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Home My WebLink AboutWPO202200031 Plan - VSMP 2022-08-23®NORTH SITE S "!° , VICINITY MAP SCALE: 1 "=2,000' PROJECT NARRATIVE THE OWNER IS PROPOSING THE CONSTRUCTION OF A HORSE BARN WITH PARKING AREAS AND ACCESS DRIVES. KEY MAP �G PROPOSED BARN O� C®� NORTH N eo0of 1 SCALE: 1 "=500' CASTLE ROCK FARM PHASE 1 2080 CASTLE ROCK ROAD SAMUEL MILLER DISTRICT ALBEMARLE COUNTY, VA SHEET INDEX C1.0 COVER C2.0 LAYOUT, GRADING, & EROSION CONTROL PLAN C3.0 EROSION CONTROL NOTES & DETAILS C4.0 STORMWATER MANAGEMENT PLAN LEGEND ------348----- EX. INTRMDT. CONTOUR - — — -345— — — EX. INDEX CONTOUR + 35.55 EX. SPOT ELEVATION EX. WATER LINE 8" WL 8" SAN EX. SANITARY SEWER 18"RCP EX. STORM PIPE EX. EDGE OF PAVEMENT EX. BUILDING EX. CONCRETE EX. PAVEMENT EX. GRAVEL PAVEMENT REPLACEMENT EX. POWER POLE S EX. SANITARY SEWER MANHOLE srnl EX. STORM SEWER MANHOLE co CLEANOUT EX. LIGHT POLE 1] EX. TELEPHONE G EX. GAS LINE OHU EX. OVERHEAD CABLE - X EX. FENCE r ^ EX. TREE LINE ADJOINING PROPERTY LINE PROP. INTRMDT. CONTOUR i� PROP. INDEX CONTOUR 35.55 +-�_35.05 PROP. SPOT ELEVATION 8" WL PROP. WATER LINE 8" SAN PROP. SANITARY SEWER PROP. STORM PIPE PROP. EDGE OF PAVEMENT PROP. BUILDING PROP. CONCRETE PROP. ASPHALT PAVEMENT (STANDARD/HEAVY DUTY) f PROP. GRAVEL PROP. PAVERS PROP. POWER POLE PROP. SANITARY SEWER MANHOLE SIGN ❑ WATER METER N PROP. GATE VALVE BLOW -OFF VALVE WATER LINE REDUCER G PROP. GAS LINE OHu PROP. OVERHEAD CABLE P PROP. UNDERGRND POWER LINE X PROP. FENCE ■ EXISTING ROAD MONUMENTS v _ - PROP. TREE LINE `f BENCHMARK SITE PROPERTY LINE WETLAND AREA ® INLET PROTECTION ----- RMA---- RESOURCE MANAGEMENT AREA - RPA RESOURCE PROTECTION AREA ABBREVIATIONS AHFH ARROW HEAD TOP OF FIRE HYDRANT APPROX APPROXIMATE ASPH ASPHALT BC BACK OF CURB BIT BITUMINOUS BLDG BUILDING BLK BLOCK BM BENCHMARK BVCE BEGIN VERT. CURVE ELEV BVCS BEGIN VERT. CURVE STA. BW BOTTOM OF WALL CB CINDER BLOCK C&G CURB & GUTTER CMP CORRUGATED METAL PIPE CONC CONCRETE COR CORNER DBL DOUBLE DEFL DEFLECTION DI DROP INLET DIA DIAMETER DE DRAINAGE EASEMENT ELEC ELECTRIC ELEV ELEVATION ENTR ENTRANCE EP EDGE OF PAVEMENT EVCE END VERT. CURVE ELEV. EVCS END VERT. CURVE STA. EW ENDWALL RYS REAR YARD SETBACK EXIST EXISTING SAN SANITARY FDN FOUNDATION SBL SOUTH BOUND LANE FF FINISHED FLOOR SD STORM DRAIN FG FINISH GRADE SECT SECTION GBE GRADE BREAK ELEVATION SE SLOPE EASEMENT GBS GRADE BREAK STATION SS SANITARY SEWER HOA HOMEOWNERS ASSOCIATION SSD STOPPING SIGHT DISTANCE HPT HIGH POINT SSE SANITARY SEWER EASEMENT HSD HEADLIGHT SIGHT DISTANCE STA STATION INTX INTERSECTION STD STANDARD INV INVERT STO STORAGE IP IRON PIN SYS SIDE YARD SETBACK LT LEFT TBM TEMPORARY BENCHMARK LVC LENGTH OF VERTICAL CURVE TBR TO BE REMOVED MH MANHOLE TC TOP OF CURB MIN MINIMUM TEL TELEPHONE MBL MINIMUM BUILDING LINE TRANS TRANSFORMER MON MONUMENT TW TOP OF WALL NBL NORTH BOUND LANE TYP TYPICAL PROP PROPOSED VDOT VIRGINIA DEPARTMENT OF PUE PUBLIC UTILITY EASEMENT TRANSPORTATION PVMT PAVEMENT VERT VERTICAL R RADIUS WBL WEST BOUND LANE RT RIGHT YD YARD R.O.W. RIGHT OF WAY REQD REQUIRED RR RAILROAD GENERAL NOTES 1. SITE ADDRESS: 2080 CASTLE ROCK ROAD ALBEMARLE COUNTY, VIRGINIA 2. OWNER: HOPE'S LEGACY EQUINE RESCUE AGENT: BALZER AND ASSOCIATES, INC. 5745 TAYLOR CREEK ROAD 104 INDUSTRY WAY, SUITE 102 AFTON, VA 22920 STAUNTON, VA 24401 PHONE: 434-531-5688 PHONE: 540.248.3220 CONTACT: MAYA PROULX FAX: 540.248.3221 CONTACT: WILLIAM MOORE, PE 3. USE: EQUINE CENTER 4. ZONING: RURAL AREAS 5. PARCEL ID NUMBER: 08400-00-00-05300 6. SITE AREA: 171.76 AC LIMITS OF CONSTRUCTION: 0.82 AC 7. CONSTRUCTION TYPE: USE GROUP: BUILDING AREA: 5,760 SQ. FT. TOTAL NUMBER OF STORIES: 2 BUILDING HEIGHT: 35 FT 8. TOTAL PARKING REQUIRED: N/A TOTAL PARKING PROVIDED: 9 SPACES 9. WATER: PRIVATE WELL 10. SEWER: SEPTIC 11. CONTRACTOR SHALL VERIFY LOCATION AND ELEVATION OF ALL UNDERGROUND UTILITIES. THE LOCATION OF EXISTING UTILITIES ARE NOT NECESSARILY SHOWN ON THE PLANS AND WHERE SHOWN, ARE ONLY APPROXIMATE. THE CONTRACTOR SHALL, ON HIS INITIATIVE AND AT NO EXTRA COST, HAVE LOCATED ALL UNDERGROUND LINES AND STRUCTURES AS NECESSARY. NO CLAIMS FOR DAMAGES OR EXTRA COMPENSATION SHALL ACCRUE TO THE CONTRACTOR FROM THE PRESENCE OF SUCH PIPE OR OTHER OBSTRUCTIONS OR FROM ANY DELAY DUE TO THE REMOVAL OR REARRANGEMENT OF THE SAME. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ANY DAMAGE TO UNDERGROUND STRUCTURES. CONTACT "MISS UTILITY" OF CENTRAL VA TOLL FREE 811. 12. ADDITIONAL EROSION AND SEDIMENT CONTROL MEASURES MAY BE REQUIRED AT THE REQUEST OF THE COUNTY INSPECTOR 13. NO GRAVE SITES WERE OBSERVED DURING THE SURVEY OF THE SUBJECT PROPERTY CONTAINED WITHIN THE LIMITS OF THIS PLAN. 14. PROPERTY IS LOCATED IN FEMA DEFINED ZONE W. COMMUNITY PANEL NO: 51003 C 0375 D EFFECTIVE DATE: FEB. 4, 2005. 