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HomeMy WebLinkAboutWPO201900009 Plan - VSMP 2022-07-18r 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. 12. Borrow or waste areas are to be reclaimed within 7 days of completion per Zoning Ordinance section 5.1.28. 13. All inert materials shall be transported in compliance with section 13-301 of the Code of Albemarle. 14. Borrow, fill or waste activity involving industrial -type power equipment shall be limited to the hours of 7:00am to 9:00pm. 15. Borrow, fill or waste activity shall be conducted in a safe manner that 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 of slides, sinking, or collapse. 16. The developer shall reserve the right to install, maintain, remove or convert to permanent stormwater management facilities where applicable all erosion control measures required by this plan regardless of the sale of any lot, unit, building or other portion of the property. 17. Temporary stabilization shall be temporary seeding and mulching. Seeding is to be at 75 Ibs/acre, and in the months of September to February to consist a 50/50 mix of Annual Ryegrass and Cereal Winter Rye, or in March and April to consist of Annual Rye, or May through August to consist of German Millet. Straw mulch is to be applied at 80lbs/100sf. Alternatives are subject to approval by the County erosion control inspector. 18. Permanent stabilization shall be lime and fertilizer, permanent seeding, and mulch. Agricultural grade limestone shall be applied at 90lbs/1000sf, incorporated into the top 4-6 inches of soil. Fertilizer shall be applied at 1000lbs/acre and consist of a 10-20-10 nutrient mix. Permanent seeding shall be applied at 180lbs/acre and consist of 115% Kentucky 31 or Tall Fescue and 0-5% Perennial Ryegrass or Kentucky Bluegrass. Straw mulch is to be applied at 80lbs/100sf. Alternatives are subject to approval by the County erosion control inspector. 19. Maintenance: All measures 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% of the wet storage volume is filled with sediment. All seeded areas are to be reseeded when necessary to achieve a good stand of grass. Silt fence and diversion dykes 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 commences. (Water Protection Ordinance section 17-207B) CONTRACTOR'S COORDINATION RESPONSIBILITIES 1. The contractor is required to obtain any/all permits required for construction of these plans. 2. Any time work is performed off -site or within an existing easement, the contractor is to notify the holder of said easement as to the nature of proposed work and to follow any guidelines or standards which are associated with or referenced in the recorded easement. 3. The contractor is to check that all easements, letters of permission, etc, are recorded/obtained prior to the start of any construction. 