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HomeMy WebLinkAboutWPO202200028 Plan - VSMP 2023-03-17LEGEND EXISTING NEW DESCRIPTION BOUNDARIES BENCHMARK SITE PROPERTY LINE - - - - ADJACENT PROPERTY LINE BUILDING SETBACK PARKING SETBACK SITE TEXT 101 10 PARKING COUNT TOPOGRAPHY INDEX CONTOUR INTERVAL CONTOUR 5 X1m SPOT ELEVATION �11-L TC x1 TOP OF CURB ELEVATION I W X >i1- TOP OF WALL ELEVATION 11. 3VV X >�'- BOTTOM OF WALL ELEVATION - ...-... - STREAM STREAM BUFFER 100 YEAR FLOODPLAIN BUILDING BUILDING RETAINING WALL STAIRS EDGE OF PAVEMENT ROAD CENTERLINE FRONT OF CURB BACK OF CURB CG-12 TRUNCATED DOME SIDEWALK BIKE PARKING HANDICAP ACCESSIBLE AISLE L� HANDICAP PARKING l� MATERIAL CONCRETE RIPRAP ASPHALT EC-2 MATTING ! EC-3 MATTING WETLAND TREELINE X FENCE UTILITY UTILITY POLE GUY WIRE sHu OHU OVERHEAD UTILITY UGU UNDERGROUND UTILITY STORM STORM MANHOLE q DROP INLET STORM SEWER ROOF DRAIN o AenTAnv S W O 0 t A NOTE: 1. THE SIZE OF THE SYMBOLS MAY VARY SANITARY MANHOLE SANITARY SEWER MAIN SANITARY SEWER LATERAL WATER WATER LINE WATER METER WATER METER VAULT FIRE HYDRANT FIRE DEPARTMENT CONNECTION GAS GAS LINE EASEMENTS CONSTRUCTION GRADING ACCESS SIGHT DISTANCE UTILITY STORMWATER FACILITY MAINTENANCE STORMWATER ACCESS DRAINAGE SANITARY WATERLINE GASLINE FROM WHAT IS SHOWN. OWNER/DEVELOPER Rivers Edge Holdings LLC & Rivers Edge Associates LLC 2027 Woodbrook Court Charlottesville VA, 22901 PLAN PREPARATION Shimp Engineering, P.C. 912 East High Street Charlottesville, VA 22902 (434)227-5140 ZONING Planned Residential District ZMA201800018 approved on August 5, 2020 SP201800023 approved on August 5, 2020 Airport Impact Area, Dam Break Inundation Zone (State), Entrance Corridor, Steep Slopes - Managed & Preserved STEEP SLOPES DISTURBANCE NOTES The property is subject to SP2018-23 approved on August 5, 2020. Per SP2018-23, a maximum area of 39,100 SF of preserved slopes disturbance is permitted. Approximately 27,254 SF of disturbance is proposed with this SDP submission. See C6 for exhibit of disturbance. MAGISTERIAL DISTRICT Rivanna SOURCE OF TITLE DB 1528 PG 326 DB 2987 PG 423 BUILD -TO LINES Per approved ZMA201800018, residential build -to lines are provided as follows: 50' from US Route 29 5' from parking areas, travelways, accessways, and pedestrian paths BUILDING HEIGHT Per approved ZMA201800018, maximum building height is 35'. BUILDING FOOTPRINT AREA Per approved ZMA201800018, maximum building footprint area = 60,000 SF (48,934.5 SF Provided) SOURCE OF BOUNDARY AND TOPOGRAPHY Boundary provided by plat of record Road topographic survey provided by: Roger W. Ray & Associates, Inc. 663 Berkmar Court Charlottesville, VA 22901 September 11, 2018 Two (2) foot contours provided by: LIDAR, Virginia Information Technologies Agency & Virginia Geographic Information Network BENCHMARK Datum for topography is NAVD 88 Site Benchmark Elevation: 396.48 Iron & Cap Located in Route 29 median. FLOODZONE According to FEMA Flood Insurance Rate Map, effective date February 4, 2005 (Community Panel 51003CO286D), this property is located within a Zone AE 100-year floodplain. RESERVOIR WATERSHED This site is within the North Fork Rivanna Watershed. This site is not within a watershed of a public water supply. WATER & SANITARY SERVICES Site is served by ACSA public water and sewer. GENERAL CONSTRUCTION NOTES 1. Prior to an construction within an existing right-of-way,includin connection to an existing road a permit shall be obtained Y Y 9 9 Y 9 � 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 the 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 acheived. 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 WATER & SEWER NOTES 1. Work shall be subject to inspection by Albemarle County Service Authority inspectors. The Contractor will be responsible for notifying the proper service authority officials at the start of the work. 2. The location of existing utilities across the line of the proposed work are not necessarily shown on the plans and where shown, are only approximately correct. The contractors shall on his own initiative locate all underground lines and structures as necessary. 3. All materials and construction shall comply with the current edition of the general water and sewer construction specifications as adopted by the Albemarle County Service Authority. 4. Datum for all elevations shown in National Geodetic Survey. 5. The contractor shall be responsible for notifying "MISS UTILITY" (1-800-552-7001). 6. All water and sewer pipes shall have a minimum of 3.5 feet of cover measured from the top of pipe, over the centerline of pipe. This includes all fire hydrant lines, service laterals and water lines, etc. 7. All water and sewer appurtenances are to be located outside of roadside ditches. 8. Valves on deadend lines shall be rodded to provided adequate restraint for the valve during a future extension of the line. 9. Trees are not permitted in the ACSA easement. 10. The contractor shall be responsible to comply with the no -lead regulation regarding brass fittings effective January 4, 2014 (Senate Bill 3874 which amends the Safe Drinking Water Act). 11. All public water and sewer facilities shall be dedicated to the Albemarle County Service Authority. 12. Backf ow prevention is required for all connections to the water main. ADDITIONAL NOTES 1. The Albemarle County Building Inspections Department (ACBID) does a visual inspection and witnesses the testing of the building drain, water service pipe and the sprinkler lead-in connection. 2. The developer/contractor is responsible to retain a Special Inspector as outlined in the updated Albemarle County Policy for Site Utilities to perform the visual inspection and testing of all utilities not covered by the ACSA or ACBID. This included building sewers, water and fire line branches between the main and the meter(s) / building(s). 3. The Special Inspector's report must be submitted and approved by the Albemarle County Engineering Department prior to a Certificate of Occupancy being issued. ITE TRIP GENERATION AM PM Daily Use Description ITE Qty In Out Total In Out Total Total Multifamily Housing 221 51 5 14 19 14 10 24 43 (Mid -Rise) EXISTING USE Single Family Residential PROPOSED USE 34 Multi -Family Buildings w/ 32 @ 3 stories = 96 units 1 unit per story 2 @ 2 stories = 4 units 960 SF per unit Total = 100 units Gross Density = 100/32.52 = 3.07 DUA Per ZMA 201800018 - Maximum GFA Per Unit = 50 units: 1,200 SF (max) + 50 units: 900 SF (max) LAND USE SCHEDULE EXISTING Area % Building 17,989 SF 1.3% Pavement 57,665 SF 4.1 % Sidewalk 8518 SF 0.6% Impervious Total 84,172 SF 5.9% Managed Turf 140,354 SF 9.9% Open Space 1,192,045 SF 84.2% Total= 1,416,571 SF (32.52 ac.) PROPOSED Area % Building 42,670 SF 3.0% Pavement 152,308 SF 10.8% Sidewalk 17,450 SF 1.2% Impervious Total 212,428 SF 15.0% Managed Turf 266,643 SF 18.8% Open Space 937,500 SF 66.2% Total= 1,416,571 SF (32.52 ac.) PARKING SCHEDULE Multi -family units: 2 spaces/unit = 200 required 200 spaces provided LIGHTING Lighting shall comply with Section 4.17 of the Albemarle County Zoning Ordinance. LANDSCAPE Landscape shall comply with Section 4.32.7.9 of the Albemarle County Zoning Ordinance. RECREATION Recreation shall comply with Section 4.16 of the Albemarle County Zoning Ordinance. Per the approved ZMA201800018, natural alternatives may replace minimum facilities as required by Section 4.16.2, to be approved by the director of planning and community development. Total recreational area is 18,257 SF of natural playscape area with approximately 3,617 LF of walking trails SIGNS All signs and pavement shall conform with the latest edition of the MUTCD Guidelines. A sign permit must be issued in accordance with the Albemarle County Sign Regulations prior to placement of any signs on -site. Contractor shall provide handicap signs as shown on plan. 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 an 9 9 � Y P P 9 Y 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 workingadjacent to existing structures poles, etc. the contractor shall use whatever methods that are necessary to 1 9 � P rY protect structures from damage. Replacement of damaged structures shall be at the contractor's expense. ense. 9 P 9 P 3. 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. 4. 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. 5. Contractor shall notify and coordinate all work involving existing utilities with utility owners, at least 72 hours prior to the start of construction. 6. Contractor shall immediately report any discrepancies between existing conditions and contract documents to the owner and engineer. 7. 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 the contractor from the responsibility of adherence to the contract and for any error that may exist. 8. All bare areas shall be scarified, limed, fertilized, seeded and mulched. 9. All trees, saplings, brush, etc. shall be removed from within the right of way and the drainage easements. 10. Visibility of all mechanical equipment from the Entrance Corridor shall be eliminated. 11. Retaining walls require separate building permits. 12. All water service lines, sanitary laterals, and sprinkler lines must be visually inspected by the Albemarle County Building Department from the main to the structure. 