15. PARTIAL BOUNDARY AND TOPO SURVEY PERFORMED ON PARCEL 08400-00-00-05300 BY BALZER & ASSOCIATES, DATED APRIL 7, 2022. 16. CONTOUR DATA SHOWN HEREIN IS FROM PUBLICLY AVAILABLE USDA-NRCS LIGHT DETECTION AND RANGING (LiDAR) GEOSPATIAL DATA. THIS GEOSPATIAL DATA IS UNREGULATED, AND MAY NOT MEET THE STANDARDS OF ACCURACY AS DEFINED IN THE CODE OF VIRGINIA. BALWR & ASSOCIATES PLANNERS / ARCHITECTS ENGINEERS / SURVEYORS Roanoke / Richmond New River Valley Shenandoah Valley www.balzer.cc 104 Industry Way Suite 102 Staunton, VA 24401 540.248.3220 /1L/T H 07D WILLIAM S. MOORE a Lic. No. 35223 08-23-2022AN AL J F_ U Z U 0 O (/) W\ W J U J Q � U� U om J N Q DRAWN BY CTH DESIGNED BY WSM CHECKED BY WSM DATE 06/13/2022 SCALE AS STATED REVISIONS 07/20/2022 08/23/2022 C1M0 PROJECT NO. 34210060.00 -- __790--'/// BENCHMARK010041000 - TOP REBAR ' 794- ELEV=796.00 . / , - \ LIMITS OF F/FL�,-RUN TOPOGRAPHY ------- _ (TYP) ` \ \ \ \\ \ \ \ 0000, \ 1 a low i ♦j STOCKPILE \ I 40e CPO, ♦� ■ ` / i LOD 0.82 AC 1 ♦ �� l l � / ( i i 0 9 SPAC S ,196'� ��\ ♦� y' ,Q/ � ARKIN � � ■ / I � _-/ , � / 1 � , ----- '' 3 STAGING AREA it ,' ' I40 /' ' ♦ o f� l II / i 00 7 ♦} PO S p I / 796 33 ♦♦� --------------R5' . /R1g' 100% / /* it J ,' ♦ ♦ xir l I RESERVE P/N,FLAG 794 FFE=804 794 / ' ■ , -'' 72' � ---- -_ ax --- 79 -- _ _ - 4 --------- - - /L _ PHASE 1 _ __ I 00 BFE=792 INTAKE BARN BFE=792 °S '��•/ / l l i \ / i / GRAVEL • _ _ , pS I �\ i / i ` / i r i i l /' • - SF ■x _ - \-/92-___ PLUMBING CONNECTION -- PS MU 28.50 CE 3.00, • X X X X X ♦�I Dl STRRIBUTION BOX" / MEN as .. \ / PIN FLAG - - - - - - - - - ---_ _ _ SF \NE 'BARN CORNER" ■/ \ ♦ �pZER I (TYPE Ry G/qrF SEPTIC DISTRIBUTION BOX ��k PER SOILS CONTRACT / \ g0----- ----- PROPOSED 50' WELL SETBACK /\ ,------------GRAIN — .. P/N FLAG / i\` --- -- - _FIELDS .' ,' 'SPD 3" .. ■ ■ PIN FLAGI SPD 1 _-------- i SPD 4 _ft - / " l 15"HOPE/ ; --' 780--\-- • / I—' "I,/ I i . I1VVOUT=78,84 `• r i l--_- -__ - ----� Al FLAG, / l i ��/ST/ -- ` - --' / 1 TEMPORARY STONE PROPOSE / '1� - i ECONSTRUCTION C E ♦ I ------,__ ♦ ♦-----------778------------- ------------- - ENTRANCE 0 �' WELL SITE I �C0 ,_ --- ---.' ----- i J FSS --___ - ♦ ' I --------------- __----------- i ,'-- CONSTRUCTION ROAD STABILIZATION C Q/ _--- / i 3.03 RS / - -- silk* I \40000000or \ \ 1 i /-, /--------------------------- ---' SILT FENCE 3.32 PERMANENT SEEDING PS [3.35] MULCHING BALZER & ASSOCIATES PLANNERS / ARCHITECTS ENGINEERS / SURVEYORS Roanoke / Richmond New River Valley Shenandoah Valley www.balzer.cc 104 Industry Way Suite 102 Staunton, VA 24401 540.248.3220 ,LT H OF D f WILLIAM S. MOORE a Lic. No. 35223 08-23-2022w� O"%"71ONAL ElZGl�ty DRAWN BY DESIGNED BY CHECKED BY DATE SCALE REVISIONS 07/20/2022 08/23/2022 CTH WSM WSM O6/13/2022 1 .=20' • • • • •• .-.-. _ C2m0 PROJECT NO. 34210060.00 9VAC25-840-40 MINIMUM STANDARDS A VESCP must be consistent with the following criteria, techniques and methods: EROSION CONTROL NARRATIVE 1. PROJECT DESCRIPTION: 1. Permanent or temporary soil stabilization shall be applied to denuded areas within seven days after final grade is The developer is proposing a 5,760 square foot, two story horse barn with parking areas and access drives. Total site reached on any portion of the site. Temporary soil stabilization shall be applied within seven days to denuded areas that area is 171.76 acres and total limits of construction is 0.82 acres. All water leaving the site is sheet flow, therefore may not be at final grade but will remain dormant (undisturbed) for longer than 14 days. Permanent stabilization shall be water quantity is in compliance with Virginia State Code 9VAC25-870-66(D) with a pre development 10 yr Q=1.54 cfs applied to areas that are to be left dormant for more than one year. and post development 10 yr Q=3.01 cfs. Stormwater quality compliance has been achieved through the creation of 2. During construction of the project, soil stock piles shall be stabilized or protected with sediment trapping measures. The 'off -site" Conserved Open Space as allowed in the Virginia State Code 9VAC25-870-69(A5). applicant is responsible for the temporary ry protection and permanent stabilization of all soil stockpiles on site as waII as soil intentionally transported from the project site. 2. EXISTING SITE CONDITIONS: 3. A permanent vegetative cover shall be established on denuded areas not otherwise permanently stabilized. Permanent rent) the site topography consists of heavily wooded hilltops and valleys with some gradually sloped pasture I n . vegetation shall not be considered established until a round cover is achieved that in the opinion of the local program 9 9 p P 9 0 0 The site has multiple drainage areas flowing offsite. Existing slopes range from 5 /o to 88 k. There are also existing p 9 9 9 P 9 9 administrator or his designated agent, is uniform, mature enough to survive and will inhibit erosion. homes and barns located on thisproperty. 