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Home My WebLink AboutWPO201800044 Plan - VSMP 2021-12-07VSMP PLAN AMENDMENT LEGEND EXISTING NEW DESCRIPTION BOUNDARIES BENCHMARK SITE PROPERTY LINE ADJACENT PROPERTY LINE BUILDING SETBACK Ll PARKING SETBACK SITE TEXT 10 10 PARKING COUNT TOPOGRAPHY INDEX CONTOUR - - - - - - - - INTERVAL CONTOUR 311.5 x >2p SPOT ELEVATION 311.5 TC x >2- TOP OF CURB ELEVATION 311.5 TW x >2- TOP OF WALL ELEVATION 311.5 BW 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 !1� HANDICAP PARKING �7►� MATERIAL d CONCRETE RIPRAP --------------------------------------- ASPHALT EC-2 MATTING EC-3 MATTING 0 WETLAND TREELINE X X FENCE UTILITY �( UTILITY POLE m m GUY WIRE oHu 01HU OVERHEAD UTILITY ucu UGu UNDERGROUND UTILITY STORM STORM MANHOLE q q DROP INLET STORM SEWER ® ® ROOF DRAIN SANITARY SANITARY MANHOLE SANITARY SEWER MAIN S S SANITARY SEWER LATERAL WATER W W WATER LINE 0 0 WATER METER 0 o WATER METER VAULT FIRE HYDRANT A A FIRE DEPARTMENT CONNECTION GAS GAS GAS GAS LINE EASEMENTS CONSTRUCTION GRADING ACCESS SIGHT DISTANCE UTILITY STORMWATER FACILITY MAINTENANCE STORMWATER ACCESS DRAINAGE SANITARY WATERLINE GASLINE NOTE: 1. THE SIZE OF THE SYMBOLS MAY VARY FROM WHAT IS SHOWN. ABC BLOCK 1 MASS GRADING -MAJOR AMENDMENT FOR MULTIFAMILY OWNER/DEVELOPER 5th Street Forest LLC 250 W Main Street, Suite 201 Charlottesville, VA 22902 PLAN PREPARATION Shimp Engineering, P.C. 912 East High Street Charlottesville, VA 22902 (434) 227-5140 ZONING Neighborhood Model District ZMA201900003 MAGISTERIAL DISTRICT Samuel Miller & Scottsville SOURCE OF TITLE DB 5145 PG 626 SOURCE OF BOUNDARY AND TOPOGRAPHY Boundary & utilities survey provided by: Brian S. Ray, Roger W. Ray & Assoc. Inc., September 26, 2018 Topographic survey with two (2) foot contours provided by: Terra Engineering & Land Solutions, August 22, 2007, revised November 4, 2009 Topography verified by Shimp Engineering Staff on November 12, 2021 BENCHMARK Datum for topography is NAVD 88 FLOODZONE According to FEMA Flood Insurance Rate Map, effective date May 16, 2016 (Community Panel 51003CO269D), this property is not located within a Zone AE 100-year floodplain. RESERVOIR WATERSHED This site is within the Moores Creek 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. 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 GENERAL CONSTRUCTION NOTES 1. Prior to any construction within any existing right-of-way, including connection to any existing road, a permit shall be obtained from the Virginia Department of Transit (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 P ( ) Y p better are to be acheived. 6. Paved, rip -rap or stabilization amt 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. Backflow prevention is required for all connections to the water main. STORMWATER MANAGEMENT NOTES See Sheet C1 9. 1.64 Pounds of offsite nutrient credits shall be purchased to cover water quality. Water Quantity is addressed by grading the site to achieve all sheetflow runoff. Sheetflow runoff will cause no negative downstream impact. RELEVANT PLANS & NARRATIVE This plan is an amendment to Albemarle Business Campus (ABC) Mass Grading WPO 2018-00044. It is now called Amendment for ABC Block 1 Multifamily. The area corresponds to ABC Block 1. This plan covers the final development of the parcel. This development is concurrent with construction for SDP 2020-00066 and WPO 2020-00058. Waste soil and staging will be stored in areas covered by WP02020-00059 land disturbance permit. EXISTING USE Forest PROPOSED USE Mixed -Use, 25 DUA of residential density proposed in Block 1 LAND USE SCHEDULE EXISTING Area % Building 0 SF 0.0% Pavement 0 SF 0.0% Sidewalk 0 SF 0.0% Open Space 235,224 SF 100.0% Total= 235.224 SF (5.40 ac.) PROPOSED Area % Building 50,970 SF 21.6% Pavement 66,370 SF 28.2% Sidewalk 26,570 SF 11.3% Total Impervious 143,910SF 61.1% Open space 91,476 SF 38.9% Total= 235,224 SF (5.40 ac.) LIMITS OF DISTURBANCE: 5.40 ACRES 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. 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. 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 o slides, sinking, or collapse. 16. The developer shall reserve the right to install, maintain, remove or convert to permanent stormwater management facilities where applicable all erosion control measures required 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) AMENDMENT #2 TO WPO 2018-00044 TAX MAP 76, PARCEL 46A, 54 ALBEMARLE COUNTY, VIRGINIA VICINITY MAP SCALE : 1°=1000' �o- e4 dyy Pd 1 r pe qje c� s ,,,ao,,aa �t RF Clare FranreaQ hti.. `�avrP 'M,n n.d.na, Azalea Park - Park & Ride 2 4 iv_ AZALEA `.� PARK Azalea Park Dog Part The Woodlands Q umueme"I = - Hollday li of Charlonesvllle Park Aparimentsv CharlaResWlle Monur�. kCa rossing9 T a ` i eAP,W.aa .y,M k anon eui,y0 Villas Al Boulhern R,tlgeQ Fifth Street Place O „itw.„a. , Apartments �5TH STREET 1 ©Albemade CWny Flre By" Oak HIII Markel Rescue AtlmlNatrenan Albemarle County ® a OLD LYNCHBURG Department of Social 9 r..00n o.a.o ROAD�1gp6 i a °Prawn Pa y 4 Pgya �L Calvary Chapel Charlonesvllle Kingdom Hall of Q Jehovahs Wnnesses o s a `Covenant School 0 L Boys & Girls Club v Southwood n- 4 SHEET INDEX - 10 SHEETS C1 COVER SHEET C2 EXISTING CONDITIONS C3 EXISTING CONDITIONS C4 SITE LAYOUT C5 UTILITY PLAN C6 GRADING PLAN C7 SWM PROFILES C8 BMP DETAILS C9 ESC NARRATIVE C10 ESC DETAILS C10 SWM PLAN hen9 O + _, Blscwt Run Slate Park 9 IMAGE PROVIDED BY GOOGLE MAPS SHIMP ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. 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OR DRAIN IMV 472 00 #. ±s� / Nv FFE 4 5' _ '-- / / / O \\- - .\TYP. 8" DRAI .', - � 6 ! 2 S \ � @ MINIMUM 2% � - - -.. 6 p /� 7 sA2a, i FDC , ;.... j /� VSMP PLAN AMENDMENT ' w �F1 4" DIP . 2 °' `t Sx6.. 4672p R \ FF FIRE ABC K 1 BEND.a- g`h SS / ..,- /.>+„ _ 6" PORCH - R\' F oo?-/�'-2e GRATE T GRADING - MAJOR S TYP. 12 GRATE r'.•- 3 R ,12 `J':lu .du —ucu .�- TYP. 12 GRATE .. -- DRAIN TO 6" p \� DRAIN Ctg16$TODBM,IN - SINGLE -WALL 8UNA\ Op%P� - uw - ''I�'�4`10 .- "•. � _w - - AMENDMENT FOR � x � 1 I 1 HDPE PIPE 105 5 TYP: 8"-DRAI j �'/ ...'' _ w �ro __ F2 2,800 SF - � 9, � �� '` •�. 4" DI FFE 475.00 - "F 4,F V�20F -`�. ,•' 5/may t;: y��xs\1y s — e� .-: _- .ki ,� ' nfi1A - S �• c`y !- @ MN' ,MU/M 8SOU27 r:�•: ../, /ry :'..\ \ \ I MULTIFAMILY DRAIN kIN � (TYP-) PORCH DRAIN / ALBEMARLE COUNTY, VIRGINIA DC - .{� n4 _ , C. TO-6' SIWGCE-WAC / - �6k `e „GRATE _ •ii. iu '.DPF/PIPE�' \ / SUBMISSION: X u DRAIN ----� - •� /�Ro --/"66 / ---- 2021.1 7 _ .3JT� ao RV L� Ro f _ _ _ — — — — _ — " O RV RD RD Y \ / — \ w — _ — �Ro ®Ro / // _ — — — — — `, REVISION? \ w12 G6AIE _ - - -P-, /"� I — — — — - - - - - \ \ ,ECT \ �� °Uuw—ucuuw—uw—uw uwaw uW STING \ COUNTRY GREE UTE 875 � � � ewueic xroRa Apw ROAD =� \ �eaz ----- V ` FILE NO. _-------__----- 18.004 480 I / Iv vv `/ /%' --"-vv UTILITY PLAN 30 0 30 60 90 Scale: 1"=30' C5_ ♦- 1 �\ I I / \ qO Ji ♦ // ♦ \\ \\t\\ \\ \\\\ 1 11 �/ \\\ \� A \ A•y �G \ ♦♦ \— — — — — — — — — — — — \\yz \ \ \ oy` \\ \ ` \\\ // ��a`k'yo0 \\ ♦♦—_--------�\ + \ \\ \ +u a—w \ � � ..�\ \ 1 \\ \ \ \\ / /// / / /// // // // / / i JI O i / � \\ � b ,�-00 e + N. \\`\ \ / / / / / / �/ / / / / / / i'i' / / \ \ \ 'rt� POD _\ \ // i� \ `` \ \ \ \ \ \ \ / / / / / / / / / / / / / F / / ♦ \ \ \ \ \ �j / / I /''RISERS ' 0 �$ � k5 \ \ \ \ \.� / //////// 'off�e� FF 918 \ \\\ \ A + 6 kc�QOQ /(IRS fr / Ss,. 7 / ` \\ \ \ \\ \ \.. 