13. Retaining walls greater than 3 feet in height require a separate building permit. Walls exceeding 4 feet in height require a stamped engineered design also. Walls require inspections as outlined in the USBC. 14. Accessible parking spaces, access isles, and accessible route shall be installed in accordance with ICC ANSI At 17.1-09 and the 2018 Virginia Construction Code. 15. Where the flood level rims of plumbing fixtures are below the elevation of the manhole cover of the next upstream manhole in the public sewer, the fixtures shall be protected by a backwater valve installed in the building drain, branch of the building drain or horizontal branch serving such fixtures. Plumbing fixtures having flood level rims above the elevation of the manhole cover of the next upstream manhole in the public sewer shall not discharge through a backwater valve. 16. All roof drains shall discharge in a manner not to cause a public nuisance and not over sidewalks. 17. Buildings or structures built before January 1, 1985 must have an asbestos survey performed in order to apply for a demolition permit. 18. Asbestos removal permits are required if positive for such from Albemarle County and VDOLI. Contact VDOLI for their additional requirements and permits for demolition projects at 540-562- 3580 x131. 19. All water, sewer and fire lines require NEW inspection and testing procedures. The ACSA performs any testing and inspections of the public sewer and water main(s). 20.As-Built construction records, testing and inspection must be completed as outlined on the Construction Record Drawing for VSMP document provided on Sheet C2. VSMP PLAN RIVER'S EDGE WPO 2021-00069 TAX MAP 32, PARCEL 5A, 5A-1 ALBEMARLE COUNTY, VIRGINIA VICINITY MAP SCALE : 1 "=500' CAMELOi J 9. Group Clayton Homes Q Seraphlr ABC Supply Co.. Inc SITE LEWIS AND CLARK DRIVE 0 Q The KI 1ROUTE ty Of Park.. SEMINOLE TRAIL JW Townsend Q ROUTE 29 Landscapes SEMINOLETRAIL 5 [rter for Applied jomectlanlcs FabrjcSUnlimited v Y T N 0 R T H S I D E INDUSTRIAL PARK p PINFRIDGF 'RS SHEETINDEX C1 COVER C2 PROFFER, PERMITS & CONDITIONS C3 EXISTING CONDITIONS: OVERVIEW C4 EXISTING CONDITIONS C5 EXISTING CONDITIONS C6 PRESERVED SLOPES DISTURBANCE C7 SITE PLAN OVERVIEW C8 SITE & UTILITY PLAN C9 SITE & UTILITY PLAN C10 SITE & UTILITY PLAN C11 GRADING PLAN C12 GRADING PLAN C13 GRADING PLAN C14 STORMWATER MANAGEMENT PLAN C15 STORM SEWER PROFILES C16 STORM SEWER PROFILES C17 LANDSCAPE PLAN C18 MITIGATION PLAN C19 EROSION CONTROL NARRATIVE C20 EROSION CONTROL PLAN OVERVIEW C21 EROSION CONTROL PLAN PH 1 C22 EROSION CONTROL PLAN PH 1 C23 EROSION CONTROL PLAN PH 1 C24 EROSION CONTROL PLAN PH 2 C25 EROSION CONTROL PLAN PH 2 C26 EROSION CONTROL PLAN PH 2 C27 EROSION CONTROL PLAN PH 3 C28 EROSION CONTROL PLAN DETAILS IMAGE PROVIDED BY GOOGLE MAPS SHIMP ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM tiN TH 'P eHIMP 183 VSMP PLAN RIVER'S EDGE ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2022.07.07 REVISION: 1.01 /10/2023 FILE NO. COVER 15.064 C1 9 4 ORDINANCE NO. 20-A(9) ZMA 2018-00018 AN ORDINANCE TO AMEND THE ZONING MAP FOR TAX PARCELS 03200-00-00-005A1 AND 03200-0000-005AO BE IT ORDAINED by the Board of Supervises of the County of Albemarle, Virginia, that upon consideration of the transmittal summary and staff report prepared for ZMA 2018-00018 and their attachments, including the application plan last revised on April 14, 2020, the information presented at the public hearing, any written continents received, the material and relevant factors in Virginia Code § 15.2-2284 and County Code §§ 18-19.1 and 18-33.27, and for the purposes of public necessity, convenience, general welfare and good zoning practices, the Board hereby approves ZMA 2018-00018 with the application plan last revised on April 14, 2020. 1, Claudette K. Borgersen, do hereby certify that the foregoing writing is a true, correct copy of an Ordinance duly adopted by the Board of Supervisors of Albemarle County, Virginia, by a vote of five to zero, as recorded below, at a regular meeting held on August 5, 2020. Clerk, Board of County Supe ors Ave Nay Mr. Gallaway Y Ms. LaPisto-Kirtley Y _ Ms. Mallek Y _ Ms. McKee) Y _ Ms. Palmer _ Absent Ms. Price Y RESOLUTION TO APPROVE THE RIVER'S EDGE REQUEST FOR A CENTRAL SEWERAGE SYSTEM ON TAX PARCELS 03200-00-00-00SAl AND 03200-00-00-005AO NOW BE IT RESOLVED that, upon consideration of the staff report prepared for this request and all of its attachments, the infomation presented to the Board of Supervisors, and the factors relevant to central sewerage systems in County Code Chapter 16 and the Albemarle County Comprehensive Plan, the Albemarle County tyBoau1 of Supervisors hereby approves the request for a central sewerage system on Tax Parcels 03200-00-00-005A I and 03200-00-00-005AO, subject to the conditions contained herein. x+r I, Claudette K. Borgersen, do hereby certify that the foregoing writing is a true, correct copy of a Resolution duly adopted by the Board of Supervisors of Albemarle County, Virginia, by a vote of five to zero, as recorded below, at a regular meeting held oil, August 5, 2020. 2zkg" Clerk, Board of County St e - rsors Mr. Gallaway Ms. LaPisto-Kirtley Ms. Mallek Ms. McKeel Ms. Palmer Ms. Price A,Le Nay Y Y _ Y _ Y _ Absent Y i RESOLUTION TO APPROVE, SP 201800023 RIVER'S EDGE BE IT RESOLVED that, upon consideration of the staff repots prepared for SP 201800023 and all of their attachments, the information presented at the public hearings, the additional data submitted by the applicant, any written comments received, and the factors relevant to a special use permit in Albemarle County Code §§ 18-30.7.1, 18-30.7.4(b)(2), and 18-33.40, the Albemarle County Board of Supervisors hereby approves SP 201800023, subject to the conditions attached hereto. 1, Claudette K. Borgersen, do hereby certify that the foregoing writing is a true, correct copy of a Resolution duly adopted by the Board of Supervisors of Albemarle County, Virginia, by a vote of five to zero, as recorded below, at a regular meeting held on August 5, 2020.. 'r-�-aso i Clerk, Board of County Sup sots Aye Nay Mr. Gallaway Y Ms. LaPisto-Kirtley Y Ms. Mallek Y Ms. McKee[ Y _ Ms. Palmer _ Absent Ms. Price Y _ i The River's Edge Central Sewerage System Conditions 1. The central sewerage system must be established and operated in accord with the Preliminary Central Sewage System Plan prepared by Shimp Engineering, P.C., last revised on July 24, 2020, and with DEQ's Reliability Classification Woksheet for Sewerage Pump Stations completed by Shinnp Engineering, P.C.; 2. Before any building permits may be issued for dwelling units to be served by this sewerage facility, the facilitymust be either a full completed and authorized for use or bonded with the County; O Y P O 3. The Owner(s) of Tax Parcel 03200-00-00-005A1 and 03200-00-00.005AO assume full responsibility for the proper operation and maintenance of the sewerage system; and 4. If requested by the County Engineer, the Owner must demonstrate annually to the County Engineer full compliance with all State operation and maintenance requirements. SP2018-23 River's Edge Special Use Permit Conditions 1. The limits of disturbance within the Preserved Steep Slopes Overlay District are to be limited to the sizes, locations, and extents of disturbance as proposed in the "River's Edge: Steep Slopes Disturbance" application prepared by Shimp Engineering, P.C. and dated February 28, 2020. 2. Improvements related to stoinwate•, drainage, and grading shown on the final site plan and water protection ordinance plan fu River's Edge must be in general accord with the improvements and grading shown on the exhibits "River's Edge: Road Grading+ Profile" and "River's Edge: Conceptual Stornnwater" in the "River's Edge: Zoning Map Amendment Application Plan" application prepared by Shimp Engineering, P.C. and dated February April 14, 2020. 3. Any blasting of rock must be performed subject to a blasting plan reviewed and approved by the County Engineer and other Authorities havingjurisdiction, prior to commencing such activity. 4. Two -layer erosion and sediment control measures will be installed around the perimeter of the site, where feasible, at the discretion of the County Engineer. 5. Erosion and sediment control basins and traps may not be located within the floodplain limits. SHIMP ENGINEERIN G1 LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM TH �c i O.. U ?S, HIMP a o. 183 1110123 w4 F G s SNA E I O L _ VSMP PLAN RIVER'S EDGE ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2022.07.07 REVISION: 1.01 /10/2023 FILE NO. 15.064 PROFFER, SPECIAL USE PERMITS, & CONDITIONS C2 TMP 32 UNITEF ES OF AMERICA C/0 U'S.,ARM A1` { TTN TMP 32 SF / SERAPHIt HOLDING LLC \'—"���S7A—T� DIVISION DBj5040-58f7 /'4;' _ ,// ♦ / - / - i 1 !� / r; -0B 1595 138 ZONE: LIGHT INrUSTRY ` / �� / - / I')`1 ''i/% — L '`ZOIJ 11BHT INDQST&Y / 1 !j USE COMMERCIAL /� 1r �" , ' % "%Y'' iE 6.41 AC 2888 Jim h ... q,,r" TMP 32-5E CHIRO DB 358/64 \ ZONE: HEA ttIND \ \ USE: AMM�,k !S.q2 AC i \ i TMP 32/ \ \ ALBEMARLE COUN__T//Y/S DB ys30 v 11.11. illT / / / / / SHIMP ENGINEERING2. LAND PLANNING — PROJECT MANAGEMENT 912 E. 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HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM � I 1 �W40' /4'L`L00 4,36B6 SWMkASEMENT \'� � _ _ -F FE _ _ 430.Ob-_ -v vvv A 436.00//80 \\ \\ \\ \ \\\ \ _ RG� \.. \ \\ \\ n � �` _-- ---- n , / 0 pp/ / � / / / / � / FF,p .d`•l/ 5 / OF 60p // / / / \\ \\ \\ \ \\ \--� �S �s \\ BFE - - '-_ /9/ `n / htiti/ /1� .