4. Sediment basins and traps, perimeter dikes, sediment barriers and other measures intended to trap sediment shall be constructed as a first step in any land -disturbing activity and shall be made functional before upslope land disturbance 3. ADJACENT AREAS: takes place. The property is bordered to the east by Castle Rock Road and bordered to the north, west, and south by rural zoned 5. Stabilization measures shall be applied to earthen structures such as dams, dikes and diversions immediately after parcels that are vacant or contain single family homes and farm buildings. installation. 6. Sediment traps and sediment basins shall be designed and constructed based upon the total drainage area to be served 4. OFF -SITE AREAS: by trap or basin. No off -site areas are proposed with this site plan. If a borrow or waste site is needed, it shall be a permitted erosion a. The minimum storage capacity of a sediment trap shall be 134 cubic yards per acre of drainage area and the trap control site. shall only control drainage areas less than three acres. b. Surface runoff from disturbed areas that is comprised of flow from drainage areas greater than or equal to three 5. SOILS: acres shall be controlled by a sediment basin. the minimum storage capacity of a sediment basin shall be 134 cubic See Sheet C2.0 for soil boundary locations. Refer to Soil Report submitted with plans for more detailed information. years per acre of drainage area. the outall system shall, at a minimum, maintain the structural integrity of the basin during a twenty-five year storm of 24-hour duration. runoff coefficients used in runoff calculations shall correspond to 6. CRITICAL AREAS: a bare earth condition or those conditions expected to exist while the sediment basin is utilized. There are no proposed critical areas that will be created on site. 7. Cut and fill slopes shall be designed and constructed in a manner that will minimize erosion. Slopes that are found to be eroding excessively within one year of permanent stabilization shall be provided with additional slope stabilizing 7. EROSION AND SEDIMENT CONTROL MEASURES: measures until hproblem i rr easu es u t thes corrected. Unless otherwise indicated all vegetative and structural erosion and sediment control practices shall be constructed 9 8 Concentrated runoff shall not flow down cut or fill slopes unless contained within an adequate temporary permanent and maintained according to minimum standards ond specifications of the Virginia Erosion & Sediment Control channel, flume or slope drain structure. Handbook NESCH . The minimum standards of the VESCH shall be adhered to unless otherwisewaived or approved d 9. Whenever water seeps from a slope face, adequate drainage or other protection shall be provided. by a variance. The following measures are proposed: 10. All storm sewer inlets that are made operable during construction shall be protected so that sediment -laden water cannot enter the conveyance system without first being filtered or otherwise treated to remove sediment. 3.02 - Temporary Construction Entrance 11. Before newly constructed stormwater conveyance channels are made operational, adequate outlet protection and any A stone pad, located at points of vehicular ingress and egress on a construction site, to reduce the soil transported required temporary or permanent channel lining shall be installed in both the conveyance channel and receiving channel. onto public roads and other paved areas. Temporary construction entrance(s) shall be installed as indicated on the 12. When work in a live watercourse is performed, precautions shall be taken to minimize encroachment, control sediment plans. transport and stabilize the work area to the greatest extent possible during construction. Nonerodible material shall be used for construction of causeways and cofferdams. Earthen fill may be used for these structures if armored by 3.03 - Construction Road Stabilization nonerodible cover materials. Temporary stabilization, with 6" min. of 21A stone, of traffic areas right after grading to reduce erosion by vehicles 13. When a live watercourse must be crossed by construction vehicles more than twice in any six-month period, a during wet weather, and to prevent having to regrade traffic areas between initial grading and final stabilization. temporary stream crossing constructed of nonerodible material shall be provided. 