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DOG PARK 78 \ - 75 - _ 78'0 \ \\ (9) 6�� -::,--.- 7� x 03 / — .,_'., _ , --- — J / m I O 4 — U © I u— /78 \�-R1S€R� „- a ®/ ------ _ 2 7150 ® / m 65„ 63 I I I I / �..Ic N .'S1� 72 ao/ to so — , / / / 6 s° 615�( rY 65 x I I I ✓ 6700 (3) 30 6" -- -_f . ° — 1 "s / sa 71/ 65°B __ \ FFF4 vI27s SF p�Fs \\ 'ISERS ':: 71 ` �6 .. 75 — --� 00 1 3%_ �66 0 FC p \ x oa as — \ 4• /� — _ 66 - 6. g6 ' '✓ �' 81 20 OTp OR \ \ as — 7-, p _ /� 73 T y♦ 73 72 B =46 15 x _ x \\7 3. 1.71 ! VSMP PLAN AMENDMENT27 156150 7x 7675 Z BW , TiM T4 :< v' 46�?p ,p2 ,�--,—,-,,-�,- _ / �� ABC BLOCK 1 MASS 4 MAX. 42" 7 °° 7430 zl4 — 706 ` FFE evvG ( /� / REY WAl — - MA R �853 SEGMENTAL .. 0-7 _✓ 4 '' a}... (7) 6 FF 2 .1 R6F�ppR i' �i�� j 6�3s' - ��' LOCK RETWALL 7 a.'; 74 7478 ,_ i t364 5 3 S P R \C11:- •.= 00 RISERS ZP$ x oo --:` - oe s ..49300_ $CLUBHOUSE s --- _;.: 74.;.. "DOOR 8pN5j5F AMENDMENT FOR ��' GRADING MAJOR 19 :. x 78 7 75 7a 2,800 SF 74 74 1t- . 9,\0 i4. +t5 ONC. WALL / p FFE 475.00 / / 48D ��74 — — — za - �^"'�:. 6' FENCE , , /' ,- / a6 , - � MULTIFAMILY SO LP x h flw •s7�3� F _ _ TW=475�.DO i '� /'�� /- \.:�"-,�ry-• \ ss% 25 /7f11 rid A \ 9'` (373gP �t / ALBEMARLE COUNTY VIRGINIA \ 25 �� c:� . / SUBMISSION: 7 ° � y 6 / _-- \— 2021.1 .07 — — \� �\\ REVISION: \ \ 9 7877 CO STATE ROUTE 875 I \\\ I \ \ \ UNTRY GREEN R ONC. WALL I \ \ \ x "s m,."°" ROAD W. 6' FENCE \ � xxr xs b_zsz num zaz BW=473.0 FILE NO. 18.004 \480\ \ \ \ __ %---\\ ---�\\ GRADING PLAN \ _ 30 0 30 60 90 4- V6Scale: 1"=30' 480 475 470 465 460 455 450 0 2 445 0 M 440 z 435 430 N 425 JATIVE w w a m N ¢ w - m J rRAnFrn rn (n ^ 4lJ x W - w NNFW p O p 1 + opi Z N H 0 i a � � O ul TE a a O MTO o o i 4 Or CJMm p z aNATIVFz --- x da ------------- ----� NDPE AU �z z <va? p � -- --- z - HDPE 0 2. 2% o o o 30" HOPE O 16 13% p z o aO r M N M N M Z = � O 10+50 > 11+00 1 +50 o> z_ >z z 1 STORM SEWER PROFILE AO-A5 C7 HORZ: 1"=30' VERT: 1"=10' 101 480 475 470 I 465 �z 460 455 450. N. NM as 44 12+00 12+50 - _+� - � GRAI nF N p o O p N H as z - - - O O rnrn 1 o rnrno OI NNO] - s > P 10+50 11+00 11+50 00 » 20" SU » zz INV=450.50 zz as (MAINTENANCE) 5 STORM SEWER PROFILE Cl-C4 C7 HORZ: 1"=30' VERT: 1 "=10' 485 480 475 470 465 460 455 8 STORM SEWER PROFILE El-E3 C7 HORZ: 1"=30' VERT: 1 "=10' �85 a a 480 475 470 465 460 .5$55 12+00 z N 455 3 z 450 00 445 0 z 485 480 475 470 465 460 455 450 12+50a45 480 475 470 465 460 455 450 445 440 435 430 13+00 425 485 480 475 N 470 m r 3 465 I w 460 z 455 450 0 445 0 440 a N NEW a GRA wo #3 STONE 116 MC-4 00 STORMTECH CHAMBERS OR QUIVALENT INVERT 452.00 R" RFORATED N-12 HDPE OR EQUIVALENT UNDERDRAIN @ 0.4% - UPPER__ INVERT Nm#3 S T E #3 STONE -449.70 = BOTTOM=44q00 » z -- cV0 a � 11+00 11 +50 2 STORM SEWER PROFILE: BMP 2 C7 HORZ: 1"=30' VERT: 1 "=10' 485 1 1 485 480 475 470 3 465 z 460 455 450 o N NT NM - z -- cV0 a � 11+00 11 +50 2 STORM SEWER PROFILE: BMP 2 C7 HORZ: 1"=30' VERT: 1 "=10' 485 1 1 485 480 475 470 3 465 z 460 455 450 o N NT NM - c cry 2r1 U�t/ ram! rwtltiirii�tPi n n� �!lti>•irr��aty - ttltlir um L4�� 11■ 1 �11N DrummI1�M� 1i6!1lS-l�111_11■ l�FMI "IN tJ ,IL �_IRS 1 : •.� L 480 475 n470 d 9[X 460 455 450 45 4450o zz (MAINTENANCE) 10+50 » -- zz s STORM SEWER PROFILE Cl-C1 A C7 HORZ: 1"=30' VERT: 1"=10' O NM+Or I � o� 3xaa wo �o to 15" HDPE a @ 0.78% > z " 10+00 460 455 450 4445 0+5040 8 STORM SEWER PROFILE F1-F2 C7 HORZ: 1"=30' VERT: 1"=10' M 180°- 480 475 470 465 460 455 450 445 485 480 475 470 465 460 455 450 445 2+00440 480 475 470 465 460 455 450 0 N a 4450 z 440 3 18 MEN I \ o N M o =O� OOyO-1 I�i'9� ¢11 -OM Sea -moo NEW f� +N z o .�ZINp zcn� .87 LF o 00 77.13 LF 15° HDPE ® 0LF .65% o d-OO 1c1" HOPE M M ,P N 47 Y1 L[J � M z z z C z -- - >z z a - N 10+00 10+50 11+00 3 STORM SEWER PROFILE 31-134 C7 HORZ: 1"=30' VERT: 1 "=10' x DDING + C4 rn N N ad 3 a dONE z `~" BEDDING GRADS - (40) MC-4500 STORMTECH CHAMBERS OR EQUIVALENT INVERT 461.00 6" PERFORATED N-12 HDPE OR EQUIVALENT UNDERDRAIN @ 0.4% UPPER o NNo INVERT a ��a ONNOr - _ : BO BMP 1 STONE BE o�oTToM158.00 - BEtOW UNDERNF D _ STONF - Z -- �� .AND IS NOT MODF1_I_FD IN 10+50 11+00 STORM SEWER PROFILE: BMP 1 C7 HORZ: 1"=30' VERT: 1 "=10' 100-YR WSE 458.86- L 1.00' 10-YR WSE 457.50 Q' T5' 1-YR WSE 454.694WEIR WALL TO BE DESIGNED8.45' BY PRECAST MANUFACTURER. WALL TO BE DESIGNED TO - g,Og. -° WTITHSTAND 100-YR HYDROSTATIC PRESSURE a - 9 A4 STRUCTURE & WEIR PLATE DETAIL C7 SCALE: 1"=5' so.01 </ r�x � • -qqw 4 I o�.w "cua ax I Jta 480 475 470 465 460 455 4450 11 +5045 -7 TOP 458.50 IR TOP 457.50 470 w 465 z 460 O N Nrn N 455 � 00 Z 45Q N N 445 440 D2 O r�11� �INII :�Y 1T a \:lit 10+00 480 475 470 465 460 455 450 4445 11 +5040 475 470 465 460 'ACTED iTANDARD 455 450 445 40 10+50 480 475 CE 470 ie. 465 s O w 460 z 455 O 450 a S 445 Z _ NATIVE GRADE B B m n M 1 V O M O p m C!+ \ O O> 00 �P OOJ � O Z N MI 12" GRADE EPARATION 30.85 LF om o0 61,78 ®F15 HDP 0.65% E NN @ 0.65% amm a Z 0 - -- - o > » z - "V 10+00 10+50 11+00 4 STORM SEWER PROFILE 32-B213 C7 HORZ: 1"=30' VERT: 1"=10' 8 STORM SEWER PROFILE D1-D2 C7 HORZ: 1"=30' VERT: 1"=10' VEE NOTCH 455.00 PERSON FOR REFERENCE 3" ORIFICE INV. 448.55 PROVIDE A TRASH RACK FOR THIS ORIFICE WEIR WALL TO BE DESIGNED C3 DI-3B TOP 469.30. BY PRECAST MANUFACTURER. WALL TO BE DESIGNED TO STRUCTURE HAS 60" WtITHSTAND 100-YRj- 0' BASE. WEIR IS OFFSET HYDROSTATIC PRESSURE FROM STRUCTURE CL 100-YR WSE 467.11 WEIR TOP 466.00 0� 10-YR WSE 465.58 r.Oq -I PERSON FOR 1-YR WSE 462.21 REFERENCE STAIRS ON - 3" ORIFICE INV. 459.00 WEIR WALL9-PROVIDE A TRASH RACK FOR THIS ORIFICE NOTE: "EX. GRADES" SHOWN ARE NATIVE, PRE -DEVELOPED GRADE. SITE HAS BEEN CLEARED, GRUBBED AND MASS GRADED. PRE -DEVELOPED GRADES ARE SHOWN FOR REFERENCE, REFER TO EROSION CONTROL SHEETS FOR CURRENT (CLEARED) GRADES. CURRENT GRADES AVERAGE ABOUT 2' HIGHER THAN NEW (PROPOSED) GRADES. COUNTY OFALBEMARLE De{oartmentofCommunity Development Construction Record Drawings (As -built) for VSMP The following is a fist of information required on construction record drawings for stormwater facilities (reference Water Protection Ordinance 17-422). It is preferable that the construction record drawing be prepared by someone other than the designer. Please do not provide design drawings as construction record drawings. A. A signed and dated professional seal of the preparing engineer or surveyor. B. The name and address of the firm and individual preparing the drawings on the title sheet. C. The constructed location of all items associated with each facility, and the inspection records to verify proper dimensions, materials and installation. The items include, but are not limited to the following: 1. Inspection Records and photographs for pipe trenches and bedding, including underdrains. 2. Video Pipe Inspection for any pipes which are not accessible or viewable. 3. Updated Location with geo-coordinates of all facilities. 4. Verified Drainage Area maps for the drainage area treated, and for drainage to the facilities. 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 he required for alterations from the design. 6. Plants, location and type. 7- Plans and profiles for all culvert%, Pipes, Risers, Weirs and Drainage Structures - Display the installed type of drainage structures, culvert/pipe size, weirs, materials, inlets or end treatment(s), inlet and outlet protection, alignment and invert elevations compared to design- 8. Computations: For significant deviations from design, provide sealed computations verifying that the as -built condition is equivalent or better than design. 