// \� s / �. e �,, ipp0/ y� / •y0 / , , /' // // I U 1$ HIMP Y 426.0 _ / /\ A. / / / / - �i fl / // / I O. 183 8FFEE0_------- / / 14 ' 0 /s / s �/ / / // '/ '/ -� --__------ N�,ypo / /'�// /' / ',.F, F � .i/ — / / I G19 / W.", R EA EME vvv — — — — - — �- / // /�/ /�/ /// ? //�g� / / / •�� /// / _ / ���,P� //VSMP PLAN y� \ \\ oR�, \ _ �% \ \� RIVER'S EDGE /ter A lus su \ \ \ \ S J 5sa•/ / / // / i ALBEMARLE COUNTY VIRGINIA s \ \ _ — — — a4� oo _° / /' / // /' / / // / / SUBMISSION: \\\ \ ? \\ \\\\ 3g8 0 \S\ \ ,40 \ - .- `•0 // , i �\ \ \6�\ F FFE FFf-' „. 7 7 406.00 _ im 406.50 406.50 �O��.O l . o l \I \ \ \ \\ \\ 7 395Sp \\\ e--��g = `\ ` /--' g vEJ�p / // �% ,/ /' // // / / / ,/ REVISION: s — — — --_-- --' / / / / r // /' 1.01/10/2023 \ _ \ \ _ s \s s s s 396b0� BFE —-----'' /BF BFE \�9\6.00 / 396. 0` ——396SIL— /_---------_\ --- // ,' \ ,/ i// FILE NO. - - - __-v------� / /,'�� // / // ////// _ 15.064 --------//------- v\-_\-�,_-- / // // // ,� - / /-- /// / / // i GRADING PLAN ...., ; \ \ \ \ \ , � \ \ ` - _ -- `�_ "►Y `--__� � r , � ' ' 100-YR FLODDPLA� \ - - - - - - _ ' ' / - / , , - �AV�VAAV �\ _-'vv rLe�v _lk ---------- \ ,--/// 30 0 30 60 90 '—`-- \ ♦' , Scale: 1'=30' C13 \ \ DI-3C :.\ �B x0 O / ` • IDI-38 \ 4' / MH- i NEW SWIM EASEM m �j UNDERGROUND DETENTION CONSTRUCTION NOTES: IMPORTANT: THESE NOTES ARE GENERAL INSTRUCTIONS FOR DESIGN AND CONSTRUCTION OF THIS DETENTION SYSTEM. MANUFACTURER'S GUIDELINES SHALL SUPERCEDE THESE NOTES. IF DISCREPANCIES OCCUR BETWEEN THESE NOTES AND MANUFACTURER'S GUIDELINES, CONTACT DESIGN ENGINEER IMMEDIATELY. CONTRACTOR IS RESPONSIBLE FOR FOLLOWING ALL MANUFACTURERS GUIDELINES. CMP DETENTION NOTES: 1. MINIMUM TRENCH WIDTH MUST ALLOW ROOM FOR PROPER COMPACTION OF HAUNCH MATERIALS UNDER THE PIPE. THE TRENCH WIDTH IS THE MINIMUM AMOUNT REQUIRED FOR PROPER INSTALLATION AND TO SUPPORT HORIZONTAL PRESSURE FROM THE PIPE. THE MANUFACTURER'S SUGGESTED MINIMUM VALUE IS: 1.5D + 12". 2. MINIMUM EMBANKMENT WIDTH (IN FEET) FOR INITIAL FILL ENVELOPE: 3.OD BUT NO LESS THAN D + 4'0". 3. FOUNDATION SHALL BE WELL CONSOLIDATED & STABLE, CAPABLE OF SUPPORTING FILL MATERIAL LOAD. 4. OPEN -GRADED GRANULAR BEDDING MATERIAL SHALL BE A RELATIVELY LOOSE MATERIAL THAT IS ROUGHLY SHAPED TO FIT THE BOTTOM OF THE PIPE, 4" TO 6" IN DEPTH. SUGGESTED PARTICLE SIZE OF 1/2 CORRUGATION DEPTH. 5. PIPE MATERIAL: 16 GAGE ALUMINIZED CORRUGATED STEEL PIPE, 3"xi" CORRUGATIONS OR EQIV. 6. HAUNCH ZONE MATERIAL SHALL BE HAND SHOVELED OR SHOVEL SLICED INTO PLACE TO ALLOW FOR PROPER COMPACTION. 7. THE BACKFILL MATERIAL SHALL BE A FREE -DRAINING, ANGULAR, WASHED -STONE PER AASHTO M 43. USE #57 STONE FOR BACKFILL. MATERIAL SHALL BE PLACED IN 12" MAXIMUM LIFTS AND SHALL BE WORKED INTO THE PIPE HAUNCHES BY MEANS OF SHOVEL -SLICING, PODDING, AIR -TAMPER, VIBRATORY PLATE OR OTHER EFFECTIVE METHODS. COMPACTION IS CONSIDERED ADEQUATE WHEN A DENSITY EQUIVALENT TO 90% STANDARD PROCTOR IS ACHIEVED OR WHEN NO FURTHER YIELDING OF THE MATERIAL IS OBSERVED UNDER THE COMPACTOR OR UNDER FOOT. THE PROJECT ENGINEER OR HIS REPRESENTATIVE MUST BE SATISFIED WITH THE LEVEL OF COMPACTION. INADEQUATE COMPACTION CAN LEAD TO EXCESSIVE PIPE DEFLECTIONS AND SETTLEMENT OF THE SOILS OVER THE SYSTEM. BACKFILL SHALL BE PLACED SUCH THAT THERE IS NO MORE THAN A TWO -LIFT DIFFERENTIAL BETWEEN THE SIDES OF ANY PIPE IN THE SYSTEM AT ALL TIMES DURING THE BACKFILL PROCESS. BACKFILL SHALL BE ADVANCED ALONG THE LENGTH OF THE SYSTEM AT THE SAME RATE TO AVOID DIFFERENTIAL LOADING ON ANY PIPES IN THE SYSTEM. 8. INITIAL OPEN GRADED GRANULAR BACKFILL ABOVE PIPE MAY INCLUDE ROAD BASE MATERIAL (AND RIGID PAVEMENT IF APPLICABLE). 9. TOTAL HEIGHT OF COMPACTED COVER FOR CONVENTIONAL HIGHWAY LOADS IS MEASURED FROM TOP OF PIPE TO BOTTOM OF FLEXIBLE PAVEMENT OR TOP OF RIGID PAVEMENT. 10.FINAL BACKFILL MATERIAL SELECTION ABOVE THE SPECIFIED STONE LAYER IS COMPACTED SOIL BACKFILL, MIN CBR=10, PER PARKING LOT DI-38 PAVEMENT DESIGN SECTION IN SITE PLAN. L=10' 11.GEOTEXTILE SHALL BE USED AROUND TOP AND SIDES OF STONE BEDDING TO PREVENT SOIL MIGRATION. ROOF 12.FOR MULTIPLE BARREL INSTALLATIONS THE RECOMMENDED STANDARD SPACING BETWEEN PARALLEL PIPE RUNS SHALL BE PIPE DIA./2. FOR 8" 8" ROOF PIPE DIAMETERS 72" AND LARGER, NO LESS THAN 36" SPACING. PROJECT SPECIFIC SPACING IS DIA/2 = 48". DRAINS RAT 13.CONTRACTOR SHALL ENSURE DETENTION PIPES ARE SOILTIGHT AT JOINTS BY UTILIZING GASKET AND HUGGER BANDS. (SEE CMP BAND NOTES) CMP RISER NOTES 1. DELIVERED BAND STYLE AND FASTENER TYPE MAY VARY BY FABRICATION PLANT. 2. JOINT IS TO BE ASSEMBLED PER AASHTO BRIDGE CONSTRUCTION SPECIFICATION SEC 26.4.2.4. 3. BAND MATERIAL AND GAGE TO BE SAME AS RISER MATERIAL. 4. IF RISER HAS A HEIGHT OF COVER OF 10' OR MORE, USE A SLIP JOINT. 5. BANDS ARE NORMALLY FURNISHED AS FOLLOWS: a.12" THRU 48": 1-PIECE b. 54"+: 2-PIECES ' 6. ALL RISER JOINT COMPONENTS WILL BE FIELD ASSEMBLED. 7. MANHOLE RISERS IN APPLICATIONS WHERE TRAFFIC LOADS ARE IMPOSED REQUIRE SPECIAL DESIGN CONSIDERATIONS. REFER TO RISER DETAIL. 8. DIMENSIONS SUBJECT TO MANUFACTURING TOLERANCES. 9. PREMANUFACTURED STUB -OUTS FROM THE DETENTION PIPES SHALL BE PROVIDED FOR. RISER CONNECTIONS. ALL OTHER RISER JOINTS SHALL BE SOILTIGHT. CMP HUGGER BAND & SLIP JOINT NOTES HUGGER BANDS OR EQUIVALENT SHALL BE USED TO ATTACH SECTIONS OF CMP PIPE. SLIP JOINTS SHALL BE USED TO ATTACH RISER SECTIONS WITH A TOTAL HEIGHT > 10'. BAND MATERIALS SHALL BE 14 GAGE ALUMINIZED STEEL OR EQUIVALENT PER MANUFACTURERS RECOMMENDATION. 1. BANDS SHALL BE SHAPED TO MATCH THE PIPE. 2. BANDS ARE NORMALLY FURNISHED AS FOLLOWS: a.12" THRU 48": 1-PIECE b. 54"+: 2-PIECES 3. BAND FASTENERS SHALL BE ATTACHED WITH SPOT WELDS, RIVETS OR HAND WELDS. 4. ALL CMP IS REROLLED TO HAVE ANNULAR END CORRUGATIONS OF 2-2/3"x1/2" PER MANUFACTURE RECOMMENDATION. 5. DIMENSIONS ARE SUBJECT TO MANUFACTURING TOLERANCES. 6. O-RING GASKETS SHALL BE USED FOR RISER CONNECTIONS. FLAT CASKETS SHALL BE USED FOR CMP DETENTION PIPE CONNECTIONS. UNDERGROUND DETENTION SYSTEM MAINTENANCE NOTES: 1, ENTRY INTO UNDERGROUND PIPES REQUIRES CONFINED SPACE CERTIFICATION 2. CHECK STRUCTURE INLETS FOR DEBRIS AND SEDIMENT & REMOVE AS NEEDED 3. INSPECT MAINTENANCE ACCESS TO ENSURE IT IS FREE OF WOODY VEGETATION & REMOVED AS NEEDED. \ 4. INSPECT UNDERGROUND PIPES FOR BUILD UP OF SEDIMENT OR OTHER DEBRIS & REMOVE AS NEEDED. 5. INSPECT DETENTION CONTROL STRUCTURE WEIR WALL AND ORIFICES & CLEAN AS NEEDED. RIM=407.27 \ � �CCES � A. �3�"�► i . : M NHOL P� . ACC SS 24" • MANH LE A �3 N F1 DI 3B _ RIM-406.3 RIM=406.73 180-LF 108" CMP DETENTION _ L-10' SHIMP 8" ROOF DI-313 / RAINS L=10' , 4, 100.0, 80.0' o (TYR) New Trash Rack ENGINEERING 2. 1" Holes 3 CF 2 o LAND PLANNING -PROJECT MANAGEMENT - 1 �o DI_10' 2R.. 30% Opening Area a ^oo°Opo o°o° oe h"ff ,. . ooeoo° 0 912E HIGH ST 4342275140 ' ..' +... ,, .,, .. •.. ... a •d•p a°Po0.�y-9 Standard Hardware CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM m 7 Fes• °.\ 000000 00 000 000000 000000 000000 000000 •.? (Typ.) o O O O O O O O O O m O O O N°m"ir11 DI 313 �, 000000 C4 OOOOOo O O O ELEVATION VIEW 8" ROOF L 10' O O O O O O O O O rn O O O O O O O O O �,�.P1"`'N' 1 RAINS `, a Z 000000 000000 000000 nur pl.=u. (TYR) 000000 000000 000000 vl KI M..... 3/8"Neoprene Gasket O O O O O O O O O ' 11 I" 1"i Fall nut (24" Wide) r� \ I.. 1 � ,� 24" A TH op 6•• 24•• 6•, 0 � � � � r?�, Typ. Front Section Typ. Front Section Typ. Front Section '. G� ' yr plm. ..e+n.n• \t`1'I II 11 af.lY 1''Ilulra a r Ii \ ., . x � �,.•.aa u rs HINU a 183 00 00 00 a � 4Q' DMH-1\ \ DD m OO 90 RIM=384.31 mD0D 0 0OD 000 0000S�IO1�NOAiL 14+00 23ti tyG O O O O O O O 000000 000000 OG Oo aO - 6 6' 6ircMrieu NEW 4' DITe _ - 24 Wide Band Stan ) ware \� \ - _ EC-MACz NG \ - - -_ _ _ \ (A) Bottom Rack Side (B) Top Rack (C) Bottom Rack Side BVgp TRASH RACK 1 L'' �1 " Standard Hard DRY POND 1 48"iSTANDPIPE �� \ \ \ - \ -� \ V\\ 5\ _ _ N Section Side Section Section IYi oxs I11 YP \D ET LITI e SECTION VIEW VSMP PLAN - - --- - -- 86 ® 2 sMW AeINr� - \ \-----------'- �, �\ 1 ORIFICE TRASH RACK DETAILS RIVER'S EDGE \ JNV`3 . i - - - \ �4 \ /`\ EW 20-FT 2 CMP HUGGER BAND DETAIL ACCESS EASEMENT- - \ _ -1 \�-�8 \� --- \\ --coo--- a C14 NOT TO SCALE \ \- - �\ L ---_ --\ q NOT TO SCALE - -RIPRAP OUTLET 88 \i _ _ - - - _ - - m \ C 14 \ - PRBT€CTtO \ _---2014.25'Wx9"D -------__-_\\ - - - - - - - -- - - - - - - -------- ' \ ` ------ \\\\ \ �� - - \----------- „k� E GN COUNTY, VIRGINIA ALBEMARLE \ _SUBMISSION: - --- - -- - - 1 (EBNG EEGTG ----- 2022.07.07 \ \ / �\ OJRE09\\---------------/ + rwso. wLTI nGRntss -\ �\ ---- - - -----��.\_ 's" \\----------- / //- / \ \ '.•• ° i gE KRJOINTIMIN,I REVISION: \ \ \ \ \ \ (, / SLGRSCMIN.LENGTH 1.01 /10/2023 H-1 ----- / / �' 4 SOINNrMGEtl FRB No DRY DETENTION POND CONSTRUCTION NOTES: / ' / .'' 0a11NO0A5KEf 1. DETENTION STANDPIPE AND OUTLET BARREL CAN BE INSTALLED DURING INITIAL irk\ -_- /' \ 10, TOP VIEW SECTION A -A MODIRIEOIA)GGFIi gNNe .. .. �, CONSTRUCTION OF THE SEDIMENT TRAP. ORIFICES SHOULD NOT BE CUT IN STANDPIPE IF -.- - - -. •• INSTALLED WHILE POND FUNCTIONS AS SEDIMENT TRAP. UPON CONVERSION TO PERMANENT DRY DETENTION POND, THE ORIFICES SHOULD BE CUT TO THE SPECIFIED DIMENSIONS AND \ - - / �• ELEVATIONS PROVIDED IN THESE PLANS. ENSURE TOP OF STANDPIPE ELEVATION IS PER --_ I `D O PLAN UPON CONVERSION TO PERMANENT DRY DETENTION POND. 2. POND SIDE SLOPES SHALL BE GRADED TO A MAXIMUM OF 2:1. ENSURE ALL SLOPES MEET �` --- // MH-1 i' L5 L THE 2:1 GRADE BEFORE PROVIDING PERMANENT SEEDING AND ENSURE SLOPES ACHIEVE l2:rJ• o H-1 �� RIM=374.17 .., � CONN DOUBLE FILE NO. PERMANENT STABILIZATION. 