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WPO202200021 Plan - VSMP 2023-01-12
Brookville Manoal", STOCKTON CREEK SUBDIVISION GENERAL NOTES OWNER: STOCKTON CREEK LLC 455 SECOND STREET, 57H FLOOR CHARLOTTESOLLE, VA 22902 DEVELOPER. RIVERBEND DEVELOPMENT INC. 455 SECOND STREET, SE SUITE 200 CHARLOTTESOLLE, VA 22902 ATTN: ALAN TAYLOR ENGINEER: COLLINS ENGINEERING 200 GARRETT ST, SUITE K CHARLOTTESOLLE, VA 22902 (434)293-3719 TAX MAP NO.: 1. 06900-00-00-019BO (DB.5504, PG.614) - 3.64 ACRES 2. 06900-00-00-019CO (DB.5504, PG.614) - 7.70 ACRES J. 06900-00-00-019EO (DB.5504, PG.614) - 4.62 ACRES 4. 06900-00-00-019FO (DB.5504, PG.614) - 4.63 ACRES 5. 06900-00-00-019HO (DB.5504, PG.614) - 11.03 ACRES 6. 06900-00-00-019J0 (DB.5504, PG.614) - 8.92 ACRES 7. 06900-00-00-050BO (DB.5504, PG.614) - 8.73 ACRES TOTAL AREA: 49.27 AC. ZONING: RA - RURAL AREA - WITH HAZARD OVERLAY DISTRICT ENTRANCE CORRIDOR OVERLAY DISTRICT, & CRI77CAL SLOPES OVERLAY DISTRICT DEVELOPMENT RIGHTS: IMP 69-19C, IMP 69-19E, IMP 69-19F, & IMP 69-50B ALL HAVE (2) DEVELOPMENT RIGHTS AND MAY BE FURTHER SUBDIVIDED. IMP 69-19H AND IMP 69-19J BOTH HAVE (4) DEVELOPMENT RIGHTS AND MAY BE FURTHER SUBDIVIDED. IMP 69-19B HAS (2) DEVELOPMENT RIGHTS BUT MAY NOT BE FURTHER SUBDIVIDED N THE CURRENT CONFIGURATION. PROPOSED USE. 15 SINGLE FAMILY DETACHED (RURAL RESIDENTIAL) LOTS OPEN SPACE.• NONE (NOT APPLICABLE) RECREATION AREA: NONE (NOT APPLICABLE) CRITICAL SLOPES: CRITICAL SLOPES ARE LOCATED ON THE PROPERTY AND SHOWN ON THE EXIS77NG CONDITIONS PLAN SHEET (SHEET 2). NO CRITICAL SLOPES WILL BE IMPACTED WITH THE PROPOSED ROAD DEVELOPMENT AND SUBDIVISION OF THE PROPERTY. BUILDING HEIGHTS. • MAXIMUM BUILDING HEIGHTS SHALL NOT EXCEED 35 FEET SETBACKS: FRONT MIN. 75' (ALONG EXIS77NG PUBLIC R/W) AND 25' (ALONG INTERNAL PRIVATE & PUBLIC STREETS) NO MAXIMUM SETBACK SIDE: MINIMUM - 25' AND NO MAXIMUM REAR: 35' MINIMUM AND NO MAXIMUM SUBDIVISION STREETS: ROADSIDE DITCH WATERSHED: STOCKTON CREEK WATER SUPPLY WATERSHED AGRICULTURAL/ FORESTAL DISTRICT NONE TOPO & SURVEY. TOPOGRAPHY PROVIDED BY ROGER RAY & ASSOCIATES, JANUARY 2022. HE BOUNDARY LINE INFORMAT7ON IS PROVIDED BY ROGER RAY & ASSOCIATES, AUGUST 2021. INFORMATION FIELD VERIFIED BY COLLINS ENGINEERING IN DECEMBER OF 2021. DATUM: NAD 83 EXISTING VEGETATION. EXISTING FARM LAND WITH CORN CROPS AND PASTURES FOR COWS. TREE VEGETATION OVER A PORT70N OF THE PROPERTY, MAINLY ALONG THE STREAM CORRIDORS. (1) EXIS77NG FARM HOUSE WITH BARNS. LIGHTING. NO LIGH77NG IS PROPOSED PARKING: REQUIRED PARKING: 2 OFFSITE PARKING SPACES PER LOT WITHIN THE DRIVEWAY OF THE RESIDENTIAL LOTS PARKING PROVIDED: 2 OFFSITE PARKING SPACES PER LOT WITHIN THE DRIVEWAY OF THE RESIDENTIAL LOTS NOTE: NO FORMAL ON -STREET PARKING IS PROPOSED ALONG THE PROPOSED STREETS AND CUL-DE-SACS. PHASING: THESE PROPERTIES SHALL BE DEVELOPED WITHIN (1) PHASE BURIAL SITES: NO CEMETERIES WERE FOUND DURING A FIELD INVESTIGATION OF THE SITE STREAM BUFFERS THE STREAM BUFFERS SHOWN HEREON SHALL BE MANAGED IN ACCORDANCE WITH THE ALBEMARLE COUNTY WATER PROTECTION ORDINANCE. SEE SHEET 2 FOR THE LOCA77ON OF THE STREAM BUFFERS. RETAINING WALLS: NO RETAINING WALLS ARE PRPOPOSED. LANDSCAPING: STREET TREES ARE PROPOSED ALONG THE NEIGHBORHOOD STREETS IN ACCORDANCE WITH ALBEMARLE COUNTY LANDSCAPING REQUIREMENTS WITHIN SECT70N 32.7.9 OF THE COUNTY CODE AND IN ACCORDANCE WITH CHAPTER 14. BUILDING SITES: EACH PARCEL CONTAINS A BUILDING SITE THAT COMPLIES WITH SECTION 4.2.1. OF THE ALBEMARLE COUNTY ZONING ORDINANCE. STREAM BUFFERS/FLOODPLAIN. THERE IS A 100-YEAR FLOODPLAIN ON THE PROPERTY, PER FEMA MAPS 51003CO225D, FEBRUARY 4, 2005. STREAM BUFFER EXISTS, AS SHOWN ON SHEET 2. OFFSITE DISTURBANCE: NO OFFSIE DISTURBANCE IS PROPOSED WITH THIS PLAN NO TES: 1) THIS PROPERTY DOES NOT LIE WITHIN AN AGRICULTURAL AND/OR FORESTAL DISTRICT. 2) ONLY (1) DWELLING PER LOT SHALL BE PERMITTED. 3) STREET TREES SHALL BE PROVIDED ALONG ALL THE PUBLIC STREETS 40' O.C. IN ACCORDANCE WITH VDOT AND ALBEMARLE COUNTY STANDARDS. 4) EACH LOT SHALL HAVE AN INDIVIDUAL TRASH CONTAINER WITH PRIVATE TRASH SERVICE FOR PICKUP. 5) THIS PROPERTY IS NOT LOCATED WITHIN A DAM INUNDA77ON ZONE. 6) RETAINING WALLS GREATER THAN 3' IN HEIGHT REQUIRE A SEPARATE BUILDING PERMIT. WALLS EXCEEDING 4' IN HEIGHT REQUIRE A STAMPED ENGINEERED DESIGN. WALLS CROSSING LOT LINES REQUIRE AN EASEMENT. 7) ALL WATER LINES, SEWER LINES, AND FIRE LINES FROM THE MAIN TO THE STRUCTURE MUST HAVE A VISUAL INSPECTION PERFORMED BY THE BUILDING DEPARTMENT. GENERAL BUILDING DEPARTMENT NOTES. 1. WHERE THE FLOOD LEVEL RIMS OF PLUMBING FIXTURES ARE BELOW THE ELEVATION OF THE MANHOLE COVER OF THE NEXT UPSTREAM MANHOLE IN THE PUBLIC SEWER, THE FIXTURES SHALL BE PROTECTED BY A BACKWATER VALVE INSTALLED IN THE BUILDING DRAIN, BRANCH OF THE BUILDING DRAIN OR HORIZONTAL BRANCH SERVING SUCH FIXTURES. PLUMBING FIXTURES HAVING FLOOD LEVEL RIMS ABOVE THE ELEVATION OF THE MANHOLE COVER OF THE NEXT UPSTREAM MANHOLE IN THE PUBLIC SEWER SHALL NOT DISCHARGE THROUGH A BACKWATER VALVE 2. DUE TO REQUIRED DISTANCES FROM LOT LINES AND STRUCTURES AS REQUIRED BY THE NFPA, UNDERGROUND PROPANE TANKS MAY BE PROHIBITED. THE BUILDER/DEVELOPER SHALL PLAN ACCORDINGLY. O WP020220021 WHITEHALL DISTRICT ALBEMARLE COUNTY, VIRGINIA SHE I: LAYOUT ----- --- MEMO ---- LOT 13 \ \ �\ • .\•, ti �'�q fro a �.:.� 4.41 ACRES / :\n LOT 12 \ \ \ \ / . / `. `. - `"': 4�' •• • . •�,_. LOT \ \ / 2.40 ACRES . .•. / 2.70 ACRES \ / \ \ � / �° ` " . � . ` .<'• • �, `• LOT10 A �� 2.22 ACRES 3.90 ACRES � �o V 4•`; / LOT 11 \ 2.74 ACRES \ / J / / r o LOT 23 1.90ACRES LOT 22 / 2.49 ACRES / LOT3A / 2.07 ACRES // / / LOT 21 3.10ACRES / LOT20 3.46ACRES LOT 3B 2.49 ACRES IMPERVIOUS AREAS (WITHIN LOD): PROPOSED ROADWAY 50,089 SF PROPOSED DRI VEWA YS 42,996 SF PROPOSED RESIDENCES 31,200 SF PROPOSED SIDEWALKS 0 SF TOTAL 124,285 SF OVERALL ACREAGES TOTAL ACRES OF LOTS: 46.76 AC (94.97) TOTAL ACRES OF OPEN SPACE: 0.00 AC (30.39) TOTAL ACRES OF ROW 2.51 AC (5.19) 211) / \ \ LOT 15 \ \ \ 2.39 ACRES LOT 16 A 2.25 ACRES °o' •\' " ° a LOT 17 o° •, 6.19ACRES I \ LOT IS 2.05 ACRES I \ LOT 19 II 3.44 ACRES / TRIP GENERATION CALCULATIONS SCALE: 1 "=100' TRIP GENERATION BASED ON ITE TRIP GENERATION MANUAL (10TH EDITION) 15 SINGLE FAMILY DETACHED UNITS (CODE 210) TOTAL ADT: 142 VPD (71 ENTER/ 71 EXIT) TOTAL AM PEAK: 12 VPH (3 ENTER/ 9 EXIT) TOTAL PM PEAK: 15 VPH (10 ENTER/ 5 EXIT) APPROVED by the Albemarle County Community Developpment Department Date 1 /12/2023 611�TiT1I0YIIY3'I1T1T1yA SUBJECT SITE IN --� Ile Manor VICINITY MAP SCALE: 1" = 2000' ROADS LEGEND EXIS77NG CULVERT O O CULVERT Q DROP INLET & S7RUCTURE NO. CURB CURB & GUTTER a PROPOSED PAVEMENT EC-3A DITCH DEPTH OF EC-3A DITCH EC-2 DITCH DEPTH OF EC-2 DITCH T SCOTT /R. CDi,LINS- ww• U Lic. No. 035791,'n � 1/4/23 Blue Rid �O��SSIONAT. F��S Greenway EARTH DITCH DRIVEWAY CULVERT BENCH MARK CLEARING LIMITS z°° EXISTING CONTOUR zoo PROPOSED CONTOUR 240.55 VDOT STANDARD STOP SIGN PROPOSED SPOT ELEVA77ON VSMP PLAN SHEET LIST Sheet Number Sheet Title 1 2 COVER SHEET EXISTING CONDITIONS & DEMOLITION PLAN 3 EROSION & SEDIMENT CONTROL NARRATIVE 4 EROSION & SEDIMENT CONTROL DETAILS 5 EROSION & SEDIMENT CONTROL PLAN - PHASE 1 6 EROSION & SEDIMENT CONTROL PLAN - PHASE II 7 EROSION & SEDIMENT CONTROL PLAN - PHASE III 8 EROSION & SEDIMENT CONTROL DETAILS AND CALCULATIONS 9 PRE -REDEVELOPMENT STORMWATER MANAGEMENT PLAN 10 POST -REDEVELOPMENT STORMWATER MANAGEMENT PLAN 11 STORMWATER MANAGEMENT PLAN DETAILS 12 OVERALL GRADING PLAN 13 DRAINAGE CALCULATIONS z MZZZ UU O O O !A w U U U v' J o Z w a a a a m w w w O ¢ m m m Un w p F ¢ ¢ ¢ rr� Z 0 0 0 V/ Z p ZMn Z Z 2 m W m m m J !n (A (A z o z LU 0 0 0 0 ,LJ w w E ■ L9 7 l N Ul z J J 0 U r ti M M N M N O LU N J J U) LU J Q U i LU Z) U) LU LU IY LU [Y Q O O N IJ w 222207 13 TOTAL SHEETS 1 I I\ � IN L I TH Q I� T� I � )� III 1 \VA vv v \ T.M.69-6C `�- � A � � v v A v / v \ v v v v v vvAvvvv ✓ \ 6I I \\ VA O Q O LOT A A STUART,TAY ORIS ACIK //% %�� V A \�( . GIBBON, EVERETTJR v v v v v v v A v vFIELDS _ v v v v v D:6.5 6 521 I I // `; / I \ �� A! /(( r-- _ v v v v v v A 1.07 ACRES \ V A \ v A \\ \ T \ \ \ \\\ U Lic. No. 035791� / v v i /- / \ v \ v V A v v A v A / SCOTT R. LINS� / D. B 3415/704, 707 P AT v ($ 't � 7- v vv vvv v v v a v I / -�- \ \\ �� \ \ \ \ \ \ \ \ \ / / / / / / �-� - �---- x �� 1/4/23 1.1 v v v v v A v v v V / / /l9 vv v v Z= --=�-� — — --- i O �V A\ . z I \ \\\\< / _ is VAv �vvv�Lvj ��v �y r --__ /�y ///yter//� i-_��LL1W �.. y y� \:•'. v �3�/ SS�,/�A� /FI 69516 v—v VVVA05043"W155. T.M.6919G --- ------_ -- AR T.M. /�MCCLANAtAN;DENREVISED LOT 0 04TW 7.09 �T/ `U FIESTOCON C EK LLC, LDS - -- 2.80ACR€S-'2.63ACRE5 \AVVA\A AA\ \A VA A\V V\ \ \� A�\ \ \v \ v\ \ A -N05'40 3=N�23.27' / j' / / / D.B.5504 PG 61W \�yr v A �. 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Vv v v z -1' / z c� rn v REVISED LOT 7 — OCAT ©N' ST EA�I \. \ / — — \ \\ \ 11.03+/-ACRES -,---- / A V A V� VAA\v A - A / OVERHEAD A \ �r A\AA\ 8•567W �^ v� vvv �� v -vy v \ \I \ �( ---- / / v\ AA\��\ V AV A. v _ v v UTILITY �\ \\ v� C V A \ \ X G STRUCtUR S LINE \ \ \ �\ ,\ � g v A v v - - < < V A / A \V A I BE REM E ( ) 24 v v � � �_-- - � - � �� vv v vv v v v A VA \\ v VDH MONUMENT \ \ v-= b1 ✓'/ /V v-vvv vvv vvv-� --�� `\\ ` \ � \ V � // I I \ � I / _// A v V AA ,•v� \"<V `AF-OU D \ VAVA� \\\vv V`v V N 45411" FENC�TO B I I / - - \ v I ��✓/ s5o A v v vv- KtIVIUVED�TYP.)i o I �' - pw� V AA V A / / /// / TO � V A \ A A V A /Ov v N�3'4'08� % !\ REMOVED ( 930 v \ S2\ V < / / / / /� - v / / / \ \i % A A/ v RT.IVIEDL 15 \ vv vvv - v' �Fvv�v vvv v v �/ l I i / A? ! v v o � o v I I I I / / / ✓� \ \ 1 34 - _ \ \ \ \ \ / / p / / \ 1 E8 A�C I I \ CD cq rn c / \ 11 A �! 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ITS 151 — _ — 3LE�PE _ — / _ \ \ �qII�\\C1AL \ 2220 // - --- ------ EY_R1T— _ bq Opp D -- -- - - ,- _ IVIDNUMENI� \ \ \ �l\ _ — — — — — — — — — — \B'B — \ — — _ - - — — \74— — ND— 80 0 \1 \\ \\ \320 \\ 21-ACRES eb \ \ \�.\�PGCY\ — I — _ — — �•�OL -EOU\ _ \ ` \ \ \ �/ IN 11111 IN SCALE VD Mau F VDH \ \ - - _ - \ \ \(\1 �\J \ \\ \\ \ \ SHEET NO. ICt��VV �NT--- \\ \ \ \\ \ \ 2 \ j FQUNI i / MONUMENT \ \ \ \ 1992 EROSION & SEDIMENT CONTROL MEASURES: STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. STRUCTURAL PRACTICES USED IN THIS SECTION CONSIST OF THE FOLLOWING. 301 SAFETY FENCE., A PROTECTIVE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE. TO PROHIBIT THE UNDESIRABLE USE OF AN EROSION CONTROL MEASURE BY THE PUBLIC. APPLICABLE TO ANY CONTROL MEASURE OR SERIES OF MEASURES WHICH CAN BE CONSIDERED UNSAFE BY VIRTUE OF POTEN77AL ACCESS BY THE PUBLIC. 302 CONSTRUCTION ENTRANCE: A STABILIZED PAVED CONSTRUCTION ENTRANCE WITH A WASH RACK LOCATED AT POINTS OF VEHICULAR INGRESS AND EGRESS ON A CONSTRUCTION SITE. TO REDUCE 7HE AMOUNT OF MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. CONSTRUCTION ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE THE AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ROADWAYS 3.05 SILT FENCE A TEMPORARY SEDIMENT BARRIER CONSISTING OF A SYNTHETIC FILTER FABRIC STRETCHED ACROSS AND ATTACHED TO SUPPORTING POSTS AND ENTRENCHED, TO INTERCEPT AND DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION OPERATIONS /N ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE, AND TO DECREASE THE VELOCITY OF SHEET FLOWS AND LOW -TO -MODERATE LEVEL CHANNEL FLOWS. THE SILT FENCE BARRIERS SHALL BE INSTALLED DOWN SLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT LADEN RUNOFF FROM SHEET FLOW AS INDICATED. THEY SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED IN ACCORDANCE WI7H THE VIRGINIA EROSION & SEDIMENT CON7ROL HANDBOOK (VESCH). 3.07 STORM DRAIN INLET PROTECTION: A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM DRAIN DROP INLET OR CURB INLET. TO PREVENT SEDIMENT FROM ENTERING STORM DRAINAGE SYSTEMS PRIOR TO PERMANENT STABILIZAT70N OF THE DISTURBED AREA. INLET PROTECTION APPLIES WHERE STORM DRAIN INLETS ARE TO BE MADE OPERATIONAL BEFORE PERMANENT STABILIZA7ON OF THE CORRESPONDING DISTURBED DRAINAGE AREA. 3.08 CULVERT INLET PROTECTION: A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM CULVERT. TO PREVENT SEDIMENT FROM ENTERING STORM CULVERTS PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA. INLET PROTECTION APPLIES WHERE STORM CULVERTS ARE EXIS77NG OR TO BE MADE OPERATIONAL BEFORE PERMANENT STABILIZATION OF THE CORRESPONDING DRAINAGE AREA. 3.09 TEMPORARY DIVERSION DIKE., A TEMPORARY RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA. TO DIVERT STORM RUNOFF FROM UPSLOPE DRAINAGE AREAS AWAY FROM UNPROTECTED DISTURBED AREAS AND SLOPES TO A STABILIZED OUTLET. TO DIVERT SEDIMENT -LADEN RUNOFF FROM A DISTURBED AREA TO A SEDIMENT -TRAPPING FACILITY SUCH AS A SEDIMENT TRAP OR SEDIMENT BASIN. USE WHEREVER STORMWATER RUNOFF MUST BE TEMPORARILY DIVERTED TO PROTECT DISTURBED AREAS AND SLOPES OR RETAIN SEDIMENT ON SITE DURING CONSTRUCTION. THESE STRUCTURES GENERALLY HAVE A LIFE EXPECTANCY OF 18 MONTHS OR LESS, WHICH CAN BE PROLONGED WITH PROPER MAINTENANCE. 3.12 DIVERSION., A CHANNEL CONSTRUCTED ACROSS A SLOPE WITH A SUPPOR77NG EARTHEN RIDGE ON THE LOWER SIDE. TO REDUCE SLOPE LENGTH AND TO INTERCEPT AND DIVERT STORMWATER RUNOFF TO STABILIZED OUTLETS AT NON -EROSIVE VELOCITIES. APPLIES WHERE RUNOFF FROM AREAS OF HIGHER ELEVATION MAY DAMAGE PROPERTY, CAUSE EROSION, OR INTERFERE WITH THE ESTABLISHMENT OF VEGETATION ON LOWER AREAS, WHERE SURFACE AND/OR SHALLOW SUBSURFACE FLOW IS DAMAGING SLOPING UPLAND, AND WHERE 7HE SLOPE LENGTH NEEDS TO BE REDUCED TO MINIMIZE SOIL LOSS. 3.13 TEMPORARY SEDIMENT TRAP. A TEMPORARY PONDING AREA FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT WITH A STONE OUTLET. TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS LONG ENOUGH TO ALLOW THE MAJORITY OF THE SEDIMENT TO SETTLE OUT. USE BELOW DISTURBED AREAS WHERE THE TOTAL CONTRIBUTING DRAINAGE AREA IS LESS THAN 3 ACRES, WHERE THE SEDIMENT TRAP WILL BE USED NO LONGER THAN 18 MONTHS, AND IT MAY BE CONSTRUCTED EITHER INDEPENDENTLY OR IN CONJUNCT70N WITH A TEMPORARY DIVERSION DIKE. 3.14 TEMPORARY SEDIMENT BASIN: A TEMPORARY BARRIER OR DAM WITH A CONTROLLED STORMWATER RELEASE STRUCTURE FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. TO DETAIL SEDIMENT -LADEN RUNOFF FROM DISTURBED AREAS IN "WET" AND `DRY" STORAGE LONG ENOUGH FOR THE MAJORITY OF 7HE SEDIMENT TO SETTLE OUT. APPLIES BELOW DISTURBED AREAS WHERE THE TOTAL CON7RIBU77NG DRAINAGE AREA IS EQUAL TO OR GREATER THAN THREE ACRES. THERE MUST BE SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY FOR THE CONSTRUCTION OF A TEMPORARY IMPOUNDMENT 3.18 OUTLET PROTECTION: STRUCTURALLY LINED APRONS OR OTHER ACCEPTABLE ENERGY DISSIPATING DEVICES PLACED AT THE OUTLETS OF PIPES OR PAVED CHANNEL SECTIONS. TO PREVENT SCOUR AT STORMWATER OUTLETS, TO PROTECT THE OUTLET STRUCTURE, AND TO MINIMIZE THE P07EN77AL FOR DOWNSTREAM EROSION BY REDUCING THE VELOCITY AND ENERGY OF CONCENTRATED STORMWATER FLOWS. APPLICABLE TO THE OUTLETS OF ALL PIPES AND ENGINEERED CHANNEL SECTIONS. 3.19 RIPRAP: A PERMANENT EROSION -RESISTANT GROUND COVER OF LARGE, LOOSE, ANGULAR STONE WITH FILTER FABRIC OR GRANULAR UNDERLINING. TO PROTECT THE SOIL FROM THE EROSIVE FORCES OF CONCENTRATED RUNOFF, SLOW THE VELOCITY OF CONCENTRATED RUNOFF WHILE ENHANCING THE POTENTIAL FOR INFILTRATION, AND TO STABILIZE SLOPES WITH SEEPAGE PROBLEMS, AND/OR NON -COHESIVE SOILS. USE WHEREVER SOIL AND WATER INTERFACE AND THE SOIL COND177ONS, WATER TURBULENCE AND VELOCITY, EXPECTED VEGETA77VE COVER, ETC., ARE SUCH THAT THE SOIL MAY ERODE UNDER THE DESIGN FLOW CONDITIONS. 3.20 ROCK CHECK DAMS: SMALL TEMPORARY STONE DAMS CONSTRUCTED ACROSS A SWALE OR DRAINAGE DITCH. TO REDUCE THE VELOCITY OF CONCENTRATED STORMWATER FLOWS, THEREBY REDUCING EROSION OF THE SWALE OR DITCH. THIS PRACTICE ALSO TRAPS SEDIMENT GENERATED FROM ADJACENT AREAS OR THE DITCH ITSELF, MAINLY BY PONDING OF THE STORMWATER RUNOFF. THIS PRACTICE, UTILIZING A COMBINATION OF STONE SIZES, IS LIMITED TO USE IN SMALL OPEN CHANNELS WHICH DRAIN 10 ACRES OR LESS. 3.31 TEMPORARY SEEDING. - THE ESTABLISHMENT OF A TEMPORARY VEGETA77VE COVER ON DISTURBED AREAS BY SEEDING WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE FOR A PERIOD OF MORE THAN 30 DAYS. TO REDUCE DAMAGE FROM SEDIMENT AND RUNOFF TO DOWNSTREAM OR OFF -SITE AREAS, AND TO PROVIDE PROTECTION TO BARE SOILS EXPOSED DURING CONSTRUCTION UNTIL PERMANENT VEGETA77ON OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED. 3.32 PERMANENT STABILIZATION: THE ESTABLISHMENT OF PERENNIAL VEGETA77VE COVER ON DISTURBED AREAS BY PLAN77NG SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS. TO PERMANENTLY STABILIZE DISTURBED AREAS /N A MANNER THAT /S ECONOMICAL, ADAPTABLE TO SITE CONDITIONS, AND ALLOWS SELECTION OF 7HE MOST APPROPRIATE PLANT MATERIALS. TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONSTRUCTION ACTIVITIES, ALL AREAS WILL RECEIVE A PERMANENT VEGETA77VE COVER. 