14. All applicable federal, state and local regulations pertaining to working in or crossing live watercourses shall be met. 3.05 - Silt Fence Barrier 15. The bed and banks of a watercourse shall be stabilized immediately after work in the watercourse is completed. Silt fence sediment barriers will be installed down -slope of disturbed areas to filter sediment -laden runoff from sheet 16. Underground utility lines shall be installed in accordance with the following standards in addition to other applicable flow as indicated on this sheet. criteria: a. No more than 500 linear feet of trench may be opened at one time. 3.32 - Permanent Seeding b. Excavated material shall be placed on the uphill side of trenches. Establishment of perennial vegetative cover by planting seed on rough -grade areas that will not be at final grade for c. Effluent from dewatering operations shall be filtered or passed through an approved sediment -trapping device, or over a year. Permanent seeding shall be as follows: both, and discharged in a manner that does not adversely affect flowing streams or off -site property. General Slope (3:1 or flatter) lbs. per Be. d. Material used for backfilling trenches shall be properly compacted in order to minimize erosion and promote kentucky 31 fescue 128 stabilization. red top grass 2 e. Re -stabilization shall be accomplished in accordance with these regulations. seasonal nurse crop (table below) 20 f. Applicable safety regulations shall be complied with. Total = 150 17. Where construction vehicle access routes intersect paved public roads, provisions shall be made to minimize the Low Maint. Slope (3:1 or steeper) lbs. per ac. transport of sediment by vehicular tracking onto the paved surface. Where sediment is transported onto a public road kentucky 31 fescue 108 surface, the road shall be cleaned thoroughly at the end of each day. Sediment shall be removed from the roads by red top grass 2 shoveling or sweeping and transported to a sediment control disposal area. Street washing shall be allowed only after seasonal nurse crop (table below) 20 sediment is removed in this manner. This provision shall apply to individual subdivision lots as well as to larger crownvetch 20 land -disturbing activities. Total = 150 18. All temporary erosion and sediment control measures shall be removed within 30 days after final site stabilization or Seasonal Nurse Crop: after the temporary measures are no longer needed, unless otherwise authorized by the VESCP authority. Trapped Date Species sediment and the disturbed soil areas resulting from the disposition of temporary measures shall be permanently Mar. 1 - May 15 annual rye stabilized to prevent further erosion and sedimentation. May 16 - Aug. 15 foxtail millet 19. Properties and waterways downstream from development sites shall be protected from sediment deposition, erosion and Aug. 16 - Oct. 31 annual rye damage due to increases in volume, velocity and peak flow rate of stormwater runoff for the stated frequency storm of Nov. 1 - Feb. 29 winter rye 24-hour duration in accordance with the following standards and criteria. Stream restoration and relocation projects that incorporate natural channel design concepts are not man-made channels and shall be exempt from any flow rate capacity and velocity requirements for natural or man-made channels: 3.35 - Mulching a. Concentrated stormwater runoff leaving a development site shall be discharged directly into an adequate natural or Application of plant residues or other suitable material to disturbed areas to prevent erosion and reduce overland flow man-made receiving channel, pipe or storm sewer system. for those sites where runoff is discharged into a pipe or velocities. Fosters plant growth and provides insulation from heat and cold. Applied to seeded areas or disturbed pipe system, downstream stability analyses at the outall of the pipe or pipe system shall be performed. areas that cannot be seeded due to the season. b. Adequacy of all channels and pipes shall be verified in the following manner: 1.1. The applicant shall demonstrate that the total drainage are to the point of analysis within the channel is one B. MAINTENANCE: hundred times greater than the contributing drainage area of the project in question; or 1.2. (a) Natural channels shall be analyzed by the use of a two-year storm to verify that stormwater will not overtop channel banks nor cause erosion of channel bed or banks; and (b) All previously constructed man-made channels shall be analyzed by the use of a ten-year storm to verify that stormwater will not overtop its banks and by the use of a two-year storm to demonstrate that stormwater will not cause erosion of channel bed or banks; and (c) Pipes and storm sewer systems shall be analyzed by the use of a ten-year storm to verify that stormwater will be contained within the pipe or system. c. If existing natural receiving channels or previously constructed