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Home My WebLink AboutWPO201600052 Plan - Other (not approved) 2022-03-01V5MF AMENDMENT FOR LEGEND EXIST NEW DESCRIPTION 165TG x 125TC TOP OF CURB ELEVATION 16° x 121 SPOT ELEVATION 165TW x 12'TW TOP OF WALL ELEVATION 16'BW x 12'BW BOTTOM OF WALL ELEVATION IS BENCHMARK STORM SEWER RD - ROOF DRAIN -=- SEWER LINE -s-w- a"W WATER LINE -GAS- GAS GAS LINE - WE- GHE OVERHEAD ELECTRIC WIRE -UGE- -UGE- UNDERGROUND ELECTRIC - W - - OHT - OVERHEAD TELEPHONE LINE - UGT - - GGr - UNDERGROUND TELEPHONE LINE D F!1 DRAIN INLET (DI) ® O STORM/SANITARY MANHOLE C C PLUG ®"� ® WATER VALVE & BOX ♦ FIRE HYDRANT ® ® WATER METER ♦� LIGHT POLE f f UTILITY POLE PROPERTY LINE ADJACENT PROPERTY LINE VACATED PROPERTY LINE BUILDING SETBACK PARKING SETBACK SANITARY EASEMENT --"'- GRADING EASEMENT DRAINAGE EASEMENT UTILITY EASEMENT WATER EASEMENT ACCESS EASEMENT STORM DRAINAGE EASEMENT TREE LINE FENCE STREAM - 312- - 12 - INTERVAL CONTOUR 300 - oo - INDEX CONTOUR CG-2 CG-2 STANDARD 6" CURB CG-6 CG-6 COMBINATION 6" CURB & GUTTER CONCRETE PAVEMENT / SIDEWALK RIPRAP ASPHALT GRASS EC-2 MATTING EC-3 MATTING WETLAND m ° PARKING COUNT - CROSSWALK HANDICAP ACCESSIBLE AISLE ® CG-12 & (�, HANDICAP PARKING 2300 HUNTER5 WAY WFO 201 G00052 -AMENDMENT I TAX MAP 07800-00-00-049AO 5COTT5VILLE DISTRICT, ALBEMARLE COUNTY, VIRGINIA VICINITY MAP ccill F:. oi,,=oi nnny ,I10 llll SetfersonP'f 17T7 liensene ra zsa � 1107 y s�e�Fsx`e transportation UPS Customer Center ■ -department m Richrnond RdS SITE d6, m IMAGE PROVIDED BY GOOGLE MAPS SHEET INDEX C I - COVER SHEET C2 - EROSION CONTROL NARRATIVE C3 - EXISTING CONDITIONS C4 - SITE * UTILITY PLAN C5 - GRADING PLAN CG - EROSION CONTROL PLAN C7 - FINAL SWM LAYOUT C8 - EROSION CONTROL DETAILS C9 - SWM DETAILS CIO - SWM CACLULATIONS OWNER / DEVELOPER Heartrock Farm, LLC. 2521 Summit Ridge Trail Charlottesville, VA 22911 PROPOSED USE Ex. Vehicle Repair Shop: 3,300 SF with Additional Off Street Parking New Drive-Thru Coffee Shop: 520 SF No Public Restrooms in building. Drive-thru has single lane, window faces away from Public Streets. New 2-Story Retail Building (Hardware): 5200 SF (4200 SF Sales Area) with Additional Off Street Parking LAND USE SCHEDULE EXISTING Area % Buildings 6,250 SF 9.84% Pavement 15,908 SF 25.0% Sidewalk 3,252 SF 5.11% Impervious area 25,410 SF 39.95% Open space 38,202 SF 60.05% Total= 63,612 SF (1.46 ac.) PROPOSED Area % Buildings 6,420 SF 10.1% Pavement 22,093 SF 34.7% Sidewalk 3,865 SF 6.1% Impervious area 32,378 SF 50.9% Open space 31,234 SF 49.1% Total= 63,612 SF (1.46 ac.) DISTURBED AREA = 0.70 ACRES GENERAL CONSTRUCTION NOTES 1. Prior to an construction within an existing public right-of-way,includin connection to an existing road a permit shall be Y Y 9 P 9 Y 9 � 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). 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 a 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 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% 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 repaired 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 commenced. (Water Protection Ordinance section 17-207B) PLAN NOTES: Boundary & Topographic survey information provided by: Roger W. Ray & Associates Original Survey Completed June 29, 2015. Updated with as -built information February 13, 2018. UNDERGROUND DETENTION MAINTENACE 1. Inspect weir plate orifices, trash racks, and welds seasonally. Remedy any clogs or failures, and replace orifice trash rack if damaged or malfunctioning. 2. Inspect general system debris accumulation once every 2 years. If debris or sediment is noticed, clean out system by hand or with a vac -truck using access risers. U Lic. NOTE: 1. THE SIZE OF THE SYMBOLS MAY VARY FROM WHAT IS SHOWN. PROJECT DESCRIPTION, GENERAL NOTES, EROSION & SEDIMENT CONTROL NOTES, AND SEQUENCE OF CONSTRUCTION PROJECT DESCRIPTION THIS PROJECT IS AN EXPANDED DEVELOPMENT OF A LOT ON HUNTERS WAY IN ALBEMARLE COUNTY CONTAINING TWO MODEL HOMES AND AN AUTO REPAIR SHOP. A DRIVE-THRU COFFEE SHOP AND A RETAIL BUILDING SHALL BE ADDED TO THE LOT. THE TOTAL AREA OF DISTURBANCE IS 0.70 ACRES. THE PROJECT INVOLVES THE FOLLOWING WORK ACTIVITIES: 1. THE CONTRACTOR SHALL OBTAIN ALL LOCAL AND STATE EROSION AND SEDIMENT PERMITTING REQUIREMENTS AND MAINTAIN ALL EROSION AND SEDIMENT CONTROLS IN ACCORDANCE WITH THE PERMIT REQUIREMENTS. 2. INSTALLATION OF PERMANENT STORMWATER MANAGEMENT MEASURES AS SHOWN ON THE PLAN AND DETAILS. 