3.35 MULCHING. APPLICATION OF PLANT RESIDUES OR OTHER SUITABLE MATERIALS TO THE SOIL SURFACE. TO PREVENT EROSION BY PR07ECTING THE SOIL SURFACE FROM RAINDROP IMPACT AND REDUCING THE VELOCITY OF OVERLAND FLOW. TO FOSTER THE GROWTH OF VEGETATION BY INCREASING AVAILABLE M0IS77JRE AND PROVIDING INSULATION AGAINST EXTREME HEAT AND COLD. AREAS WHICH HAVE BEEN PERMANENTLY SEEDED SHOULD BE MULCHED IMMEDIATELY FOLLOWING SEEDING. AREAS WHICH CANNOT BE SEEDED BECAUSE OF THE SEASON SHOULD BE MULCHED USING ORGANIC MULCH. MULCH MAY BE USED TOGETHER WITH PLANTINGS OF TREES SHRUBS OR CERTAIN GROUND COVERS WHICH DO NOT PROVIDE ADEQUATE SOIL STABILIZATION BY THEMSELVES, CAN BE USED IN CON✓UNC77ON WITH TEMPORARY SEEDING. 3.37 TREES SHRUBS VINES & GROUND COVERS: STABILIZING DISTURBED AREAS BY ESTABLISHING VEGETA77VE COVER WITH TREES, SHRUBS, VINES, OR GROUND COVERS. TO AID /N STABILIZING SOIL IN AREAS WHERE VEGETATION OVER THAN TURF /S PREFERRED, TO PROVIDE FOOD AND SHELTER FOR WILDLIFE WHERE WILDLIFE HABITAT /S DESIRABLE. APPLIES IN AREAS WHERE TURF ESTABLISHMENT IS DIFFICULT ON STEEP OR ROCKY SLOPES WHERE MOWING IS NOT FEASIBLE WHERE ORNAMENTALS ARE DESIRABLE FOR LANDSCAPING PURPOSES, AND WHERE WOODY PLANTS ARE DESIRABLE FOR SOIL CONSERVATION, OR TO ESTABLISH WILDLIFE HABITAT. 3.36 BLANKET MATTING: INSTALLATION OF A PROTEC77VE COVERING OR A SOIL STABILIZATION MAT ON A PREPARED PLAN77NG AREA OF A STEEP SLOPE OR CHANNEL TO AID IN THE CONTROLLING EROSION ON CRITICAL AREAS. 3.38 TREE PRESERVATION AND PROTECTION: PROTECTION OF DESIRABLE TREES FROM MECHANICAL OR OTHER INJURY DURING LAND DISTURBING AND CONSTRUCTION AC7714TY: TO ENSURE THE SURVIVAL OF DESIRABLE TREES WHERE THEY WILL BE EFFECTIVE FOR EROSION AND SEDIMENT CONTROL, WATERSHED PROTECTION, LANDSCAPE BEAUTIFICATION, DUST AND POLLUT70N CONTROL, NOISE REDUCTION, SHADE AND OTHER EN14RONMENTAL BENEFITS WHILE THE LAND IS BEING CONVERTED FROM FOREST TO URBAN -TYPE USES. APPLIES IN TREE -INHABITED AREAS SUBJECT TO LAND DISTURBING ACTIVITIES. 3.39 DUST CONTROL: REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLITION AND CONSTRUCTION ACTIVITIES. TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT HEALTH HAZARDS, TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE. DUST CONTROL MEASURES SHALL BE EMPLOYED TO PREVENT SURFACE AND AIR MOVEMENT OF DUST DURING CONSTRUCTION. MEASURES EMPLOYED SHALL BE IN ACCORDANCE WI7H THE VESCH. 3.32 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 a Tall Fescue kY YP 95-100 0 % - Improved Perennial Ryegrass 0.5% - Kentucky Bluegrass 0-5% Hieh-Maintenance Lawn 200-250lbs. - Kentucky 31 or Turf -Type Tall Fescue 100% General Slope (3:1 or less) - Kentucky 31 Fescue 128 lbs. - Red Top Grass 2lbs. - Seasonal Nurse Crop ' 20 lbs. 150 lbs. Low -Maintenance SloN (Steeper than 3:1) - Kentucky 31 Fescue 108 lbs. - Red Top Grass 2 lbs- - Seasonal Nurse Crop ' 20 lbs. - Crownvetch " 20 Ibs, 150 tbs. ' Use seasonal nurse crop in accordance with seeding dates as stated below: April ....... . Annual Rye February16th through A ............. P Y 8h May 1st through August 15th ..................... Foxtail Millet August 16th through October ...................... Annual Rye November through February 15th................... Winter Rye a' 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. TABLE 331•A LIMING REQUIREMENTS FOR TEMPORARY SITES Recommended Application PH Test of Agricultural Limestone below 42 3 tons per acre 4.2 to 5.2 2 tons per acre 52 to 6 1 ton per acre TABLE 3JI-B ACCEMABIE TEMPORARY SEEDING PIANT MATERIWI -QUICK REFERENCE FOR ALL REGIONS' Rate Plan'nr D Il Sce6. b�/:.l,) Sept. 1- Feb. 15 50/50 Mu d Mnual Ryeg fulium multi-Rnmm) a 50-IW Cereal (Winter) Rye (G J cS T.lyl Feb. 16 - Apr. 30 Annual Ryegrau IA - im (Wiu, mom-mmn,m) May 1 - Aug 31 German Millet 50 GENERAL SLOPE (3:1 OR LESS) TOTAL LBS PER ACRE KENTUCKY 31 FESCUE 128 LBS RED TOP GRASS 2 LBS SEASONAL NURSE CROP 20 LBS 150 LBS SEASONAL NURSE CROP FEBRUARY 16 THROUGH APRIL ANNUAL RYE MAY 1 THROUGH AUGUST 15 FOXTAIL MILLET AUGUST 16 THROUGH OCTOBER ANNUAL RYE NOVEMBER THROUGH FEBRUARY 15 WINTER RYE NOTES: 1. LIME AND FERTILIZER NEEDS SHALL BE DETERMINED BY SOIL TESTS AND APPLIED IN ACCORDANCE WITH VESCH STD. 3.32. 2. SEEDINGS TO BE MULCHED IMMEDIATELY UPON COMPLETION OF SEED APPLICATION, IN ACCORDANCE W1 VESCH STD 3.35. PERMANENT SEEDING SCHEDULE PS NO SCALE (STD. & SPEC. 3.32 OF VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK, 3RD ED.) EROSION CONTROL NOTES ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTCES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATI0NS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. ES-2., 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. ES-3.•ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. ES-4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. ES-5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING BUT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. ES-6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTAT70N AS DETERMINED BY THE PLAN APPROVING AUTHORITY. ES-7.•ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. ES-8.-DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED WATER FILTERING DEVICE. ES-9: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. General construction notes for Erosion and Sediment Control plans 1. The plan approving authority must be notified one week prior to the 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 rainfall event. Any necessary repairs or cleanup to maintain the effectiveness of the erosion control devices shall be made immediately. 10. All fill material to be taken from an approved, designated borrow area 11. All waste materials shall be taken to an approved waste area. Earth fill shall be inert materials only,free of roots stumps, wood rubbish and other debris. P , 12. Borrow or waste areas are to be reclaimed within 7 days of completion per Zoning Ordinance section 5.1.28. 13. All inert materials shall be transported in compliance with section 13-301 of the Code of Albemarle. 14. Borrow, fill or waste activity involving industrial -type power equipment shall be limited to the hours of 7:00am to 9:00pm. 15. Borrow, fill or waste activity shall be conducted in a safe manner than maintains lateral support, or order to minimize any hazard to persons, physical damage to adjacent land and improvements, and damage to any public street because o slides, sinking, or collapse. 16. The developer shall reserve the right to install, maintain, remove or convert to permanent stormwater management facilities where applicable all erosion control measures required g aPP 9 by this plan regardless of the sale of any lot, unit, building or other portion of the property. 17. Temporary stabilization shall be temporary seeding and mulching. Seeding is to be at 75 lbs/acre, and in the months of September to February to consist a 50150 mix of Annual 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 approved by the County erosion control inspector. 18. Permanent stabilization shall be lime and fertilizer, permanent seeding, and mulch. , Pe g, Agricultural grade limestone shall be applied at 90lbs/1000sf, incorporated into the to 4-6 g g PP � P 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%G 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 approved by the County erosion control inspector. 19. Maintenance: All measures are to be inspected weekly and after each rainfall. Any damage or clogging to structural measures is to be repair immediately. Silt traps are to be cleaned when 50%G of the wet storage volume is filled with sediment. All seeded areas are to be reseeded when necessaryto achieve a good stand of ass. Silt fence and diversion dykes g grass. Y which are collecting sediment to half their height must be cleaned and repaired immediately. 20. All temporary erosion and sediment control measures are to be removed within 30 days of final site stabilization, when measures are no longer needed, subject to approval by the County erosion control inspector. 21. This plan shall be void if the owner does not obtain a permit within 1 year of the date of approval. (Water Protection Ordinance section 17-204G.) 22. Permanent vegetation shall be installed on all denuded areas within nine (9) months after the date the land disturbing activity commenced. (Water Protection Ordinance section 17- 207B) TEMPORARY SEEDING: ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR EXTENDED PERIODS OF TIME SHALL BE SEEDED WITH FAST GERMINATING TEMPORARY VEGETATION IMMEDIATELY FOLLOWING GRADING. SELECT70N OF THE SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR AND WILL BE APPLIED TO DISTURBED ARES THAT WILL NOT BE BROUGHT TO FINAL GRADE WITHIN 30 DAYS PLANTS SHOULD BE SELECTED APPROPRIATE TO THE SEASON AND SITE CONDITIONS FROM TABLES 3.31B AND 3.31C. NOTE THAT TABLE 3.31B PRESENTS PLANTS WHICH CAN BE USED WITHOUT EXTENSIVE EVALUAT70N OF SITE CONDITIONS, • TABLE 331C PRESENTS MORE IN-DEPTH INFORMATION ON THE PLANT MATERIALS. TO CONTROL EROSION ON BARE SOIL SURFACES, PLANTS MUST BE ABLE TO GERMINATE AND GROW. SEEDBED PREPARATION IS ESSENTIAL. AN EVALUAT70N SHOULD BE CONDUCTED TO DETERMINE IF LIME IS NECESSARY FOR TEMPORARY SEEDING. TABLE 331A MAY BE USED TO DETERMINE THE ACTUAL NEED ALONG WITH SUGGESTED APPLICATION RA TES: FERTILIZER SHALL BE APPLIED AS 600 LBS/ACRE OF 10-20-10 (14 LBS/1,000 SQ. FT.) OR EQUIVALENT NUTRIENTS. LIME AND FERTILIZER SHALL BE INCORPORATED INTO THE TOP 2 TO 4 INCHES OF THE SOIL IF POSSIBLE. IF THE AREA HAS BEEN RECENTLY LOOSENED OR DISTURBED, NO FURTHER ROUGHENING IS REQUIRED. WHEN THE AREA IS COMPACTED, CRUSTED, OR HARDENED, THE SOIL SHALL BE LOOSENED BY DISCING, RAKING, HARROWING, OR OTHER ACCEPTABLE MEANS. TRACKING WITH BULLDOZER CLEATS IS MOST EFFECTIVE ON SANDY SOILS. THIS PRAC77CE OFTEN CAUSES UNDUE COMPACT70N OF THE SOIL SURFACE ESPECIALLY IN CLAYEY SOILS, AND DOES NOT AID PLANT GROWTH AS EFFECTIVELY AS OTHER METHODS OF SURFACE ROUGHENING. SEED SHALL BE EVENLY APPLIED WITH A BROADCAST SEEDER, DRILL, CULT7PACKER SEEDER OR HYDROSEEDER. SMALL GRAINS SHALL BE PLANTED NO MORE THAN 1i INCHES DEEP. SMALL SEEDS, SUCH AS KEN77JCKY BLUEGRASS, SHOULD BE PLANTED NO MORE THAN 4 INCH DEEP. OTHER GRASSES AND LEGUMES SHOULD BE PLANTED FROM 4 INCH TO J DEEP. SEEDINGS MADE IN FALL FOR WINTER COVER AND DURING HOT AND DRY SUMMER MONTHS SHALL BE MULCHED ACCORDING TO MULCHING, STD. & SPEC. 335, EXCEPT THAT HYDROMULCHES (FIBER MULCH) WILL NOT BE CONSIDERED ADEQUATE. STRAW MULCH SHOULD BE USED DURING THESE PERIODS. AREAS WHICH FAIL TO ESTABLISH VEGETATIVE COVER ADEQUATE TO PREVENT RILL EROSION WILL BE RE -SEEDED AS SOON AS SUCH AREAS ARE IDENTIFIED. DESCRIPTION OTRFT EROSION & SEDIMENT EROSION CONTROL NOTES &� NARRATIVE CONTROL MEASURES: THE POURPOSE OF THIS LAND DISTURBING ACTIVITY IS TO GRADE THE STOCKTON CREEK SITE FOR A EROSION AND SEDIMENT CONTROL MEASURES: RESIDENTIAL DEVELOPMENT. THE TOTAL AREA TO BE DISTURBED WITH THIS PLAN IS 16.93 ACRES. IT IS ANTICIPATED TO USE CONSTRUCTION ENTRANCES, DIVERSION DIKES, EXISTING SEDIMENT EXISTING SITE CONDITIONS: BASINS, AND SILT FENCES WILL BE INSTALLED TO CONTROL SURFACE DRAINAGE. TEMPORARY MOST OF THIS SITE IS FARMLAND WITH A FEW AREAS OF TREES SEPARATING VARIOUS AREAS OF SEEDING WILL BE USED IMMEDIATELY FOLLOWING ALL LAND DISTURBANCE ACTIVITIES CLEARED PLOTS OF FARMLAND. OVERALL THE DISTURBED AREA SLOPES SOUTH TOWARDS ROUTE 151. TEMPORARY STOCKPILE AREAS WILL BE MAINTAINED FROM TOPSOIL THAT WILL BE STRIPPED THE SITE IS LOCATED TO THE NORTH OF CRITZERS SHOP ROAD (ROUTE 151) AND WEST OF ROUTE FROM AREAS TO BE GRADED AND STORED FOR LATER SPREADING. STOCKPILE LOCATIONS SHALL 250. THE MAJORITY OF THE SITE DRAINS TOWARDS THE EXISTING CULVERT THAT CROSSES ROUTE 151. BE ON SITE AND SHALL BE STABILIZED WITH A TEMPORARY VEGETATIVE COVER. PERMANENT ADJACENT AREAS: SEEDING WILL BE PERFORMED FOR ALL AREAS WHICH WILL NO LONGER BE EXCAVATED AND THIS SITE IS BORDERED TO THE EAST BY ROUTE 250 AND TO THE SOUTH BY CRITZERS SHOP ROAD. WHERE CONSTRUCTION ACTIVITES HAVE CEASED. PERMANENT SEEDING SHALL ALSO BE GOODLOE LANE IS ALONG THE WEST AND NORTHWEST BORDER OF THE SITE AND OLD TURNPIKE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR A YEAR OR MORE. ROAD EXISTS TO THE NORTH OF THE SITE SELECTION OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. OFFSITE LAND DISTURBANCE. - TEMPORARY SEEDING WILL BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT IMPROVEMENTS TO BE MADE WITHIN THE VDOT RIGHT-OF-WAY ALONG GOODLOE LANE. DORMANT FOR MORE THAN SEVEN DAYS. THESE AREAS SHALL BE SEEDED WITH FAST CRITICAL AREAS. GERMINATING VEGETATION IMMEDIATELY FOLLOWING GRADING OF ]HOSE AREAS. SELECTION OF SILT FENCE SHALL BE MAINTAINED ALONG THE LIMITS OF DISTURBANCE AS SHOWN ON THE PLAN TO SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. THE EAST NORTH, AND SOUTH OF THE SITE TO PROTECT THE ADJACENT PROPERTIES. CONTRACTOR CONSTRUCTION ENTRANCE: SHALL ENSURE THAT ALL SEDIMENT MAINTENANCE CONTROLS ARE ALONG GOODLOE ROAD TO ENSURE THAT NO SEDIMENT LEAVES THE SITE AND DRAINS ONTO THE ROAD. A STABILIZED PAVED CONSTRUCTION ENTRANCE WITH A WASH RACK LOCATED AT POINTS OF SOILS: VEHICULAR INGRESS AND EGRESS ON A CONSTRUCTION SITE TO REDUCE THE AMOUNT OF MUD SOILS MAP IS INCORPORATED INTO EROSION CONTROL PLAN PHASE l W177-1 SOILS DATA INCLUDED TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. W1TH THIS NARRATIVE. CONSTRUCTION ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE THE SEQUENCE OF CONSTRUCTION: AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ROADWAYS. PHASE l: SILT FENCE. 1. NOTIFY ALBEMARLE COUNTY TO SCHEDULE A PRE -CONSTRUCTION MEETING AS REQUIRED. A TEMPORARY SEDIMENT BARRIER CONSISTING OF A SYNTHETIC FILTER FABRIC STRETCHED 2. PRIOR TO DISTURBANCES, THE LIMITS OF DISTURBANCE SHALL BE FLAGGED AND THE TREE ACROSS AND ATTACHED r0 SUPPORTING POSTS AND ENTRENCHED. TO INTERCEPT AND DETAIN PROTECTION FENCING SHALL BE INSTALLED. SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION OPERA770NS IN J. NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTION PROCESS ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE. TO DECREASE THE VELOCITY OF SHEET WITHOUT THE APPROVAL FROM THE INSPECTOR ON THE PROJECT. 4. THE PROPOSED CONSTRUCTION ENTRANCE WITH WASH AREAS SHALL BE INSTALLED AS SHOWN ON FLOWS AND LOW -TO -MODERATE LEVEL CHANNEL FLOWS. THE SILT FENCE BARRIERS SHALL BE THE PLANS. THE CONSTRUCTION ENTRANCE TO BE INSTALLED WHERE CONSTRUCTION VEHICLE INSTALLED DOWN SLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT LADEN RUNOFF ROUTES INTERSECT PAVED PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE FROM SHEET FLOW AS INDICATED. THEY SHALL BE INSPECTED IMMEDIATELY AFTER EACH TRANSPORT OF SEDIMENT BY (VEHICULAR) TRACKING ONTO THE PAVED SURFACE. WHERE RAINFALL AND MAINTAINED IN ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL SEDIMENT IS TRANSPORTED ONTO A PUBLIC ROAD SURFACE, THE ROAD SHALL BE CLEANED HANDBOOK (VESCH). THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY PERMANENT STABILIZATION. SHOVELING OR SWEEPING AND TRANSPORTING TO A SEDIMENT CONTROL DISPOSAL AREA. STREET THE ESTABLISHMENT OF PERENNIAL VEGETA77VE COVER ON DISTURBED AREAS BY PLAN77NG WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER. SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS. TO 5. INSTALL THE INITIAL CONSTRUCTION MEASURES AS SHOWN ON THE PHASE I EROSION CONTROL PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER THAT IS ECONOMICAL, ADAPTABLE TO SHEET THIS INCLUDES (4) SEDIMENT TRAPS (1), SEDIMENT BASIN, WIRE SILT FENCE, AND S17E CONDITIONS, AND ALLOWS SELECTION OF THE MOST APPROPRIATE PLANT MATERIALS. TO DIVERSION DIKES. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF LAND DISTURBANCE TAKES PLACE. A TEMPORARY CULVERT CROSSING MAY BE UTILIZED TO CROSS CONSTRUCTION ACTIVITIES, ALL AREAS WILL RECEIVE A PERMANENT VEGETATIVE COVER. THE EXISTING NON PERENNIAL STREAM TO INSTALL PERIMETER CONTROLS. TEMPORARY SEEDING: 6. ONCE ALL THE PHASE I EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE THE ESTABLISHMENT OF A TEMPORARY VEGETA77VE COVER ON DISTURBED AREAS BY SEEDING EROSION CONTROL PHASE I PLAN AND THE INSPECTOR HAS APPROVED THE EROSION CONTROL WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND MEASURES, THE CONTRACTOR CAN BEGIN THE MINIMUM GRADING OPERATIONS. PRIORITY SHALL BE SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE PLACED ON INSTALLING THE PERMANENT 36" CULVERT AND STABILIZING THE BANKS OF THIS FOR A PERIOD OF MORE THAN 30 DAYS. TO REDUCE DAMAGE FROM SEDIMENT AND RUNOFF TO CULVERT UP TO THE TEMPORARY CONSTRUCTION ROAD. STABILIZATION MEASURES SHALL BE DOWNSTREAM OR OFF -SITE AREAS, AND TO PROVIDE PROTECTION TO BARE SOILS EXPOSED APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES, AND DIVERSIONS IMMEDIATELY AFTER DURING CONSTRUCTION UN77L PERMANENT VEGETATION OR OTHER EROSION CONTROL MEASURES INSTALLATION. CAN BE ESTABLISHED. 7. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN DUST CONTROL: 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 REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLITION AND FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. CONSTRUCTION ACTIVITIES. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND MORE THAN ONE YEAR. REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT HEALTH HAZARDS, TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE. PHASE ll: DUST CONTROL MEASURES SHALL BE EMPLOYED TO PREVENT SURFACE AND AIR MOVEMENT OF 8. PHASE ll CONSTRUCTION SHALL INCLUDE CONSTRUCTING STOCKTON CREEK LANE AND STOCKTON DUST DURING CONSTRUCTION. MEASURES EMPLOYED SHALL BE IN ACCORDANCE WITH THE VESCH. CREEK COURT. THIS PHASE SHALL ALSO INCLUDE CONSTRUC77NG THE ROADSIDE DITCHES AND TEMPORARY DIVERSION DIKE UNDERGROUND STORM SEWER SYSTEM TO TEMPORARILY OUTLET TO SEDIMENT BASIN 1 (BUT WILL A RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED ULTIMATELY OUTLET TO THE PROPOSED DETENTION BASIN AS SHOWN IN THE SWM PLAN). AREA WHICH DIVERTS OFF -SITE RUNOFF AWAY FROM UNPROTECTED SLOPES AND r0 A 9. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN STABILIZED OUTLET, OR TO DIVERT SEDIMENT -LADEN RUNOFF TO A SEDIMENT TRAPPING SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL STRUCTURE. MAXIMUM EFFECTIVE LIVE IS 18 MONTHS. STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT ROCK CHECK DAMS: FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. SMALL, TEMPORARY STONE DAMS CONSTRUCTED ACROSS A DRAINAGE DITCH TO REDUCE THE PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. VELOCITY OF CONCENTRATED FLOWS, REDUCING EROSION OF 7HE SWALE OR DITCH. LIMITED r0 USE IN SMALL OPEN CHANNELS WHICH DRAIN 10 ACRES OR LESS; SHOULD NOT BE USED IN PHASE Ill: LIVE STREAMS. lO.ONCE THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL THE CONTRACTOR STORM DRAIN INLET PROTECTION: CAN REMOVE THE SEDIMENT TRAPS. NO ITEM SHALL BE REMOVED UNLESS THE UPSTREAM AREAS THE INSTALLATION OF VARIOUS KINDS OF SEDIMENT TRAPPING MEASURES AROUND DROP INLETS ARE STABILIZED AND THE INSPECTOR GIVES PERMISSION. OR CURB INLET STRUCTURES PRIOR r0 PERMANENT STABILlZAT70N OF THE DISTURBED AREA; 11. MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND LIMITED TO DRAINAGE AREAS NOT EXCEEDING ONE ACRE, AND NOT INTENDED TO CONTROL SEDIMENT CONTROL HANDBOOK REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM LARGE, CONCENTRATED STORMWATER FLOWS. ADMINISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. TEMPORARY SEDIMENT TRAP: 12.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 A SMALL PONDING AREA, FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT WITH A STONE NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED OUTLET ACROSS A DRAINAGE SWALE, TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY DISTURBED AREAS FOR ENOUGH 77ME TO ALLOW MOST TO THE SUSPENDED SOLIDS TO SETTLE MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND OUT MAXIMUM EFFECTIVE LIFE IS 18 MONTHS. TEMPORARY SEDIMENT BASIN: SEDIMENTA770N. A TEMPORARY BARRIER OR DAM WITH CONTROLLED STORMWATER RELEASE STRUCTURES WHICH IS PHASE IIIA: FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. IT 10.ONCE THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL, THE CONTRACTOR IS USED TO DETAIN SEDIMENT -LADEN RUNOFF FROM DRAINAGE AREAS 3 ACRES OR GREATER CAN REMOVE THE SEDIMENT BASIN AND CONVERT TO THE PROPOSED DETENTION BASIN. NO ITEM FOR ENOUGH TIME TO ALLOW MOST OF THE SUSPENDED SOLIDS TO SETTLE OUT. IT CAN BE SHALL BE REMOVED UNLESS THE UPSTREAM AREAS ARE STABILIZED AND THE INSPECTOR GIVES CONSTRUCTED ONLY WHERE WHERE IS SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY PERMISSION. 11. MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND MAXIMUM EFFECTIVE LIFE IS 18 MONTHS UNLESS DESIGNED AS A PERMANENT POND BY A SEDIMENT CONTROL HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM QUALIFIED PROFESSIONAL. ADMINISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. OUTLET PROTECTION. 12.ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 THE INSTALLATION OF RIPRAP CHANNEL SECTIONS AND/OR STILLING BASINS BELOW STORM DAYS AFTER FINAL SITE STABILIZA77ON OR AFTER THE TEMPORARY MEASURES ARE NO LONGER DRAIN OUTLETS TO REDUCE EROSION AND UNDER-CUTTNG FROM SCOURING AT OUTLETS AND r0 NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED REDUCE FLOW VELOCITIES BEFORE STORMW47ER ENTERS RECEIVING CHANNELS BELOW THESE SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY OUTLETS. MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND CULVERT INLET PROTECTION: SEDIMENTATION. A SEDIMENT FILTER LOCATED AT THE INLET TO STORM SEWER CULVERTS WHICH PREVENTS SEDIMENT FROM ENTERING, ACCUMULATING IN AND BEING TRANSFERRED BY THE CULVERT. IT SOIL DESCRIPTION ALSO PROVIDES EROSION CONTROL AT CULVERTS DURING THE PHASE OF A PROJECT WHERE 4E - ASHE LOAM-257 TO 457 SLOPES. THESE SHALLOW, SOMEWHAT EXCESSIVELY DRAINED SOILS ELEVATIONS AND DRAINAGE PATTERNS ARE CHANGING, CAUSING ORIGINAL CONTROL MEASURES ARE FOUND ON MOUNTAIN SLOPES. MODERATE RUNOFF, WITH VERY LOW TO HIGH PERMEABILITY. TO BE INEFFECTIVE. HYDROLOGIC SOIL GROUP B SAFETY FENCE: 7B - BRADDOCK LOAM-27 TO 77. SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON A PR07EC77VE BARRIER INSTALLED TO PROHIBIT UNDESIRABLE USE OF AN EROSION CONTROL FANS. MODERATE RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY. HYDROLOGIC SOIL MEASURE. GROUP B. PERMANENT STAB/L/ZATION: - 14D - CHESTER LOAM 15% TO 25% SLOPES. THESE DEEP WELL DRAINED SOILS ARE FOUND ON HILLSLOPES. HIGH RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY.NHYROLOGIC SOIL PERMANENT SEEDING WILL BE APPLIED TO ALL DISTURBED AREAS AS PER THE PERMANENT GP B. GROU STABILIZATION OF THIS EROSION & SEDIMENT CONTROL NARRATIVE. 14E - CHESTER LOAM-257 TO 45% SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON AFTER CONSTRUCTION IS COMPLETED, ALL DISTURBED AREAS OF THE SITE WILL BE LIMED, HILLSLOPES. HIGH RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY. HYDROLOGIC FERTILIZED, AND SEEDED AS PER CURRENT VDOT STANDARDS. THIS SHALL CONSIST OF SOIL GROUP B. THE FOLLOWING. - TOP SOIL - 2" DEPTH 36B - HAYESWLLE LOAM-2% TO 77 SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON LIME - 2 TONS/ACRE HILLSLOPES. MODERATE RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY. HYDROLOGIC SOIL GROUP B FERTILIZER - 600 LBS/ACRE OF 15-30-15 SEED - ERNST 5311 CONSERVATION SEED MIX - ERNMX-114 (45 LBS/ACRE PENNLAWN 36C - HAYESWLLE LOAM-7% TO 15% SLOPES THESE DEEP, WELL DRAINED SOILS ARE FOUND ON CREEPING RED FESCUE, 37.5 LBS/ACRE ARGILS KENTUCKY BLUEGRASS, J7.5 LBS/ACRE HILLSLOPES MODERATE RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY. HYDROLOGIC PARK KENTUCKY BLUEGRASS, 15 LBS/ACRE ANNUAL RYEGRASS & 15 LBS/ACRE PLEASURE SOIL GROUP B. PERENNIAL AFTER THESE AREAS ARE STABILIZED THEY WILL BE MOWED AND MAINTAINED 81B - 7HURMONT LOAM-2% TO 79 SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON ON A REGULAR BASIS WTERFLUVES. MODERATE RUNOFF, WW7H MODERATELY HIGH TO HIGH PERMEABILITY. HYDROLOGIC SOIL GROUP B. MAINTENANCE • IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CHECKED DAILY 81C - 7HURMONT LOAM-7% TO 157 SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON AND AFTER EACH SIGNIFICANT RAINFALL. SPECIFIC ATTENTION WILL BE GIVEN TO THE INTERFLUVES. MODERATE RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY. FOLLOWING ITEMS HYDROLOGIC SOIL GROUP B. A. SEDIMENT BASINS AND/OR TRAPS WILL BE CLEANED AND MAINTAINED IN 89B - UN/SON SILT LOAM-2% TO 7% SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK. FANS. MODERATE RUNOFF, WI7H MODERATELY HIGH TO HIGH PERMEABILITY. HYDROLOGIC SOIL B. ALL GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP THAT GROUP B. WILL PREVENT PROPER DRAINAGE. IF THE GRAVEL IS CLOGGED BY SEDIMENT THE GRAVEL WILL BE REMOVED AND CLEANED, OR IT WILL BE REPLACED. 89C - UNISON SILT LOAM-77. TO 157. SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON C. ALL SILT FENCE BARRIERS WILL BE CHECKED REGULARLY FOR UNDERMINING OR FANS. MODERATE RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY. HYROLOGIC SOIL DETERIORATION OF THE FABRIC AND REPAIRED AS REQUIRED. SEDIMENT SHALL BE GROUP B. REMOVED WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHED HALF WAY TO THE TOP OF THE BARRIER. STORMWATER RUN-OFF CONSIDERATIONS. D. ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RESEEDED AS NEEDED. STORMWATER MANAGEMENT. THE STORMWATER RUNOFF FROM THIS PROJECT DRAINS TEMPORARILY TO THE SEDIMENT BASIN & TRAPS THE SEDIMENT BASIN AND THE SEDIMENT TRAPS WILL BE REMOVED AFTER THE DEVELOPMENT OF THE STOCKTON CREEK DEVELOPMENT PROJECT. SCOTT /R. CDLLIN: Lic. No. 035791 1/4/23 z z z z /A w U U U \/ J J W W W ZJ J J o W ¢ a a Oa m w w w H U, 0 Q Q Q o 0 0 o z H r F- Z 0 z z z '=I 0 - 0 0 0 `.. / � � � WMmm to to > ce¢ u] to u] Ili . z M z N N N M W C � C C Q N N N O 0 � n m i 0 0 0 0 0 Ir CY) 7- ti A CYO ■ C'M N 4 cr) I- ,'I- z N Q o J rn N N a- W Q 2 > (n LL 7 J I J > z U) p LU 1--I Lot F_ H1 O 13� Q ' = m C) '� i v ' LU F --- LU Ul(n c1/fL �_ U Z LULU of O IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII U) J LU o E J Q `� 0 O CD N U r) w LU r'-I IY a z J 0 0 U z LU 0 LU () 016 0 Fi ) 0. LU 222207 AS NOTED 3 Paved construction entrance for erosion control plans 1992 3.05 1992 3.05 TH 0 1992 3.17 % NE - -70' MIN. CONSTRUCTION OF A SILT FENCE CONSTRUCTION OF A SILT FENCE 1992 3.11 0 C, IsrRucTaN (WITH WIRE SUPPORT) (WITHOUT WIRE SUPPORT) STONE -LINED WATERWAYS � A_;;ESS J- Sy_2A ASPHALT TOP TEMPORARY ,t �7 �+LT L� ��i A V SCOTT R. LINS'Z, COURSE 1. SET POSTS AND EXCAVATE A 4'X4' 2. STAPLE WIRE FENCING TO THE POSTS. 1. SET THE STAKES. 2. EXCAVATE A 4"X 4" TRENCH 1'L,M ORAR 1 RIGHT-OF-WAY A 1 � '4 E LISTING 7x 2fL PAVEMENT TRENCH UPSLOPE ALONG THE LINE UPSLOPE ALONG THE LINE OF U Lie. No. 035791 .-- --, T.- --. OF POSTS. STAKES. DIVERSIONS 'Ip��p1 6'MAX. W +0�0 1/4/23�4 6" MIN 2' A AGGREGATE BASE "�i % i �_ ImII�IAnnNI VDOT I N COARSEAGGREGATE 1g" MI' SIONAL "c �� i = _- - 11i - _ PROFILE - --- - d - -� 70' MIN.FLOW 431ItJLTIO•� A T PAVED WASNRACX ASPHALI'.. - 4" FILTER CLOTH IRmIIff�� KEY IN FILTER -IIIIIP CLOTH 6"-9" �•..�'.� -•,Y` EXISTING J 3. STAPLE FILTER MATERIAL 4. BACKFILL AND COMPACT g• MINIMUM { 7 2E PAVEMENT FLOW - III IIII F TO STAKES AND EXTEND THE EXCAVATED SOIL. 'y 2; • Y AYH.• 4. IT INTO THE TRENCH.V-SHNOTE: A ED WATERWAY MAYTH BE SUBSTITUTED FOR F CENTER RAI CLOTH. 1 3. ATTACH THE FILTER FABRIC TO THE WIRE 4. BACKFILL AND COMPACT TILL /'� �r FENCE AND EXTEND IT INTO THE TRENCH. EXCAVATED SOIL / TYPICAL GRAVEL STRUCTURE ,ST EXTEND FUEL WIDTH POSITIVE POSITIVE DRAINAGE f ,f 14GRES5 AND EGRESS TD SEDIMENT _ _ ,,... r r TRAPPING DEVIf •" '. / O _F=RATION t .. /� - IIII IIII W 0 Z Z Z PLAN _/ 2/3 W U O O O - FLOW / - COMPACTED SOIL __ 4 12 _ __ I w J U U U I7' YIN. _ d =� u3 u3 u3 EEEE J � _ � a � � � II � IILU _°''¢- V - SHEETPERSPECTIVE VIEW) ION i-� __ _ - " - 0 1 •• = a DD w w w ..�,..-�. _ _ �.- -- - I� ,I Do TB--"'IIII LOW INSTALLATION ^T ? t i' r FLOW r I 1B" MIN' _ O U O / - F- O WII IIII KEY IN FILTER wQ Z F- O O ,.,�,,, FILTER CLOTH - - III A A -�- CLOTH 8'-5' N// Z O Z Z Z SECTION A -A =� - � FlOwt 3 \\\\ - �.,♦ O Ln o 0 0 EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. - ,5 2:-, HH (in N (n A unnioSInI N'atq lap At 1 Indl must he InA1allvi with a moulumn I Inch ballcoek /// e• M1N1M PARABOLIC WATERWAY WITH STONE CENTER DRAIN W LUca m m m shulotl rah a st 1 IhnlM a wash hose w'dh a thaindq of 1 A Inches La AdrE hale FILTER FABRIC Ln h I I NOTE: A GRANULAR FILTER MAY BE SUBSTITUTED FOR FILTER CLOTH. J En Ln � couslald plea>TTIe X%'lAl waiq Insist Ile (allied 1w.1N h011l the enhance to all HQH 1 Oee(1 seNklls alp 10 Ig110Ve sethllldd Al Keth111el1t shall be P teL'glted 6'Om III POINTS A SHOULD BE HIGHER THAN POINT H. I_Z cl� sF ante¢slonuthams.ddu chesotwalelcoses. L I I uuuRJ DRAINAGEWAY INSTALLATION TYPICAL EARTHEN STRUCTURE z -I - (FRONT ELEVATION) PAVED WASH RACK Source: Adapted from Installation of Straw and Fabric Filter Source: Adapted from Installation of Straw and Fabric Filter NO SCALE Barriers for Sediment Control, Sherwood and Wyant Plate 3.05-1 Barriers for Sediment Control- Sherwood and Wyan[ Plate 3.05-2 Source: USDA-SCS Plate 3.17-2 Source: Va. DSWC Plate 3.11-1 1992 3.08 1992 3.18 1992 3.36 1992 3.38 SILT FENCE CULVERT INLET PIPE OUTLET CONDITIONS TYPICAL ORIENTATION OF FENCING AND ARMORING PROTECTION A A TREATMENT - 1 1992 3.20 (SOIL STABILIZATION BLANKET) R 0 CK CHECK DAM N N 0N0 N 10 SHALLOW LU N 0 _____________ _ ' SLOPE y" 3d I CUT/FILL QUANTITIES: a N N N O ____ do .,,' I 2 ACRES OR LESS OF DRAINAGE AREA: Lei n rn�. `l --- T-' NE SHALLOW PRO SLOPES, STRIPS OF O O O O TOE OF FlLL i I PIPE OUTLET TO FLAT NETTING PROTECTIVE AC COVERINGS GRIP LINE I VOLUME OF CUT FOR LIMITS OF DISTURBANCE: CULVERT AREA WITH NO DEFINED u- I TMAY BE HE SLOPE. ACROSS --- 31,50o CU. YARD PLAN VIEW CHANNEL I I 3 VOLUME OF FILL FOR LIMITS OF DISTURBANCE: FILTER CLOTH 33,000 CU. YARD - I I I (OPTIONAL) L BERM SNOW FENCE �_ NET VOLUME OF FILL FOR LIMITS OF DISTURBANCE: I I a / L9 WHERE THERE IS IA BERM AT THE TOP THE SLOPE, (DOWNSTREAM VIEW) 1,500 CU. YARD OVET I I 0 8 BRING THE MATERIAL R THE BERM AND S D ANCHORVI BEHIND THE BERM. ____ __________ __r______�__ ___-_______ d yTAAL rn COAT g1 6" OF TOPSOIL SHALL BE HAULED OFFSITE TO A -- - COARSE AGGREGATE PERMITTED (SWPPP) SITESTEEP I� M ♦ TOE OF FILL SECTION A -A FILTER CLOTH KEY IN B--H-; RECOMMENDED FOR ENTIRE PERIMETER SLOPE _ FLOW 2"I 3 ` ' AS EXPLAINED IN EACH PHASE NARRATIVE AND M SILT FENCE o ON � SLOPES, APPLY � BOARD FENCE rMM 00 REITERATED HERE, PERMANENT OR TEMPORARY DISTANCE IS 8' MINIMUM IF FLOW A PROTECRVE COVERING PARALLEL IS TOWARD EMBANKMENT TO THE DIRECTION OF FLOW CORD FENCE SOIL STABILIZATION SHALL BE APPLIED TO N `Y AND ANCHOR SECURELY. L Row A 3do (MIN.) v Asnc ENCE 2-10 ACRES OF DRAINAGE AREA: DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL Of coGRADE IS REACHED ON ANY PORTION OF THE SITE. * d ! ! CORRECT METHODS OF TREE FENCING 'l Z OPTIONAL STONE COMBINATION L------------ -I STABILIZATION SHALL BE APPLIED WITHIN SEVEN W N PIPE OUTLET TO WELL DAYS TO DENUDED AREAS THAT MAY NOT BE AT DEFINED CHANNEL BRING MATERIAL DOWN TO A LEVEL AREA BEFORE 1 - FILTER CLOTH FINAL GRADE BUT WILL REMAIN DORMANT O� 1 A• 1 s' PLAN VIEW TERMINATING THE INSTALLATION. TURN THE END (OPTIONAL) (UNDISTURBED) FOR LONGER THAN 3o DAYS. N I UNDER e AND STAPLE AT 12 INTERVALS. "�'� •'- L a ``i'%l'�•:..`;�i�,.,. Y+_�:':•'.,:::.tY ,_II (DOWNSTREAM VIEW) J -r\ PERMANENT STABILIZATION SHALL BE APPLIED TOVDOT l--1 A DITCH FLOW COARSEIAGGREGATE AREAS THAT ARE TO BE LEFT DORMANT FOR MORE FLAW zs THAN ONE YEAR. d IN DITCHES, APPLY PROTECTIVE O COVERING ., USEP CHECK TO THE DIRECTION REQUIRED. OF FLOW. FLAW 2� 3, ILL] J W SECTION A -A USE CHECK SLOTS AS REQUIRED. AVOID KEY JOINING MATERIAL IN THE CENTER OF I � 0 NOTES: 1. APRON LINING MAY BEFILTRIPRAP, GROUTED RN d - :GAHIOMMENDED FOR ENTIRE PERIMETER THE DITCH IF AT ALL POSSIBLE. AMIM NMIT // `� - AJ6MAMI J 1 111��� J CUSS I RIPRAP BASKET, OR CONCRETE. > Z O VDOT 113, #357 OR 15 COARSE AGGREGATE 2. Le IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED + CORRECT TRUNK ARMORING CLASS I RIPRAP TO REPLACE SILT FENCE IN' HORSESHOEWHEN 1 HIGH VELOCITY OF FLOW IS EXPECTED USING PLATES 3.18-3 AND 3.18-4. 3, d = 1.5TIMES THE MA]ONUN STONE DIAMETER, HOT NOT TRIANGULAR BOARD FENCE LU 0 CII T LESS THAN 8 INCHES. - Source: Va. DSWC Plate 3.20-1 ~� Source: Adapted from VDOT Standard � �\ Sheets and Va. DSWC Plate 3.08-1 Source: Va. DSWC Plate 3.18-1 Source: Adapted from Ludlow Products Brochure Plate 3.36-1 Source: Va. DSWC Plate 3.38-2 I -I O O / U J II 1992 3.01 1992 3.07 TEMPORARY DIVERSION DIKE 1992 3.14 1992 3.24 Q Z SAFETY FENCE SILT FENCE DROP INLET EXAMPLE PLAN VIEWS OF TEMPORARY CULVERT CROSSING CID � U PROTECTION BAFFLE LOCATIONS IN W Y U) 0 uPACT1Y OF PIPE CULVERTS , VDOT /1 COARSE AGGREGATE 6" DEEP TOGETHER = FLOW Y ',: 2 X 4' VDDD FRAME ORS INLET Compacted SOiI SEDIMENT BASINS - LL1 � •.. ... TI MITI GRATE 1/2 DUMETER \ EARTH FILL COVEREDLU �.. ■.■ ® D OF PIPE OR 12'. \ HY LARGE ANCUUR 1 1 1 06 18" Into. WHKHEVB IS `\ ROCK .■. ■.