1). Ditch Lines - Display the constructed location of all ditch lines and channels, including typical sections and linings. 10. Easements - Show all platted easements with dead book references labeled. Facilities and drainage must be within platted easements. Provide copies of recorded documents. I Guardrail, fences or other safety provisions - Display the constructed location of all safely pmvisions; fences, guardrail, including the type, length and applied end lreamtents compared to design. 12. Material lavers - biofilter media, stone layers, sand layers, keyways and cores must be verified as to material types and depths. Include inspection report,;, boring or test pit reports and materials certifications. BioGller media must be an approved state mix. 13. Access roads - show location of access roads, surface treatment, drainage, etc, as applicable. 14. Compaction reports are required to verify fill compaction in dams, 15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning. 480 475 470 465 460 455 450 y40 445 11+50 SHIMP ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM VSMP PLAN AMENDMENT ABC BLOCK 1 MASS GRADING - MAJOR AMENDMENT FOR MULTIFAMILY ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2021.12.07 REVISION: FILE NO. SWM PROFILES 10 C3 STRUCTURE & WEIR PLATE DETAIL Note: Remaining Utility Profiles are C7 SCALE: 1"=5' shown on the Associated Final Site Plan SDP 2021-00065 " 10+00 460 455 450 4445 0+5040 8 STORM SEWER PROFILE F1-F2 C7 HORZ: 1"=30' VERT: 1"=10' M 180°- 480 475 470 465 460 455 450 445 485 480 475 470 465 460 455 450 445 2+00440 480 475 470 465 460 455 450 0 N a 4450 z 440 3 18 MEN I \ o N M o =O� OOyO-1 I�i'9� ¢11 -OM Sea -moo NEW f� +N z o .�ZINp zcn� .87 LF o 00 77.13 LF 15° HDPE ® 0LF .65% o d-OO 1c1" HOPE M M ,P N 47 Y1 L[J � M z z z C z -- - >z z a - N 10+00 10+50 11+00 3 STORM SEWER PROFILE 31-134 C7 HORZ: 1"=30' VERT: 1 "=10' x DDING + C4 rn N N ad 3 a dONE z `~" BEDDING GRADS - (40) MC-4500 STORMTECH CHAMBERS OR EQUIVALENT INVERT 461.00 6" PERFORATED N-12 HDPE OR EQUIVALENT UNDERDRAIN @ 0.4% UPPER o NNo INVERT a ��a ONNOr - _ : BO BMP 1 STONE BE o�oTToM158.00 - BEtOW UNDERNF D _ STONF - Z -- �� .AND IS NOT MODF1_I_FD IN 10+50 11+00 STORM SEWER PROFILE: BMP 1 C7 HORZ: 1"=30' VERT: 1 "=10' 100-YR WSE 458.86- L 1.00' 10-YR WSE 457.50 Q' T5' 1-YR WSE 454.694WEIR WALL TO BE DESIGNED8.45' BY PRECAST MANUFACTURER. WALL TO BE DESIGNED TO - g,Og. -° WTITHSTAND 100-YR HYDROSTATIC PRESSURE a - 9 A4 STRUCTURE & WEIR PLATE DETAIL C7 SCALE: 1"=5' so.01 </ r�x � • -qqw 4 I o�.w "cua ax I Jta 480 475 470 465 460 455 4450 11 +5045 -7 TOP 458.50 IR TOP 457.50 470 w 465 z 460 O N Nrn N 455 � 00 Z 45Q N N 445 440 D2 O r�11� �INII :�Y 1T a \:lit 10+00 480 475 470 465 460 455 450 4445 11 +5040 475 470 465 460 'ACTED iTANDARD 455 450 445 40 10+50 480 475 CE 470 ie. 465 s O w 460 z 455 O 450 a S 445 Z _ NATIVE GRADE B B m n M 1 V O M O p m C!+ \ O O> 00 �P OOJ � O Z N MI 12" GRADE EPARATION 30.85 LF om o0 61,78 ®F15 HDP 0.65% E NN @ 0.65% amm a Z 0 - -- - o > » z - "V 10+00 10+50 11+00 4 STORM SEWER PROFILE 32-B213 C7 HORZ: 1"=30' VERT: 1"=10' 8 STORM SEWER PROFILE D1-D2 C7 HORZ: 1"=30' VERT: 1"=10' VEE NOTCH 455.00 PERSON FOR REFERENCE 3" ORIFICE INV. 448.55 PROVIDE A TRASH RACK FOR THIS ORIFICE WEIR WALL TO BE DESIGNED C3 DI-3B TOP 469.30. BY PRECAST MANUFACTURER. WALL TO BE DESIGNED TO STRUCTURE HAS 60" WtITHSTAND 100-YRj- 0' BASE. WEIR IS OFFSET HYDROSTATIC PRESSURE FROM STRUCTURE CL 100-YR WSE 467.11 WEIR TOP 466.00 0� 10-YR WSE 465.58 r.Oq -I PERSON FOR 1-YR WSE 462.21 REFERENCE STAIRS ON - 3" ORIFICE INV. 459.00 WEIR WALL9-PROVIDE A TRASH RACK FOR THIS ORIFICE NOTE: "EX. GRADES" SHOWN ARE NATIVE, PRE -DEVELOPED GRADE. SITE HAS BEEN CLEARED, GRUBBED AND MASS GRADED. PRE -DEVELOPED GRADES ARE SHOWN FOR REFERENCE, REFER TO EROSION CONTROL SHEETS FOR CURRENT (CLEARED) GRADES. CURRENT GRADES AVERAGE ABOUT 2' HIGHER THAN NEW (PROPOSED) GRADES. COUNTY OFALBEMARLE De{oartmentofCommunity Development Construction Record Drawings (As -built) for VSMP The following is a fist of information required on construction record drawings for stormwater facilities (reference Water Protection Ordinance 17-422). It is preferable that the construction record drawing be prepared by someone other than the designer. Please do not provide design drawings as construction record drawings. A. A signed and dated professional seal of the preparing engineer or surveyor. B. The name and address of the firm and individual preparing the drawings on the title sheet. C. The constructed location of all items associated with each facility, and the inspection records to verify proper dimensions, materials and installation. The items include, but are not limited to the following: 1. Inspection Records and photographs for pipe trenches and bedding, including underdrains. 2. Video Pipe Inspection for any pipes which are not accessible or viewable. 3. Updated Location with geo-coordinates of all facilities. 4. Verified Drainage Area maps for the drainage area treated, and for drainage to the facilities. 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 he required for alterations from the design. 6. Plants, location and type. 7- Plans and profiles for all culvert%, Pipes, Risers, Weirs and Drainage Structures - Display the installed type of drainage structures, culvert/pipe size, weirs, materials, inlets or end treatment(s), inlet and outlet protection, alignment and invert elevations compared to design- 8. Computations: For significant deviations from design, provide sealed computations verifying that the as -built condition is equivalent or better than design. 1). Ditch Lines - Display the constructed location of all ditch lines and channels, including typical sections and linings. 10. Easements - Show all platted easements with dead book references labeled. Facilities and drainage must be within platted easements. Provide copies of recorded documents. I Guardrail, fences or other safety provisions - Display the constructed location of all safely pmvisions; fences, guardrail, including the type, length and applied end lreamtents compared to design. 12. Material lavers - biofilter media, stone layers, sand layers, keyways and cores must be verified as to material types and depths. Include inspection report,;, boring or test pit reports and materials certifications. BioGller media must be an approved state mix. 13. Access roads - show location of access roads, surface treatment, drainage, etc, as applicable. 14. Compaction reports are required to verify fill compaction in dams, 15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning. 480 475 470 465 460 455 450 y40 445 11+50 SHIMP ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM VSMP PLAN AMENDMENT ABC BLOCK 1 MASS GRADING - MAJOR AMENDMENT FOR MULTIFAMILY ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2021.12.07 REVISION: FILE NO. SWM PROFILES 10 C3 STRUCTURE & WEIR PLATE DETAIL Note: Remaining Utility Profiles are C7 SCALE: 1"=5' shown on the Associated Final Site Plan SDP 2021-00065 10+00 10+50 11+00 3 STORM SEWER PROFILE 31-134 C7 HORZ: 1"=30' VERT: 1 "=10' x DDING + C4 rn N N ad 3 a dONE z `~" BEDDING GRADS - (40) MC-4500 STORMTECH CHAMBERS OR EQUIVALENT INVERT 461.00 6" PERFORATED N-12 HDPE OR EQUIVALENT UNDERDRAIN @ 0.4% UPPER o NNo INVERT a ��a ONNOr - _ : BO BMP 1 STONE BE o�oTToM158.00 - BEtOW UNDERNF D _ STONF - Z -- �� .AND IS NOT MODF1_I_FD IN 10+50 11+00 STORM SEWER PROFILE: BMP 1 C7 HORZ: 1"=30' VERT: 1 "=10' 100-YR WSE 458.86- L 1.00' 10-YR WSE 457.50 Q' T5' 1-YR WSE 454.694WEIR WALL TO BE DESIGNED8.45' BY PRECAST MANUFACTURER. WALL TO BE DESIGNED TO - g,Og. -° WTITHSTAND 100-YR HYDROSTATIC PRESSURE a - 9 A4 STRUCTURE & WEIR PLATE DETAIL C7 SCALE: 1"=5' so.01 </ r�x � • -qqw 4 I o�.w "cua ax I Jta 480 475 470 465 460 455 4450 11 +5045 -7 TOP 458.50 IR TOP 457.50 470 w 465 z 460 O N Nrn N 455 � 00 Z 45Q N N 445 440 D2 O r�11� �INII :�Y 1T a \:lit 10+00 480 475 470 465 460 455 450 4445 11 +5040 475 470 465 460 'ACTED iTANDARD 455 450 445 40 10+50 480 475 CE 470 ie. 465 s O w 460 z 455 O 450 a S 445 Z _ NATIVE GRADE B B m n M 1 V O M O p m C!