3. GRADING AND AND CONSTRUCTION SHALL BE IN ACCORDANCE WITH THE SITE PLAN. 4. ESTABLISHMENT OF PERMANENT STABILIZATION OF ALL DISTURBED AREAS. EXISTING SITE CONDITIONS THE SITE IS CURRENTLY A DEVELOPED LOT WITH TWO MODEL HOMES AND PARKING. THE LOT DRAINS TO A CONCRETE DITCH ALONG THE EASTERN EDGE OF THE PROPERTY. ALL RUNOFF FROM THE SITE FLOWS TO A CONCRETE CULVERT THAT RUNS UNDER THE HUNTERS WAY ROAD. CONSTRUCTION RUNOFF WILL BE MANAGED USING INLET PROTECTION, SILT FENCING, AND THE EXISTING CURB AND GUTTER THAT WILL TRAP SEDIMENT WITHIN THE LIMITS OF DISTURBANCE. ADJACENT PROPERTIES THIS PROPERTY IS BORDERED TO THE NORTH AND EAST BY THE HUNTER'S WAY RIGHT OF WAY, TO THE SOUTH BY THE RICHMOND ROAD RIGHT OF WAY, AND TO THE WEST BY A PARCEL WITH A DAYCARE FACILITY. OFFSITE AREAS: THERE ARE NO OFFSITE AREAS. SOILS THE SITE CONTAINS THE FOLLOWING SOIL TYPE: 72C3- RABUN CLAY - 7 TO 15% SLOPES, HSG B CRITICAL AREAS THERE IS 1 AREA ON THIS SITE WITH CRITICAL EROSION CONCERNS WITHIN THE LIMITS OF DISTURBANCE. THIS IS THE CRITICAL SLOPES ALONG RTE 250 NEAR THE PROPOSED RETAINING WALL. EROSION ON THESE AREAS WILL BE MANAGED BY THE USE OF SILT FENCING. THE CONTRACTOR SHALL TAKE ADDED CARE TO CONTROL EROSION IN THESE AREAS. EROSION & SEDIMENT CONTROLS 1. CONSTRUCTION ENTRANCE: INSTALL AND MAINTAIN A CONSTRUCTION ENTRANCE, AS NECESSARY, THAT MEETS THE REQUIREMENTS OF STD. AND SPEC. 3.02 AND CONFORMS WITH THE REQUIREMENTS OF THE EROSION & SEDIMENT CONTROL PLAN. 2. SILT FENCE: INSTALL AND MAINTAIN SILT FENCE THAT MEETS THE REQUIREMENTS OF STD. AND SPEC. 3.05. THIS SILT FENCE SHALL BE INSTALLED AS SHOWN ON THE EROSION & SEDIMENT CONTROL PLAN AND ACCOMPANYING DETAILS FOR THE PURPOSE OF INTERCEPTING SILT -LADEN RUNOFF BEFORE IT IS DISCHARGED FROM THE SITE. THE SILT FENCE SHALL BE INSPECTED AND MAINTAINED TO ENSURE CONTINUED PERFORMANCE. 3. RIGHT-OF-WAY DIVERSION: A RIDGE OF COMPACTED SOIL OR LOOSE GRAVEL CONSTRUCTED ACROSS A DISTURBED RIGHT-OF-WAY OR SIMILAR SLOPING AREA TO SHORTEN THE FLOW LENGTH WITHIN THE DISTURBED STRIP AND DIVERT THE RUNOFF TO A STABILIZED OUTLET. EARTHEN DIVERSIONS ARE APPLICABLE WHERE THERE WILL BE LITTLE OR NO CONSTRUCTION TRAFFIC WITHIN THE RIGHT-OF-WAY, AND GRAVEL STRUCTURES ARE APPLICABLE WHERE VEHICULAR TRAFFIC MUST BE ACCOMMODATED. STD. AND SPEC. 3.11. 4. TEMPORARY SEEDING: TEMPORARY SEEDING SHALL BE APPLIED TO ALL DENUDED AREAS WITHIN SEVEN (7) DAYS TO DENUDED AREAS THAT MAY OR MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. TEMPORARY SEEDING SHALL BE APPLIED IN CONFORMANCE WITH STD. AND SPEC. 3.31. 5. PERMANENT SEEDING: PERMANENT SEEDING SHALL BE APPLIED TO AREAS DELINEATED ON THESE PLANS WITHIN SEVEN (7) DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. PERMANENT SEEDING STABILIZES DISTURBED AREAS AND ENHANCES THE BEAUTY OF THE SITE. 6. MULCHING: APPLICATION OF PLANT RESIDUES OR OTHER SUITABLE MATERIALS TO THE SOIL SURFACE TO PREVENT EROSION AND FOSTER THE GROWTH OF VEGETATION. ORGANIC MULCHES (STRAW) HAVE BEEN FOUND TO BE THE MOST EFFECTIVE. 7. DUST CONTROL: CONDUCT DUST CONTROL OPERATIONS NECESSARY TO MET THE REQUIREMENTS OF STD. & SPEC. 3.39 AS REQUIRED TO CONTROL SURFACE AND AIRBORNE MOVEMENT OF DUST. 8. INLET PROTECTION: INLET PROTECTION MEASURES AROUNF THE NEW INLETS SHALL BE PROVIDED IN ACCORDANCE WITH STD. AND SPEC. 3.07. SILT FENCE, STRAW BALES OR TEMPORARY STONE APPLICATIONS SHALL BE APPLIED AS APPROPRIATE FOR CURRENT GRADE CONDITIONS. PERMANENT STABILIZATION AND SEQUENCE OF CONSTRUCTION THE FOLLOWING ARE THE PROPOSED MANAGEMENT STRATEGIES AND DETAILED SEQUENCE OF CONSTRUCTION: STAGE 1 1. THE EXISTING ENTRANCE SHALL BE USED AS THE PAVED CONSTRUCTION ENTRANCE. PROVIDE WASHHOSE IF REQUIRED BY INSPECTOR. 2. INSTALL SILT FENCE AND PERIMETER CONTROLS. 3. USE EXISTING PARKING AS STAGING AREA. ASPHALT SHALL REMAIN DURING GRADING AND CONSTRUCTION UNTIL SITE AREA IS STABILIZED. 4. INSTALL RIGHT-OF-WAY DIVERSIONS AND INLET PROTECTION AT THE LOCATIONS SHOWN ON THE EROSION & SEDIMENT CONTROL PLAN. STAGE 2 CONTACT THE ENGINEER AND ALBEMARLE COUNTY FOR INSPECTION AND APPROVAL OF ALL E&S CONTROL MEASURES. STAGE 3 1. UPON APPROVAL OF ALL E&S CONTROL MEASURES, BEGIN CONSTRUCTION. 2. AFTER UPSTREAM AREA IS STABILIZED WITH BASE STONE, INSTALL THE NEW DETENTION PIPES BELOW THE DRIVE-THRU TRAVELWAY AND CONNECT TO THE EXISTING MANHOLE AS SHOWN IN THE PLANS. 3. MAINTAIN NECESSARY INLET PROTECTION AT THE LOCATIONS SHOWN ON THE PLAN. 4. FINISH SITE GRADING AND INSTALLATION OF ALL OTHER UNDERGROUND UTILITIES. 5. INSPECT BOTH EXISTING AND NEW DETENTION PIPES AND CLEAN OUT ANY SEDIMENT BUILDUP. STAGE 4 ESTABLISH AND MAINTAIN PERMANENT STABILIZATION, INCLUDING VEGETATION OF ALL SLOPES AND GRASSED AREAS. CONSTRUCTION MAINTENANCE THE FOLLOWING CONSTRUCTION MAINTENANCE PRACTICES SHALL BE FOLLOWED AT THE SITE. 1. ALL E&S CONTROL MEASURES WILL BE CHECKED DAILY AND AFTER EACH SIGNIFICANT RAIN EVENT. ALL DEFICIENCIES IDENTIFIED DURING THESE INSPECTIONS SHALL BE CORRECTED AS SOON AS PRACTICABLE. 2. THE SILT FENCE BARRIER SHALL BE REGULARLY CHECKED FOR UNDERMINING, DETERIORATION OR SIGNIFICANT EROSION. SEDIMENT SHALL BE REMOVED AFTER EACH STORM EVENT AND WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHES HALF THE HEIGHT OF THE CONTROL. 