man-made channels or pipes are not adequate, the applicant shall: 1.1. Improve the channel to a condition where a ten-year storm will not overtop the banks and a two-year storm will not cause erosion to the channel bed or banks; or 1.2. Improve the pipe or pipe system to a condition where the ten-year storm is contained with the appurtenances; or 1.3. Develop a site design that will not cause the pre -development peak runoff rate from a two-year storm to increase when runoff outfalls into a natural channel or will not cause the development peak runoff rate from a ten-year storm to increase when runoff ouffalls into a man-made channel; or 1.4. Provide a combination of channel improvement, stormwater detention or other measures which is satisfactory to the VESCP authority to prevent downstream erosion. Cl. The applicant shall provide evidence of permission to make the improvements. e. All hydrologic analysts shall be based on the existing watershed characteristics and the ultimate development of the subject project. f. If the applicant chooses an option that includes stormwater detention he shall obtain approval from the VESCP of a plan for maintenance of the detention facilities. the plan shall set forth the maintenance requirements of the facility and the person responsible for performing the maintenance. g. Outfall from a detention facility shall be discharged to a receiving channel, and energy dissipators shall be placed at the ouffall of all detention facilities as necessary to provide a stabilized transition from the facility to the receiving channel. h. All on -site channels must be verified to be adequate. I. Increased volumes of sheet flows that may cause erosion or sedimentation on adjacent property shall be diverted to a stable outlet, adequate channel, pipe or pipe system, or to a detention facility. j. In applying these stormwater runoff criteria, individual lots or parcels in a residential, commercial or industrial development shall not be considered to be separate development project. instead, the development, as a whole, shall be considered to be a single development project. hydrologic parameters that reflect the ultimate development condition shall be used in all engineering calculations. k. All measures used to protect properties and waterways shall be employed in a manner which minimizes impacts on the physical, chemical and biological integrity of rivers, streams and other waters of the state. I. Any plan approved prior to July 1, 2014, that provides for stormwater management that addresses any flow rate capacity and velocity requirements for natural or man-made channels shall satisfy the flow rate capacity and velocity requirements for natural or man-made channels if the practices are designed to (i) detain the water quality volume and to release it over 48 hours; (ii) detain and release over a 24-hour period the expected rainfall resulting from the one year, 24-hour storm; and (III) reduce the allowable peak flow rate resulting from the 1.5, 2, and 10-year, 24-hour storms to a level that is less than or equal to the peak flow rate from the site assuming it was in a good forested condition, achieved through multiplication of the forested peak flow rate by a reduction factor that is equal to the runoff volume from the site when it was in a good forested condition divided by the runoff volume from the site in its proposed condition, and shall be exempt from any flow rate capacity and velocity requirements for natural or man-made channels as defined in any regulations promulgated pursuant to § 62.1-44.15:54 or 62.1-44.15:65 of the Act. m. For plans approved on and after July 1, 2014, the flow rate capacity and velocity requirements of § 62.1-44.15:52 A of the Act and this subsection shall be satisfied by compliance with water quantity requirements in the Stormwater Management Act (§ 62.1-44.15:24 et seq. of the Code of Virginia) and attendant regulations, unless such land -disturbing activities (i) are in accordance with provisions for time limits on applicability of approved design criteria in 9VAC25-870-47 or grandfathering in 9VAC25-870-48 of the Virginia Stormwater Management Program (VSMP) Regulation, in which case the flow rate capacity and velocity requirements of § 62.1-44.15:52 A of the Act shall apply, or (ii) are exempt pursuant to § 62.1-44.15:34 C 7 of the Act. n. Compliance with the water quantity minimum standards set out in 9VAC25-870-66 of the Virginia Stormwater Management Program (VSMP) Permit Regulations shall be deemed to satisfy the requirements of this subdivision 19. 