■ IS' MAX. _ FRAME Flow D 2 NO SCAlE GREATER Noy c 5 `' - riiii - //�^ I' IIII-..; ,'. .: i,- I INFLOW V l � O II-I11FAll , RISER R _ � l � U 3' MIN. `�� � ✓ IRI- 4.5' min. NORMAL POOL L = TOTAL DISTANCE FROM _ ILL] O THE T OF INFLOW - I AROUND R E BAFFLE TO } YI• i, ER CLOTH LF�VL Oce GATHER AT CORNERSLU NORMAL POOL PERSPECTIVE VIEWS 0/2 L RISER D ; -: &� ELEVATION LIJ STAKE SPACING BETWEEN CHECK DAMS ` U) PERSPECTIVE VIEW II ,yl� - 1 }W 1 FABRIC 6 h VDOT /1 COARSE 1 [ IPRGE ANGUUR L = THE DISTANCE SUCH THAT POINTS NORMAL POOL PoSER Ik S - II A AND B ARE OF EQUAL ELEVATION AGGREGATE ROCK OVER j INFLOW 11 fl EARTH FILL r v IN. �� 7 O ♦- N4 hr. .t-ap V9O /I p 0 C) BAFFLE ° ELEVATION OF STAKE AND - L \L; 3 D/2 FABRIC ORIENTATION DETAIL A II I L - L1 + L2 III ... R=i NFLOW 50' MINIMIA.I T i i T I I T I 50' MINIMUM U 'T SPECIFIC APPLICATION w 'I. SHEETS OF 4' % & X 1/0 EXTERIORr 6 TOP OF BANK PLYWOOD OR EQUIVALENT _ TOP OF BANK Q W THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE THE �. : _ .�R,'°,,at I„I 1H� „• INLET DRAINS A RELATIVELY FLAT AREA (SLOPE NO GREATER Source: Va. DSWC Plate 3.20.2 RISER CREST ElEVADON d (n 6' MAX. 5' MIN. a 100iNf THAN 5%) WHERE THE INLET SHEET OR OVERLAND FLOWS (NOT EXCEEDING 1 C.F.S.) ARE TYPICAL. THE METHOD SHALL NOT I I I 4• I , 70B NO. PERSPECTIVE VIEW PERSPECTIVE VIEW APPLY TO INLETS RECEIVING CONCENTRATED FLOWS, SUCH AS II POSTS MIN. SIZE 4' SQUARE ON MD/ ORGIVSW LE AND/ 222207 I I I I I OR 5" ROUND. SET AT °R SWAtE PLAN VIEW OR swALE L PLASTIC FENCE METAL FENCE IN STREET OR HIGHWAY MEDIANS. FAS T INTO THE GROUND. B• SCALE AS NOTED Source: Adapted from Conwed Plastics and Plate 3.01-1 Source: N.C. Erosion and Sediment Control Source: Va. DSWC Plate 3.24-2 VDOT Road and Bridge Standards Planning and Design Manual, 1988 Plate 3.07-1 SHEET NO. -� K � Source: USDA-SCS Plate 3.14-6 4 VIRGINIA EROSION& SEDIMENTCONTROL �'� / / ♦ / l l I I 1 i v - �' / V A \ \ \ \ \ \ V A A \ V A A \ V ` V A. A EROSION CONTROL HANDBOOK SPECIFICATION NUMBER - - / �♦♦ \ / - - - - - - / \ \ \ \ \ \ \ \ \ /�' / / ♦ / / / / I I I � I \\ \ \ - \ \ \ \ \ \ \ \ \ - / \ \ � \ \ \ � \ \ \ \ NOTE: ALL DIVERSION DIKES GREATER THAN 2ei6 SHALL OSA SAFETY FENCE 3.oa - / / `� /♦♦j�♦ l 1 ' I I REQUIRE STABILIZATION. PLEASE SEE PLANS AND - - / ♦ /T. 6 -6,� I - \ \ \ TABLE BELOW FOR STABILIZATION REQUIRED FOR / >+ / / y♦ O6 II III \ VA AO v v A A--------�� --- vv vv\ v v v v v \ v I I \ \ \\ \ T. M.69 6C O - / \ / \ \ \ \ \ \ \ \ \ \ EACH SECTION OF DIVERSION DIKE. CE CONSTRUCTION ENTRANCE 3.01 - ♦ / / I I \ \ \ \ \ - \ / \ \ \ \ \ O - - A♦ / ST RT Y ORS Add, // VA Ovv vvv v GIBSON EVERETT E JR v v v v v v O CRS CRS CONSTRUCT/ON ROAD STAB/L/ZAT/ON o / / ♦ / ��-521 ,,�, / / / \ O \\�\\ \\ \ \\ \ t FIELDS / \ \ \ \ \ \ \ \ Diversion Dike Stabilization Lining Job Nurrbef: 222207 O 3 3 D.B:9415j704,'r`1 PIIAli �vt //�/// A���� vvOvvvAvv�v �v 1.07ACRES/- SF�E SILTFENCE 3.05 / / / / �/ / / ♦♦♦ I /// \ \ \\\ \ \ O \ \ \\ \ - --- e _ _ - -/ - \ \ \ \ \ lP STORM DRAIN INLETPROTECTION 3.07 / / / �� / / / / / / �♦♦� AAO \ O \ �A \�, vv v AV 0 / / �/ - A \ V / ClP CULVERTINLETPROTECTION 3.08 �_ - \ \ \ \ �_ �•. LL \ /j \ _ / / - - =� \ \ \ \\ _ - i ♦� / �♦ \ \ \ \\ \ \\ \�\ \\ �` /�- 9. >:..301LTYPE E� DD �� TEMPORARVDIVERSIONDIKE 3.09 \ \ - - - - - - - f / ♦♦`♦♦ \ \ \ \ \ \ \ )$\ \ \ \ \\\\ LL e . ;.•� W� TEMPORARYROWDIVERSION 22 \ / / j \ \ \ - \ �\`"\ e LLi/ %""-- \� \ T.M.69-516\ \ 3 --- ♦+ $TOCIKTONC�R LL / \\\ \ \\ _- \SOILTYPE. ��i: /// _ � \ �! �.� - MCCLAFEHDAN;6ENISI'l \\\ -REVISED T \� \ - - - - - - - \ 2.63 ACRES ♦♦ \ \ \ BOUNDARY (TYP.) ,, \ \ �- \ �` S ST O SEDIMENT TRAP 3.23 \ \ - - - - - - - - - A. \ - / O/ e �;' I O \ _ _ / / / D.6.5504 PG 61 - \ \ \ \ \ \ �\ \� - LL /!i - \ \ \ �. 2.80 ACRES_ \ SB SEDIMENTBASIN 24 vv vA - - V / / / / V A A A / i����p� v v v� v\vim ���A� 1••�/ _ / R�S ��� A Calculations Mae S-5.0% Me V=3.Ofps EG2,M.V=411fps EG3 TlwA,MimV=7Dfps Sta From Sta To T= (ram) C Value Area (ac.) CA c I2 (mPor) Q2 (cfs) Slope (ft/ft) Eatih (n=0.03 Jute(Sod (n-0.05) Paved Vel. I Depth I VA I Depth I VeL I Depth Note: Section A Diversion Dale 10+00 1 15+00 1 8.0 1011 2.9911.351 4.9 1 6.59 10.04801 1 1 2.03fps 1 0.81 It Note: Section H Diversion Dike 15+00 28.0 1 0.45 1 4.121 1.851 4.9 1 9.08 10.06001 1 pf Note: Section C Inversion Dike to SB 1 21+20 1 26+72 1 6.0 10.45 1 0.62 10.281 5.4 1 1.51 10.02801 1 1 1.86fps 1 0.52 It Note: Section DI)iversion Ihke to SB 1 10+00 1 14+80 1 6.0 10.45 1 1.89 10.851 5.4 1 4.59 10.03001 1 1 1.38 fps 1 0.77 ft Note: Section E Diversion Dike to ST 2 -- 10+00 1 18+16 1 6.0 10.45 1 0.70 10.32 1 5.4 1 1.70 10.06101 1 1 1.37fps 1 0.47 ft Note: Section F Inversion Dale to ST 2 10+00 1 14+95 1 6.0 10.45 1 1.00 10.451 5.4 1 2.43 10.07801 1 1 3.11 fps 1 0.51 ft Note: Section GDiversion Dike to ST 1 10+00 121+13 1 7.0 1 0.45 1 0.78 10.351 5.2 1 1.83 10.07501 1 1 2.88 fps 1 0.46 ft Note: Section H Divetsion Dike to ST 3 10+00 14+10 6.0 0.45 0.70 0.32 5.4 1 1.70 10.04901 1 1 2.36 fps 1 0.49 H OP OUTLET PROTECTION 3.18 \ \ \ - - _ - _ \ ♦ �� "' / \ , _ -z _ -e \ \�r \ N \ - - = \ \ \ \ , RR v -�\ \\tom / / / / / �V � � ♦♦ \ � ____ ������� A \ �i�A �\� /�/ O--om-- Ov �O\Ate\\ \ \1��\Av �\\`� \'\°�\���, SN \ / -,�-- - - v SECTION STABILIZATION LINING REQUIRED Zee" F RIPRAP 3.9 JUTE EC-2 TS TS TEMPORARYSEEDING 2 V \ ILTYPE a - - A • v 33 � \ �i% IIII/ \ \ \ ♦ ♦ SO 7 ` � \ \ . \ \ JUTE EC-2 PS PS MU MU ttI /I �/ / - /v/ /` - - � /// � V\ \V \ \ \\ A A �v \ _- �v\♦ ♦♦ ♦♦\ \ \ �\ \-� _ 11 � PERMANENTSEEDING 3.32 0 ♦�♦o♦JPt�,ieO p/ > � �`eA\VA� \'� \\ r\\"(�\\VE O\\\�� \" V• �.., AREATO © JUTE EC-2 DRAINAGE DIVIDE MULCHING SEDIMENT BASIN - (TYP.) ILT 1=7.16 ACRES - JUTE EC-2 O TPA \\t /�//\\\v \\v\-_\\\O\,`,♦A\\ g22-_ -- -9zy TREEPROTECTION JUTE/ SOIL TYPE EC-2 38 _ BOUNDARY(Tyr.)-p DC OC \ \ \ It // / /�/ /� - - - \ / \ \ \ \ \ \ - _ \ \ \ \ \ ♦ \ i' - -V _ / Orb-, \ �� �,.\ III \ y� I I ,(+.� \ FO JUTE, EC-2 O - - - - - 1 p- _ DUSTCONTROL 339 \- A OXI AT� \ . \\ / a \ \ \ ♦♦ \ � / I I o AT ©N S EA. \ \ / - - OG JUTE, EC-2 BM + + SOIL STABILIZATION BLANKET 3 j6 - o. \ \ \ \ t /// \\ \ \�\ �- \ \ \ \ \ \� \ _ - - OIL TYP\i D\ \ ♦ / - -- _ -_ / X / \ . \ \ \ \ \ JUTE EC-2 \ vVAvvv v A V A v v A A I A _ s 0 ERHEAD / A A \ \ v v ♦ t / / v v_A \ v -- SOIL TYPE \ 1 I - v ♦ V A�� \ t // / _ v v v v v v v v v v\ __-�__ - ♦♦ U LITY //� v A A �� BOUNDARY (TYP.) ♦♦s�� Li I-vBOUNDARY(TYP.)v vO - A �♦ OTE: CONTRACTORTO v V A v ♦ s / ♦ ' \ q \ / \ \ I I v CONTRACTOR STAGING AREA WITH / / / v v vv vA v T \ ♦ v O� v v O`I \ \ �\ V I I \ v \ I I v v vv vv v v ENSURE POSTIVE DRAINAGE � v A V A � � / / q A \ �� / � � � / ♦ ( \ v � V� � �\\� \ I I V Ill ( � I I I I � A i/ v ♦ ♦\ / 'F♦ A V \ �" l� / / - \ vv A vv vvv ALONG DIVERSION DIKE A �� v v - + SOILTYP6 B ♦ ♦ �� I v v V ° v v \\�V \ VA \ V I V A 1 I 1 I I DOUBLE WALLED FUELING TANK, _/� /� r v v v v v vvv w v A �\v w V A \ v - ♦ \ V v / VDH \ V\- V I / DUMPSTER W/COVER, - II ✓/ / SOIL TYPE >4D v V A VA _ v - v v A V A \ SF r ,' / - / ♦ V A O \ _� \�\ MONUMEN OVA\ AND PORTA-POTTIES �I / / 6'wIDE v - A A VA V \ - A v - / + VA 1I \ \ \\ \ \ \ \�\ \ sus ->`_ _� / I 1 ) I ' ♦.l SOILTYPE \\I FOU D \ \\\\\\\ \ \ \ \ \ \ ~ // /TOP OF SF \ \ \ \ -- \ \ \ W/WI E \ / - \ \ \ \ / I \ / - / / ♦ / BOUNDARY CONCRETE WASH ♦ \ \ / /' "° DAM \ \ \ c�A� \ \ \ \ \ \ 1 I I I I I I I / / _ SUPPIORT \ s1bPe\\\ \\ SUPPOs� -- OUT AREA ` % / _ t t♦? ♦ o \ \ \ \ \ \ \ \ O \\DRAT AGE DIVIDE \ \ A \ \ / / TYPE c - J / / ♦♦♦ \ \ 3 / J \ \T \ \ I I // R/W DIVERSION AND DIVERSION DIKE // \-_ �" �♦ k \? \ \ \ \ \ \ - \ \ TYP.) \ / / \ \\ / / // / \ \ \ i •.1 -.♦♦ ♦ \ �♦ \ O \ \ \ \ \ \ \ (, TP -- PROPOSED LIMITS OF / \ - / \ ASS; SEDIMENT TRAPPING DEVICE / solLrvA 7e i ♦ tt w �\ \ \\ \♦ \ \ \�\ \ \ \\ \ \ \ 9po \ \ \ . \ \ ¢� ���� DISTURBANCE =16. ACRES I // / / / /p e / •• \� rER \ 3 \ \ / / \ o' s� ♦ \SOITVPEiyE \ \ \ \ \ \ ♦ \ \ C / 93 / / / \ \ \ \ He FOR CONSTRUCTION ENTRANCE / / % �t ,a r \y ♦ \\� \ - \ \ \ \ o / i r $ PROPOSEDFENCE� Zi�iVA\\ V V\VAV A \it�V �� v\\ / / w %m / / �- ♦� /// I///�VA V .148AI I Av vv vv I 1 I I / I / /// A 1 AROUND SEDIMENT vOV A \ A VAV A Y \ > RE%aT0 SEDIMENT' : _ / I i / / ♦ / �lll l� l� // / A AVA A I I v A \ / / / MV 69-6M \ ♦ ST4 fit, V sa�rvPE ODA- TRAP A\ VAV A A \ v TRAP 1.28ACRE5 // \ v \v / / REV1SE ILOT7 / B" �; iw" '' ° \ \ \ \ \ \ �/ / /p 1 1 1 A I _ - "s ' . \ \ � O\ \ � ,�"\ 3 =� l"'. ' .. , ,� ;,isAREA TO ♦ \ \ \ \ \ \ ST / / ACKE MAN TRUST 3 SOIL TYPEi4E D.B.4 3-Z3 I i i j / SEDIMENT TRAP �^ \ \ \ PROPOSED FENCE oo -- / / NOTE: CONTRACTOR TO ♦ - \ \ �s� ��s♦ \ .�\ \ a.. - - ENSURE POSTIVE DRAINAGE / .6!47/83-20 & 21 PLAT t A \ 1 1 - 2.00 ACRES ♦ AROUND SEDIMENT // /// 'D.6.4456 4�P4 I ♦ - - - \ TRAP ♦ �. - / A ONG DIVERSION DIKEt / I III / o \ \ \ \ \ \ \ \ *V \ 'WIDE ♦ B / �/ / t / \ a `�C, : \ \ \ .0� �N \- \ BM .. I \ TOP OF - .- _ - ' B.3530-234 PL T t - - = = " - " \ a \ O / ♦ I I o \ \ \ - � '- ' � 1 v - A v � � `° 1 "„ - I q�\� \ \ \ \ \ rn \ // //// I \ - \ \ \ \ m \ � \ \ --�♦ _A EA TO DD=___ o° / / / ♦ / II II / O �\� \ - \ � \ \ � � // _ A I G ♦ A v A \ Sfi „ \\ SF \ s gg C A I SOIL TYPE \ � \ \ � \ / 12'x70'MIN. I C BOUNDARY (TYP.) \ t. \ i „ \ w/�)JIR� \ ♦ = O SUPPORT 8 \ ♦ - '-- // /// // ///� / ♦ 1 \ �, \ .„ & I SOILiYPE BgC NOTE: fiHIS CONSTRUCTION / / 1 `.♦, \ \ �s \ ♦ \ / % w/ WI t I o \ \ \ \ . = PROPOSEDTEMPORARY \ti .\ \ \ -: `\\ \ / C ENTRANCE SHALL BE INSTALLED, I =--r-- \ WgDE \ 1Q SIP ` t / / UPPORT STOCKPILE SURROUNDE tt \ \ C 1„„ „ `„ t . 6` F - r \ - / ♦ / / \ �S \ \ T. ?� 5 /OPERATED AND MAINTAINED BY I / / ♦ \ \\ 836 �. SOPO ( - \ / O \ \ M'� / / // _ ♦ I BY SILT FENCE y \ \ \ \ \ \ �♦ „*� t F / o� \ .O S �(X \ \ GRA\j/ES O THE CONTRACTOR. / WASH RACK �° 1 Ot \ \ \ \ \ \ \ a \' ` $ i 9e , J ♦ \ \ ��� - / J \ / \ 1 / o % �' / \ .�'6 q \ \ 26. 8$C /,CONSTAREAISOALLUTIIC IN THIS/IZETHIS // // / ` SOIL TYPE36; \ tt 1\ \\\\. \\ \ �� \`\R�; aa6= t \ \\` \ SOIL TYPE / 0 / / \ FLOW DIRECTION \ ;\ ♦� try \ AREA TO \ \ \ 9�- I o Y \ O 2\ \ \ 1 �> BOUNDARY (TYP.) CONSTRUCTION ENTRANCE.I / ARROW (TYP. \ \ \ \ --_a94 / ) \AREA TO ♦ \ I I P \ /� / IIII / /�V A j V \ V I l l 1/ ill •q r A � � � v 115EDIMENTTRAP � A � q . �„. pC v a I I\ � I I � � o / ///Z//// / / I 1 1 / / / / i/ \ SEDIMENT TRAP ♦Y m z = 2.54 ACRES \ \ \ \ '` �- SOI i o. \ \ \ \ J SF , SOIL TYPE E \ \ \ \ \ v i / o /r 1 1 A V .� A \ "\ w(WIRE l A v v ��=1.11ACRE5 / DRAINAGE DIVIDE V A \ "+- ♦ \ - - O/ / V ` solLrvPERgB �/� /// T.M6 -6fi / / / l I / I h -- , SOIL TYPE v v t. ♦ V A v I _SUPPORT / �. A\\i v / vvv A \ 6/ (TYP.) AL ARE TO DID = LO�1 / / BOUNDARY (TYP.) V `� \ \ V A �� A A \-i-ACV♦� �\ V A \ V A V V U -�a9o_-- I ♦ / r) A v v F AN K' D N'LEY & / l I 1 I / / � \ f�OTE: CONTRACTOR TO - \ �.q \ \ \ \ \ \ 'w , ♦ � ' " \ - - / 1 g 88 AC- // �/ CARLA \`ti - -'/_ / / /y/♦ //�t / t♦ `_ s- �sb o/_ /��)// / /I / I I 1 r �\ I \ \ 1 \ \ °�aXONLEYENSURE POSTIVE DRAINAGE B'.3 80-82, SION DIKE LATi / IF+� \`\ \\\ \` \\ ` \ E ♦ F - \O ---- 6 E 1 \1 I1 1 I AREATO o o SEDIMENT BASINa-NOTE: ONT ALTOITO °S 94 SOIL TYPE 3sc \ \ ♦ - - - D \ 1 I\ 1 I Os 1 -7.16 ACRES tI \ �. D ENSURE ALONG POSTIVE DIKE DRAINAGE \ \ \\ \ / / /' /---i �' , V A VA,\ iA\ \��A.' RS ttsolLrvpEagcA 1 �� A vv \\\ \1 �_ � � � / / / / / � w%WIRE i v - . / / SOILTYP 36E 9zo-__ 1 'V \�� C 1 \ I / g�O�� \\\ \�_- -- --- - `i/ / SF / / ' �sUPPORT O \ \ I11\, /LE \. ,w/WIRE / - \J bb ` O J Q --- ---- - -- ,SUPPORT / /, / / N - /, \\ VDOo W=UPIT0874E �� \ \AREA/tt'\ f aB \ \ \\ \ OVERHEAD( / --- �� \ _�_ - wo'--- -_-- ° �� //, / /// 912 s♦ �\I�� ♦\�\ \\CONTOUR LINE \ ` \�2.8g AC _ "f:�_ \ it `\\ I �1\11 111 11''' 11TILITY _--- / / / ► ♦ LINES 1� ! o r y o Q O ) - _ IS - SOLTYPE ♦ DRAINAGE % �� 1 \ 1 111 PROPOSED LIMITS OF _ � 3?C ' ` „ J I 11 �111 I � � ( I / �O�- ��� DISTURBANCE=16. ACRES D NAGEDIVIDE / 1 I I r / _ - - - -. - , / / / i / 3/ ^ - _ I \ OIL YPE iyD i i ♦ \ yt/SOIL TYPE\ I \ \ \ (TYP.) \ ♦ 11 \ 1 III / � I 1 sus 1 IF \ � � � � � - - / / i // / / v � v v v ) A � \ q ,� � 1 BOUNDARY (TYP.) A \ � / \" - / / v I I r A I A SOILtYPE89B /// /// -� �� \ PROPOSED LIMITS OF �` D 1 O p VDH \ ) / \I ) // v _ �,/ I //, //�� v-_ / w , v vv / DISTURBANCE I� I A � � ♦ G MONUIVIENT ` / / \\` \ // / ; / // \ \ \ \ \ / \ ° 1 \ \ 1 AREA TO bD= FOUND V /// \ / // v v _ - - PROPOSED FENCE cemcAL ,w � ( _ L . V A - _ SLOPES %, soli rvP)E Sac 1 �B� o.6z AC v / _ / v �111IIIIw �v t �ti v \ \ \ T M169-19D / AROUND SEDIMENT 1 I v �REVMD LOT 3 TRAP CKTONCREEKLTG -- / v I v v v /7/�, � / '/ - - // v-SOILT'Pe 6c / /J// ♦;. V v v \\ /� �NUH /06. 504 PG\\\\ / NOTE: SILT FENCE SAFETY \\- \\--` 3/// // /IIII :„„„„i5„ :� \\�\ c SFR P 1C� \ O/ // // N \ `//� N1 E T ,_ ` /� // I/ I :i„ \ \� A A v w/WIRE VOA\ \ / /OI F U\N�\ r v / / 4.56 ACRES, _ - _ _ _ 1 SHNCE, A INSTALLED AT LIMITS \ \ NOTE: CONTRACTOR TO / „ * y y * *„* *' ;, \ \ \ \ \� \ SUPPORT SOILTY e4D FENCE AND TREE PROTECTION v �` - /' .t„„;. V A ----- V A I „„„ „ .o„ \ SOIL 8gc \ \ ENSURE POSTIVE DRAINAGE I %. „„ ; : \ \ PROPOSED FENCE OF DISTURBANCE. THSE ARE \ \ `ego __ v v v v -'ALONG DIVERWN D15E / C „ , „„„ . „ : „„ \ V A q AROUND SEDIMENT VDH v v --_-- i �/ / // / i /i / - - OFFSET FOR GRAPHICAL v v- �- , i / / �.- ;„„ „\„ :\ \ \ - - - v PLEASE SEE DETAIL SHEET 8 „ A BASIN / / - / --PURPOSES. DRAINAGE DIVIDES FOR SEDIMENT BASIN 1'SI„ MONUMENT - - ; ' / // / FOUND ARE MEASURED AT LIMITS v - v \ �V `•� vv� DESIGN DETAILS OF DISTURBANCE OR' _ \ SOIL TYPE DVERSO E. v\ - --// '/ // / 1 1 ` A A �� BOUNDARY (TYP.) L cRIpCAL \ / IS I I N DIK v A/ / \V I �\ / \ _ -CRITICAL SLOPES - - r - °� / / / / f \ \ �44FOOT v�-�- SS �'� �B_ SB �. VA\\4FOOT HIGH IF 1 � A �,IVI „• vv 7 ' - / /%VDH FRE611 RTHU�t� O A A v / - -- - VDOT CLASS Al STONE i „ �j - _ / \\\ 1 OP': y --/OUNDENT L-a6', Wi=6', Wa=iB' i „ ea.-- ��N F \\\ \\ \\\\\ T_M.69-1JA7 - - - MONUMENT- S dl�ST,lOSEPHSCOTT&- - -=O -=F6U 2- \ \\STATE R�U� �- �� _ _=_ eRGT,c L -- -R SCALE _ 4 9 ACR�� \ \ CASEY-RJ_UST - --- --\ --_ --,��� s E 51 �LBPES - -- GRAPHIC HIC �1 ACRES - - \ \ Sli©P_ ��D - - - - -� _ - - _ _ VDH 80 0 40 80 P 160 320 \c DITZ \ --------------- -- \� \ 'SOD-B'^14 '�WYDT _ -`\ - - MONUMENT-- - - ----\ SIN - 8'WIDE O DAM FOUND \\HwP„p3�'\ \ ------_-_-_QP�F -.. \H \ \ \ \ \ III �t, ryN_-_ \ ( IN FEET ) \\ _{1(Ir�tx��+L7iwvlVKh11�s1\F -� �j/ - - inch = 80 2 \ \ \ \ \ � Yam\ \ d-' �� - - - - -_ - \ \ \ 1 h ft. 0 EIVI - - //// U -i- �- V A VDH � Lie. No. 035791,E OL'SlOnrnT. ���ti�' Z U o o O /w J U U U Z Z C) w Q Q Q w a m w w O Q LU O O O Z Z H H H o Z Z Z o to O U U ut In (n U) LULUch� M m on m M J (n (n Z iY Z w ('11 CIA CIA Q N rN Ln If 0 0 0 L9 C'7 C7 C>7 N LLM z Q O W W N V) Q > (%) LU J j Z \ J Q LU L9 11111- (n p O 1--1 � 7 J > z IS 8 WU � Y (f) W LU LU 1--1 LU LU Ul CO LL U) U p ZLU LU O z O J O O U LU J O 0� N U U w m a JOB NO. 222207 SCALE y 111=80f SHEET NO. 5 VIRGINIA EROSION& SEDIMENTCONTROL Sediment Trap design � EROSION CONTROL HANDBOOK SPECIFICATION NUMBERdraSEDIMENT TRAP #4 DETAIL r SA SAFETYFENCE 3,p _ / / / // II I I \ �II�I II II �IV�\��AtVAA� \\ // AEI A trap volumenage areas: (acres)(<3 ac) 1.11 �"� S ALE: ZE(=20( �� / / \ trap wlumes: �� CREST OF STONE wElx .,�„a� MINED / / T. M.6 6� I I VA VA A Vv V A / v elevation (ft) area (sP wlume(cP volume(cy) �. y / T I A v v - WIDE sza na a 0.0 I CE CONSTRUCTION ENTRANCE 3.oz / / LOT 6 \\ \ \ \ \ \ T.M.69 6C / \ / -a 930 1605 2,329 86.3 DRY STORAGE a vwveE[ / S ARTTAYLORSMAdK j // // A �A�A� vv A / 'V GIBSON EVERETTEJR ��� ��I 2 932 2700 6,587 244.0 D 6.5 6 521 // A v \� FIELDS 0 0 0 0.0 CRS CRS CONSTRUCTION ROAD STABILIZATION 3. 03 / / I\ ( / / / \ \ V A V v v t / `: Z D.6415 764,7 PI}AT v///� --- -�-� vv v v < - - - \ - 1.07 ACRES - o a o o.o w�sraanRE ----- / RED COME, SF �f �E iE SILTFENCE o - � M /____ -11!---- - wet storage: /} 3 S 4 -SEE EU,E YI3-1 C4V6F .1ECRFGIE C.S I N~ lP STORM DRAIN INLETPROTECTION 3.07 / ' / �// \ \ -�- - \ \ \ - - s --- ,� - �- wet storage required (cy) (67"DA) 74.4 �� 'bottom of stone weir (it) 929.72 wet storage promded at this elevation (cy) 74.4 �[}' O \ -� / _� r\//� slope of wet storage sides 31 ` C/P CUL VERTINLETPROTECT/ON 3.08 _� _ _ i / / / i \ \ \ \ \ \ \-1 \ \� \ \\ \\ \ Y - - = •� \ / weir length (ft) (6x DA) 6.7 - - - - ' / /✓ \ \ _ \ \ \\\r\ ` _. /t/ d - ry storage: bottom of trap elevation (ft) 928 0 TEMPORARYDIVERSIONDIKE 3.og ` - - - - f / /! / \ \ \\\� \ \ - \ \ \ \ \ \ = \ e dry storage required (cy) (67 DA) 74.4 bottom trap dimensions: 21'X40' - `\\ -I_ i- / / ' \ crest of stone weir 931.0 top of dam elewtion (fit) 932 /,���������� ����11� \ \ __- -- _ / / ' T. M.69-19G dry storage protided at this elevation (cy) 80.7 top width of dam (ft) 6' Nair*, ��' - ] TEMPORARYROWDIVERSION 3.11 \ / / /�/ '-REVISEDLOTV j \ �\\ ��\� w_-" %/�� slopeofdrystoragesides 3:1 top trap dimensions 387Q30' \ _ �J2 ••��� \ •�� rQcw2TON CREEK LL / \ v A� v-, \vv LOP �v v \ ;_I / \ � � j� �1, \ v - / /� / 63 RES�' - v ST SEDIMENT TRAP 3.13 \ - - - - - - -- / / V i / A A V AA V _ v v ��vv v •r �`•A� I .BOELDS ----� �� / // D.B 04PG,61�---- A v _ vvv�vv� v= -�%�/ �V�� w.. �� ACRES \ ♦ X X \ - \ 2 A \ \ f P V A - - V �� �/' % / V � `i�� A /� � V A� � �A \cA V�� -� � � � 1• \ �V ��'Zy � �e %T SCOTT/R. CDLLINSZ Lic. No. 035791 � p 1/4/23 SS SEDIMENTBASIN 3.14 VA v --�- -_ <-- / / T -\ V / `gyp A V AA v vVA..v� .,4- /�,�/ -�'V ��\� v,�v A v '•� -�T %�: S \ \ inn - - \ J \ \ ♦ / 1 \ \ OP OUTLET PROTECTION 3.18 - - v �// / / \ \ v v/-�� ' C \_r _ - �� A v v AA'• ��P VAA - Imo/ / ICI �� U O O O --- �� // / V -V♦♦ / �/ ♦ ` e r v "'VA�V �• e�F \VAA �' T' w U U U - / A \ V ♦� ♦♦♦ I A 1 \� v�LL v ��\�\� wv / --- ---9�8 �X Y � W W RR RIPRAP 1 - \` _ / - / ♦ . - _ CD 0 ROCKCHECKDAM 3.20 , / / \ �� ♦ ♦ \ -1 ` \ \ / \ b \ \� °\ i ' ~ w m m m v \ // / / / / V A v ♦ ♦��i / v �v V V I`\ V ,V v �' V d J w w w / \ V \ \ ♦ / ♦ A ��V v w \ V v v \ \ / \ / / / / ♦ \ / \ \ \ - \ O U Q J J J I \ , / / \ \ \ �� \ ♦ \ / ♦ �\\ \ "� \\ � �� \\ � \ ��` :?