3. THE CONTRACTOR IS RESPONSIBLE FOR ADHERING TO ALL MAINTENANCE REQUIREMENTS SET FORTH IN THE CURRENT EDITION OF THE VIRGINIA SEDIMENT AND EROSION CONTROL MANUAL, OTHER APPLICABLE COMMONWEALTH OF VIRGINIA REGULATIONS AND THE PROJECT SPECIFICATIONS. 4. ALL SEEDED AREAS WILL BE REGULARLY CHECKED TO ENSURE THAT A GOOD STAND OF GRASS IS MAINTAINED. 5. AREAS WITH RIP -RAP SHOULD BE REGULARLY INSPECTED TO DETERMINE IF HIGH FLOWS HAVE DAMAGED THESE CONTROLS OR CAUSED EXCESSIVE SEDIMENT DEPOSITION. ALL AREAS SHALL BE MAINTAINED IN ACCORDANCE WITH THE REQUIREMENTS OF THIS E&S CONTROL PLAN. ENVIRONMENTAL CONTROLS 1. CONTRACTOR SHALL PROVIDE AND MAINTAIN ALL ENVIRONMENTAL CONTROL MEASURES SO AS TO COMPLY WITH LOCAL ORDINANCES, STATE AND FEDERAL LAWS AND REGULATIONS APPLICABLE TO WATER POLLUTION IN WATERS OF THE STATE AND IN INTERSTATE WATERS. 2. CONTRACTOR SHALL MINIMIZE THE POTENTIAL FOR AIR POLLUTION BY THE USE OF EMISSION CONTROL EQUIPMENT ON CONTRACTOR OPERATED EQUIPMENT, SHUT -DOWN OF MOTORIZED EQUIPMENT WHEN NOT IN USE, AND ACTIVELY CONTROLLING DUST EMISSIONS THROUGHOUT THE PROJECT. EROSION & SEDIMENT CONTROL PERMITTING CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING ALL LOCAL AND STATE EROSION AND SEDIMENT CONTROL PERMITS AND MAINTAINING ALL EROSION AND SEDIMENT CONTROLS IN ACCORDANCE WITH THE PERMIT REQUIREMENTS. GENERAL NOTES 1. THE INFORMATION AND DATA SHOWN OR INDICATED WITH RESPECT TO THE EXISTING UNDERGROUND UTILITIES AT OR CONTIGUOUS TO THE SITE ARE BASED ON INFORMATION AND DATA FURNISHED TO THE OWNER AND ENGINEER BY THE OWNERS OF SUCH UNDERGROUND FACILITIES OR OTHERS. THE OWNER OR ENGINEER SHALL NOT BE RESPONSIBLE FOR THE ACCURACY OR COMPLETENESS OF SUCH INFORMATION OR DATA. THE CONTRACTOR SHALL HAVE FULL RESPONSIBILITY FOR CONFIRMING THE ACCURACY OF THE DATA, FOR LOCATING ALL UNDERGROUND UTILITIES, FOR COORDINATION OF THE WORK WITH OWNERS OF SUCH UNDERGROUND UTILITIES DURING CONSTRUCTION, FOR THE SAFETY AND PROTECTION THEREOF AND REPAIRING ANY DAMAGE THERETO RESULTING FROM THE WORK. ALL OF THESE CONDITIONS SHALL BE MET AT NO ADDITIONAL COST TO THE OWNER. THE CONTRACTOR SHALL CONTACT "MISS UTILITIES" OF VIRGINIA AT 1-800-552-7001 PRIOR TO THE START OF WORK. 2. WHEN WORKING ADJACENT TO EXISTING STRUCTURES, POLES, UTILITIES, ETC., THE CONTRACTOR SHALL USE WHATEVER METHODS THAT ARE NECESSARY TO PROTECT STRUCTURES FROM DAMAGE. ANY DAMAGE CAUSED BY THE CONTRACTOR OR ITS SUBCONTRACTORS SHALL BE THE CONTRACTOR'S SOLE RESPONSIBILITY TO REPAIR OR REPLACE. THIS EXPENSE IS THE CONTRACTOR'S RESPONSIBILITY. 3. REPLACEMENT OR REPAIR OF DAMAGED STRUCTURES SHALL BE AT THE CONTRACTOR'S EXPENSE. 4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROTECTING ALL EXISTING SITE STRUCTURES FROM DAMAGE AND COORDINATING WORK SO THAT THE OWNER CAN MAKE NECESSARY ARRANGEMENTS TO MODIFY/PROTECT EXISTING STRUCTURES FROM DAMAGES. 5. THE CONTRACTOR SHALL BE RESPONSIBLE FOR NOTIFYING ALL UTILITY OWNERS, ADJACENT LAND OWNERS WHOSE PROPERTY MAY BE IMPACTED AND THE VIRGINIA DEPARTMENT OF TRANSPORTATION PRIOR TO COMPLETING ANY OFF -SITE WORK. 6. CONTRACTOR SHALL NOTIFY AND COORDINATE ALL WORK INVOLVING EXISTING UTILITIES WITH UTILITY OWNERS, AT LEAST 72 HOURS PRIOR TO THE START OF CONSTRUCTION. 7. ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA STANDARDS FOR THE CONSTRUCTION INDUSTRY (29 CFR PART 1926). 8. THE CONTRACTOR SHALL VERIFY THE LOCATIONS OF ALL BOUNDARIES, BUILDINGS, VEGETATION, AND OTHER PERTINENT SITE ELEMENTS. CONTRACTOR SHALL IMMEDIATELY REPORT ANY DISCREPANCIES BETWEEN EXISTING CONDITIONS AND CONTRACT DOCUMENTS TO THE OWNER AND ENGINEER. 9. CONTRACTOR SHALL SUBMIT FOR THE APPROVAL OF THE OWNER SUBMITTALS OF ALL SPECIFIED MATERIALS LISTED IN THE PLANS, TO INCLUDE SHOP DRAWINGS, MANUFACTURER'S SPECIFICATIONS AND LABORATORY REPORTS. THE OWNER'S APPROVAL OF SUBMITTALS WILL BE GENERAL AND WILL NOT RELIEVE THE CONTRACTOR FROM THE RESPONSIBILITY OF ADHERENCE TO THE CONTRACT AND FOR ANY ERROR THAT MAY EXIST. 10. CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING ALL NECESSARY PERMITS, INSPECTIONS, BONDS, AND OTHER RELATED ITEMS IN ACCORDANCE WITH LOCAL AND STATE POLICY. STORMWATER MANAGEMENT: 1. ALL CONCENTRATED ONSITE RUNOFF SHALL BE ROUTED INTO CHANNELS AT RATES THAT COMPLY WITH 9VAC25-870-66-B(3). SINCE RUNOFF FROM THIS SITE MEETS THE ENERGY BALANCED EQUATION, NO DOWNSTREAM ANALYSIS IS REQUIRED. 2. ONSITE RUNOFF SHALL BE MANAGED USING 2 UNDERGROUND DETENTION SYSTEMS. 