3. STANDPIPE MUST HAVE ANTI -VORTEX TRASHRACK ON RIM AND PERFORATED TRASHRACKS PN�P BOLT, BAR &STRAP 15.064 AS SHOWN ON SHEET C14 OVER BOTH ORIFICES E /� / �� \ a+, �,.•� � MUC TlP NG /' /' 1. DRY IN9PECTTIOORPOND DEBRISMAINTENANCE TRASHRACOSE& REMOVE AS NEEDED (MONTHLY) GOURrTGRfM N ` 1 J �'N �OR ' C14 oMP SCALET TO IP JOINT DETAIL STORMWATER 2. INSPECT INLETS FOR DAMAGE, EROSION OR SEDIMENT & REPAIR AS NEEDED fir' �, �j % /�j' ,'� �••• MANAGEMENT 3. INSPECT SIDE SLOPE STABILIZATION AND PROVIDE SEEDING AS NEEDED ? ///i / / ' / \ 4. INSPECT FOR ANY SIGNS OF EROSION & ADDRESS AS NEEDED �� � 5. INSPECT PRINCIPAL SPILLWAY FOR EVIDENCE OF JOINT FAILURE OR LEAKAGE \ / �` / / /j/�/// �. PLAN 30 0 30 60 90 C14�..,� �_� Scale: 1"=30' F1 F2 F3 F4 F5 F7 420 415 410 405 400 395 39 Ci C2 415 410 405 400 395 390 B1 B2 w Z w p II N J N o N r �� yj � N O ll t z 2382-LF �0%- C5 0 0 � M d I I Z II - o o - z 460 415 455 410 450 405 445 400 440 395 435 390 430 10+00 10+50 1 STORM SEWER PROFILE B1-B2 425 C15 Scale:l"=30' D1 D2 420 41J 410 405 400 395 390 PROPOSE J GRADE No m o_ II z z EXISTING/ GRADE i 3% 3.q,4�LF NDP o O O O - M 0 d U >it M II Z II O -? o oz z 415 415 410 410 405 405 400 400 395 395 390 390 9+50 10+00 10+50 2 STORM SEWER PROFILE DI-D2 C15 Scale:l"=30' C3 .n. ON tp00 -- -- J � --- _n- EXISTIN- - I ROPOSE GRADE - ooz- GRADE-- - -- -- - -821-LF 1 0 -FIT z �Y294 F 5-�}DPE-0449% _. � M �. 4y II - 1D+00 10+50 11+00 11+50 STORM SEWER PROFILE Cl-C3 C 15 )Scale: 1"=30' 415 410 405 400 395 390 385 380 375 370 365 36C 7155 10+00 10+50 'I -CC 11+50 12+00 11 STORM SEWER PROFILE A1-F1 C 15 Scale: 1"=30' Al 420 415 410 405 400 395 120' 415 410 405 400 395 390 38 MO xhO �00 3 p..p ENO II J mOII mO OJN }i NMr II JI(JN m� 3N -__ O - - - porn r� II Jo]M }M II m� .pO }?. pN0 II Jd'M mM Kin }V II O�rn }d.. a ICIO Cp 0+� O.O d' J m. .N a v~i 3 �~ir I 3v~i w O wv~i N a GRADE A - \ 149.89-LF 15HOPE N 7 - a� � z -- - -- -- - EXISTIN GRADE yr LJ -- w I 151.35-LF 18" HDRE .1 _ 0 3 N 25 40-V g g6% HDPE ONOMANHOLE I DE STEEL -PLATE OOR / - 5G.PD ®a'jCV. NO STANDARD SL.=1 CONC. SAFETY SLAB- - ELEV: 415.00 = ROVIDE 3`STEEL PLATE- ON MANHOLE FLOOR. _ o - m¢� 92 06- LF 24. N p ZZZ Q > rNN TANDARD SL-1 GONG. SAFETY SLAB o ELEV: 399.22. rr Orn rnO> - �N Lq r z z z z - -----TO STR A4 - - 10+00'PROVIDE $ SIEEL PLATE 10+50 11+00 ON MANHOLE FLOOR E2 E3 E4 r OaM N �rn� ONCO 4 Go } - m 3 m L: cc u� - z o z o PC OPOSED o DE n - - _rL 10L20-LF 15" HDPE @23%-` - 47 00 0o rI� rn M cO M r M r EXIS IINTG LJKAUF M d II M II M II Z II > > > > >> > 9+50 10+00 10+50 11+00 11+50 5 STORM SEWER PROFILE E1-E4 C 15 )Scale: 1"=30' A4 F1 p7 op Oar �7 M T r W 89�5 OV 3 3 H H H H HW W H �tEV-3 N x u I QNC�V'EIB_ SEE DETAIL 6/G!5 6 / i Amom)E STEEL PLATE GONG. SAFETY SLA ELEV: 367.13 O - ern a y^- ROVIDE }" STEEL PLATE o ON MANHOLE FLOOR .., II n > > 4 Li 37:72-LF 3( rn In RCP @ 1.01% of ww o f II II M MMN n Ozzz > o > o > > > - w -? 12+50 13+00 415 410 405 400 395 390 385 380 375 370 365 360 355 50 13+5D 415 410 405 400 395 3390 12+0085 11+50 460 455 450 445 440 435 430 425 420 415 410 405 400 3g95 12+00 12+50 13+00 13+50 14+00 14+50 1S+00 15+50 16+00 16+5D O s STORM SEWER PROFILE F1-F7 C 15 Scale: 1"=30' L�H -30' ACCESS RISER W. LADDER MH-1 FRAME OR THE 4 MWFtS IN ASPHALT PARKING 24" NYLOPLAST GRATE OT, PROVIDE 5' DIAMER:R WNCRETE UWORTAGPf.WOS.MENT us 1sD N 4" 72" MH-1 B 1 IA WAR. IM-CT121STANDARD ECCETAPER NUNIIT 0 AA_ BASE UNDER GONG. RINGG.1.OT 100-YR WSE=400.12 NV=405.57 �oSP aooes T I R,CWEBIDACt£55 R. CDOB LADDER 10-YR WSE=399.31 CONCRETE Ti09'CMPDEIENRON T-1 STEPS WEIR WALLi-YR WSE=395.73 72" MH- DETAIL 6/C15 soupCMP RI A INV=398.15 30 CMP 30' PREMANUFACWR9' JED LMP OEIENRON INV=390.65RISER12"W x 6"HORIFICE ST-1 STEPS@396.85 W/ TRASHRACK (B S *CENTER STEPS TO #aT "ONE r' °: INV=390.65 TOP WEIR WALL BoT=sa9.6s 1.0'HIMP CONCRETE WEIR WALL ID PROVIDE STEPS ON H=7.5', W=6', T=6' 3.0" ORIFICE @390+65 BOTH SIDES OF WEIR 2-FTOVERLA NOTE: FILTER FABRIC 2-FT OVERLAP W/ TRASHRACK (A) 4" NYLOPLAST GRATE & ACCESS SHOULD NOT BE PLACED ON TRENCH BonoM8 OIL SUBGRADE PER MANUFACTURER SPECS s WEIR WALL SECTION A4 WEIR WALL DETAIL A4 DETENTION TYP. DETAILS C 15 NOT TO SCALE C 15 NOT TO SCALE C 15 NOT TO SCALE F1 B C\G wo zc Um; arc=EXISTING v�Q UQ ro �- 03-0- aa� w - � co M- n r Q �xo r�N + wow wo� CiwM Q. to Wrnr - Nat 0.. { GRADE N ROPOSED z N N o a ,r o.GRADE rn rn � J - m 0 0 o N TOP STONE=400.65 S7 STONE 1-FT DEPTH MMMN o z z z »» 3.0' 100-YR WSE=400.12 10-YR WSE=399.31 1-YR WSE=395.73 �+� BETINV=390.65 1- - I 2_ I. -. 0'- I DETENTION SOLID I PIPE 200IZED ALUMIUMI NIZED A CMP - I I 1 I BETINV=390.65 _ 32.41 LF 36" HQPE-C�.Il.QO% tT0-SIR-A4- - UGGER BAND W. GASKET AT CMP JOINTS. LOCATION PER MANUFACTURER SPEC. -BOTTOM STONE=389.65 57 - 1-FT ONE EPTFI 420 415 410 405 400 395 3900g 389+50 10+00 420 o O O a ono 415 3 Z Ul 410 !J N p � � N O O p 405 M M n ma lDwwl- 400 mo�N p Z Z Z » » 395 fT0-STRA 390 38450 10+00 9 10+50 11+00 UNDERGROUND 11+50 DETENTION A C 15 Scale: 1"=30' D1 G3 _w wow co aor p GRADE 3.0',- HDPE @ 0.00% N O ITnn�nNIF-Annns 12+00 FILE TING GRADE �57 1-FT E� 420 415 410 405 400 395 390 12+59 I 100-YR WSE=400.12 _ _ 10-YR WSE=399.31 1-YR WSE=395.73 LI SET. INV=390.65 I I I I 20.0' I I I DETENTION PIPEIB _ 200-1 108" _= SOLID ALUMINIZED CMP I DET. I I INV-3 00.65 rsul wm al ulvt=uay.00 HUGCMP BAI DTSWLGASKETOCATION `N57 STONE AT PER MANUFACTURER SPEC. T=FT-DEPTH 10+50 11+00 11+50 12+00 10 UNDERGROUND DETENTION B PROFILE 420 415 410 405 400 3 395 390 12+50 389 ENGINEERING2. LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM u Ts 1> m a iQoo q� 183 �1Ioo 23 w� �`SS'lnXFAT tiC1G VSMP PLAN RIVER'S EDGE ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2022.07.07 REVISION: 1. 01/10/2023 FILE NO. SWM PROFILES 15.064 C15 / Scale: 1"=30' C 15 DRIP LINE LD-229 Storm Drain Design Computations Rivers Ed From Structure To Structure Catch. Area (ac) Runoff Coer Increment AC (ac) Accum. AC (ac) Accum. wdh RD (ac) Total TOC (min) Total Intensity (il Total Flow (cfs) Up Il Ell Doan Invert Elev Pipe Length (ft) Invert Slope % Pipe Diameter (in) Pipe Capacity (cfs) Velocity (ft/s) Flow time Increment ((min) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 J4 J3 0.83 0.51 0.42 0.42 0.42 5.0 6.81 2.88 388.75 386.51 24 1.00% 15 7.0 5.48 0.07 J3 J2 C.17 0.62 0.10 1 0.53 1 0.53 5.1 1 6.79 1 3.57 388.31 1 388.01 1 21.69 1 1.38% 1 15 8.2 6.46 0.06 J2 J1 C.00 0,00 0,00 1 0,53 1 0,53 5.1 1 6.77 1 3.56 38T81 1 386.00 1 156.09 1 1.16% 1 15 8.9 6.82 1 0,38 `H4 H3 - - - - - - - 6.13 383.00 374.00 130.32 6.91% 15 18.4 13.48 0,16 "H3 H2 - - - - - - - 6.13 373.80 368.50 48.48 10.93% 15 23.1 15.93 0.05 `H2 H1 - - - - - - - 6.13 358,50 358,00 50.00 1.00% 15 7.0 6.43 0.13 F7 F6 0.17 0.53 0.09 0.09 0,09 5.0 6.81 0.61 437,56 434,56 118.46 2.53% 15 11.1 4.86 0.41 F6 F5 CAD 0,76 0,07 0,16 0,58 5.4 6.70 3.87 434.36 429.92 149,89 2.96% 15 12.0 8.7 0,29 F5 F4 0.33 0.69 0,22 0,80 1,64 5.7 6,62 10.82 429.72 424.91 161.35 3.18% 18 20.6 11.7 0.22 F4 F3 0.34 0.64 0.22 1.85 2.27 5.9 6.56 14.89 420.00 417.75 25.40 8.86% 18 33.9 18.6 0.02 F3 F2 0,24 0,59 0,14 2,41 2.41 5.9 6,55 15.81 417,55 412,57 57,25 8.70% 18 34.1 18.7 0,05 F2 F1 0.17 0.58 0.10 4.96 4.96 6.0 6.54 32.46 40T58 402.00 92.06 6.06% 24 72.2 22.4 0.07 F2C F213 0.47 0.66 0.31 0.31 1.56 5.0 6.81 10.83 410.17 409.28 98.62 0.90% 24 23.3 7.2 0.23 F2B F2A 0.00 0.00 0.00 1.56 1.56 5.0 6.81 10.63 409.08 408.36 80.66 0.89% 24 23.1 7.2 0.19 F2A F2 0.08 C.73 0.06 1.62 2,45 5.2 6.76 16.56 408.16 407,78 75.00 0.51% 24 17.5 6.3 0.20 E4 E3 0.34 0.64 0.22 0,22 0,63 5.0 6.81 4.31 399.00 397,75 101.20 1,24% 15 7.8 6.5 0,26 E3 E2 0.00 0.00 0.00 0.63 0,63 5.0 6.81 4.31 39T55 397.00 31.66 1.74% 15 9.2 T4 0,07 E2 E1 0,34 0,64 0.22 0.85 1,27 5.0 6.81 8.62 396,80 396.00 28,07 2.85% 18 19.6 10.6 0,04 Rivers Edge LD-204 Stormwater Inlet Computations nlas on wade Day Say bias only m E b S a ¢ O E = - q $ Z 5 a Teri E 12. h z _ U12 < ¢' t�J D U D a O S yr O O D U ii 2. 