/ \ / � ��'�-1�E- •{'ice � `� O� Q Q Q TS TS TEMPORARYSEEDING 331 /. r ' / �- \ \ \ \ \ ♦ \ \,. \ \ \ ✓ " 'X- 'jam w O O O -- / / \ \ \ \ �k \� \ \ \ in p z H H H ^ V AV A V v - - - - - - - r _ )) PS PS PERMANENTSEEDING z \ /l / - i �� \ \ \\ \ - ♦ \ 1 / 9�6 X FBI O to O O O 33 \ \ - ♦ ♦ \ ,..\ AREA TO - - ---- / K/4 \ ,° \" \\, \ 4 \ /\ in to (n vt (n - - - \ \ \ \ - - ♦ FLOW ARROW \\ / - \ \ \ \ - ♦♦ \ SEDIMENT BASIN 9zz - - - _ 4 - / 1 al I / / \r r �. - LU m m m / � � v _ � - ♦ TYP. / � \ \ e ° �. A v v w MU MU MULCHING 335 VA\ / / / - v ADDITIONAL LOD FOR DRAINFIELD ♦♦ A i = ACRES �� `\ \ INSTALLATIOOCOAT ON WIT SURROUND DNCIE TYP. \ \ ♦ \ -- / / \ \ \ I I I /. �y ` - - m Ln TP M TREEPROTECTION 338 \ \V / // / / - ( ) ♦ r ��'4V / - v v ♦ 744 - / \ \ ICI y.O '��� n n �~+ N M "t ADDITIONAL LOD = 2.Si ACRES \♦� /' - - - - - - - ARPR�XL�/IATr \ M z DC OC DUSTCONTROL M` VVV - V A\ �/j 1 � � �, v v � V v A ♦♦♦ � � � DC � x I I I � I�©� STI�EA /i J� vv�vVA� \ X _ / / BM + + + 50/L STABILIZATION BLANKET - 6 \ V A ////' , -V A�\ v�AV A�--V A\ \ \ \�� -♦����� �>.��� V i - -"�" I/ // VEL VA \V ���u_ A"�vV I� \ ♦ A\. OBE: CONTRACTOR TO v A � i \ ♦ / A � \ / \ / / v v v ENSURE POSTIVE DRAINAGE v \v*� \ V V CON I KACTOR STAGING AREA WITH / v vvA v� v v _ v \\ VDOT CLASSEAI fV DOUBLE -WALLED FUELING TANK, f --- v A� \ V ALONG DIVERSION DIKE v V v D\ \ V VDH\\ /( / 1 \I I/AI \\III I �/// //II //��/ / //�� // //I //// ( ///// / I/ , 6//9/// �,/ /, / -v -I v �� v / ! 'v� % 6�a.i_°� _l °-nn XX pw �v/z ss.I \v�,yvVA �\A�♦Av ` .v�v � AA♦ \A � AV AA�V�A\\� �A �•'�\A�\'Vv DVO�\vV TCv �-_ � \\v�\v\ AA\�\A \��\v \ � �Av vvV vv VvvwAI v SW� vI Ev \ bi�y! V� v��v v RAPS/= �iS.44DAI /rCRIfE5 /S/ ✓f a / /I \V�V MONUM�NDUMPSTER W/ COVEAREA O DITCH TO 6'WIDE STORM STIR lo'ANDPORTA-POTTIEF CONCRETE ,iWASH SEDIMENT 3°-AE TRAP 4 = DMSUPPOR OUTAREA 0.48 ACRES HIGH wERI \ vAv \ v � - �v- vv NN CDNN rnNN N w/1'HIGH SIDES \T o w o v CR A oRIW DIVERSION AND DIVERSION DIKE PROPOSED LIMITSOF 0 0 TO SMALL SEDIMENT TRAPPING DEVICE v \ KER FOR CONSTRUCTION LASS Al DISTURBANCE16.93 ACRES RIICAL 11 LINED SLOPES //////////v TO ST4 PITCH TO M0 STORM STIR io 7 MAN TRUST ,4 P�R\�OPvOvSED FENCE ENAC� EloS�ETv 3 ♦•'�`� � �- P y - _vv_ �vi� NOTE: CONTRACTOR TO 20&�, P 1 1.URE POSTIVE DRAINAGE 21QLAT AROUND SEDIMENT NGDIVERSION DIKE / I o / TRAP oP oE,• e �yA `A A vA\V V 1 A -- I -A 1v A -Av v\A I�II v� v CO vv , i�///�// /////� \I� I I / \� v\ st_� v �SF wv:�v♦ vsk:-- ---- 9 /o/\��� 12x7o MIN. CE / / w/V1VIR� �A V • A ♦ i A A�� V..♦ ♦ -� SF // / / , ♦ ♦ OC 944 ♦ Av" r .V A B \ SUPPORT /,," M �A � . VDOTCLASS AILINED I� I I / ° '�`V''• A � v v i NOTE:fiHI CONSTRUCTION / I V A \VA� s \ w/WIRE / / `. o \ s o DITCH TO STORM STIR 8 Cf� \ \ \ \ M //ENTRANCE SHALL BE INSTALLED / i PROPOSED TEMPORARY \ DE \ \ ( )I\\ \ f�- iOPERATED AND MAINTAINED BY / / STOCKPILE SURROUNDE \ \ '\ " sO of \ \ \ \` `CIP \ - \ + / SUPPORT \ J I I I III / / o 9 � \ T �_ Z \ s \ M / f l l BY SILT \ \ \ SOP \ \. \, IP I I / / ` o \ B y \ \GRA E\S (� N Q CONSTRUCTION TRAFFIC INTHIS / / / RACK + ° 4 `\ OpM �� ^\ \ I --I THE CONTRACTOR. ALL - -1 -r �� V s E 1 V A a� v v �` A / o r / �' r'6 FA O J r-t i W / /j // AREA SHALL UTILIZE THIS l i � I �� � \ l �"V A \ \�'\ � � `�� x - i �� �\� A_ � � il� /> I I 1 I \ / � o� � " /" °� "��n A S � \ N � CONSTRUCTION ENTRANCE. / / / / GRASS LINED DITCH �\ \ ARZ AT 5 \ `• \ DA=z.94AC I -- ,' 3 I 1 / ` o \ �p \ \ \ N (n A��SEDIMENT TRAP�y v V --�� S9� , �/ V 1 o /AA - o \ \ I A 1 < Q / x \ 2 - 2.92 ACRES \ - \ - \ - o � w%WIRE �l 1 A II A / � O "I r �. v v AvVA i v vw V d / // �/ // / \ \ ♦\ DRAINAGE DIVIDE \ \ i - . -----SUPPORT T M 6 -6 / / / / / 1 l � �+ �. I \ \ �� oa - - � 4 8'HIGHVI�IR / � / I I \/ /' I` �\• `\a \ \ � \\ \ _ / /1 \ \ -_` \ ♦ 9 \ / VDOTCLASSILINED ` (TYP.) / / \ \ - D w/a33'HIGH SIDES' - I . \ C / DITCH TO STORM STR r \ \ \ \ C J F I�1 D E1V / I A F V v x�� z / i - v " 9 sae \o v -- 'ss A J �\ J Z RLA O, LEY S' ° V / Z _ �. F- --- - Imo. - - I - \ e6 PS s0 • m d4, / A.3 8 8 \ / ♦ -e / �\ \\ -AREA TO CRIncAL is E \ / / 5/& L/AT 1 /� 1 A v i �� ` • ' _ / ' 1 V sa / \\ \ - - del �♦ - / \ EDIMENTBASIN \ \ D NOTE: CONTRA TORT SLOPES ,o o r (n O t1 \ f-�C r ti .♦ \ ° / ^ I ENSURE POSTIVE DRAINAGE \`' \ LU � O \ y o ♦ / i 1 7 44 ACRES ♦!� O t--t J - ♦♦♦ a.6 9 i C - 1 I \ \ / / L .♦ ALONG DIVERSI N DIKE \L9OVDOT CLASS Al LINED DITCH �! DC V D \ F / / b / P 0� vv _ D- - _ --- ---v �'♦♦���'�����TO STORM STIR T�' pnM\w%WIRRE �, \ 6�5 "\ _ ��\I A \ - A�A��1/fir �' 0 O V - - -- ♦ss / / / // 9zo-__ / " AUPPORT' Op DA=1.zoAC v ♦ A I$ H_4 Z WIRE // ' // °�� / "'" " u+m �;A. \ VDOTCLASSIISTONEI/ \ s D A jVLE� OTE: CONTRACTOR TO - - Sf- / / _ _ �� y4 Ip e \ (q ENSURE POSTIVE DRAINAGE _ / / / w � � \ - z.Bya"�Z \ OVERHEAD / ALONG DIVERSION DIKE SUPPORT/ ;' / / / - - r " - \ L=3o, W UP TO874' 5 ♦ . \ UTILITY / o �. / _ U Op�o� \\ --- -CONTOUR LINES g3o PROPOSED L MITS OF 9i2 _� / / VDOT CLASS �I LINED e J v / --- NE / -DITCH o t r IS _-DISTURBANCE=16. ACRES- ° DITCH TO STORM STR6'. \ , \ - DRAINAGE \\ ` \ ! 1f� ; / - W Y Z 1 // i \`�\ \ \'\� \\� 1 6 \ I \ � �I\\\. / / � /// ✓ /// \ � 1 LU W Q / / v / A �`� a4 / v V Av __ DISTURBANCE - ACRES LU LU I _ v -- // //- ---- PROPOSED LIMITS OF \ \ � / D URBANCE i6.g3A I � � / � Ul VDH \ I � ��- - i I i -, � � ��, �� '- X�,/ � �\ w � � � \\ I \V vv / (/ / v/ / / %/// // � / � \ V l _-_-'�i / / / v v y ` v - PROPOSED FENCE sLOPEs B° - MONUMENT \ \ / I I � / � � � �� � - // / ' / / /V - cRlrlcAL i� ow V � � \ �� A � v-- _ % / // / � W V 69 / v - AROUND SEDIMENTI 5 ti \ / / / Z Q 1 -'o v v � \V / / /I� OT3v / / / /, � � � _ �- , \ 1 \ / /� / / F V i \ / // � � \ � -- TRAP 1 � '+ti � � \ l \ \ � / / / r J // 1 \ � O ( CKTON CREEK LLCv I/ 4.56ACRES U) O /b�8504,�G63\----- r -_/ s i / / 1� ✓ - - NOTE: SILT FENCE SAFETY�y- / µ* \\IN/WIRE � \\\\ ' U FENCE, AND TREE PROTECTION \ \ - NOTE: CONTRACT R TO . '' ' ' \ \ \ \ SUPPORT \ / // I \ \ \ \ I W ADDITIONAL LOD FOR DRAINFIELD __ _ _ __ -SHALL BE INSTALLED AT LIMITS \ \ \ - :. ' " \ \ \ / INSTALLATION ONLY. SURROUND DRAINFIELD OF DISTURBANCE. THSE ARE \ \ \ \ \ 8go __ ` ENSURE POSTIVE DRAINAGE *" ,/. " ;' �M y", . •n • \ \ \ \ \ \ PROPOSED FENCE ADDITIONAL LOD FOR DRAINFIELD / / / / / ` \ \\l - ~ W J B9°--- \ \ \ z` AROUND SEDIMENT / r 1 \ (I) LOCATION WITH SILT FENCE (TYP.) \ \ \ _ -'ALONG DIVERSIONIDII�E / /, \ \ f /\\ - -� % / - - - OFFSET FOR GRAPHICAL \ \ - _ - - - / / INSTALLATION ONLY. SURROUND DRAINFIELD v MQNUME T - - - /� TOTAL ADDITIONAL LOD = z.5i ACRES PURPOSES. DRAINAGE DIVIDES _- v v _ PLEASE SEE DETAIL SHEET 8' A A -� \ \ ' / FOR SEDIMENT BASIN>'S� / 1 / Y s " \ \ �� \ \ � BASIN LOCATION WITH SILT FENCE (TYP.) �\ � / �\ I I I \ \ Q v v FOUNb� / �I _ �'/ / / / / ARE MEASURED AT THE LIMITS v v A - v ` TOTAL ADDITIONAL LOD = z.SiACRES OF DISTURBANCE OR vv��,�- �- DESIGN DETAILS i Sg 116' LE'DIVERSION DIKE. CRI131PCAL SOS \ I \ N RtTICALSLOPES T 144 FOOT LONG AND � 4FOOTHIGH BAFFLES / - ---- -- -- ---� -- ---- ---- - F _ VDH FREE T \RH)C n' / - - - - - - - - �VDOT CLASS AlSTONE _,. , . ..� '`V \ I U s �° NICINUMENT \ \ \ w P �\ ---- FOUND \ O w - T-A 69-19A� -- ; 4�J7 C� V�A\ %MEil�1��U1MTssENT- - - - - - - - - - v-- 1V1Q�R�rd��MnEPLT ,STq - IS v Av / /' GRAPHIC SCALE cos No0. � --FOO-ND- - - - - \ _ _ �-S C - - - - - --v�+.��EL. \ \ -CRlT ROV.Trl- - - - _..� - CRITICAL - ' / \� �. J SEPH ! \ EY-R._I -S - - - - _ - - �� \� - RSA \1 3 --- -_� _ SLOPES _ _ _ / VDH ` 222207 _ _ �_ _ - - _ - _ \ 80 0 40 80 160 320 - - j-- __ ��\\fig _ \\ __- --- -- ---- 8' WIDE_TOP OF DAM -Nam- \ SCALE 21 ACRES �'��1 FOUND-, / 1V10NUM 1 IN FEET ) \ SHEET NO. 1 inch - 80 ft. \ \ LW1 - \ \ VDH 6 EROSION CONTROL HANDBOOK EROS/O I &SED/MENTCONTROL — / / / IIII \ 1 \ \ \ \ \ / — — — — — — — ` \ \) \ \ \ o \\ \ \ \ \ \ ! \ 1\ 1\1!\ \ '. \ \ - \ 4 1' ! ' HANOBA EROSICIFICATION NUMBER SCCARE S CRS SAFETY FENCE 3 of .M6�-6L I T.M.69-6C_- ------/- - CONSTRUCTION ENTRANCE 3.02 STtARTTAY ORSMACK \GIBSON, EVERETTE JR \ ( 1 \ \ A \v O� SCLI%lN�S, Z CONSTRUCTION ROAD STABILIZATION D:6.546521FIELDS U Lic. No. 035791� D.6:�4150/07 PLAT 1.07 ACRES �77-//1/4/23Z k SF �f �E iE SILTFENCE 3-s o lP � v\\ / — /� // �/ �/ // i / // // // / // / / �//// //// /— 1\ \ 1 \\ v�\ S\\ A\ \�\ V \VA i��\ A�v�\ \ ` —ti,— a ` � r _m �,•� a aby i��/r �k a O IONAL oSTORMORAININLETPROTECTION 3.07 �ZyGti d ClP CULVERTINLETPROTECTION 3.08 _ / / /// A V A V — \ V v - m _• _ r — \ \ 8g — \ \ \ /gym IS�..._...1 i / TEMPORARYDIVERSIONDIKE 3.09 � / \ , T.M.69 19G ov // _ (I / Ps V �I ----- �W-It-�--�� TEMPORARYROWDIVERSION 3.11 v / —REVISED LOT 6 A V A v A ;v r -" ��,� �� �"\ .�"� — I T.M. 9-5 / / / �. CRITICA�° Vv ��.A� v ._ — i / 1 / I ( /. A - - - / / / / STvOG�TON CREEK LL v v v v - ' stores 2 ��V _ ��� l MCCLO NAHA / I / / / / J \ V A v ��v - 33 v� v ---- - - 2.63ACRES v v v�v� v�sv��— ��// _ ���� FIELDS OP \V V A V A v ST O SEDIMENT TRAP a — _ ��� r— — v A sbe m , / \ V A "Vv--�// D.8�04 PG�61� . v \ vv v_ ��///�tivw 3.14 \v_�=— — �� —/ // VAA ♦� /r♦♦�♦♦�A VA fJv�4�QRF�f��/ AV A\ \ V SB SEDIMENT BASIN♦♦ / /I ♦ Of �♦ v v _� 4 �v �� ��� J ���/ ����-- \ V A\ r / ♦ ♦ A A AVO ° v� /'--- ¢ \r \�\V �A� m A-- / / /// / a�� m 06H+�+� _ . s\ A A Q % A _ / / OP OUTLET PROTECTION 3.18 // / / \ \ \ v� — �♦ ♦� ti, f \O \ �p = / — 0 0 0 = e e ♦ � — � \ \ \� \ � .•\ [� / 86 VDOT CLASS AI ST 5'---T--� w U U U / — \ ♦ \(( `4,, O \ \ �\ 'r — ,VDOT CLASS AI STONE L=3z', Wi=6', Wz=aS' he RR RIPRAP i / \ %[♦♦♦♦ O >r OP r _-� z ¢ v J J J 39 —__— \ \V \ � \ \ \ _ ♦♦ ♦♦ \ —9.2 ,� � \ \ L=a6',Wi6',Wa=a8' IS-___ __�,/w■ — A / / / // / � � ♦ ♦♦ � v / — — — eA �� \\ 1V A��. �" Vim•. '`i � — � _\ _ I H F � � CD 0 ROCK CHECK DAM 3.20 A V / I / / A \ V V V ♦ TS TS / // / / / A AV V A V - ♦ ♦♦♦ A Dr----- _ ♦�'�� ram\ ♦ ♦ V \ / ♦ "�o r '\\� \� \\\� \ A\A��\A \\� \ �( --- -7 y -— _1 co USEDIMENT BASIN I-1 8ACRE5----oTEMPORARYSEEDING ° J¢ mJ¢ mJ¢ o O - - // - -' A A \ v -- ♦♦ V ♦♦♦9 ' ♦♦♦ O V1 A A FO z O z z z PS PS PERMANENTSEEDING 3.32 \\ // — — — \ \ \ \ ♦ \ — — - - — — — — , O - ~ > ♦♦ \ \ - / /gyp \ u! \ \\ — — —' i �\ `♦ \ \ 9Zz- — _ _ PS za-- - / / /O ER SION AND SEDIMENT CONTROL PLAN PHASE IIIA > > MU MU MULCHING \�\\ / / _ _ \ \ \ \ ADDITIONAL LOD FOR DRAINFIELD ,�♦� \ \ _-- ---__-_- - - - / / / 9 SCALE: 1" = 8o' W m m m 335 \ \\ \ --- - -- - --- > > \\ _ \ \ \� LOCATION WITH SILT FENCE TYP. ♦ ♦ ♦ / °' z � _ TREE PROTECTION 8 A � _ - ♦ A ' 9i8- — � / / O � � � \ _ v i — \ a ti / INSTALLATION ONLY. SURROUND DRAINFIELD / / TOTAL ADDITIONAL LOD - z. i ACRES \ A\PPROXIMATE 4 V // v v v v` AT ©N STI�EA A r \ \\ v v AV /// �� -_=�� v� 1 s v �`. A / - -,/. II LI \ .• _ vv v v vvv \ _Av — �A v v �� / -- -----A�\�DC OC DUST CONTROL 3.3g \ \ \ //� \ \ \\ \ \ ` \ \ _ BM + + + SOIL STABILIZATION BLANKET 3.36 , \ V A V V� \ v \ VA �� v A \ \ , \ 1 _ V . ADDITIONAL LOD FOR DRAINFIELD A� PS \ aP ___-- BPSVA�\ / v vvv v\ v' _ vv INSTALLATION ONLY. SURROUND DRAINFIELD \ V A CONTRACTOR STAGING AREA WITH LOCATION WITH SILT FENCE (TYPJ V / v V� \ b� \ VA A \ 1 \ DOUBLE -WALLED FUELING TANK - v v v TOTAL ADDITIONAL LOD - 2.52 ACRES v \ v A A I / -/_ + v \ vA \�v sv ♦ ♦ -/ / ♦/ / AAV V A rV H I DUMPSTER W/ COVEMONUMFN AND PORTA-POTTIES v E Oil 17 \ V A CONCRETE WASH \ V / o-' A A CRITICAL V A V v V ♦♦ V A VA \ I \ \VA A A V v v v A /, - w/WIRE / v y �stores ) \\ - OUTAREA ����\v\SUPPOR VAVA� Vv� 6"HIGH WEIR — / / ♦♦ `N N N N DIVERSION SUPPORT ✓ A �\ ��. A' �� r VA �A V A ��� v / CD ♦ ♦ A \ 3 / �• A A v w - N DIVERSION AND DIV w/i'HIGHSIDES \ \ ON DIKE 11 Di �\ - / A �� v V A �� \ �\ Vv V� / --� /\ / �/ ♦-A\I 1�• \\V / T.Pv vv v`� ¢ n�i n°�i n�i o l � � PROPOSED LIMITS OF V / A� S� TOSMALLSEDIMENT TRAPPING DEVICE / ( \ - � � y \ V A / � J / FOR CONSTRUCTION ENTRANCE DISTURBANCE -16.♦ ACRES (// / / / \ V A KER II V A V o 0 0 0 CSLIOPESL \v v vv vv v V v v \ v r�// / - ' / / v v / ♦` / Q / / r \ \148 AC f A v v v vvv Avv ► 5 0 / v % / A I v 69-6M � � / I v � A `� �v,vvvv v `, ► ,, I /� / MAN TRUST I �I AF PS 1 V y VA A V v A\ v v / / ♦ / QED LOT 7 0, v 10 T _ ` clr AA \ V v vv - o p5 v �� / f / V A VA V I I11�11 4733�3 PS -_ �' cl \ ( �� �V v vv v A ► PS / / ► / A v - v I I �� - v vvv.v v / �� I b �� v� I 21 LAT - PS v ���\ v A v ` ► ♦ / I o A /D.QQ B.4456 444 I / �� \ \ \ \ / / ► 6.3530-23 PL 4 � CY) ► \ d` SF V v ► r ' / v v v v l t I / / o •V A A �A �� \ iz'x7o' MIN li / S �� CD 6'HIGH HSI W/�1VIRE �A V � A V � _ i / I / A \ l v A Q CV "'NOTE: /� A I / / ► sa w/a' HIGH SIDES V q C I / D D �♦ \ � I I \ SUPPORT �_\ 88�. \ � � h' a \ -__ �� / -- / IIIII I°` ��LL�•\r � = l \ Gl \ \ Y� NOTE: THIS CONSTRU&ION I I / / / 1 \ \ / * (, ( / \ \ a, - / W/ WIRE \ ► // I (I I I I I o \ per\\ \\ \ \ \ \ \\ M ENTRANCE SHALL BE INSTALLED, I I ` 1 DA= .o do I / A• F \ \ \ /- - - ♦ ( \ \ \ ', I CIP \ 4 \ / SUPPORT 1 J I I -A.ED AND MAINTAINED BY J / / V ♦♦♦ v �, v v \ \ V v ♦/ _ / / I I v Q m 5 Hb�I N Q THE CONTRACTOR. ALL / V ♦♦ < A\ �\ � I / A '? lt� ', A R C) CJONRTVSLj.TAMLR0(UA6 OCqT6NIO/Lf G EN \Y/ T// R/ A// F/ /FI IC/l IN 1 I THIS, HIS/ //aI\F /1 \j� v \v` ` �A\ V \v- A vv v♦ v♦ __ -- )g\4\Y♦V II I ♦/ / �A w, \ l, /am•►�I I JIy � voV j\v\ VV / ,♦ v—. ,A ♦. 01 .v Qv AA _A V \ vQv \v 4\ \ ♦a,7 \ I�r oA \ �♦, 904AD,A. \_ o r \ 5 ► y- 994 9� �5 �',A� \AvAv -O 5\I1 � I I ♦� I /I/,II k , ♦ /I r_I :III I IIIIIE� IIIN1 I 1 I I II lI II I.IIII II rr ll 1'r\� �e•\ �v VLL'CNJJ_7)WASHRACK AREASHALLUTILIZETHIS o 01 N CONSTRUCTION ENTRANCE. � LAx SF DRAINAGEAREATO oQ DA \wfWIEDIMENT BASIN i= 158 ACRES E ORT IGHSIDES8HIGH LL71 /F2 N6NEEPS C ; O rZd-1 i - - l ���A ��V v �A��\ Av \ v�_�c- -v - - -- --- - -_ / -g --/'' //I� - / -/ ,. -♦- - -♦-� �♦ I / II V VPS �� A \ \ \ ♦ I �A\.\\\��\!F IV e � .. ���: PS ' / j/ / / AA 1 \I � \ \ ► ► - - � \ �—� i /0 1 Q CRITICAL S` 5/& 6 T) � SLOPES �0 OL9 Ill V 6IS god O v�_ - - �/ pVAA UPPODorc�ssusro�\ v\ ,7P� ► / v v �� /`pIjLEIS/ vV v0 j ��? \ \ - SUPPIORT /j / / / - _ r --- // I \ NE, ►, _ M v OVERHEAD / / Q O _ ---_ , � / z � / 11 I I \ ` L 3o',w urroa7a' ` \\ M v ) UTILITY I l o " �CO U Q — ` — -- — — _ o - / / / 9.tz... - / / 1 \V A / CONTOUR LINE 1 / Al€' -- - gs APR /'// / v / / LINES °� /� Z O \ ----_I DISTURBANCE=16. ACRES_ v / A��� ��AA\ 1 VAI ��1 ► v v �_ I / �� �/ �. IS PROPOSED LIMITS OF Cl) I_ 93 V A V A\OVA\V`IliA�`\ - vv \ )/ LLJ \ PS v ��� I �I �/� / ( /'� W / 1 I IF/ A // �� ��- �� / / / y \) A 1 \OVA\\VA 11 - - at A V / / l // ' // �t - 0 \ / / W / / / / \\ \ PROPOSED LIMTSOF\ \ \ %�/ / / /�j / ( j/// / � w veo�v V /i _ (� \ � � __ ____ � - - / / / , \ � � DISTURBANCE =16.g3 ACRES � MATS LINE TH S HET ♦ � / // < / // // / 1 I � VDH ( / I 1 I / v ��� /-,/ ' / / / / // vv v �- / I I i \� 1 % / I v A v i /% / / / U MONUMENT` 1 vv I I I / v / ,�' �'/ / / / / // v v - — / CRITICAL��� A \ \ A / / / / /) W FOUND \ / \ -- - // \ \ stores �� ,= / i I \ �/% / R'r/ISEMISS D$QT3� � b C5504 �Gk4 - - / / - // / AV \ �V A V \\ 8��� F A\ l'ST _ / / / /// /i / /V A w 4.56/�CR� v� / �_ / , / / � � - � 1 �` 1 � \ /�N�J N I � P LE / , NOTE: SILT FENCE SAFETY / / i FQUNI�V I Il : v _ w WIRE \ // I �J � x-,��, �� / ✓ V / \ \ -SHALL BE INSTALLED AT LIMITS v - a� / / / / / �" '� 1s4 V A) \ / ) V A\ L FENCE AND TREE PROTECTION v � v \�\ � A � r`/ SUPPORT � 1 A V // � I I \ _ _ INSTALLATION ONLY. SURROUND DRAINFIELD __ \ ADDITIONAL LOD FOR DRAINFIELD v � / .