3. THE SITES WATER QUALITY REQUIREMENTS WILL BE ADDRESSED WITH THE PURCHASE OF 0.26 LBS OF PHOSPHOROUS NUTRIENT CREDITS TO SATISFY THE NUTRIENT LOAD REDUCTION AS SET FORTH BY THE DEQ IN THE VIRGINIA STORMWATER MANAGEMENT PROGRAM. THIS AMOUNT WAS CALCULATED BY SUBTRACTING THE NUTRIENT CREDITS ORIGINALLY PURCHASED FOR WPO2O16OOO52 IN 2017 FROM THE NEW VRRM REDEVELOPMENT SPREADSHEET FOR THIS AMENDMENT. TOTAL TO PURCHASE: 0.84 LBS NEW AMOUNT MINUS 0.58 LBS PREVIOUSLY PURCHASED = 0.26 LBS REQUIRED. SEE SWM CALCULATIONS AND RESULTS ON SHEET CIO. MINIMUM STANDARDS (MS) All applicable Virginia Erosion and Sediment Control Regulations and Minimum Standards shall be adhered to during all phases of construction. These include, but are not limited to the following: 1. STABILIZATION OF DENUDED AREAS: Permanent or temporary soil stabilization shall be applied to bare areas within 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 final grade, but will remain dormant or undisturbed for longer than 30 days. Permanent stabilization shall be applied at areas that are to be left dormant for more than 1 year. 2. STABILIZATION OF SOIL STOCKPILES: During construction of the project, soil stockpiles shall be stabilized or protected with sediment trapping measures. The applicant is responsible for temporary protection and permanent stabilization of all soil stockpiles on site as well as soil intentionally transported from the project site. 3.PERMANENT VEGETATIVE COVER A permanent vegetative cover shall be established on denuded areas not otherwise permanently stabilized. Permanent vegetation shall not be considered established until a ground cover is achieve that, in the opinion of the county Inspector, is uniform and mature enough to survive to inhibit erosion. 4. TIMING & STABILIZATION OF SILT TRAPPING MEASURES: 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 takes place. 5. STABILIZATION OF EARTHEN STRUCTURES: Stabilization measures shall be applied to earthen structures such as dams, dikes and diversions immediately after installation. 6. SEDIMENT TRAPS AND BASINS: A sediment basin shall control surface runoff from disturbed areas that is comprised of flow from drainage areas greater than or equal to three acres. The sediment basin shall be designed and constructed to accommodate the anticipated sediment loading for the land disturbing activity. The outfall device or system device shall take into account the total drainage area flowing through the disturbed area to be served by the basin. 7. CUT AND FILL SLOPES: 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 measures until the problem is corrected. & CONCENTRATED RUN-OFF DOWN CUT OR FILL SLOPES: Concentrated runoff shall not flow down cut or fill slopes unless contained within an adequate temporary or permanent channel, flume, or slope drain structure. 9.WATER SEEPS FROM A SLOPE FACE: Whenever water seeps from a slope face, adequate drainage or other protection shall be provided. 10.STORM SEWER INLET PROTECTION: 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. 11. STABILIZATION OF OUTLETS: Before newly constructed stormwater conveyance channels are made operational, adequate outlet protection and any required temporary or permanent channel lining shall be installed in both the conveyance channel and receiving channel. 12. WORK IN LIVE WATERCOURSES: When work in a live watercourse is performed, precautions shall be taken to minimize encroachment, control sediment transport and stabilize the work area to the greatest extent possible during construction. Nonerodible material shall be used for the construction of causeways and cofferdams. Earthen fill may be used for these structures if armored by nonerodible cover materials. 13.CROSSING A LIVE WATERCOURSE: When a live watercourse must be crossed by construction vehicles more than twice in any six month period, a temporary stream crossing constructed of nonerodible materials shall be provided. 14. APPLICABLE REGULATIONS: All applicable federal, state and local regulations pertaining to working in or crossing live watercourses shall be met. 15.STABILIZATION OF BED AND BANKS The bed and banks of a watercourse shall be stabilized immediately after work in the watercourse is completed. 16.UNDERGROUND UTILITIES: Underground utilities shall be installed in accordance with the following standards in addition to other criteria: o.No more than 500 linear feet of trench may be opened at one time. b.Excavated material shall be placed on the uphill side of trenches c.Effluent for dewatering operations shall be filtered or passed through approved sediment trapping device, or both, and discharged in a manner that does not adversely affect flowing streams or offsite property. d.Material used for backfilling trenches shall be properly compacted in order to minimize erosion and promote stabilization. e.Restabilization shall be accomplished in accordance with these regulations. f. Applicable safety regulations shall be complied with. 17.CONSTRUCTION ACCESS ROUTES: Where construction vehicle access routes intersect paved public roads, provisions shall be made to minimize the transport of sediment by vehicular tracking onto paved surfaces. Where sediment is transported on to a public road surface, the road shall be cleaned thoroughly at the end of each day. Sediment shall be removed by shoveling or sweeping and transported to a sediment control disposal area. Street washing shall be allowed only after sediment is removed in this manner. This provision shall apply to individual lots as well as to larger land disturbing activities. 