4. Contractor to verify all site plans and profiles and details for consistency and if conflicts exists, contact engineer for clarification and/or direction. Interpretation determined by contractor shall be done at his/her own risk. 5. The contractor is to verify that the relocation of all existing utilities in conflict with proposed work has been completed including utility poles. 6. Contractor shall comply with fencing and tree preservation signage required by Albemarle county code. 7. Contractor shall not rely solely on electronic versions of plans, specifications, and data files that are obtained from the designers, but shall verify location of project features in accordance with the paper copies of the plans and specifications that are supplied as part of the contract documents. 8. Contractor shall comply with all wetland permit requirements, if a permit exists. 9. Contractor shall be responsible for all relocations, (unless otherwise noted on plans) including, but not limited to, all utilities, storm drainage, signs, traffic signals & poles, etc. as required. All work shall be in accordance with governing authorities requirements and project sitework specifications and shall be approved by such. All cost shall be included in base bid. 10. Contractor shall control stormwater runoff during construction to prevent adverse impacts to off site areas, and shall be responsible to repair resulting damages, if any, at no cost to owner. 11. This project disturbs more than one acre of land and falls within the Virginia Stormwater Management Program (VSMP), General Construction Permit (GCP) program as administered by the Virginia Department of Conservation and Recreation (DCR) under the jurisdiction of the EPA. Prior to the start of construction, the contractor shall file a GCP notice of intent with the DCR and prepare a stormwater prevention plan in accordance with the VSMP regulations. 12. Contractor shall coordinate with all utility companies for installation requirements and specifications. 13. Contractor shall be responsible for site security and job safety. Construction activities shall be in accordance with OSHA standards and local requirements. 14. Contractor shall dispose of demolition debris in accordance with applicable federal, state and local regulations, ordinances and statutes. 15 Existing utilities shall be terminated, unless otherwise noted, in conformance with local, state and individual utility company standards specifications, and details. The contractor shall coordinate utility service disconnects with the utility representatives. GENERAL CONSTRUCTION NOTES: 1. Prior to any construction within any existing public right-of-way, including connection to any existing road, a permit shall be obtained from the Virginia Department of Transportation (VDOT). This plan as drawn may not accurately reflect the requirements of the permit. Where any discrepancies occur the requirements of the permit shall govern. 