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HomeMy WebLinkAboutWPO202200021 Plan - VSMP 2023-01-06STOCKTON CREEK SUBDIVISION VSMP PLAN AMENDMENT #1 GENERAL NOTES OWNER: STOCKTON CREEK LLC 455 SECOND STREET, 57H FLOOR CHARLOTTESOLLE, VA 22902 DEVELOPER. RIVERBEND DEVELOPMENT INC. 455 SECOND STREET SE SUITE 200 CHARLOTTESWLLE, VA 22902 ATTN: ALAN TAYLOR ENGINEER: COLLINS ENGINEERING 200 GARRETT ST, SUITE K CHARLOTTESWLLE, 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, PG614) - 8.92 ACRES Z 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, & CRITICAL SLOPES OVERLAY DISTRICT DEVELOPMENT RIGHTS: TMP 69-19C, TMP 69-19E, TMP 69-19F, & TMP 69-50B ALL HAVE (2) DEVELOPMENT RIGHTS AND MAY BE FURTHER SUBDIVIDED. TMP 69-19H AND IMP 69-19J BOTH HAVE (4) DEVELOPMENT RIGHTS AND MAY BE FURTHER SUBDIVIDED. TMP 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 EXISTING 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 EXISTING 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 PROVDED BY ROGER RAY & ASSOCIATES, JANUARY 2022. HE BOUNDARY LINE INFORMATION IS PROVDED 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) EXISTING FARM HOUSE WITH BARNS. LIGHTING: NO LIGHTING 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 PR07ECTION 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 SEC77ON 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 BUFFERSAFLOODPLAIN. 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 OFFSITE DISTURBANCE IS PROPOSED WITH THIS PLAN NOTES 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. WP020220021 WHITEHALL DISTRICT ALBEMARLE COUNTY, VIRGINIA / i LOT \ \ 2.70ACRES \ / SH��I. LAYOUT --------------- _ ---- ----------- \ we LOT 13 o • b `. • '_�.:.�\ / \ \ 4.41 ACRES , a� / LOT 12 / 2.40 ACRES LOT 10 \ � \ � \) / '" `..` 4 ," . �. •. . 2.22 ACRES LOT14 3.90 ACRES '."'V LOTH \ ��. V A o • ••\ 3 / / 2.74 ACRES / \ LOT 15 / / °a ` • A m 239 ACRES / c'� _ ,�• 4, _ v - - - 1.90ACREs v �� v v / v v v V / / O o LOT 16 6 \ / o 2.25 ACRES \ / o`, ` 2.49 ACRES LOT 17 oa �♦ ��S 2.07ACRE5 1 // I I \ V 6.19 ACRES / I I ♦� O / LOT21 / LOT 20 3.10 ACRES / \ - \ \ 3.46 ACRES \\ A z.o ACRES 2.49 ACRESLOT 19 LOT 3B\� I I \ \\ 3.44ACRES 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 (94.99) TOTAL ACRES OF OPEN SPACE: 0.00 AC (30.39) GENERAL BUILDING DEPARTMENT NOTES. TOTAL ACRES OF ROW 2.51 AC (5.19) 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 SERONG 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. 211) 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) SUBJECT SITE 254�i Brookville ManoapsRe Manor VICINITY MAP SCALE: 1" = 2000' ROADS LEGEND O EXIS77NG CULVERT O CULVERT 0 DROP INLET & STRUCTURE NO. CURB a CURB & GUTTER PROPOSED PAVEMENT EC-3A DITCH DEPTH OF EC-3A DITCH EC-2 DITCH DEPTH OF EC-2 DITCH Blue ?50 Greenway „•�,,, EARTH DITCH DRIVEWAY CULVERT BENCH MARK CLEARING LIMITS T zoa EXIS77NG CONTOUR 20o PROPOSED CONTOUR 24055 VDOT STANDARD STOP SIGN •� PROPOSED SPOT ELEVA77ON VSMP PLAN SHEET LIST Sheet Number Sheet Title 1 COVER SHEET 2 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 SCOTT LR. C-MLINS-Z Lic. No. 035791,E 1/4/23 .A" z 0 U / /► w V/ J K Z 0 ED O a U Q �••� Ln o w o z z 0 F�1 0 ��„ / > Ww ao r 2 M W N a o a 0 _U Z`T) M M O N M W N O O N W N z LLI J J U) 0 W O J Q U W� w in C. J~ LU J01-1 01-0 0 O O N V w T_I LU 0 LU Q a I O H1 Hi 0 m V) LJ LU U z 0 U 0 U) 222207 13 TOTAL SHEETS 1 VDH MONUMENT FOUND N 03'3 224. VDH MONUMENT FOUND 7 0 T.M.69-6L LOT 6 STUART TAYLOR SMACK D. B.5246-521 D.B.3415-704,707 PLAT r i V ' i N05'10'43"W 155.67' N05'10'43"W 7.09' % N05'10'43"W 23.27' NO2'36'21"W 29.23' N73'26'07"E \ \ 2.53' \ T.M.69-6C S70'00'00"E \ 25OGIBSON, EVERETT E JR C9 CIO FIELDS \ 1.07 ACRES Gg-------- -- - - ------------------- -- ---- ---------------------------- _ _ -- - IS ----_-_ _ --- - - 1 06, / v- y- •1k. LL v. h� u. �� S70'OO'OO" E LL e'er { 112.98' e LL\ r IS LL �••� - T.M.69-19G \� \ ' �3pARFST T.M.69-516 TOCKTON CREEK LLC S8 CRITICAN REVISED LOT 6e e ��\ e �''�.\ `\� ��p T� AT�Sp MCCLAN FIELDS DENISE 2.63 ACRES 2RRg. Y LL �'\..: RNpi� F 2.80 ACRES D.B.5504, PG.614 SEPTIC isLL e LL DRAINFIELD AREA [ LL %7 ioo-y FLOOD-RLAIN_ � Y �o�ryh - ------------- - - 920 — _ -szlL � / 25.00' / T.M 69-19H _ _ _ _ - - - - ° LL \ REVISED LOT 7 - J i I \ 11.03+/-ACRES V8-56'25' W -- y �\ m - - - .� �� OVERHEAD - -- \ 166.07' \ �' V UTILITY G STRUCTURES LINE 0 - — / — BE REMQGE (TYP.) 924 N04'54'11"W j i S '00 ° 8� / - - 71.02' N04'54'11" 5.3-1 NO3'44'08"W 154.34' T. M.69-6M REVISED LOT 7 E.C.ACKERMAN TRUST D.B.4733-23 D.B.4733-20 & 21 PLAT D.6.4456-444 �� a off; D.B.3530 234 PLAT Q) r-)ooi' cr) , 1�c" N05'50'52"W % --- —115.24' ---7 N05'50'52"W 104.98' T.M.69-6G N05'50'52"W LOT 1 FRANK DONLEY & 7.49 CARLA DONLEY D.B.3380-82, 85 & 86 PLAT N04'26'19"W 245.20' S85'19' N10 i8'17'2 24.79' IF O CRITICAL SLOPES F' NO2'36'21 "W 100.42' ; NO2'36'21 "W 40.00' 24.01' <�62 SEPTIC DRAINFIELD AREA ISFENCE TO BE/ CRITICAL SLOPES REMOVED (TYP.) FEN — CE TO � I l` ' v REMOVED(T O 11 IE T.M.69-19F` � /V - REVISED LOTS / 84 83'fj 34 4.63 ACRES CSLOP 5L �� v v v 0,00 SEPTIC IS v _ _ / / g / I - DRAINFIELD v` \� ��� �� / T. 9-19J IS AREA S19'54'02"E °� v v v - - - - - / REVISED LOT 8 89.15' Av�� �� v _ i/ / // 8.92+/-ACRES 900v —�- 1 IS ��� �/ / // EXISTING DRIVEWAY ��O� TO BE REMOVED I \ \� s T.M.6919E \ \ \ \ \ \� / 0L �� REVISED LOT 4 J S v�Av v 4.62 ACRES IS 88b V 79 000., vv v 8�. F CcCO ����v vvvv�vvv�� vvv \ \ \ IS �o �V A \�A�\VA\�AA� IF SEPTIC A V�\ DRAINFIELD vp�O��A EXISTING STRUCTURES AREA p rn\ TOBEREMOVED(TYP.) IS N67'50°b1"E 427.73` op �\ IS _. Is 1 238.34' 0"� \� \ \ \ \IV A V IS '�' \ V A - - �6QO"- _- ��//--� VA�\�A\�� ��� IF SEPTIC. -DRAINFIELD AREA -- T.M.69-19D a— ��qp // / /i \ 1 \ \ qo REVISED LOT 3 4.56ACRES- i o RE ISED LOT I LL I LL w APPROXIMATE CATION`STREAM- \ O o VDH \ MONUMENT i� � FOUND ti � �� T.M.69 51H ml I GATES, DAMES P OR O - KERRY D \ 2.148 ACRES O \ O \ 0o \ o. \ ° o,� ��' \ °o OY �'• B oO �� /y9 GAF o °�s�OTy�Gp`°S O �'� 20 O O° O` w .o ioo' WPO STREAM \ o CRITICAL BUFFER b POSE SLOPES ° i O e� "�• �` SEPTIC r IS DRAINFIELD POLE AREA OVERHEAD 1 UTILITY \o 1 LINES o CRITICAL 3.6 ACRES I "-✓ /" _ l l / A A_ i 1 SLOPES _ T.M.69-19D REVISED LOT 3 STOCKTON CREEK LLC G o \ \ \ ` i // /// 8,90 4.56 ACRES �- D.B.5504,PG.614 0 0 — / \ -_ _ _ ooi / REVISED _- - f:Ty1.69=19C �� SEPTIC ^� \ ; 8� T.M.69-�06 ---- REVJ EDLOT2 �� ��--� i/� /.,, DRAINFIELD , `� 8.73ACRES ---,- :7.70ACRES AREA ---- ��: \ / o�A A V A �v �� LEA C6 i / A� v 880 -- / �/ / / / A �8 36• \ S71 '42CO - - - - -- - 21 y _ �75.17' 20.00 C ------ — 458.81 F 144.2 co cc co VDH VDH IS T. M.69-19A7 MONUMENT MONUMENT STATE JUST 10SEPHSCOTT& FOUND FOUND JUST, RJUST AIRZERS��OP Ro 51 CSLITOIPCEASL 21 ACRES D. 8 73 WIDTH RAW HWY.P.B.3_209 TH U 211) VDH MONUMENT VDH FOUND MONUMENT S71'33'38" FOUND 1 1.01' IA _ VDH MONUMENT S43-00'47"W FOUND 95.17' VDH MONUMENT EQI IN11 CRITICAL SLOPES VDH MONUMENT FOUND 80 G� VDH MONUMENT I� FOUND T.M.69-50 FREEMAN, ARTHUR H OR JOANN F 47.729 ACRES GRAPHIC SCALE 40 80 160 ( IN FEET ) 1 inch = 80 ft. T.M.69-51 GRAVES HOME l 26.988 ACRES 33. 320 SCOTT /R. CtrLLINSZ Lie. No. 035791 ,c�- p 1/4/23 O�S'IONei, SA- z D 0 U J ZZ a o Lu O w a m UQ �,..� w o o z z o F•`•� 0 co LVLu F z c� M F-- _ � z N CW � G c� � Q ' z z Ww N W`N Q z z o ZJ J_ 0 i 0- Lu L9H 2: 0 > 06 Ln 1 0 Q z W � U) Z Lu> U ulC Z CO Ln Lu L Lu W W u w U J � z Q O 0 CD U o OL N 1� JOB NO. 222207 SCALE 1 "=80' 2 1992 EROSION &a 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. 3.01 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 POTENTIAL ACCESS BY THE PUBLIC. 3.02 CONSTRUCTION ENTRANCE: A STABILIZED PAVED CONSTRUC7ON ENTRANCE WITH A WASH RACK LOCATED AT POINTS OF VEHICULAR INGRESS AND EGRESS ON A CONSTRUCTION SITE. TO REDUCE THE 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 OPERA77ONS IN 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 WITH THE VIRGINIA EROSION & SEDIMENT CONTROL 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 STAB/LIZAT70N 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 STABILIZA7ON OF THE DISTURBED AREA. INLET PROTECTION APPLIES WHERE STORM CULVERTS ARE EXIS77NG OR TO BE MADE OPERATIONAL BEFORE PERMANENT STABILIZA7ON 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 S17F 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 ELEVA77ON MAY DAMAGE PROPERTY, CAUSE EROSION, OR INTERFERE WITH THE ESTABLISHMENT OF VEGETA7ON ON LOWER AREAS, WHERE SURFACE AND/OR SHALLOW SUBSURFACE FLOW IS DAMAGING SLOPING UPLAND, AND WHERE THE SLOPE LENG774 NEEDS TO BE REDUCED TO MINIMIZE SOIL LOSS. 3.13 TEMPORARY SEDIMENT TRAP. A TEMPORARY PONDING AREA FORMED BY CONSTRUC77NG AN EARTHEN EMBANKMENT WITH A STONE OUTLET. TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS LONG ENOUGH TO ALLOW 774E MAJORITY OF THE SEDIMENT TO SETTLE OUT. USE BELOW DISTURBED AREAS WHERE THE TOTAL CONTRIBU77NG DRAINAGE AREA IS LESS THAN 3 ACRES, WHERE 774E SEDIMENT TRAP WILL BE USED NO LONGER 774AN 18 MONTHS, AND IT MAY BE CONSTRUCTED EITHER INDEPENDENTLY OR IN CONJUNCTION 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 774E SEDIMENT TO SETTLE OUT. APPLIES BELOW DISTURBED AREAS WHERE THE TOTAL CONTRIBURNG DRAINAGE AREA IS EQUAL TO OR GREATER THAN 774REE ACRES. THERE MUST BE SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY FOR THE CONSTRUCTION OF A TEMPORARY IMPOUNDMENT. 3.18 OUTLET PRO TEC770N. STRUCTURALLY LINED APRONS OR 07HER ACCEPTABLE ENERGY DISSIPATING DEVICES PLACED AT THE OUTLETS OF PIPES OR PAVED CHANNEL SECTIONS. TO PREVENT SCOUR AT STORMWATER OUTLETS, TO PR07ECT 774E 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 774E VELOCITY OF CONCENTRATED RUNOFF WHILE ENHANCING THE POTEN7AL FOR INFILTRATION, AND TO STABILIZE SLOPES WITH SEEPAGE PROBLEMS, AND/OR NON -COHESIVE SOILS. USE WHEREVER SOIL AND WATER INTERFACE AND THE SOIL CONDIT70NS, WATER TURBULENCE AND VELOCITY, EXPECTED VEGETA7VE 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 STORMW47ER RUNOFF. THIS PRACTICE, U77LIZING A COMBINA77ON OF STONE SIZES, IS LIM17ED TO USE IN SMALL OPEN CHANNELS WHICH DRAIN 10 ACRES OR LESS. 3.31 TEMPORARY SEEDING. - THE ESTABLISHMENT OF A TEMPORARY VEGETA7VE COVER ON DISTURBED AREAS BY SEEDING WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND SEDIMENTAT70N 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 PROTEC77ON TO BARE SOILS EXPOSED DURING CONSTRUCTION UN77L PERMANENT VEGETA7ON OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED. 332 PERMANENT STABILIZATION. - THE ESTABLISHMENT OF PERENNIAL VEGETATIVE COVER ON DISTURBED AREAS BY PLAN77NG SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS. TO PERMANENTLY STABILIZE DIS77JRBED AREAS IN A MANNER THAT IS ECONOMICAL, ADAPTABLE TO SITE CONDITIONS, AND ALLOWS SELEC77ON OF THE MOST APPROPRIATE PLANT MATERIALS. TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLET70N OF CONSTRUC7ON ACTIlW77ES, ALL AREAS WILL RECEIVE A PERMANENT VEGETATIVE COVER. 3.35 MULCHING APPLICA7ON 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 VEGETA7ON BY INCREASING AVAILABLE MOISTURE AND PROVIDING INSULA77ON 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 STABILIZAT70N BY THEMSELVES, CAN BE USED IN CON✓UNCT70N WITH TEMPORARY SEEDING. 3.37 TREES SHRUBS VINES & GROUND COVERS: STABILIZING DIS77JRBED AREAS BY ESTABLISHING VEGETATIVE COVER WITH TREES, SHRUBS, VINES, OR GROUND COVERS. TO AID IN STABILIZING SOIL IN AREAS WHERE VEGETA7ON OVER THAN TURF IS PREFERRED, TO PROVIDE FOOD AND SHELTER FOR WILDLIFE WHERE WILDLIFE HABITAT IS 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. 336 BLANKET MATTING: INSTALLA77ON OF A PR07EC77VE COVERING OR A SOIL STABILIZA7ON MAT ON A PREPARED PLAN77NG AREA OF A STEEP SLOPE OR CHANNEL TO AID IN THE CONTROLLING EROSION ON CRI77CAL AREAS. 3.38 TREE PRESERVATION AND PROTECTION. PR07EC77ON OF DESIRABLE TREES FROM MECHANICAL OR OTHER INJURY DURING LAND DISTURBING AND CONSTRUCTION ACTIVITY. TO ENSURE THE SURVIVAL OF DESIRABLE TREES WHERE THEY WILL BE EFFEC77VE FOR EROSION AND SEDIMENT CONTROL, WATERSHED PROTEC77ON, LANDSCAPE BEAUTIFICATION DUST AND POLLUT70N CONTROL NOISE REDUCTION SHADE AND OTHER ENVIRONMENTAL BENEFITS WHILE THE LAND IS BEING CONVERTED FROM FOREST TO URBAN -TYPE USES. APPLIES IN TREE-INHAB17ED AREAS SUBJECT TO LAND DISTURBING ACTIVITIES. 