18.TEMPORARY E&S CONTROL MEASURE REMOVAL: All temporary erosion and sediment control measures shall be removed within 30 days after final site stabilization or after temporary measures are no longer needed, unless otherwise authorized by the local program authority. Trapped sediment and the disturbed soil areas resulting from the disposition of temporary measures shall be permanently stabilized to prevent further erosion and sediment. 19. ADEQUACY OF RECEIVING CHANNELS: Properties and waterways downstream from the development site shall be protected from sediment deposition, erosion and damage, due to increases in volume, velocity and peak flow rates of stormwater runoff for the stated frequency storm of 24-hour duration. 1H o O , � U l SHIMP 9 Lic. o.4 183 O rS)nvAt �� T.M. 76-49B LOT 2B I IRISH CAVILIERS PROPERTIES, LLC USE -BRIGHT EYES COMMUNITY CHILD CARE CENTER PAVED CURRENT ZONING -HIGHWAY COMMERCIAL,ENTRANCE CORRIDOR I D.B. 4482-425 D.B. 1235-5 PLAT x MAILBOX \I30 417.23 WALNUT I # 2374 A V A = 370 � \ I \ II I \ II GRASS \\ \ \ \ � \\ I II GRASS II �I \ \ I • I / 1 / / / \ \ / �, \Q'� \ \ LSCGL,' BRICK \ I I \ X I X X \ \i� SIGN \\ \\ \ V I V A\ \ _X _X —X I X I I DX / I RED GL ON �i \ I 15- DBL/ V V I `.. I / I. 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ALL ITEMS d > BEHIND CURB TBR. m :\.:.: /EX V ......::::. "`Y ° / �Dos Q po ... '''''''''''''''''.o ..89 dZ o........ ..................... 90 ......................................................: .:::.............(o....:..::............ SEPTIC � 6'BW BO .6) FHA . ..(d NN ........................... ......... 9 S .;.;.;.;S.......'.......Iof Lf) .... ................. �� ......D................`..........s... ..�,;........... ''\..................IBRICK _3g6 SIGN ......n :::::Privat:::::::::::::::::::DmNI Ee SIGN 6•BW 6w.oWWLA DSCPIN N... .�..�'''''' s 76pr3 STORM PIPE (TYP.) TOREMAIN. - 6'BW ...\N ... 38SOLS ' ' ''' OH \ ....................... OHU o .HU O v. In=3R.04 .. .... '.....OHU ........\ DIN �\ Inv. Out=374�0 000 coNc DITc 70 ACLMITS OF DISTURBANCE I 3� A=89°59'50" IP-11=70.46 0=362.53R=40.00' STOP L=6283' SIGN 10 T=4000' � C=56.57/ �IRON �=54°07'16" �T x sT R\=220.00'CB=S51°57'44"W 506°57'49"W 102.72'— INV °UT= L r207.8 INV NC DIT _ 375.50 . IN= JHO 355.86 GONG DITCH > C=�200.. � -� \ \ \ / PAVED — I _ EX. ROAD C4 I 2 I I I I \ \ \ NC OkiGN �nDI-38 \ \ ] e \ \ / YW� O i X. 15" GONG PIPE SIGN RHO GO UPS 37107 _ INVEOUT— — — — — DROP —nFII10—RHO—RHO ON / 359.91 EX. ENTRAN� 370.96 INV OUT 37 38 RHO UTILITY � UTILITY INV T= Box BOX / OUI 355.06 I OVERLAND FLOW DIRECTION O l7mp� Li . o.4 183 0 `r'y1r rAI. 6� I 1 OHU-0 U—OHU — I ASSUMED 30' VEPCO EASEMENT — OHU I H0 0 � t1HO I 0 I 0 i I I V 30, S' FACILI EASEME I c SEPTIC PUMPI � I PUMP II i l STANIK� I I I I ? I -t— II I I I II I II INLET 4: NYLOPL/LST 4 LF a 2x2 INLET H DRAINI GFj I II \ EASEM T \ I c I OHU i OHU F I I �o O 0�0 C O co�`Q� �j oJ�Qi FACILITY e... ... EASEMENT .... . '. ... ... ... , 0 .. �► d ////.G�/� i T.M. 78-49B LOT 2B IRISH CAVILIERS PROPERTIES, LLC USE -BRIGHT EYES COMMUNITY CHILD CARE CENTER CURRENT ZONING -HIGHWAY COMMERCIAL,ENTRANCE CORRIDOR 1 D.B. 4482-425 D.B. 1235-5 PLAT x 1 1 x 1 1 x 1 \ x X —x _X —x —X —X —x —X LIMITS OF DISTURBANCE �_s —s gg � —S s —S S S s s S S s s S S —s —s SAN F RCE MAI mmm —,G;s s — �— — 's / SEPTIC ........._.................'.—.'.'.'.'.'.'6s.s'.'.'.'.'.'.'.'.'.'.' .d % % DISTRIBUTOI' a<. ........... ......................... J. Cogs d / 2 OOQ/ SF ...................'.'I..'..'..'..'..'..'..'..'..'..'.'...:,, .........:. a / / :o• 9/9tPOUT ..:.:.EA:SEMEN.T........................................................ ::............. AUTO REPAIR .,.. .' .' as SHOP HVAC AND MECHANICAL .' ' ' .I. '. '. I FFE=390.0 cn EQUIPMENT ON ROOF "' "' ... .......... ',... ................................. " .. 4" TRENCH DRAIN ................................ . RETAILBLDG ......I..,...,...,...,...,...,...,...,..... ,.....,.......... ....,...,...,...,...,...,...,I..,......................... . 3160 SF FOOTPRINT °',a < ............ . ..'.I ,. d a, 2 STORIES+BASEMENT "' '..'. .'..'................ d :1 USES: HARDWARE STORE ............................... .'.'.z'.'.'.'.'.'.'.'.".'.'.'.'.'.'.'.'.'.'.'.'.'.'.'.'.'.'.'.'.'.'.'.'.'.'.'.'.'.'.'.'. .�....................... ..... ... Q (BASEMENT+FLOOR 1) .I. 'd t SMALL OFFICE (FLOOR 2) .a°,• .'. . . o '. FFE=386.33 .. .... ..... ..'. .... 4 Ba li d EXIS.T.' ASPH AC7.......'