+ \ O O> 00 �P OOJ � O Z N MI 12" GRADE EPARATION 30.85 LF om o0 61,78 ®F15 HDP 0.65% E NN @ 0.65% amm a Z 0 - -- - o > » z - "V 10+00 10+50 11+00 4 STORM SEWER PROFILE 32-B213 C7 HORZ: 1"=30' VERT: 1"=10' 8 STORM SEWER PROFILE D1-D2 C7 HORZ: 1"=30' VERT: 1"=10' VEE NOTCH 455.00 PERSON FOR REFERENCE 3" ORIFICE INV. 448.55 PROVIDE A TRASH RACK FOR THIS ORIFICE WEIR WALL TO BE DESIGNED C3 DI-3B TOP 469.30. BY PRECAST MANUFACTURER. WALL TO BE DESIGNED TO STRUCTURE HAS 60" WtITHSTAND 100-YRj- 0' BASE. WEIR IS OFFSET HYDROSTATIC PRESSURE FROM STRUCTURE CL 100-YR WSE 467.11 WEIR TOP 466.00 0� 10-YR WSE 465.58 r.Oq -I PERSON FOR 1-YR WSE 462.21 REFERENCE STAIRS ON - 3" ORIFICE INV. 459.00 WEIR WALL9-PROVIDE A TRASH RACK FOR THIS ORIFICE NOTE: "EX. GRADES" SHOWN ARE NATIVE, PRE -DEVELOPED GRADE. SITE HAS BEEN CLEARED, GRUBBED AND MASS GRADED. PRE -DEVELOPED GRADES ARE SHOWN FOR REFERENCE, REFER TO EROSION CONTROL SHEETS FOR CURRENT (CLEARED) GRADES. CURRENT GRADES AVERAGE ABOUT 2' HIGHER THAN NEW (PROPOSED) GRADES. COUNTY OFALBEMARLE De{oartmentofCommunity Development Construction Record Drawings (As -built) for VSMP The following is a fist of information required on construction record drawings for stormwater facilities (reference Water Protection Ordinance 17-422). It is preferable that the construction record drawing be prepared by someone other than the designer. Please do not provide design drawings as construction record drawings. A. A signed and dated professional seal of the preparing engineer or surveyor. B. The name and address of the firm and individual preparing the drawings on the title sheet. C. The constructed location of all items associated with each facility, and the inspection records to verify proper dimensions, materials and installation. The items include, but are not limited to the following: 1. Inspection Records and photographs for pipe trenches and bedding, including underdrains. 2. Video Pipe Inspection for any pipes which are not accessible or viewable. 3. Updated Location with geo-coordinates of all facilities. 4. Verified Drainage Area maps for the drainage area treated, and for drainage to the facilities. 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 he required for alterations from the design. 6. Plants, location and type. 7- Plans and profiles for all culvert%, Pipes, Risers, Weirs and Drainage Structures - Display the installed type of drainage structures, culvert/pipe size, weirs, materials, inlets or end treatment(s), inlet and outlet protection, alignment and invert elevations compared to design- 8. Computations: For significant deviations from design, provide sealed computations verifying that the as -built condition is equivalent or better than design. 1). Ditch Lines - Display the constructed location of all ditch lines and channels, including typical sections and linings. 10. Easements - Show all platted easements with dead book references labeled. Facilities and drainage must be within platted easements. Provide copies of recorded documents. I Guardrail, fences or other safety provisions - Display the constructed location of all safely pmvisions; fences, guardrail, including the type, length and applied end lreamtents compared to design. 12. Material lavers - biofilter media, stone layers, sand layers, keyways and cores must be verified as to material types and depths. Include inspection report,;, boring or test pit reports and materials certifications. BioGller media must be an approved state mix. 13. Access roads - show location of access roads, surface treatment, drainage, etc, as applicable. 14. Compaction reports are required to verify fill compaction in dams, 15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning. 480 475 470 465 460 455 450 y40 445 11+50 SHIMP ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM VSMP PLAN AMENDMENT ABC BLOCK 1 MASS GRADING - MAJOR AMENDMENT FOR MULTIFAMILY ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2021.12.07 REVISION: FILE NO. SWM PROFILES 10 C3 STRUCTURE & WEIR PLATE DETAIL Note: Remaining Utility Profiles are C7 SCALE: 1"=5' shown on the Associated Final Site Plan SDP 2021-00065 10+50 11+00 STORM SEWER PROFILE: BMP 1 C7 HORZ: 1"=30' VERT: 1 "=10' 100-YR WSE 458.86- L 1.00' 10-YR WSE 457.50 Q' T5' 1-YR WSE 454.694WEIR WALL TO BE DESIGNED8.45' BY PRECAST MANUFACTURER. WALL TO BE DESIGNED TO - g,Og. -° WTITHSTAND 100-YR HYDROSTATIC PRESSURE a - 9 A4 STRUCTURE & WEIR PLATE DETAIL C7 SCALE: 1"=5' so.01 </ r�x � • -qqw 4 I o�.w "cua ax I Jta 480 475 470 465 460 455 4450 11 +5045 -7 TOP 458.50 IR TOP 457.50 470 w 465 z 460 O N Nrn N 455 � 00 Z 45Q N N 445 440 D2 O r�11� �INII :�Y 1T a \:lit 10+00 480 475 470 465 460 455 450 4445 11 +5040 475 470 465 460 'ACTED iTANDARD 455 450 445 40 10+50 480 475 CE 470 ie. 465 s O w 460 z 455 O 450 a S 445 Z _ NATIVE GRADE B B m n M 1 V O M O p m C!+ \ O O> 00 �P OOJ � O Z N MI 12" GRADE EPARATION 30.85 LF om o0 61,78 ®F15 HDP 0.65% E NN @ 0.65% amm a Z 0 - -- - o > » z - "V 10+00 10+50 11+00 4 STORM SEWER PROFILE 32-B213 C7 HORZ: 1"=30' VERT: 1"=10' 8 STORM SEWER PROFILE D1-D2 C7 HORZ: 1"=30' VERT: 1"=10' VEE NOTCH 455.00 PERSON FOR REFERENCE 3" ORIFICE INV. 448.55 PROVIDE A TRASH RACK FOR THIS ORIFICE WEIR WALL TO BE DESIGNED C3 DI-3B TOP 469.30. BY PRECAST MANUFACTURER. WALL TO BE DESIGNED TO STRUCTURE HAS 60" WtITHSTAND 100-YRj- 0' BASE. WEIR IS OFFSET HYDROSTATIC PRESSURE FROM STRUCTURE CL 100-YR WSE 467.11 WEIR TOP 466.00 0� 10-YR WSE 465.58 r.Oq -I PERSON FOR 1-YR WSE 462.21 REFERENCE STAIRS ON - 3" ORIFICE INV. 459.00 WEIR WALL9-PROVIDE A TRASH RACK FOR THIS ORIFICE NOTE: "EX. GRADES" SHOWN ARE NATIVE, PRE -DEVELOPED GRADE. SITE HAS BEEN CLEARED, GRUBBED AND MASS GRADED. PRE -DEVELOPED GRADES ARE SHOWN FOR REFERENCE, REFER TO EROSION CONTROL SHEETS FOR CURRENT (CLEARED) GRADES. CURRENT GRADES AVERAGE ABOUT 2' HIGHER THAN NEW (PROPOSED) GRADES. COUNTY OFALBEMARLE De{oartmentofCommunity Development Construction Record Drawings (As -built) for VSMP The following is a fist of information required on construction record drawings for stormwater facilities (reference Water Protection Ordinance 17-422). It is preferable that the construction record drawing be prepared by someone other than the designer. Please do not provide design drawings as construction record drawings. A. A signed and dated professional seal of the preparing engineer or surveyor. B. The name and address of the firm and individual preparing the drawings on the title sheet. C. The constructed location of all items associated with each facility, and the inspection records to verify proper dimensions, materials and installation. The items include, but are not limited to the following: 1. Inspection Records and photographs for pipe trenches and bedding, including underdrains. 