3.39 DUST CONTROL: REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOL177ON 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 WITH 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 Tall Fescue 95-100% - Improved Perennial Ryegrass 0-5% - Kentucky Bluegrass 0-5% High -Maintenance Lawn 200-250lbs. - Kentucky 31 or Turf -Type Tall Fescue 1000/0 General Slope (3:1 or less) - Kentucky 31 Fescue 128 lbs. - Red Top Grass 216s. - Seasonal Nurse Crop • 20 III 150 lbs. Low -Maintenance SloImo( 3:1) Steeper than - Kentucky 31 Fescue 108 lbs. - Red Top Grass 2 lbs. - Seasonal Nurse Crop* 201bs. - Crownvetch •• 201bs. 150 lbs. Use seasonal nurse crop in accordance with seeding dates as stated below: April ... .. . Annual Rye February16thlhrou A .............. P Y through 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 42 to 52 2 tons per acre 52 to 6 1 ton per acre TABLE 3JI-8 ACCEPTABLE TEMPORARY SEEDING PLANT MATERIALS -QUICK REFERENCE FOR ALL REGIONS' Rate Pllnlmr Dates Sce6 (Ibs/aae) Sept L - Feb. 15 50/50 Mu Af M.A R"'. (Uh...ulti.Bo..) a 50 - BIDCereal (Winter) Rye (Sera], ce,eAe, Feb.16 - Apr. 30 An.a Ryegrna W - im (Loll....bl-Bn..) 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 REGULATIONS 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-J.-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 ACT7077ES 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 Y P P g 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. Agricultural grade limestone shall be applied at 90lbs/1000sf, incorporated into the top 4-6 inches of soil. Fertilizer shall be applied at 1000lbs/acre and consist of a 10-20-10 nutrient mix. Permanent seeding shall be applied at 180lbs/acre and consist of 95% Kentucky 31 or Tall Fescue and 0-5%e 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 f ass. Silt fence and diversion dykes 0 g � 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 COND177ONS FROM TABLES 331E AND 331C. NOTE THAT TABLE 331B PRESENTS PLANTS WHICH CAN BE USED WITHOUT EXTENSIVE EVALUATION 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 PREPARAT70N IS ESSENTIAL. AN EVALUATION 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 NTH BULLDOZER CLEATS IS MOST EFFEC77VE ON SANDY SOILS. THIS PRAC77CE OFTEN CAUSES UNDUE COMPACT70N OF THE SOIL SURFACE ESPECIALLY IN CLAYEY SOILS, AND DOES NOT AID PLANT GROWTH AS EFFEC77VELY 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 KENTUCKY BLUEGRASS, SHOULD BE PLANTED NO MORE THAN lq INCH DEEP. 07HER GRASSES AND LEGUMES SHOULD BE PLANTED FROM # 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 OF EROSION & SEDIMENT EROSION CONTROL NOTES &a 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 76.93 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 SEPARA77NG 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 ACTIVITIES 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 SELEC77ON OF SEED MIXTURE WILL DEPEND ON 774E 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. GERMINA7NG VEGETAT70N IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS. SELECT70N OF SILT FENCE SHALL BE MAINTAINED ALONG THE LIMITS OF DISTURBANCE AS SHOWN ON THE PLAN TO SEED MIXTURE WILL DEPEND ON THE 77ME 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 SO/LS MAP IS INCORPORATED INTO EROSION CONTROL PLAN PHASE l WITH SOILS DATA INCLUDED TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. WITH 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 I: SILT FENCE. 1. NOTIFY ALBEMARLE COUNTY TO SCHEDULE A PRE -CONSTRUCTION MEETING AS REQUIRED. A TEMPORARY SEDIMENT BARRIER CONSISTNG OF A SYNTHE7IC FILTER FABRIC STRETCHED 2. PRIOR TO DISTURBANCES, THE LIMITS OF DISTURBANCE SHALL BE FLAGGED AND THE TREE ACROSS AND ATTACHED TO SUPPOR77NG POSTS AND ENTRENCHED. TO INTERCEPT AND DETAIN PROTECTION FENCING SHALL BE INSTALLED. SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION OPERATIONS 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 VEGETA7VE 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 SELECT70N 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 COMPLE77ON 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 VEGETA7VE COVER ON DISTURBED AREAS BY SEEDING EROSION CONTROL PHASE l 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 CONSTRUC7ON 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 H 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 CONSTRUCTING 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 SWIM 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 POR77ON OF THE SITE. TEMPORARY SOIL STRUCTURE. MAX/MUM EFFECTIVE LIVE /S 18 MONTHS. STAB/L/ZA TION SHALL BE APPLIED WITHIN SEVEN DA YS TO DENUDED AREAS THA T MA Y NOT BE A T 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 THE 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 INSTALLAT70N OF VARIOUS KINDS OF SEDIMENT TRAPPING MEASURES AROUND DROP INLETS ARE STABILIZED AND THE INSPECTOR GIVES PERMISSION. OR CURB INLET STRUCTURES PRIOR TO PERMANENT STABILlZA170N OF THE DISTURBED AREA; 11. MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND LlM11ED 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 CONSIRUC77NG 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 EFFEC77VE LIFE IS 18 MONTHS. TEMPORARY SEDIMENT BASIN: SEDIMENTA770N. A TEMPORARY BARRIER OR DAM WITH CONTROLLED STORMWATER RELEASE STRUCTURES WHICH IS PHASE 111A: FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. IT 1O.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 77-IERE IS SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY PERMISSION. 11. MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND MAXIMUM EFFEC77VE 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 STABILIZATION 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 STORMWATER 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 ELEVA77ONS 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 79 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 STABILIZATION: 14D - CHESTER LOAM-157 TO 25X SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON S. HIGH RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY.NHYROLOGIC SOIL PERMANENT SEEDING WILL BE APPLIED TO ALL DISTURBED AREAS AS PER THE PERMANENT GROUP B. GROUUPP. B STABILIZATION OF THIS EROSION & SEDIMENT CONTROL NARRATIVE. 14E - CHESTER LOAM-257 TO 45% SLOPES. 774ESE DEEP, WELL DRAINED SOILS ARE FOUND ON AFTER CONSTRUCT70N 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 - DEPTH 36B - HAYESIWLLE LOAM-2X TO 79 SLOPES. THESE DEEP WELL DRAINED SOILS ARE FOUND ON LIME - 2 TONN S/ACRE HILLSLOPES. MODERATE RUNOFF, KITH 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 - HAYESIWLLE LOAM-77 TO 15X SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON CREEPING RED FESCUE, 37.5 LBS/ACRE ARGILS KENTUCKY BLUEGRASS, 37.5 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 818 - THURMONT LOAM-27 TO 79 SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON ON A REGULAR BASIS INTERFLUVES. MODERATE RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY. HYDROLOGIC SOIL GROUP B. MAINTENANCE • IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CHECKED DAILY 81C - THURMONT LOAM-7X TO 159 SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON AND AFTER EACH SIGNIFICANT RAINFALL. SPECIFIC ATTENTION WILL BE GIVEN TO THE INTERFLUVES. MODERATE RUNOFF, W1774 MODERATELY HIGH TO HIGH PERMEABILITY. FOLLOWING ITEMS HYDROLOGIC SOIL GROUP B. A. SEDIMENT BASINS AND/OR TRAPS WILL BE CLEANED AND MAINTAINED IN 89B - UNISON SILT LOAM-2Z TO 7.Z SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK. FANS. MODERATE RUNOFF, WITH 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 REPLACED. - 89C UNISON SILT LOAM-79 TO 159 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.HYROLOG/C 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 BARB/ER. 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. V) Z Ou ''^w V) `H W ce SCOTT /R. CDLLIM Lic. No. 035791 1/4/23 z O a U U) Lu 0 z O w of w Q 0 z O U Lu oe w to O F- z O U) X In M co a F z U c > L9 N U 0') i--I > U Z 4_* W` 0 m co o CY) F.- 3 CY) Z:U N 0 0 w U U ,'I- cri G , 1 Q N U z 0 rn W N 2:>. N H W Q Q � > 2: Z W _J Q � a- z U > a- _J 00 w �� � V LU F_ / I— o z3 O O JN I v U 1_ N 0 U ZQ z �- = Z:G WC) W 0 1 U-) 2:a Y H� Q o w W > '� Q ram( E Ul M v)Co ^� o F�/'� CD 2:W V / O Z ZW �z (f)w Of W O f- Z W a J L w >' 0� z J � O n Q CD Y D 0 0 o U o U N U 2 C U a r U V F- � 222207 AS NOTED I Paved construction entrance for erosion ton IrTll plans 1992 3.05 1992 3.05 ,,��� TH OF 1992 3.17 CONSTRUCTION OF A SILT FENCE CONSTRUCTION OF A SILT FENCE 1992 3.11 o f� 24STRUCTION -7o MIN. (WITH WIRE SUPPORT) (WITHOUT WIRE SUPPORTS A=--ESS 3. SIM-2A ASP„ALI TOP STONE -LINED WATERWAYS SCOTT LINS'Z COURSE DUST INC 1. SET POSTS AND EXCAVATE A eXe 2. STAPLE WIRE FENCING TO THE POSTS. 1. SET THE STAKES. 2. EXCAVATE A 4"X 4" TRENCH TEMPORARY RIGHT-OF-WAY O )>t 2X TRENCH UPSLOPE ALONG THE LINE STALEST ALONG THE LINE OF Lie. No. 035791 PAVEMENT of Pons. STAKES. IIIII�II�� 6'MAX. DI W 'd+ji 1/4/23 - _ 6 MN z A AGGREGATE BASE % � VDOT //1 e6-9 SSI E���COARSE AGGREGATEPROOL ONALSCONE 70' MIN. h -` �- ^�l- / - I FLOWCONSIR ACCESSUCt104 _ 0ASPHALT PAVEDACCESS -w wASMFMCx _ _ "-III - o4" FILTER CLOTH -II� Co EXISPNG 1 / 3. STAPLE FILTER MATERIAL 4. BACKFILL AND COMPACT g. MINIMUM 27i PAVEMENT) FLOW - III Jill _ 1r TO STAKES AND EXTEND THE EXCAVATED SOIL. 2TG '2' 1111 - 4- IT INTO THE TRENCH. V-SHAPED WATERWAY WITH STONE CENTER DRAIN � t NOTE: A GRANULAR FILTER MAY BE SUBSTITUTED FOR FILTER CLOTH. o 3. ATTACH THE FILTER FABRIC TO THE WIRE 4. SACKFILL AND COMPACT THE /v POSITIVE ORAINAGF. FENCE AND EXTEND IT INTO THE TRENCH. EXCAVATED SOIL. " TYPICAL GRAVEL STRUCTURE `MUST EXTEND FULL WIDTH Lo TO SEDIMENT .- Of 3 OPERATIONS AND EGRESS ` TRAPPING DEVIC _ - II �-- /Jill W z PLAN / / / . 2/3_ W U - /// - COMPACTED SOIL 4 12 U) w °- - _ / r FLOW / _ v' J x II d IF Z Z y - t 2' INN. - VE tAtAMNA' � - = p IIII IIII SHEET N - - F w I ,101MENt V / / v T FLOW INSTALLATION 1 _ " - t 8" - - m -- --�_ Y� y.m1-iA,II'PII»�_ PERSPECTIVE VIEW)IR�I - J4 s tYX_ Sf"'Sd1 : ": I �" FLOW III I 18" Mom' - llllLl _ O � O rIITER CLOTH- ' II KEY IN FILTER z FILTER CLOTH = IIII z Z ° III �I1 ' n A '�I'II CLOTH 8' -9' u � � o SECTION A -A - I FLOWt D \\� - EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. - - I j', `/ rn A unnint tul wallet lap of 1 aMb naut he ML.IaOcd wilh a nTMwumn I wLh baBLock / B'q :4 g• MINIMUM PARABOLIC WATERWAY WITH STONE CENTER DRAIN La L ° i'llutU@ Pane :Iq'phul¢ a wash hoH'e Audi a dlallidin ui I K uldih II -I Ildeyt.1le FILTER FABRIC �j//\i �\, �Ln c olKlalll pt ems. IUe \\ T �I wales must lie /inletl aw:IV Sulu tile ellll ;late (-- All IIII= NOTE: A GRANULAR FILTER MAY BE SUBSTITUTED FOR FILTER CLOTH. J aplNOTed>efltul ilea 10Ia1MPe etiallalt Ali sLNluuad <IIaB be p1c9'ellled t1OW POINTS A SHOULD BE HIGHER THAN POINT B. o entesum storm dhaus. Lwchess of wato cotreN. � - W'� DRAINAGEWAY INSTALLATION TYPICAL EARTHEN STRUCTURE z U -I - (FRONT ELEVATION) `o PAVED WASH RACK Source: Adapted from Installation of Straw and Fabric Filter Source: Adapted from Installation of Straw and Fabric Filter Barriers for Sediment Control, Sherwood and Wyant Plate 3.05-2 Source: USDA-SCS Plate 3.17-2 ° " ` I Barriers for Sediment Control, Sherwood and Wyant Plate 3.05-1 Source: Va. DSWC Plate 3.11-1 a a 1992 3.08 1992 3.18 1992 3.36 1992 3.38 0 SILT FENCE CULVERT INLET PIPE OUTLET CONDITIONS TYPICAL ORIENTATION OF FENCING AND ARMORING PROTECTION A A TREATMENT - > 1992 320 0 ENS (SOIL STABILIZATION BLANKET s 3d------------ sLHouPLrow I ROCK CHECK DAM rn D CUT/FILL QUANTITIES: a o ,E -- ---------- --- --- -�---------------------- dQ 2 ACRES OR LESS OF DRAINAGE AREA: ti - `l---T-' NE SHALLOW SLOPES, STRIPS OF ED TOE OF FILL i I PIPE OUTLET TO FLAT MAY BE PROTECTIVE AC COVERINGS GRIP UNE I VOLUME OF CUT FOR LIMITS OF DISTURBANCE: CULVERT AREA WITH NO DEFINED I I THE SLOPE. ACROSS g --. 