURSE(S). 2 DETENTION SYSTEM. 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. 6' 6' ¢ M AGRICULTURAL/FOREST DISTRICT: MOORMAN'S RIVER q°f0--•-2°/D --2% 4- ��- � 0 0 19. THE SCHEDULING OF AGGREGATE BASE INSTALLATION AND SUBSEQUENT PAVING ACTIVITIES SHALL 0 FLOOD PLAIN: BASED ON FEMA FLOOD INSURANCE RATE MAP (FIRM), MAP NUMBER 51003C01050, THE PROPERTY SHOWN ACCOMMODATE FORECAST WEATHER CONDITIONS PER SECTION 315 OF THE ROAD AND BRIDGE ' ' 2° ANNUAL CHANCE FLOODPLAIN. SPECIFICATIONS. � �� � DATE LIES IN UNSHADED ZONE X, AREAS DETERMINED TO BE OUTSIDE THE 0. /° 20. THE OWNERS REPRESENTATIVE SHALL HAVE APPROVED THE AGGREGATE BASE COURSE(S) FOR DEPTH, 12/05/16 CONTAINS A BUILDING SITE THAT COMPLIES WITH SECTION 4.2.1 OF THE ALBEMARLE TEMPLATE AND PERFORMED THE REQUIRED FIELD INSPECTION (PROOF ROLL) PRIOR TO PLACEMENT OF ANY COMPACTED SUBGRADE BUILDING SITE NOTE: THIS PARCEL 1' MIN. GRASS DRAWN BY COUNTY ZONING ORDINANCE. SURFACE COURSE(S). CONTACT THE OWNER FOR INSPECTION FOR THE AGGREGATE BASE COURSE(S) 48 HOURS V MIN. GRASS 6" UNTREATED AGGREGATE SHOULDER PRIOR TO APPLICATION OF THE SURFACE COURSE(S). SHOULDER C. SHIFFLETT ALL PROPOSED STORMWATER MANAGEMENT FACILITIES ARE TO BE 21. A GEOTECHNICAL ENGINEER IS TO ASCERTAIN CAUSE AND CERTIFY RECOMMENDED METHOD OF REPAIR FOR OWNED AND MAINTAINED BY THE PARCEL OWNERS ALL PAVEMENT STRUCTURAL FAILURES PRIOR TO STATE ACCEPTANCE. (N/A) 1.5' FORESLOPE DESIGNED BY 22. ALL VEGETATION AND ORGANIC MATERIAL MATERIAL IS TO BE REMOVED FROM THE PROPOSED PAVEMENT ALBEMARLE COUNTY ENGINEERING GENERAL CONSTRUCTION NOTES: LIMITS PRIOR TO CONDITIONING OF THE SUBGRADE. C. SHIFFLETT 23. CERTIFICATION AND SOURCE OF MATERIALS ARE TO BE SUBMITTED TO THE OWNER FOR ALL MATERIALS AND BE ROAD CROSS SECTION CHECKED BY 1. PRIOR TO ANY CONSTRUCTION WITHIN ANY EXISTING PUBLIC RIGHT OF WAY, INCLUDING CONNECTION IN ACCORDANCE WITH THE ROAD AND BRIDGE SPECIFICATIONS, AND ROAD AND BRIDGE STAIN DARDS, ; TO ANY EXISTING ROAD, A PERMIT SHALL BE OBTAINED FROM THE VIRGINIA DEPARTMENT OF 24. APPROVAL OF A DETAILED CONSTRUCTION SEQUENCING/MAINTENANCE OF TRAFFIC NARRATIVE FOR THE WORK No Scale C. KOTARSKI TRANSPORTATION (VDOT). THIS PLAN AS DRAWN MAY NOT ACCURATELY REFLECT THE REQUIREMENTS ZONE IS A PREREQUISITE FOR ISSUANCE OF A LAND USE PERMIT ALLOWING ACCESS TO AND 1CONSTRUCTION IE OCCUR THE REQUIREMENTS OF THE PERMIT SHALL OF THE PERMIT. WHERE ANY DISCREPANCIES 0 Q WITHIN VDOT MAINTAINED RIGHT OF WAY. (N/A) DRIVEWAY CROSS SECTION SCALE GOVERN. 25. GRADE LINES ON PROFILES DENOTE FINISHED GRADE OF CENTER LINE OF ROAD. 2. EROSION AND SILTATION CONTROL MEASURES SHALL BE PROVIDED IN ACCORDANCE WITH THE 26. ALL APPROACH GUTTERS TO SAG INLETS SHALL MAINTAIN A MINIMUM SLOPE OF 0.004 ft./ft. STA 12+75 TO N/A APPROVED EROSION CONTROL PLAN AND MUST BE INSTALLED PRIOR TO ANY CLEARING, GRADING OR 27, WHERE A TYPE "B" NOSE IS SPECIFIED ON AN INLET IN CONJUNCTION WITH ROLL FACE CURB AND GUTTER OR OTHER CONSTRUCTION. CG -7, THERE SHALL BE A 20' TRANSITION ON EACH SIDE OF THE INLET. (N/A) STA 1$+46 TO 199++52.52. 11 3. ALL SLOPES AND DISTURBED AREAS ARE TO BE FERTILIZED, SEEDED AND MULCHED. 