2. All materials and construction methods shall conform to current specifications and standards of VDOT unless otherwise noted. 3. Erosion and siltation control measures shall be provided in accordance with the approved erosion control plan and shall be installed prior to any clearing, grading or other construction. 4. All slopes and disturbed areas are to be fertilized, seeded and mulched. 5. The maximum allowable slope is 2:1 (horizontal: vertical). Where reasonably obtainable, lesser slopes of 3:1 or better are to be achieved. 6. Paved, rip -rap or stabilization mat lined ditch may be required when in the opinion of the County Engineer, or designee, it is deemed necessary in order to stabilize a drainage channel. 7. All traffic control signs shall conform with the Virginia Manual for Uniform Traffic Control Devices. 8. Unless otherwise noted all concrete pipe shall be reinforced concrete pipe -Class III. 9. All excavation for underground pipe installation must comply with OSHA Standards for the Construction Industry (29 CFR Part 1926). 10.SL-1 safety slab locations are based on the assumed use of precast structures. if cast -in -place structures are utilized, and the interior chamber dimensions are less than 4 feet, the safety slabs shall not be required. VSMP AMENDMENT #1 (WP0201900009) OWNER UNIVERSITY OF VIRGINIA FOUNDATION P.O. BOX 400218 CHARLOTTESVILLE, VA 22904 LEGAL REFERENCE & SOURCE OF TITLE: DEED BOOK 4170, PAGE 689 SITE AREA: 72.90 AC MAGISTERIAL DISTRICT. SAMUEL MILLER SOURCE OF BOUNDARY SURVEY: ALBEMARLE COUNTY GIS SOURCE OF TOPOGRAPHY. ALBEMARLE COUNTY GIS PRIMARY ZONING: R-1 CURRENT USE: VACANT PROPOSED USE: SPOILS AREA Leander McCormick IP Observatory 0 BUCKINGHAM SBALMORAL SITE HEIGHTS QUniversity Montessori School z� ® Fontaine Research Park Q ® Trinity Presbyterian Church Virginia Eagle Q Distributing Co a3 -es G�e�k MOO Cie¢ VICINITY MAP SCALE: 1" = 1000' APPROVED by the Albemarle County Community Development Department Date 07/18/2022 File WP0201900001-amendment 1 EROSION AND SEDIMENT CONTROL LEGEND 3.02 CONSTRUCTION ENTRANCE CE SF� 3.05 SILT FENCETEMPORARY 3.09 DD }� DIVERSION DIKE 3.13 SEDIMENT TRAP ST AR 3.31 TEMPO SEEDRNG Y TS [ME9 P SE EDNNG T PS P5 *REFERENCE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK (VESCH) FOR DETAILS REGARDING INDIVIDUAL CONTROL MEASURES. S: 782 N0BHILL 50 0 50 100 150 , SCALE: 1° = 50' � � I \\ I I I I j I I 1 \ \ \ I ✓� j I I I � I I I I I I I I 1 11 II I I j � � I � II II III II \II 11 111 1 I / III I II I II II l /' /// 11 I I II II III III I I I I I I I I I \ \ LIMIT OF AD ISTUBANCE PS I " \ \ \ \ \ \ \ \ SF \ LIMITS' \ \ \ \ \ \ \ DISTURBANCE \ \ \ \ \ \ \ \ \ -TMP 78-13B \to `\ CONSTRUCTION SEQUENCE \ \ \ \ \ \ \ \ LAVATORY \ \ \ V A \ -used as Waste -Area for v / ' INSTALL EROSION AND SEDIMENT CONTROL A \ \ \\ \\ \ \ \ \\ \\ \ dredging operations at \ MEASURES \ \\ \ \ \ \ \\ \ \\ �TMP 59D2-01 -2 \\ \\ / . \ COMMENCE DUMPING OF DREDGED MATERIAL \ \ \ \ \\ \ \ (Boars Head Lake) \ �/ WITHIN PROTECTED FIELD TO WEST OF \ \ \\ \ \ \ \ \ \ \ I FOXHAVEN FARM ROAD \ \ \ \ \ \ \ \ \ \ \ \ 1 \ DREDGED MATERIAL TO BE LEFT TO DRY 1 BEFORE BEING SPREAD ABOUT PROTECTED AREA SPREAD DREDGED MATERIAL UPON REACHING I \ \ \ \ \ \ \ \ 1 DESIRED MOISTURE CONTENT \ \ \ \ \ \ PERMANENTLY SEED DISTURBED AREA AS �� \ \ \ NEEDED REMOVE PERIMETER CONTROLS AT THE Z 1 \ \ \ \\ \\ \ DIRECTION OF ALBEMARLE COUNTY INSPECTOR II TOTAL DISTURBED AREA: 1.60 Acs. �`� \\ \\\ DRIVEWAY ACTS AS A// \ \ \ �� + \ \ \ NATURAL HIGH POINT \ \ \ \ \.0\ \ \ IMITS OF \ \ \ \I ISTI RBAN - - - - - V � FONj p1 L A /' I. /THE /CONTRkCTO SHA /ADHERE TO ST?bKP'ILE/ REQUIREMENTS FOR WASTE AREAS FROM\ ABEMARLE }130 L- / COUNTY CHAPTER 18 /SEC. 5.1.2& (SEE /NE�t SHE�T FOR DETAILS) / /'2. ALL DII fURBED AR AS ARE TO'BE /RETU�jNE[) TO THEIR MATERIALIS PRE -DEVELOPED SATE AFTER FILL MATERIAS GRADED T9� ENSUE THAT'IHERE IS NO INCREASE IN WATER-RUANTITY AND HERE IS NO NET CHANGE IN PRE TO POST4EVELOPrED LAND COWER// � 3. THERE/WILL BE NA CONCRFTt WA�SHOUfi, CHEMICAL STORAGE, DwMPSTER OR FIUEL STORAGE FOR THIS P.RWECT� i /ice �x/i/ �//i' vv v� vvvv vvvv vvvv vvv v TS v vvv v� CE DIRECT VEHICL \ \ \ \ \ \ \ \ \ \ \ WASH WATER TO \ \ \ \ \ \ \ \ \ \ \ \ AWASH RACK co q 0 O U z Z z�3 oU=)) U� _J O h N O Q z0 (1210 Q p o;W U Z oU >LL O a_ Z z J J U) O o w 2 Q Z c� w Q K �S J O CV Ir N _J Z O U N Q W O� o� C� :3cn� �, Q M OX ¢ _ \ J WC5 OJLL (n Z w o m o> Zq Q o_ a; 0 rn 0 LLI Lu v O w Z z W % a Ol N 21 0 0 C5 N �P�E.yTH �OF (DustinE.Greenee Lic. No. 55833 d&810NALL , E�G� Q z 0 w J M W Q O CY) m LL T Q Z LL LU LL O Q Q Z w OU E- Q Q a = m x � U) > X U) 0 LL ~ w J J w Q rn DATE: 02-22-2019 SCALE: 1'=' JOB: FILE: 19.0377 SHEET: El OF 02 I, SEC. 5.1.28 CLEAN EARTH AND INERT WASTE FILL ACTIVITY. a. EACH CLEAN EARTH FILL ACTIVITY OR INERT WASTE FILL ACTIVITY NOT ESTABLISHED AND OPERATED IN CONJUNCTION WITH A PERMITTED USE UNDER SECTION 30.4 OF THIS CHAPTER OR ESTABLISHED AND OPERATED IN CONJUNCTION WITH AN APPROVED SITE PLAN OR SUBDIVISION ARE SUBJECT TO THE FOLLOWING REQUIREMENTS: 1. EACH ACTIVE FILL AREA SHALL BE SHAPED AND SLOPED SO THAT NO UNDRAINED POCKETS OR STAGNANT POOLS OF WATER ARE CREATED TO THE MAXIMUM EXTENT REASONABLY PRACTICABLE AS DETERMINED BY THE PROGRAM AUTHORITY. ALL UNDRAINED POCKETS AND STAGNANT POOLS OF WATER RESULTING FROM DRAINAGE SHALL BE TREATED AS REQUIRED BY THE VIRGINIA DEPARTMENT OF HEALTH TO ELIMINATE BREEDING PLACES FOR MOSQUITOES AND OTHER INSECTS. SLOPE MAY NOT EXCEED 3:1. THE HEIGHT OF FILL MAY NOT EXCEED EIGHT FEET ABOVE NATURAL GRADE. 