31,SOo CU. YARD PLAN VIEW CHANNEL � I I I a, VOLUME OF FILL FOR LIMITS OF DISTURBANCE: � I I FILTER CLOTH 33,000 CU. YARD > - i - SNOW FENCE0 L 5 BERM I (OPTIONAL) �- NET VOLUME OF FILL FOR LIMITS OF DISTURBANCE: I DOWNSTREAM VIEW 1 Soo CU. YARD ° WHERE THERE IS IA BERM AT THE TOP N THE SLOPE, ( I / ._ I I 0 8 .-• BRING THE MATERIAL OVER THE BERM AND ANCHOR R BEHIND THE BQHM. L: ---- --L== - m a on 00 VDOT Q3 6" OF TOPSOIL SHALL BE HAULED OFFSITE TO A T� > COARSE AGGREGATE J , N PERMITTED (SWPPP) SITE tiM S'TF 0 TOE OF FILL SECTION A -A FILTER CLOTH KEY IN e--R"; RECOMMENDED FOR ENTIRE PERIMETER SLOPE FLOW Pill2'J 3' ` J AS EXPLAINED IN EACH PHASE NARRATIVE AND M 3 BOARD FENCE{ err REITERATED HERE PERMANENT OR TEMPORARY W SILT FENCE ON SLOPES, APPLY / Z DISTANCE 15 6' MINIMUM IF ROW A PROTECTIVE COVERING PARALLEL $$ 0 IS TOWARD EMBANKMENT TO THE DIRECTION OF FLOW ,f CORD FENCE SOIL STABILIZATION SHALL BE APPLIED TO N W a `` AND ANCHOR SECURELY. 3 TLow A 3do (MIN.) - 2-10 ACRES OF DRAINAGE AREA: DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL PLASTIC FENCE a ____________ _ GRADE IS REACHED ON ANY PORTION OF THE SITE. M a ** do ! = CORRECT METHODS OF TREE FENCING OPTIONAL STONE COMBINATION :---------- PIPE OUTLET TO WELL STABILIZATION SHALL BE APPLIED WITHIN SEVEN N o DEFINED CHANNEL 3, DAYS TO DENUDED AREAS THAT MAY NOT BE AT p W 1 BRING MATERIAL DOWN TO A LEVEL AREA BEFORE c ' II IY� _ FILTER cLorx FINAL GRADE BUT WILL REMAIN DORMANT Cn W 3 1 O' 1 s' PLAN VIEW TERMINATING THE INSTALLATION. TURN THE END t I (OPTIONAL) N UNDER a AND STAPLE AT IY INTERVALS. (UNDISTURBED) FOR LONGER THAN 3o DAYS. N o L aW(DOWNSTREAM VIEW) J Y PERMANENT STABILIZATION SHALL BE APPLIED TO L--L o VDOT D R -• DITCH FLOW COARSE IAGGREGATE AREAS THAT ARE TO BE LEFT DORMANT FOR MORE ; Z < - FLOW v d IN DITCHES. APPLY PROTECTIVE COVERING THAN ONE YEAR. _ ° )i PARALLEL TO TIME DIRECTION OF FLOW. FLOW 2y 3' LLI ILU TO USE CHECK SLOTS AS REQUIRED. AVOID \\\ SECTION A -A JOINING MATERIAL IN THE CENTER OF /A r'I'w 1 J 0 FILTER CLOTH KEY' IN 6--9-: RECOMMENDED FOR ENTIRE PERIMETER THE DITCH IF AT ALL POSSIBLE. NOice,.// lX - AyrNR'Er z J //''�� ° NOTES: 1. APRON LINING MAY BE RIPRAP. GROUTED RIPRAP, CAUTION INAM J LL J o CLASS I RIPRAP BASKET, OR CONCRETE. d VDOT I13, #357 OR #5 COARSE AGGREGATE 2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED ON CORRECT TRUNK ARMORING CLASS I RIPRAP TO TO REPLACE SILT FENCE IN " HORSESHOE - WHEN 00 C $ ^ LL O HIGH VELOCITY OF FLOW IS EXPECTED USING PLATES 3.18-3 AND 3.18-4. •� (f, LL 3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT LESS THAN B INGRES, TRIANGULAR BOARD FENCE LU o Source: Va. DSWC Plate 3.20-1 z o Source: Adapted from VDOT Standard L9\ O 3 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 O / U J 1992 3.01 1992 3.07 ~ 3 TEMPORARY DIVERSION DIKE 1992 3.14 1992 3.24 Q Z z o LU SAFETY FENCE U O SILT FENCE DROP INLET EXAMPLE PLAN VIEWS OF TEMPORARY CULVERT CROSSING11-4 PR 0 TECTION U) Im Will -BAFFLE LOCATIONS IN Y 1.-1 0 0 I, CAPACITY OF PIPE CULVERTS LLJ C -: 2 X 4' VDDD FRAME DROP INLET Compacted Soil SEDIMENT BASINS VDOT III COARSE AGGREGATE 6" DEEP TOGETHER - FLOW - \ T • VTTH GRATE / ° 1/2 DIAMETER FARTH NLL COVERED II D OF PIPE OR tY, BY' URGE ANGUTAR SON■■■ I 1B' min W15 ROCK men L. MEN ISMA%. TRAIT Flow D 2 NO SCALE GREATER INFLOW on iiiiiii_,..;:iii .: III- 11_ - RISER Ul O of - IIIIII IIIIII \ l LU (n w !' 3' MIN. _ \ ��. D/2 w U) Z L TOTAL DISTANCE = FROM Lij v 4.5' min. �1 _ NORMAL POD. ` THE POINT OF INFLOW O w GATHER `\ AROUND THE BAFFLE TO �'A Y j FILTER CLOTH I^■' ��// THE RISER. li :� `� L.f�In I �� ExcrsS `� tl LU w z . •.. .t:, . . :: '.': AT CORNERS NORMAL POOL C W O LNL U PERSPECTIVE VIEWS �0/2 � RISER 0 flOFF E ELEVATION w U STAKE SPACING BETWEEN CHECK DAMS °- PERSPECTIVE VIEW IeL z 1'I� J FABRIC h AGGR G1 WARSE IMGE ANGUWR Q O > L =THE DISTANCE SUCH THAT POINTS NORMAL POOL RISER INELow AGGREGATE ERARTH FILL I_ � .N I yt.,,t I1 A AND B ARE OF EQUAL ELEVATION I U ♦ 'i' , wV i :c, y V"iy'' O IN. 0 N �.r w ° r / rp .lAn<•. � - � �-' -BAFFLE ELEVATION OF STAKE AND ~ �L I ' L2 °/2 FABRIC ORIENTATION DETAIL A II /.� _ I L LI + L2 I E "FLOW 5D' MINIMUM I i i I 0 I / I I 50' MINIMUM i SPECIFIC APPLICATION SHEETS OF 4' X e' X 1/Y EXTERIOR Ir TOP OF BANK NI _ TOP OF BANK THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE THE PLYWOOD OR EQUIVALENT _ O ILLa; ""`""LsT 1'1 Ll� " ,,,.° „• INLET DRAINS A RELATIVELY FLAT AREA (SLOPE NO GREATER Source: Va. DSWC Plate 3.20-2 srarvn Gu++vu. IY = ° 6 MAX RISER CREST ELEVATION d InU 5• MIN. wS"" m ""'° '°0iN4 THAN 5%) WHERE THE INLET SHEET OR OVERLAND FLOWS (NOT i i i - EXCEEDING 1 C.F.S.) ARE TYPICAL. THE METHOD SHALL NOT 11 4' 11 I 0 70B NO. PERSPECTIVE VIEW PERSPECTIVE VIEW APPLY TO INLETS RECEIVING CONCENTRATED FLOWS, SUCH AS I POSTS MIN. SIZE OR SrROUND. SET SQUARE DIVERSION AND/ DIVERSION AND/ AT OR SWAI.E OR SWPLE 2222707 ° I I I I I T PLASTIC FENCE METAL FENCE IN STREET OR HIGHWAY MEDIANS. LEAST T INTO THE GROUND. PLAN VIEW LliB' SCALE ° AS NOTED o 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 Plannin and Design Manual. 1988 Plate 3.07-1 SHEET NO. .�.E B 8n Source: USDA-SCS Plate 3.14-6 4 ° s H VIRGINIAEROSION&SEDIMENTCONTROL _ �♦ EROSION CONTROL _ - ♦ ' / �`� HANDBOOK SPECIFICATION NUMBER / - - / \ V A A� / �/ � \ / \ \ \ \ \ � \ NOTE: ALL DIVERSION DIKES GREATER THAN z°io SHALL / SAFETY FENCE / \ \ \ \ \ \ \ - \ \ \ \ \ \ \ \ \ \\\ REQUIRE STABILIZATION. PLEASE SEE PLANS AND 3.0a SA _-/ / / `� \\ \ \ _ \ - \ \ \ \ \ \ \ ♦ � T.M.69-6L v V A _ �� _ _ _ � \ � � � v � v A � A A � \ V v TABLE BELOW FOR STABILIZATION REQUIRED FOR / LOT 6 T.M.69 6C / - - -- _ - - / \ \ \ / \ \ \ \ \ \ \ \ \ \ \ EACH SECTION OF DIVERSION DIKE. CE CONSTRUCTION ENTRANCE 3.02 / V A A v A A / STUART I�AYLOR SMACK \ I GIBBON, EVERETT E JR \ \ � � \ \ \ \ \ V A v , . - \ V CRS CRS CONSTRUCTION ROAD STABILIZA TION I- - D.B.5246-521 s FIELDS / // \ \ \� �� \ Diversion Dike Stabilization Lining JobNurrber: 222207 ♦ D.B.3415-704 /07 PLAT v 1.07 ACRES A v v v SILTFENCE 3.05 lP STORM DRAIN INLET PROTECTION 3.07 / / / / / / / 1 V is - O ♦ / / // / u_. �\\'SOILTYPE36C- ,ys' ClP CULVERTINLETPROTECTION 3.08 - \ /✓ / // \ - r LL �. _ �_ ___- ♦ / /// \ _ _�\ \\ � sou-r\Prrr DD �� TEMPORARYDIVERSIONDIKE 3.0g _ B \ - �� \\ �� ! e .. �\,b ... W� TEMPORARYROWDIVERSION ` / / / l \ \ - - �\ o °� ' \� "` / T M 69 51B \ as � � \ _ �.�/ / / // REVISED ipT 3 \ / / /f BTOCKTON CLLC \ \ \\ -' SOIL TYPE o Q. ` MCGLANAHAN, DENT \\ \\`--%- \ \ \ 2.63 ACRES `� \ \ \ `. BOUNDARY (TYP.) 2Y \� :\ FIELDS \ \\ - ST SEDIMENT TRAP 3.13 \ - - - - - - %: �� � \ - u ES- ' D.6.5504, PG._614 ------ �\ \ L Y'.,� /'° \ ;� \. �•a rd S,� 8 \\ 0 - 0 0 - \ ACRES SB SEDIMENT BASIN 3.24 - 1 ,/ ✓ \ ♦ O \ \ 04 Calculations M.S-5°% MmV=3.Ofpr EG MuV=4D EG3T*A,MmV=7Df1s Sta From Sta To T. (mm) I C Valoe Area (ac.) I CA c 1 12 (m/hr) Qr (cfte) Slope (ft/ft) Earth n=0.03 Jute(Sod (n�.0 Paved (n=.015) VeL Depth VeL Depth Vet I Depth Note: Section A Diversion D&e 10+00 1 15+00 8.0 1 OA5 1 2.99 1 1.351 4.9 1 6.59 10.04801 1 1 2.03,Jps 1 0.81 R Note: Section B Diversion Dike 15+00 1 21+20 8.0 1 0.45 1 4.12 1 1.851 4.9 1 9.08 10.06001 1 1 4.00 Jps 1 0.87 R Note: Section C Divetsion Dke to SE; 1 21+20 1 26+72 1 6.0 1 0.45 1 0.62 1 0.28 1 5.4 1 1.51 10.02801 1 1 1.86Jps 1 0.52@ Note: Section DDiversion D&e to SB I 10+00 1 14+80 1 6.0 1 0.45 1 1.89 1 0.85 1 5.4 1 4.59 10+03001 1 1 2.58 Jps 1 0.77 fr Note: Section E Diversion Dike to ST 2 10+00 1 18+16 1 6.0 1 0.45 1 0.70 1 0.32 1 5.4 1 1.70 10.06101 1 1 2.57Jps 1 0.47 it Note: Section F Diversion Dike to ST 2 10+00 1 14+95 1 6.0 1 0.45 1 1.00 1 0.451 5.4 1 2.43 10.07801 1 1 3.110s 1 0.51 R Note: Section GDivenion Dike to ST I 10+00 1 21+13 1 7.0 1 0.45 1 0.78 1 0.35 1 5.2 1 1.83 10.075012.88 fps 1OA6 ft Note: Section H Diversion D,ke to ST 3 10+001 14+10 1 6.0 1 OAS 1 0.70 1 0.31_ 5A 1 1,70 10,04901 1 1 2.36fps 1 0A9 ft OP RR _/ �\ I�• l - ,Oyc=x \�OUTLETPROTECTION 3.18 � ° �SECTION STABILIZATION LINING REQUIRED p» IRIPRAP 3a9 Q O O % / i A JUTE EC-2 - - TS TS TEMPORARYSEEDING 3.3a --- I/ JUTE, EC-2 B PS PERMANENTSEEDING 3.32 - - - / A \ V A A v A \ AREATO `. 6' V� ° J ` p l ' © JUTE EC-2 PS _ � / � - - . 1 \ � DRAINAGE DIVIDE - 1 ,, � � \ MU MU MULCHING 3.35 �� / // --- V A v \ �� - - - 1�\V �EDI 6ACRESMENT SIN - _ - olLrvv�c�e V� _ ` \ (TY \�' D JUTE EC-2 22 vwwv� BOUNDARY TYP. - \ \ \ - . \\ \\ ° -�♦ // / p o o JUTE, EC z TP TREE PROTECTION 8 / \ \ \ \ \ \ \ \ \ _-` = \ \ ' SOIL TYPE -SIC -' -gib / o 1 33 i / / SOIL TYPE v v : _ / / t ( )- \ - -- �� �♦ A / / �-- -t '/ O O DC DC DUST CONTROL 3.39 I / �� - - _ � � ♦ � � - � JUTE, EC-2 //� APPROXI' AATr v &L`TYPEi4D \ \ ; \ \ \ .° __ / / o / - - OG JUTE, EC-2 BM + + + + + SOIL STABILIZATION BLANKET 3.36 \ \ _ _� -- -.� \ - - \ \ \ \ \ \ - - ` \ \ , �� / - _ / ; ,` LOCATION S I REAM \ \ \-T JUTE,EG2 / / I/ r� A V A A _ v A v ♦/ v \ V A ♦ / v - v v A - v v v v \ _ ---- T- V \ A\ � \A V\ V A\ A �A!, \� 1, \ 1 I 1 I I IIIII ' /v/ -v-- \ V \ ♦ ♦ \ \�V. V \ � .v 'V/� /♦ I / V// / /// v \ \ \\\A Dv E - \-- R- _ v\ Vv AA\ \\ A\ � \ v ♦ � / i--/S�O�,� IL TYPx,�O�1`LEI Re HEAD V� ULITY ` vSOLTYPE ARY (TYP.)♦�, sdl� - L//X BOUNDARY "NOTE: CO�o NTRAC POSTVEDAINAGE CONTRACTORSTAGINGARL, SOLTYVD o ALONG DIVERSION DIKEI DOUBLE WALLED FUELING TANK, oDUMPSTER W/COVER, SOIL TYPE MONI' I l l I \ \ I\ \ \ \ \ \ / AND PORTA-POTTIES 6-WIDE SF \ \\ \ \ \ \\\\\ w/WI E szs // / ,y / SOIL TYPE -! \ \ FOUND \\\\\\� CONCRETE °-�'ToroF, CRI CAL - v \ V� i / BOUNDARY(TYP. Av A V�\ \ A WREA /� - DAM \ w/ WIRE �'�sLEs �� \ SUPPOR ♦ / �� o A, \ �A \ - - OUTA v _ 'SUPPORT A I - `% o \ a DRAINAGE DIVIDE 9z, v ♦ v so' !. \ _ �_ 3 -•v.. •� I o $ .° `, TYP. �' / ILTYPE Sic .♦� O .V .v T. N1.69-51 H'. R/VV DIVERSION AND DIVERSION DIKE ( ) \ \ / PROPOSED LIMITS OF GATES, J,4ME5 P OR 3 d p ,TO SMALL SEDIMENT TRAPPING DEVICE\.; \' 900� \ �_ TP / DISTURBANCE=i6.93ACRE5 00� , �/ KERRY D \ r/ ♦ \.SO�TVPEi E / FOR CONSTRUCTION ENTRANCE ° " e �� `.� I \ ♦ 4 ; ♦ \ G `\ / - �� p"`', ' i \'\ 2.148 ACRES \_ /I r ♦ ' ` \ \ PROPOSED FENCE CRITICAL \ ';LOPES h.. \ i "' � ♦ _ \ T.M,69-6M ♦ ST4 93 :, ♦ AROUND SEDIMENT \, I ♦ ,� Oo \ \ \ r ♦ > RE�iTOSEDIMENT / EVISEDLOT 7 �I B, �' .'t ;+; L' SOIL TYPE � TRAP \ ,3=1.28ACRES i ,/ o I \V �\I� lz s D i i A VA II SAFI "s�r rTr r,`G)- ' A 1 ST �\ °e TRAP \� F.C.AGKERMANTRUST _ - Y AREATO - _ solLrvPEr4D ,- -RT /I / o \ I Q __� , _ .. D 6.4733�3'* - PROPOSED FENCE o * ' -- / NOTE: CONTRACTOR TO ♦ p D. B.4733 20& 21 LAT I �I A A i _ 2.0o ACRES P ����� v AROUND SEDIMENT ' s g - - _ ENSURE POSTIVE DRAINAGE / I i1 p rV A v ,' 1 I 2.00 CRES TENT 'wloE �* ALONG DIVERSION DIKE ♦ A - \v ` D.B.4456-4 I ' ate- '�`'= ' �a F v� T POE - • ° V A \ v v A D.B.3530-234 PLAT ,l l /I / 1 - I R \ N\ - -- \ _ - °' \ \ \ - STi * & y 9 M 9 p0 \\ { \\ F \ Ilk ° J / �,' p \\ �• \ \ \\ \ SOILTYPE y 99 A �. a2'x7o'MIN. CE Nr BOUNDARY TYP. \. - . \ n ,P w/WIRE 9� +\ ( ) \ \� l` �\ \\ \F ., *I*** & 'm SUPPORT 86' �. `�,♦, \' -- - 9 / I i / / OLL�` •''\.'R� \ \..... �% v d �`4, SF � NOTE: THIS CONSTRUCTION / \ ��� ` \ ,yi \, \ \\' - `' \\ \\ ,> ♦ SOI TVPe s C / w/ WI o LL �� PROPOSEDTEMPORARY \� \ \ 1 _ UPPORT / 80 LL \ - T M ENTRANCE SHALL BE INSTALLED, I / , -- ----- ♦ \ \ . 6'WIDE {IP \ - / I J �9 OPERATED, AND MAINTAINED BY yi \ \ \ \\ \ �\ / aM >r ;- ,� \ r _ - / I /PS �A©\ 69 51 STOCKPILE SURROUNDE ♦ I* * * * * i of THE CONTRACTOR. ALL / / \ BY SILT FENCE \ \ \ \ pa ♦ o a, \ J / p '� �� G� GRAVES HUNiE / WASH RACK ♦ ° I \ \ \ . i - ♦ -,' /. gym- A ♦ \ / / \• r' F y 26.988 ACRE / CONSTRUCTION TRAFFIC IN THIS/ ♦ "g SOIL TYPE 6B ♦ o , / AREASHALLUTILIZETHIS-` FLOW DIRECTION ♦� \ ��� \�LI \\ \ \ \ \ O ��♦\ �/ as°- \ \ ♦ SOIL TYPE / / p / a� \ �0' p�TG �. BOUNDARY TYP. CONSTRUCTION ENTRANCE. J i , ARROW (TYP. ♦ \ AREA TO \ \ •� \ °9 = s \ a ( ) h / o \ �p S F)y O ' / ) ♦ .AREA TO ♦ \ _-9 \'� J o \ \ SEDIMENT TRAP ` \\ ♦ D ` \ \ / p '" r / / I / /' / \ \ \ ♦♦ _ , 1 \ --` 2-2. ACRES `\ \ \ \ �\ ' - °' \\ SOIL TYPI �, O v v v - _ \ ♦ SEDIMENTTRAP \ \ SF T.M.69 6G / / / \ ; = ACRES S; DRAINAGE DIVIDE 4 SOIL TYPE \ ♦ w -----SUPPORT e89e solL / / o LL \ \ LOT 1 / J F D a ( ) v - A �� v \ \ \ SUPPORT , 9 5 TYP. / BOUNDARY (TYP.) \ \V A * ♦ MU-_ J - �g ARE 70 DD = I� FRANK DON LE'Y & / l NOTE: CONTRACTOR TO o / ♦ r((r,r_ 9= r,.88AC GARLA DONLEY / I / ENSURE POSTIVE DRAINAGE / _ A\V \ ' ee o �° ��� TS A / - i / \ v , ��is ° SLC e soLL / -- 11 / / - 8z E I A \ v e� . ` /' 96� , m 1 CRI1 CAL / pYj " a u.8� / / \ V A NG DIVERSION DIKE / s � Es i B ,--- % N LL - o / 85 &6 PLAT 1 I // \\ \ \\ ��f / ST2 __- I / ' AREA TO �� �\ � i �� / / O / / \ \ ��. a: 9R ♦ m �<� \ ♦ ' I + SEDIMENT BASIN / k1� \ T TOTE: ONTRACTOR TO / / ° 1 LL \ IS 94°--- - '�Z..