1 2 3 4 5 6 a 9 10 11 12 13 14 15 16 17 18 19 A 21 22 23 24 (4) (s0 fool pdhr) (°rl k�) (°r) (u1 (0 V) 1n1 m� mre) mr) (rt) (n1 07 F7 D1-3C 8 7368 0.17 0.53 0.09 4.0 0.36 0.00 0.36 0.015 0.015 0.020 0.020 - - - - - 0.09 0.5 0.18 2.83 6.5 0.58 0.00 0.58 0.015 OS15 0020 OS20 - - - - - 0.11 D5 0,21 3.90 F6 DI-38 10 4214 010 076 007 4.0 029 0.00 0.29 0015 0.040 0015 0.083 1.40 0.12 100.0% 029 000 - - - - 6.5 0.47 0.00 0.47 0.015 0.040 0.015 0,083 1.68 0.14 100.0% 0.47 0.00 - - - - F5 DI-3D 10 14208 0.33 0.69 0.22 4.0 0.90 0,00 0.90 0.015 0,040 0.015 0.083 2.78 0.18 101 0,90 oGD - - - - 6.5 146 0.00 lA6 0015 0040 0015 0083 4.82 0.21 100.0% 146 000 - - - - F4 DI-38 10 14910 0.34 0.64 0.22 4.0 0.87 0,00 0.87 0.015 0.040 0,015 0,083 - - - - - 0.18 D5 0.35 1.11 6.5 142 0.00 1A2 0015 0040 0015 0083 - - - - - 0.21 05 0.41 1.53 F3 DI-36 12 10439 0.24 0.59 0,14 4.0 0.57 0.00 0.57 0.015 0.083 0.020 0.083 1.57 0.13 61.0% 0.35 0.22 - - - - 6.5 093 0.00 0.93 0015 ODES 0020 0083 1e9 0.16 52.1% 048 044 - - - - F2 DI-38 14 7506 017 0.58 010 4.0 0.40 0.00 0.40 0.015 0.100 0020 0020 3.24 0.06 100.0% 040 0.00 - - - - 6.5 0.65 0.00 0.65 0015 0.100 0020 0020 3.89 0.08 100.0% 0.65 0OD F26 DI-3B 14 20417 0.47 0.66 0.31 4.0 1.25 0.00 1.25 0.015 0.030 0.010 0.010 - - - - - 0.10 0.5 0.19 9.80 6.5 203 0.00 2.03 0015 0030 0010 0010 - - - - - 0.12 05 0.23 13.27 F2A 01-313 10 3473 0,08 0.73 0.06 4.0 023 0.00 0.23 0,015 0.030 0,010 0.010 5.09 0.05 100D% 023 0.00 - - - - 6.5 0.38 0.00 0.38 0.015 0.030 0010 0010 6.14 0.06 1000% 038 000 E3 DI-36 10 14704 CS4 0.64 0.22 4.0 0.86 0,00 0.86 0,015 0.008 0.050 0.083 - - - - - 0.23 D5 0.47 1.10 6.5 1.40 0.00 140 0.015 0.008 0.050 0.083 - - - - - 0.28 0.5 0.56 1.52 E2 DI-36 10 14771 0.38 0.64 0.24 4.0 0.97 0,OD 0.97 0,015 0.008 0050 0.083 - - - - - 0.24 0.5 0.49 1.19 D2 D1 0,19 0,71 0.14 0.14 0,97 SO 6.81 6.59 398.00 39&00 23,44 8.53% 15 20.4 14.8 0,03 C3 01-36 10 12988 0,30 0.60 C2 01-38 10 16430 0,38 0.61 0,18 023 4.0 6.5 4.0 6.5 0.72 1,17 0,92 149 0,DO 0.00 0.Do 0.08 0.72 1.17 0.92 1.57 0.015 0.015 0.015 0.015 0.008 0.008 0.008 0.008 0050 OOW 0050 0050 0.083 0.083 0.083 0.083 - - - - - - - - - - - - - - 0.22 0.26 0.24 0.29 0.5 D5 0.5 D5 0.44 0.52 0.46 0,58 0.as 1.35 1.15 1.64 C3 C2 0.30 0,60 0A8 0.18 0.60 5.0 6.81 4.06 400,54 399,20 112.94 1.19% 15 7.6 6.3 0.30 C2 C1 0.38 0,61 0.23 0.83 1-66 5.0 6.81 11.29 399.00 39T00 28.21 7.09% 18 30.3 15.9 0,03 B2 Ell 10 11508 026 061 o18 4.0 6.5 064 1.05 0.22 0.44 0.86 IA9 0015 0.015 0008 ODDS 0050 0050 0083 0.083 3.37 4.36 0.23 100.0% 086 0OD C.28 94.5% 1.41 0.08 - - - - B2 B1 0.26 0.61 0.16 0.16 0.58 5.0 6.81 3.93 398,00 396.00 23.82 8.40% 15 20.3 12.8 0.03 P`'A4 A3 - - - - - - - 57.38 390.65 379,52 69.69 15.97°% 36 288.8 31.8 0.04 A3 A2 57.38 373.00 368.66 181.54 2.39% 36 111.7 15.9 0.19 'A2 Al - - - - - - - 57.38 359.59 359,21 37.72 1.01% 36 72.6 11.4 0.06 Iw rate from detention taken from 10-yr HydroCAD model. 400 395 390 385 380 375 370 365 360 355 350 345 J4 DI-5 3X3 38093 0.83 0.53 044 4.0 1.75 0.00 1.75 0.015 0.034 0.020 - - - - - - 0.13 0.5 0.26 4.51 6.5 2.84 0.00 284 0.015 0.034 0.020 - - - - - 0.18 0.5 0,35 4.71 J3 DI-5 303 7330 017 0.53 0,10 4.0 0.39 0.00 0.39 0.015 0.034 0.029 - - - - - - OA5 0.5 0.09 4.19 6.5 064 0.00 0.64 0015 0034 0020 0.06 05 0.12 4.26 Rivers Edge Modified LD-268 Roadside and Median Ditch Design Form Side Slope Min, Max Earth Ditch C A CA To 12 110 Q2 Q10 - '.1 L - 1 R Slope Ft/Ft Slope FUR Allowable Velocity a=D3 Ve1.' 2-yr 'Velocity 10-yr "Depth Matting Type Feetaard Channel cepb INCR ACC I 0.48 0.18 0.09 0.09 5.0 5.39 7.05 0.46 0.60 2 2 0.03 0.03 4.0 1.08 a12 EC-2 WPE1 0.88 1.00 2 0.55 0.13 0.07 0.07 5.0 5.39 7.05 0.38 0.50 2 2 0.03 0.03 4.0 1.00 011 EC-2 TYPE 1 0.89 1.00 3 0.68 0.04 0.03 0.03 5.0 5.39 7.05 0.15 0.19 2 2 0.03 0.03 4.0 0.70 0.06 EC-2 TYPE 1 0.94 1.00 4 0.54 1 0.65 1 0.35 0.35 5.0 5.39 7.05 1.90 2.48 2 2 0.01 0.06 4.0 2.26 am EC-2 TYPE 0.62 1.00 5 1 0.67 1 0.31 1 0.21 1 0.21 1 5.0 1 5.39 7.65 1.13 1.47 2 1 2 1 0.01 1 0.06 1 4.0 1.87 0.28 1 EC-2 TYPE 1 0.72 1.00 2-yr Velocity calcu6tions performed using steepest slope & 2-yr Imo 10-yr Depth calculation performed usi rg shallowest slope & 10-yr tow - Flowrates taken from HydroCAD model 10+00 10+50 '1+00 1'+ :, 12+00 (�1� STORM SEWER PROFILE H1-H3 Scale: 1"=30' 690PPf�yi3[Ni BOARD FENCE CORD FENCE 00 00 TRIANGULAR BOARD FENCE CORRECT METHODS OF TREE FENCING TREE PROTECTION FENCING C 16 % Not To Scale ,j n 1 395 390 385 350 375 370 10+00 10-50 3 DRY POND 1 PROFILE C16 Scale:l"=30' 400 395 390 385 380 375 370 365 360 355 350 12+5D45 .140 11= 11=1 385 380 3375 11+o070 430 425 420 415 410 405 400 395 390 F2 r.r 1l COUNTY OF ALBEMARLE Department of Community t)evelopment Construction Record Drawings (As -built) for VSMP The following is a list of information required on construction record drawings for stormwater facilities (reference Water Protection Ordinance 17-422). It is preferable that the construction record drawing he 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 assoc:iateLl 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 pilms which are not accessible or viewable. 3. Updated Location with geo-coordinales 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 he 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 reports and materials certifications. Bioftlter media must be an approved state mix. 13. Access roads - show location of access roads, surface treatment, drainage, etc, as applicable. 14. Compaction reports arc reluired to verify fill compaction in dams. 15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning. W Y 2� moo oo�n �rn �a�o o- ry o -SON -oI�N tp� JcO� mN.l1. m} 3 mo. - z z d z v SIANDARQ-SL- - 6f-NNdC-SA€€T'-SLA - - - G 489i N V N r7 rti I z LQ O III z n O � I o__ zz z z z 410 405 400 395 390 385 380 375 10+00 61) 10+50 2 STOI C16 Scale:1 11+50 12-00 SEWER PROFILE F2-F2C 12+50 J2 J3 A l �M W o o� +M W+ W it o W W + N t - T1NG-ORAD� EXI 1.69-LF 15RQF HDPE @ 1.007 1-56-.09--LF15 z e z _ W M n >.. M _ min II _ 0 O zz M > II z Z O » > zz Z II -0 O I rz z 10+00 10+50 11+00 11+50 STORM SEWER PROFILE J1-J3 C16 %Scale: 1"=30' 12+00 430 425 420 415 410 405 400 3395 13+& 0 410 405 400 395 390 385 380 75 2+5u SHICAMP ENGINEERING2 LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM ��A TA � � U TS L M a iQof 183 1,16 i1101z3w� �`SS'/nAreT tiC1G VSMP PLAN RIVER'S EDGE ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2022.07.07 REVISION: 1.01 /10/2023 FILE NO. SWM PROFILES 15.064 C16 N --� U — " ARK/NC, Si PROPOSED LANDSCAPE SCHEDULE Plant Symbol Planting Type Botanical Name Common Name Caliper/Height Quantity Canopy Total Canopy SF 0 Large Shade Tree Quercus bicolor Swamp White Oak 212" 14 339 4746 0 Large Shade Tree Liriodendron Tulip Poplar 21" 8 430 3440 tulipifera Large Shade Tree Fagus grandifolia American Beech 21" 23 275 6325 Large Shade Tree Ulmus americana cvs. American Elm 21" 21 423 8883 TOTAL PROPOSED CANOPY 23394 W Q 2 SPE NEW 25 MP "' 'law, i BUMLANDSCAPING REQUIRED:IT Sl , �",�, STREAM BUFFER SITE REQUIREMENT (32.7.9.8): 20% CANOPY REQUIRED. SITE AREA: 283,314.2 SF SITE AREA: 283,314.2 SF x 20% = 56,662.8 SF CANOPY REQUIRED: 56,662.8 SFCANOPY WQ \ w BUFFER STREAM /oo EXISITNG TREELINE 2 z4 ..,,S'r�,q/< ♦ � + 73,13930SSF b.. \'\ �� w ' .... '�,,, ♦'-FOOD, 734,924 SF PROVIDED \ 2� _ 2 w 3 STEP STEP � ... ,,.. --., ` ,,::,�„r, ♦ 5 w , INTERIOR/PARKING LANDSCAPE (32.7.9.6): 5% OF PARKED PAVED AREA. 4 STEP G �' ,� 100953.2 SF x 5% = 5,047.6 SF vw� es REQUIRED: 5,047.6 SF � 4gT� 4 STEP x' Z 600 +`�„ ,� , PROVIDED: 18,304 SF o ReMA1NrRFeuNf a STEP + 1 ` INTERIOR/PARKING LANDSCAPE (32.7.9.6): LARGE SHADE TREES (2'" MIN. CAL.) 162 PARKING SPACES (162/10 = 16.2) REQUIRED: 16 LARGE SHADE TREES PROVIDED: 51 LARGE SHADE TREES 4. 00 c HE F \ W w �F o NOTES: r 'YIELD' \F F, - /�9� ��'�^� 1. Contractor to apply mulch bedding around all proposed trees and z SIGN ` \ k4' NEW 20' ACSA F� o° sf ��e°° ��� 0 shrubs. All other landscaped areas shall be sodded. t�il WATER EASEMENT °,° �� �° ASA /�,, FFoo 2. All site plantings of trees and shrubs shall be allowed to reach, ENT and be maintained at, mature height; the topping of trees is prohibited. Shrubs and trees shall be pruned minimally and only to • w F pF�°o /�9° ��, support the overall health of the plant. + +v� �rx00� EEE p eA / / " © 3. All landscaping and screening shall be maintained in a healthy �F NtiB� condition by the current owner or property owners' association and I STEP \ �� qF��o A �o + / 0 replaced when necessary. Replacement material shall comply with - 13 STEP - A� �FFSgRRr�gT EW'NO PARKING' EE6°° '`0 vo the approved landscape plan. - \ • . Qqo F SIGN p`La' 4. Visibility of all mechanical equipment from the entrance corridor 6r Poi must be eliminated. 229� A • �F \ \ O • c .NNS A M � � � � � a`��� � ° NEW 'NO �- >r �2 SHIMP �vo _ 5 P\'YIELD' GN kyo �1 /� ®oo �� — W_W= /NEW v �� � /ti��� S���T+ �s ,� + ' ENGINEERING2. 0$ ��G'y0 - LAND PLANNING - PROJECT MANAGEMENT \_ O � AN& ' ' �---_---- • \ _;j,Y '. _ .N r' •. � � `' 0� °° 912 E. HIGH ST. 434.227.5140 h W EE6 ° / / CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM ---III--- - - FEE 440.000QA'C;'.51p _ - . �\ • E �N NEW 40' / s FFE + EAtK - _ ;� `v EE,�°° SWM EASEMENT 4 / `�.. 8 I m 440.00 E a. '.` % i,. + ' 0EE"p° ® 436.00 2 STEPS I FFE • PU E 0 ti EEE p r .\ \ �'. UN ND 4308EE'p0 -I' %-� 2 �s BFE � z `436.00 �-'5�� 430.00 g s BFE " © Q nLtipO + \ \ >0 ' ��� FFE°° s�ti 0°60 U S HIN P Y s s��1f 426.00 \ n p h `� e`� °` �' o. 183 E eEE �.. -. 06 •' , / 426.00 htiti00 �, � � : F I � \ / 6 •, �S t1 X 06o R45p ,. I \ � � s ya SIONAL E _ s R450 - L E 5° � 0519 Q9 R450 R4b0 = �� y w � ' � . NEW _ � 0 w �n � � , . Np0 s 0EE' p � , ' / + Yy f S9O� P� VSMP PLAN i ' s 00 F N VERV7Ew s S�®�! RIVER'S EDGE E'°p .50,65° �\9 SET TRUNK PLUMB. SEE PLANS FOR ♦,N W W " W _W __ J___:D __ _. - 1 W W W W NQ yR EXACT LAYOUT AND SPACING. - ' ` 4Q55 J 4p0 ' . s \ S 4o ,0` \ ;,\ a� o° �, ARBOR TIES, OR SIMILAR ALBEMARLE COUNTY, VIRGINIA E S S 4°, 00 eEE p 1-1/2" S0. OAK STAKES SUBMISSION: \ 0600,/ FFE FFE ,y9� ° SET 180 DEGREES APART 3g550 S-406.00 FFE FFE FFE N 40100 Ln \- 2022.07.07 � ♦ BFE 1g rn 406.00 ,406.50 406.50 r 5 FINISHED GRADE 7 '*-*,4.3g5S0 S/FP 4z �, _ = ` °' REVISION: QQ\ , 00 21 S S 5 ® 39 pD ' APPLY WATER 2" OF WOODCHIPS AFTER PLANTING AND LY 1. 01/10/2023 ♦ (q7N ' , �BFEftftft 396'00 BFE BFE BFE 1,00 4' COMPACTED EARTH ; 396.00 396.50 396.50 WATERING BERM ' O EXISTING GRADE ; g' TRAIL ' PLANTING PIT. SEE SPECS FOR EXACT \ SOIILUTAMEND ENTSANTING SOIL, AND PLANTING400, o ' \ FILE NO. REMOVE BURLAP & SIRING FROM TOP 15.064 11/3 OF ROOT BALL TWO TIMES UNDISTURBED SOIL BALLDIA.