2. NO FILL AREA SHALL BE LOCATED EITHER WITHIN THE FLOOD HAZARD OVERLAY DISTRICT, EXCEPT AS AUTHORIZED BY SECTION 30.3 OF THIS CHAPTER, OR IN ANY STREAM BUFFER AREA AS DEFINED BY CHAPTER 17 OF THE CODE OF ALBEMARLE OR ON ANY HYDRIC SOILS AS IDENTIFIED BY THE UNITED STATES DEPARTMENT OF AGRICULTURE. 3. EACH FILL AREA SHALL BE RECLAIMED WITHIN SEVEN DAYS OF COMPLETION OF THE FILL ACTIVITY, OR SUCH LATER TIME AUTHORIZED BY THE PROGRAM AUTHORITY FOR RECLAMATION ACTIVITIES OF A SEASONAL NATURE. RECLAMATION SHALL INCLUDE, BUT NOT BE LIMITED TO, RESTORING THE AREA SO THAT IT APPROXIMATES NATURAL CONTOURS; SHAPING AND SLOPING THE AREA TO SATISFY THE REQUIREMENTS OF SUBSECTION (A)(1); AND ESTABLISHING A PERMANENT VEGETATIVE GROUND COVER. 4. INERT WASTE FILL MUST BE TOPPED WITH CLEAN EARTH FILL TO A MINIMUM DEPTH OF TWO FEET IN ORDER TO ALLOW FOR PERMANENT STABILIZATION AND RECLAMATION; AND ESTABLISHING A PERMANENT VEGETATIVE GROUND COVER; PROVIDED THAT THE PROGRAM AUTHORITY MAY REDUCE THE MINIMUM DEPTH OF CLEAN EARTH FILL TO ONE FOOT IF THE AREA IS UNLIKELY TO BE REDEVELOPED. 5. THE ZONING ADMINISTRATOR, OR THE PROGRAM AUTHORITY FOR THOSE FILL AREAS SUBJECT TO SUBSECTION (B), MAY REQUIRE THE OWNER TO SUBMIT A REASONABLE PERFORMANCE BOND WITH SURETY, CASH ESCROW, LETTER OF CREDIT, ANY COMBINATION THEREOF, OR SUCH OTHER LEGAL ARRANGEMENT ACCEPTABLE TO THE COUNTY ATTORNEY, TO ENSURE THAT MEASURES COULD BE TAKEN BY THE COUNTY OR THE PROGRAM AUTHORITY AT THE OWNER'S EXPENSE SHOULD THE OWNER FAIL, AFTER NOTICE IS GIVEN TO PERFORM REQUIRED RECLAMATION WORK SPECIFIED IN THE NOTICE. THE AMOUNT OF THE BOND OR OTHER SURETY SHALL BE BASED ON UNIT PRICING FOR NEW PUBLIC OR PRIVATE SECTOR CONSTRUCTION IN ALBEMARLE COUNTY, VIRGINIA, AND A REASONABLE ALLOWANCE FOR ESTIMATED ADMINISTRATIVE COSTS AND INFLATION WHICH SHALL NOT EXCEED 25 PERCENT OF THE ESTIMATED COST TO INITIATE AND COMPLETE THE RECLAMATION OF THE BORROW, FILL OR WASTE AREA, AND TO COMPLY WITH ALL OTHER TERMS AND CONDITIONS OF THE PLAN OR NARRATIVE REQUIRED BY SUBSECTION (B). IF RECLAMATION WORK IS REQUIRED TO BE TAKEN BY THE COUNTY OR THE PROGRAM AUTHORITY UPON THE FAILURE OF THE OWNER TO DO SO, THE COUNTY OR THE PROGRAM AUTHORITY MAY COLLECT THE REASONABLE COST OF THE WORK DIRECTLY FROM THE OWNER, TO THE EXTENT THAT THE COST EXCEEDS THE UNEXPENDED OR UNOBLIGATED AMOUNT OF THE SURETY. WITHIN 60 DAYS AFTER THE RECLAMATION WORK IS COMPLETED AND INSPECTED AND APPROVED BY THE COUNTY ENGINEER, THE BOND OR OTHER SURETY, OR ANY UNEXPENDED OR UNOBLGATED PORTION THEREOF, SHALL BE REFUNDED TO THE OWNER. 6. FILL ACTIVITY (EXCEPT FOR ACCESS) MUST BE SET BACK A MINIMUM OF 150 FEET FROM ANY ENTRANCE CORRIDOR STREET. 