2. Video Pipe Inspection for any pipes which are not accessible or viewable. 3. Updated Location with geo-coordinates of all facilities. 4. Verified Drainage Area maps for the drainage area treated, and for drainage to the facilities. 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 he required for alterations from the design. 6. Plants, location and type. 7- Plans and profiles for all culvert%, Pipes, Risers, Weirs and Drainage Structures - Display the installed type of drainage structures, culvert/pipe size, weirs, materials, inlets or end treatment(s), inlet and outlet protection, alignment and invert elevations compared to design- 8. Computations: For significant deviations from design, provide sealed computations verifying that the as -built condition is equivalent or better than design. 1). Ditch Lines - Display the constructed location of all ditch lines and channels, including typical sections and linings. 10. Easements - Show all platted easements with dead book references labeled. Facilities and drainage must be within platted easements. Provide copies of recorded documents. I Guardrail, fences or other safety provisions - Display the constructed location of all safely pmvisions; fences, guardrail, including the type, length and applied end lreamtents compared to design. 12. Material lavers - biofilter media, stone layers, sand layers, keyways and cores must be verified as to material types and depths. Include inspection report,;, boring or test pit reports and materials certifications. BioGller media must be an approved state mix. 13. Access roads - show location of access roads, surface treatment, drainage, etc, as applicable. 14. Compaction reports are required to verify fill compaction in dams, 15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning. 480 475 470 465 460 455 450 y40 445 11+50 SHIMP ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM VSMP PLAN AMENDMENT ABC BLOCK 1 MASS GRADING - MAJOR AMENDMENT FOR MULTIFAMILY ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2021.12.07 REVISION: FILE NO. SWM PROFILES 10 C3 STRUCTURE & WEIR PLATE DETAIL Note: Remaining Utility Profiles are C7 SCALE: 1"=5' shown on the Associated Final Site Plan SDP 2021-00065 9 A4 STRUCTURE & WEIR PLATE DETAIL C7 SCALE: 1"=5' so.01 </ r�x � • -qqw 4 I o�.w "cua ax I Jta 480 475 470 465 460 455 4450 11 +5045 -7 TOP 458.50 IR TOP 457.50 470 w 465 z 460 O N Nrn N 455 � 00 Z 45Q N N 445 440 D2 O r�11� �INII :�Y 1T a \:lit 10+00 480 475 470 465 460 455 450 4445 11 +5040 475 470 465 460 'ACTED iTANDARD 455 450 445 40 10+50 480 475 CE 470 ie. 465 s O w 460 z 455 O 450 a S 445 Z _ NATIVE GRADE B B m n M 1 V O M O p m C!+ \ O O> 00 �P OOJ � O Z N MI 12" GRADE EPARATION 30.85 LF om o0 61,78 ®F15 HDP 0.65% E NN @ 0.65% amm a Z 0 - -- - o > » z - "V 10+00 10+50 11+00 4 STORM SEWER PROFILE 32-B213 C7 HORZ: 1"=30' VERT: 1"=10' 8 STORM SEWER PROFILE D1-D2 C7 HORZ: 1"=30' VERT: 1"=10' VEE NOTCH 455.00 PERSON FOR REFERENCE 3" ORIFICE INV. 448.55 PROVIDE A TRASH RACK FOR THIS ORIFICE WEIR WALL TO BE DESIGNED C3 DI-3B TOP 469.30. BY PRECAST MANUFACTURER. WALL TO BE DESIGNED TO STRUCTURE HAS 60" WtITHSTAND 100-YRj- 0' BASE. WEIR IS OFFSET HYDROSTATIC PRESSURE FROM STRUCTURE CL 100-YR WSE 467.11 WEIR TOP 466.00 0� 10-YR WSE 465.58 r.Oq -I PERSON FOR 1-YR WSE 462.21 REFERENCE STAIRS ON - 3" ORIFICE INV. 459.00 WEIR WALL9-PROVIDE A TRASH RACK FOR THIS ORIFICE NOTE: "EX. GRADES" SHOWN ARE NATIVE, PRE -DEVELOPED GRADE. SITE HAS BEEN CLEARED, GRUBBED AND MASS GRADED. PRE -DEVELOPED GRADES ARE SHOWN FOR REFERENCE, REFER TO EROSION CONTROL SHEETS FOR CURRENT (CLEARED) GRADES. CURRENT GRADES AVERAGE ABOUT 2' HIGHER THAN NEW (PROPOSED) GRADES. COUNTY OFALBEMARLE De{oartmentofCommunity Development Construction Record Drawings (As -built) for VSMP The following is a fist of information required on construction record drawings for stormwater facilities (reference Water Protection Ordinance 17-422). It is preferable that the construction record drawing be prepared by someone other than the designer. Please do not provide design drawings as construction record drawings. A. A signed and dated professional seal of the preparing engineer or surveyor. B. The name and address of the firm and individual preparing the drawings on the title sheet. C. The constructed location of all items associated with each facility, and the inspection records to verify proper dimensions, materials and installation. The items include, but are not limited to the following: 1. Inspection Records and photographs for pipe trenches and bedding, including underdrains. 2. Video Pipe Inspection for any pipes which are not accessible or viewable. 3. Updated Location with geo-coordinates of all facilities. 4. Verified Drainage Area maps for the drainage area treated, and for drainage to the facilities. 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 he required for alterations from the design. 6. Plants, location and type. 7- Plans and profiles for all culvert%, Pipes, Risers, Weirs and Drainage Structures - Display the installed type of drainage structures, culvert/pipe size, weirs, materials, inlets or end treatment(s), inlet and outlet protection, alignment and invert elevations compared to design- 8. Computations: For significant deviations from design, provide sealed computations verifying that the as -built condition is equivalent or better than design. 1). Ditch Lines - Display the constructed location of all ditch lines and channels, including typical sections and linings. 10. Easements - Show all platted easements with dead book references labeled. Facilities and drainage must be within platted easements. Provide copies of recorded documents. I Guardrail, fences or other safety provisions - Display the constructed location of all safely pmvisions; fences, guardrail, including the type, length and applied end lreamtents compared to design. 12. Material lavers - biofilter media, stone layers, sand layers, keyways and cores must be verified as to material types and depths. Include inspection report,;, boring or test pit reports and materials certifications. BioGller media must be an approved state mix. 13. Access roads - show location of access roads, surface treatment, drainage, etc, as applicable. 14. Compaction reports are required to verify fill compaction in dams, 15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning. 480 475 470 465 460 455 450 y40 445 11+50 SHIMP ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM VSMP PLAN AMENDMENT ABC BLOCK 1 MASS GRADING - MAJOR AMENDMENT FOR MULTIFAMILY ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2021.12.07 REVISION: FILE NO. SWM PROFILES 10 C3 STRUCTURE & WEIR PLATE DETAIL Note: Remaining Utility Profiles are C7 SCALE: 1"=5' shown on the Associated Final Site Plan SDP 2021-00065 10+00 480 475 470 465 460 455 450 4445 11 +5040 475 470 465 460 'ACTED iTANDARD 455 450 445 40 10+50 480 475 CE 470 ie. 465 s O w 460 z 455 O 450 a S 445 Z _ NATIVE GRADE B B m n M 1 V O M O p m C!