28. CONTRACTOR SHALL PROVIDE A SEQUENCE OF CONSTRUCTION/MAINTENANCE OF TRAFFIC PLAN IN 4. THE MAXIMUM ALLOWABLE SLOPE IS 2:1 (HORIZONTAL: VERTICAL). WHERE REASONABLY OBTAINABLE, ACCORDANCE WITH THE STANDARDS AND GUIDELINES CONTAINED IN THE 2011 EDITION OF THE VIRGINIA LESSER SLOPES OF 3:1 OR BETTER ARE TO BE ACHIEVED. WORK AREA PROTECTION MANUEL FOR REVIEW BY THE ENGINEER, SCHOOL OFFICIALS, AND VDOT PRIOR TO 5. PAVED, RIP -RAP OR STABILIZATION MAT LINED DITCH MAY BE REQUIRED WHEN IN THE OPINION OF THE STARTING WORK THAT IMPACTS TRAFFIC ON STATE ROADS. COUNTY ENGINEER, OR DESIGNEE, IT IS DEEMED NECESSARY IN ORDER TO STABILIZE A DRAIN/AGE 29, ALL NEW HANDICAP ACCESSIBLE REQUIREMENTS ON-SITE AND WITHIN ALL NEW STRUCTURES SHALL COMPLY CHANNEL. WITH THE 2006 UNIFORM STATEWIDE BUILDING CODE, 2006 VIRGINIA CONSTRUCTION CODE„ AND ICC/ANSI 6. ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA STANDARDS FOR A117.1-03. THE CONSTRUCTION INDUSTRY (29 CFR PART 1926). 30. THE CLEAR ZONE IS TO BE FREE OF STORED MATERIALS AND PARKED EQUIPMENT. CIL 31. HORIZONTAL AND VERTICAL SIGHT DISTANCES SHALL BE FREE OF PARKED VEHICLES. 2" SM -9.5A BLASTING NOTES: 32. ALL EXCAVATED AREAS WITHIN THE CLEAR ZONE THAT HAVE A DEPTH GREATER THAN 6" SHAILL HAVE A 6:1 STONE WEDGE PLACED AT THE END OF THE DAY 6 6 4% 2% 1. BLASTING SHALL NOT BE PERMITTED ON THIS PROJECT. 33. SOME LOTS MAY EXPERIENCE WATER PRESSURE GREATER THAN 80 PSI. 2 % 4_/ ti's N ALBEMARLE COUNTY STORMWATER MANAGEMENT NOTES: uj �?� `y. COMPACTED SUBGRADE -� 1. ALL DAMS AND CONSTRUCTED FILL TO BE WITHIN 95% OF MAXIMUM DRY DENSITY AND 2% OF' V MIN. GRASS OPTIMUM MOISTURE CONTENT. ALL FILL MATERIAL TO BE APPROVED BY A GEOTECHNICAL ENGIINEER. SHOULDER 6" UNTREATED AGGREGATE 1' MIN. GRASS A GEOTECHNICAL ENGINEER IS TO BE PRESENT DURING CONSTRUCTION OF DAMS. SHOULDER 2. PIPE AND RISER JOINTS ARE TO BE WATERTIGHT WITHIN STORMWATER MANAGEMENT FACILITIIES. 1.5' FORESLOPE uj wm 1--� 1-I 4 < NYLOPLASTDRAIN BASIN WITH DOME GRATE ROAD CROSS SECTION � W No Scale W Z C Ll I PVC PIPE (1;2) INTEGRATED DUCTILIE IRON (SEE SITE PLAN GRATE TO MATCH BA%N O.D. u s FOR PIPE SIZE) �- DRIVEWAY CROSS SECTION �201 a' 3' ®,� Lu z STA 14+50 TO 17+50 � U TOP 2' OF STRUCTURE w SHALL BE PAINTED BLACK Ct7 Lu 2E1 -3 COARSE � Q °° 12" AGGREGATE MN�IMUM PIPE BURIAL Q <�fl DEPTH PER PIPE r (5) ADAPTER ANGLES VARIABLE WANUFACTURER /% 0' - 360° ACCORDING TO PLANS PLAN (3j VARIABLE INVERT HEIGHTS RECOMMENDATION j _ CULVERT / AVAILABLE (ACCORDING TO (MINI. MANUFACTURING DITCH OUTFALL PLANSITAKEOFF) REQ.: SAME AS MIN, SUMP) 0 RECESSED SCREW FINISHED GRADE Z "�� cp;W r _ PLUG CIL �I.j.=(t/. �f+�ll 'j jr 3 VARIABLE SUMP DEPTH 2" SM -9.5A 6"X6" WOOD TIMBIER* J -- ----- -- _ ACCORDING TO PLANS ' Imo- 24" LONG #4 EPDXY / �--'`�/ •%,t (b" MIN. ON 8 24": 10" MIN. ON 30" LLJ 12" AVG. DIAMETER �" BEND (4) VARIOUS TYPES OF INLET& OUTLETADAPTERS' BASED ON MANUFACTURING REQ.) 4% 1.5% 1.5%--- 4°� BROWNSTONE (TYP.) COATED REBAR AVAILABLE: 4"-30"FOR CORRUGATED HDPE / 4" "MNON30"4" -- (ADS N-12/HANCOR DUAL WALL, ADS/HANCOR; �/ / 6" MIN ON 30' N Z SINGLE WALL), N-12 HP, PVC SEWER (EX: SDR 35)„ q PVC DWV (EX: SCH 40), PVC C9001C905„ PVC PIPE CORRUGATED & RIBBED PVC, / `,: COMPACTED SUBGRADE 0 (SEE SITE PLAN r� Z WATERTIGHT JOINT THE BACKFILL MATERIAL SHALL BE CRUSHED STONE OR OTHER 1 MIN. GRASS V M I N. GRASS o *LEVEL SPREADER TIMBER LENGTH (L) CALCULATIONS Y FOR PIPE SIZE) (CORRUGATED HDPE SHOWN)) �,,� GRANULAR MATERIAL MEETING THE REQUIREMENTS OF CLASS SHOULDER 6" UNTREATED AGGREGATE U 8" - 30" OR CLASS II MATERIAL AS DEFINED IN ASTM D2321, BEDDING & SHOULDER L = 13 LF x 1 CFS INFLOW (2 -YR STORM EVENT USED) �.I 9 LEVEL SPREADER A: 13 X 0.8 CFS = 10.4' => 13' MW. REQUIRED COMPBACKACTED EDUNIFOOR UNIFOCE RMLY INAGE ACCORDANCNLETS SHALL E PLACED& - O a o° -Q° n o ° o COMPACTED UNIFORMLY IN ACCORDANCE WITH ASTM 02321. LEVEL SPREADER B: 13 X 1.45 CFS = 18.85' => 19.0' ° ° ° "=_, *1.5' FORESLOP Lw� LEVEL SPREADER C: 13 X 0.34 CFS = 4.42'=> 13' MIN. REQUIRED 45° WYE-' FIRM EARTH o MAINTENANCE NOTE: INSPECTIONS SHALL TAKE PLACE *2.5' FORESLOPE ON DITCH C. ELEVATION ANNUALLY, IDEALLY DURING THE NON -GROWING SEASON- GRAVEL BEDDING 1 - 8"-30"DOMEGRATESSHALLBEDUCTILEIRONPERASTMA536 REFER TO SHEET C4.0 FOR LOCATION. 