\ ; �. Y \ / � // ✓ \ _ LOCATION WITH SILT FENCE TYP. ' v v r� 8go-- / j / / / / / �M A / / k �` V A \ PROPOSED FENCE OF DISTURBANCE. THSE ARE v v �_, / / / � � -� �� � .ADDITIONAL LOD FOR DRAINFIELD / / � W V v _ - ( ) / ' v� �V / / / \ AROUND SEDIMENT INSTALLATION ONLY. SURROUND DRAINFIELD t (/ I / 1 VDH / V / - - i / / OFFSET FOR GRAPHICAL MONUMENT, - _ / TOTAL ADDITIONAL LOD =z.51ACRES \ PLEASE SEE DETAILS HEET8 ►t ► ' \ BASINPURPOSES\ ( Q \ _ T _ /_ / ARE MEASUREDATTHENAGE LIMITS \ - \ / LOCATION WITH SILT FENCE (TYP.) \ I _ - / ; SIN 1'S_ / s A V A \ FOUND vim_ / TOTAL ADDITIONAL LOD=z.51ACRES IVIDES OF DISTURBANCE OR' v / / DESIGN DETAILS - / /� i e c \ . \\ + / �' / / �ii 1 I1� A V A l C) _ _ _ ' / / I i \ i / _ FOR SEDIMENT BA IS DIVERSION DIKE. V v -- / // I A / ► i \. I V vJ �� C��rl 'i 1 V A --Rrn/iiSoPes ---- I �) �v���v-444FOOTLONGANDIIIIV�AVA\\\\�\ \ I N / / / T IG — / Vo0�CU55usioN -- FOO H H BAFFLES VDOT CLASS AlSTONE / I b9-15 \ \ \ _ - VDH FREE b\ G — --- — — — --- \ -- OP L=�e', w�=e', w:=�a' _ 6sa� _ I S / �r 0 U M E N T H \ \ \\ I w - ---- \ --- V_ _ -, ND R�§ \ _ NA w Af�FF - - _--- - _ _ VDH � FOUND o --- - --- . a. \ N Ln ' JQ N iFAONUMf1�T�-- — -� , ` _ - - T.M.69�9A� - MONUMENT ST -- IS / d . i — - \ _ -JUST JOSEPH S___CTT - ATE R -- - - = - _ \ GRAPHIC SCALE cos No. 47.729 AC FOCJ(�0 --'�—CAS 8�- _ FOU�QD _� ��_��ARZERS �Ur� - _---- — ClsLoaEs = J - 222207 OP_ VDH so o ao ao sa o __ ------------- --- lW* _ WIDE — MONUMENT OUN �cAL�o� — — — — — _ _ — — \KP`B,3_ g�\H I - -- 8— - — P F — I O DA — — — — — �� — — — — _ _ — — \ \ \ \ \ \ RIi�2 \ \\ I �2'�'�-H r — — — - -- - ( IN FEET - _ \� U\ —��\ ----- --\ �— _ \ 1 inch = 80 fL. \ � I�l� d \ SHEET NO. 4NrilION ENT VDH 7 / \ X X ri X Sediment Basin Design #1 X v V A A _ X J�N v �� v TH //'♦'�'�- X X X /� `�( -A, X �/ X \ X \ \\\ MIN. 1' W SPILLWAY CREST OF EMERGENCY X �/. \I ., n 1 \ \I \ \ \I \\ \\ \\ \ \ \ \ \\ \ \ 0� E X JX drainage area (acres) 15.8 2 WITHOUT SPILLWAY / / / X♦♦ X X X X v PROPOSED FENCE A BM X ( A V X X basin volumes: (using 2' contour intervals) DESIGN HIGH WATER \ \ / X X AROUND SEDIMENT BASIN (25-YR. STORM ELEV.) \ X X i44 FOOT LONG AND i� X X X X '\ � \ elevation (ft) contour area (sf) wlume(cy) \\ \ \ \ \ SCOTT R. LINSZ i 860.00 5945.0 0 °'D -- - - --- -- X / X ♦ X / / / \ \ \ O / i X 4 FOOT HIGH BAFFLES �C X f \ \ \ X X ♦ X X X X X X \ -A \ 862.00 8131.0 519 RISER CREST X X X \ X \ \ MIN. 1 o X I I / \ \ U Lic. No. 035791 � X \ \ DR s oRAGE DEWATEMNG / X ■/■ I \ \ 4 864.00 10599.0 1211 DEACE X X/ 11 a■l■yal I Al A A A AV A \\ �o� 1�4�23 F / / X ♦♦♦♦ X X X X X X X \ 866.00 13348.0 2096 X / / i/ / V A \ cg�7 �Oti \ X WET • STORAGE X L'' 868 6' CLASS I RIPRAP X \ X 868.00 16330.0 3193 iX X / W. oNAL / \\ A X\ 0.00 0.0 0 S T X X - / EMERGENCY X 866 SEDIMENT STOWE POUT / I / \ \ X 0.00 0.0 0 ( ro 3s cY°P�ncREceD X / / / yc I A i _ SPILLWAYW/ r♦ / \ XV A FILTER FABRIC I� I \ / 864 \ UNDERLAYMENT \MIT/ X \ I/ (DEPTH=z') X I X / 862 X \ X\ wet storage: X / X I / / 4a SIDE SLOPES & / • / - \ X \ wet storage required (cy) (67*DA) 1059 design high water 866.96 X / X °ry CREST ELEV.= 867.04 / 86o XC\,z dewatering orifice elevation (ft) 863.56 top of dam (ft) 868.00wet storage provided at this elevation (cy) 1059 top width of dam (ft) 8.0 X / O �available volume before cleanout (cy) (34*DA) 537 bottom of basin (ft) 860.0 cleanout elevation (ft) 862.03 approx. bottom dimensions: 116'x55"X/ t \ distance from cleanout to office (ft) (> 1') 1.53 upstream face slope: 31 i//downstream face slope: 31 y ' X / �Zdry storage: X X//f o Z) \dry storage required (cy) (67*DA) 1059 baffles: YES X w U U U principle spillway crest (ft) 866.04 length of flow, L (ft) 114 JJV dry storage provided at this elevation (cy) 1059 effective width, We (ft) 117 X v _ �X X 9 �J o X < Q i X \ X\ diameter of dewatering orifice (in) 8.0 L / We (baffles required if < 2) 1.0 X ` x ` a m w w w X i \ \ X diameter of flexible tubing (in) (orifice+2") 10.0 XI / tjF \ X \ +� O � ¢ m m m LIv - X v X pE Uaaaa in / X \ collars: YES I \ �H/� m �C �■ 1 X \ X X runoff depth of water at spillway crest (ft) 6.04 X / \ X \ \ X V l z z z z z / J 1 y X C (use 0.45 for bare earth) 0.45 slope of upstream face (Z1) 3 / X \ ♦ i \ n O p Lri o O O X \X i Z(min) 132 yr 3.6 Q 2 r 25.3 length th ofe of bbarrel rel(n saturated zone Ls 144.66 33%X X \ \ ♦ ♦♦ r In m yr In X X v Xv I II X -A = / ; ♦� 1 -A 1 X 125yr 5.3 Q 25yr 41.1 number collars required 2 X X \ \ \ +�X \X X \ i D A W J Z)co ♦♦♦ * X I X dimension of permanent collars 4.2k4.2' X \ X\ X X \ ♦ !!,•` En Ln Ice o o = X / 868 X I principle spillway: X \ X X ♦\ F- N o+ v I■��■■��������Nunn- X available head (ft) 1.00 emergency spillway: YES \ X X \ X ♦♦ z �T O [] VDOT CLASS AlAI STONE,_____ ��� 68 X X \ x \ X X ♦\ I � r � X XI diameter riser (in) 36 required capacity (Q25{lp) (cfs) 4.1OC) \ � \ \ X � I ♦♦ �\ X L= 2' W1=6' W2=1 ' X X I spillway capacity, Qp (cfs) 37.0 bottom width ft 6 �♦ \ X 3 T 5 X X O ` � \ x ♦♦\ EDIMENTTRAP#1 DETAIL i x I ♦�66 T 8' WIDE TOP diameter trash rack (in) 54 slope of exit channel (%) 10°/D x r X ♦�' X X X OF DAM = 868.00. X barrel length (ft) 74.94 minimun length of exit channel (ft) 32 �� X ♦♦ SCALE: 1" = 20' ♦ ��• 864 , x,� / X f. ' p I X� head on barrel through embankment (ft) 8.04 crest of spillway (ft) 867.04 ���., x ♦♦ x + X X �♦M�Inuutnln�■■■■�■■�/�� X X X 862 X diameter of barrel (in) 24 X X X X X X I X X � X � X X Sediment Trap design #1 , X � X j X X X 1/1 X 86o X \ drainage area (acres) (< 3 ac) 2.00 °AR ,c '` X X,c X X x $ g X X \ NOTE: PLEASE SEE SHEET is FOR OUTLET PROTECTION I X trapwlumes: �� cREsroFsroNEwEIR l j X X x X X X X X X X 36 DIAMETER 4 DIAMETER X X x H��x - F)FH�X c x'�x x DIMENSION CHART FOR SEDIMENT BASIN #1 (DIMENSIONS elevation(ft) area(so wlume(ct) wlume(cy) GROUND X " TER TRASH RACK. ARE THE SAME AS DETENTION BASIN OUTLET PROTECTION) 896 1339 0 0.0 N N N V1 X X RISER CREST=866.04.RISER TO INCLUDE A 8" DEWATERING \ 898 1954 3,274 121.2 DRY STORAGE - g VARMPUE' Fw- o w o v X / -ORIFICE (INV ELEV.=863.56). RIDER TO BE SETIN A MINIMUM 900 2695 7,903 292.7 a N N N o jr OF 30" OF COMPACTED SOIL OR AGGREGATE BASE OVER A 8'X8'X3/4' 902 3553 14,131 523.4 0 CD 0 0 THICK GALVANIZED STEEL BASE PLATE OR SET 6" INTO A 6'X6'Xi8" THICK \ PERMANENT74.94LF 0 0 0 0.0 wersroRACE z4" RCP BARREL REINFORCED CONCRETE FOUNDATION. NOTE, IF STEEL BASE IS USED SPECIAL v `MAR auvArzD) ATTENTION SHALL BE GIVEN SO THAT % COMPACTION IS ACHIEVED OVER \ `PEER CLOT" �W o x - -INV IN=860; INV OUT=859 THE PLATE. AT TIME OF CONVERSION TO DETENTION BASIN RISER TO BE \ E N 1.33% SLOPE _ wet storage: - � 13E PLATE 3.13-I COARSE AGGREWTE� ClAss I RiPRAv SEDIMENT BASIN #s DETAIL CONVERTED TO PERMANENT RISER STRUCTURE i - - - - �,\-- \ .,, � - _ - wet storage required (cy) (67*DA) 134.0 NOTE: SEDIMENT BASIN WILL BE CONVERTED TO DETENTION BASIN IN PHASE IIIA Sediment Trap design #2 I v A ♦��, � V A A \ � V A 1\ \ I \ \ •♦♦ \ \ \ \\ \\ \ drainage area (acres) (< 3 ac) 2.92 ♦♦� \ \ trap volumes: \ \ 1 1 �I♦�\ \\ \ elevation (ft) area (so wlume(cf) wlume(cy) 894 756 0 0.0 \ 1 A A 896 1716 2,407 89.2 898 2964 7,031 260.4 \ 1 1 X X X X •♦ \ \ 900 4500 14,442 534.9 \ X ♦ v I 1 \ � X \ X X X v \V � � ��� \ SF �' wet storage:X \E) wet storage required (cy) (67*DA) 195.6 \ X \ bottom of stone weir (ft) 897.24 -AX \\ \ 1 \ Op \ \ wet storage provided at this elevation (cy) 195.6 � \ � \ \ \ \ O� ` w , I � slope of wet storage sides 3:1 X \ \ \ \ dry storage: X X \ Cps.\ D \ dry storage required (cy) (67*DA) 195.6 a \ \ co ` crest of stone weir 899.0 X \ \ fs U P P O dry storage provided at this elevation (cy) 195.6 X \ slope of dry storage sides 31 O I V X I O \ GRAPHIC SCALE bottom of stone weir (ft) 898.15 wet storage provided at this elevation (cy) 134.0 D 10 20 40 =- slope of wet storage sides 2:1 ti weir length (ft) (6xDA) 12.0 dry storage: bottom of trap elevation (ft) 896 f>7 V) ( IN FEE`' ) dry storage required (cy) (67*DA) 265.8 bottom trap dimensions: 37X41' C) Z t inch = 20 rt. crest of stone weir 901.0 top of dam elevation (ft) 902 N O dry storage provided at this elevation (cy) 265.8 top width of dam (ft) 6' ly slope of dry storage sides 2-1 top trap dimensions 58X66' co 4�t Z J NOTE: PLEASE SEE SHEET 6 FOR SEDIMENT TRAP #4 DETAIL Q AND CALCULATIONS CD OACNN_ CREST OF STONE WEIR GROUND \ am. DRY STORAGE WET STORAGE (EXCAWIED) -SEE PLATE 3,13-1 weir length (ft) (6xDA) bottom of trap elevation (ft) bottom trap dimensions: top of dam elevation (ft) top width of dam (ft) top trap dimensions X ON I \ V A \ Sediment Trap design #3 / X X \ ♦♦ \ \ \ \ drainage area (acres) (< 3 ac) 1.44 X I Q`c \ ♦♦\\ trap volumes: X /X 1v ♦♦ \ \ \ elevation (ft) area (so volume(cf) volume(cy) > I ♦ \ \ \ 890 1408 0 0.0 X ♦� ` \ \ \ \ \ 892 2160 3,541 131.2 O i ♦♦♦ \ \ \ \ 894 3040 8,716 322.8 O j \ \ \ 0 0 0 0.0 /� �y X� X 1 X♦♦ \ \\ \\ \ 0 0 0 0.0 --- X ♦ \\ ��� \\ \\ \ wet storage: wet storage required (cy) (67*DA) 96.5 / C ♦♦ \ -A \ \ \ \ bottom of stone weir (ft) 891.68 / X X X X V �� V A wet storage provided at this elevation (cy) 96.5 slope of wet storage sides 2:1 dry storage: dry storage required (cy) (67*DA) 96.5 f 0, , crest of stone weir 893.0 x\�;�■„■■■„■„■■■„■„■■■„■,�,,,�♦�� .L` i dry storage provided at this elevation (cy) 89.4 SEDIMENTTRAP#2 DETAIL slope of dry storage sides 21 __- g10 SCALE: `" = 20' ORIGW GROUND GIN. -SEE PLATE 3A3-I 17.5 894 14 X54' 900 6' 50MO' V VARIABLE CREST OF STONE WEIR WTAARIE• DRYSTORAGE WETSTORAGE (ERGVATED) CIOTR OPoGWC GRw"D `FILTER ELN. CCARSE AGGREWE•' C1 55 I PP P weir length (ft) (6xDA) 8.6 bottom of trap elevation (ft) 890 bottom trap dimensions: 22X64' top of dam elevation (ft) 894 top width of dam (ft) 6' top trap dimensions 38'X80' rn I� U N J uNla- � j SEDIMENT TRAP#3 DETAIL `\ \+�� \ / °� // J > Q SCALE. 1 - 20 \ V A v J vvvST3 � P o W 0 � W C L9 P__4 o > z \ \ \ X \ c \ J q X, Z Q v vX X x I CID FENCE \ v v 1�� X X v v X X vXv v X X-- _- -- - U D AROUND SEDIMENT Ce TRAP, v . v6' WIDE v v��'��: vv X-- -- _ L w z \ \ ♦ X` \ \ x \X X X w U \\ % TOP OF \\\ �'' I X - X °° Ul '- \ X �� w LU DAM v \ .* LLi \ X > > Z U) w O 0 \ z V \\ \V A `V J o A �■ram is \\ ... \\\ (3 O WIR\E vvv vv vv�� o V) \ \ \ ... O C] PPORT _ w � vvv vvv ���'`, vvv ���v��1 ♦♦♦ � vv��� 86 a- ILFI JOB NO. C I P 222207 7 SCALE ••�0 SHEET NO. \ 8 X � 1 PRE —REDEVELOPMENT STORMWATER MANAGEMENT PLAN, SCALE 1"=80` \ .iLi.v LOT 6 6 Pre -Development Impervious Area Summary STUA D. TAYLOR SMACK Subarea A, Water quantity D.B.3415 04,707 PLAT Building/Structure 8,600 sf Sidewalks/Concrete 0 sf / Roads/Driveways 700 sf / 9,300 sf / Pre -Development Impervious Area Summary VRRM Limits delineated by ESC LOD, Water Quality Building/Structure 7650sf STORMWATER MANAGEMENT NARRATIVE: OVERVIEW THIS PROJECT PROVIDES STORMWATER MANAGEMENT (SWM) PRACTICES TO MITIGATE THE IMPACTS FROM THE PROPOSED IMPROVEMENTS. CHANNEL AND FLOOD PROTECTION COMPLIANCE ARE MET IN ACCORDANCE WITH MINIMUIM 9 VAC 25-870-66 REQUIREMENTS AND WATER QUALITY REQUIREMENTS HAVE BEEN SATISFIED. PLEASE SEE THE ATTACHED STORMWATER MANAGEMENT CALCULATIONS PACKET FOR ADDITIONAL DETAILS PERTAINING TO THIS PLAN'S COMPLIANCE. WATER QUALITY SUMMARY — — — — — _ — — _ _ _ — — — — — _ — < a _ _ -Q� \ THE BOUNDARY FOR THE ESC LIMITS OF DISTURBANCE WAS USED AS THE BOUNDARY FOR THE VRRM WATER QUALITY — — — — — LL O \ \ CALCULATIONS PLEASE SEE SHEETS 5-7 FOR THIS BOUNDARY THE STORMWATER QUALITY REQUIREMENTS FOR THIS \ T.M.69-6C \ VGIBSON, EVERETT E JR v v v v v FIELDS \ --- 1.07ACRES `9r 0 Sidewalks/Concrete 0 sf PLEASE SEE SHEETS 5-7 FOR T.M.69-19G 0 sf ESC BOUNDARY USED FOR REVISED LOT 6 Roads/Driveways VRRM QUALITY CALCULATIONS / STOCKTON CREEK LLC 7,650 sf \ / / 2.63 ACRES D.B.5504, PG 614 WATERSHED SUMMARY FOR CHANNEL AND FLOOD PROTECTION Area, 1-year Flow, 2-year Flow, 10-year Flow, 100-year Flow, CN ac. Cfs Cfs cfs Cfs DA A (Pre-ReDev) 61 15.73 3.94 8.94 1 27.72 73.56 DA A (Post-ReDev) 67 15.73 1.78 8.47 1 24.83 85.72 VDH MONUMENT FOUND VDH MONUMENT FOUND 1 = AREA OUTSIDE OF DA 'A' BUT WITHIN LIMITS OF DISTURBANCE (5.59 AC) 1 T.M.69-6M REVISED LOT 7 E.C.ACKERMAN TRUST D.B.4733-23 D.B.4733-20 & 21 PLAT D. B.4456-444 D.B.3530-234 PLAT oA DEVELOPMENT ARE MET THROUGH THE BEST MANAGEMENT PRACTICE OF PURCHASING NUTRIENT CREDITS. A MINIMUM PHOSPHOROUS REMOVAL RATE OF 5.66 Ibs/yr IS REQUIRED. THE DEVELOPER WILL PURCHASE NUTRIENT CREDITS PRIOR TO 'fie ,� � ,- \ THE ISSUANCE OF A LAND DISTURBANCE PERMIT. o e "" LL LL `� e e "" �. " �- �\ \ \ PLEASE SEE THE ATTACHED CALCULATIONS PACKET AND THIS SHEET FOR ADDITIONAL DETAILS. WATER QUANTITY SUMMARY /°A 1 3 THE STORMWATER MANAGEMENT PLAN CONTAINS ONE PRIMARY DRAINAGE AREA, SUBAREA A. THIS DRAINAGE AREA r�R T.M.69-51B CAPTURES THE VAST MAJORITY OF THIS PLAN'S PROPOSED IMPERVIOUS AREAS. CRITICAL 0, C'1-//J��S MCCLANAHAN, DENISE IN THE EXISTING CONDITION, THE MAJORITY OF THE DISTURBED AREA DRAINS TO ANON -PERENNIAL STREAM, WHICH HAS NSLOPES �- r `' r �- �- LLLL LL �.'T[JR T/VFO FIELDS NO STREAM BUFFER, AND FLOWS SOUTH TOWARDS A CULVERT THAT RUNS UNDER CRITZER SHOP ROAD (ROUTE 151). AS 2.80 ACRES THE LIMITS OF THIS PROJECT ARE MUCH SMALLER THAN THE OVERALL DRAINAGE AREA OF THIS NON -PERENNIAL STREAM, THE BOUNDARY OF SUBAREA A IN THE EXISTING CONDITION IS DELINEATED BY THE FUTURE AREA THAT WILL BE CAPTURED r t �'' Too YEAR FEMA� LL \ \F Rp F/F,y AND ROUTED THROUGH THE PROPOSED DETENTION BASIN. MOST OF THE LAND COVER IN THE EXISTING CONDITION IS ♦ �' FLOODPLAIN ° LL \y LL LL �\4 qQ '�TJ CLEARED FARMLAND, WITH A FEW EXISTING STRUCTURES AND WOODED AREAS SURROUNDING THE NON -PERENNIAL ON soy' STREAM AND BETWEEN EXISTING CLEARED PLOTS OF FARMLAND. ' O ' LL LL e e \ r `� �- ��- r \ THE PROPOSED DEVELOPMENT HAS ONE CONCENTRATED OUTFALL. ITS DRAINAGE AREA IS DELINEATED BY WHAT IS 40 �. " ,��� \ CAPTURED BY THE PROPOSED ROADSIDE DITCHES, WHICH ARE CAPTURED BY THE PROPOSED UNDERGROUND STORM 930 SEWER SYSTEM AND OUTFALL INTO THE PROPOSED DETENTION BASIN. THIS DETENTION BASIN ATTENUATES THE PROPOSED ` \ DEVELOPMENT'S RUNOFF TO MEET MINIMUM CHANNEL AND FLOOD PROTECTION REQUIREMENTS SET FORTH IN 9 VAC �O �- �" ti �LL �` r :'�- 25-870-66. THE DETENTION BASIN OUTFALLS BACK TO THE NON -PERENNIAL STREAM. THE RESULTANT DETENTION BASIN o Q ROUTED OUTFLOWS ARE COMPLIANT WITH MINIMUM COUNTY & STATE REQUIREMENTS. r \. o ♦ �' ♦ f. I e �, I IN SUMMARY, CHANNEL PROTECTION FOR SUBAREA A IS MET THROUGH 9VAC25-870-66 SECTION 8.3.a (ENERGY BALANCE) * AND FLOOD PROTECTION IS MET THROUGH 9VAC25-870-66 SECTION C.2.b. (10yr. POST FLOW < 10 yr. PRE FLOW). COMPLIANCE WITH THESE SECTIONS IS ACHIEVED PRIMARILY THROUGH THE PROPOSED DETENTION BASIN. PLEASE SEE THE ,,� " '� ATTACHED CALCULATIONS PACKET AND THIS SHEET FOR ADDITIONAL DETAILS. ,, \—9zz� WHERE AREAS OF IMPROVEMENTS OCCUR OUTSIDE OF DRAINAGE AREA W BUT WITHIN THE ESC LIMITS OF DISTURBANCE, _ LL �` e. THE PERVIOUS AND IMPERVIOUS AREAS SHALL BE RELEASED IN A SHEET FLOW MANNER THAT IS NOT CONCENTRATED. FOR _ O INSTANCE, LL LL ANCE, AS SHOWN ON SHEET 10, HOUSES ON LOTS 9, 10 AND 17 SHALL HAVE THEIR DOWNSPOUTS OUTLET TO SPLASH — —Cps '� BLOCKS TO PREVENT EROSION, SEDIMENTATION OR FLOODING OF DOWN GRADIENT PROPERTIES. PLEASE SEE SHEET 11 � 92 92°— -920- LL FOR SPLASH BLOCK DETAIL. THESE AREAS ARE THUS IN COMPLIANCE WITH 9VAC25-870-66 SECTION D. I / APPRbXIJVI 320 ,� \ _ g26 — �- �" ATION STREAM ♦ I \ \\ \ \ , / — i ♦ .+QYERHEAD LL e r 920 �,♦ \ \\ O( / so / � +++ +UTILITY / \� \ \ I // _ 9i /+r*+ LINE y 01 \ oo / \ k VDH 9 \�+ I� ° I/V\ \ 9 \ 1'*'* &6 // MONUMENT \ r+, / I I ( /` ` FOUND / T.M.69-51H 9�a 930 \ ++i+'+'+a°, \ 90\�\\\ \� O ,� GATES JAMES P OR ++ ++++*+++� *+ + ++ .*+ . ' I + +'. .a. + + \ \ \ \\\\ \ \ \ ,� oQ 2.148 ACRES ++ +++++ +++ + ++�+++ + +++ * �\ \ /+*+*+ \ e 01 6+ +PES . . + + +� + *,\*+* + *+*+*+*+*�+ +� + *+\ \ \ 9 9 CS ITOICAL \\ \ \\\\\ \ \ / / \ I I I , o �. e °''''' A � U ++ + + + ++ µ+ + +++++ ++++'+'+ +'+ + +'++++ � o+++++++ *+ ''' + _ 11 +*I+'+'+'* * �'� *'*1 + *+*' 8�0. °\ +''++1 \ \ J + ++I1 Q \ \ \ \ \ � + + + +++(+ ++*+ �\ \\\ \ + / V T. M.69-6G LOT 1 FRANK DONLEY & CARLA DONLEY D. B.3380-82, / 85 & 86 PLAT VDH MONUMENT FOUND IF ❑o CRITICAL SLOPES / ° 146'OF VLF w/O ELEy�_i' 954 OFo bNC/ FLC/Ww/ 0 ELF,V. 30' / , 01 ter\ O \ 97 ti / to d ° ° 1\ 9Ai ss'A T.M.69-51 °b GRAVES HOME I F ' + +W* \� \ \ \ \ , \ \ \ \ \ \� `+ C� \\\+' + \\++ + \+ + ++ \ �--894` / \ too FOOT WPo� o `'69 7ia t� s 26.988 ACRES �+ '+'+ + + + \ \ \ \ \ \\�'+'+ \ �J j STREAM BUFFER e S J TG \ 1 \ \ J' \\ \ ++ 1�+ + \ \ \ SUBAREA J J ?o \ ++++ + ++ 1 \ \ \ \ \\ \\ \ \ \'+' '++' I+ + \\ \ �\ 15.73 ac. �69oO \ \ +\+++� I \ \ \ \ \ \\ \ * + 0 \ \ CN=61-\ �4 \ \ \ \ \ �W \\ \\\\\ \ \\ \ \ Tc=0.2Z hrs. \\ \ + +\++\\\\ \ ', 1 +1\:*+\+`�+'+�+'1''' 8s / , CRITICAL \00-6 �- e� 'PO E �` `� SLOPES \ �6 940. \± 1I�+}++ ++ + I \ + + + / / / \ \I \ \ \ \ \ \ +�1 \ \ I++I++++ + +*+++�+, \ \ �� `° \ / \' \ e e yCJ 4+�',*+�* ��/�// /\\ �920 `„ \ \\\\+ \\\\\ \ +i,�+}+�++ ++++,,J Sgo—/I \ \ \�++++/, \\\ "POLE —'/ /' — + \ \ +\++\± l \ \ \ 4++++* + 86\ OVERHEAD �o -932 /+++ f+ I I �+ \\ I \ '++*+ + I \ / \ ` K*+*+*+*+*+*+*+*+++ \ .� UTILITY o \ 1 ) �*+* + + + \ LINES o 9 °, —/ /// / VE + ++ + I 1 +++,++ \ ( \+*: L;+*'* \ +i f +++++++++\=,++ + + + \ \ 1+`+`+`+`++++++++++++++++++++'+ 900 T.M.69-19D /� _� �_ -_- \ \\ // \\\ 1 L *+ / \ -\ 1 \ I 1 \ \ �\ �`*`*�`*` \ REVISED LOT 3 _� /�\ // // �/ \ \ \ \ \ ` - _9°0 / I l II I 1\,1111 II I �\ \\ I 1 \ \ \ I ��++;.`+ STOCKTON CREEK LLC - / // / \ / ` ++++I \ 40 m 4.56 ACRES _ /�\ / \ \ / +� /I \ \ \ \ \ \\ \ ��s�I�+` I 1 \ + D.B.5504, PG.614 - /// \ \ \ / k �` /890 '.'' t \ ++ v i - I \ + IS J f` \ �\ \ /// > r / f +\\\ \ \ \ \ LE to / �t 1 IN11T5_OF ANALY518,17 \� 't+.�+' R / f /i I '\ / �&+1* +%+ +I+ + .