+ \ O O> 00 �P OOJ � O Z N MI 12" GRADE EPARATION 30.85 LF om o0 61,78 ®F15 HDP 0.65% E NN @ 0.65% amm a Z 0 - -- - o > » z - "V 10+00 10+50 11+00 4 STORM SEWER PROFILE 32-B213 C7 HORZ: 1"=30' VERT: 1"=10' 8 STORM SEWER PROFILE D1-D2 C7 HORZ: 1"=30' VERT: 1"=10' VEE NOTCH 455.00 PERSON FOR REFERENCE 3" ORIFICE INV. 448.55 PROVIDE A TRASH RACK FOR THIS ORIFICE WEIR WALL TO BE DESIGNED C3 DI-3B TOP 469.30. BY PRECAST MANUFACTURER. WALL TO BE DESIGNED TO STRUCTURE HAS 60" WtITHSTAND 100-YRj- 0' BASE. WEIR IS OFFSET HYDROSTATIC PRESSURE FROM STRUCTURE CL 100-YR WSE 467.11 WEIR TOP 466.00 0� 10-YR WSE 465.58 r.Oq -I PERSON FOR 1-YR WSE 462.21 REFERENCE STAIRS ON - 3" ORIFICE INV. 459.00 WEIR WALL9-PROVIDE A TRASH RACK FOR THIS ORIFICE NOTE: "EX. GRADES" SHOWN ARE NATIVE, PRE -DEVELOPED GRADE. SITE HAS BEEN CLEARED, GRUBBED AND MASS GRADED. PRE -DEVELOPED GRADES ARE SHOWN FOR REFERENCE, REFER TO EROSION CONTROL SHEETS FOR CURRENT (CLEARED) GRADES. CURRENT GRADES AVERAGE ABOUT 2' HIGHER THAN NEW (PROPOSED) GRADES. COUNTY OFALBEMARLE De{oartmentofCommunity Development Construction Record Drawings (As -built) for VSMP The following is a fist of information required on construction record drawings for stormwater facilities (reference Water Protection Ordinance 17-422). It is preferable that the construction record drawing be prepared by someone other than the designer. Please do not provide design drawings as construction record drawings. A. A signed and dated professional seal of the preparing engineer or surveyor. B. The name and address of the firm and individual preparing the drawings on the title sheet. C. The constructed location of all items associated with each facility, and the inspection records to verify proper dimensions, materials and installation. The items include, but are not limited to the following: 1. Inspection Records and photographs for pipe trenches and bedding, including underdrains. 2. Video Pipe Inspection for any pipes which are not accessible or viewable. 3. Updated Location with geo-coordinates of all facilities. 4. Verified Drainage Area maps for the drainage area treated, and for drainage to the facilities. 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 he required for alterations from the design. 6. Plants, location and type. 7- Plans and profiles for all culvert%, Pipes, Risers, Weirs and Drainage Structures - Display the installed type of drainage structures, culvert/pipe size, weirs, materials, inlets or end treatment(s), inlet and outlet protection, alignment and invert elevations compared to design- 8. Computations: For significant deviations from design, provide sealed computations verifying that the as -built condition is equivalent or better than design. 1). Ditch Lines - Display the constructed location of all ditch lines and channels, including typical sections and linings. 10. Easements - Show all platted easements with dead book references labeled. Facilities and drainage must be within platted easements. Provide copies of recorded documents. I Guardrail, fences or other safety provisions - Display the constructed location of all safely pmvisions; fences, guardrail, including the type, length and applied end lreamtents compared to design. 12. Material lavers - biofilter media, stone layers, sand layers, keyways and cores must be verified as to material types and depths. Include inspection report,;, boring or test pit reports and materials certifications. BioGller media must be an approved state mix. 13. Access roads - show location of access roads, surface treatment, drainage, etc, as applicable. 14. Compaction reports are required to verify fill compaction in dams, 15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning. 480 475 470 465 460 455 450 y40 445 11+50 SHIMP ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM VSMP PLAN AMENDMENT ABC BLOCK 1 MASS GRADING - MAJOR AMENDMENT FOR MULTIFAMILY ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2021.12.07 REVISION: FILE NO. SWM PROFILES 10 C3 STRUCTURE & WEIR PLATE DETAIL Note: Remaining Utility Profiles are C7 SCALE: 1"=5' shown on the Associated Final Site Plan SDP 2021-00065 "V 10+00 10+50 11+00 4 STORM SEWER PROFILE 32-B213 C7 HORZ: 1"=30' VERT: 1"=10' 8 STORM SEWER PROFILE D1-D2 C7 HORZ: 1"=30' VERT: 1"=10' VEE NOTCH 455.00 PERSON FOR REFERENCE 3" ORIFICE INV. 448.55 PROVIDE A TRASH RACK FOR THIS ORIFICE WEIR WALL TO BE DESIGNED C3 DI-3B TOP 469.30. BY PRECAST MANUFACTURER. WALL TO BE DESIGNED TO STRUCTURE HAS 60" WtITHSTAND 100-YRj- 0' BASE. WEIR IS OFFSET HYDROSTATIC PRESSURE FROM STRUCTURE CL 100-YR WSE 467.11 WEIR TOP 466.00 0� 10-YR WSE 465.58 r.Oq -I PERSON FOR 1-YR WSE 462.21 REFERENCE STAIRS ON - 3" ORIFICE INV. 459.00 WEIR WALL9-PROVIDE A TRASH RACK FOR THIS ORIFICE NOTE: "EX. GRADES" SHOWN ARE NATIVE, PRE -DEVELOPED GRADE. SITE HAS BEEN CLEARED, GRUBBED AND MASS GRADED. PRE -DEVELOPED GRADES ARE SHOWN FOR REFERENCE, REFER TO EROSION CONTROL SHEETS FOR CURRENT (CLEARED) GRADES. CURRENT GRADES AVERAGE ABOUT 2' HIGHER THAN NEW (PROPOSED) GRADES. COUNTY OFALBEMARLE De{oartmentofCommunity Development Construction Record Drawings (As -built) for VSMP The following is a fist of information required on construction record drawings for stormwater facilities (reference Water Protection Ordinance 17-422). It is preferable that the construction record drawing be prepared by someone other than the designer. Please do not provide design drawings as construction record drawings. A. A signed and dated professional seal of the preparing engineer or surveyor. B. The name and address of the firm and individual preparing the drawings on the title sheet. C. The constructed location of all items associated with each facility, and the inspection records to verify proper dimensions, materials and installation. The items include, but are not limited to the following: 1. Inspection Records and photographs for pipe trenches and bedding, including underdrains. 2. Video Pipe Inspection for any pipes which are not accessible or viewable. 3. Updated Location with geo-coordinates of all facilities. 4. Verified Drainage Area maps for the drainage area treated, and for drainage to the facilities. 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 he required for alterations from the design. 6. Plants, location and type. 7- Plans and profiles for all culvert%, Pipes, Risers, Weirs and Drainage Structures - Display the installed type of drainage structures, culvert/pipe size, weirs, materials, inlets or end treatment(s), inlet and outlet protection, alignment and invert elevations compared to design- 8. Computations: For significant deviations from design, provide sealed computations verifying that the as -built condition is equivalent or better than design. 1). Ditch Lines - Display the constructed location of all ditch lines and channels, including typical sections and linings. 10. Easements - Show all platted easements with dead book references labeled. Facilities and drainage must be within platted easements. Provide copies of recorded documents. I Guardrail, fences or other safety provisions - Display the constructed location of all safely pmvisions; fences, guardrail, including the type, length and applied end lreamtents compared to design. 12. Material lavers - biofilter media, stone layers, sand layers, keyways and cores must be verified as to material types and depths. Include inspection report,;, boring or test pit reports and materials certifications. BioGller media must be an approved state mix. 13. Access roads - show location of access roads, surface treatment, drainage, etc, as applicable. 