0 GRADE 70-50-05. = SEDIMENTS SHOULD BE CLEANED OUT OF THE LEVEL a 2 - 8" & 10" DOME GRATES FIT ONTO THE DRAIN BASINS WITH THE USE DO SPREADER FOREBAYS AND FLOW SPLITTERS. D APVCBODOBECY TOP. STOMEE A MANUING FACTURED UREDACC45. JOB NO. 3 -DRAIN BASIN TO BE CUSTOM MFlNUFFlCTURED ACCORDING TO PLAIN THIS PRINT DISCLOSES SUBJECT MATTER IN VtHICH DRAWN BY ESC MATERIAL 3130 VERONA AVE 'a NY'LOPLAST HAS PROPRIETARY RIGHTS. THE RECEIPT BUFORD, GA 34518 DETAILS ,0 RESTRICTIONSRISE. SEE DRAWING NO.70RE NEEDED FOR 0 S11G0 SER 84" DUE TO SHIPPPING c Uig POSSESSION OF THIS PRINT DOES NOT CONFER, DATE 43.25.14 PHN (774) 932.2443 39085 4 - DRAINAGE CONNECTION STUB JOINT TIGHTNESS SHALL CONFORM' TO TECHS GAL INFORMATION LICNSET E USE OFHEREINTDESIGN OR Nylo last' FAX (770) 932.2494 ASTM D3212 FOR CORRUGATED HDPE (ADS N-12IHANCOR DUAL WA6LL), REVISED BY CCA PROJECT NOJNAME www.nyloplast-Us.Com N-12 HP, & PVC SEWER (4" - 24"). REPRODUCTION OF THIS PRINT OR ANY INFORMATION TITLE SHEET NO. M CLEANOUT DETAIL 5 - ADAPTERS CAN BE MOUNTED ON ANY ANGLE OTO 360'. TO DETERMINE CONTAINED HEREIN, OR MANUFACTURE OF ANY DATE 09.05.13 DRAIN BASIN WITH DOME GRATE ROAD CROSS SECTION NScale VEL SPREADER DETAIL MINIMUM ANGLE BETWEEN ADAPTERS SEE DRAWING NO. 7001-1104012. ARTICLE DEN, EXCEPT FOR THE SPECIFIC WRITTEN RE TO 01 QUICK SPEC INSTALLATION DETAIL ci . D 6 - 8" - 30" DOME GRATES HAVE NO LOAD RATING. 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KDTARSKI DRAWN BY 0 1 "=80' 0 � c: E E I v = g""i :F, -< O �UJ=M <-jUw z a U) a z z 0 .0 " M � Z F 2 r w � w � � o to x U) � � w W O O SU Q �i (VN Z � =i`d�y� O FF— Z Z ~ C rn ' O O � N w U U > M � 0- d' oo J � � U) M O U O a N N `j' w —1 -- ! i" N � C) O -- U Co M O O z O Vj DATE C. SHIFFLETT � 12/05116 0 C. KDTARSKI DRAWN BY C. SHIFFLETT .Q N 7 to ��J w 7 U c J N C. N O ..N. C 0 °' w O F- � J7 a z ~� � J N O a 0 N N C N a O d z v- CL u 8 U) N 0 ��0a)Q W 1. j � O >— m �— o Q coQ � W Z Z O Sj a'8 �E- _ W to m to d O C) 0� c 7 ') � Z u) O L i< a) x0 �� W Q- o� Q w N .m-, U N O v. y� �� ,= �° F2 E-0 U t0 O a 's 16a 5 JOB NO. 0 c cn '- 1.Q 39085 U N 0 SHEET NO. Q Uo, !J � - DESIGNED BY C. SHIFFLETT is CHECKED BY C. KDTARSKI SCALE 0 1 "=80' 0 .Q N 7 to ��J w 7 U c J N C. N O ..N. C 0 °' w O F- � J7 a z ~� � J N O a 0 N N C N a O d z v- CL u 8 U) N 0 ��0a)Q W 1. j � O >— m �— o Q coQ � W Z Z O Sj a'8 �E- _ W to m to d O C) 0� c 7 ') � Z u) O L i< a) x0 �� W Q- o� Q w N .m-, U N O v. y� �� ,= �° F2 E-0 U t0 O a 's 16a 5 JOB NO. 0 c cn '- 1.Q 39085 U N 0 SHEET NO. Q Uo, !J � - EROSION AND SEDIMENT CONTROL NARRATIVE PROJECT DESCRIPTION THIS PROJECT INCLUDES THE ADDITION OFA SINGLE FAMILY HOME, DRIVEWAY AND STORMWATER MANAGEMENT FACILITIES. LIMITS OF CLEARING AND GRADING ARE 3.11 ACRES. ADJACENT PROPERTY THESE IMPROVEMENTS ARE BEING MADE WITHIN THE PROPERTY BOUNDARY. THE PROPERTY IS BOUNDED BY RESIDENTIAL PROPERTIES. TO THE NORTH ARE RESIDENTIAL PROPERTIES FOLLOWED BY BUCK MOUNTAIN ROAD AND THE THE SOUTH WEST THERE ARE RESIDENTIAL PROPERTIES FOLLOWED BY RUTHERFORD RD AND FREE UNION RD. EXISTING SITE CONDITIONS THE SITE IS CURRENTLY VACANT OFF-SITE AREAS NO UTILITY CONNECTIONS WILL REQUIRE OFFSITE CONFECTIONS, 