(MIN) LANDSCAPING PLAN \ �'�,„�"�'TOOYRFLOODPLAIN ` I TREE PLANTING DETAIL 7^' \ C1 % Not To Scale 30 0 30 60 90 .� 850 SF OF `�}wd RECREATIONAL AREA ::'-. :, rst \ I\',I' Scale: 1"=30' C17 Landscape Schedule Planting Type Botanical Name Common Name Minimum Planting Quantity Requirements Hardwood "Whips" Quercus velutina Black Oak 6' x 6' O.C. 342 Hardwood "Whips" Quercus rubra Red Oak 6' x 6' O.C. 342 Hardwood "Whips" Quercus prinus Chestnut Oak 6' x 6' O.C. 342 Hardwood "Whips" Liriodendron tulipifera TulipNellow Poplar 6' x 6' O.C. 343 Total: 1369 1 1 I I 1 1 t I Note: Species selected from the approved Albemarle County Planting List and can be substituted for Other species from the lists based on availability. Contractor shall begin planting after earthwork is finished and shall complete plantings within 6 months. Whips shall be planted according to best practices as specified by the USDA. Whips should be purchased in bulk from the VA Department of Forestry. ti 2P h h h STREAM BUFFER DISTURBANCE AREA CALCS 1:1 21 area (st) area (ac) area (at) area (ac) Ratio Used # Whips Dev. 24174 0.55 48347 1.11 1:1 671 Undev. 12561 0.29 25123 0.58 21 698 Total 36735 0.84 73470 1.69 Total # Whips 1369 Total Mitigation Area (so 49296 MITIGATION PLANTING CALCULATIONS 36,735 SF (0.84 ac) Buffer Disturbance (Total) 24,174 SF (0.55 ac) Buffer Disturbance (Impervious/Developed) 12,561 SF (0.29 ac) Buffer Disturbance (Pervious/Undeveloped) Existing developed areas within the stream buffer are proposed to be removed. Any developed area within the stream buffer that is removed will be replaced at a 1:1 rate with new plantings. This constitutes planting 671 whips over 24,174 sf. The Undeveloped or grassy/woods areas within the stream buffer that will be removed as part of the demolition process will be replaced at a 2:1 rate with new plantings. This constitutes planting 698 whips over 25,123 sf. Total Mitigation Planting Area = 49,296 sf Total Mitigation Plantings (whips) = 1,369 sf Mitigation Area ac #whips % of required area 1 5780 0.13 161 11.73% 2 12190 0.28 339 24.73% 3 3186 0.07 89 6.46% 4 10220 0.23 284 20.73% 5 9750 0.22 271 19.78% 6 8170 0.19 227 16,57% Total 1 49296 1 1.13 1369 100.00% 1 / / // ♦ LIMITS OF DISTURBANCE � ♦ ♦ i / / / •' TMP 32-5B � // / ♦♦ SEMINOLE NORTH LLC DB 4671-452 PLAT DB 4328-674 �. DB 3963-706 PLAT •.� `m�- �♦` i� / TMP A +� -- -- __ __ --�--,__ZONE: LIGHT INDUSTRy'" '♦ RIVERS EDGE HOLD S,.,LL mrr'ILt"� 9qi \\ DB 2987-423 MITIGATION REPLANTING 16.80 AC DB 752-709 PLAT - AREA #1 ♦'♦, ZONE: PRD 1 , " ` ♦" USE: RESIDENTIAL 5,780 SF STREAM BUFFER DISTURBANCE ♦"♦ 4.81 AC 161 WHIPS (UNDEVELOP r---------------------- NORTH FORK RN�—� TMP 32-5E j CHIRO LL/ DB 3583440 ZONE: HEAy/INDUSTRY USE: /MMERCIAL 15.02 AC \ TMP 32/-5D v CHIP/ LLC \ \ DB A89-444 ZONE:/GHT INDUSTRY ` /FUSE PUBLIC \ \ / 1.19 AC TMP 32,�BJ� `\ ALBEMARLE COUNTY./SERVICE AHT�ORITY DB 3p30-398 \ \ZONE: }AGHT INDUSTRY \ \ COMMERCIAL Z' i/ 0'64\AC / i i 07 40 DISTURBANCE LIMITS OF 1 / / TMP 32-5F SERAPH`t HOLDING LLC DB15040-587 ZONE: LIGHT INDUSTRY USE COMMERCIAL 1 6A1 AC 1 1 114�F TMP 32-5D'1.. UNITE kB,�ES OF AMERICA C/O b5. ARM Al ESTATE DIVISION DB 1595-138 ZONE: LIGHT INDUSTRY USE: OFFICE _ 28.88 AC TMP 32-5A1., RIVERS EDGE ASSOCIATES, LLC DB 1528-356 DB 752-714 PLAT-,_ DB 752-709 PLAT ZONE: PRD USE: RESIDENTIAL 27.71 AC i i I i I , I 1 ` 1 STREAM BUFFER DISTURBANCE (ONDEVELOPED) 1 i I j / e MITIGATION REPLANTING AREA #5 I 9,750 SF 271 WHIPS j i 1 1 TMP 32-�C4 UNITED STAJES OF I AMERICA C/O JUS ARMY I 1 CORP/11IJG OFFICE/COCNSEL DB 3257j086 + ZONE: RURAII AREAS USE: FOHIEST 46.67 IC \ i I i IF �i i �i i / LEGEND ® STREAM BUFFER DISTURBANCE 12,561SF (UNDEVELOPED AREA) ® STREAM BUFFER DISTURBANCE (DEVELOPED24,174 SIF AREA) LIMITS OF DISTURBANCE (9 31AC) SHIMP ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM I.1 ul' I1ro1�3 �`rSIONAL ti�G VSMP PLAN RIVER'S EDGE (DEV ED) i ♦� \„� N REPLANTING - � - _ - - - - - MITIGATION : � � \ ALBEMARLE COUNTY, IRGINIA V N \ AREA #4 SUBMISSION: 284 WHIPS2022.07.07 ___.. REVISION? / ��rk � %� 1 1122 1 / TMP 32 22K1 -...- _ - - ,_.'. ♦'\\' / / INCHEON HOLDINGS, LLC DB 3678-498 DB 1663-652 PLAT 4raRk'cy 9��`1 / TMP 33-15 i NEXT GENERATION LLC ZONE: RURAL AREAS / MITIGATION RE LA C'i - _ FILE NO. / USE: FOREST �`� DB 1534-611 AREA#2 ZONE: RURAL AREAS 12,190 SF LIMITS OF DISTURBANCE USE: OPEN ; -' 15.064 339 WHIPS 89.08 AC IGAT(ON RE NTING A- ,%' MITIGATION PLAN ARE 1 IF STREAM BUFFER DISTURBANCE ♦�" 3,186 SF (DEVELOPED) \, 89 WHIPS \ 30 0 30 60 90 I i i i 00000, C18 4 Scale: 1 `30' PROJECT DESCRIPTION, GENERAL NOTES, EROSION & SEDIMENT CONTROL NOTES, AND SEQUENCE OF CONSTRUCTION PROJECT DESCRIPTION THIS PROJECT PROPOSES 34 NEW 3-STORY MULTIFAMILY BUILDINGS. THE TOTAL AREA OF DISTURBANCE IS 9.31 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 TEMPORARY AND PERMANENT EROSION AND SEDIMENT CONTROL MEASURES AS SHOWN ON THE PLAN AND DETAILS. EXISTING SITE CONDITIONS THE SITE IS CURRENTLY A MAJORITY WOODED AREA, SURROUNDED BY THE NORTH FORK RIVANNA RIVER. THERE ARE 14 EXISTING BUILDINGS ON SITE, AN EXISTING TRAVELWAY AND EXISTING DRIVEWAYS. ADJACENT PROPERTIES THE SITE IS BOUNDED ON THE NORTH, SOUTH AND EAST BY THE NORTH FORK RIVANNA RIVER AND TO THE WEST BY ROUTE 29 NORTH. OFF -SITE AREAS THERE ARE NO OFFSITE ACTIVITIES. SOILS THE SITE IS COMPRISED OF: RONDA LOAMY SAND, 0 TO 2 PERCENT SLOPES (HSG:A) CHESTER LOAM, 15 TO 25 PERCENT SLOPES (HSG:B) CODORUS SILT LOAM, 0 TO 2 PERCENT SLOPES (HSG: B/D) GLENELG LOAM, 7 TO 15 PERCENT SLOPES (HSG:B) GLENELG LOAM, 15 TO 25 PERCENT SLOPES (HSG: B) GLENELG LOAM, 25 TO 45 PERCENT SLOPES (HSG:B) HAZEL LOAM, 25 TO 45 PERCENT SLOPES (HSG:B) YADKIN CLAY LOAM, 15 TO 25 PERCENT SLOPES (HSG:B) PHILOMONT SANDY LOAM, 25 TO 45 PERCENT SLOPES (HSG:A) MANOR LOAM, 25 TO 45 PERCENT SLOPES (HSG:B) DAN RIVER LOAM, 0 TO 2 PERCENT SLOPES (HSG:B) COLVARD FINE SANDY LOAM, 0 TO 2 PERCENT SLOPES (HSG:A) CRITICAL EROSION AREAS THE PRESERVED STEEP SLOPES ON SITE ARE CRITICAL EROSION AREAS. SPECIAL USE PERMIT SP201800023 WAS APPROVED BY ALBEMARLE COUNTY BOARD OF SUPERVISORS TO ALLOW A MAXIMUM PRESERVED SLOPES DISTURBANCE OF 39,100 SF. A TOTAL OF 30,034 SE OF PRESERVED STEEP SLOPES WILL BE DISTURBED. SEE PRESERVED SLOPES DISTURBANCE SHEET C6 FOR FURTHER DETAILS. THE RIVANNA RIVER IS A CRITICAL EROSION AREA. NO WORK SHALL BE CONDUCTED WITHIN 100-YR FLOODPLAIN. EROSION & SEDIMENT CONTROLS UNLESS OTHERWISE INDICATED, ALL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO THE MINIMUM STANDARDS AND SPECIFICATIONS AS SET FORTH IN THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, LATEST EDITION. THE MINIMUM STANDARDS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL REGULATIONS SHALL BE ADHERED TO UNLESS OTHERWISE WAIVED OR APPROVED BY VARIANCE. TEMPORARY CONSTRUCTION ENTRANCE (CE) - 3.02 A STONE PAD WILL BE CONSTRUCTED AT THE ENTRANCE THE SITE TO PROVIDE A MEANS OF REMOVING SEDIMENT FROM THE TIRES OF CONSTRUCTION VEHICLES LEAVING THE WORK SITE. THE CONTRACTOR SHALL REMOVE ANY MUD FROM THE EXISTING ROAD SURFACE BY MEANS OF SWEEPING AND SHOVELING. CONSTRUCTION ROAD STABILIZATION CRS)- 3.03 TEMPORARY STABILIZATION WITH STONE OF ACCESS ROADS, SUBDIVISION STREETS, PARKING AREAS, AND OTHER TRAFFIC AREAS IMMEDIATELY AFTER GRADING TO REDUCE EROSION CAUSED BY VEHICLES DURING WET WEATHER, AND TO PREVENT HAVING TO REGRADE PERMANENT ROADBEDS BETWEEN INITIAL GRADING AND FINAL STABILIZATION. SILT FENCE (SF) - 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. USE WIRE SUPPORTED SILT FENCE WHERE SPECIFIED ON THE PLANS. STORM DRAIN INLET PROTECTION (IP) - 3.07 THE INSTALLATION OF VARIOUS KINDS OF SEDIMENT TRAPPING MEASURES AROUND DROP INLETS OR CURB INLET STRUCTURES PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA; LIMITED TO DRAINAGE AREAS NOT EXCEEDING ONE ACRE, AND NOT INTENDED TO CONTROL LARGE, CONCENTRATED STORMWATER FLOWS. TEMPORARY DIVERSION DIKE (DD) - 3.09 A TEMPORARY DIVERSION DIKE SHALL BE USED TO BOTH DIVERT STORM RUNOFF FROM UPSLOPE DRAINAGE AREAS AWAY FROM UNPROTECTED DISTURBED AREAS TO A STABILIZED OUTLET AND TO DIVERT SEDIMENT -LADEN RUNOFF FROM A DISTURBED AREA TO A SEDIMENT -TRAPPING FACILITY. LOCATION AND DETAILS ARE SHOWN ON THE PLANS. TEMPORARY RIGHT-OF-WAY DIVERSION (RWD) - 3.11 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. DUST CONTROL (DC) - 3.39 DUST CONTROL MEASURES IN ACCORDANCE WITH STANDARD AND SPECIFICATION 3.39 SHALL BE IMPLEMENTED ONSITE TO PREVENT AIRBORNE MOVEMENT OF DUST. MEASURES INCLUDE IRRIGATION, MULCHING OR OTHER MEASURES AS OUTLINED IN THE SPECIFICATIONS. TEMPORARY SEDIMENT TRAP (ST) - 3.13 A SMALL BONDING AREA, FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT WITH A STONE OUTLET ACROSS A DRAINAGE SWALE, TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS FOR ENOUGH TIME TO ALLOW MOST OF THE SUSPENDED SOLIDS TO SETTLE OUT. MAXIMUM EFFECTIVE LIFE IS 18 MONTHS. PERMANENT STABILIZATION OUTLET PROTECTION - 3.18 THE INSTALLATION OF RIPRAP CHANNEL SECTIONS AND/OR STILLING BASINS BELOW STORM DRAIN OUTLETS TO REDUCE EROSION AND UNDER -CUTTING FROM SCOURING AT OUTLETS AND TO REDUCE FLOW VELOCITIES BEFORE STORMWATER ENTERS RECEIVING CHANNELS BELOW THESE OUTLETS. PERMANENT SEEDING - 3.32 A PERENNIAL VEGETATIVE COVERING SHALL BE ESTABLISHED ON DISTURBED AREAS WITHIN 7 DAYS OF BEING BROUGHT TO FINAL GRADE ON AREAS NOT OTHERWISE PROTECTED. SELECTION OF THE SEED MIXTURE SHALL DEPEND ON THE TIME OF YEAR IT IS TO BE APPLIED ACCORDING TO THE PERMANENT SEED SCHEDULE AS SHOWN ON THE DRAWING. SEEDED AREAS SHALL BE LIMED WHEN NECESSARY AT A RATE OF 2 TONS PER ACRES, AND FERTILIZED AT A RATE OF 1,000 LBS. PER ACRE OF 10-20-10 (10 LBS. PER 1,000 SQUARE FEET) OR EQUIVALENT. MULCHING - 3.35 ALL SEEDED AREAS SHALL BE MULCHED WITH STRAW IMMEDIATELY FOLLOWING SEEDING OPERATIONS. STRAW MULCH SHALL BE APPLIED AT A RATE OF TWO TONS PER ACRE. SOIL STABILIZATION BLANKETS AND MATTING - 3.36 SOIL STABILIZATION MATTING SHALL BE APPLIED IN THE CONVEYANCE AREAS OF THE DESIGNED DIVERSIONS TO HELP REDUCE VELOCITIES AND AID IN THE ESTABLISHMENT OF VEGETATION. A DETAIL SHOWING THE PROPER MATERIALS AND INSTALLATION IS SHOWN ON THE PLAN. 