.'.'.. .'.'.'.'.'.'.'.'.'.'.'.'.' ............................................... . 'N:.:...:.:.:.... .. .........................I:.;...;...;...;.:.;...;...;.:.;.:.;....'..'...'.'.'.'.'.'. '. 1- HIGHEST BOTTOM OF d I'I FOOTER ELEVATION IN ,, I ., ., I,. ,. DASHED AREA=473.00 °^ ................... ...L' .., . . '.rNCET.'.2 . '.' . . . . '..'.'.'.'.'.'.'.'.'.'.'.'...'.'.'.'.'.'.'.'.'.'.'.'.'.'..... . . a ............ .' J NEW 30' SWM " HDPE DRAIN ' J NEW PUBLIC DRAINAGE EASEMENT coNc DITCH CONC i �AVEo � EX. ROAD CL OOpC p1jCH / / DI-38 i 1001, 371.07 370.38 370.96 INV OUT= 366.17 PAVED \e A Lic . sf-llmp 9 �.4 183 2v 22 cv FAT 051I N 0 A M- N I I I I � I I I UVga UNOWHOI(\J I I I I I I � i _ I - 370 I I -OHU-0 U-OHU I i I / I - OHO � t1H0JO \ p1jON \ j / 01-3" \ ] 371.07 / - 370.38 N OUT= 366.17 SOIL EROSION & SEDIMENT CONTROL SYMBOLS SYMBOL N0. TI T LE KEY x—x—x—x 3.39 CONSTRUCTION ENTRANCE CE CONSTRUCTION ROAD STABILIZATION CRS SILT FENCE SF INLET PROTECTION IP RIGHT OF WAY DIVERSION W SAFETY FENCE SA TEMPORARY SEEDING TS PERMANENT SEEDING PS MULCH MU DUST CONTROL DC LIMITS OF DISTURBANCE OVERLAND FLOW DIRECTION �f 0 U J SITImp 9 Lic. 0.4 183 � 212v 22 Q� 0 Q i00 m m VOW — 37O / INV / N= 355.E / INV OUT= 355.06 20 0 20 40 60 T.M. 78-49B LOT 2B IRISH CAVILIERS PROPERTIES, LLC USE -BRIGHT EYES COMMUNITY CHILD CARE CENTER CURRENT ZONING -HIGHWAY COMMERCIAL,ENTRANCE CORRIDOR D.B. 4482-425 D.B. 1235-5 PLAT \ 1 GONG .07 PAVED smmp Y Lic, o.4 183 2IZv 22 q� GRAVEL CURB INLET SEDIMENT FIL TER * GRAVEL FILTER RUNOFF WATER _mm SEDIMENT J CONCRETE GUTTER SPECIFIC APPLICATION WIRE MESH FILTERED WATER I� CURB INLET THIS METHOD OF INLET PROTECTION IS APPLICABLE AT CURB INLETS WHERE PONDING IN FRONT OF THE STRUCTURE IS NOT LIKELY TO CAUSE INCONVENIENCE OR DAMAGE TO ADJACENT STRUCTURES AND UNPROTECTED AREAS. * GRAVEL SHALL BE VDOT #3, #357 OR 5 COARSE AGGREGATE )INLET PROTECTION (IP C$ Not To Scale DRIP LINE SNOW FEN BOARD FEN fL CORD FENCE r� CORRECT TRUNK ARMORING TRIANGULAR BOARD FENCE 2 Tree Protection ProteCtion Fence�TP) C$ Not To Scale PERMANENT SEEDING SPECIFICATIONS February 16 through April 30 Kentucky 31 Fescue — 128 lbs/acre; Red Top Grass — 2 lbs/acre; Annual Rye — 20 lbs/acre. Add 20 lbs/acre Indian grass when slopes are greater than 3: 1. May 1 through August 15: Kentucky 31 Fescue — 128 lbs/acre; Red Top Grass — 2 lbs/acre; Foxtail Millet — 20 lbs/acre. Add 20 lbs/acre Indian grass when slopes are greater than 3: 1. August 16 through October 31: Kentucky 31 Fescue — 128 lbs/acre; Red Top Grass — 2 lbs/acre; Annual Rye — 20 lbs/acre. Add 20 lbs/acre Indian grass on slopes greater than 3: 1. November 1 through February 15: Kentucky 31 Fescue — 128 lbs/acre; Red Top Grass — 2 lbs/acre; Winter Rye — 20 lbs/acre. Add 20 lbs/acre Indian grass on slopes greater than 3: 1. MULCHING SPECIFICATIONS Straw or hay at a rate of 2 tons/acre. Must be anchored. Spread with mulch blower or by hand. LIME AND FERTILIZER SPECIFICATIONS: Lime and fertilizer needs should be determined by soil tests. Soil tests may be preformed by the Cooperative Extension Service Soil Testing Laboratory at VPI&SU, or by a reputable commercial laboratory. Information concerning the State Soil Testing Laboratory is available from CITY Extension Agents. Under unusual conditions where it is not possible to obtain a soil test, the following soil amendments will be applied: For Permanent Seeding: Seeded areas shall be limed at a rate of 2 tons per acre, and fertilized at a rate of 1,000 lbs. per acre of 10-20-10 (10 lbs. per 1,000 square feet) or equivalent. For Temporary Seeding: Seeded areas shall be limed at a rate of 2 tons per acre, and fertilized at a rate of 600 lbs. per acre of 10-20-10 (10 lbs. per 1,000 square feet) or equivalent. PERMANENT SEEDING (PS Not To Scale TYPICAL GRAVEL STRUCTURE 4:)RIGHT—OF—WAY DIVERSION (FWD) C$ ) Not To Scale Scale CONSTRUCTION OF A SILT FENCE (WITH WIRE SUPPORT) 1. SET POSTS AND EXCAVATE A 4"X4" 2. STAPLE WIRE FENCING TO THE POSTS. TRENCH UPSLOPE ALONG THE LINE OF POSTS. r� FLOW 3. ATTACH THE FILTER FABRIC TO THE WIRE FENCE AND EXTEND IT INTO THE TRENCH. 0000, FLOW 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. 5 V5ILI Ff C$ Not To Scale r•:�iari N��Yrr:i�rrr��iar��rr:r��ya� STONE CONSTRUCTION ACCESS —� STONE CONSTRUCTION ACCESS -\ 70' MIN. 3" SM-2A ASPHALT TOP COURSE 2% 2% �6" M.N. 2'A AGUR=GATE BASE PROFILE 70' MIN. ASPHALT PAVED WASHRACK V 2% E 1 2% 2% 12MIN.