7. FILL ACTIVITY (EXCEPT FOR ACCESS) MUST BE SET BACK A MINIMUM OF 75 FEET FROM ALL PROPERTY LINES IN THE RURAL AREAS (RA), VILLAGE RESIDENTIAL (Mt), MONTICELLO HISTORIC DISTRICT (MHD), AND RESIDENTIAL ZONING DISTRICTS, AND FROM ALL PUBLIC STREET RIGHTS OF WAY. ACCESS MUST BE SET BACK 50 FEET FROM PROPERTY LINES AND 100 FEET FROM DWELLINGS ON ADJACENT PROPERTY. NO SETBACK IS REQUIRED IF ADJOINING LOTS ARE UNDER THE SAME OWNERSHIP. THE ACCESS TO A FILL ACTIVITY IS NOT SUBJECT TO THE SETBACK FROM PUBLIC STREET RIGHT OF WAY. 8. FILL ACTIVITY MUST BE SET BACK A MINIMUM OF 50 FEET FROM ALL NON-RESIDENTIAL PROPERTY LINES. NO SETBACK IS REQUIRED IF ADJOINING LOTS ARE UNDER THE SAME OWNERSHIP. 9. MINIMUM LOT SIZE FOR FILL ACTIVITY IS FIVE ACRES. MULTIPLE PARCELS UNDER THE SAME OWNERSHIP AND WITH THE SAME ZONING DESIGNATION MAY BE CONSIDERED AS A SINGLE LOT FOR THE PURPOSE OF ACHIEVING THE MINIMUM LOT SIZE. 10. NO FILL ACTIMTY MAY OCCUR WITHIN THE DRIP LINE OF ANY TREE. 11. THE MAXIMUM AREA FOR FILL ACTIMTY ON ANY PARCEL IN EXISTENCE ON SEPTEMBER 16, 2020 IS TWO ACRES. DETERMINING AREA FOR FILL ACTIMTY INCLUDES ALL LOCATIONS USED, OR DESIGNATED TO BE USED, FOR FILL, VEHICLE STORAGE AND VEHICLE MAINTENANCE BUT DOES NOT INCLUDE AREA USED FOR EXCLUSIVELY FOR ACCESS. 12. NOTWITHSTANDING SECTION 4.3 OF THIS CHAPTER, TREES MAY BE CUT, PROVIDED A PLAN AS REQUIRED BY SUBSECTION (B) IS SUBMITTED. HOWEVER, NO TREE OF 36 INCHES OR GREATER IN DIAMETER MAY BE CUT. 13.IF A PRIVATE STREET, SHARED DRIVEWAY OR ACCESS EASEMENT IS USED, THE APPLICANT MUST DEMONSTRATE THAT THE ACCESS IS ADEQUATE FOR THE PROPOSED ACTIVITY AND THAT THE APPLICANT HAS THE RIGHT TO USE THE ACCESS. IN ORDER FOR ACCESS TO BE DEEMED ADEQUATE, THE OWNER MUST LIMIT VEHICLES ASSOCIATED WITH THE FILL ACTIVITY TO NOT MORE THAN 56,000 POUNDS. IN ADDITION, THE ACCESS MUST MEET THE STANDARDS OF SECTION 4.6.6 OF THIS CHAPTER AND HAVE A SURFACE ADEQUATE TO ACCOMMODATE A VEHICLE WEIGHING 56,000 POUNDS. THE OWNER MAY INCREASE THE WEIGHT OF VEHICLES ASSOCIATED WITH THE FILL ACTIVITY TO A MAXIMUM OF 80,000 POUNDS, PROVIDED THAT THE ACCESS MEETS THE STANDARDS OF SECTION 4.6.6 OF THIS CHAPTER AND HAS A SURFACE ADEQUATE TO ACCOMMODATE A VEHICLE WEIGHING 80,000 POUNDS. 14. NO FILL ACTIVITY MAY OCCUR UNTIL THE VIRGINIA DEPARTMENT OF TRANSPORTATION HAS APPROVED THE ENTRANCE ONTO THE HIGHWAY. 15. EXCEPT FOR PROPERTIES ZONED RURAL AREAS (RA), VILLAGE RESIDENTIAL (Mt) OR MON110ELLO HISTORIC DISTRICT (MHD), TREE CANOPY FOR AREA(S) DISTURBED BY FILL ACTIVITY MUST BE ESTABLISHED AND MAINTAINED IN COMPLIANCE WITH SECTION 32.7.9.8 OF THIS CHAPTER. b. ANY FILL ACTIMTY WITH AN AGGREGATE AREA GREATER THAN 2,500 SQUARE FEET REQUIRES A PLAN OR NARRATIVE, SUBJECT TO THE PRIOR APPROVAL OF THE PROGRAM AUTHORITY, THAT SATISFIES THE REQUIREMENTS OF SUBSECTION (A) AND THE FOLLOWING PROVISIONS: 1. ALL MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13-301 OF THE CODE OF ALBEMARLE. BEFORE A TRANSPORTING VEHICLE LEAVES THE PARCEL OR PARCELS ON WHICH THE FILL AREA IS LOCATED, IT SHALL BE CLEANED SO THAT NO MATERIALS OUTSIDE OF THE VEHICLE'S LOAD -BED CAN BE DEPOSITED ON A PUBLIC OR PRIVATE STREET. 