3.02 - Temporary Construction Entrance The entrance shall be maintained in a condition which will prevent tracking or flow of mud onto public rights -of -way. This may require periodic top dressing with additional stone or the washing and reworking of existing stone as conditions demand and repair and/or cleanout of any structures used to trap sediment. All materials spilled, dropped, washed or traced from vehicles onto roadways or into storm drains must be removed immediately. The use of water trucks to remove materials dropped, washed, or tracked onto roadways will not be permitted under any circumstances. 3.03 - Construction Road Stabilization Both temporary and permanent roads and parking areas may require periodic top dressing with new gravel. Seeded areas adjacent to the roads and parking areas should be checked periodically to ensure that a vigorous stand of vegetation is maintained. Roadside ditches and other drainage structures should be checked regularly to ensure that they do not become clogged with silt or other debris. 3.05 - Silt Fence Barrier a. Silt fences shall be inspected immediately after each rainfall and at least daily during prolonged rainfall. Any required repairs shall be made immediately. b. Close attention shall be paid to the repair of damaged silt fence resulting from end runs and undercutting. c. Should the fabric on a silt fence decompose or become ineffective prior to the end of the expected usable life and the barrier still be necessary, the fabric shall be replaced promptly. d. Sediment deposits should be removed after each storm event. They must be removed when deposits reach approximately one-half the height of the barrier. 3.32 - Permanent Seeding In general, a stand of vegetation cannot be determined to be fully established until it has been maintained for one full year after planting. Irrigation: New seedings should be supplied with adequate moisture. Supply water as needed, especially late in the season, in abnormally hot or dry weather, or on adverse sites. Water application rates should be controlled to prevent excessive runoff. Inadequate amounts of water may be more harmful than no water. Re -seeding: Inspect seeded areas for failure and make necessary repairs and re-seedings within the same season, if possible. a. If vegetative cover is inadequate to prevent rill erosion, over -seed and fertilize in accordance with soil test results. b. If a stand has less than 40% cover, re-evaluate choice of plant materials and quantities of lime and fertilizer. The soil must be tested to determine if acidity or nutrient imbalances are responsible. Re-establish the stand following seedbed preparation and seeding recommendations. Fertilization: Cool season grasses should begin to be fertilized 90 days after planting to ensure proper stand and density. Warm season fertilization should begin at 30 days after planting. Apply maintenance levels of fertilizer as determined by soil test. In the absence of a soil test, fertilization should be as follows: Cool Season Grasses: 4 lbs. Nitrogen (N), 1 lb. Phosphorus (P), 2 lbs. Potash (K) per 1000 ft.2 per year -75% of the total requirements should be applied between Sept. 1 and Dec. 31st. The balance should be applied during the remainder of the year. More than 1 lb. of soluble nitrogen per 1000 ft.' should not be applied at any one time. Warm Season Grasses -Apply 4-5 lbs. Nitrogen (N) between May 1 and August 15th per 1000 ft.2 per year. -Phosphorus (P) and Potash (K) should only be applied according to soil test. Note: The use of slow -release fertilizer formulations for maintenance of turf is encouraged to reduce the number of applications and the impact on groundwater. 3.35 - Mulching All mulches and soil coverings should be inspected periodically (particularly after rainstorms) to check for erosion. Where erosion is observed in mulched areas, additional mulch should be applied. Nets and mats should be inspected after rainstorms for dislocation or failure. If washouts or breakage occur, re -install netting or matting as necessary after repairing damage to the slope or ditch. Inspections should take place up until grasses are firmly established. Where mulch is used in conjunction with ornamental plantings, inspect periodically throughout the year to determine if mulch is maintaining coverage of the soil surface; repair as needed. Application rate = 2 tons per acre. All mulching shall be anchored in place. 11. MANAGEMENT STRATEGIES A. Construction will be sequenced so that grading operations can begin and end as quickly as possible. B. Sediment trapping measures will be installed as a first step in grading and will be seeded and mulched immediately following installation. C. Temporary seeding or other stabilization will follow immediately after grading. Stabilization for all critical areas will consist of EC-2 lining. D. Areas which are not to be disturbed will be clearly marked by flags, signs, etc. E. The job superintendent shall be responsible for the installation and maintenance of all erosion and sediment control practices. F. After achieving adequate stabilization, the temporary erosion controls will be cleaned up and removed. 