\\ \ \ VDH . )+*+*+*+*+ w°+++I++++�.' MONUMENT + Y \ I — j FOUND T.M.69-19A7 MONDUMENT STATE IS `- \ / — JUST, JOSEPH SCOTT & FOUND CRIT ROUTE CRITICAL = _ — VDH ZERS 151 SLOPES — CASEY R JUST (VARIAB SHOP ROAD - MONUMENT 21 ACRES p B 413 WIDTH R/W FOUND HWYP.B.3-2097g `� VDH - --- THRU 211) MONUMENT VDH FOUND MONUMENT VDH FOUND MONUMENT /�'IOOO • VDH MONUMENT FOUND T. M .69-50 FREEMAN, ARTHUR H OR JOANN F 47.729 ACRES it SCOTT/R. CDLLINSZ Lic. No. 035791 � p 1/4/23 ,$i z O U O O O U U U J J J J < ZO E w < < < a m w w w O < U O < < < w z O O O Z H H F z O z z z O (n O O O L E Wor,m m m on U1 (A U1 ceJ F- z � v rN w rN rN rN N N O Q 0 0 0 0 A M rn N 4 co CN � z z U C Q C7) CL N z i LLJ i a > z z � C0 Q LU 0 L~ P__4 LLJ zP__4J WU D � Y o w w z UU w w 0 Zwzo (j O W J � U LU o w o Lu J< O o 0 N U w e° ° GRAPHIC SCALE JOB NO. 40 320 222207 ( IN FEET ) 1 inch = 80 ft. 1 "=80' 9 POST -REDEVELOPMENT STORMWATER MANAGEMENT PLAN, SCALE 1"=W \ i .,v,.v.-vL \ \ � T.M.69-6C LOT 6 Post -Development Impervious Area Summary STUARTTLOT 6 SMACK GIBSON, EVERETT E JR Subarea A, Water Quantity FIELDS ` Building 24,720 sf D.B.5246-521 _ - - - - 1.07 ACRES Parking Areas/Roads 90,150 sf D.B.3415 704,707 PLAT Sidewalks & Concrete 0Sf — — — — — _ 114,870sf // i —__ __ LL LL 01 Post -Development Impervious Area Summary / / oLLLL LL LL LL �• \ . VRRM Limits delineated by ESC LOD, Water QualityyrO \ Building 31,200sf / I �'� •• Sidewalks&Concrete 0 sf PLEASE SEE SHEETS 5 7 FOR / / \ �3p. Parking Areas/Road 93,085 sf ESC BOUNDARY USED FOR / T.M.69-19G \ yo� LL S R VRRM QUALITY CALCULATIONS REVISED LOT 6 LL \ pRF T) T.M.69-516 124,285 sf / STOCKTON CREEK LLC \ CRITICAL LL LL LL LL �\ V \ O T� /p0 MCCLA FIELDS DENISE / 2.63 ACRES 2.80 ACRES = AREA OUTSIDE OF DA 'A' BUT WITHIN LIMITS OF D.B.5504, PG.614 ;� m �''' \ �loF OAR FEIV N� o \ \ F R F DISTURBANCE (5.59 ACRES) / ♦ �1''-.I► \ LL LLLL LLLL LL LL � LLLL oq0 F,yTJ \ / ; �♦ S \ o / ♦ \ ♦�\ LOT 13'++•+`+ + : o g r / / ♦ a / \ 5.O�ACRES+ �� 9 e ♦� LOT 12 ♦ 2.41 ACRES �` 922-� _ o LOT 9 \ ♦, �� ,_ 920 - - - - - -- �II -920- -_ / o LLLL LL / 2.98 ACRES \ / ♦♦ / \ / _ 7 1— �� LL LL 920 ♦ / - — — 26— / \ LLA\�LLLL ATE LLLL ♦ 9 AEI©N SWEAM + +`++++++QVERHEAD LL LLLL LLLL LOT 10 \ 920 All, \ - s0 �9 / + * UTILITY +++++ \\ ++ -/ 20 ACRES 9 +** + 1 a.. \ \ OLL HOU ES OUTSIDE DA'A'SHALL HAVE SPLAS >- ��,,( *� *+ *+* " ,� 4 / BLOCKS AT THE OUTLETS OF THEIR 90o \ _+ + + +* 0 °" LL�. " VDH DOWNSPOUTS TO PREVENT EROSION, 896 I \ +♦ /' j ++++ �� LLLL MONUMENT SEDIMENTATION OF FLOODING DOW �, GRADIENT PROPERTIES. SEE SHEET i2FOR \ / 894 \ \ �'�, _ / /♦,* *+ T 14 � .LL FOUND PLASH BLOCK DETAIL 9 ♦ ♦ 3.95 LL �` LLLL\• 9, \ ` CRITICAL +� / ♦♦ / 9> — SLOPES \/ s ♦♦ T.M.69-51H a 930°' 9\\\ \\� h ♦ LL LL GATES, JAMES P OR / .' +' '+ . \ \\ °O� \ / I lAEL on i' ♦♦ � KERRY D +'�+'+ \ �\ 46'OF OLF w/A ELEV: i' * /y++ '* \ `\\\ ,rp1/' / 583'OFCONC. FLOW W/AELEV.8' 0 LL 2.148ACRES + +*�';'++++�':'* +++'; Jam,+ ++++ j j \\ RITI IL \\ \\\/ L \T ��\6oJq'\ANNEL FLOW IN PIPES (-al ft/s ♦♦. °p LL LLLL •� / �yt + + + +.+ \ \ 9 9f SLOPS h +++. +.+.''y++ .+ %�•.+ . %�". .' * +\++ VDH MONUMENT FOUND VDH MONUMENT FOUND 1 T.M.69-6M c= / `*,*,*,*,*,* 01 REVISED LOT 7 2 0 �� 9 + +�+*+* * \X + \ / \ E.C.ACKERMAN TRUST �� / k° + � {+ �90 oLL LL + + + � + + D.B.4733-23 /_ :'+* �' .i \ + �. + M*..•a.... ., +. \ � A ++ ++ +'+ t + D.B.4733-20 & 21 PLAT O O �� - ;;'+ '+'+'+ '+'.'+ + .* + - 00 +0 ``,, "° + D.B.4456 444 O 2 0 / ° i.' _' + ++ L + + + D.B.3530 234 PLAT 00���00 / T_ r + w +� + +'+'+'+' ''* �' + 00 LL + LL + +++ ++ LL 0 T. M.69-6G LOT 1 FRANK DONLEY & CARLA DONLEY D. B.3380-82, 85 & 86 PLAT i _. * -- <• ++a+'k++LLo+o+++ + + j + + y(1 \++: +: ♦o ® 15.7_ac O LL° oLLLL LL LL �LL LL' LLLL LL, LLLL' OOH 2OC++ T-67 o�+. �� +++ 2. ES —__-- 894iooFOOT WPO� p 9STREAM BUFFER I, s�Oj TG cis ++ + LL * \ ♦ / °� LL *.*+*. +++ � I/ � + S, ` 89° + i _ � � !I/ � ��\ � � 2 16 LOY \v �+++++++++�++1 i 5 ACES l �� � o \ � 2 + I ._8g8LLv- / +,,/ \00-6 LLLLPOSE /!►CRITICAL;rI++�.�e$LOPE$ LLt � LOT 2 + ��°94 .:1►:F: ''2.9ACRE_ J � 940r +*/,*+++}� —'� 1 �V+\I�/ I 8° 1 �.r O LL���LLLL LLLL �.+ / / / 920 \ \ �� + I _ LLLL LL IS /j / // _ ey \ +`� �/, o LLLL LL _ i // �:�>:': �I 8�v� OVERHEAD ®QLf / LOT 3A — _ 932 — — — — — ���� — ►' \ I \'+` .`.`.`.`.`+ +\ I UTILITY oLL LL --- --- — �, \ �j++``. + + + + ..`+ LOT 17 LINES Or 2.07 ACRES— —_SU — — - - - 930" / /�/ /V ,� 4 \\ V `.`� 6 19 ACRES a _ _ / /( + / PRflP�YPRIY /� �� / / + =s + \\\f� +*++ V ss + +++ + + + + —9 / RF \ +' +ac+°+ +a +++++ O� 20 \I '.11 \ ' +' _ ' + +++`+\+ HOUS SAT THE OUTLETS . "`�• � OUTSIDE DA'A' SHALL HAV SPLASH \ —9f / �10e J��+ \ / / \ \ BLOC THEIR / ++`—' +3. 7 C Eei \ \1\ \ \ \ _ l ! ` \+ + +++ +�++i DOWNSPOUTSSEDIMENTATION FFLOOPREVENT FLOODING ON, 'goo / JJI ` +SEDIMENTATION OF ES. SEE SHEET DOWN R + `+ + ++ $Rp•SHN\OK DETAEL. SEE SHEET ii FOR (CRITICAL + + + T.M.69-19 � —� �` /�////p0 �/ I sroPEs �\`+� + i REVISED LOT 3 - / �/ ` \ f \ - / ,a I �' ' I I I ^ \ �♦ VDH ST04K56ACRESCREEK LLC � = �/ / /�/ 1 �/ / /I/1II \ / "" \ \ \ 1 8�6 07 .. ; �� LE MONUMENTFOUND 9 — — _ _ - /,,, \\ _ , / I \ \ '00 LOT+18+� > D.6.5504, PG.614 — _ / / \ \� \\ �` 2:0' + R'ES LOT 3B `� — —_ / ~� \� / /�Y / 2.49ACRE5 I _—J�/// j� ��\\ 8 ` 9°�j // ;� 9 LOT 9' \ F ti 3. 3 ACRES / \ �/ / IS % / ` —�— \ / // ' ) I r + b / If~+\\� \ \�y\ LE cRIncAL' + SLOPES CRITICAL SLOPES l / �/ -� \ !\ �gBO �, \\\ \ t - \ LIMIIS_OFANALY�O�D / � \ ` // / _ :+r� y v v -IF,+ +.++ + T M 69 SO j e3° J 1 VDH FREEMAN, ARTHUR H OR / + + MONUMENT JOANN F IS-- % FOUND _ i 47.729ACRES VDH VDH CRI ZEE RO(J 15 IS caloPes — —_�/ — MONUMENT JUST, OSEPH SCOTT & MFOUND ENT ST RS FOUND CASEY R JUST SHOPOAD _ /MONDUMENT GRAPHIC SCALE 21ACRES HWY plBe13 IDTH R/W---------- -- FOUND 80 o 40 80 160 P-8.3-209 VDH THRU 211) MONUMENT VDH ( IN FEET ) FOUND MONUMENT VDH FOUND MONUMENT 1 inch = 80 ft. FniiNn G1 SCOTT R. LINSZ Lic. No. 035791 � p 1/4/23 ,$i z U 0 0 0 U U U J J J J Q Z o x w a a a a m w w w O Q ED U O Q Q Q w z O O O Lu z F- F F z O z z z O O O O \ > LU Co W C cc) Co m J V) (A V) ce F- Z a' F- Z N M "t 1 N N N M Q N N O O O O O QV y L,e � d7 c� M M N T. M.69-51 GRAVES HOME LLC z 26.988 ACRES uoQ Ila- N la- z W � ( 2: LU LLJ > (D J i Q C0 0 . LU L9 H L O > Q z�C� WU Y V) , V H W LU Ul CO M WW G � H U ZLULU z o W i O > W LLI J � o Jli (n U ) Q O 0 a O CD C] N 320 U o w a JOB NO. 222207 SCALE 1 "= 80' SHEET NO. 10 I DETENTION BASIN DETAIL, SCALE 1"=20' -'PROPOSED CLASS Al, i RIPRAP OUTLET PROTECTION WITH GEOTEXTILE FABRIC TO BE KEYED INTO EX. GROUND 9" MIN. AT ENDS & ALONG PERIMETER. FABRIC TO OVERLAP A MIN OF 9" (L=32'-EXTEND TO RISER, Wi=6 FT, W2=1S FT, D-18"). 40' W DE GRASS LIN4EERGENCY I SPILLWAY (CREST ELEV.=866.40') WITH SIDES SLOPED AT 4:1 `0 00 U I 8' WIDE TOPOF DAM ELEV I I / PROPOSED STIR. Ai, A 36" HDPE STANDPIPE TOPPED WITH A STEEL WEIR PLATE PROVIDING A 24" OPENING AND TRASHRACK TO SERVE AS A RISER STRUCTURE. RISER TO HAVE A RIM ELEV.=864 7.1r ' A 6" LOW -FLOW ORIFICE INVERT ELEV.=86o.00'. RISER TOP, & LOW -FLOW ORIFICE TO HAVE STATE APPROVED I I TRASHRACKS. SEE _ \THIS PLAN FOR TRASHRACK DETAILS, OR EQUIVALENT. �I 868 862 6cc / 862 6� -�- 866 \ - 8' 68 6? VARIABLE WIDTH SWM ACCESS AND -\1 MAINTENANCE EASEMENT_ or ROPOSED CLASS Al, EC-1 RIPRAP OUTLET ROTECTION WITH GEOTEXTILE FABRIC TO BE EYED INTO EX. GROUND 9" MIN. AT ENDS & ALONG PERIMETER. FABRIC TO OVERLAP A MIN. . OF 9" (1 Wi=6 FT, W2=18 FT, D-18') OUTLET PROTECTION SIZING TYPE LENGTH WIDTH DEPTH TO DENTENTION BASIN RISER VDOT CLASS 1A 32' 6'-15' 1.5' OUTFALL OF DETENTION BASIN VDOT CLASS iA 16' 6'-18' 1.5' ILM• 875 100-YR PEAK WSE 866.98 PROP SEDSTR.A2,A36"HDP 10-YR PEAK WSE- 866.38 STAN PIPE TOPPED WITH A ST EL 2-YR PEAK WSE- 4.63 WEIR LATE PROVIDING A 24" 1-YR PEAK WSE� 63.82 OPEN G AND TRASHRACK TO SERVE ASA ISER STRUCTURE. RISER O HAVE RIMELEV. 864.i7',A6" 87o LOW- ELEV. LOW ORIFICE INVERT 860. RISER TOP, 870 LOW. LOWORIFICE TOP,& O ATE KAZKS. SEE PLAN OR TRASHRACK DETAIL , OR EQUI LENT. 8'WIDE TOP OF DAM ELEVATION=868' WITHA o'WIDE RIPRAP LINED EMERGENCY SPILLWAY (CREST ELEV. 866.40') 865 865 PROPOSED GRADE EXISTING INV: 859.00 GRADE 860 PIPE Al TO 74.94 LF 2 8LO )i) OF 24 CL. 0O0 TOPREV NTFLOATATION THE RISE R BAPROPOSED BASIN'S I LOOR SHALL BE SLOPED 0 DRAIN TOWARE SRISER (0.5% MIN.)WI SLOPES HPOSITIVE HROUGHOUT V TES-i TO OUTLET PRO ECTION 855 855 TO PREVE qTFLOATATION THE RISES BASE SHALL BE FIRMLY EP IBEDDED 6" INTO AN 28"TH CK REINFORCED CONCRET FOUNDATION PROFILE SCALES THAT IS 5' 5', AND BURIED i'=S'(VERTICAL) BELOWG OUND. i'=5o'(HORIZONTAL) 85o 85o O O^ O C 800 m 0000 00UD 00 00 0+00 0+50 1+00 1+50 DETENTION BASIN SECTION 8' WIDE TOP OF DAM ELEVATION=868' PROPOSED GRADE 865 1�4a, 865 PROPOS D40'WIDEVDOTCL.AI IPRAPLINED EMERGI NCY SPILLWAY w14:2& ILTERFABRIC UNDI RLAVMENT(STONE DE H=28")SIDES SPILLWAY CREST ELEV. 866.40 86o 81 ~O ^ m 0 tD 0 6 1D W cc)W 00 0+00 0+50 GRASS LINED DRY RETENTION BASIN CONSTRUCTION NOTES: FACILITY PLANTING SPECIFICATIONS: 1. THE DRY BASIN SHALL HAVE TURF GROUND COVER, SUCH AS GRASS OR SOME OTHER FORM OF A VEGETATIVE GROUNDCOVER. LANDSCAPING BEYOND THIS IS OPTIONAL AND IS NOT REQUIRED. 2. THE PROPOSED INTERIOR SIDE SLOPES OF THE DRY BASIN SHALL BE 3:1 WITH THE TOP OF THE EMBANKMENT SERVING AS A SAFETY BENCH. THE PROPOSED FLOOR SLOPES SHALL BE GRADED TO PROVIDE POSITIVE DRAINAGE AT ALL TIMES TO THE RISER STRUCTURE. 3. WOODY VEGETATION SHALL NOT BE PLANTED OR ALLOWED TO GROW WITHIN 15 FEET OF THE TOE OF THE EMBANKMENT NOR WITHIN 2S FEET OF THE PRINCIPAL SPILLWAY STRUCTURE. CONTRACTOR REQUIREMENTS: 1. THE CONTRACTOR SHALL BE RESPONSIBLE FOR LAYOUT OF ALL WORK COVERED UNDER THESE PLANS. 2. THE CONTRACTOR SHALL VERIFY ALL DIMENSIONS IN THE FIELD AND NOTIFY THE DESIGNER OF ANY VARIANCE FROM THE PLAN. 3. THE CONTRACTOR IS RESPONSIBLE FOR VERIFYING THE LOCATION OF ANY ONSITE UTILITIES (CALL MISS UTILITY AT 1-800-552-7001 BEFORE ANY EXCAVATION). 4. REFER TO THE APPROVED FINAL SITE PLANS FOR ANY DETAILED SITE INFORMATION. \ S. ALL WORK SHALL BE COORDINATED WITH OTHER PARTIES. 6. THE CONTRACTOR IS RESPONSIBLE FOR REMOVAL AND DISPOSAL OF TRASH AND DEBRIS WITHIN THE LIMITS OF THE DRY BASIN ON A DAILY BASIS. 7. THE CONTRACTOR WILL NOT BE RESPONSIBLE FOR DAMAGE CAUSED BY VANDALISM, FIRE, OR OTHER ACTIVITIES BEYOND THE CONTRACTOR's CONTROL. FACILITY CONSTRUCTION 1. THE DRY BASIN MAY SERVE AS A SEDIMENT TRAPPING DEVICE DURING PROJECT CONSTRUCTION. IF THIS IS DONE THE VOLUME SHALL BE BASED ON THE MORE STRINGENT SIZING RULE (EROSION AND SEDIMENT CONTROL REQUIREMENTS VS. STORMWATER TREATMENT REQUIREMENTS). INSTALLATION OF THE PERMANENT RISER AND BARREL SHALL BE INITIATED DURING THE CONSTRUCTION PHASE, AND DESIGN ELEVATIONS SHALL BE SET WITH FINAL CLEANOUT OF THE SEDIMENT BASIN AND CONVERSION TO THE POST -CONSTRUCTION DRY BASIN IN MIND. APPROPRIATE PROCEDURES SHALL BE IMPLEMENTED TO PREVENT DISCHARGE OF TURBULENT WATERS WHEN THE BASIN IS BEING CONVERTED TO A DRY BASIN. 2. THE DRY BASIN SHALL ONLY BE CONSTRUCTED AFTER THE CONTRIBUTING DRAINAGE AREA TO THE FACILITY IS COMPLETELY STABILIZED. IF THE PROPOSED LOCATION OF THE DRY BASIN WILL BE USED AS A SEDIMENT TRAP OR BASIN DURING THE CONSTRUCTION PHASE, THEN THE FACILITY WILL BE DEWATERED, DREDGED AND RE -GRADED TO DESIGN DIMENSIONS AFTER THE ORIGINAL SITE CONSTRUCTION IS COMPLETE. MODIFICATIONS SHALL BE MADE TO THE RISER ORIFICES AND BARRELS AS REQUIRED SO THAT THEY ARE CONSISTENT WITH THE FINAL CONSTRUCTION SPECIFICATIONS. 3. THE CONTRACTOR SHALL ASSEMBLE CONSTRUCTION MATERIALS ON -SITE, MAKING SURE THEY MEET DESIGN SPECIFICATIONS AND ARE PREPARED AT STAGING AREAS WHEN POSSIBLE. 4. THE CONTRACTOR SHALL CLEAR AND STRIP THE PROJECTAREAIF REQUIREDTOTHE DESIRED SUB -GRADE. S. INSTALL E&S CONTROLS PRIOR TO CONSTRUCTION OF THE DRY BASIN INCLUDING TEMPORARY DE -WATERING DEVICES AND STORMWATER DIVERSION PRACTICES. ALL AREAS SURROUNDING THE DRY BASIN THAT ARE GRADED OR DENUDED DURING CONSTRUCTION SHALL BE PLANTED WITH TURF GRASS, NATIVE PLANTINGS OR OTHER APPROVED METHODS OF SOIL STABILIZATION. 6. CONTRACTOR SHALL EXCAVATE THE CORE TRENCH AND INSTALL THE SPILLWAY PIPE DURING THE ESC PHASE. 7. CONTRACTOR SHALL ALSO INSTALLTHE RISER, OUTFLOW STRUCTURE AND/OR THE BARRELS) WITH PERMANENT COLLARS DURING THE ESC PHASE. CONTRACTOR SHALL ENSURE THE TOP INVERT OF THE OVERFLOW WEIR IS CONSTRUCTED LEVEL AT THE DESIGN ELEVATION. 8. THE CONTRACTOR SHALL CONSTRUCT THE EMBANKMENT AND ANY INTERNAL BERMS IN 8-TO 12-INCH LIFTS, COMPACTION SHALL BE COMPLETED IN LIFTS WITH APPROPRIATE EQUIPMENT. THE CONTRACTOR SHALL ALSO ADHERE TO THE CLAY LINER SPECIFICATIONS OUTLINED IN TABLE 14.4 BELOW: 10' PRIVATE ASPHALT ACCESS ROAD TO SWM1FACILI /TY WITH 1o' PRIVATE ACCESS EASEMENT HORIZONTAL GRAPHIC SCALE DETENTION BASIN SPILLWAY SECTION HORIZONTAL GRAPHIC SCALE n 25 50 100 ( IN FEET ) 1 inch = 50 ft. VERTICAL GRAPHIC SCALE 5 0 2.5 5 10 ( IN FEET ) 1 inch = 5 ft. 20 `RoV 11 SD ( IN FEET ) 1 inch = 20 ft. GENERAL SWM NOTES: i. STATE APPROVED TRASH RACKS SHALL BE INSTALLED ON ALL ORIFICE OPENINGS. SEE THIS SHEET, OR EQUIVALENT, FOR DETAILS. 2. CONCRETE FOUNDATIONS SHALL BE INSTALLED ON ALL RISER STRUCTURES MEETING MINIMUM VESCH 3.14 SPECIFICATIONS, INCLUSIVE OF STR. 6 SINCE IT IS LOCATED WITHIN THE DRY BASIN AND IS SUBJECT TO BUOYANCY. 3. CONTRACTOR SHALL HIRE A THIRD PARTY GEOTECHNICAL ENGINEER TO ENSURE THE EMBANKMENTS ARE STRUCTURALLY SOUND. ALL EXISTING AND PROPOSED FILL MATERIAL AND PROPOSED CONSTRUCTION SHALL BE APPROVED BY AN ONSITE GEOTECHNICAL ENGINEER PRESENT DURING THE CONSTRUCTION OF THE EMBANKMENTS AND FILL AREAS, AND PRESENT DURING THE CORE SAMPLING. 4. THE DOWNSTREAM EMBANKMENT SIDE SLOPES OF ALL PERMANENT FACILITIES, INCLUSIVE OF THE DRY BASIN, SHALL HAVE A MAXIMUM 3:1 SLOPE. 5. CONTRACTOR SHALL EXCAVATE SEDIMENT LADEN MATERIAL IN ANY ESC SEDIMENT TRAPPING DEVICES AT THE TIME OF THE FACILITIES' CONVERSIONS TO PERMANENT SWM FACILITIES, IF APPLICABLE. AT SUCH TIME THE CONTRACTOR SHALL REGRADE THE SEDIMENT TRAPPING DEVICES TO THE PROPOSED GRADES SHOWN ON THE SWM SHEETS. THE CONTRACTOR SHALL MINIMIZE SOIL COMPACTION DURING THE CONVERSIONS. General Construction notes for Stormwater Management Plans i. 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 riserjoints are to be watertight within stormwater management facilities. 3. For temporary sedimenttraps 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. ALLOEGREATER THAN 3:1 SHALL BE PLANTED WITH NON -EROSIVE LONG GRASSES OR OTHER TYPES OF NON -EROSIVE PLANTINGS. Table 14.4. Clay Linea Specifications Property Test Method Unit I SpeClIfiCati Permeability ASTM D-2434 CM/Sec 1 x to Plasticity Index of Clay ASTM D4231424 % Not less than 15 Liquid Land of Clay ASTM D-2216 % Not less than 30 Clay Particles Passing ASTM D422 % Not less than 30 ClayCompaction ASTM 62216 % 1 95% of standard Proctor density Source: Virginia Stonnmter Management Handbook (1999) 9. UPON COMPLETION OF THE EMBANKMENT GRADING, THE CONTRACTOR SHALL EXCAVATE/GRADE UNTIL THE APPROPRIATE ELEVATION AND DESIRED CONTOURS ARE ACHIEVED FOR THE BOTTOM AND SIDE SLOPES OF THE DRY BASIN. 10. CONTRACTOR SHALLTHEN CONSTRUCTTHE EMERGENCY SPILLWAY IN CUT OR STRUCTURALLY STABILIZED SOILS. 11. THE CONTRACTOR SHALLTHEN FINISH CONSTRUCTION OF ALL OUTLET STRUCTURES, INCLUDING DOWNSTREAM RIP -RAP APRON PROTECTION IF APPLICABLE. 12. THE CONTRACTOR SHALL NEXT STABILIZE EXPOSED SOILS BY HYDROSEEDING OR SEEDING OVER STRAW. FACILITY MAINTENANCE: MAINTENANCE OF THE DRY BASIN IS DRIVEN BY ANNUAL INSPECTIONS THAT EVALUATE THE CONDITION AND PERFORMANCE OF THE FACILITY. DURING THESE INSPECTIONSTHE FOLLOWING TASKS SHALL BE PERFORMED BYTHE CONTRACTOR IN THE FIRST YEAR FOLLOWING INSTALLATION, AND THE OWNER THEREAFTER: 1. MEASURE SEDIMENT ACCUMULATION LEVELS IN THE DRY BASIN. 2. MONITOR TH E GROWTH OF THE GROU NDCOVER. 3. INSPECT THE CONDITION OF STORMWATER INLETS TO THE DRY BASIN FOR MATERIAL DAMAGE, EROSION OR UNDERCUTTING. 4. INSPECT THE BANKS OF UPSTREAM AND DOWNSTREAM CHANNELS FOR EVIDENCE OF SLOUGHING, ANIMAL BURROWS, BOGGY AREAS, WOODY GROWTH, OR GULLY EROSION THAT MAY UNDERMINE EMBANKMENT INTEGRITY. 5. INSPECT THE DRY BASIN's OUTFALL CHANNEL FOR EROSION, UNDERCUTTING, RIP -RAP DISPLACEMENT, WOODY GROWTH, etc. 6. INSPECT CONDITION OF PRINCIPAL SPILLWAY AND RISER FOR EVIDENCE OF SPALLING, JOINT FAILURE, LEAKAGE, CORROSION OR OTHER FAILURES. 7. INSPECT CONDITION OF ALL TRASH RACKS, REVERSE SLOPED PIPES OR FLASH BOARD RISERS AS APPLICABLE FOR EVIDENCE OF CLOGGING, LEAKAGE, DEBRIS ACCUMULATION OR OTHER FAILURES. 8. INSPECT MAINTENANCE ACCESS TO ENSURE IT IS FREE OF WOODY VEGETATION, AND CHECK TO SEE WHETHER VALVES, MANHOLES AND LOCKS CAN BE OPENED AND OPERATED AS APPLICABLE. 9. INSPECT INTERNAL AND EXTERNAL SIDE SLOPES OF THE DRY BASIN FOR EVIDENCE OF SPARSE VEGETATIVE COVER, EROSION, OR SLUMPING. 