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 OTHERt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y 3'* " (OR 3/4 OF DITCH HEIGHT C� 3.20 ROCK CHECK DAM No Scale EO TEMPORARY DIVERSION DIKE No Scale 50' MIN_ A FILTER 6" M CLOTH A EXISTING GROUND SIDE ELEVATION '- 50' MIN. B /- WASH,RACK 10^ 12' MIN. 43 MIN F I VDOT #1 COARSE AGGREGATEB ---- POSITIVE *MUST EXTEND FULL WIDTH OF K DRAINAGE TO INGRESS AND EGRESS OPERATION SEDIMENT TRAPPING DEVICE 5:1 EXISTING PAVEMENT MOUNTABLE BERM (OPTIONAL) 10' MIN. �- EXISTING f PAVEMENT 10' MIN. STONE CONSTRUCTION ENTRANCE No Scale TABLE 3.32-D SITE SPECIFIC SEEDING MIXTURES FOR PIEDMONT AREA TOTAL LBS. PER ACRE MINIMUM CARE LAWN COMMERCIAL OR RESIDENTIAL 175-200 LBS. KENTUCKY 31 OR TURF -TYPE TALL FESCUE 90-100% IMPROVED PERENNIAL RYEGIRASS 0-5% KENTUCKY BLUEGRASS 0-5% GENERAL SLOPE (3:1 OR LESS) KENTUCKY 31 FESCUE RED TOP GRASS SEASONAL NURSE CROP LOW -MAINTENANCE SLOPE (STEEPER THAN 3:1) 1 ILi 1 L L LLI � I I I 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 FENCE AS A TREE PROTECTION FENCE. TP NO SCALE 3'38 TREE PROTECTION FENCING No Scale OUTLET PROTECTION TABLE DISTANCE IS 6' UPSTREAM DOWNSTREAM PIPE/CHANNEL 10 -YR PIPE SIZE APRON WIDTH APRON WIDTH APRON **VDOT #3, #357, OUTFLOW #5, #56 OR #57 (3D0) (W) LENGTH BIO- RETENTION 4.18 CFS 12" 36" 96" 120" OUTFALL HORSESHOE " WHEN 3dc NOTE: ALL PROPOSED OUTLET PROTECTION SHALL BE 12" DIAMETER AVERAGE, BROWNSTONE. PIPE OUTLET CONDITIONS 128 LBS. 2 LBS. SECTION A -A 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 ADDED TO ANY SLOPE OR LOW -MAINTENANCE MIX DURING WARMER SEEDING PERIODS; ADD 10-20 LBS./ACRE IN MIXES. do Cop PERMANENT SEEDING MIX FOR PIEDMONT AREA No Scale SILT FENCE CULVERT INLET IPROTEC TIO�J La 0% -� FILTER KEY IN 6"-9"; RECOMMENDED FOR CLOTH ENTIRE PERIMETER La 0% �- 3do(MIN.) IPE OUTLET TO WELL EFINED+ CHANNEL SECTION A -A FILTER KEY IN 6"-9"; RECOMMENDED FOR CLOTH ENTIRE PERIMETER NOTES: 1. APRON LINING MAY BE RIPRAP, GROUTED RIPRAP, GABION BASKET, OR CONCRETE. 2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED USING PLATES 3.18-3 AND 3.18-4. 3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT LESS THAN 6 3.18 INCHES. OUTLET PROTECTION No Scale PS 3.32 1. SET THE STAKES. a FLC 3. STAPLE FILTER MATERIAL TO STAKES AND EXTEND IT INTO THE TRENCH. 2. EXCAVATE A 4"X 4" TRENCH UPSLOPE ALONG THE LINE OF STAKES. I 4„ 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. FLC bHLEI FLOW INSIALLAIION (PERSPECTIVE VIEW) POINTS A SHOULD BE HIGHER THAN POINT B. ED SF DRAINAGEWAY INSTALLATION 3 05.2 (FRONT ELEVATION) SILT FENCE (W/O WIRE SUPPORT) No Scale r, E O O � v N� a F- E l- tz t LLL o ui O cl BUJ <_j U00 -� - ®N U L N 30�x dQ LL ria S c _ u N > r . m rn 0� M 00 _j a 0 5 (D M 0 o` M 17- 0 0 w > U-1 U z 0 m Z) 0 Z 0 H U U) w 0 z 0 U) > W DATE 12/05/16 DRAWN BY C. SHIFFLETT DESIGNED BY C. SHIFFLETT CHECKED BY C. KOTARSKI SCALE N/A J o n N LU 02 0 Cu 0 Q ula T Oa a) 0 N Z3 z En En UJ ce caz 0 o- 0 7 ®z C) 0 o v ry U L.L W Lu z0 o 2 0 JCL uj <a) 0 r-� o 2i L�1 W ~ a �o �� caI �U) [Lo 0 CK.2 J z Z U) 02 (n 5 0. x m 0 o 0 o o 0-0, 2 m ry�n U a axi o ujy 1 m U y 2 E� [6C N OU -o E M� U O - U � U Q JOB NO. m o N - mt 39083 FU 2u, �r_ 0 0 U SHEET NO. Q o C3= 0 DISTANCE IS 6' MININIUM IF FLOW FLOW IS TOWARD EMBANKMENT **VDOT #3, #357, #5, #56 OR #57 ' ' - P TI'; I J A 1L S ' ?J E � 1(_) i 1 A . I' I f T; U , COARSE AGGREGATE 1.0' 1.5' TO REPLACE SILT FENCE IN HORSESHOE " WHEN HIGH VELOCITY OF ^ FLOW IS EXPECTED - FLOW 2.5' CIP CLASS I RIPRAP CULVERT INLET PROTECTION No Scale La 0% -� FILTER KEY IN 6"-9"; RECOMMENDED FOR CLOTH ENTIRE PERIMETER La 0% �- 3do(MIN.) IPE OUTLET TO WELL EFINED+ CHANNEL SECTION A -A FILTER KEY IN 6"-9"; RECOMMENDED FOR CLOTH ENTIRE PERIMETER NOTES: 1. APRON LINING MAY BE RIPRAP, GROUTED RIPRAP, GABION BASKET, OR CONCRETE. 