�solLrvPE36c .�i / - - ��) I I \ ii. of °° - I ENSURE POSTIVE DRAINAGE / ♦ oPoe SF 1=7.a6ACRE5 1/ + \\ - �� ♦ - - + M. w/WIRE s I D ALONG DIVERSION DIKE ,SOIL TYPE 6C ,-gzo--_ 1 \ Pao, FOR � - J C S Iy \ 1 1 p - - i' / SOIL TYPE 8gC !IS/ tW w/ WIRE / / / 1 M ai \ VID C � � r LAsslsroNE � I � /11 \ \ 1 a� � OVERHEAD /, 0 OO �� Q l ` - _ - aao____ - __-- SLIPPQRT 1-m CONTOUR LION E74 _ -� \ --__ / / \° "i AREA ODD = ti UTILITY I a� 0 o ♦ / LINES ✓ p - - t �� \ \ 1.89 AC _ - - - PROPOSED 9 ITS OF ��� -SOIL 3 �', �� / \ ♦ DRAINAGE DIVIDE •� �� I /O i//,, Z / / _ _ - - - - - DISTURBANCE - 16. /ACRES ��. ,o$ TYPE 6c J \ ♦ ♦ - 11 / - \ (TYP.) \\°♦+ - SOILTYPE _ _ _ / // / I .Q / - - 9z'>-- - - -- / / / / i // / _ A�-----w� J A A \ v AA•. - 1 1 I 8� , / ��// / IF / \ / / v _ j - - - - / l i // / / / v -°_ BOUNDARY (TYP.) A \ V �- I f �v / / /v�� A v � � V I � \ 1 � solLrvPEase / / POSED LIMITS OF i - - _ - / SoO'� _ PROPOSED \ I - - _ �- // v v� _ - - / r / / �// -��/ DISTURBANCE ACRES 1 -� -- VDH � A ) i \ I I I � _ -- _ � l / i / v � � \DISTURBAN 93 I I �i �1 � � l - v _ - L �tw AREA TODD= MONUMENTI � -� � ' PROPOSED FENCE i � \ sS FOUND \ \ \ - \ --- / // i / /// \ \ - --- aoPEs \ % SOIL TYPE t o.62AC v v v / I % T.M.69-19D� �, - - // % / _ AROUND SEDIMENT // // - /, / /i. o REVISED / / __- // � -\ ,` \\ SOILTYPE/ ,I � X / / TRAP STOCKTON CREEK LLC � / / _ I �,r `\ \ , I , I / 4.569CRES / I �!**: \ vv \ 1 '12 / VDH \ \ J I D.B.5504 PG.614 / // / / I • a \ ss MONUMENT FOUNDTS MENT NOTE: SILT FENCE, SAFETY - / / /: DD I}�_ I !j '�\ V V A w/WIRE FENCE, AND TREE PROTECTION \ - NOTE: CONTRACTOR TO J I 1 * \ \ \` \ - SUPPORT SOILrYW4D SHALL BE INSTALLED AT LIMITS \ \ \ \ ENSURE POSTIVE DRAINAGE *o \ \ \ \soi \rvP ayc PROPOSED - / O --� \ \ � FENCE \ - - - F DISTURBANCE THSE AREA v R9O � \ \ � _ '-'ALONG DIVERS�N DIKE / / * C , ** � : * *, \ \ \ � _AROUND SEDIMENT VDH _ - - / / OFFSET FOR GRAPHICAL \ - 7. * x ; ; *\ : * - � � PLEASE SEE DETAIL SHEET 8' / \ \ BASIN MONUMENT,'/ PURPOSES. DRAINAGE DIVIDES_ - - �* - FOR SEDIMENT %BA-SIN /iSII*1II DESIGN DETAILS ° s OTYPEOF DOR FOUND ARE MEASURED AT THE LIMITS n6' 'BOUNDARY ( TY p ),_ o CRITICAL SLOPES CRj ICALSLOPEs144 FOOT LONG AND 55IB DIVERSION DIKE / SIB 4 FOOT HIGH BAFFLES � II \\\ \ SOILTYPE 1C I%` TI .M.69-50 VDH FREEMAN, '\\ � \ \ \ MONUMENT Lic. No. 0357911'a 1/4/23�� &InnrAT. EEC'\ f Z M 0 U /A V� ce LU Z o ce < O n. w m � wU Q o Z N Z 0 o Ln LU > w m LJ w" O O N w N ZW J J > U) in ZW W U) JLU 0 O O N -- - - -VDH - _ _ 161 L i 6, W2 � IS__ _ \ FOUND 47.729 ACRES / --_� MONUMENT-- - - T M.69-19A7 - -_ T , AONUMENT- -, STiq r _ = - �6 �\ - \ \ GRAPHIC FOU1�D _ _ _ _ -- __ -U -JUST, JOSEPH SCOTT & - - _-_- -FOUND - E RD _ _ = - _ - - __ --SLOPES _ SCALE %�� _ - P R0 - - -- - VDHI eo ° no so ,eo 320 ARS 4DE ME NT _ W ,, OP O M^' FD 8' WIDEFOUND - - f '�--- ,; ,� � - - - - - - - - \ - 26�-TH211 \ ,\� VDH -- ' --------� �T (t T ) MONUMENT�_ FOUND--_=--- 1 inch �E 80 ft. - - - _ VDH U w rl z LU 1--1 VU LU Q Q � z Qz � Q J d U) O z z O O Uz \H W 0LU m V) U Q w z LU O U p z w 0 U O V) JOB NO. 222207 y SCALE 1 rr=80r SHEET NO. 5 EROSION CONTROL VIRGINIA EROSION& SEDIMENTCONTROL / - - - Sediment Trap design � A # HANDBOOK SPECIFICATION NUMBER i l - -- - -_ _ it Lf DETAIL /' drainage area (acres) (< 3 ac) ,.,, SEDIMENT r TRAP P W I D E �,TH OF SAF SAFETYFENCE 3.01 _ T.M.69-6L \ V� / � \ / trap volumes: a+iaxu aresr ar sroxe weix aweRe SCALE: 1. = ZD - \ \ \ elevation (ft) area (sf) wlume(cf) vdume(cy) GROUND CE CONSTRUCT/ON ENTRANCE 3,oz / LOT 6 V ' \\ /\ T.M.69-6C - - s26 77a o o.o __� / - a 930 1605 2,329 86.3 DRY - e r tte x / /' STUART TAYLOR SMACK % GIBSON, EVERETT E JR TO SCOTT R. LINSZ O / 932 2700 6,587 244.0 I CRS CRS CONSTRUCTION ROAD STABILIZATION o / / ,D.B.5246-521 FIELDS 0 0 0 0.0 O 1--I 3 3 / L� Lie. No. 035791 D.B.34155�704,707 PLAT / -=yv\ \ 1.07 ACRES -__ o 0 0 0.o wersrnaneP - 9 - SF # SILTFENCE 3.05 / / /----� ------ xl J DAM ► 0 1 A a fuavreo) �r�r[R amx waa 1j4/23 �tj4 -- y'- '--.-$`� wet storage: �`� _ � a� .xe Pure 3,13-� cnmr .�aa�aa^ cussxxww _ - _wet storage required c 67"DA 74.4 1 lP STORM DRAIN INLETPROTECTION 3.07 '' / - / / j /// - " A V - - - ,� ,� ,� r a9 e9 (Y) ( ) i / v bottom of stone weir (ft) 929.72 >� _ , i / �' ,1 - •-- �P'�R-� ,� ' w_ wet storage protided at this elegy tion (cy) 74.4 ClP CUL VERTINLETPROTECTION 08 -slope of wet stooge sides 3:1 3 .....u._...\"� weir 6.7 i _\,* �C�HC�( XX�H(JiC�HC3C�CCSC-3C�Hbottom of C-X-X�C�C-X�C�CiC-X�( / � / \ \\ IS \ \ \ ex/�'..... dry storage required c 67"DA 74A bottom of dimenrap `sionsion `ft) 21'X40' 928 X DD - -�- TEMPORARYDIVERSION DIKE 3.09 e e Y 9 e9 (Y) ( ) P av - - -- - -- - / / crest of stone weir 931.0 top of dam elewtion (ft) 932 -/ // T.M.6919G IIII���g11 -- //� dry stooge protided at this elevtion (cy) 60.7 top width of dam (ft) 6' �f'� �. TEMPORARYROWDIVERSION 3.11 \ / / / -REVISED LOT, slope of dry storage sides 3:1 top trap dimensions 38M(Y 2 •� \ �� cRIncAL v ���� / 3 �i STOCIkTON CREEK LLLj A v v aoREs = V � - y_ = '�� -\� � �. �� ST SEDIMENT TRAP 3.13 / 2.63 ACRES \ \ _�� ,�.` � 2.80 ACRES--�---- \ - ♦ --- v f O - --- - v _ / B.5504, PG.614 . _ v V ���. 3U/ \ v A v SB SED/MENTBASIN 3.14 / - v SO (�T� ♦ - OP OUTLET PROTECTION 28 - - - _� v A� \ ♦ i�-♦♦ \a V e _ P �AA ♦ O / ♦ - s- v v v v U 3 u \ W o F� 8 a RR RIPRAP 3.Ig \X� /' / / -� \ \\ \ ,, ` ♦ I �.'% / - - \� LL�. \ 'm 2 z } u LU CD ROCK CHECK DAM 3.20 - i / / / / // / V A A � � � �� - - I ♦ ' \ v - �� Fa � V �% A m \ A \ \ '�1U TS TS TEMPORARYSEEDING 3.31 ,' - / �- \ V A A V V A / �w vQ X V JV JI z - - �( (� PS PS PERMANENT SEEDING 3.3z ; v ' - �� ��♦ A AR EA TO - � r `�, 9 3 6 X m vi - _ FLOW ARROW SEDIMENT BASIN _- 9zz - - - - z4 - - / ) > m MU MU MULCHING 335 j / // - v v ADDITIONAL LOD FOR DRAINFIELD ��� A \ 1=7-44 ACRES __- ------ - - - r � Lni " INSTALLATION ONLY. SURROUND DRAINFIELD OTP M TREE PROTECTION 3.38 / - - \ \ LOCATION WITH SILT FENCE (TYP.) \� \ X - - 918-/ X o F \ \ - F- k _ x I ARPROXIMAT,- - /. A ----- -- LOCATION` STREAM (B M ALA ADDITIONAL =z.SiACRES - � +,, � � TOT DDI NALLOD \ \ -" DC OC DUST CONTROL 339 � _. _ � �\ \\ _ - \\ -. \ _ DC BM SOIL STABILIZATION BLANKET 6 \ / / '< ERHEAL \ O \ LL U LITY 7 - - - - v v , NOTE: CONTRACTOR TO ♦� v \ v A ENSURE POSTIVE DRAINAGE ♦` \ \ I I \ CONTRACTOR DOUBLETWALLED FUELING TANK r' '/% - ALONG DIVERSION DIKE \.. \ \ \ VDOT CLASS DI , x� i ` \ \ \ \. �� VDH / \ \ \ / \ - 1 A A ( DUMPSTER W/ COVER, / - DITCH TO / ANDPORTA-POTTIES - AEA O _ 6.TOPOF / +� A v / F-01J N D AVA\ V A v + \ \\\ 9�s STORM STR io' 1 I CO ; 'SEDIMENT 'TOP OP CRI \� \ V Aw/ WI E ► OL VAVA\ V v Av A I NCRETE WASH l s -' / \ \ \ \ \\\ \ \ - 4= DAM w/WIRE / �. �. SLok \`\ \ \ SUPPORT \ \\\\ \ I / / TRAP - P \ \ \ - I OUT REA - // `�,\\\ \\ \\\ \� .\ i w/trGHSIDEs \\ F A' 0.48ACRE5 SUPPORT �v .v��9 CQ A - \ �T v v v w N _ - o =zo . v R/W DIVERSION AND DIVERSION DIKE l / ii ' V �- 3 ♦♦. r�� V A Vv \ v \ v v p / TO SMALL SEDIMENT TRAPPING DEVICE ��� ��' w f v v / �' TP" PROPOSED LIMITS OFv �V / / v ATES; J� v .. FOR CONSTRUCTION ENTRANCE�� -4o'n ► \�� / ��`VDOTCLASSAI �; �\ \��, ��0 // �y\ +�+ Di DISTURBANCE=i6.93ACRE5 ' / \� ,148Y(� \ v� LINED RIOPEAL \ Vv. �+ �', A \I C v v v - �+ 1 + A ATOS DI N �� v % A A \ \ �' 6.7 ST t ° V DITCH TO �. A A V, f� ♦ RAP 3 -1.44 ACRES / \ A / M.69 6M � r 4 5�'" 1 \ STORM STIR v SAF' �" A M"GRASS LINEDDITCHa \ V A. 3++/�2 �� PE\/ISEDLOT7 w B �' �V ,v y�/ ST / v � .,�� A v E.C.ACKERMAN TRUST I � � "TO STORM STR>.8 .,.. AREA TO ° - \�. � � ��. V `90 /� , �� ' "P -� � a D i; _\ VA \ I \ � I I � � v � 0 D•B,4733-�3 / / p* ���<1 -� SEDIMENT TRAP iso� ♦�o�� PROPOSED FENCE o� �; x' » _ - o PS _ NOTE: CONTRACTOR EDRAINAGE / /� j - 1 V ? �� ��� D.B.4733 20 & 21 LAT ► ' I v - ` �� AROUND SEDIMENT DIVER DIKEv � s, i=LSoACRES �: 'vdloE / / A�� \. _ \� A �� �--I D.B.4456-4 /-- _ v00 � TRAP » * * ONG SIGN , t' .. �� i9N , BM / i i , ♦ m D.B.3530-234 P P - - SF iz'x7a'MIN CE �I wI�/IRE \ I - / / " \ \ o, v CV Z � OH '� v* I ��' v ngo`� v `. ♦ _ --/ SF ��II o� �� \ LLI NOTE: THIS CONSTRUC�10 � � I � s<o '� 4 , * \ SUPPORT \ \ � � VDOT CLASS AI LINED N / 1 r ��� A A \ +� w/WIRE / / -PROPOSED TEMPORARY s + DITCH TO STORMSTR8 J -6 T.M. ENTRANCE SHALL BE INSTALLED � `'^ » t` ' v » ;' A6 ow�oF CIP IP �3�F SUPPORT I \ v RATED, AND MAINTAINED BY % STOCKPILE SURROUNDE o v ♦ / P of � ! / GRAVES H 51 � Q �_ �I-_I % �� BY SILT FENCE 4 oPM� HOME CV THE CONTRACTOR. ALL- -- - / I � ♦ t ti � �D ` o 1 1�; \ �B ! �? Z t-I i W C IN ..RACK ♦ o 0 ► i gti l �� / 0 26.988 ACRE � CONST AREA ISOHALL UTILIZE IZE , `� \� ►A ss -� .� v / - W W o► A - 3 / o �v �o ti �,�j (n J p o CONSTRUCTION ENTRANCE. / � I � // � GRASS LINED DITCH �� � �AREATO �., ♦ ► � � S � �--V'�� � » �bn-�.9ync � �� I I � I / � o / I A,� � � TO STORM STIR �� v SEDIMENTTRAP -- - �- - - ////�//"/ 1 XX � TS-z.gzACRES `� / t - illliII�III'�I,IIi 0 / �v�AA1�/ Z _ ♦ \, / w%WIRE 0 �, \ \ \\\\ z d 1 +\ �.♦\\ DRAINAGE DIVIDE �3 z ► _ _ / '° \ \ 'SUPPORT i a\ �\ \ \ \ \ T.M.69 6G + 4 - a°HwHwEIR _ Q t / f ♦♦♦� y' (TYP.) 4 CDw/a.33'HIGHSIDES/ 'VDOT CLASS I LINED W LOT 1 / f ���♦.�� s4 o ° - ��� -moo_-- DITCH TO STORM STIR / = 3 V V vv w z J J FRANK DONLEY & / � �� r � � 9 9 :tea 7 � o , �, A � � v V v J 0 Z CARLA DONLEY I l ! �f\� xY-�I i� - MU o�� S, e, B Ao , - - _ _ c��♦ : / ° �\ / D.B.3380-82 / ► PS AREA TO ��av CRITICAL 0\0� \ l l' A X i i / �� �� ♦ NOTE: CONTRA T SLOPES o o / W 85/& 6 T '' /� - _ ♦ .♦- L EDIMENiBASIN / DD I I / .♦ ENSURE POSTIVE DRAINAGE 0- �,LU /J / / ; A. V ♦♦. 9 ��C i >� / m ♦♦♦� I = 44 ACRES / / ♦♦.♦ ALONG DIVERSI N DIKE o - A� // ( _ /� / �� / / / / / / �� v v \ v - - IS '--940 - ♦♦.��r� i �_0VDOT CLASS AI LINED DITCH i DC » ' »". �►. �,W�o�F� �J PS 7 IP / A `� ♦ 0 � \ �1 / L9 0 �c D - - -♦♦ �� TO STORM STR M.\\/WIRE ' \ Dn=i.zoAcI 0 V 1 I- /♦♦♦rfi ► �mmoP SUPPORT ► A IS OTE. CONTRACTOR TO SF �� 10 OR ► e IP e p ♦ Z ENSURE POSTIVE DRAINAGE - - - - '� / - _ ► �\ \ \► �aOLE - - w/WIRE / / \ �� vooranssllsroNE ► ♦� x OVERHEAD / z O ALONG DIVERSION DIKE - �- ti �� / / / 3o',W UP T0874 ► v SUPPORT / _ r \ / CONTOUR LINE \ ' /Ke ' / /\ � - - ---- ----_ - -- -- - ► m - L= � S \ I UTILITY I o o 0 IS - -- - 0 - PROPOSED LIMITS OF 9�z _1 � \ VDOT CLAISS I LINED e` DRAIN LINES V !/ ` ° /%' // U III I- � I o 7, i / _ AGE l / L _ . x _ DIVIDE Z t (� DISTURBANCE = 26.93 ACRES _ p� _ v - *'� , ^ , / DITCH TO STORM STIR 6�•. \� (TYP.) W � �� / j / Y t--t -= _-- 1 / / LJ ////I / I I ( 1 r r ��\\\/ --_\ "/// //// // / / \\\\ _--910- / \►� 1 C' ,/ II 1\i1\I / ' /' v90p' PROPOSED LIMITS OF V _ /- DISTm �� \ V v URBANCE=16.93ACRES 3 I V / I i // A v C-X- w �/ ✓% �� i _ l/l/ l/i // vv vv l/ / MONUMENT � _----/ / \ \ ��-_ / - �- PROPOSED FENCE cRmcAL \ � � �, e / �� �� ?eo � ' ,' Ul (f� r / FOUND T.N .69 19� / / / v A OUNDSEDIMENT SLOPES / �'V A Z \ / X / /i /// / I v �_' __ A ro',I '��\ � / Y W � Q REVISED LOT 3v i _ � / I v TRAP � � �� ,�' / \ � � �- - / � ' STOCK CREEK L - - / / / \ k% , - - ` -ss / / LU V A v VDH 4.56ACRE5 �/� ���� / `�� /'/MONUNENT (� LU 0 v v D.B.5504 PG 634 - ► \ FOUND � NOTE: SILT FENCE SAFETY �x ► / w/ WIRE // i - i - - ► �c _ / / - - - -- SUPPORT FENCE AND TREE PROTECTION v I s V A O _ � NOTE: CONTRACT R TO a* *' - ) \ \ ADDITIONAL LOD FOR DRAINFIELD \ / \ p[ \ \ - SHALL BE INSTALLED AT LIMITS \ INSTALLATION ONLY. SURROUND DRAINFIELD - \ \ '--_8 ENSURE POSTIVE DRAINAGE M .* *, .