14. Compaction reports are required to verify fill compaction in dams, 15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning. 480 475 470 465 460 455 450 y40 445 11+50 SHIMP ENGINEERING LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM VSMP PLAN AMENDMENT ABC BLOCK 1 MASS GRADING - MAJOR AMENDMENT FOR MULTIFAMILY ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2021.12.07 REVISION: FILE NO. SWM PROFILES 10 C3 STRUCTURE & WEIR PLATE DETAIL Note: Remaining Utility Profiles are C7 SCALE: 1"=5' shown on the Associated Final Site Plan SDP 2021-00065 IS-1 ES-2 SL-1 85 S/RS • r C-C TYP. CD-1 PAY LINE 95 BNIB I EW-12 • r C-C TYR. TOP O CUT ITYRCAL) PAY LINE LE TN O PIPE C E •; .: •.:•; r'• Clli DOUBTT rtWE TO pNETER E-PAVEMENT BEGIN WITH 45- �9 DIAMETER APPROK. 2'/LH I..:•I_:'.I-.:I-.I; I. 1_I _L: .' ., I::• _- � DITCH LIME EIBOW // . SECTION a sLORE j SHAPE TO ELEVATION �.PRP INK SECTION JJJ--- SIDE I I I I I r• TT T' COMBINATION UNDERDRAIN CD-1 AT LOWER END OF CUTS Of PA LOIRGEST PIE.°F _ TRop AHED we A ____ A e e NIT SHAPE TO I •:• I I I I I 3r DIAMETR e' CENTER TYPE `SELECT u SECTION TRAVEL LAWS �•�j5 { CONTOUR 1• I / _� OF PIPE r_r_T__T I ALTERNATE CONNECTION 1T " � � � I I TRENCH PLACEMENT EIX£ OF PAVELENT PAY ET FOR 1 I I I I I I TT N OUTLET PIPE TO SHNOLLOER LINE BEGIN WITH 45• I i TYPICAL CROSS-SECTION TOE PLATE: rrrTTT7 l TT�•.. 'F PAVEMENT suRFACE Y BASE DF T1WW OE OF FILL •• .F SUBBASE / I KwMal) �o �a o- t/ (TYPICAL) j I SKIRT SECTKKI E� - - / gNEIv5DH5 "o {5J IDGRECATE, EB AGGREGATE OR CRUSHED I D .. AAUP A WE 9EET TIRgQE55 .•'••' ''•: t• IN p-,VSS MEETING x8 GRADATION REQUIREt.OIiS. �/� • Y:''.: DIAMETER STEEL ALIYNUN A B N E W C STRUCTURE SE ,MD GEOTENCE E MANAGE FABRIC PLAN VIEW r TOIL ANAL I. Ta. T " rW. r• TOIL. •PLAN • STRI TMIE SIZE MID •• PLAN ICI (PLACEMENT OF CD-1 COMBINATION UNDERDRAIN) 12" .064" .ppp" fi" 2r 24QI-- 9 OF OUTLETBRFE TO INVERT %. 5" 4• .0l9" T" 28• 1P SECTION A -A ^ + T i°" .oer .m. Jr " 24' OR W 2r .06r .pep• 3e- 4 ^ zr 24^ .064` .060' IO" A" 4r 24` •4 •,: �- PAVEMENT SURFACE B BASE .064" 0>5" 1 " TRArRlnax ETwEEx PLAN 2rw3o^ '. sr " 2r .,.•. ,... �.: ... r;.: •" o -(CEMENT OR CEMENT STABILIZED SUBBASE PDF RENT SZs wHEN METHOD OF TREATMENT IN DROP INLETS Der 075" u- W" 6" e e e e DIFFERENT SIZES OF 42" .060' .Epp 16" 6r •• 36" - F-SELECT MATERIAL TYPEIOR SLBGRIDE PIPES NE EHOWNTERED. �e 48" .O6r .10w 15" >r ^ 31" LASS A3 CONCRETE CLASS m CONCRETE •� (CEMENT m LIME STABILIZED) 54" .O.OJ9" M" 36" W57 AGGREGATE, 88 AGGREGATE OR CRUSHED fi0" AGSM"L0J9" Y/.IA" 0" BT' H' S6" �o°oYo Yo 6 SECTION A -A DRAWMce 0 An MEETING RB GRADATION REQUIREMENTS. GENERAL NOTES SECTION B-B FIH41C NOTES1 `\ 1. TS• 1. LOCATE SAT THIS Y INDICATED COMBINATION UNDERDRAIN WILL NOT BE SHAPING WI MANHOLE AND INLET INVERTS R ACCORDANCE WITH \ NOTES 1. THE HEMOND SAFETYUM sLAS HUT 5 To BE EYED ONCYNAGS WHEN PTON. SPECIFIED N THE PLANS LOCATED AT THIS MINT WHEN ACTH SUBBASE AND WBGRME IRE STABILIZED. _ _ _ _ _ ON THE DRAINAGE SUMMARY SHEET NID/Olt THE DRNNIAE OESCRFTION FOR uNNOLES THIS DRAWING OR IS TO APPLY TO THOSE STRUCTURES SPECIFIED ` SLOPE TO GRAN - - L TOE PLATE TO E PUNCHED TO MATCH ROLES N SKIRT W. IA" GALVANIZED BOLTS TO UINJTION BOXES AN) DROP NETS WITH HEIGHTS NEATER THAN I2 FEET, TIE SPACTIG OF 2. TRENCH SHILL E FILLED WITH IGCRECATE ND TNiOUgLY HAND TARRED TO ON RIMS OR WHERE INVERT OF PIPE b ABOVE INVERT OF TO INVERT DF FWASED. LENGTH O TOE PLATE S N lO' FOR IT" TO 30" DIAMETER PPE A10 W 22" N)JACENT SMtTY SL/HS SHALL E B'TO 12'WITH NO SAFETY SLAB LOCATED WITHIN 5 FEET INSURE WHPADTNESS. STRUCTURE. OUTLET PIPE FOR S6" TO W" DIAMETER PPE. OF THE TOP OR BOTTOM OF THE STRUCTRE. SAFETY SLABS SHALL NOT BE LOCATED BELOW NON -PERFORATED OUTLET PIPE 3. OUTLET WE SHALL MGM AT THE EDGE OF THE TRAVEL LINE PAVEMENT AND MANHOLE OR DROP IN -ET IS TO BE FORMED AND CONSTRUCTED MY NET FIRE OF W" OWEfER OR GREATER. SHAUL E RAPED ON A MADE PMALLEL TO THE SHOULDER SLOPE 2 XMIN. (3 X IN ACCORDANCE WITH APPLICABLE STANDARD OR SPECIAL DRAWING. 1. SORT SECTION IY' TO Sa' DIAMETER WE TO E MARE M pE PIECE, DESIRABLE) BRAE. THE INVERT SHAPING AS DETAILED HEREON IS TO CONSIST OF A 2. THE COST O THE SL-1 S INCLUDED N THE COST OF THE STRUCTURE. SEE CAST N RAGE DRAWINGS PORTLAND CEMENT CONCRETE MIX CONFORMING TO CLASS AT OR / / e ::,•...,. - 3. MRi SECTION FOR JB" TO 54- DIAMETER PIPE MAY BE MADE FROM TWO SHEETS JOINED BY FOR FIRTER DETAILS `MUSING STRENGTH 4. ON CRIB AND WTTER SECTIONS. WHERE IT S IMPOSSIBLE TO OTHERWISE PROVIDE UP TO 4' EXCEPT THAT 23% OF COARSE AGGREGATE MAY / / _ ^'n . , - I - = PoVEIING 01R BOLTING ON CENTER LINE. W" MAY E CONSTRUCTED N 3 FECES. J. OT£NSWIERENMRJGS CIBLE. BE STAGGERED �OUSTICLEONE SRI-T1E I+OCCOTftpN0.YBRE. TO THE _ 85 BAPS 8 r C-C Tri. T� O WE MN.T. {" NOD) DIAMETER Mw.T. 8- INOY. pAME1ER IOUTLETSR OR MIND E MANS, THEY ME TO BE LOCATED SO AS TO MAN INTO DROP CLASS OR, IN DIAMETER AND CONSIST OF STONE, BROKEN BRFJ(, _ % - - - - - - - - - 4. CONNECTOR SECTION, CORNER RATE ARID TOE PLATE TO BE SINE SHEET THICKNESS AS SKIT. BRA%EN CONCRETE OR BROKEN YM CONCRETE BLOCK. THE SURFACE -�. , 4. SAFETY SLAB MY BE CAST-N-RACE OR PRECAST. CAST -IN -PLACE CONCRETE TO E SMOOTH WALL PVC .IOS 0.153 SHALL BE LEFT SMOOTH BY HEMS OF HMO TROWELLING. NONE I I .. .. 5. ON SUPERELEVATED SECTIONS. TRENCH S TO E UNDER ENTIRE PAVEMENT AREA OF THE COARSE AGGREGATE SMALL REMAIN EXPOSED. • • 5. UID-SECTION AD FITTNGS ME TO E STEEL FOR USE WIN STEEL WE. MASS AS (3000 MD. PRECAST CONCRETE IS TO BE M f40DO M. RENFORCNG '• SLIOOTX WM1 PE TO P9 Nifty TO P9 KBfM WITH OUTLET WE ON LOW 510E ONLY. • TOE STEEL TO E IN ACCORDANCE WITH JUNIOR M31.y, ii'•, '• RATE 6. EID-SECTON AND FITTINGS ARE TO E MOMNM ALLOY FOR 115E WITH MIIMGM ALLOY PPE. `.'i r'. •e 'i •. . 'e'''r . DETAILS OF INVERT SHAPING AS SHOWN HEREON ME FOR EXAMPLE - 8. INVERT ELEVATION AT OUTLET END O OUTLET PIPE TO E A MINMUN O 1'-0" MOVE PURPOSES ONLY. EACH MANHOLE OR DROP INLET IS M E SHAPED - • • • 4 5. ACCESS OPENINGS MAY E 30" EKING SH BR BE SQUARE. WHEN STRUCTURE WIDTH S INVFAT ELEVATION OF RECEIVING DRAINAGE DITCH OR STRUCTURE. INDIVIDUALLY TO BEST FIT THE PARTICULAR INLET AND OUTLET NOLfS ON rt+CENTRED-YA%, >. pnER THE STEEL OR MLULMIY END-SECTgN DETAILED MAY E USED iM RASED WE SIZES LESS THAT 3p+THE IGCE55 OPENING SWILL E ECTMGLLNt (STRUCTURE WOTH BY CONFIGURATION AND FLOW LINES. SHOWN H SITE PC -I M AN APPROVED MASTIC END-SECTbx MAY E USED. 30" LONG). ). ALL CONVECTIONS RUSHING WAS. ETC.1 WITHIN PAY LT PI FOR OUTLET PPE ARE TO SECTION B-B B. WERE FLARED OD-YCTICN ARE TO E USED WITH ASPHALT COATED AND PAVED METAL N WNA TIOQE55 aN - NpEb E OF THE SASE CRUSHING STRENGTH AS THE OUTLET PIPE. PLAN PIPE. END SECTIONS DO WT NEED TOE COATED BR PAVED. TYPICAL PRECAST UNIT MMM TESTED ACCORDING TO ASIAI D-2N2 AT 5%DEFLECTION. 8. OUTLET PIPE TO BE SECURELY CONNECTED TO EW-120R OTHER DRAINAGE METHOD OF TREATMENT IN MANHOLES ELEVATION STRUCTURE. VOOT SPECIFICATION SREIDFICATOHN VDC]T SPEpFICATION VAT 9PEaFICATION STANDARD METHOD OF SHAPING REFERENCE REFERENCE FLARED END SECTION �"OaF TYPICAL CONCRETE SAFETY SLAB FOR DROP INLETS, REFERENCE RDA) AND BRIDGE STANDARDS STANDARD COMBINATION UNDERDRAIN REFERENCE ROM AND BRIDGE REASON STANDARDS MANHOLE & INLET INVERTS 12" - 60" CORRUGATED PIPE CULVERTS RDA) AND BRIDGE STANHMET I OS ROM AND BRIDGE STMONDA MANHOLES AND JUNCTION BOXES 232 SHEET 1 aF 1 REvmon DATE 302 30z RDv1soAN DATE SHEET 1 G I SHEET 1 of 1 REWs1ox PATE 3a2 SHEET 1 OF 1 REVISION DATE (AT LOWER END OF CUTS) WT b6.08 VIRGINIA DEPARTMENT OF TRMSPBRTATION VRIAIU EPN4TIEM OF TRANSPORTATION D2.OJ 108.