* r *MUST EXTEND FULL WIDTH LSO—POSIT'VF DRAINAGE OF INGRESS AND EGRESS OPERATION PLAN 12' MIN. EXIST(N PAVEMF%I-' POSITIVE DRAINAGE TO SEDIMENT TRAPPING DEVICE FILTER CLO-III - SECTION A -A A nnini nini water tap of 1 inch must be installed with a nlinllirunm 1 inch ballcock slurtoff value supplying a wash hose tirith a diameter of 1.5 inches for adequate constant pressure. Nash water must be carried away Ilonm the entrance to an approved Settling area to remove seduueut. All sednnett shall be prevented from entering storm drains, ditches or watercourses. PAVED WASH RACK 0 SC- I 1992 3.35 Source: Va. DSWC TABLE 335-A ORGANIC MULCH MATERIALS AND APPLICATION RATES RATES: MULCHES: NOTES: per Acre Per 1000 sq. ft. Straw or Hay 1� - 2 tons 70 - 90 lbs. Free from weeds and coarse (Minimum 2 matter. Must be anchored. tons for Spread with mulch blower winter cover) or by hand. Fiber Mulch Minimum 35 lbs. Do not use as mulch for 1500 lbs. winter cover or during hot, dry periods.` Apply as slurry. Corn Stalks 4 - 6 tons 185 - 275 lbs. Get 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 I85 - 275 lbs. Free of coarse matter. Air- dried. 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 50 - 70 cu. 1-2 cu. yds. Free of coarse matter. Air - or yds. dried. Do not use in fine Shredded turf areas. Apply with Bark 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 2000 lbs./ac or 45 lbs./1000 sq. ft. 6 PAVED CONSTRUCTION ENTRANCE PCE 9 MULCHING MU C$ Not To Scale C$ Not To Scale TABLE 3.39-A ADHESIVES USED FOR DUST CONTROL Water Application Dilution Type of Rate Adhesive (Adhesive: Water) Nozzle Gallons/Acre Anionic Asphalt Emulsion 7:1 Coarse Spray 1,200 Latex Emulsion 12.5:1 Fine Spray 235 Resin in Water 4:1 Fine Spray 300 Acrylic Emulsion (Non -Traffic) 7:1 Coarse Spray 450 Acrylic Emulsion (Traffic) 3.5:1 Coarse Spray 350 )DUST CONTROL (DC C$ Not To Scale TABLE 3.31-C TEMPORARY SEEDING PLANT MATERIALS, SEEDING RATES, AND DATES m w w SEEDING RATE NORTH° SOUTHb PLANT 3/1 5/1 8/IS 915 5/1 9/1 SPECIES CHARACTERISTICS Acre 1000 fl� to to m to m to 4/30 8/IS ]I/1 d130 9/1 11/IS OATS 3 bu. (up to 100 lbs., 216s. X - - X - - Dse spring varieties (e.g., Noble). (puma eadva not less duo SO Its.) RYE4 2 bu. (w to IlO lbs., 2.5 Ibs. X - X X - X U. for hm fell seedinge, wintu Seu a careen not leas duo SO lbs.) cover. Tolemtea mld end low moisture. GERMAN M[LLET SO lbs. approx. 1 It. - X - - X - Wazm-eusoe annual. Dies at find (Beterie iWical frvat. May be addW to summer mixes. ANNUAL RYEGRASS` b01ba. 1'A Ibs. X - X X - % May be added m mixes. Will (Lolium �Iti-Florvml vww mt of most erode. WEEPING IS lbs. SVe X - - X - Warm-xewn perennial. May LOVEGRASS beach. Tolerates hot, dry slopes Emervelis curvula and acid, infertile it.. May be °dried to mixes. KOREAN 25 Pat. approx. 1'A X X - % X - Warm season annual legume. LESPEDEZA` IM. Tolemles acid roils. May be laodem f ulacea addM m mixes. ° Northern Piedmont and Mountain region. See Plates 3.22-1 and 3.22-2. b Southern Piedmont and Coastal Plain. ` May be used as a cover crop with spring seeding. d May be used as a cover Crop with fall seeding. X May be planted between Nese dates. - May nil be planted between these dates. $TEMPORARY SEEDING (TS C $ Not To Scale PERSPECTIVE VIEW PERSPECTIVE VIEW PLASTIC FENCE SOURCE: CONWED PLASTICS VDOT ROAD AND BRIDGE STANDARDS VA. DSWC PERSPECTIVE VIEW METAL FENCE 4 SAFTY FENCE SAF C$ Not To Scale PLATE. 3.1 —1 61 2 N N w a H > N Iv � J N j z F Q F 0 w J tt Q N 0 IHQP o �.p �f x Uo l SHIMP 9 Lic. o.4 183 O C ssi!'RtTAt. s+� Date 01 /03/2019 Scale Sheet No. C8 OF 10 File No. 16.003 COUNTY OF ALBEMARLE Department of Community tkvelopment Construction Record Drawings (As -built) for VSNW The following is a list of information required on construction record drawings for stormwater facilities (reference Water Protection Ordinance 17422). 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 gm -coordinates of all facilities. 4. Verified Drainage Area maps for the drainage area treated, and for drainage to the facilities. 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 scaled 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 casements. 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 report% and materials certifications. Biofjlter media must be an approved state min. 13. Access roads — show location of access roads, surface treatment, drainage, etc, as applicable. 14. Compaction reports are require! to verify fill compaction in dams. 15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning. — — 395 Ei 1 36" ACCESS RISER W.- 390 385 :1 1 365 1 STONE BACKFILL POLYPROPYLEN (PP) CAP 380 1 1 16.bU LF 15 47 CIO IF 355 e 11 1 1 11 / ICE _ 1 �Tr 'i �:_ irr■fit .-.. tiz-_•.-+•-1:� ••1 ■��I:r .• nl ANEW STORM SEWER PROFILE C9 SCALE: HORIZ 1 =30 VERT 1 =10 MINIMUM 1' COVER EX. GRADE / PROP. GRADE ill �.-�.- • .III #57 GRAVEL BEDDING. WIDTH PER MANUFACTURER. MINIMUM EXPECTED 9' WIDTH. 2 NEW DETENTION DETAILS C9 SCALE: 1 =5 epee o ee eeo oe oo e000pae .a °tea°oo°oo oo°000 oee eso e 1.f,f»,•�Itl New Trash Rack � 1" Holes I 30% Opening Area 1 i OOOOOO 0 0 O O O \Oc)� O 0 O 0 O 0 OOOOOOO / O0O0O0 O0 0O inlfifr. r.....r.r r..rr 6" 6" AMP TRASH RACK Front Section Side Section TRASH RACK DETAIL Cg SCALE: 1 =5 60" HIGH — STRENGTH PP DETENTION PIPE EL=372.50_ _ INV=369.50_ REINFORCED STEEL PLATE OR EQUIVALENT. WATERTIGHT ATTACHMENT DESIGN BY PIPE MANUFACTURER. 