2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED USING PLATES 3.18-3 AND 3.18-4. 3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT LESS THAN 6 3.18 INCHES. OUTLET PROTECTION No Scale PS 3.32 1. SET THE STAKES. a FLC 3. STAPLE FILTER MATERIAL TO STAKES AND EXTEND IT INTO THE TRENCH. 2. EXCAVATE A 4"X 4" TRENCH UPSLOPE ALONG THE LINE OF STAKES. I 4„ 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. FLC bHLEI FLOW INSIALLAIION (PERSPECTIVE VIEW) POINTS A SHOULD BE HIGHER THAN POINT B. ED SF DRAINAGEWAY INSTALLATION 3 05.2 (FRONT ELEVATION) SILT FENCE (W/O WIRE SUPPORT) No Scale r, E O O � v N� a F- E l- tz t LLL o ui O cl BUJ <_j U00 -� - ®N U L N 30�x dQ LL ria S c _ u N > r . m rn 0� M 00 _j a 0 5 (D M 0 o` M 17- 0 0 w > U-1 U z 0 m Z) 0 Z 0 H U U) w 0 z 0 U) > W DATE 12/05/16 DRAWN BY C. SHIFFLETT DESIGNED BY C. SHIFFLETT CHECKED BY C. KOTARSKI SCALE N/A J o n N LU 02 0 Cu 0 Q ula T Oa a) 0 N Z3 z En En UJ ce caz 0 o- 0 7 ®z C) 0 o v ry U L.L W Lu z0 o 2 0 JCL uj <a) 0 r-� o 2i L�1 W ~ a �o �� caI �U) [Lo 0 CK.2 J z Z U) 02 (n 5 0. x m 0 o 0 o o 0-0, 2 m ry�n U a axi o ujy 1 m U y 2 E� [6C N OU -o E M� U O - U � U Q JOB NO. m o N - mt 39083 FU 2u, �r_ 0 0 U SHEET NO. Q o C3= 0 I - ; / / I I A -, I f I" , - - 11 1 I!, 1� , 11 , / 11 , , I / 11 11 , / /,"', "' 1-1- ... ..... -11.1 trs . "I,) / , I 11 I 11 ',< I ,", ", —,.- , 3, 1 "" - I S,s --l' I , , , / I io/ � ,,, "', /', gp? ,v 11 I ...... - - ,� - i I - 3.02 "lli I'll I %� j-�, /' / i . ,,, "I 1/' / I "I / 'll , /y 1 // sl -- ----- 9, 31;� 7/i e I i I --- b , , ) I / - , Y I / / I 1 f ,-�- 11 I s - 10 I - a / ,,, I ; I "Ill' 10$;1�001',(o)*N*,*A414-*v* I I ! , " / 11 f I , /11 , J � - - --- - I S oii,,',--', A s) -i, I "I 11 I / , / � " "Ill-"", i 11 , i I I / 11! "J" / / . I `--� / "lli I/ , , i " ll'll , "", ll-', - -1 I . �. c:) 0 8 " , f i � SC:Soq OUTLET PROTECTION 3.18 " l / I / I", I / I -I // / '! `" "I ;l I ; "I I , , ) i % I'll "' // 11 f I i � ', �, � / I 11 11 I :) I 1-1 I " / 11 . I i I I 11 ; 1 41 11 (i " -1, , I I ; 8 ,A, , / ; I � ; / i f I / I I I i I `-w -, / 11 , . , "I .1 , li 11 . 11 L, 11 , ; / ? I ; .1-11i , - - j ,, ,- aI/ / jr, / , I/ 11 i 11 / I I Y �;s- 'l --l' ii 1,, -,'I'll, I ,-,-" /--, '-' ", ? / I fA " 4 La. 8 11 I / i . , / ,". I /I / -\$, o, If", I I / ! " 11 , j ..... .. - ... ­­ / I-- -11- " ­­­ I'll, - , I .... . . . 9 w ('�;� u U 8 � " , I I I I I ; I f o i ', -,--- , , = 0 0 , / .11 "I / l/ , I / . I --..I.-- "-L-'-"- , s I - - .... , I 0- ,;d- (�) / ,!" . 11 / ,'. I I 11 11 i . i A& , ---�--- i S— / , / I I / , , I/ / // /" i oll, , , 'l/ I ; I - / , '-, I I I * "VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK" SPECIFICATION NUMBER . I 1 , I : : i ; ll;;.1-1.111, .... 1. '% cj� / , '; ' '/ L, , ,' ' " / - I- , ; li '! 000 ......... I L / / / / / / ', // /I i' / � , , " , 11 / / '-'� 000 , , , I I I I / " /I i/ iL I /�� , / L / 11 11 I/ I/ )l -- - I',, l " 11L l / I/ 'I' , I / r( "ll / ,/ 'i/ / I/ // / I 'I', I /I il 0" I / / , ll :// I -�- I Ir , . Lu �- (N N / ." �L i I . .1 // 'L TS , " . 11, / // l / ,,-/ , , - 11 - "I' ', li 11 11 ,Is 0 C) I / I I ; / (1, A / " 11 I , . , , ", , ,-1� 11 ."I'l, , - I I /,"'i I 11 / , " , , I - I - P "i -,,' ,., I , , 'I', /,"' ; /L /- / f / / / I / -, " l I " . 