12. CONSTRUCTION NARRATIVE A. INSTALL GRAVEL CONSTRUCTION ENTRANCE AT PROPOSED ENTRANCE. ALL CONSTRUCTION TRAFFIC SHALL ENTER AND EXIT THE SITE VIA SITE CONSTRUCTION ENTRANCE ONLY. DURING WET WEATHER CONDITIONS DRIVERS OFCONSTRUCTION VEHICLES SHALL BE REQUIRED TO WASH THEIR WHEELS BEFORE ENTERING HIGHWAY. B. INSTALL TEMPORARY SILT FENCE PER PLAN, STABILIZE CONSTRUCTION ROAD, THEN START GRADING. C. ONCE FINISH FLOOR ELEVATION AND BASEMENT FLOOR ELEVATION ARE ACHIEVED, BARN CONSTRUCTION MAY BEGIN. D. AFTER BARN CONSTRUCTION HAS STARTED, PLACE PERMANENT SEEDING AND MULCH IN AREAS THAT ARE TO BE EXPOSED FOR MORE THAN 30 DAYS. E. WHEN FINAL GRADING AND STABILIZATION IS ACHIEVED, REMOVE CONSTRUCTION ENTRANCE, CONSTRUCTION ROAD STABILIZATION, AND SILT FENCE. F. INSTALL FINAL GRAVEL DRIVE. K. UPON COMPLETION OF THE PROJECT AND APPROVAL BY THE PROJECT DESIGN ENGINEER AND LOCAL OFFICIALS, THE AREA MUST BE RESTORED TO ITS ORIGINAL CONDITION. ALL ESC MEASURES ARE TO BE REMOVED FROM THE SITE, UNLESS OTHERWISE DIRECTED BY THE PROJECT DESIGN ENGINEER OR LOCAL OFFICIAL. 13. N Generalotes A. Unless otherwise indicated all vegetative and structural erosion and sediment control practiceswill be constru cted and maintained accordingto minimum standards and specifications of the Virginia Erosion and Sediment Control P 9 Handbook (VESCH) and Virginia Regulations 9VAC25-840 Erosion and Sediment Control Regulations. B. The Locality shall 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 final inspection. C. All erosion and sediment control measures will be constructed prior to or as the first step in clearing and grading. D. A copy of the approved erosion and sediment control plan shall be maintained on the site at all times. E. The Contractor is responsible for installation of any additional erosion control measures necessary to prevent erosion and sedimentation as determined by the Locality. F. 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. G. The Contractor shall inspect all erosion control measures periodically and after each run-off producing rainfall event. Any necessary repairs or cleanup to maintain the effectiveness of the erosion control devices shall be made immediately. H. The Locality shall make a continuing review and evaluation of the effectiveness of the erosion control program. The approved erosion and sediment control plan may be amended by the approving authority if on -site inspection indicates that the approved control measures are not effective in controlling erosion and sedimentation or if because of changed circumstances, the approved plan cannot be carried out. I. Properties adjoining the site shall be kept clean of mud or silt carried from the site by vehicular traffic or runoff. J. All construction traffic shall enter and exit the site via the construction entrance. K. All gravel areas shall be stabilized with base stone within 7 days of final grading. L. Contractor shall locate and verify the location of all utilities prior to beginning construction. M. The Contractor shall notify "Miss Utility" before beginning any excavation or utility work (811). STONE CONSTRUCTION ENTRANCE 70' MIN. EXISTING A 3' PAVEMENT 5:1 �� FILTER CLOTH 6" MIN. A MOUNTABLE BERM (OPTIONAL) SIDE ELEVATION EXISTING GROUND 70' MIN. 7 10' MIN. *WA 12� MIN. EXISTING q PAVEMENT VDOT #1 1� IN. COURSE AGGREGATE B TO SEDIM TRAPPING * MUST EXTEND FULL WIDTH OF INGRESS AND EGRESS PLAN VIEW OPERATION 12' MIN. . pMI . FILTER CLOTH SECTION A -A 6'-7- REINFORCED CONCRETE DRAIN SPACE SECTION B-B SOURCE: ADAPTED from 19831983 Ma�and Standards for Soil erosion and Sediment ConfrolSkndards for Soil erosion and Sediment Control, and Va. DSWC Plah 3.02-1 CONSTRUCTION OF A SILT FENCE (WITHOUT WIRE SUPPORT) 1. SET THE STAKES. 2. EXCAVATE A 4"X 4" TRENCH UPSLOPE ALONG THE LINE OF STAKES. f f FLow 3. STAPLE FILTER MATERIAL TO STAKES AND EXTEND IT INTO THE TRENCH. SOURCE: C 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. FLOW SHEET FLOW INSTALLATION (PERSPECTIVE VIEW) POINTS A SHOULD BE HIGHER THAN POINT B. DRAINAGEWAY INSTALLATION (FRONT ELEVATION) from Installation of Straw and Fabric Filter Barriers for Sediment Control VA. DSWC Sherwood and Wyant PLATE. 