2.5" ORIFICE WITH 9" TRASH RACK 3 WEIR PLATE DETAIL C9 SCALE: 1 =5 � Illtl•N °uaur al VlxxrY I/i pl.te rnd .rnlin[ .uM1 1" M1nlr+ un.l n min. ..( INS nl n u11Le•,•Iv Ilr • rM1nr11 l.11i xpliVrlxl 1'Ixfx .v ..0 Illq•H . rn nl[P�VAI. 1/ - X6nrr xrnA r Iln, �9L 1' IInN• arrJ n n Iui rfnr eA Irl 1'N.rrin� Inllnn- lug. nr r.Iwl I'IASTIC euLrnuss I•11 ""•'"" �c5 I IN I'° nn NYLO�S rn 12x2 1 E /QED I ° CD o I0 I I ° I I I NEW PUBLI DRAINAG \k EAS �I 14 L I> 1 ° 4 TRENCH DRAIN 1 I ad O I WEIR PLATE 3' FROM END CAP aq� NEW 30 SWM FACILITY EASEMENT II I� I I I I MH QP= � 374.9 11=370.46 �362.53i � 5 DETENTION PIPE PLAN DETAIL C9 Scale: 1"=10' IH� o U l �. SM Lic. 0.4 183); 0 � `rS)n�vst 0 5 TURF IMP 45 TURF IMP I IMP TURF J \ o I 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I \ a / 30 0 30 60 90 S-C 1 30 eel LY'LYY JNYINIICICNCI 1111CI MYIII YlYNY113LJYY "UNIM1 3 VVOY I IIIICl3 YIN VNIYYC Willy 00y IIIICl3 Willy C C g o ate, E @ o w U �' Z' 2 o rn S 5 '$ .`Q m m w a m v 0 �m i 90 Q S o ¢ U - a O a f U a U y a° a a U O 1 2 3 d 5 6 8 9 10 11 12 13 16 16 16 1] 18 19 20 21 22 23 2A 25 'S1 And W Bypass Floes included in Inlet Caleulabon LD-229 Storm Drain Design Computations Hunters Way From To Catch. Runoff Increment Accum. Total Total Total up Down Pipe Invert Pipe Pipe Velocity Flow time Structure Structure Area Coef AC AC To Intensity I Flow I Invert I Invert I Length I Slope I Diameter I Capacity Increment Det. 1 Ex. 3' - - Ex.3 Ex. 2- - - - - - - - - - 1.09 1.09 378.22 374.60 377.04 370.46 61.1 50.8 1.93 % 8.16% 15 15 9.7 20.0 5.2 8.7 0.19 0.10 Inlet Det.2 0.21 0.8 0.17 0.17 5.0 6.81 1.16 370.00 369.50 13.9 3.60% 15 13.3 6.7 0.03 Det. 2 Ex. 2' - - - - - - 2.04 368.5 367.5 35.93 2.78 % 15 11.7 7.2 0.08 Ex. 2 Ex. 1* - - - - - - 3.13 362.53 357.15 53.2 10.12 % 15 22.3 12.80 0.07 "Note: flow computed from HydnoCAD nesaer�� nore� s to Informat on Post-0evel opment Prole ft (Treatment Volume and loads) a rn�x� �pl,�rta�a R Na 1 [� xmbsutremm•e �• J I e:l nreeMe.� TreeM•en1 VUWmeena Xalu lLovl su ms .rc Ph „ wa1 Ilia IY3 HUNTER'S WAY POST -DEVELOPMENT VRRM MAP POSTDEV SITE AREA 0.74 ACRES IMP, HSG B 0.72 ACRES TURF, HSG B PER VRRM SPREADSHEET V3, 0.84 LBS OF TP LOAD REDUCTION IS REQUIRED. 0.58 LBS HAS BEEN PURCHASED TO SATISFY WPO 2016-52. OWNER SHALL PURCHASE 0.26 LBS OF PHOSPHOROUS CREDITS FROM AN APPROVED NUTRIENT BANK. 2300 Hunters Way Energy Balance Equation 24 Hr 1 year Storm: Qdevelol I.F.'x(Qpre-developed*RVPm-Develwed)/RVdeveloped Qdeveloped5(Qfomsted*RVfomsted)/RVdeveloped Disturbed Area = 0.7ac I.F.= 0.9 QPre-developed = efs RVpip_Developad = aC-ft QDeveloped Max =Cf5 RVDeveloped = ae-ft Achieved Post-Dev Peak Runoff Q1yr = 0.60 cfs. Site complies with 9VAC25-870-66-B(3)a 10-YEAR STORM: Qpre=5.30 efs Qpost=2.96 efs Site complies with 9VAC25-870-66-C(2)b HUNTER'S WAY -x Tx -x �_x -x Lx �x / / / PRE -DEVELOPMENT \ DRAINAGE MAP 90 0\ 1 i I OPEN i / Z \ III / S�ACE _ vI / I g I IMPERVIOUS \ / I AREA 00\ \ I I \ ®INV WT�8I2.B5 eA IA\ I I I I I I I , A V I V �� `� V\•.��' /i'i/ 1 \vv�/OJ�O \\ \ \\\ \\ \\\ \\\ \ II \I \ \\ o > so \ ` ------ \ \ DRAINAGE TO POA i _ _ -- - - - 0.32 AC IMP 0.79 AC TURF, 0.35 AC WOODS -' POINTOF ANALYSIS *ALL SOILS ARE HSG B 1 I I / 1 I �� \ \ \ RUNOFF TO POA TOC MAX = 8 MIN / ' ' I 1-YEAR FLOW = 1.34 CFS, 0.075 AF 30 0 30 60 90 10-YEAR FLOW = 5.30 CFS SCALE: 1" = 30 I1 \\ \\ \ \ \\ \\ ::I':::: ( 9 .. .'.\': .• .': .•.'. :•.•.•. '.': .' ::.".: .. \ e ::. �::::::::::::::::::::...... ............................. ........................ ..::ti: L:::' .................�........... ............ 1::::'.::.'::. __. .... _..... y...... 0:.' INLET I -4 ----- ` ------ - W F \ , INLET I000 DRAINAGE INl F� _ W - Z AREA 4 DRAINAGE AREA 3 - - TG ARIEA 2 f us -\\----- i (UNCHAIN 01 all W no IN HUNTER'S WAY POST -DEVELOPMENT DRAINAGE MAP 1•::. 1::..F .. ,DRAINAGE TO POA ..6.... ......:..V;/zDA 1 = 0.13 AC TURF, 0.03 AC IMP :.:: I \ •DA 2 = 0.14 AC IMP 3 \ - ...:::::'::::: o `\ FDA 3 = 0.06 AC TURF, 0.39 AC IMP 82 / POINT OF ANALYSIS ---ie---I--T--+--�- I M. \ / / , z / LIc 30 0 30 60 90 i I SCALE: 1 " = 30 r ,_ FDA 4 = 0.02 AC TURF, 0.18 AC IMP LBYPASS = 0.50 AC TURF, 0.02 AC IMP -DRAINAGE TO BMPS DETENTION 1 = 0.79 AC TOTAL (0.19 AC TURF, 0.60 AC IMP) DETENTION 2 = 0.15 AC TOTAL (0.02 AC TURF, 0.13 AC IMP) *ALL SOILS ARE HSG B RUNOFF TO POA TOC MAX = 10 MIN 1-YEAR FLOW = 0.60 CFS, 0.151 AF 10-YEAR FLOW =2.92 CFS, MEETS ENERGY BALANCE EQUATION LIMIT OF 0.60 CFS 4 N N w a > N w � J z m W QF �o w J tt a N 0 TH Qp �'GA U ] SI-IIMP 9 Lic. o.4 183 j2v�2'L�� 0 A `fShxtret �� z 0 �Lr w1 ialial Z 0 U O LL J Z J LU a 0 � O W J Date 01 /03/2019 Scale Sheet No. C10 OF10 File No. 16.003