11 I / , '\- 1, " 1% ""ll-'. - - -1.11, \L '1 , 1, ., 0 C. SHIFFLETT L' ; / . / I 1. ) I / 1, " I \ \ - "L I 0 0 C. KOTARSKI /I il-1/ ; 1, / 'i /' , I ", / , -, / 1, I /I," ", / ,-11 li // /,/- / ,/ / I i / ", - . , I / I "IF - -'--- - L 1, " Dp \ /- L I 1 1 / / / " L' I � " / , " I -�)�L I , 1 71,11, \ � 00 , I I' - I/ / " I" 11" I , I ii / "I / L" ". I , *441. " �'ZCII -111, \ 11 I ## .1 , im / . " (11-1 z ,` 12'r) 1 1 ", "",r",- , " 1 " / . 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I'll", — / ,sl , 7 I - -r' "VI 1. 0 (D ,= / /, r I ," \l/ in 2 L R 9 4�e Table 9,7, Suggested Annual Maintenance Activities for Sioretention z QNT 15' NYLOPLAST BASIN � ,� CLEANOUT TOP: 545.00 .ein�aci Teske * Mcwin u�rass ii#ter stri�ss anti iaEorets;rstil n tori enver �At [east 4 t# a ear RAMP SOIL TO LIP OF < <t . 45 At a S t ws�edinc tyero�ion r ir, tre�h r s�t�t� i, and mui�#s rak#n Twice dur ! t�-r��rr�n season OVERFLOW STRUCTURAE r n � +� Add re#nfOrcemest planting to sTaeintain desired the ve0etation 7/17 MIN SLOPE 3:1 co 0 density CD C) �`! op co moo d �� °! As needed `?S 3" HARDWOOD 0`�" o ,,n r ® o rn Loa !Z a o � � CO , * Remove invasive plants using re�omn�ended control methods � BARK MULCH o CO rn r, o o � � O o LO I- + I - Stabilize the contribs�ti c it ins e area tc revert erosions -�m� + ® + I- + LO + r } o LO"qt �- 0 • Sprang inspection and cleanup 24" BIOFILTER MIX BOTTOM OF BIOFILTER ELEV: 544.50 o z O o z 0 Z Q w O ¢ > rQ- t -Q rQ- �Q �0 ��} z Annually r�s}' > Z Ann # > r 1! 7 I- ' g maintain CA +J inch layer cn w cn _ Supplement eilt 971L6 Ich t rn Z Z Z M z 555 E Lu wcn_ W cn 2 555 Lu 5 20 5 20 5 0 2 - o 5 0 Prune trees and shrubs q :., .;;i.'r?:i'?(•:3:i}isiS Si i:S:rk`i4:: r:{..aF.S: };Si>:;ash;iE:Y3:.t:':F;:i:...•............} :E:..,::':•'d i a O Cance eve 2 to 3 ears ::,.":':•:.:.::::..: - cells and sntlew Darts Y >::::;=:':::> s ' t sn re treatment �; #I rY::.:....:...::: ':::: Remove sediment p ,.� 9 N vi Eve ears }� g 5� .:. .:................:.: .: '.-i'i:�:i•:iii:::i:d:'rii:Pitifi :''r' ,.... ._:: a 7 w Re l Ce the 'rail#{ i B lCt Pr " w STONE 8 S 9 a D `E I PROPOSE w r :v i i $ EXISTING 6" NO. 57 STONE 12" HDPE 3 � S GRADES LUI BOTTOM ELEV: 541.50 515 ``Y 515" 515 _GRADEµ„ 515 550 ,..... ______. __ 3 _...__ Q __.w_..._._.. _ ..._._.. _..,....,__...._.__._._._,.._ ._ _ _.._.............. ..___. _._ ___.......___. EXISt--- o BIORETENTION FACILITY MAINTENANCE ___.....__ ... _ _.__. _ __ __._,.________ .__. __.__ ___.._...__.____.___, ___ ._. .__ _ 550LL VIRGINIA DE STORMWATER DESIGN SPECIFICATION NO. 9 PROPOSED �� :EXISTING i wO ° GRADE FROM Q GRADE 3 GRADE PROPOSED ' a�J L O Ln 4" PERFORATED ° )J1 GRADE ; LU j SCHEDULE40 PVC UNDERDRAIN MIRAFI 140N FILTERW LUFABRIC OR EQUIVALENT. i 545 zs- U TO BE 2'WIDE 51.0__....__... I _ 510 510_,..__,......_. 510 545 ...........__W,,,,,,,,,,,,,,,,,...............�.,.._.,...,..,,.,,.,.,,,.,, d 3 ROOF DRAIN CENTERED ON UNDERDRAIN CULVERT B © > } I DOWNSPOUT ; 24.56' OF 3 3 U" rj O z z 1 12" HDPE 1 ,q r I NOTES 81' 540 5 V V 505„ 505 505 I 505 540 _._. 1...7.7_ .._.. _...__ _ _._._. 24" BIOFILTER MEDIA DEPTH SHALL BE THE MINIMUM DEPTH AFTER A SETTLING _......... __,._................. _ _____.__.,. _._.,,_, _ ___...._,_ _ __..,_......._.._ ._..._...._...........- _.____ _______.._____.. _ _,.______..,..____._..._ _ _ . PERIOD OF THREE DAYS ? CULVERT A j 12 HDPE j 00 o w 25.74' OF a @ 1.10/ ! I- 12" HDPE 1 ' SIZING CALCULATION: @ 0.82% j ,..