* » \ f PROPOSED FENCE //// --- OF DISTURBANCE. THSE ARE \ \ \ 90-- r `', »» ' ''\ \ ADDITIONAL LOD FOR DRAINFIELD / / / \\\ - - -' W - -' f AROUND SEDIMENT / \ LOCATION WITH SILT FENCE TYP. \ \ ALONG DIVERSION DIKE =: * . » , / r/ \ �/ ( ) - - OFFSET FOR GRAPHICAL \ \ - - -' : * '*", �( BASIN INSTALLATION ONLY. SURROUND DRAINFIELD (\ / / / \\ J Q O VDH / j _ - - -- i // TOTAL ADDITIONAL LOD = z. i ACRES/ - - \ PLEASE SEE DETAIL SHEET 8' MONUMENT' ! / / - 5, -PURPOSES. DRAINAGE DIVIDES \ \ - - "*' * z LOCATION WITH SILT FENCE (TYP.) FOUND / - / - --- ARE ME \\ J FORS ADDITIONAL j / �/ \ -�- AOFDIDSTURBANCEOR \ ` EDIMSIGNDETAIl-S I 6 s,` + TOTALADDITI z.SiACRES �l\ \\ \ -- - - \. - - IS LS Jf � / / II- K\ - \ CRITIC /�)I \\ I ` \\ nI O - / DESIGN D, DIVE R N DI _ "aeo' \) o , OPESL � _ � ' - v � v v - ----- / / / /,� / / � ss, *1/ 144 FOOT LONG AND \ ► J I+ HIGH BAFFLES V) / ��_�_ �� � V MV6 11V A / - - - --�\ _ - -- - ---- - `�-j-�'esz= VDH FREEM HU I / /VDOTCLASSAISTONE 4* _ -` \' NA R H OR \ I \ - - - -- - - -- - - - - - \\` - P 6aso, \ _ MONUMENT \ �w' -=i6',Wi=6',wz= s' FOUND w - --- A RT DIHVDH � � � L S I * '�� 1 7J0 9 ACRES - - T.M.6919A7------- -MONUMENT-- _ ! - d . -- -- - -- - STA -- - - ---- \ / i cos ruo. - -_ - - - \ JUST, - - - - - MONUMENT- TE - - - - _ - - - , _ - \11 \ GRAPHIC SCALE 4 -i -FOUND_ __ _ - - / - JUS , JOSFPH S�OTT 8�� - fOU79D `� -G T R�V�� \ -\�_ \ CRITICAL - = i, -_ - _ -- \ -- \ \ 222207 - _ J J� - - - \ SLOPES _ VpH \ 0 40 so 160 320 --- / __ AlACREST ��yA RS i - //�ALE �- \ r------- W p - TH��, -�� �I - - 8'WIDETOPOFDAM MONUOU MEND - \\ - �- _ OO ��\ 2 \\ \\ x �- \\�� \\ ( IN FEET ) SHEET NO. j 1 inch = 80 ft. r NT EROSION CONTROL HANDBIOOKSPEC/FICA� ONENUMBERTROL - _ / % / / / I I I I III I111\ 1\\ \\ \\ - - _ - - - - / / \ \ ` P PS - SA SAFETYFENCE 3.02 T 1 V I \\ VA VA V A A v e / M6 0g66� I A I 1 I 1\ VA V� \ v V A - ---- v �" CE CONSTRUCTION ENTRANCE 3.02 i / 11 I 1 \ VA V �� V A T.M69-6C - - - - / / STUARTTAY OR'SMACK V v vv v v GIBSON EVERETT E JR - _ V v / cRIncAL A SCOTT�R. CCCrLLINS% / / / D.B.52, 6-521 // A FIELDS / / / - SLOPES CRS CRS CONSTRUCTION ROAD STABILIZATION 3.03 / / �// / l V�A�\ vvv�\vAvvv��� / / \ A �/ U Lic. No. 035791 D.&3415/7704 7107 PLLAT 'v v // t v v v�vv v 1.07 ACRES / v v A PS SILT FENCE 3.og / / / I %% /� \\\\\ \ �\ \ \ \ - \ r / - - - - - \ -- - / \ po 1/4/23 tv ✓ / // / / / / /// ���� vV$. V A�-�_ -- - ° %T 00�IONAL E� lP STORM DRAIN INLET PROTECTION 3.07 / / / / / / //L / A \ A r eit \ e r ClP CULVERTINLETPROTECTION 3.08 \ - / / e - - - DD TEMPORARYDIVERSIONbIKE 3, og � � ` - - - f / \ p �_ - - - --- / A V A - a �/-• / - - - vim- -/ / /% T.M.6919G A A V� v�� - ° e / r/ �. / / / // / l I / j f-PS W� TEMPORARYROWDIVERSION n V / / / l \ AV A�.. ° /� ���`- �"v " \,� ��'+ _ M 69 5 3. / / / f/ -REVISED LOT 6' \ p / / TT / / / 1 V / V V� CRITICAL 9i��ffi� \ r �,--- ' 'K TOCI�TON CEK LLCM �. o �/ MCOLANAJ IA :I \ \ - - - - / l /; 2.63 ACRES \ \ \ o \�� _ r\ �..,\ FIELDS OP i ST SEDIMENT TRAP 3.a3 \\ - - - - - - - / / / , ._______-_ \ \ _ \ - �\ ♦ST . AGR- v _ - / D B 5504 PG.614- `♦ �� 2 80 \ - �\ \ ♦♦♦ / I SBLE= SEDIMENT BASIN 3-s4 \ \ \ �� p04 CFO - - / 6 ° z OP OUTLET PROTECTION 3.18 _ _- -- _ / \ \\ - / / \- - `-° O `O �W�` LL 4 \ -' /tee° / w,. VDOTCLASSAI §T NE-e� 6 r -- OV v♦ ♦♦`/ // V �� \ - . ...�.�•. ../ �� f ,VDOT CLASS AlSTONE. OP ��' L= z', Wa=6', W�=�5� ��'w \\- - / a-�` YJ _ - - RR RIPRAP 3.19 - - - - / / - A A A� A V - / ♦�♦ i l ��� ti O� O O �. �- ..� /- - L i6', W1=6', Wz=i8' - - IS z Q 0-01 e CD 0 ROCK CHECK DAM 3.20 TS � / •-_ / / /// /�/ / � A \ V \A \ A\ \ _ _ ♦♦ `♦,- -- -- tiODRAINAGE AREA TO�� SEDIMENT BASIN 1=15.8ACRES --Ln TEMPORARYSEEDING 3O�� = - -- - - - MOO ,w J o z PS PS PERMANENT SEEDING 3.32 \\ ,. // - - ' �/�\ \\ \ \ \ - - - ` - - - --- -- - - L i 6 i ,J� ~ U, MU MU MULCHING 3.35 \ ` ''� - - \\` ` \ ADDITIONALLODFORDRAINFIELD,-�`, 9ZZ _-- _ P_S z4 ; / / /gl j91 �� �� 1�\�\ \ EROSION AND SEDIMENT CONTROL PLAN PHASE IIIA Lu M INSTALLATION ONLY. SURROUND DRAINFIELD `� --- - -• ° -- r / �/ w ° I, \ �\ \\' \ I SCALE: i" = 80' W m v AA //r( _ _ _ _ _ _ 7P� TREE PROTECTION 3.3B �/ - _ - _ ( / �� ;*0 O'C�AT \ \ \ LOCATION WITH SILT FENCE TYP.) p APPROXIMATE � z TOTAL ADDITIONAL D-2.51ACRE5 -- - - e / DC DC DUSTCONTROL \ l - - - \\ \ \ A - - - ; - - - - _ - ' N STREAM I L LO 3.39 \ \ \ - - Vv A V i ♦ BM + + + + + 50/L STABILIZATION BLANKET 3.36 \\ \ V A ' V //\� - - �� \ ` \ A �A •k-x _ �` - - - e ERH EAI ADDITIONAL LOD FOR DRAINFIELD`'- L INSTALLATION ONLY. SURROUND DRAINFIELD L `> ° o\ ,-I / /- � OvvTWITH SILT FENCE CONTRACTOR STAGING AREA WITH DOUBLE-WALLED FUELING TANK, TOTALADDI10NALLODz. i-ACRES \�v\ ° # \ VDHo AMONUMENTDUMPSTER W/ COVERo A �VA� I I I v A / ♦ ♦ / ��♦����� `.\ POLE �/'o FOUND PORTA-POTTIES SF ',wIWI E `CONCRETE WASH CRITICAL A \ w/WIRE SLOPES PS REA 6"HIGHWEO 1 HPPORT Dw/1' HIGH SIDES ° JR/W DIVERSION AND DIVERSION DIKE V OvRp PROPOSEDLIMITS OF T, /TO SMALL SEDIMENT TRAPPING DEVICE 900 DISTURBANCE 16.93 ACRESKERRYD oo 2.148 ACRESFOR CONSTRUCTION ENTRANCE cRIncALA- - - \ / //// / •/ i i ` �\ �\ \ \ \ SLOPES T.M.69 6M \ v v \ d Q REVISED LOT 7 w PS \ v E.C.ACKERMAN TRUST I - __ � IP `. -�=-�- � v ov I v v _ _ ' o � I � PS � � °d ,'•� ��, D.6.4733-23 / IP PS v - ' -- - NY / D.B.4733-20-& 21 FLAT PS D.B.4455-4 - v - - _ , - - - r� D B 353 - - 0-23T �� / ° ° /'� �� L� \ iz'x O' MIN. I CE r s by\� �6'/HIGH WEIR / 88 \\ \ \ ♦, _ - i / SF �� o ] CD w �'HIGHSIDEs w WIR� / / � \ SUPPORT. \ �s \\ � / NOTE: THIS CONSTRUCTION / / 1 \\ I A a / a� \ / w WIRE \; it °o ENTRANCE SHALL BE INSTALLED �� �`- - - - ' / ( � � � ' � // � CIP DA-4.° nc I - - - � - ! SUPPORT ) � � � oW � �� X• 9�}� . v �T.M.69-51 OPERATED AND MAINTAINED BY / V P °l - / ° , v O V / c R 4,• / - / A, .�6 F yp� GRAVES 26988 ACRE THE CONTRACTOR. ALL . < V A �, o A \ v CONSTRUCTION NTRAFFIC RL FF IN THIS THISWASH RACK \\\ \\ 3m 4_ A a. PO \\ o i� �a /O i 9 9 a AREA CONSTRUCTION ENTRANCE. i j I / V �i' - S _ o 0 6v c - SF � DRAINAG�EAREATO O w%WIRE SEDIMENT BASIN 1=15.8ACRES �. ' I, 4r 9 � a S aas ♦.`..♦- -, . -•3sueH--- ' -----,SUPPORT '1 Ii T.M69-6G LOT C�D-w /i3HIGH SIDES' ; 9a6 FRANK D6NLLEEY PS o ONYCARLA LL O 3" ° r \• �LL \� �" � \v \ - / / D.B.3380-82, : I /j/� V -_ / �' ; �, �az `♦� '.,, P5 i ' A/ ro i _ CRITICAL _p - SLOPES & 86 PLAT /0 - PS It Iq IS 940--- / / - - `.� A ♦.; IP / i DA=S 57AC ' � 1 0A-)4� �� �- ---- ----- - i / 9z0-__ •�`�I��_� V A w/WIRE _ 5 )' A - - - - - , _ SF / / / �/ PS UPPORT pp as PS `�' A POLE \ �_� V �- ------ - �// / \ i i fro �I \ __------- -- / j-- --- - - - _ = - w/WIRE - - \ v000, W=UPITO874'E. \ OVERHEAD // 6 ---- - - - CONTOUR LINE UTILITY / o �� v SUPPORT / / \ / O�� `off --------F--=1 Is_ 93° ' 9?z % \ \\ \ saE _ \. LINES p� i / Q PROPOSED LIMITS O� cIP _--��- - -----DISTURBANCE i6. ACRES / /� OBPS ��� / �- / - - - I \ f IF � 900PROPOSED LIMITS OF \ _ % - / DISTURBANCE =16.93 ACRES I MATE III TH CRITICAL S ET ♦ / / VDH I I I / / \ \ l�/ //// \ \ \ \\ ` \__ • • • • • i� -__� / / ♦ \ I '. //` �- SLOPES FOUND MONUMENT / T.M,69-19D- / / REVISED LOT3� / / / / - x-x / /� / // / / _ v --- / �� L V PS�� �/ / 1 v V / / /� / \ STOCKTONCkEEKLLG� �/ / \ / \ VDH D.B. 504,PG614 �°4.56 ACRES '. \ / SF =' P LE,°( IS / MOI\IUN1ENT NOTE: SILT FENCE, SAFETY /� /.' i m/ A w/WIRE FOUND FENCE AND TREE PROTECTION \ ADDITIONAL LOD FOR DRAINFIELD "c' - J / /i //// i \ / / - SUPPORT _ __ _ -SHALL BE INSTALLED AT LIMITS \ % / / / 'I / \ / / PROPOSED FENCE / -- INSTALLATION ONLY. SURROUND DRAINFIELD B 0 __ /M; \ _ OF DISTURBANCE. THSE ARE \ \ 9 _ / / / / / r / / ADDITIONAL LOD FOR DRAINFIELD / \ - / LOCATION WITH SILT FENCE (TYP.) GRAPHICAL- --- - = // - / r ; . / / AROUND SEDIMENT _ INSTALLATION ONLY. SURROUND DRAINFIELD VDH % _ -- / OFFSET FOR \ _ PLEASE SEE DETAIL SHEET 8' /\ ! / AL ADDITIONAL LOD = z.51 ACRES' MONUMENT /% �' <_,, - /� TOT _PURPOSES.DRAINAGE DIVIDES_ -- - ; r`,.;' s + \ BASIN LOCATION WITH SILT FENCE (TYP.) ` - / FOR SEDIMENT BASIN 1'S \ \ FOUND' - // // ARE MEASUREDATTHELIMITS DESIGN DETAILS s \ \ \ ! TOTAL ADDITIONALLOD=z.51ACRES \ - - OF DISTURBANCE OR - - _ �CRI - � DIVERSION DIKE. � \ ° --_ _ \ � � \ / /. E � IS \ - I/ / CA LOP SES -ERYTfCAL3LOPE57-- -_ -- _ -- 1 FOOT LONG AND i - / O H BAFFLES \ / ' TCLASSA AO E8� \ O F - / / / / - - v \ T. M.69-50 �\ v SB i / \=��_ \\ - 'a'° / / / ♦ __ 6 ` /% / FREEMAN ARTHUR H OR \\ 0 0° VDOT CLASS AI STONE �O - 1 _-_ - MONUMENT � \ �_ __ _ v L=ie,Wi=6',Wz=m8' - --- IS - -. - ND JOANN F _ _ - - - - - - - - - -- - r -- FOUND -- - - WT -� -T -19A7 - \ _ - _ - i 47.729 J .. - \ 1LiSr 1O5EPH - - - - - _ TE _ __ - - - GRAPHIC SCALE - - - - _ - - M.69 SCOTT lsll-QNUMEAIT �_ R Ii - _ `� �\ ACRES \ 1 I _ fOU _ -.. 'FOCJh[iZ - - - - - - - - _ R OUT - - _ -CxreL - ' - - - - - GASEY-R-lUST_ - - , \ RS 1 3rOrEs- - - - - \ _ - - - � � - - - - -- - ,. ao o ao eo Ieo azo 2 - - - - _ _ - _ OVA Wro - - - - fVIONUMEN� - \\ \ R%W 8' WIDE TOP OF DAM \ /� -- -''�- \--_- _ __.---- - --- - ------ \ \ \ 2 �\ � IVDH ------ - _\\ `-- -- \ IN FEET ACRES _ � v �}NUNI - /FOUND \ \ \ \ \ 1 inch = 80 ft. OU �NT � / -� `v - VDH LJ Zw J J U) in H Zw U) O 0C:) N u rl Lu G z w G V Q = z Z J u) I L I F 0 U F- Lu Lu 0 0 V � Q Q W z ' W 0C II I O U O0 O LU O U) 0 a w IM JOB NO. 222207 SCALE 1 "=80' SHEET NO. 7 X IVI X X X X_ X X N\ X X f Sediment Basin Design #1 X !♦ \ +`+\+ \ \LTH 0 T / t - X X \ \ MIN. r WI HOOT SPILLWAY X I ♦ +�+ V A �� E X♦ X X X X �X X v drainage area (acres) 15.8 2 WITHOUT CREST OFEMEERGENC X ♦♦� `+� v v F X ♦♦ X X X X X \ PROPOSED FENCE f basin volumes: (using 2' contour intervals) DESIGN HIGH WATER -ABM ♦ x `+ \ O I k X X AROUND SEDIMENT BASIN f O (� (25- R. STORM ELEV.) X X X\ \ X X X 3-44 FOOT LONG AND i X X X elevation ft contour areas volume(cy)X \ i �►" FOOT HIGH BAFFLES X 860.00 5945.0 0 GS' / X ♦j X \SCOTT R. LINSZ C X X X X 4 X X X \ X I % X ♦ X X X X = X X X X X \ X 862.00 8131.0 519 RISER CREST X♦ Xf 864.00 10599.0 1211 DRY STORAGE Nc X -A/ / T ■.■ ■� ....� 'x ��0 1/4/23`4 x ♦ X X X X xx� X 866.00 13348.0 2096 WET I 1 ♦ X X • •ro sRAGE f 'SIONAL Z I o � ♦ 868 f 868.00 16330.0 3193 is I 6' CLASS I RIPRAP x X , X v o.00 o.o / S p SEgMENT CLEANDUT PRINT % EMERGENCY - k / 866 (• ME'T STOPAOE REDUCED I X 0.00 0.0 0 TO 34 C.V. ACRE) P SPILLWAY W/ x/ ♦ / X x , r FILTER FABRIC x/ / 864 X X�C� X' �\ UNDERLAYMENT ♦ / X / �K'x�C-Xyr_j�X-X x X ♦' / \ / (DEPTH=z') x� X X � / 862 \ X X wet storage: 4a SIDE SLOPES & • / X wet storage required (cy) (67*DA) 1059 design high water 866.96 CREST ELEV.= 867.04 / 86o X X X dewatering orifice elevation (ft) 863.56 top of dam (ft) 868.00 0) r4 X X ti / / x X wet storage provided at this elevation (cy) 1059 top width of dam (ft) 8.0 X X 4 Q X available volume before cleanout (cy) (34*DA) 537 bottom of basin (ft) 860.0 7t X X X cleanout elevation (ft) 862.03 approx. bottom dimensions: 116x55" X tc i X f /} ♦ / X distance from cleanout to orifice (ft) (> 1') 1.53 upstream face slope: 3:1 X X downstream face slope: 3:1 r*y X eb M / f\ dry storage: Oi o \ \ X X\ dry storage required (cy) (67*DA) 1059 baffles: YES X / f ,A LL, / / \ X X principle spillway crest (ft) 866.04 length of flow, L (ft) 114 \ dry storage provided at this elevation (cy) 1059 effective width, We (ft) 117 * X X Z o w X X\ diameter of dewatering orifice (in) 8.0 L / We (baffles required if < 2) LO X �� X x O a m X \ X \ X V diameter of flexible tubing (in) (orifice+2") 10.0 X XI /{! a collars: YES V H w o SBi/ X \ X runoff. depth of water at spillway crest (ft) 6.04 X \ X ♦ _ o z / X C (use 0.45 for bare earth) 0.45 slope of upstream face (Z1) 3 X ,�+i O o m tc (min) 132 slope of barrel (Sb) 1.33% X X X Xv v v A ♦♦ +i+� u� II X 12yr 3.6 Q 2yr 25.3 length of barrel in saturated zone (Ls) 44.66 X , +X+� > w GO X V ♦� X 1 X 125yr 5.3 Q 25yr 41.1 number collars required 2 Ln X ♦ X dimension of permanent collars 4.2x4.2' T X � \ X x v X \X X ♦ i 1 x X .......