3.05-2 TABLE 3.35-A ORGANIC MULCH MATERIALS AND APPLICATION RATES RATES: MULCHES: NOTES: Per Acre Per 1000 sq. ft. Straw or Hay - 2 tons 70 - 90 lbs. Free from weeds and coarse (Minimum 2 tons for matter. Must be anchored. winter cover) Spread with mulch blower or by hand. Fiber Mulch Minimum 1500 lbs. 35 lbs. Do not use as mulch for winter cover or during hot, dry periods. * Apply as slurry. Corn Stalks 4 - 6 tons 185 - 275 lbs. Cut or shredded in 4-6" lengths. Air-dried. Do not use in fine turf areas. Apply with mulch blower or by hand. Wood Chips 4 - 6 tons 185 - 275 lbs. Free of coarse matter. Airdried. Treat with 12 lbs nitrogen per ton. Do not use in fine turf areas. Apply with mulch blower, chip handler, or by hand. Bark Chips or 50 - 70 cu. yds. 1-2 cu. Yds. Free of coarse matter. Airdried. Shredded Bark Do not use in fine turf areas. Apply with mulch blower, chip handler, or by hand. * When fiber mulch is the only available mulch during periods when straw should be used, apply at a minimum rate of 20001bs./ac. or 45 lbs./ 1000 sq. ft. Source: Va. DSCW Table 3.35-Al 3.35-Al BALZER & ASSOCIATES PLANNERS / ARCHITECTS ENGINEERS / SURVEYORS Roanoke / Richmond New River Valley Shenandoah Valley www.balzer.cc 104 Industry Way Suite 102 Staunton, VA 24401 540.248.3220 LT H of f H WILLIAM S. MOORE a Lic. 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No Information opment Project (Treatment Volume and Loads) Enter Total Disturbed Area (acres) � 0.82 rvrc>V open vpvice vrcv> mux ue prurcctev rn ......vnce w,m mr v,rgmm rtunun rtrvumm� nrcmuv "THE RUNOFF REDUCTION COMPLIANCE FOREST / OPEN SPACE AREA SHOWN HERE ON SHALL BE MAINTAINED IN A FOREST / OPEN SPACE MANNER UNTIL SUCH TIME THAT AN AMENDED STORMWATER MANAGEMENT PLAN IS APPROVED BY THE VSMP AUTHORITY" 8.1. CONSTRUCTION SEQUENCE FOR CONSERVED OPEN SPACE AREAS THE CONSERVED OPEN SPACE MUST BE FULLY PROTECTED DURING THE CONSTRUCTION STAGE OF DEVELOPMENT AND KEPT OUTSIDE THE LIMITS OF DISTURBANCE ON THE EROSION AND SEDIMENT (E&S) CONTROL PLAN. • NO CLEARING, GRADING OR HEAVY EQUIPMENT ACCESS IS ALLOWED EXCEPT TEMPORARY DISTURBANCES ASSOCIATED WITH INCIDENTAL UTILITY CONSTRUCTION, RESTORATION OPERATIONS OR MANAGEMENT OF NUISANCE VEGETATION. • THE PERIMETER OF THE CONSERVED OPEN SPACE SHALL BE PROTECTED FROM CONSTRUCTION SEDIMENT BY SUPER SILT FENCE, SINCE THE AREA IS DOWN GRADIENT FROM AREAS OF CONSTRUCTION. • THE LIMITS OF DISTURBANCE SHOULD BE CLEARLY SHOWN ON ALL CONSTRUCTION DRAWINGS AND IDENTIFIED AND PROTECTED IN THE FIELD BY ACCEPTABLE SIGNAGE, AND CHAIN LINK FENCE, ORANGE SAFETY FENCE, SNOW FENCE OR OTHER PROTECTIVE BARRIER TO KEEP UNNECESSARY CONSTRUCTION ACTIVITY OUT OF THE AREA. a in cells constant values calculation cells Check: BMP Design Specifications List: 2013 Draft Stds & Specs Unearproject? No Land cover areas entered correctly? ✓ Total disturbed area entered? ✓ TP LOAD REDUCTION NOT REQUIRED NOTES: 1. THE SITE AREA USED IN THESE CALCULATIONS CONSISTS OF 0.82 ACRES REPRESENTING THE LIMITS OF DISTURBANCE AND 2.00 ACRES OF CONSERVATION AREA. WATER QUANTITY COMPLIANCE: IN ACCORDANCE WITH 9 VAC25-870-66(D). ALL RUNOFF FROM THE SITE HAS BEEN CONVERTED TO SHEET FLOW; THEREFORE, NO FURTHER WATER QUANTITY CONTROLS ARE REQUIRED. WATER QUALITY COMPLIANCE: TO ACHIEVE WATER QUALITY STANDARDS, A TOTAL OF 1.18 LBS OF PHOSPHOROUS IS REQUIRED TO BE TREATED. A TOTAL OF 1.18 LBS WAS ACHIEVED THROUGH THE USE OF CONSERVED OPEN SPACE. 5_1 A SPECIFIC PLAN SHOULD BE DEVELOPED TO MANAGE THE UNINTENDED CONSEQUENCES OF PASSIVE RECREATION, CONTROL INVASIVE SPECIES, PROVIDE FOR TREE AND UNDERSTORY MAINTENANCE, ETC. MANAGED TURF IS NOT CONSIDERED AN ACCEPTABLE FORM OF VEGETATIVE MANAGEMENT, AND ONLY THE PASSIVE RECREATION AREAS OF DEDICATED PARKLAND ARE ELIGIBLE FOR THE PRACTICE (E.G., THE ACTIVELY USED PORTIONS OF BALL FIELDS AND GOLF COURSES ARE NOT ELIGIBLE), ALTHOUGH CONSERVATION AREAS CAN BE IDEAL TREATMENT PRACTICES AT THE EDGES OF TURF -INTENSIVE LAND USES. •• • .• 120 1 :• • LEGEND: PRE IMPERVIOUS = 0.02 AC PRE PERVIOUS = 2.80 AC W W W W POST IMPERVIOUS = 0.39 AC W POST PERVIOUS = 0.43 AC W W W W POST OPEN SPACE = 2.00 AC II THE SWM FOREST AND OPEN SPACE EASEMENT IS SUBJECT TO THE GUIDANCE SET FORTH BY DEQ IN THE VIRGINIA STORMWATER MANAGEMENT PROGRAM. THE AREAS WILL REMAIN UNDISTURBED IN A NATURAL, VEGETATED STATE, EXCEPT FOR ACTIVITIES AS APPROVED BY THE LOCAL PROGRAM AUTHORITY, SUCH AS FOREST MANAGEMENT, CONTROL OF INVASIVE SPECIES, REPLANTING AND REVEGETATING, PASSIVE RECREATION (E.G., TRAILS), AND LIMITED BUSH HOGGING TO MAINTAIN DESIRED VEGETATIVE COMMUNITY (BUT NO MORE THAN FOUR TIMES A YEAR). BALAMR & ASSOCIATES PLANNERS / ARCHITECTS ENGINEERS / SURVEYORS Roanoke / Richmond New River Valley Shenandoah Valley www.balzer.cc 104 Industry Way Suite 102 Staunton, VA 24401 540.248.3220 .LT H 07, Y WILLIAM S. MOORE Lic. No. 35223 08-23-2022AN AL = Z a Q 1 � I.L LU Q LL �/L.IrrI `J Z U Q O n/ LLU WQ Q¢ J &� U Z O /w' _/ U Jw J Q O U< U �./ ) U om J N Q DRAWN BY CTH DESIGNED BY WSM CHECKED BY WSM DATE 07/20/2022 SCALE 1"=60' REVISIONS 08/23/2022 C4.l PROJECT NO. 34210060.00