>.9'• M- a, -_,` DRAINAGE AREA = 0.80 ACRES T(v) = 1,044 CFce 1 500 500 500 535 r MANAGED TURF: 0.63 ACRES 500 535 i i 0 :w. // IMPERVIOUS: 0.17 ACRES 0 50 z PROFILE SCALE PiY.s; FILTER FABRIC Xr-, - ....__,R 1:1 SIDE SLOPE ( ) ( ) DESIGN STORAGE DEPTH: 2' X 0.25 + 0 75' X 0.4 + 0.5' PONDING = 1.30' z T SURFACE AREA REQUIRED: T(v) /DESIGN STORAGE DEPTH ->1,044/1.30'= 803.08SFCHALET STONE SURFACE AREA PROVIDED: 915 SF 9+50 10+00 11+00 9+50 10+00 11+00 9+50 10+010 11+00 12+00 12+50 �' < *; gym. ..`, �� a� z . r 1 -3 DIAMETER N� ;¢ CUL!/ERT A CULVERT B STRC 100 - STRC 102 SCJ Q C7 N � M fr) HORIZ SCALE: 1 "=50' HORIZ SCALE: 1 "=50' HORIZ SCALE: 1 "=50' � � � -1'MIN. VERT SCALE: 1"=5 VERT SCALE: 1"=5 to VERT SCALE: 1"=5 DATE CY-1 12/05/16 GRAVEL DIAPHRAGM DETAIL BIORETENTION FACILITY DETAIL TYPE 1 NOT TO SCALE DRAWN BY NOT TO SCALE DRAINAGE AREA TO CULVERT A / DITCH A = 0.71 AC C. SHIFFLETT (THE MAXIMUM DRAINAGE AREA TO DITCH A WAS CONSIDERED) C= 0.33 DESIGNED BY TC=10 MIN 1(2)= 3.4 IN/HR Q(2) = 0.33(0.71)(3.4) = 0.80 CFS C. SHIFFLETT 1(10) = 4.7 IN/HR Q(10) = 0.33(0.71)(4.7) = 1.10 CFS CHECKED BY V(2) = 2.60 FT/S (ALLOWABLE VELOCITY = 5 FT/S) C. KOTARSKI D(10) = 0.88' �1,5� SCALE r, AS SHOWN HY-8 ANALYSIS RESULTS HY-8 ANALYSIS RESULTS 0.75' GRASS LINED DITCH n = 0.035; MAX. SLOPE = 3.8% Table l- Culvert Summary Table: Culvert B DITCH A CALCULATION uu Total :, Headwater Inlet Con#rolOutlet Control Normal Critical Depth Outlet Depth Outlet Tailwater Discharge Total Culvert Headwater Inlet Control Outlet Control Flow Type Normal Critical Depth p Outlet Depth Tailwater Outlet Tailwater Names Discharge Discharge Elevation (ft) Depth (ft) Depth (ft) EDe th (ft) (ft) (ft) Depth (ft) Velocity(fts) Velocity(fls) (cfs) (cs) 511.65 0.754 0A* 1-S2n 0.504 0.425 0.186 4.329 2.15 2 -Year 0.8 0.8 509.05 0.545 0.0" 1-S2n 0.311 0.37 0.321 0.133 3.569 1.768 2 -Year 2.01 2.01 511.84 0.942 0.569 1-S2n 0.501 0.599 0.519 0.226 4.729 2.412 10 -Year 1.1 1-1 509.15 0.651 0.302 1-S2n 0.368 0.441 0.38 0.16 3.892 1.972 10 -Year Discharge Total Culvert Headwater Inlet Con#rolOutlet Control Normal Critical Depth Outlet Depth Outlet Tailwater Names Discharlge Discharge Elevation (ft) Depth (ft) Depth ft Flow Type Depth ft ft (ft) Depth ft Velocity(ft/s) Velocity(ft/s} (cfs) (cfs) 1.42 1.42 1 511.65 0.754 0A* 1-S2n 0.41 0.504 0.425 0.186 4.329 2.15 2 -Year 2.01 2.01 511.84 0.942 0.569 1-S2n 0.501 0.599 0.519 0.226 4.729 2.412 10 -Year 1 DRAINAGE AREA TO CULVERT B / DITCH B = 0.95 AC ' (THE MAXIMUM DRAINAGE AREA TO DITCH B WAS CONSIDERED) C= 0.35 TC=17 MIN M A IN AREA JRUNOFI (AC) /COEFF. STRUCTURE NUMBER WATER QUALITY CALCULATIONS: SUMMARY FROM RUNOFF REDUCTION SPREAD SHEET (SEE CALC. BOOK POST -DEVELOPMENT LAND COVER-., MANAGED TURF: 2.6 ACRES IMPERVIOUS: 0.42 ACRES REQUIRED REMOVAL: 0.86LB0/R REMOVAL ACHIEVED THROUGH ONSITE BIORETENTION: 0.36 LB/YR CREDITS PURCHASED: 0.50 LB/YR (PROOF OF PURCHASE TO BE PROVIDED) TOTAL REMOVAL: 0.86 LB/YR WATER QUANTITY CALCULATIONS: FLOOD PROTECTION, ANALYSIS POINT 1 (SEE ACREAGES, SURFACE CONDITIONS AND Tc/NADJACENT MAPPING) PRE Q1 4.13 CFS 3.98 CFS O2 9.75 CFS 9.50 CFS Q10 31.08 CFS 31.00 CFS THE ANALYSIS POINT FOR THE PRE AND POST -DEVELOPED DRAINAGE AREA /S LOCATED WHERE THE EXISTING STREAM OUTFALLS ATTHE EASTERN MOST PROPERTY LINE OFTHE PARCEL. ATTHIS POINT, THE DISTURBED AREA /S APPROXIMATELY ONE PERCENT OFTHE TOTAL DRAINAGE AREA. A B|(}RETENT|ONFACILITY |SPROPOSED, AND PROVIDES DETENTION SUCH THAT THE TOTAL POST -DEVELOPED FLOW TOTHE ANALYSIS POINT |SLESS THAN OREQUAL TOPRE-DEVELOPED CONDITIONS FOR THE 1.2.AND 10YEAR STORM