2. THE FILL AREA AND THE ACCESS ROADS THERETO SHALL BE TREATED OR MAINTAINED TO PREVENT DUST OR DEBRIS FROM BLOWING OR SPREADING ONTO ADJACENT PROPERTIES OR PUBLIC STREETS. 3. FILL ACTIMTY SHALL BE LIMITED TO THE HOURS OF 7:00 A.M. TO 7:00 P.M., EXCEPT IN CASES OF A PUBLIC EMERGENCY AS DETERMINED BY THE DIRECTOR OF EMERGENCY SERMCES FOR THE COUNTY. 4. FILL ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAT MAINTAINS LATERAL SUPPORT, IN ORDER TO MINIMIZE ANY HAZARD TO PERSONS PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET BECAUSE OF SLIDES, SINKING, OR COLLAPSE. 5. THE PLACEMENT OF FILL SHALL BE COMPLETED WITHIN ONE YEAR OF ITS COMMENCEMENT, EXCEPT FOR RECLAMATION ACTIMTIES AND ANY OTHER ACTIVITIES ASSOCIATED WITH THE FINAL STABILIZATION OF THE AREA. THE PROGRAM AUTHORITY MAY EXTEND THE DATE OF COMPLETION UPON THE WRITTEN REQUEST OF THE APPLICANT, DEMONSTRATING THAT FACTORS BEYOND THE CONTROL OF THE APPLICANT PREVENTED THE COMPLETION WITHIN THE ONE-YEAR PERIOD. THE PROGRAM AUTHORITY MAY THEN EXTEND THE PERMIT FOR A PERIOD OF TIME THAT, IN ITS SOLE DISCRETION, IS DETERMINED ADEQUATE TO COMPLETE THE WORK. 6. IN LIEU OF A PLAN OR NARRATIVE, THE PROGRAM AUTHORITY MAY ACCEPT A CONTRACTUAL AGREEMENT BETWEEN THE VIRGINIA DEPARTMENT OF TRANSPORTATION AND ITS CONTRACTOR FOR A PUBLIC ROAD PROJECT; PROVIDED THAT THE PROGRAM AUTHORITY DETERMINES THAT THE AGREEMENT SATISFIES AT LEAST TO AN EQUIVALENT EXTENT THE REQUIREMENTS AND INTENT OF THIS SECTION. 1992 3.31 Mulching 1. Seedings made in fall for winter cover and during hot and dry summer months shall be mulched according to MULCHING, Std. & Spec. 3.35, except that hydromulches (fiber mulch) will not be considered adequate. Straw mulch should be used during these periods. 2. Temporary seedings made under favorable soil and site cone itions during optimum spring and fall seeding dates may not require mulch. Re -seeding Areas which fail to estab ' h vegetative cover adequate to prevent rill erosion will be re- seeded as soon as such ar as are identified. TABLE 3.31-8 TEMPORARY SEEDING PLANT MATERIALS K REFERENCE FOR ALL REGIONS" Planting _Dates ISpecies Sept. 1- Feb. 15 50/50 Mix of Annual Ryegrass (Lolium multi-flonun) & Cereal (Winter) Rye (Secale cereale) Feb. 16 - Apr. 30 Annual Ryegrass (Lolium multi-florum) May 1- Aug 31 German Millet (Solaria italica) Source: Va. DSWC Rate 1 e 50 - 100 50 TABLE 3,32-D SITE SPECIFIC SEEDING MIXTURES FOR PIEDMONT AREA Total Lbs. Per Acre - Commercial or Residential 175-200 lbs. - Kentucky 1 or Turf -Type Tall Fescue 95-100% - Improved lerennial Ryegrass 0-5% - Kentucky luegrass 0-5% Hi h-Maintenance-awn 200-2501bs. - Kentucky 31 or Turf -Type Tall Fescue 100% General Slope (3:1 or le - Kentucky 31 Fescue 128 lbs. - Red Top Grass 2 lbs. - Seasonal Nurse Crop ° 20 lbs. 150 lbs. Low -Maintenance Slone (Steeper than 3.1) - Kentucky 31 Fescue 108 lbs. - Red Top Grass 2 lbs. - Seasonal Nurse Crop ' 20 lbs. - Crownvetc 20 lbs. 150 lbs. Use seasonal nurse crop in accordance with seeding dates as stated below: February 16t3 through April ............... .... Annual Rye May 1st thro gh August 15th ................ .... Foxtail Millet August 16th hrough October ................ ..... Annual Rye November t rough February 15th ................... Winter Rye " Substitute Seri a lespedeza for Crownvetch east of armville, Va. (May through September use hulled Sericea, all other periods, use unhulled Sericea). H Flatpea is used in lieu of Crownvetch, increase rate to 30lbs./acre. All legume seed must be propei ly inoculated. Weeping Lovegrass may be added to any slope or low -maintenance mix during warmer seeding periods; add 10-20 lbs./acre in mixes. DID Area (Ac) Tc (min) C value Q10 c110 DD 1 1.17 5 0.6 4.59 1 0.65' NOT TO SCALE Compacted Soil 70' MIN. FILTER CLOTH 6" MIN. I A SIDE ELEVATION .uu ❑ COURSE AGGREGATE * MUST EXTEND FULL WIDTH OF INGRESS AND EGRESS OPERATION IU SLUIMLNI B TRAPPING DEVICE PLAN VIEW FILTER CLOTH SECTION A - A 6'-7" -Flow R AI EXISTING PAVEMENT 5:1 MOUNTABLE BERM (OPTIONAL) T 10' MIN. EXISTING PAVEMENT REINFORCED CONCRETE' \ DRAIN SPACE SECTION B-B CONSTRUCTION ENTRANCE DETAIL (CE) 3.02 NOT TO SCALE CONSTRUCTION OF A SILT FENCE (WITHOUT WIRE SUPPORT) 2. EXCAVATE A 4" x 4" TRENCH 1. SET THE STAKES UPSLOPE ALONG THE LINE OF STAKES. AX 3. STAPLE FILTER MATERIAL TO STAKES AND EXTEND IT INTO THE TRENCH. SHEET FLOW INSTALLATION (PERSPECTIVE VIEW) 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. POINT A SHOULD BE HIGHER THAN POINT B. DRAINAGEWAY INSTALLATION (FRONT ELEVATION) SILT FENCE DETAIL (SF) 3.05 Not To Scale TEMPORARY SEDIMENT TRAP CALCULATIONS H Z WEIR DRAINAGE WET VOL. D1 WET VOL. DRY VOL. D2 DRY VOL. No. A B C LENGTH AREA (REQ.) (ft.) (PROV.) (REQ.) (ft.) (PROV.) (ft.) (Acres) (CY) (CY) (CY) (CY) 1 544 548 550 3.0 2.5 10.0 1.60 107.2 4.0 131.1 107.2 2.0 109.6 DRY VOLUME ID2 V RI VIIVHL LL = b GROUND ELEVATION WET VOLUME (EXCAVATED AREA) D1 EL= A CROSS SECTION OF OUTLET *NOTE: SEDIMENT TRAP SHALL NOT BE REMOVED BEFORE COUNTY INSPECTOR HAS DEEMED STABILIZED. CLASS I RIPRAP ORIGINAL GROUND ELEVATION ■ FILTER CLOTH **COARSE CLASS AGGREGATE RIPRAP WFIR I FNC;TH **COARSE AGGREGATE FILTER CLOTH EXCAVATED AREA OUTLET (PERSPECTIVE VIEW) **COARSE AGGREGATE SHALL BE VDOT #3, #357, OR #5. SEDIMENT TRAP (ST) 3.13 NOT TO SCALE DIVERSION DIKE aw V / / y O lLl x Qcm Z 2ca oD JOh N Q 0 ~� ZO (� C) z �� �cc mo (n Z oo >LL Z Liz J ac J w2 C�d�� Z o r_W Q ¢ ON W _j �I QZ ¢ N QLO Q 20 Urn O� p v \� Q V O c O LL �J LL J I Z (z) W LO 0 CM m j zo r Q W ao 0rn 0 W W ¢� �v (� W O� o d r z w �o}���yTH OF `e,G o \ Dustin E. Greene Lic. No. A.A' 55833 IF A4,PSI ONAL aim W' O LL T z w LLLL Lu U o z �' LLJ Lu > CO i Q ~ Q tL i 2i X 2 j Q Q LL DATE: 02-22-2019 SCALE: N/A JOB: FILE: 19.0377 SHEET: E / OF 02