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, ETC., THE CONTRACTOR SHALL USE WHATEVER METHODS THAT ARE NECESSARY TO PROTECT STRUCTURES FROM DAMAGE. REPLACEMENT OF DAMAGED STRUCTURES SHALL BE AT THE CONTRACTOR'S EXPENSE. 3. 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. 4. 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. 5. CONTRACTOR SHALL NOTIFY AND COORDINATE ALL WORK INVOLVING EXISTING UTILITIES WITH UTILITY OWNERS, AT LEAST 72 HOURS PRIOR TO THE START OF CONSTRUCTION. 6. CONTRACTOR SHALL IMMEDIATELY REPORT ANY DISCREPANCIES BETWEEN EXISTING CONDITIONS AND CONTRACT DOCUMENTS TO THE OWNER AND ENGINEER. 8. CONTRACTOR SHALL ADJUST ALL APPURTENANCES AS REQUIRED TO MATCH NEW GRADES. THE EXACT LOCATION OF APPURTENANCES SHALL BE COORDINATED WITH THE OWNER. 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 THE CONTRACTOR FROM THE RESPONSIBILITY OF ADHERENCE TO THE CONTRACT AND FOR ANY ERROR THAT MAY EXIST. EROSION & SEDIMENT CONTROL NOTES: 1. ALL VEGETATIVE AND STRUCTURAL EROSION & SEDIMENT CONTROL (E&S) PRACTICES WILL BE CONSTRUCTED AND MAINTAINED IN ACCORDANCE WITH THE MINIMUM SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATION 9VAC25-840-40. 2. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO COMMENCEMENT OF LAND DISTURBING ACTIVITY AND ONE WEEK PRIOR TO FINAL INSPECTION. THIS REQUIREMENT CAN BE WAIVED AT THE DISCRETION OF THE PLAN APPROVING AUTHORITY. 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 ONSITE AT ALL TIMES. 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING BUT NOT LIMITED TO, OF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTRY EROSION AND SEDIMENT CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN REVIEWING AUTHORTY. 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION AND SEDIMENT CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN REVIEWING AUTHORITY. 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABALIZATION IS ACHEIVED. 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. 9.THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALY AND AFTER EACH RUN-OFF PRODUCING STORM EVENT. ANY NECESSARY REPARIS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. 10. INSTALL AND MAINTAIN CONSTRUCTION ENTRANCES FOR ENTIRE PROJECT AT ALL LOCATIONS WHERE VEHICLES ENTER/LEAVE THE WORK AREA AND WHERE SOIL IS STOCKPILED. 11. MAINTAIN ALL EROSION AND SEDIMENT CONTROL UNTIL THE COMPLETION OF FINAL STABILIZATION. UNLESS OTHERWISE NOTED ON THE PLANS REMOVE ALL EROSION & SEDIMENT CONTROLS FOLLOWING THE ESTABLISHMENT OF A PERMANENT VEGETATIVE COVER AND COMPLETION OF FINAL STABILIZATION. MANAGEMENT STRATEGY AND SEQUENCE OF CONSTRUCTION THE FOLLOWING ARE THE PROPOSED MANAGEMENT STRATEGIES AND DETAILED SEQUENCE OF CONSTRUCTION. REQUIRED PERMITS MUST BE IN -HAND BEFORE WORK BEGINS: 7:1_G11r 1. INSTALL CONSTRUCTION ENTRANCE. 2. INSTALL SILT FENCE AS SHOWN ON PLANS. 3. REMOVE EXISTING DRIVEWAY AND POOL LOCATED AT SEDIMENT TRAP #1 AND INSTALL ALL SEDIMENT TRAPS AS SHOWN ON PLANS. 4. INSTALL ALL DIVERSIONS AS SHOWN ON PLANS. 5. CONTACT THE ENGINEER AND ALBEMARLE COUNTY FOR INSPECTION AND APPROVAL OF ALL E&S CONTROL MEASURES. PHASE 2 1. UPON APPROVAL OF E&S CONTROL MEASURES, BEGIN WHOLESALE CLEARING, GRADING, AND STOCKPILING. 2. INSTALL ROADWAY, CURBING, RETAINING WALLS 3. INSTALL WATER, SANITARY SEWER AND OTHER UTILITIES. 4. INSTALL INLET PROTECTION TO DROP INLETS AS THEY ARE CONSTRUCTED. 5. MAINTAIN SILT FENCE, DIVERSIONS, OUTLET PROTECTION AND CONSTRUCTION ENTRANCE. PHASE 3 1. ESTABLISH AND MAINTAIN PERMANENT STABILIZATION, INCLUDING VEGETATION OF ALL SLOPES AND GRASSED AREAS. 2. ONCE SITE IS FULLY STABILIZED REMOVE SEDIMENT TRAPS, INLET PROTECTION AND CLEAN ANY SILT FROM STORM SEWER SYSTEM. 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. 3. ANY WASTE DISCOVERED DURING THE PROJECT SHALL NOT BE MOVED WITH OUT PRIOR AUTHORIZATION OF THE OWNER AND BE DIRECT -LOADED INTO COVERED ROLL -OFF CONTAINERS FOR TEMPORARY STORAGE PRIOR TO DISPOSAL IN A PERMITTED LANDFILL. EROSION & SEDIMENT CONTROL PERMITTING 1. 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. PERMANENT DETENTION SYSTEM MAINTENANCE 1. CHECK/CLEAR WEIR WALL - YEARLY 2. CLEAN/REMOVE HEAVY DEBRIS AND SILT BUILD UP FROM DETENTION SYSTEM - YEARLY 3. CHECK/CLEAR INLETS FOR DEBRIS - SEASONALLY STORMWATER MANAGEMENT: SWIM QUALITY: STORM WATER RUNOFF QUALITY SHALL BE ADDRESSED THROUGH THE DEDICATION OF 15.76 ACRES OF FOREST/OPENSPACE EASEMENT ON -SITE. THE REMAINING TP LOAD REDUCTION OF 2.07 LB/YR SHALL BE ADDRESSED THROUGH THE PURCHASE OF 2.07 NUTRIENT CREDITS PER THE VRRM RE -DEVELOPMENT SPREADSHEET. SWIM QUANTITY: WATER QUANTITY WILL BE ADDRESSED BY ONE DRY DETENTION POND THAT RELEASES 1-YR RUNOFF AT RATES COMPLIANT WITH THE ENERGY BALANCE EQUATION AND 10-YR FLOOD PROTECTION REQUIREMENTS ARE MET FOR VAC25-870-66-C(2)B BY RELEASING THE 10-YR RUNOFF AT A RATE LESS THAN PREDEVELOPMENT. WATER QUANTITY WILL BE ADDRESSED BY AN UNDERGROUND DETENTION SYSTEM THAT RELEASES 1-YR RUNOFF AT RATES COMPLIANT WITH THE ENERGY BALANCE EQUATION AND 10-YR FLOOD PROTECTION REQUIREMENTS ARE MET FOR 9VAC25-870-66-C(3)C THROUGH CONVEYANCE TO A MAPPED FLOODPLAIN. ZMA 201800018 RELATED NOTES: 1. NO SEDIMENT TRAP OR SEDIMENT BASIN SHALL BE INSTALLED WITHIN THE 100-YR FLOOD PLAIN LIMITS. 2. 2-LAYER EROSION CONTROL MEASURES SHALL BE PROVIDED AROUND THE PERIMETER OF THE SITE AT THE DISCRETION OF THE COUNTY ENGINEER. 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 14 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 city 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 on 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 9 operable during construction shall P 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: a.No more than 500 linear feet of trench may be opened at one time b.Excavoted 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. SHIMP ENGINEERING2. LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM ��A TA � UO 1S L In Y iQof 183 0);11 o i23w� �SS�(lAreT IE� VSMP PLAN RIVER'S EDGE ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2022.07.07 REVISION: 1.01 /10/2023 FILE NO. 15.064 EROSION CONTROL NARRATIVE C19 1 /' 0 / v SHIMP ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. 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BPOIN WHOLESALEOCLEARING, GRADI G, ANDES, E€NTTRAP -R�E&S CONTROL S- / / / / ,/ � / I / � /I I I I 1- A I \ \ vv - J/ G / // // / / / / 6 p I STOCKPILING. DA=�`� -- - �EDiMENT/ TRAP #4 I I 2. INSTALL ROADWAY, CURBING, RETAINING WALLS q84 = 3. INSTALL WATER, SANITARY SEWER AND OTHER DA /Y. UTILITIES. 4. INSTALL INLET PROTECTION TO DROP INLETS AS THEY ARE CONSTRUCTED. / / \ / / I I I 5. MAINTAIN SILT FENCE, DIVERSIONS, OUTLET PS / PROTECTION AND CONSTRUCTION ENTRANCE. g0 _ / $ o/ SHIMP \ \ v v \ \ \FS v , / \�------___-------P+��sE 2/ ' // / // ' 14 0 _ INEERING2. \ 6,�\ \ \ - _ ---- - €BIM€NTTRAP / / ;2 -t - - - r // / / / / i i , / / LAND PLANNING -PROJECT MANAGEMENT '� \ \� \\ \\\ \ `\ `--\- \ � // / // / - - /i � / / // / , , + ,WEIR 26 \ \\\ \\ \-`- --- _ /' /' /' /' .CR \0 - i /' / / / / / /'/' /'/i' .� r 912 E. HIGH ST. 434.227.5140 ` - \ CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING COM 08 } \ v \ \ \ \\ \ \\ \ V vvvvvvv vvv vvy'vv vvv v Oq - - - �� TREE PROTECTION FENCING I ` — TH Q 06 94 V \ \ \ \ \ 700.` — 86 84 — v 2°\\ \\ \�` 94 \ -88 _86 B.0-FI / ----�' /' - ,y� / / / /' ! / _ I is ,/ ( I I I VSMP PLAN 86 go88--- S =---' , / ;/ / , , ;' ; '/;' RIVER'S EDGE X+ TREE PROTEC110N FENCIN ----------' WEIR----- ---------------_ -- -----t - // ALBEMARLE COUNTY, VIRGINIA --- vv--- /' / /-'' /' i /� / // ��/'/'/�� SUBMISSION: - _ - - - - - - --- ' iI ' / // 7 7 <+ V "►-� ��r100 YRFLO�� ----- — - �' �i / / 1 I L N � � I / REVISION: -------------- // ,' 1.01/10/2023 f� ,/ �i/////� \ J \ \\ =� LIMITS OF DISTURBANCE \\ / 1 A I 1 \ V � 11 � � � \v V� � rr� r,r„rrr►,,, � " 'I. h / �/'/'' �I I //'\ \ 9.31 AC + VVA \ VA +-� FILE NO. \ VAA VAA AI r _ H. /'' / 15.064 _ EROSION CONTROL PLAN x� PHASE 2 v V A \ l A v0010i'��� //� 30 0 30 60 90 v A V A 4000, / `i"00 Scale: 1"=30'C26 _ — _ _ _ \ _ SLOPES' ER\ \ \\ \ \ \ \ \\\ \ \, a Ai -------------- -- —--------_v ST AV L 4`J� \ \\ \\ \\ `_ \� \\ \\\FFF V A vvv v �v A vvv vv�V1p _ ar _ �Fvv V A\ 4�V � � /—_— _--' `v A � V A V A\ vv vv `v \ `v vv v\ vvv A A � \V v - � r —•, b TREUPROTEC110M EENCING w \ \ \1\W\II \\ \\\ \\\ \ \ \ \\ \ \ \ v vv\ v\\\ \\\\ \\\ \\\ \\ \\\ V A\ \ 14 v. vvv vvv vv \ v vv�� �"v7 y T \ \ \ \ \ ` \ \ S 1� v \ G 5� \\I V AV A\ \ \ \\ V A \\ \\\ \\ V AV A\ \ \\ 16 STREAM BUF v V A 't v w \ I _ v \ \V ♦, v v vw a � r V A v v v n v v \ Voor \ \ \ \ \TREE, PRD7EC110rT FENgN— \ \\\\vvv A v vv vv vv vv v \ v� \ a\ v �w / .. \ V A I � I I I I A \ Y 1 I v V A v '`•'--— � A v 'AV A A \ � A\ \\ \x� 44 FGV + \ \ SEQUENCE OF CONSTRUCTION PHASE 3 1. ESTABLISH AND MAINTAIN PERMANENT STABILIZATION, INCLUDING VEGETATION OF ALL SLOPES AND GRASSED AREAS. 