EVENTS. THE STREAM CURRENTLY EXPERIENCES LOCALIZED FLOODING FROM 10'YEARSTORM EVENTS. / / HRE ~DEVEOPED DRAINAGE UGE ES � � y4.W/ | ' / . . / / / . / / \ ` � --�-- 7�� Al r�,9 5 0. '3�, DITCH B/ 16.73 ACRES -dMPERVIOUS: 0.25 ACRE V1 S MANAGED TURF: 6.12 ACRES -"WOODED: 10.36 ACRES Al 0.3 SHEET FLOW TOTAL DRAINAGE AREA 240 ACRES (PROPOSED DISTURBED AREA 3.11 ACRES) ZZ 00 SCALE 1"=80' POST DEVELOPED (DETAINED) BIORETENTION FACILITY T 4047 - D E SCALE 1"=8U' � C. SHIFFLETT �12105116 � CHECKED BY ' \40 >_ DRAWN BY n� � '. ' ~~ A1``— -~-~~ow '' / / HRE ~DEVEOPED DRAINAGE UGE ES � � y4.W/ | ' / . . / / / . / / \ ` � --�-- 7�� Al r�,9 5 0. '3�, DITCH B/ 16.73 ACRES -dMPERVIOUS: 0.25 ACRE V1 S MANAGED TURF: 6.12 ACRES -"WOODED: 10.36 ACRES Al 0.3 SHEET FLOW TOTAL DRAINAGE AREA 240 ACRES (PROPOSED DISTURBED AREA 3.11 ACRES) ZZ 00 SCALE 1"=80' POST DEVELOPED (DETAINED) BIORETENTION FACILITY T 4047 - D E DESIGNED BY � C. SHIFFLETT �12105116 � CHECKED BY cm C. KOTARSKISCALEn� >_ DRAWN BY n� ~~ U. Lu o u.i 00 rn ui of ui 01 �DATE DESIGNED BY � C. SHIFFLETT �12105116 � CHECKED BY 0 C. KOTARSKISCALEn� >_ DRAWN BY C.56QFFLETT I" v JOB NO. mot � = DESIGNED BY C. SHIFFLETT CHECKED BY C. KOTARSKISCALEn� n� ~~ I" v JOB NO. mot � = 1 AREA OF DISTURBANCE BUFFER AREA DISTURBED L1.0 SCALE: I"= 50'-0" PLAN DETAIL SEEDLING SPACING SCALE: 1''= 10'-0" L- NEW SEEDLING WITH TUBE AND MAT, TYP. 1 J ..._.... MITIGATION AREA M-1 PROPERTY LINE / r " , i /` ✓' :. ., ,ro �.?, � ,. .............._.. .. ._.....�� m'r t - ,i'.'{�'f� t da§ r au ,mss' �5?5? i 2 a 3 ,r ; / ,!' . ,,. ,✓ am'r� to .:a.u2`?' `"^a:G-''c y f .,,, r f E i. f t •:'/' / .� .'.,. s- - ,;?'" '- .' " r '- '. ?a ,Ef ,:.«r ..,s F.r.f rdyd��: a »� �' t i tj f r a t ( P l":';�.,. 1,YlO _ ,. r f rss i'•a. s.t , ."'.... ., _... . '•`i,s, ox: t.3,� `.o, } ' � l „' _. tt t STf��AM BUFFER , j. rz;3 t zr.s, i ! ! ! J, i y /'.. kyr, ',:"',aF.,: :F �., ✓x5 ar^ai:# "ap, :/ '.aN,z ^=iJ �va ,^'>r 1 r/ f � d : „xxS d � �� li i T� a '(1xJ�a s >s a a s"? ✓,<i � is P a P 7 t 1`, i i ,' i 1 i g s,�s �% j" .. y r � ✓a P r„ykF'a.,:,: i a a, RWSAASEIIENT n= P;f..x? nv i3 a'h, „z.,/ ... �f t .bat , t. _.. - / •.�,., ? z s a'4 K fk%.. rr'`:zst v y f f'-... r f, I�'� t-ax•r I r c + _ • : r / i d f ' ,..';" r r /' i ."5 ✓'x':_ ;r,'5. � s � � 7i ; � i ' ' '' s_ 287s 1 r , . .,, sx.",:`-:�.,• F, -r.:, \ , l f < / / 4 r , ,p`xres nft� E f r , Pf / l ,�' / d ! iJ r qnq:.-. _._ __ - 3 8 a F(a'✓ r t( • fel MITIGATION AREA M2 `r 22,830 SF i ----------- / r - „ 24 a 1 i ' t r f PROPERTY L(NE �. / r ' / r , e f t 1 !'H T �n t � M' PROPOSED MITIGATION AREAS SCALE: 1 "= 100'-0" MITIGATION CALCULATIONS TOTAL DISTURBEDI AREA 13,915 SF (.32 AC) MITIGATION AREA IREQ'D (DIST x 2) 27,830 SF (,64 AC) PROPOSED MITIGATION AREAS M-1 5,000 SF M-2 22,830 SF TOTAL MITIGATION AREA 27,830 SF MITIGATION AREAS: PLANT CALCULATIONS OPTION 1: 600 HS/ ACRE 384 tubes and mats PLANT LIST 55 Acer rubrum 50 Carpinus caroliniana seedling 58 Liriodendron tulipifera 50 Nyssa sylvatica 65 Platanus occidentalis 50 Quercus bicolor 56 Quercus palustris TOTAL PLANTS: 384 12-18" ht. seedling 12 —18" ht. 12-18" ht. seedling 12-18" ht. seedling 12-18" ht. seedling 12-18" ht. seedling 12-18" ht. seedling cn E o O � v N N � �( O > E N E LU :u Uj Q 9y U O ro �LUV0 z O QC:) `" °a- a (3 LU CU �U�x tl7 V) Q n U) _ ¢ Ln c � O NW -a cy 00 J C) LLJ V) CG TO 1 h LU LU U LU - -� W < O N r/n� r�ry) V V DATE 12/05/16 ® DRAWN BY >_ C. SHIFFLETT DESIGNED BY C. SHIFFLETT CHECKED BY C. KOTARSKI SCALE 1 "=30' JOB NO SHEET NO L1.0