10. OWNER OR CONTRACTOR SHALL MAKE NEEDED REPAIRS IMMEDIATELY. FACILITY INSPECTION: MULTIPLE INSPECTIONS ARE CRITICAL TO ENSURE THE DRY BASIN IS PROPERLY CONSTRUCTED. BECAUSE THE TIMING OF THE INSTALLATION IS DICTATED BY THE CONTRACTOR, THE CONTRACTOR SHALL BE RESPONSIBLE FOR CONTACTING THE ENGINEER AND INSPECTOR PRIOR TO INSTALLATION. MULTIPLE SITE VISITS AND INSPECTIONS ARE REQUIRED TO BE SCHEDULED BY THE CONTRACTOR WITH THE ENGINEER AND INSPECTOR DURING THE FOLLOWING STAGES OF THE DRY BASIN's CONSTRUCTION PROCESS: 1. PRE -CONSTRUCTION MEETING 2. INITIAL SITE PREPARATION (INCLUDING INSTALLATION OF PROJECT E&S CONTROLS) 3. EXCAVATION/GRADING (e.g., INTERIM/FINAL ELEVATIONS) 4. INSTALLATION OF THE EMBANKMENT, THE RISER/PRIMARY SPILLWAY, AND THE OUTLET STRUCTURES). 4. DRY BASIN INSTALLATION (e.g., INTERIM AND FINAL ELEVATIONS) S. PLANTI NG PHASE FOR TU RF GROUNDCOVER 6. FINAL INSPECTION (DEVELOP A PUNCH LIST FOR FACILITY ACCEPTANCE) Storm Rax TN ROUND SERIES TRASH RACK (OR EQUIVALENT) CONCRETE MANHOLE STANDARD 601NCH RACK SHOWN DIMENSIONS IN INCHES SIDE VIEW StorTnRaxw Round Series for Concrete Manhole Part Noo, Dk•A GIBS Oka[ Min ID MII W24 17 14Y. n 24 30 AS-36 11 14 40,j 36 43 R549 27 >s 34 .. Y 57 FS40 27% 111% 661t 60 70 Mastic Solutions, IncCUIRMER - PO • 4386. Wlrcta w VA sad 236 Alrei,ee ttl. AWwMsret• VA 22603 A77) 877-5727 phone PROEM 1S40) 722-2219 fax ht1R//www.pasausdu6m.mm :ryaaL rYIw11Gw. LafYYw,K aw++�e scrnon - rt[uov,4Lrroe,wcrs0 1Vk .. ISOMETRIC CONCRETE STRUCTURE DIMENSIONS INSIDE STRUCTURE DIMENSION OUTSIDE STRUCTURE DIMENSION AVAILABLE OPnON{ CROSS BRACING FOR OVERHANG HOPE AN71-VORTEX PLATE DALE DRUM BY APPDBe DETAIL mn, Pkiled -ouk ss LnN ed tl i.' fattener IsolrICt I.IC I V' nOPF. P.alc (opana•1) 7116) � Oby _ �oFutione Inc r cquul cn c.lcvauun o IStro DEBRIS CAGE eeum will, upaucel plate Knee el cuOr Orel Pleena wan ' /8' hulee and I/4 plate :u[ectured 63 CleeUu tl loos Inr Or cqunl PLASTIC n. Po asoon 80LDTIONS A ar, ., a �u INC. avY-avr-nax7 ea.pleaa-ww.s-am SECTION A-9: TYPICAL GRAPffiC-AL DETAILS Homogeneous fill F-- ----� 4' min I O,( off trench-4' below suitable Sol or rock L_-----material --J TYPICAL HOMOGENEOUS EMBANKMENT Transition ftll ock or gravel 'Pipe outkl Coaatr3r zl G :.,. .., Perforated collector ar o Foundation drain Bbnket drain FOUNDATION DRAIN BLANKET DRAIN man SVM, 4ara a ram sae wut Rock or grovel Rak t: drain �Trarwition Inter TrarwiTron filter CHIMNEY DRAIN TOE DRAIN Figure A -la. Homogeneon s Embankments sv/ Seepage Controls EMBANKMENT NOTES: AFTERAN INVESTIGATION OF THE SITE's SOILS, SITE VISITS, AN ANALYSIS OF THE SURVEYED TOPOGRAPHY AND AN EXAMINATION OF VA DEQ APPENDIX A: EARTHEN EMBANKMENT, THE APPLICANT HAS PROVIDED A COMPREHENSIVE EMBANKMENT DESIGN THAT DOES NOT NEED A GEOTECHNICAL STUDY AT THIS TIME. SUCH 15 THE CASE DUE TO THE PRECAUTIONARY EMBANKMENT DESIGNS PROPOSED. A SUMMARY OF THE EMBANKMENT DESIGN REQUIREMENTSARE LISTED BELOW, MANDATING THE CONTRACTOR MEETTHESE REQUIREMENTS ATA MINIMUM. THE EMBANKMENTS SHALL HAVE A COMPACTED CLAY CORE WITH A CUTOFF TRENCH & BE IN ACCORDANCE WITH THE DETAILS SHOWN IN THIS PLAN. BERMS AND SPILLWAYS SHALL BE STABILIZED WITH EC-3 MATTING & RIPRAP AND THE REMAINING DISTURBED SLOPES SHALL BE STABILIZED WITH EC-2 MATTING. ALL BERM FILL MATERIAL SHALL CONSIST OF ML, CL, SC OR GC SOILS & BE FREE OF WOOD, ROOTS, ROCKS OR ANY OTHER NON COMPACTING SOIL COMPACTED FILL SHALL BE PROCTOR MAXIMUM DRY DENSITY ASTM D698 AND HAVE A MINIMUM OF 95%OF MAXIMUM DRY DENSITY AND 2%OF OPTIMUM MOISTURE CONTENT. ALL FILL MATERIAL AND CONSTRUCrION SHALL BE APPROVED BY AN ONSITE GEOTECHNICAL ENGINEER PRESENT DURING THE CONSTRUCTION OF THE EMBANKMENTS AND FILL AREAS. u COUNTY OF ALBEMARLE • = Department of Community Development RLcm�r Construction Record Drawings (As -built) for VSMP The following is a list of information required on construction record drawings for stormwater facilities (reference Water Protection Ordinance 17-422). It is preferable that the construction record drawing be prepared by someone other than the designer. Please do not provide design drawings as construction record drawings. A. A signed and dated professional seal of the preparing engineer or surveyor. B. The name and address of the firm and individual preparing the drawings on the title sheet. C. The constructed location of all items associated with each facility, and the inspection records to verify proper dimensions, materials and installation. The items include, but are not limited to the following: 1. Inspection Records and photographs for pipe trenches and bedding, including underdrains. 2. Video Pipe Inspection for any pipes which are not accessible or viewable. 3. Updated Location with geo-coordinates of all facilities. 4. Verified Drainage Area maps for the drainage area treated and for drainage to the facilities. g P g g 5. Current physical and topographic survey for all earthen structures. Ponds should include a survey of the pond bottom. Surveys should verify pond volumes are per design. Corrections may be required for alterations from the design. 6. Plants, location and type. 7. Plans and profiles for all culverts, Pipes, Risers, Weirs and Drainage Structures - Display the installed type of drainage structures, culvert/pipe size, weirs, materials, inlets or end treatment(s), inlet and outlet protection, alignment and invert elevations compared to design. 8. Computations: For significant deviations from design, provide sealed computations verifying that the as -built condition is equivalent or better than design. 9. Ditch Lines - Display the constructed location of all ditch lines and channels, including typical sections and linings. 10. Easements - Show all platted easements with dead book references labeled. Facilities and drainage must be within platted easements. Provide copies of recorded documents. 11. Guardrail, fences or other safety provisions - Display the constructed location of all safety provisions; fences, guardrail, including the type, length and applied end treatments, compared to design. 12. Material layers - biofilter media, stone layers, sand layers, keyways and cores must be verified as to material types and depths. Include inspection reports, boring or test pit reports and materials certifications. Biofilter media must be an approved state mix. 13. Access roads - show location of access roads, surface treatment, drainage, etc, as applicable. 14. Compaction reports are required to verify fill compaction in dams. 15. Manufacturers certifications for proprietary Ei certifying proper installation and functioning. %l SCOTTtR. CDLLINSZ Lic. No. 035791 � p 1/4/23 Z OU O O O w U U U J J LUZ0 Q �aaa w a m w w LU O Q co Do Do U O Q Q Q Q O F- Z 0 Z O Z Z Z p Ln O O O Ln U71 (n In LU co LU cc) co co U) to U1 Ice_I z ci� v z IN IN IN IN Lu CD N N O rq 0 CD 0 0 L9 14 M N C] 0) N N > L9 W O Z< Q U WY LLI H Ul Zw 0, AN I- U w Lin > 1 z Uj O li li LU ( I --I w 0 rr''LL �� CO D z � LU LU LU22 Q t U z OL O ' ''V^) I i U ` r•1 L JOB NO. 222207 SCALE 1 "=80T SHEET NO. 11 I \ \ \ \ \ \ _\11- - OUTLET PROTECTION SIZING /l Il I III (I II I I III AVA VAVAAV AA - - - - - /� A TYPE LENGTH WIDTH DEPTH RIPRAP CHANNEL OUTFALL OF36"CULVERT VDOT CLASS II 30' UP TO 874' CONTOUR 42" / T.M.6 6L / T.M.69-6C - ---- / \ LO 6' ARTAYR;SIV�ACIK GIBSON, EVERETT JR L D:B.52 6-5,21 \\� \ / / D.BPLAN 1.07ACRES/ / \ 44157704,707 NOTE: ALL HOUSES SHALL HAVE SPLASH BLOCKS AT THE OUTLETS OF �\ -\- \�� THEIR DOWNSPOUTS TO PREVENT EROSION, SEDIMENTATION OR / / / / �/9 '` \\ \ - VA - \ \\ \ \\ , FLOODING OF DOWN GRADIENT PROPERTIES. PLEASE SEE SHEET i> FOR /- \\\\ A DETAIL OF THE SPLASH BLOCK, OR EQUIVALENT. / / / / / / / / // - x Y -REVISEDLOT� \ \ \ \ \ p \re -�� ���\ `\ \p� Sc�,ntT / / \ \ \ \ CRITICAL \ \ \ \ \ \\ \ l \ \ \ \ \ \ \ ,STOCIZTON CRtEK LLC \ \ \ \ SLOPES \ \ \ 2.63 ACRES\ /\\ R� D.B.550 PG 614 \\ \\\\ \ \\� : \ \ ` /k \\ ioo YEAR FEEMA FLOODPLAIN \ 0-1 n \ \ LOT \V --� - - -I\\ \\ \ 5.0\5,ACRE5 `:V�_\\V Project Sbckbn Creek Plan Sheet No. Designer LW Sheet 1 of 2 Culvert Rev. Data Dab 8/15/22 STATION: AH W Controls HYDROLOGICAL DATA: 100 yr. Flood plain elev. DesignAHWdeph elev. Structures elev. treq. TWelev. Culvert 91 (STR-12 - STR-11): DA=35.91 ac., CN=59, Tc=24.2 min., 2-year Q=11.50 - cfs, 10-year Q=44.09 cfs,100-year Q=115.56 cfs Shoulder = elev. 893.61 = CL elev. 893.83 DISCHARGES USED RISKASSESSMENT ADT Skew ° Cover Q 2 = 11.5 CFS DebursAvailable Lengh Q 10 = 44.09 CFS Overtopping Stage Q 100 = 115.56 CFS Flood Plain Management Inv. El. 873.92 So= 1.88% Inv. EL 869.31 Q _= CFS Cribria and Sigmicanl Impact Orig. Gr. Elev. L= 245.75 ON. Gr. Elev. Q = CFS HEADWATER COMPUTATIONS CONTFVELOCITY UTLET End INLET CONT. OUTLET CONTROL CULVERT TYPE & SIZE Q QB HW. Treat COMMENTS HWID HW Ke do (dcFD)/2 ho H LSo HW ELEV.SmoothProposed 36" RCPCulvert(2yr) 11.5 11.5 0.49 1.5 0.5 1.1 2.04 0.71 0.5 4.6 -3.40 1.58.85 EW-1 VDOTSTD.EW-1ClassIIOutletPro4cton Proposed36"RCPCulvert(10yr) 441 44.1 1.18 3.5 0.5 2.2 2.58 3.64 05 46 -047 3512.82 Proposed 36"RCPCulvert(100yr) 115.6 115.6 4.28 12.9 0.5 3.0 3.00 16.06 0.5 4.6 11.95 12.9 16.35 Design Flood Exceed. Prob. Elev. Overtop Flood Exceed Prob. Elev. SUMMARY & RECOMMENDATIONS : Base Flood I% Exceed.Prob. Elev. k7 SCOTT7R. C10 INS_Z Lic. No. 035791 p 1/4/23 ,$i z U 0 0 0 w U U U J J III Q Q Z0 E¢ Q a m w w w O In M U 0 Q Q Q 0 F- 0 Z 0 LOT 12 \ \ \ - 1- %r / X�l . \WATERSHED SUMMARY FOR PROPOSED z z z LOT v v ----- --9ze - v o cn 0 0 0 l _ _ � 36" RCP CULVERT \~\ j � � � 2.41ACRES 920- -\ {/ / 920\- /� �' / 9zz K \ \\ /�. Ill m Co co En \ / \ LU Co m m 2.98 ACRES \ �\ - y� - / - r = \ \ Area, 2-Year Flow, 10-year Flow, 100-Year Flow, W rn 920 C. .DOWNSPOUT AND SPLASH -\ __ / / I I »»����y� yx\� �� CN J 2 \ / BLOCK SHALL DIRECT ROOF -- ' �'� J/ I /dKP V ,[VIA aC. cfs cfs cfs .Q. RUNOFFTOWARDS i 7 II ���,,II�. N rv \ - I I 9;' DAtoCulvertCrossin Stockton z STOCKTONCREEKLANE \ __ - - - - / / !/ I / I. \ \ Creek Lane 59 35.91 11.$0 44.09 115.56 LOT 10 -9>0 v y �- \ 9=0V �JTIL A a FV F\ V V \\ V I vv m � �� \ _ A \ 2.20 ACRES v jl�\// \11III l I 1 I I 1 I \ \.:.goon vD`........\\\\\\\I A AVAV( 1 v - A o � � MONUMEN � \\ \ \ IVv v LOT 14 s� A v V V --� �� ✓/ /-- v ./ \ \ \ v VA \V A I I I l l l I I V\ 1 �/ 8sz 7 _ AA.\ v v v v / / / 3.95 ACRES. POLE F-0LN� \\ \VA\ v v \ v A V AVA I I III �// 1 / /// �I / /I�////�///�///��/ ///// /�/�// v-v v\ v\ vV v\\ �\\ A V\ \ \ \ �TV \ A v%/%//\ llq� / 1/!�/ ��%/d4,/�/% v/�9/' A �� 's --_/ ////IIs / o -/_--�sy-�I - //vv��v✓�7�� i/. j / //A v/ �A \,V _:' v V V CVPRzs I �9A / LC OS�LxSOU/T AND SPLASHP_ \ VvAV v\ \v vA vv \ oN L930 OFAAE�b�lp v�H\/ RUNOFF TOWARDS SOUTH KERR �SIDE OF HOUSE Q N N oN O /\1418A T11 o 0 0 RITICAL CRES/I // SLOPES 2.73 ArN vel k \ r Q 3ED LOT 7 \ Fsso i \ \ 1 \ o \ \ \ / MAN TRUST - v _ v �o A A _ -,--m v / /� l N 1� y vv / No, vry Av V v 4733-23 O J I �k720&21 LA 0��/ 4 <' B - - /� _/� v _ j / �� DOWNSPOUT AND SPLASH 1� BLOCK SHALL DIRECT ROOF . - _ - �. _ . - - / ' . / / / : i I \O. F ' � V 1 V v N_ / D.B.4456 / AF \� v v v fi III �6.3530 234 P T I o ,' 6 - � � - / / / Cv----- v v � � - I / F � \ / OWARDS 'O F F - - AV� y v v v / / N CREEK LANE , , _ . v � STOCOKTO - --- / /,/ / / / / ///// \ \ 1 � i ✓ �\ � \ / may.- \- \'� / e ( / iA� ` 50 \ \ (� \ C� cKt \ / d r e rn CN \ \ /\ /C. "IVI \\ ° \ �. / \ \ \ 1, , \ \ \/ / \ ioo FOOT WPO o a \ `r<c T.M.69-5 y / \ v- � . A spEF v $ \ . A_�v`.�- v \ STREAM BUFFER o r r \wV v S� v A co v C- LOT 15 / v��'' v \G i3 �" ° V A ,1AA.\\ -. 1� 10 / ss V AVAl / \. 2.40 ACRES F�Fov 26. 88 AC ES( LOT 23�� / v � v � V o � • � v � C � __-_ v m 'V A \ aso 894 _ .. / x A / A F - /� ) 2.02 ACRES \\ 6 \r O o\ \ \ ( tee" / a \ �\ \ o \. \ r / 1 \ \ v 6 � m_ v 5 o F \ \ l� $ /I \ �Czz \\ / \r \\ s l \\ \ \ \ \_ '' O �'Lq�w \ \ 1 Cn O v I /-' / o X I r v v v \ I 1 N LOT 16 I I{ \/ O -7 / \FB�'�A2.25 ACRES T:M<�/C�T O ORUNOFFTOWARDS O 6 20PUBLIC DRAINAGE ESMTSTOON CREEK LANE G% %FANKD TNLEY& V\ e o CRITICAL vI- \ C JCARLA ONLEY/ I stoPEs OD.630-82T 1,85 & /PL�J 91 LOT 22 Cf) 2.49 ACRES o ISv--- -- PROPP� OSED So'VDOT RIGHT -OF pk940- / L9\/WJ_iH LU V 0 QOLf OVERHEAD PROPOSED So'VDOT RIG _93z FWY UTILITY N '2.0-T3A----- ---- LINESLOT 17 7-ACRES-- �$I�- -!/ D'WN�TADS LASH 3A 6.19 ACRES \ /-/ UQI, -PROPERTY,- BLOCKSADIRECTROO -I- _ - ,RUNOFF TOWARDS _ A 8zo l - - / STOCKTON CREEK LANE \ �20' PRIVATE DRAINAGE / \ \ / / / / ' / -- -- L - - - --LOT '� / t1 -� F-9�----'r -- , /'/ A ESMT 1 v��d % �j //� / W 1-�- 92a_ € 1 - J 900, \ \ \ / - - 36" RCP CULVERT l I 8' % J \ \ \ ,��/ / / // / J (� VDH ( / I I / v (\ / - -I �y ' - r / / / /� y Ul � �� SEE DESIGN THIS SHEET CRITICAL / A vA V A �A / \ - - r / v y v-� SLOPES MONUMENT 1 I � I / v �' � -_ ,�`- / -l- -- / / ��M-.69-19 \� ./ /e \ \ \� \ // / r W FOUND \ 1 \ \ HV \ - / / // / oo \ \ TO / ��7��� , // /j � 7iv �� - � � e�° ,r � � V t VA W \ \\VA A A � / �fl 1 / � ACRESEK LZG \ ��� //� '/ T`. �� / DOWNSPOUTANDSPLASri m /' �- �P LE s\ V�\VA / �I�F N ENT / -r \ ISED T3� / _ _ I ` (y :' -BLOCK SHALL DIRECT ROOF \ / R\ / l /iJ5�I4 PGT614. i 1- - \ -1"-/ j, /j/ T /\ \ ` _. \� / RUNOFF TOWARDS SOUTH - LOT / \ \ \ \ \ \\ // /� I \\ \\ 1 I U) - \ \\ -:= - _ / / J / `\ - AND/OR EAST SIDES OF HOUSE .�I,. I20' PLJBLIC DRAINAGE ES / \ 2.05 ACRES / \\ \ f /� \ / � - T - - TOWARDS DETENTION BASIN / � , \ \ 1 \ \ \ \ \ \ \ \ / 1 / \ / j / 49A�iRS / - _ ; / / / \ \ \ - , a9 / I i / / ��\� w -\ / \ ' - r 1 I X � \ \ Ill/ � I \ / LOT 19DOWNSPOUT AND ROOF BLOCK SHALL DIRECT ROOF � 1 /\--TI \\RUNOFF TOWARDS SOUTHVDH 3.43 ACRES \ , \ MONUMENT =nSIDE OF HOUSE FOUND E I - / // \ - - / / / asa- \ \\ \\ \ /� / L / / / �� I� I \ \\ \\\ p \ -ZO' PUBL C DRAINAGE SMT," •i s6o4 abi /�j/ N - - - � \ O \ FF OU N 9-5Q FREEMA TH 864 e6a- MENT N- - 864 ES vAv\V \ \ V \\ V \I I I U VDH_ - TATET_M.69 19A7 MDNUMEN� --- - -� ScJUs lOSEPFSao fT _f0L7N2 RITICAt_ Ldu - - - \ \ .OlI / CY3EST 20 222207 ACFOUD JLJL DH / �/ // // /✓/// \-� - - - ---ice_ �\ \\\ \\\\\ \\ \ \ \ \\ \\ F� \ `\\\\\ -� VDH VDH P II \- - IONUM_NT \ FQUIVD MONUMENTPnimin ( IN FEET ) 1 inch = 80 ft. V SCALE 1 "= 80' 12 STORM SEWER io-YEAR CAPACITY CALCULATIONS TH OFF Design Storm Year = 10 DRIVEWAY CULVERT io-YEAR CAPACITY CALCULATIONS .l� � Design Storm Year 10 SCOTT R. LINSZ U Lic. No. 035791 � off MMETCOMM° 1/4/23 o��ss10NAL 0 S�OS z. w w z CD z w z O U 0 y 0 C w 3 Z Z Z OU O U O U O h y v/ J J U J x x z Q N ZO E W Q F Q Q x t O CLcoW Q W 00 W 3 U O Q Q Q 3 w 0 F- 0 F- 0 F- 0Z Z Z Z o� y OO Ln O O O o > .. W > W E COo (n m (n m m U F- Z a' F Z N M O � `o HYDRAULIC GRADE LINE (LD 347) CALCULATIONS Design Year: 10 Project: Stockton Creek Subdivision Job #: 222207 Prepared by: LMW PE °' RJNCTIONLOSS J C O O N N rN M W N C N N CD N � N Q N N N O E O N M rn ci O O O o C J N j� m O 0 (yi 3 y N a M a � z C 1 U N Q o J Cn N N Q o 0 (n w r N J o J_ I � z O zc w o L9 ~ O L r Q< L 3 O \ J c /,--I < U z U° = m Q a U U ' (n w Roadside Ditch Lining Calculations Job Number: 222207 Designed By: LMW Y LU o Stockton Creek Lane Maxs�O% EC4MaxV�.Ofps VDOTCI.AI,n=0.072 w Q o MaxV=3.ofps EC-3TypeA,Max V=7.0fps VDOT CI. I, n�.086 ~ L I z E LU H� a VDOT CI.II, n=0.095 � �if// o I L� 0 z 0 w w w z w z z w z n/ O w N z /� V i �/ J i o � U J o 0 w .� n/ J ° a > fQ V o O O N Roadside Ditch Lining Calculations Job Number: 222207 Designed By: LMW Stockton Creek Court Maxs�O% EC-2,MaxV�.0fps VDOTCLAI,n=0.072 0 y MaxV�Afps EC-3Ty1e A,Max V=7.0fps VDOTCI.I,n=0L86 E VDOTCI.II, n=0D95 U U W O w w L o U ° JOB NO. 222207 ° a SCALE o N/A 0 a SHEET NO. 13 ®®------_- ®-®®------_- GRATE INLET COMPUTATIONS STRUCTURE DRAINAGE Sta From Sta To T= (mm) C Value Area (ac_) CA cc I= (in/hr) Q= (cfs) Slope (ft/ft) Earth(n=0.03) Jute(Sod)(n�.05) Riprap h� (in/hr) Q�� (cfs) Depth'" (ft) Min -Design Width (ft) VeL Depth VeL Depth VeL Depth (Depth) (Type) Note: Ditch terminates at STR-18 12+09 10+00 6.0 0.50 0.24 0.12 5.4 0.65 0.0450 2.58jps Q29 ft 6.50 0.78 0.31 ft 12" Faith 6.00 ft Note: Ditch terminates at STR 17 12+09 10+00 6.0 0.40 0.39 0.16 5.4 0.84 0.0450 2.91 fps 0.3111 6.50 1.01 0.34 ft 12" Earth 6.00 ft Note: Ditch continues to Stockton Creek Court 12+09 18+79 12.0 1.97 0.45 0.89 4.3 3.81 0.0750 2.2 fps 0.69 ft 5.30 4.70 0.75 ft VDOT CL A 1 Riprap 6.00 ft Note: Ditch terminates at STR 10 12+09 19+83 8.0 0.60 0.48 0.29 4.9 1.41 0.0750 2.0 fps 0.48 ft 6.00 1.73 0.53 ft VDOT CL A 1 Riprap 6.00 ft 24+OS 19+83 12.0 0.30 3.44 1.32 4.3 5.68 0.0574 2.6fps 0.85 ft 5.30 7.00 0.91 ft VDOT CL A 1 Riprap 6.00 ft Note: Ditch continues to Stockton Creek Court 24+05 19+83 8.0 0.55 0.53 0.29 4.9 1.43 0.0574 1.8 fps 0.51 Sta From Sta To T= (min) C Value Area (ac.) CA cc I= (in/hr) Q= (cfs) Slope (ft/ft) Earth (n=0.03) Jute(Sod) (n�.05) Ri ra ho (in/hr) Quo (cfs) Depth+o (ft) MinDesi n Width (ft) Vel. Depth VeL Depth VeL Depth (Depth) (Type) Note: Ditch terminates at STR 7 10+00 12+30 9.0 0.35 5.57 1.95 4.7 9.16 0.0700 2.8 fps 1.04 ft 5.80 11.31 1.12 ft VDOT CL I Riprap 8.00 ft Note: Ditch terminates at STR 6 10+00 12+30 10.0 0.50 3.87 1.94 4.6 8.90 0.0700 2.8 fps 1.03 ft 5.60 10.84 1.11 ft VDOT CL I Ripmp 8.00 ft