2. ONCE SITE IS FULLY STABILIZED REMOVE 46 �' I 3 / I I I I \ d 4\ / // I / s I /�T'' a 1 \ , \ \ \ \ SEDIMENT TRAPS, INLET PROTECTION AND / / / �+► T 44 _ — / v b TEE 4 A CLEAN ANY SILT FROM STORM SEWER 3 I I \ / / / �f O' / �I I SYSTEM.PROEC710N\ FENG \ \ \ \ \ I e C` or \ _ T .00 SHIMP \ v \ - - - - - - - - - - / /� ,4 ENGINEERING2 12 / LAND PLANNING -PROJECT MANAGEMENT 4 912 E. HIGH ST. 434.227.5140 \ \ _ CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM •\ \\ \ —\ \ _ — U� / / / / / // / 'BOA / /„GV� — / s / v 08 / / / / / / / / � I • /J �rV TEF\ TREE PROTECTION FENCI I • (TYP) /\�6"G — I I/ W W / ..f / /// / / IE�00 --/' _ r/' i \ \ \ \ HIMP Y \ \ \ ♦\ \ \ ,\ _ \,— --\ -- � � � s P Vim..' / 04 / / / ,y / � — / , —\ems NA �TyG L*00 — — — — VSMP PLAN \ - , - - ----- - -- -- RIVER'S EDGE \ \ \ \ \ ♦ \ — TREE PROTECTION FENgN ' \ ' , \ \ \ \ / — / / > A Xz fl/ ALBEMARLE COUNTY,V SUBMISSION: \� \\ \ \\ \ ♦ (+ \` '�—FLOC N — 200/ REVISION:100-YR -------------- 1.01/10/2023 ` },``,� , -� ,' ' /' / /' /' // j i FILE NO. �,,, M OF d . / / / // 00"100,11 15.064 EROSION CONTROL PLAN PHASE 3 \\ \\�)\I\\\\\�\ \\ f'' ,. ', ♦, x - Jam- 30 0 30 60 9 .� Scale: 1"=30' tl Source: Va. SWCC Plate 3.11-1 ARIGHT OF WAY DIVERSION (RWD C28 Not To Scale GRAVEL CURB INLET SEDIMENT FIL TER ---------- GRAVEL FIL RUNOFF WATER SEDIMENT CONCRETE fl WIRE MESH FILTERED WATER .4 ,e `ACURB INLET SPECIFIC APPLICATION 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. 5 INLET PROCTION IP) C28 Not To Scale Adhesive Anionic Asphalt Emulsion Latex Emulsion Resin in Water Acrylic Emulsion (Nan -Traffic) Acrylic Emulsion (Traffic) Water Dilution (Adhesive: Water) Application Type of Rate Nozzle Gallons/Acre 7:1 Coarse Spray 1,200 12.5:1 Fine Spray 235 4:1 Fine Spray 300 7:1 Coarse Spray 450 = Coarse Spray 350 2 DUST CONTROL DC C28 Not To Scale PERMANENT SEEDING SPECIFICATIONS February 16 through April 30: Kentucky 31 Fescue - 128 Ibs/acre; Red Top Gross - 2 Ibs/acre; Annual Rye - 20 Ibs/acre- Add 20 Ibs/acre Indian gross when Slopes are greater than 3:1. May 1 through August 15: Kentucky 31 Fescue - 128 Ibs/acre; Red Top Gross - 2 Ibs/acre; Foytoil Millet - 20 Ibs/acre. Add 20 Ibs/acre Indian grass when slopes are greater than 3:1. August 16 through October 31: Kentucky 31 Fescue - 128 IIns/acre; Red Top Gross - 2 Ibs/acre; Annual Rye - 20 Ibs/acre. Add 20 Ibs/acre Indian gross on slopes greater than 3:1. November 1 through February 15: Kentucky 31 Fescue - 128 Ibs/acre; Red Top Grass - 2 Ibs/acre; Winter Rye - 20 Ibs/acre. Add 20 Ibs/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 sail tests. Sail tests may be preformed by the Cooperative Extension Service Son Testing Laboratory at VPI&SU, or by a reputable commercial laboratory" Inform DtlDn concerning the State Sail Testing LaborICI 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 applted: For Permanent Seeding: Seeded areas shall be limed at a rate of 2 tans per ❑cre, and fertilized at a rate of 1,01DO Ibs. per acre of 10-20-ID (1G Ibs. per 1,00D 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 Ibs- per acre of 10-20-10 (10 Ibs. per 1,000 square feet) or equivalent. �I+.E - 70' MIN. -INSTRUCTION ACCESS r3" SM-2A ASPHALT TOP = -11 1 COURS SSS---EXISTING ICI-m-m-Il A A ?X 1 PAVEMENT •A N. 2'A ACGRcGAIE BA:__ PROFILE EXISTING GROUND STONE -- CONSTRUCTION ASPHALT PAVED ACCESS A WASHRACK EXISTING 2X 2% PAVEMENT I.r 2•g 12' MIN.* -MUST EXTEND FULL WIDTH L� I�TO SOSEOVE MEN0.NAGE OF INGRESS AND EGRESS 11 TInT OPERATION TRAIPING DEVICE PLAN :'I`•. POSITNE DRAINAGE TO SEDIMENT iiAPPING DEVICE FILTER CLOTH - A Euiuilumu Hater tap of 1 inch lllllnt be it Called Kith a min di lm 1 uu b bAl oct. -lil vah-e supplyna a wash house with a diatueter of 1.5 inches for adequate constant pees rue, R'aHli water nntst be caned away hone the aihance to mI approcecl setdiu2 ,,uea to Eeuloce seditueut. AB sediment shall be pi evented fi om entel stomt chants, ddc het of Taato Loin <e PAVED WASH RACK rTVAVED WASH RACK C28 Not To Scale 61PERMANENT SEEDING (PS C28 Not To Scale 1 YY�Y�YY. �i � � �i �i �i �i �i �i �i �i �i �i �i �i �i �i �i •i •i •i •i :. W W W• � 70' MIN. 12' MIN.* VDOT 41 �� POSITIVE DRAINAGE COURSE AGGREGATE TO SEDIMENT TRAPPING DEVICE * MUST EXTEND FULL WIDTH PLAN VIEW OF INGRESS AND EGRESS OPERATION " V" SECTION A -A lot 10' MIN EXISTING PAVEMENT 7 10, MIN. io�STONE CONSTRUCTION ENTRANCE (CE) C2$ Not To Scale TABLE MI-B ACC-FPTABLE TEMPORARY SEEDING PLANT MATERIALS -QUICK REFERENCE FOR ALL REGIONS' Rate Planting Dates Species flbs./acre} Sept. 1 - Feb- 15 50150 Mix of Annual Ryegrass (Lulium multi-floruml & 50 - 100 Cereal (Winter) Rye (Seaale cereale) Feb. 16 - Apr. 30 Annual Ryegrass 60 - 100 (Latium multi-florum) May 1 - Aug 31 German Millet 50 (Setaria italica) Source: Va. DSWC s TEMPORARY SEEDING(TS) C28 Not To Scale I4p2 335 TABLE S.. Va. DSWC w•axB 31S-A ORGANIC MNCR MATTJtIMB AND APPLICATION RAMRATES: MUIL'ITFS: Per Axe Per Hall 1R 7 MULCHING MU C2$ Not To Scale NO ll/-tG�7/I111I/I�1 L7A7�Y 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. I I FLOW -I III I.,,. 4" 3. ATTACH THE FILTER FABRIC TO THE WIRE FENCE AND EXTEND IT INTO THE TRENCH. FLOW 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. EXTENSION OF FABRIC .JgW IAND A/� WIRE INTO THE TRENCH. FILTER FABRIC-HW\VII\�� 11 SILT FENCE C28 Not To Scale W. WIRE SUPPORT TYPICAL ORIENTATION OF TREATMENT - 1 (SOIL STABILIZATION BLANKET) BERM WHERE THERE IS A BERM AT THE TOP OF THE SLOPE, BRING THE MATERIAL OVER THE BERM AND AN IT IIIJTII� III III Ir II=1 BEHIND THE BERM. F _ - II II I II-11�111�--118T _ I II�II�II" ON STEEP SLOPES, APPLY PROTECTIVE COVERING PARALLEL TO THE DIRECTION OF FLOW AND ANCHOR SECURELY. EC-2 CENTER Al MAT 9E - - - ELIIINATED WHEN SLOPE - - I IS LESS MAN 4:1 .Illt<TION SLOT 5' 4AX. sou OR FLATTER 044,0- CHECK SLAT Y MAX. STEEPER TAW 4.1 TERMINAL FOLD EDGE AND END JOINTS TO LAP JOINT BE OVERLAPPED 2' MINIMUM. 2" MN. COMBINE TWO ROW OF STAPLES FROM EACH 51111P IN LAP WITH ALTERNATE SPACING- ir. MAX. i w SLOT - ^O ANCHOR SLOT TERMINAL FOLD a" ' CHECK SLOT JUNCTION SLOT BRING MATERIAL GOWN TO I LEVEL AREA BEFORE . _ �-{+-1 TO 2" ES: Nil! NOTTERMINATING THE INSTALLATION. TURN THE ENO <�';.t, APPDXIMATE 200 STAPLES REQUIRED " T 1" UNDER 4" AND STAPLE AT 12" INTERVALS. �"�"�-�' r-jf 0..».. ,..•- , PER 4'% OTS' ROLL. 'r ({�, in 2.AEHOR SLOTS JUNCTION SLOTS AND CHECK SLOTS t0 BE BURIED B" TO 12" Er ADAPTED FROM LUDLOW PRODUCTS BROCHURE GENERAL NOTES: I. ROLLED EROSION CONTROL PRODUCT IS TO BE LOCATED AS INDICATED 4 FOR SOURCES OF APPROVED MATERIAL SEE VDOT'S APPROVED PRODUCTS LIST ON THE PLANS IN ACCOIOANCE WITH THE NUMSIONS SPECIFIED ON TYPCAL SECTION. FOR EC-2 MATERIALS TYPES 1, 2, 3, OR a. 2. "T-TOP" STAPLES OR OTHER MAMIFACTIIRER'S DESIGN APPROVED Of THE ENGINEER MAY BE SUBSTITUTED FOR THE STAPLES SHOWN, 3. WOTH OF MATERIAL MANY VARY FROM MNI" DIMENSION BY INCREMENTS OF PLATE: 3.36-1 4 OR 5 FEET. A COPY a THE ONIGINPL SEALED AND SIGNED DRAWING IS W FIE IN THE CENTRAL OFFICE. SEC-2 MATTING DETAILS C28 / Not To Scale Sediment Trap Design Data PHASE 1 Weir Wet Wet Vol. Bottom Dry Dry Vol. To SA p No. A B C H (ft.) Z (ft.) Length (Aa) Vol. (ft) Cy SA (sq. Vol. (ft2 ) Cy (sq. ft') (ft.) (Req.) (Prov.) ft.) (Req.) (Arco.) 1 383.75 386.0 388.9 3 4.0 7.90 1.31 88.0 2.00 114.5 1083 88.0 3.0 290.6 3747 2 382.0 384.0 386.0 3 3.0 7.90 1.32 88.2 2.0 111.5 1305 88.2 2.0 158.7 2580 3 388.0 390.0 32.0 3 3.0 8.70 1.46 97.6 2.0 11.5 1305 97.6 2.0 158.7 2580 4 386.0 388.0 390.0 3 3.0 11.00 1.83 122.9 2.0 126.4 1500 122.9 2.0 175.1 2816 Sediment Trap Design Data PHASE 2 Weir DA Wet D7 Wet Vol. Bottom Dry D2 Dry Vol- Top SA No. A B C H (ft.) Z (ft.) Length )th (Ace.) (ft') ov) SA (sq. (ft.) Cy (sq. ft.) (Req.) (P (Req) (Prov.) 1 383.75 386.1 388.9 3.8 4.0 10.20 1.70 113.8 2.35 116.7 1017 113.8 2.8 280.6 3747 2 372.0 374.0 376.0 3 3.0 8.00 1.34 89.5 2.0 197.8 2340 89.5 2.0 274.7 4417 3 375.0 377.0 379.0 3 3.0 7.50 1.26 84.2 2.0 197.8 2340 84.2 2.0 274.8 4420 4 375.0 377.0 379.0 3 3.0 10.00 1.84 123.4 2.0 125.4 1305 123.4 2.0 138.8 2580 ORIGINAL 1 Z / GROUND H/ ELEV. EL=C Top Surface Area 1.0' DRY STORAGE D2 _ H 67 CU. YDJACRE `�' EL=B WETSTORAGE 67 CU. YDJACRE D1 (EXCAVATED) FILTER CLOTH GRIGINAL ROUND EL=A Bottom Surface Area ELEV. 'SEE PLATE 3.13-1 COARSE CLASS RIPRAP CROSS SECTION OF OUTLET CLASS I RIPRAP LENGTH (IN FEET) _ 6 X DRAINAGE AREA (IN AC.) DIVERSION DIKE S S l 1 ij COARSE AGGREGATE EXCAVATED AREA FILTER CLOTH **COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5 OUTLET (PERSPECTIVE VIEW) 12 TEMPORARY SEDIMENT TRAP (ST TEMPORARY DIVERSION DIKE _Compacted Soil T 18" min. .............................-Flow 4.5' min. r� DIVERSION DIKE (DD) C2$ / Not To Scale SHIMP ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM AAA TH 0' U rs 1 mtv1p a iQo. g5183 1110123 �e� �`SS'/nlsreT tiC1G VSMP PLAN RIVER'S EDGE ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2022.07.07 REVISION: 1.01 /10/2023 FILE NO. 15.064 EROSION CONTROL PLAN DETAILS C28 / Not To Scale C28