�♦ X I X principle spillway: X X X \X \ x ♦♦ \ O P VDOT CLASS Al STONE 86$ um X available head (ft) 1.00 emergency spillway: YES nuX X ♦ v T co= 68 X X XI diameter riser (in) 36 required capacity (Q25-Qp) (cfs) 4.1 �, X X ♦♦ X L= 2 W1=6 W 2=1 X spillway capacity, Qp (cis) 37.0 bottom width (ft) 6 X diameter trash rack in 54 sloe of exit channel % 1 o°/G �I, v ♦ EDI M ENT TRAP #1 DETAIL x I 3 , IV" 5 966 � X \�8' WIDE TOP X ( ) p ( ) ♦ ♦♦ X r Xlot /♦♦ X 86/. X X barrel length (ft) 74.94 minimun length of exit channel (ft) 32 ����� ♦♦ SCALE: 1" = 20' 't X �� X � X OF DAM = 868.00 ♦,. ' X ri head on barrel through embankment (ft) 8.04 crest of spillway (ft) 867.04 �I, ♦♦ f x I�i.�.....a.Nn...11201�1ISO X X 862 X X diameter of barrel (in) 24 �I \ �T Sediment Trap design #1 I X X X X \ X X X X X X X X X X X X H60 X 'A �\ NOTE: PLEASE SEE SHEET 1i FOR OUTLET PROTECTION drainage area (acres)(<3ac) 2.00 �'� X TC 8 \ X trap volumes: CREST OF STORE WEIR X I X r V '/PPoI9lE x-x-x5 x�-� Fa(-x- x-x-x-x-x-x-x-x-x-x DIMENSION CHART FOR SEDIMENT BASIN #� (DIMENSIONS elevation(ft) area(so wlume(cf) wlume(cy) _ 36" DIAMETER HDPERISER w/54"DIAMETER TRASH RACK. � ARE THE SAME AS DETENTION BASIN OUTLET PROTECTION) an. 896 1339 0 0.0 0 M RISER CREST=866.04.RISER TO INCLUDE A 8" DEWATERING \ 898 1954 3,274 121.2 DRY STORAGE F NV ELEV.=863-56). RIDER TO BE 900 2695 \ K\ X X X x x X x X X THICK 30" GALVANIZED COMPACTED STEEL BASE PLAAGGREGATE SIFT 6" INTO OVER A 6 6 X 84' THICK \ 902 3553 14,131 523.4 N o +�+ PERMANENT74.94 LF _X�K x X REINFORCED CONCRETE FOUNDATION. NOTE IF STEEL BASE IS USED SPECIAL 0 0 0 0.0 wE'CW%MD) A. 24" RCP BARREL 1'�X \ FILTER CLOTH ORIGINAL -INV IN=86o; INV OUT=859 - ATTENTION SHALL BE GIVEN SO THAT 95% COMPACTION IS ACHIEVED OVER \ 1 c NG THE PLATE. AT TIME OF CONVERSION TO DETENTION BASIN RISER TO BE - 3.33% SLOPE wet storage: CONVERTED TO PERMANENT RISER STRUCTURE s - - - -SEE PLATE 3.13-' COARSE AGGREGATE— CLASS c "'PRAP wet storage required (cy) (67*DA) 134.0 0 GRAPHIC SCALE bottom of stone weir (ft) 898.15 SEDIMENT BASIN#zDETAIL wet storage provided at this elevation(cy) 134.0 20 0 ,D 2D 4D 80 slope of wet storage sides 2:1 ti SCALE: 1 = 20 weir length (ft) (6xDA) 12.0 Z co NOTE: SEDIMENT BASIN WILL BE CONVERTED TO DETENTION BASIN IN PHASE IIIA dry storage: bottom of trap elevation (ft) 896 U') ( IN FEET) dry storage required (cy) (67*DA) 265.8 bottom trap dimensions: 37X41' O Z Z 1 inch = 20 ft. crest of stone weir 901.0 top of dam elevation (ft) 902 N w O ♦♦. \ \ dry storage provided at this elevation (cy) 265.8 top width of dam (ft) 6' slope of dry storage sides 2-1 top trap dimensions 58X66' 00 01 00 Q NOTE: PLEASE SEE SHEET 6 FOR SEDIMENT TRAP #4 DETAIL r 0 J '� ♦♦� vv vv v vv v �� vv AND CALCULATIONS o Z U � ♦♦♦1� � A \ v A A A\ N W J ♦� \ A A ♦♦j V A Sediment Trap design #2 ♦�� v v v I � i ` v +'�� �` � _ Q Q < \ ♦ \ \ \ X- drainage area (acres)(< 3ac) 2.92 SEDIMENT TRAP# I IOR 3 DETAIL / ZLLi \ \ ♦♦\ '� \ , )( x X-X X X trap volumes: CREST OF STONE WEIR SCALE: 1" = 20' \ \ �` J J ♦♦ \ \ \ X X x X X X elevation (ft) area (so wlume(cf) volume(cy) "�yNO \ C +� X x `0 J J ♦♦ \ �rX_X X X-X X X 894 756 0 0.0 X \� X 0 < ♦j♦ 896 1716 2,407 89.2 DRY STORAGE - v VARIABLE' x \VT3 � X C Q X ♦\ x 898 2964 7,031 260.4 x \ \ yV� X P w G w X v X X ♦1 900 4500 14,442 534.9 1L9 X \ -AX ♦♦♦ I 0 0 0 0.0 WET STORAGE 4• �J 1 \ ` X X X I-_> X X \ X\ x ♦ k (OCAWIED> FILTER CLOTH MC.Nu �\ x X X`\ X \--- --- --__-- -- �V O r z co wet storage: -ME PLATE 3.13-1 COARSE AGGRECAIE" CLASS I RPRAP \ \`� 1 ' O � X \ \ X X v V ♦♦ v � vv S wet storage required (cy) (67*DA) 195.6 0 ¢ � X X � v ` �Z \ X \ bottom of stone weir (ft) 897.24 x O \I X \ X X O X \ \ ♦ O wet storage provided at this elevation c 195.6 PROPOSED FENCE k �1 X X \ X U r-r X \ X V ♦ 0? 9 P (Y) AROUND SEDIMENT / �• X X X r \ \ slope of wet storage sides 3:1 / ♦ X X X \ -A �% �p � /� / Y Y I R weir length trap (6xDA) 17.5 TRAP x � X + X W � \ \\ D ��J � �� �/ �/ y dry storage: * bottom of trap elevation (ft) 894 � % 6 WIDE •♦X � � � � dry storage required (cy) (67 DA) 195.6 bottom trap dimensions: 149C54' / crest of stone weir 899.0 top of dam elevation (ft) 900 \ / X X U S U P P O dry storage provided at this elevation (cy) 1956.top width of dam (ft) 6' \ \ / T O D O \ �•�� "F\+�+\... y _ X _ _ \X QQ ' Ul U) H- ` X v slope of dry storage sides 3-1 top trap dimensions 50MO' \ / TOP / z - X X Lv ti Q DAM +v X �� w U) w " v V /� ZW ` i ON LU 0 L t' ' LU Q vv o a V V v� -_ C0 f v `+ (n X X Sediment Trap design #3 •IABLE.j� U I o 6 XI X c ♦ vv drainage area (acres) (< 3 ac) 1.44 Nw��\ y �1�� I J' W < X i SF x o / / X /X ♦ \,. trap (ft) area (sf) wlume(af) volume(cy) pN p CREST OF STONE WEIR ,pg1AR�• ,.G• -/-\ \\ \• o-`�-.�' '.'', f1/ Q ♦♦♦ v } `vy vvv Lr_ X >fy • ; 890 1408 0 0.0 J Q O X C % 892 2160 3,541 131.2 / CCC ♦� } DRY STORAGE - Y'E WIRE \ \ r ••• � ~ / X Q �'♦♦ }/ 894 3040 8,716 322.8 " +\ • . ♦ O U U) / X Q ♦ /V A 0 0 0 0.0 + v v •, ♦ N O_ a1 } \+ 88 0 0 0 0.0 WET STORAGE \+ \ .. LL (ExawTEO) PILFER CLOTH oRlOwu � \ �� \ \ \ , ' a X X X }} 1 GR�cu�nG PPORT� +`+\.,,.♦,; wwet storage: •SEE PLATE 3A3-1 CGMSE AGGREGATECUSS I PP P' +`+\ \ \\ \ '' / X X X X ♦♦ V j \v `\ \ \ wet storage required (cy) (67*DA) 96.5 +v+v+ �� v v v tit♦ ♦♦ \ X \ \ bottom of stone weir (ft) 891.68 \+\ s' w wet storage provided at this elevation (cy) 96.5 +v+ v ♦1 o w X slope of wet storage sides 2:1� v !, `" ♦♦\ X X \ weir length (ft) (6xDA) 8.6 4, v v Joe No. dry storage: bottom of trap elevation (ft) 890 IWill 222207 dry storage required (cy) (67*DA) 96.5 bottom trap dimensions: 22'X64' CIP \ �1�� , ♦� �/ �� crest of stone weir 893.0 top of dam elevation (ft) 894 SCALE •,� dry storage provided at this elevation (cy) 89.4 top width of dam (ft) 6' \ XCIP 1 T T =20' +\� �h.xuuuuuuuuuuuuual...�► SEDIMENT TRAP #2 DETAIL slope of dry storage sides 2:1 top trap dimensions 38'X80' 1 � k � SHEET No. SCALE: 1" = 20' X 8 PRE -REDEVELOPMENT STORMWATER MANAGEMENT PLAN, SCALE 1"=80' I / \ \ \ \ \ \\ \ - STORMWATER MANAGEMENT NARRATIVE: i.ivi.v, -61_ A OVERVIEW \\. A LOT 6 L'�\GIBSON •69-6C _� \ A THIS PROJECT PROVIDES STORMWATER MANAGEMENT (SWM) PRACTICES TO MITIGATE THE IMPACTS FROM THE PROPOSED -, EVERETT E 1R \ \ /- \ \ \ \ IMPROVEMENTS. CHANNEL AND FLOOD PROTECTION COMPLIANCE ARE MET IN ACCORDANCE WITH MINIMUIM 9 VAC \ STUART TAYLOR SMACK\ / \ \ 25-870-66 REQUIREMENTS AND WATER QUALITY REQUIREMENTS HAVE BEEN SATISFIED. PLEASE SEE THE ATTACHED Pre -Development Impervious Area Summary D.B.S�46-521 / _\ FIELDS \ _� \ \ \ �/ �- - 7 ACRES - STORMWATER MANAGEMENT CALCULATIONS PACKET FOR ADDITIONAL DETAILS PERTAINING TO THIS PLAN S COMPLIANCE. Subarea A, Water Quantity D.B.3415 4,707 PLAT - \ ��\ \ ---- \ \ - \ WATER QUALITY SUMMARY Building/Structure 8,600 THE BODUNDARY FOR THE ESC LIMITS OF DISTURBANCE WAS USED AS THE BOUNDARY FOR THE VRRM WATER QUALITY - _�_- _rY 2- \ \ Sidewalks/Concrete O sf � � �- \ \\� -� �, \ --_-- - - e � O p 0. \ � � � \ \ CALCULATIONS. PLEASE SEE SHEETS 5-7 FOR THIS BOUNDARY. THE STORMWATER QUALITY REQUIREMENTS FOR THIS 700 Roads/Driveway s sf / -r - LL 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 9,300 sf THE ISSUANCE OF A LAND DISTURBANCE PERMIT. Pre -Development Impervious Area Summary �_ - - '� - A ��� " �� - A \ y \ �� PLEASE SEE THE ATTACHED CALCULATIONS PACKET AND THIS SHEET FOR ADDITIONAL DETAILS. / - / 9 \ - - tee+ "� +. LL ••+�.--'7/jy. �\, - \ \ _\ VRRM Limits delineated by ESC LOD, WaterQuality _ / rO \ \ \ \ - \ LL " " `� \ \ WATER QUANTITY SUMMARY THE STORMWATER MANAGEMENT PLAN CONTAINS ONE PRIMARY DRAINAGE AREA, SUBAREA A. THIS DRAINAGE AREA Building/Structure 7,650 sf T. M.69-19G \ \ \ �4 \ \ (3 /' ST T T.M.69-51B \ \ CAPTURES THE VAST MAJORITY OF THIS PLAN'S PROPOSED IMPERVIOUS AREAS. \ Sidewalks/Concrete 0 sf PLEASE SEE SHEETS 5-7 FOR - - / \ \ \ - �"�\ -� RFS iQ \ ESC BOUNDARY USED FOR — --REVISED LOT \ \ \ J . - CRITICAL \ \ _� +__ �- \ �O�Q CR/p ,^) MCCLANAHAN, DE I IN THE EXISTING CONDITION, THE MAJORITY OF THE DISTURBED AREA DRAINS TO A NON -PERENNIAL STREAM, WHICH HAS Roads/Driveways 0 sf TOCKT N CREEK LLC LOPES \��_ - \ T Tj 0 FIELDS NO STREAM BUFFER, AND FLOWS SOUTH TOWARDS A CULVERT THAT RUNS UNDER CRITZER SHOP ROAD (ROUTE 151). AS \ VRRM QUALITY CALCULATIONS \ �. —! \ C/p L/ 7,650 sf 2.63 ES F F Z.SO ACRES THE LIMITS OF THIS PROJECT ARE MUCH SMALLER THAN THE OVERALL DRAINAGE AREA OF THIS NON -PERENNIAL STREAM, L D.B.5504,, PG.614 r t �!♦ \ �� loo YEAR FEMA� "` „�� ,-_ r. "- � " ` _ �, "� x �,\F �`SFj� THE BOUNDARY OF SUBAREA A IN THE EXISTING CONDITION IS DELINEATED BY THE FUTURE AREA THAT WILL BE CAPTURED _ --� - -- - + �R� AND ROUTED THROUGH THE PROPOSED DETENTION BASIN. MOST OF THE LAND COVER IN THE EXISTING CONDITION IS ♦'. F TJ' CLEARED FARMLAND, WITH A FEW EXISTING STRUCTURES AND WOODED AREAS SURROUNDING THE NON -PERENNIAL WATERSHED SUMMARY FOR CHANNEL AND FLOOD PROTECTION \ _\ \ ✓ - - + �� ~� \\\ \� \ \ \ STREAM AND BETWEEN EXISTING CLEARED PLOTS OF FARMLAND. \� O v '�� ""� THE PROPOSED DEVELOPMENT HAS ONE CONCENTRATED OUTFALL ITS DRAINAGE AREA IS DELINEATED BY WHAT IS I 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 27.72 73.56 DA A (Post- Re Dev) 67 15.73 1.78 8.47 24.83 85.72 " + + "- \" e 'T� \- '- _ \ CAPTURED BY THE PROPOSED ROADSIDE DITCHES, WHICH ARE CAPTURED BY THE PROPOSED UNDERGROUND STORM \ -- 1 �" SEWER SYSTEM AND OUTFALL INTO THE PROPOSED DETENTION BASIN. THIS DETENTION BASIN ATTENUATES THE PROPOSED 30 V `� - r " ___ r O \,- \ DEVELOPMENT'S RUNOFF TO MEET MINIMUM CHANNEL AND FLOOD PROTECTION REQUIREMENTS SET FORTH IN 9 VAC DETENTION25-870-66. THE OUTFALLS BACK TO THE NON-PERENNIAL NSTREAM. HE RESULTANT DETENTION BASIN �i «` _ .° " ROUTED OUTFLOWS ARE COMPLIANT WITH MINIMUM COUNTY &STATEREQU REQUIREMENTS. \ m _ o - - _ _ ✓ \ « ,�� ♦ 4- \�� IN SUMMARY, CHANNEL PROTECTION FOR SUBAREA A IS MET THROUGH 9VAC25 870 66 SECTION B.3.a (ENERGY BALANCE) ���_/ 4� AND FLOOD PROTECTION IS MET THROUGH 9VAC25 870-66 SECTION C.2. b. (l0yr. POST FLOW < 10 yr. PRE FLOW). y, ,` \ �, 0 .,� \ \` \ '+ COMPLIANCE WITH THESE SECTIONS IS ACHIEVED PRIMARILY THROUGH THE PROPOSED DETENTION BASIN. PLEASE SEE THE 924_ _ w y - �� \� , ATTACHED CALCULATIONS PACKET AND THIS SHEET FOR ADDITIONAL DETAILS. =-926 AREA OUTSIDE OF DA 'A' BUT WITHIN LIMITS / / -- j \ \ \ --� , ` — _ — WHERE AREAS OF IMPROVEMENTS OCCUR OUTSIDE OF DRAINAGE AREA W BUT WITHIN THE ESC LIMITS OF DISTURBANCE, —922- THE PERVIOUS AND IMPERVIOUS AREAS SHALL BE RELEASED IN A SHEET FLOW MANNER THAT IS NOT CONCENTRATED. FOR OF DISTURBANCE (5.59 AC) - - ° ` _ , INSTANCE, AS SHOWN ON SHEET 10, HOUSES ON LOTS 9, 10 AND 17 SHALL HAVE THEIR DOWNSPOUTS OUTLET TO SPLASH - 920- - -920- -� / BLOCKS TO PREVENT EROSION, SEDIMENTATION OR FLOODING OF DOWN GRADIENT PROPERTIES. PLEASE SEE SHEET 11 FOR SPLASH BLOCK DETAIL. THESE AREAS ARE THUS IN COMPLIANCE WITH 9VAC25-870-66 SECTION D. A V A vAPPROXIM 920q16�� I G ° LOCATIONS REAfC(1 — A ♦ V — 0' �• OVERHEAD-- \ vv \ \\ ( UTILITY L v A A -920� �_-i A - - 10- ��\\\v V \ V V A \ 9 LINE \ _ - VDH', 1 _ 9 VA \MONUMENT�v v asp \ �«. I I C�•r�� '•� ND A\ V\'sA _ �1►4y - �� � I POLE �� A CRITICAL \ \ \ `'o sL0 s T.M.69 51H -9 � �'930 .',`+ �o? � y � � \ 9 �v v_ _ � I m� �� � ° A GATES, JAIViES P OR _. \\ KERRY D ' .' �' v .'.'.'.'.,�vv V\� \ A \� v_��� v / �'� I I f �� °o 2.148ACRES I 9 J + T.M.69 6M V ++, + , + ++ v \ v v + _ REVISED LOT 7 = o .`..'''' ' +.++%+++ '+'+'+.* \.• "'•'• \ . \ \ \ \� '.. ' } ~ / I I \ \ \tee / E.C.ACK6RMAN TRUST � � �. _ \ / 9°L, � \ ,,,+ D.B.4733-23 O j / , . 'tiii i i' �'+ , +++++ +'' ' ., .' ,' \ \\\ \ \ '' , — / — / / \ \ \ \ i _ / \ D. B.4733-20 & 21 PLAT v p �� / / / y+ , +,+.+',' ..�,.j + I, + +'. ++,�� \ \=.'j \� _ _ / / T�=°.ZZ nrs. / / j °° D.6.4456 4 0�� Q G�i ' ' _ \ \\ �'�' \, ++ { 4: + �,'+ \ \ \ \ + \ 1 46'OFOLFw/DELE� / I , I Q LL\ / N *. , +'+'+ + +' \ \ \ \ \ 1� �- 954'OF CbNCf FLgsv w/0EL V. 30' , O� e \ \ \\ \ \\ D.B.3530-234PLLfkI c�v/ 4. . ' \ J`�ir. , ' +y+a+ .+.+.+a+ +'+ , + 'I`�r ���\ \\ — --- °° I I ° *l, �1 \ \ ',\*, ,'. A,'.'�','F,+'+,'' ,',+'o ', '�, �) 11 A + ,�+ +� , v \ \ \fie''+ '�\�� 0�\+5 + \ 1 0 �p L Fe \ / \ + ' \ . �. X 11 A , // 9 !� _ \ \ \ \ \ �► .'+ \ \.\+'+ �c — / ems T.M.69 51 A \�\ v \' v o LL \ O ti 0 \ \ GRAVES HOME LL( \ A \ \ \ \�► ' \ V �.�'+'\�+ ,--894— / too FOOT WPO. o `�62 /y� J 983 ACRES �. \'���� VA\ \� \\'��.+.+ \_ v �/ STREAM BUFFER \ '+ \ lLL +*+ \/ \ I \ \ \ \_ \ \� \ \\ \ \a� �1+\+\� \ �\ SUBAREA A J + Ott + 1 \ \ \ V �\ \\ ��*' V \ 15.73 ac. r a9°� v V A*, CN=61- �!r� \ \ V� \_ \ v� \\ VAA\\ \ �I A�A V� V A v \ Tc=O 22 hrs. \\ /� T.'M.69 6G ! �� �.� l ) _ \� vA\\Vvv\\v yy A y \ do w LOT 1 / \ A' \'' ''� ''fir / \ A V� A V \ \ .��'''+V\ \ \ y°- �� I ° ,. I/ o FRANK DCJNLEY & I I / .� \ \ �'1 V. v.,�+' \ _ / Imo \ / CARLA mONLEY ' = r . �} SLOPES L CRITICAL 85 & 86 PLAT..',+,.1 `..'''+1 + \ '..'+a9° ° e s� l_'. ' F 1. / + _/ ��rIs / \ + ULL I i/ �// _ / `+'\''',', \\ \ , . + , ++«\� v OVERHEAD / o / \ -932 — — — — �t V� \ A �� /� UTILITY ° ' / A-930 fjd� I�AG@' �. + �+ \ A ���� \. +' = 1 LINES ° �uB1EC� Is y i / _/��—' . ' a'`• ' ��*v� `\ \ I) 01 `.�' V I ! y+ +' ' y:A ' •' . .r?�Vvv� v\\�� �r.4. \ V v 1 I ♦ A 11 VDH / / O I I I ��\ —\_�/// / \\ _ �_ ) / 11`1111I '1 l\\ ) \ 1 I 1\.900 \ \\ \� MONUMENT' \- V_ �_ --- A __ ) 1 FOUND I I T.M.b9-19D / % I ) �\ A REVISED LOTS \ y �� ��� �/ �/� A V v v --�9°° / �� ���� I + �� \ �� \ / / \ \ / VDH STOC4.56 ACRES KTON CREEK LLC v v / JI ��� •'• i \ A + MONUMENTPG.614v= �// yw / A v v v / ��� MONUMENT V�� ► POLE I\ �/ FOU� D.B.5504,V ++� �� v/ \ \ \ VDH — / �,\\�// �1 "���\ v _ MONUMENT �i i _ \ \ y / �� +� I V FOUND v� IS �,� f F.\r \ V _ \POLE — - _ /// \ _ - SLOPES\ \ _ - — \ry� j \ --CRIifOAL SLOPES- — - _ \� �. \ �IMITS_OF ANALY_WORD" ,L� + / / 1 + .\+\ p\ \ \ 8 �� o FJ .', .'.'.'.'. +'\ i=\ i VDH FREEMAN, ARTHUR H OR \ \ \ \ o MONUMENT JOANN F I . '.�.',t. �\ \ FOUND 47.729 ACRES \\ _ __ _ —_ -VDH A _'' C \/ NIBV D \ \ \ — - \ — — \ SATE _�_ - - —_ M l �MEN� T OU = y �.% \ \ \ — JUST, OSEPH SCOTT& _ FO \� ---- i - f \ _ \ \__ RIT TE f C ZE R 15 �= _ CRITICAL �—��---- ii CASE sT — _ \ sH R ? — -- SLOPES _= _ — VDH \ GRAPHIC SCALE i / \ \ V R� — \ VARM OP_ - — - -- - \ 80 0 ao so 160 320 -21 ACRES A-WIDTµ O� _ = M-FOUND EN —� \� I );9__ 79 VDH - - - 'T- - — — — — / \ 21-1)\ MONUM -- _�_ \ V A \ v A �OUN VDH - - - ( IN FEET ) MONUMENI — VDH i inch = 80 ft. FOUND / MONUMENTPni min \ SCOTT/R. CDLLINSZ Lie. No. 035791 .1, 1/4/23 ,�i .A z 0 O U J Zx o Lu w O a m wO o z z o O VI > GO Ww GO � O z L9 ti cYi � z N W M Q J WCIAz rn LU CN W N> < z Q z � ZLLi Q W J d z > L9 LU w 01-1 a z i U) 0 Y � O U-) r-i 0 z UlU) m W Z LU w J 01-1 W w U) W w JUo w U w z JLU OC� U O N U JOB NO. 222207 1 "=80' 9 POST -REDEVELOPMENT STORMWATER MANAGEMENT PLAN, SCALE 1°=80' v T.M.69-6c _ V v v v \ V� ����� o ��' Post -Development Impervious Area Summary LOT 6� \ \ GIBSON, EVERETT E JR v A \ \ VA \ Subarea A, Water Quantity STUARTTAYLORSMACK �� '���= v Y \\ \ FIELDS ✓ \ \ \ \ \ \\� \ SCOTT R. C LINS7 D. B.5246-521 \ Building 24,720 sf _ -- - V �� 1.07 ACRES - - A O g - D.6.34157b4,707 PLAT - \\ / — ` \ \� �\ \ \\ t� Lie. No. 035791 n Parkin Areas/Roads 90,150 sf \ i 1/4/23 �o Sidewalks & Concrete 0 sf 114,870 sf Post -Development Impervious Area Summary % ��� o- • �� �� v �� �� \ VRRM Limits delineated by ESC LOD, Water Quality [Building 31,200 sf PLEASE SEE SHEETS 5 7 FOR�S �Vdewalks &Concrete 0 sf \ T.M.69 19G A S ` \ \ \rkin Areas/Road 93,085 sf ESC BOUNDARY USED FOR \ \ \ - \ w� �� RFS TR T.M.69 516 \ \\ \\ g - REVISED LOT 0 C T I i\ \ \, VRRM QUALITY CALCULATIONS \ - - CRITICAL \ (� Rjp is MCCLANAHAN, DENISE \ \ \ \ \ 124,285 sf STOCKTON CREEK LLC ,� \ LOPES ��— ��= TAR J/��0 FIELDS / 2.63 ACRES A V �� 4 y� y NpF� 2.80 ACRES D.B.S504, PG.614 ma in im � A \ A� ioo YEAR FEMA = AREA OUTSIDE OF DA'A' BUT WITHIN LIMITS OF �� � �� \ �� v vRO � \ ♦� FLOODPLAIN V o �� DISTURBANCE (5.59 ACRES) v / ��� � � �� on ft � 1 _ Q \ 93 -- _ J 1 �\♦�� j LOT13 � m ��� �� A r�AM& 5.05 ACRES �a►� ti. A — V ` Ella i \ �� o o z V m 926 _ --------------- � y �`. LOT 12 \ V — � _ � % o . \ � ���� � � � �� � � N � am - �` \ �L� AVAA ♦ 2.41 ACRES V — _ _ o � �� ��� � / \ \� �� \ \ ED \VA\ � ��� `. =O y __ _ _920- / `�� \� ,� �" u���- X� \ �� \\� \ U, 2 - - v 9 ° �� i `� A w b>iATE v a' li �j ----_ .. OVERHEAD r�� \ \ \\ ���� \ Sao' ♦ UTILITY E HOU ES OUTSIDE DA'A' SHALL HAVE \ SPLASH BLOCKS AT THE OUTLETS OF THEIR + V \ V \ DOWNSPOUTS TO PREVENT EROSION" \ \� '\ \ J� \ - \ s ♦ MONUMENT \ SEDIMENTATION OF FLOODING DOWMV A�� V �g g6 �� LOT 1� O +. ��\ V� e o - FOUND \ \ \\ GRADIENT PROPERTIES. SEE SHEET ss FOR \ 5 \ � A � � � / � �-�, � �:��. � � A\ � ♦ � � ♦ 3.95 �AGR - \ SPLASH BLOCK DETAIL l� �/ V CRITICAL � \ o � � � � � `�� — — A - � SLOPES ` \\ o° - / ` " "� \ � ��VA v �y ♦\ � ', -♦ � ti � � T.M.69-51H ..\ , ,� g3o ?o' �o �V� �A� ■ V rc°.� n s. �� �o`r�� GATES, JAMLS) FORS \, A w �-, ^ + V \. 0� .� A �� 46 OFOLFw/AELEV i' ...., _ "� KERRY � Q ,� A A. A� O \ \ %- A 0 - I \ =',^^, .,%,.'`'•*• \� \ \\�\\ RITICIL \\ \ \ r� /�� 6og'CHANNEL FLOW IN Ca ftls 441, �\ \2.148 ACRES P s, 2.730ACRES j. r.*�\ ^ ' SLOP 5 1 , I I T.M.69-6M a 4 X ,^, , +1 a°6 I I 9�° \ \ \ y , , REVISED LOT 7 „ CP E.C.ACKERMAN TRUST D.6.4733 23 o„ ,^ \ v 21 PLAT Q�O ^...\ \\ :'.° , , D.6.4456-44A O a o �' i - - 0° �a .. ti . `' � - - V r vAz ra— Z D.6.3530 234 PLAT \ ti C9 � _ , , , �' 9 1� 1`f �� �� SL,BAREA A�co ��/��\ 8 A� .�� i. 15.73 ac. W N a C� ^2 - o` ^ r � N �`, , �!� ^\��A\ cN=67 v \ v LOT 15 r / / ��9`�� s + s \ , Tc=0.23 hrs. \ / \ ) �� s '� T.M.69-51 co \� / / / \ \ \ � � i � /� / � � `, ♦� � ^ \' oa �A\V � \ ��\�\\ � / � � � � � � 2.40 ACRES � � oo � v ����� �,OG GRAVES HOME LLC /�/ ��\ ,!' ----- -- j `,' ♦ j `: `(1 �;�� o �B \ \ / oFOOTWPO. o o�9 ACRES / %�` I � .� io 26,91111 �j 94 ` / /1 LOT 2S °o \ ` VA\ ` �' ' m I i STREAM BUFFER \ �e �� p� ����� �Z AC LL \ 2.02 ACRES o ti' W LU LOST/16 \ \ �� a �� Q �� / i 2.25A�,RE5 o �\ _ W i LOT 1 �� v V` '.' o / �� W Q U' FRANK DONLEY & �., v \ \ �' - A�� esa� V ° _J Q �` '� J _ / \ r \ �\ - J CARLA DONLEY / i �� -� i r CRITICAL Z D.6.3'�80 82, _� ♦� i �� r a SLOPES o \ \ < 85 & 86 PLAT �/ ♦ LOT 22 / ! / V \ r\ so o y (� 9a°_ ♦ I� 2.49 ACRES o L9 � A, �y I �0 �� OVERHEAD / �o J — — — r s3o---- _ — DRAINAGE % \ \V �- . v� LOT 17 U IN SY oo Q \ \ --2.QT-ACRES— - - - 930- / /DIVIDE +� \ a _ 0 _ _�_ - \ �Uel1 C� I� _ _ i , , ! �1� ��+��� \ 4 4 69 - \ , Y 6.19 ACRES �U 0 ` \ c j\ A % / 920 — HOUSES OUTSIDE DA'A' SHALL HAVE SPLASH W y ' _ A +. LOI 2U \ , + \ S OUTS PREVENT OUTLETS THEIR DOWNTO A SEDIMENTTA ION OF FLOODING DOWN LL.I / \ \ '� 3.47 C ES __��� GRADIENT PROPERTIES. SEE SHEETss FOR �� Ul � LL C i ID v _ ' SPLASH BLOCK DETAIL G _ VDH �� �cRIICAL \ - Z) d MONUMENT \ ��� /� SLOPES \ i W FOUND T.M.69 19 — ��_/ \ - , V \ \ l _ _ v _ - \ \� \ REVISED LOT 3 \ A \ _�� �_ 9°° 1 \ VDH L01 LU A STOCKTON CREEK LLC / / / V \ \ W 4.56ACRE 5 _ v / �..�„ �, A \ �, II �� LE �// , MFOUN ENT w D.6.5504, PG.614 �� � � �--7 � ��� / � vw\ � � � A \ � � � ` \ � � � � � W 1� � 1� \ V � i\ � � � \ V � � LOT 18 i � � / i / A� j / V� V I 2.05 ACRES �� H W s LOT 3B v �� 1 //� V i / �� �I v V1, J H U 2.49.ACRES, — _ Al \ --- 89 / I 10 \ . / I, i - _ / A LOT 19 + + \ �� F / \ \ VDH 3.43 ACRES MONUMENT ♦ ��A A\ \� '.FOUND \ / - / ✓ //L_E y QQ� rgx`\ \ S\ -ISI- _8 0 0 CRITICAL SLOPES �I oFANALYoD \ VA Q Q (dn ai I�� .� i� \l FREE T.M.69 50 \ \ VDH MAN ARTHUR H OR \ MONUMENT JOANN F - --- FOUND 47.729 ES - _ VDH / ACRES u / �1V�BNU JUST O69-19A7 SCOTT & ---MONUMENT MENT ST E _ , JOSEPH SC AT — — — �E°P` � � - GRAPHIC SCALE JOB NO. \ RITZERSRO E 151 — = i VDH - ��'AP,IABLESHOP ROAD - -- - - MONUMENT-----222207 21 ACRES HWY P WIDTH & ' �� -- - =— eo o <o so so azo SCALE D:B:413- TH R/w I _ — _ FOUND / 20g \ VDHif /�// _ \ THRU 211)� \ \..MONUMENT - _ _� _ - \ 1 =8O \ FOUND /H _ (IN FEET) SHEET NO. �_ \ -� I1 l A MONUMENT`_ - 1 inch = 80 ft. 10 _ _ \ DETENTION BASIN DETAIL, SCALE 1"=20' I J ' i I PROPOSED CLASS Al, EC-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=15 FT, D-18"). 40' W DE GRASS LINEDCY SPILLWAY (CREST ELEV.=866.40') WITH SIDES SLOPED AT 4:2 ,. II ID I m � II I F � , I i 00 \ \ I I � 8' WIDE TOP OF DAM ELEVATION=I i \ i PROPOSED STR. Ai, A 36" HDPE STANDPIPE TOPPED WITH A STEEL WEIR PLATE PROVIDING A 24" OPENING AND TRASHRACK TO SERVE AS A RISER STRUCTURE. RISERTO HAVE A RIM ELEV.=86 .it ' A 6" LOW -FLOW 4 7 ORIFICE INVERT ELEV.=86o.00'. RISER TOP & LOW -FLOW ORIFICE TO HAVE STATE APPROVED TRASHRACKS. SEE THIS PLAN FOR TRASHRACK DETAILS OR EQUIVALENT. f, \ 862 { 1 6 64i / +- 866 1 1 / 8' 68 ROPOSED CLASS AI, EC-i RIPRAP OUTLET ROTECTION WITH GEOTEXTILE FABRIC TO BE • EYED INTO EX. GROUND 9" MIN. AT ENDS & ALONG PERIMETER. FABRIC TO OVERLAP A MIN. %w•OF 9" (L=>6', Wi=6 FT, W2=i8 FT, D-i8') OUTLET PROTECTION SIZING VARIABLE WIDTH SWM ACCESS AND MAINTENANCE EASEMENT_ J LDCo / \ \ -864 � I\ I >o PRIVATE ASPHALT ACCESS ROAD TO SWMi FACILITY WITH 3o' PRIVATE ACCESS EASEMENT oko j Ri SD It CRI TYPE LENGTH WIDTH DEPTH TO DENTENTION BASIN RISER VDOT CLASS iA 32' 6'-15, 1.5' OUTFALL OF DETENTION BASIN VDOT CLASS iA 16' 6'-18' 1.5, CIM• 875 100-YR PEAK WSE 866.98 PROPI SED STR. Aa, A 36"HDP 10-YR PEAK WSE- 866.38 STANI PI PE TOPPED WITH A STEEL 2-YR PEAK WSE- 364.63 WEIR LATE PROVIDING A a4" 1-YR PEAK WSEs 863.82 OPEN I G AND TRASHRACK TO SERVE ASA ISER STRUCTURE. RISER FO HAVE RIMELEV.=864.i/,A6" 870 LOW-1 LOW ORIFICE INVERT 870 LOW- LOW ORIPCETOHAVE S rATE PLAN RASI OR TRASHRACK DETAIL , OR EQUI LENT. 8'WIDE TOP OF DAM ELEVATION=868' WITH A4o' WIDE RIPRAP LINED EMERGENCY SPILLWAY (CREST ELEV. 866.40') 865 86S PROPOSED GRADE EXISTING GRADE nNTFLOATATION INV: 859.00 86o PIPE Al TO 74.94 LF OF 2 860 III 24 CL, TO PREY THE RISER BAPROPOSED BASIN'S FLOOR SHALL BE SLOPED TO DRAIN TOWARDS RISER (0.5% MIN.) WITH POSITIVE SLOPES THROUGHOUT V TESa TO OUTLET PRO ECTION 855 855 TO PREVENT FLOATATION THE RISER BASE SHALL BE FIRMLY EMBEDDED 6" INTO AN i8" TH CK REINFORCED CONCRET FOUNDATION PROFILE SCALES THAT IS 5' 5%AND BURIED i"=S'(VERTICAL) BELOWG OUND. a"=5a'(HORIZONTAQ 85o 850 O O^ O 0 8 No ra 00 00 6 IN m m 00 00 0+00 0+50 1+00 1+50 DETENTION BASIN SECTION 8' WIDE TOP OF DAM ELEVATION=868' PROPOSED GRADE 8654" 865 PROPOS D40' WIDE VDOTCL. At IPRAPLINED EMERGI NCY SPILLWAY WI 4:u& I ILTER FABRIC UNDI RLAYMENT(STONE DEP H=iB')SIDES SPILLWAY CREST ELEV. 866.40 86o 86o r9 o n m IDtD IN W lO 6 W aD W m 0+00 0+50 HORIZONTAL GRAPHIC SCALE DETENTION BASIN SPILLWAY SECTION HORIZONTAL GRAPHIC SCALE 50 It 25 50 100 ( IN FEET ) 1 inch = 50 ft. VERTICAL GRAPHIC SCALE 5 D 2.5 5 10 ( IN FEET ) 1 inch = 5 ft. 20 ( 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 3.24 SPECIFICATIONS, INCLUSIVE OF STR. 6 SINCE IT IS LOCATED WITHIN THE DRY BASIN AND IS SUBJECT TO BUOYANCY. 3. CONTRACTOR SHALL HIRE ATHIRD 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. y. 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. ALL SLOPES GREATER THAN 3:1 SHALL BE PLANTED WITH NON -EROSIVE LONG GRASSES OR OTHER TYPES OF NON -EROSIVE PLANTINGS. 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 25 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. 5. 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 ( Q 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 SEDIMENTTRAP 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 SHALLCLEARAND STRIPTHE PROJECTAREA IF REQ UIREDTOTHE DESIRED SUB -GRADE. 5. INSTALL E&S CONTROLS PRIORTO 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 SHALLALSO INSTALLTHE RISER, OUTFLOW STRUCTURE AND/OR THE BARREL(s) 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 SHALLALSO ADHERE TO THE CLAY LINER SPECIFICATIONS OUTLINED IN TABLE 14.4 BELOW: Table 14.4. Clay Liner Spectficarions Property Test Method unit Specificalfion Permeability ASTM D-2434 CrrVsec 1 x 1 P2lasbcify Index. of Clay ASTM D-423/424 % Not less than 15 Liquid L1mit of Clay ASTM D-2216 % Not less than 30 Clay Particles Passing I ASTM D-422 % Not less than 30 Cla Com coon ASTM D2216 % 95% of stantlard rocttx density" Source: Virginia Stormwater Management Handbook (1%9) 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 SHALL THEN CONSTRUCT THE EMERGENCY SPILLWAY IN CUT OR STRUCTURALLY STABILIZED SOILS. 11. THE CONTRACTOR SHALL THEN 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 INSPECTIONS THE 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 THE GROWTH OF THE GROUNDCOVER. 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. B. 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 FLASHBOARD 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 EXTERNALSIDE 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 CRITICALTO 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 STRUCTURE(s). 4. DRY BASIN INSTALLATION (e.g., INTERIM AND FINAL ELEVATIONS) 5. PLANTING PHASE FOR TURF GROUNDCOVER 6. FINAL INSPECTION (DEVELOP A PUNCH LIST FOR FACILITY ACCEPTANCE) StormRax- ROUND SERIES TRASH RACK (OR EQUIVALENT) CONCRETE MANHOLE STANDARD 601NCH RACK SHOWN DIMENSIONS IN INCHES wererm,cruwv ru•nceN MNIRMRYIrJw.K .I 1 II PLAN SIDE VIEW ISOMETRIC Stormllaxne Round Series for Concrete Manhole FfRNo. Dim OMB Mac Min ID min 00 RS•24 17Y 14% 28 . 24 30 ASd6 211', 14K 40,f 36 43 w 27 Y, L 54 . 48 S7 PS40 27K 1st 66IS 1 60 70 Plastic Solutions, Inc- GNT(rER POIlia4386. Wl ater, VA I7600 239 Muffles Rd, AWrlwrc,, VA ZienT :677) 877-5727 phone FAO.ECT: ;S4017ZZ-2219M htW=//wnw.plullc-soluaon.mm CONCRETE STRRUCTURE DIMENSKM INSIDE STRUCTURE DIMENSION OUTSIDE STRUCTURE DIMENSION AVAILAMLP OP ION• GROSS BRACING FOR ovERwwD HDPE ANTI-VORi7L PLATE DAIS DMWNBY. AW0111 DETAIL • nLLaF=J nl. � Id:,=v�r • �� 1_I N• nm l:n:en (D®® ®0jo Isornet rlc 4 IIIR'P I I I:I:ry u. 0000 L4:.. �.i ,•r ...,eyr � ` • envem eLLL v Ilvonl Isle nlrnar:�rnl non, ,.an Hnpr n holes and 1/4- plate SOCt10N mm:utnctured 0y f'IeeUc Balullnv Inr ar equnl dta hnle o o 060 o O •mA1e B11P EleVallion v I!Icc PLASTIC DEBRIS CAGE Po. en,4 tin QOLIITION� A, „VA a�,,. INC.. --nve) re Plnec-ml x. SECTION A-9: 'n PICAL GRAPffiC.AI. DETAELS Homogeneous fill rtrin �Cut off trench-C below suitable material Sal ar mck L - - - - - - --J TYPICAL HOMOGENEOUS EMBANKMENT Transition fill ock or gravel -Ne outlet Coa fib� Perforoted collector arwFrfeid sfo�s oundotion drain 4?kt drain FOUNDATION DRAIN BLANKET DRAIN / 5un4 ya,d ar ,od •anI a0. Rock a grovel Ruh Ira drain �Tronsiu0n miff Traraitipn filter CHIMNEY DRAIN TOE DRAIN Figure A -la. Honmgeneons Enlbarlknlents wv S'eepage Controls EMBANKMENT NOTES: AFTER AN 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. ASUMMARYOFTHE EMBANKMENT DESIGN REQUIREMENTS ARE LISTED BELOW, MANDATING THE CONTRACTOR MEET THESE REQUIREMENTS AT A 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 CONSTRUCTION SHALL BE APPROVED BY AN ONSITE GEOTECHNICAL ENGINEER PRESENT DURING THE CONSTRUCTION OF THE EMBANKMENTS AND FILL AREAS. a u COUNTY OF ALBEMARLE • Department of Community Development + hmaMr 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 BMP's certifying proper installation and functioning. SCOTT/R. CDLLINSZ Lie. No. 035791 .1, 1/4/23 z 0 O U J ZX O LU W O ceDo ce Q �••� w o 0 Z z O O VI \ co / > Ww LUtie F- L9 i m z N W M Q N z WCD LU W N Q > z _- Q Z J 0- Uj I- > I L Q LLI I- OLU J j W z c� O z 1 , ^ Q `1 Iv ,-I W LLI UlCO Q W CO Z LLI w U' O LU i Ln U) LU J U Uj z J O Q 0 O (IU O N U`� U J OB NO. CALE "=80T 11 OUTLET PROTECTION SIZING V A TYPE LENGTH WIDTH DEPTH RIPRAP CHANNEL OUTFALL OF36"CULVERT VDOT CLASS II 30' UP TO 874' CONTOUR 42" A A \ LOT 6 v \ A T.M.69-6C = ��' \ UART TAYLOR SMACK \ V GIBSON, EVERETT E JR D.B.5246 521 -�-- �, FIELDS / / A \ D.6.3415-704,707 PLAT - \ 1.07 ACRES NOTE: ALL HOUSES SHALL HAVE SPLASH BLOCKS AT THE OUTLETS OF ---- - _ - - \ \\ THEIR DOWNSPOUTS TO PREVENT EROSION, SEDIMENTATION OR- \\\\ \ FLOODING OF DOWN GRADIENT PROPERTIES. PLEASE SEE SHEET ii FOR - A DETAIL OF THE SPLASH BLOCK, OR EQUIVALENT. - \ / K \\ \ \ \ \\ �\ / / T.M.69-19G W ARFS \\ \ \ \\\� / \ \\ - --REVISED LOT 6 �- ' �\;., S R \ \ \\ \\ \�-- I \�<p TR/pT \ CRITICAL \ \ v--- - - - - - STOCKTON CREEK LLC \ \ \ SLOPES ,2.63 ACRES 65 \ \ 4 50 P \�ioo YEAR FEEMA FLOODPLAIN - - \ LOT 1 5.05 ACRES v °� Project Sbdcton Creek Plan Sheet No. Designer LW Sheet 1 of 2 CUIVett Rev. Dab Date 8/15/22 STATION: AHW Controls HYDROLOGICAL DATA: 100 yr. Flood plain elev. Design AHWdepin elev. Structures elev. Bee. TWelev. Culvert#1 (STR-12 - STR-11): DA=35.91 ac., CN=59, Tc=24.2 min., 2-year Q=11.50 - = J 10-year Q=44.09 cis,100-year Q=115.56 cis Shoulder = elev. 893.61 = CL elev. 893.83 DISCHARGES USED RISKASSESSMENT ACT Skew ° Cover rt Q 2 = 11.5 CFS DebursAvailable Length 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 Criteria and Significant Impact Ong. Gr. Elev. L= 245.75 ON. Gr. Elev. Q = CFS HEADWATER COMPUTATIONS CONT OUTLET End INLET CONT. OUTLET CONTROL CULVERT TYPE & SIZE Q QB HW VELOCITY Treat. COMMENTS HWID I HW Ke do (dc+D)/2 he H LSo I HW C.M. Sirl ELEV. Proposed 36" RCP Culvert(2 yr) 11.5 11.5 0.49 1,5 0.5 1.1 2.04 0.71 0.5 4.6 -3.40 1.5 8.85 EW-1 VDOTSTD. EW-1 Class II OLdet Pmbclon Proposed 36" RCP Culvert(10 yr) 44.1 44.1 1.18 3.5 0.5 2.2 2.58 3.64 0.5 4.6 -0.47 3.5 12.82 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. Overby Flood Exceed. Prob. Elev. SUMMARY& RECOMMENDATIONS I Base Flood 1% Exceed. Prob. Elev. \ VA -926_ LOT 12 2 41 ACRES �� - / __ _ / / u�. WATERSHED SUMMARY FOR PROPOSED 36 RCP CULVERT - \ vz° ��/ 9zo - / \ \\\�\ \I� LL \ "-2. 9zo f�,-. �� � �. DOWNSPOUANDSPLASH -\-_. // _/�� ' /�O��\` \ \• \\\ \\ BLOCK SHALL TOWARDSDIRECT ROOF -// APPROXIMATE �8 ACRES v ( v v v \ LOCATION STREAM V A A \ \ \ \ �� V A \ V• _ - / ,- �- V y/' \ V A \ \ \ STOCKTON CREEK LANE Area, 2-year Flow, 10-year Flow, 100-year Flow, CN ac. cfs cfs cfs DA to Culve t Crossing Stockton 59 35.91 11.50 44.09 115.56 Creek Lane OVERHEADa1 \ LOT 10 �9io \ \\\ / \ - \\ O \ c13 _,/ UTILITY -�_ v gio/ LINE.i �I v�� / A 20 ACRES v I�vy /, Cis \\ °a -\ i a o � isl a $96VDH LQT14 o MONUM ENT FOUND \ 3.95 ACRES P 0 CRITICAL SLOPES I DOWNSPOUT AND SPLASH :\OA ` T.M.69-51H / 90_ / v \� v �y o GATES JAMESPOR y 3 / \ o \. A9� AA \ A v i �\ I .v v BLOCK SHALL TOWARDIRECT ROOF \ , / v RUNOFFTOWARDS SOUTH `V •O _ _ SIDE OF HOUSE `O \ RlncAl \ \// LOTH' \\` /\\ \\ / 0- SLOPES 2.148AC62E5 KERRY D v\ vv v 2.73 ACRES// \ v y o T.M.69-6M 1 \ \ �!� \ \ / \ \ `�\ 6 \ ,\\ ., \ / 9° I �, � / � o / REVISED LOT 7 2 0 9 / - / / \ \ \ / / 0 E.C.ACKERMANTRUST w ��� 9ska \ �_,- \ \ \ \ 89°\\ \ / /// / O ° -- o D.B.4733-23 p j� ` m \ - -9° / �' J \0 /0.6.4733-20&21 PLAT �O� � � \ ---- __ -- \ �1.. ! DOWNSPOUT AND SPLASH � ,• \ / , -" '� `':•\ \ - `�' D.6.4456 444 Q BLOCK SHALL DIRECT ROOF II T '- 3 \ \�\ / /•Sp0 PSO' /- N s FF F RSUNO°FFTOAWARDS oD 6.3530-234PLATOCKTON CREEK LANE b O TpNs4o dS Oz36 UB iooFOOTWPO \o �r � a 4\ `•V\ '\.�- N9y4 LOT15 STREAM BUFFER J �A O- -, 2- T\v.M\ \.6\\ 9 51NO 2.40ACRES RAVES HOME LLLOT23o 26.988 ACRES _ - - \ I / - \ \ v.w e LLe\•. "� v- f/ \ \ \ \ v v , i - vs�s°�� LOT 16 / _ oil v v A / m / ' \ I\ BLOCK SHALL `• \ tiS�G C\O _/ T.M.69-6G / / l l / I ,, /d, \\ /- DOWNSPOUT AND SPLASH � `' � cz� 9a , _ 09 eA � g \ o2.25 ACRES - LOT I / / � BLOCK SHALL DIRECT ROOF / 'FRANK DONLEY I �' \ \ STOCKTON CREEK LANE / I 20PUBLIC DR E - ` - F G DRAINAGE SMT o CARLADONLEY SLOPES CRITICAL � Czo / it � A l / � �\� // 5 PES //� � O D.B.3380-82, v / 1 1 \ LOT 22 / 85 & 86 PLAT � I I /�/ \ \ � _- , =a v 2.49 ACRES i / ' ao �• \ 11 / PROPOSED S VDOT RIGHT-OF-WAY �.. -\ Is \I /920/A K\ VAS\VAA ,>>;.'>/OLE j v\ 93 - - / / - V A OVERHEAD LOT 3A z-- ---- - PROPOSED 50' VDOT RIGHT-OF-WAY / / - � \V A v \ �II vUTILITY 2.07 ACRES SPLASH - '----- - 93 / \ ', \ v , . / v LOT 17 LINES o o - / L - � � \ � ' v v vI v 6.1t9 ACRES /I / 0 __ SUBJECT --��- I� -_ / / BLOWNOCK SHALL AND DECT ROOF J--- / PROPERTY, ---I -- ---- --TYP. --1 // STOCRUNOKTONN CREEK LANE /----- LOT21 ,, � 1 / r � r �� - � „__- -r _ _ / , 20 PRIVATE DRAINAGE ESMT qzu /' / 3.10 ACRES \/ LOT 20 / "voo�/ 3.47ACRES I �v AV�A\ / r / 3 B _ \ VA� ✓ A VDH " . i� / i' -- T/�' `'', ICRITICAL / / / / / / v SEE DESIGN THIS SHEET ` r I SLOPES MONUMENT-� -- I --1 / / v 6"RCP CULVERT FOUND T.M.69-19 / // \ \ / _ 9°° 1\ / - ����� I // ///� �� I A ( - REVISED LOT 3 / / � / / / / / � / / / / I �1 I � a'°�/ � \, A 1 � m \� � � 1 � r �• VDH STOCKTON CREEK LLC 7 , _ / v \ \ / 4.56 ACRES ' \ // // F / P \ �' MONUMENT / , / i / v / DOWNSPOUT AND SPLASH / �- o ` / D.B.5504 PG.614 v / /-� - - / // / �v / BLOCK SHALL DIRECT ROOF / a �A - FOUND ` ' - - . -i _ v� - RUNOFF TOWARDS SOUTH \ LE ,�. U \ / - - �� / / _ i \ \ \ TOWARDS DETENTION BASIN \ \ / LOT 18 A ./ / / � � � � // /' / / � \ � � V v �� AND/OR EAST SIDES OF HOUSE I � / - 2.49 ACRES v v / 1 - - - - - // %/ / / v - _ 20'PUBLIC DRAINAGE ESMT / , / A 2.05 ACRES / y -8 LOT 19 \ / /\., \\\ DOWNSPOUT AND SPLASH / \ A / - BLOCK SHALL DIRECT ROOF -Q VDH RUNFORDS SOUTH3.43 ACRESOFHOUSE ��R)MONUMENT 21 FOUND \ \ J- 80y s66 e6s ' CRITICAL ' / I v v v v zo' PUBL C DRAINAGE ESMT Go s6� \ / -_ - CRITICAL SLOPES � �- - - \ \ � �'° / F / ou ��I���� �I�I � s66 �° �6 - �86 � _ �/ MOVDH NUMENT FREEMAN, AR F s6a �g6o 85a o _ 50 \ \ \ \I e6 TF H OR FOUND - _ _ _ _ -� \ a64 a6z - - 47.729 ACRES ,!` T.M.69-19A7 - - - - NIQ+NUMEN�_� / V -IS- _ 86ot - - - _ % ;IV1CiNlJIVtE1U \ - JUST, - - - y ATE IC SCALE I GASEY-R JUST �L�Ip AERSRaOP ROAD - SLOPES - - -_ -; MONUMENTVDH \ GRAPH ST JOSEPH SCOTT & fflUND _ U -- _ _ -- _ _ 21 ACRES HWY.p B IE NOTTO R /W - - -- - - _ _ FOUND - \, eo o <o so so azo 3 37 R _ - --- - \ B.3-20g TH OVN H 21 1 \ MONUMENT - -\\ ----- - / J i ��\ \ \ \ \ \ \\ \ -\�\ I VDH - �_ / - - - � - - � � \ ( IN ET ----- - VDH A FEET - � � A SOUND' - � ��MONUMENT - f - -/ - v \ MONUMENTFictill 1 inch = 80 eft. k7 SCOTT 7R. CDLLINS7 Lie. No. 035791 n A 1/4/23 I I� W N 0 rn N W N > U) in C. ZW W W JLU J01-1 O 01 N u U w T� F_ W 0 w Q I..L � z J U) > z z o O Ill LD Ill J LU U W U LL ` z 0 U O F_ JOB NO. 222207 SCALE 1 rr=80' SHEET NO. 12 if STORM SEWER io-YEAR CAPACITY CALCULATIONS TH 0� Design Storm Year= 10 DRIVEWAY CULVERT io-YEAR CAPACITY CALCULATIONS O Design Storm Year 10 0SCOTT R. LINSZ U Lic. No. 035791 tl ° 1/4/23 10NAL w z CD z w z O U 0 c y 0 c Z 3 D y O U O J Z Q Z [) � L W t w O d m _ U Q s ••�� •1 W ° 0 z Z O c O In o > .. W W m O (/� J U y ce o-F--, � C O Z ° `o HYDRAULIC GRADE LINE (LD 347) CALCULATIONS Design Year: 10 Project: Stockton Creek Subdivision Job 4: 222207 Prepared by: LMW, PE 6 RNCTIONLOSS C O O M w N � 2 � O E � o c - 0 o m 3 i z N N W 0 ° M � a T � 1 Q C ° N z W � W h N W N Q 0 o Q > z LLJ J Z -J > a z .a W° L9 1r~ o `J Q L O / J C J I U 01-1 U Q z U J o = Qa U I --I U ` 1 / n LU Roadside Ditch Lining Calculations Job Number: 222207 Designed By: LMW Y I --I o Stockton Creek Lane Ma S--o% EC-2,MaxV�.ofps VDOTO.AI,n=0.072 W > Q T ° Ma V=3.Ofps EC-3TypeA,Mas V=7.0fps VDOT CI. I, n�.086 ~ I --I Q z E H VDOTU.II, n=0.095 co < 0ll..t o Ul LJJ z_ z w w V / U) w z_ Z 11J � � z n/ w W z i U) W o J w za J ° a Q ° UI m O o U o N Roadside Ditch Lining Calculations Job Number: 222207 Designed By: LMW Stockton Creek Court Max S=5.O% EC-2,Max V=30fps VDOTCI.AI,n=0.072 ° y MaxV�Afps EC-3TypeA,Max V=7.0fps VDOTCI.I,n=0L86 U E VDOTCI.II, n=0D95 U O W0 w ii o U ° JOB NO. 222207 ° a SCALE 0 N/A 0 a o SHEET NO. 13 ®®------_- ®-®®------_- GRATE INLET COMPUTATIONS STRUCTURE DRAINAGE Sta From Sta To T= (m¢r) C Value Area (ac_) CA ccu I= (in/hr) Q= (cfs) Slope (ft/ft) Farth(n�.03) Jute(Sod)(n�.05) Riprap h� (in/hr) Q�� (cfs) Depth�� (ft) MmDesign Width (ft) VeL Depth VeL Depth VeL Depth (Depth) (Type) Note: Ditch terminates et STR-18 12+09 10+00 6.0 0.50 0.24 0.12 5.4 0.65 0.0450 2.58jps 0.29 ft 6.50 0.78 0.31 fr 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 jps 0.31 ft 6.50 1.01 0.34 ft 12" Faith 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 l.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 jps 0.48 ft 6.00 1.73 0.53 fr VDOT CL Al Riprap 6.00 ft 24+OS 19+83 12.0 0.30 3.44 1.32 4.3 5.68 0.0574 2.6 fps 0.85 ft 5.30 7.00 0.91 fr VDOT CL Al Riprap 6.00 ft Note: Ditch continues to Stockton Creek Court 24+OS 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. (mim) C Value Area (ac.) CA cc k (im/hr) Q= (cfs) Slope (ft/ft) Earth (n=0.03) Jute(Sod) (n�.05) Ri ra ho (in/hr) Quo (cfs) Depth,o (ft) MmDesi n Width (ft) Vel. Depth VeL Depth VeL Depth (Depth) (Type) Note: Ditch tennates 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 � m 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 1.1111 VDOT CL I Ripmp 8.00 ft