% VIRQNL OEPIRl1ENT Di TRNBPORfATICN 108. VIRGINIA DEPARTMENT OF TRANSPORTATION 701 DI-3A, 3B, 3C CD-2 EW-1,tA LW-12 EXPANSION KEYED ST! FOR DETAILS O INLET JOINT JOIN BAPS = APPROACH % SEE STMDMD IC-2. ` ILH JOINT CUTTER PAVE�OUTLET PPE 3ED HONE 1 EVE` SLOT DETNBAPS G y. 2.. .. "' GUTTEAEE LIYTS OF PAY Fdt sxME ro E TBR a-------E%PANDEO STEEL m SION JOINT- BACH OF 510EwESM IiLATTENED) FOR REAL I Y BAR - SUBBASEBEVELED r- m BAPS B r - 2_ _ = HMDWMEWIIX LIOXTM •• MS F c i BAPS F CLOTH LE I EDGE O PAVEMENT ELMI 1 - wEEP HOLE. _ L-� DO WT c _ _ _-_-_-___ _- A A 1 I - 'OW SEE NOTES -1 - t- EVER a COMBINATION UNDERDRAIN CD-2 ON FILLS BO• TRAVEL L NES • INVERT - " - X- l+�_-_-_-_F�_- _ 1 6i - ", W m CENTER ILINE SEMT SECTION I I'N _ _ _ _ _ _ dthhAttt.,. :..... , fWRH TAPE 15ELE T MATEPoALI EDGE OF PAVEMENT M1O"1 2'b" - STEPS'SE 1 1 - m it ° Ms p M F BMA FACE OF CURB N°TE s TRENCH PLACEMENT sxoILOEN uE L J 1. C p -� ISOMETRIC '" NCR K (CONTROL JOINT GUTTER LRACH CONTROL JMNi a� - I- Y MlrLl TOE O- FILL. -1 2'-a' }•_O�• -PAVEMENT SURFACE Y BASE NOTES: 1. "H" MAY BE REDUCED UNTIL -X- REACHES A MINIMUM OF 4" WHERE �Y,� � 6-MIN. PLAN SECTION A -A o 91Ba••r / LIMITS O PAY FOR ENDWALL WOULD PROTRUDE ABOVE SHOULDER LINE. 8. BEVEL EODE IS REOURED ON TIE EN)WALL Ai Tf INLET EN] O THE I-_ 0 0 0 0 0 0 o OUTLET PIPE N ND CASE SHNL TOP M' ENI PROJECT MOVE FILL SLOPE, CULVERT (WHERE THE FLOW ENTERS THE CULVERT). L �A IQ MA%. KEYED WNST. JOINT .o-e. e. e. o-o-o o- o- O.O ro- FSELEGT MATERML TYPEIORI DITCH SLOPE•DR SHOULDER. 4^%g..% L-VMIAAE - MA%. 20' I ee-e-e'e �e?e-e-e-e e-e a PLAN VIEW SHOWING PLACEMENT OF >. HEADWALL AT 11E OUTLET END O THE CULVERT MAY E EITHER SQUARE ""' •.• MN. STEM ALWLNJIN OR STEEL z•-ta' cu°TRiER° •••••• CD-2 UNDERDRAIN 2. THIS ITEM MAY E PRECAST OR CAST N PLACE. EDDE ON BEVEL EDGE. PLAN .00 NCH MR. RIVETS BR BOLTS 2'-0" 9' T-6" a.. 3'-0. Y' •"'• ALUNINM PLATE T COMPATIBLE WITH POST B Z� BAPS A APPROACH •• NT AGGREGATE, Eg AGGREGATE M2 CRUSHED 3. ALL CAST W PLACE CONCRETE TO Y CLASS P3. FOR PRECAST SEE 8.ON SHALLOW RLS. WEND ENTAALLS ARE 1'BR LESSRUCT BELOW LEL TOER I MATERIAL SEGUTTER GLASS MEETING {8 GRADATION REQUIREMENTS. SHEET IOI.O2. LATE TE TOP O THE ENDWALL SHALL E CONSTRUCTED PMMLEL TO THE Ad W. �°AaTENA%pE 1' NON -PERFORATED OUTLET PIPE 4. MS STANDARD TO BE USED WITH STRAIGHT CROSSINGS AND ALL °R' O TE ROM. n m^_' ` SKEWS(0-TO 45•). 9, i'i CHAMFER MAY E PRDNDED ON ALL EDGES AT MMA)FACTUREWS OPTION. U-TYPE ROLLED 1 _ _ - - - _ _ _ ^ v m r 0 M1. j•' FA9NC GR CRUSHING STRENGTH _______________ S RANL STEEL POST BARS C 1 fi - TYRE O PPE N W.T. 4" NOD). DIAMETER! MW.T. 6" NON. q}IETER 5. HEADWALL TO BE BEVELED IN ALL AREAS EXCEPT WHERE A CONFLICT n DIMETEa 1.A LBS.EFTA m - _ - -} - - WITX INVERT OR WNGWN-Lg OCCUR MWM)M ALLOY 3'-0" BAPS F BAPS E L)_Bn a -" SMOOTH WALL PVC .p] 0.163 MX MIN ORfi0fi]17fi D >B 1 W3" DIAMETER " - BAPS E PAVEMENT SURFACE L BASE SMOOTH WILL PE TO PS MMM TO P4 MMM EW-1 EW-1A r „ LBS./FT. 1 WEEP HOLE BARS B o 1 FRONT ELEVATION auis R e" r-s" a•' e e e e e e e SBBAE OR CEMENT sTMLIzeD SUBBASE 1'-0" - - - - - - (CUTTER REMOVED) p�•. 3'-D" - - """" o a o o �-SELECT MATERIAL TYPE OR SUBGRADE M WALL THICKNESS MNl -INCHES ENDWALL FOR CIRCULAR PIPE ENDWALL FOR ELLIPTICAL PIPE -m a-o= UNDERDRAIN OUTLET I STABILIZED) NORM TESTED ACCORDING TO ASTM D-2412 AT SX ERECTION. DIAMETER OF WE CULVERT SITE OF ELLIPTICAL WE CULVERT (SPAR x RISE) MARKER DETAIL g,. o.. 5%'/(' BENT PLATE SECTION B-B 057 AGW. EB (IGIREGATE OR CRUSH D EAPIAGE CLAMS MEETING WB GRADATION REQUIREMENTS. T%" 15• 18" 21' BR 2Y' T' m MI' " OR 35' 23•v%• 30"N9• 3Px22' ]B'v2P' 42'x2T' 45"x29" 4913Y' S31SL• _ '�' ORIRYGE ' SECTION A A NOTES F/BPoC GENERAL NOTES A 741, a-8. a-r a-11• 1'A' T-0• A 0'-B" O'-B• V-11P 0' W" °' tt 1'-0• 1'-0" 1'-0• 1, TYRCAL ENDWALL TO BE RA.'ED AT THE ENDS O ALL U FLORIN OUTLETS. DAMMING LOCATIONS TYPE A NOSE DETAL SHALL BE USED WITH CG-3 & CG-> STPNpMDS / R /" B 0'-n" T-r T-J' 1'-r 1'-r 2'-O- B T-Y' 1'-5- T-8" 1'-8• T-r 1'-%Y' T-1T T-1T WHERE UNOEWOftAN S TEO IMTO OTHER mN1A(E STRUCTURES. EMWKL TO Y MSTMLED TYPE B HEM DETAIL SHALL BE USED WITH CG-2 8 CG-6 5TANUARU3. Y P � GALVANZED 1. TENCH SHALL BE FILLED WITH AGGREGATE AND THROUGHLY HAW TARED TO PERPENDICULAR TO ROADWAY AND FLUSH WITH THE SORE. v TYPE A TYPE B /i' X 4" STUD SHEAR CONNECTOR WELDED INSURE COMPACTNESS. C T-P' T-r. t'A• T-2" 2'-e- 2'-9'• C T-0" T-T• r-T' 2'-4• T-5• T->• 21W 2'-9' GALVANIZED PLATE TOR TYPE A TO BE BENT ON AN ANGLE OF 68.30- TO ARGUE IRON AT 2-C-C. 2. OUTLET PPE$ $HQL E RIGID NGIASITM 2412, SLOGAN -BONE PIPE, MEETING THE REQUIREMENTS CONNECTORS AND IS TO BE ANCHORED WITH '/" X 4" STUD SHEAR APPROACH SLAMS PAVEMENT 2. OUTLET PIPE SHALL BEGIN AT THE EDGE OF THE TRAVEL LANE PAVEWNT AND D T-r 1'-]" 1'-8• 2'-0" 2'-8• ]'-0" D }-T' P-T' 1'-ta' 2'-0" 2'-3• 2'-r 2'-8• Y-f0• gMEMSIOMS CLASS .V OF >0 PSTESTED ACCON9wG TO ASTY z41z. NOSE DETAILS SWILL E PLACED ON A GRADE PMN1£L TO THE SHOULDER SLOPE 2 X MN. (SC PIPE 1.0, SLOPE CONCRETE WELDED TO ENT PLATE AT 2-C-C. 2„ DICRMLE)GRADE L X CUNC YARDS 3. EXPANDED STEEL ESN (FLATTENED) SHML HAVE OPENINGS O APRMX.'/�' % 1" M° WEIGH APPAREL WELDED F a-B" D'-B" a-r a-9" a-r Q•_9u F °,_B„ q_B• °,-W, 0•_r a-r a-W' G'-9• D'-r PR. PAVEMENT 4•' 21 Y-5 " 1'-T " 0.1> 0.02 LBS. PER W. FT, ESM SHILL E GALVANIZED N IDCORDME WITH ARTY A-123. THE MESH BMOE SUBBASE 3. ON CURB AND CUTTER SECTIONS. WHERE IT IS IMPOSSIBLE TO OTHERWISE PROVIDE $HALL EXTEND A WOMAN OF 1" ABOVE THE 0.0. O TXE RPE. AND S A BARER FOR RODENTS. ETC. DI-3A L 01-38 L DI-3C L T;. WARPED PAVEMENT -2 OUTLETS FOR UDROR INS• THEY ME TO E LOCATED W AS TO DRAWN INTO MOP X S-S' r-r 7-2• w-N' 4'-a' V-9" H 2'-IO" 317 3'-T• 3'A" 4'-0' 4--r 4'-r 4'-T' a• 1:1 1'-5" 1'-T ' 0. 5 THE SLOT FOR THE STEEL MESH IS TO BE CONSTRUCTED W THAT THE MESH CAN E REMOVE° FOR �� M-2 RE - NETS OR MANHOLES. L..... L Y-r Y-0• 8'-r B'-0" D'-0' 12'-0" L 5'-5" T-2• w-0" w-2• IO'-2" TEAR-W" tt'-T' 12"IT' s•' 2.1 2-1 .' 1'-5' '• 0.21 MAHOUT PURPOSES. _ Y-r BASE MATEPoM TYPE I 0 °'-}/1" °'-$'� a-z• a-21 0'-9 0'- 1'-] " 0.35 SIZE 42.52113 IB" MN EPTiI TO E LASER ENTIRE PAVEMENT AREA 4. ON SIPERELEVATED SECTIONS, TRENCH 5 /L• /i 3j'i' S T-R" T-6• 2'-ta' w-2• 3`11' 31 4'-l" 4'-w, 4. TINS ITEM MAY E PRECAST OR LAST N RAC` - - _ _ _ _ _ _ � _ _ � WITH OUTLET PPE ON LOW SIDE ONLY 5. STEEL POSTS AND RATES TO E PRINTED OR GALVANIZED N ADLORDAICE WITH THE WAD ANO x FLOw i "C� S. INVERT ELEVATION AT OUTLET END OF OUTLET WE TO E A MINIMUM O Y-O" (HOVE b 0'-T' 0'-}/i' D'-!/i a-2" O'-21/i 0'3" O W-21/i' °'-9/i 0'-Y/i tl-4• O'-41/I• a-4�'W' 0'-5• a-SyA" BFq)E SPECIFICATIONS. R PNNTEO THE FINAL COAT SMALL E NO.11 MLWIY PALM OR FLOW FLOW - I'-0" INVERT REVATDN O RECEIVING MANAGE DITCH OR STRUCTURE. xRIDG WASTE PANT.la MINI YARDS OF coacRETE b o•-z'• a•-2yi °'-21•: a-3- 0'-31/i a-S aI. EYE PLACEMENT OF CD-2 UNDERDRAIN AT 6. ALL CONNECTIONS (ELBOWS• WYES, ETC.) MI PAY WITS FOR OUTLET PPE ME TO e. MAKER TO BE RAGE° AT OUTLET END OF ALL UNERDRAN INSTALLATIONS BMMNG LOCATIONS 1 1 1 DETAIL WHEN USED BRIDGE APPROACH SLABS BE OF THE SAE CRUSHNC STRENGTH AS THE OUTLET PRE. MNC. PPE 0.241 0.492 0.69T 1.3N 2.NT 2.94T CUSIC YARDS OF CONCRETE WHERE UIIOERmMN S TIED INTO OTHER DRAINAGE STRUCTURES. FOR USE ON GRADES ADJACENT TO CURB T. OUTLET PPE TO E SECURELY CONNECTED TO EN'-12OR OTHER DRAINAGE C.M PPE 0.257 0.521 O.T39 1.398 2.188 J.MS COHC.PPE 0.502 0.855 1.2]8 1.300 1.811 2.IO1 2512 2W1 J. MARKER WILL E PAD FOR N ACCORDNCE WITH SECTION WT OF THE ROM AND BRIDGE FOR USE IN SAGS WITHOUT GUTTER STRUCTURE. SPECIFICATIONS. BOTH SEES TO BE SYMMETRICAL >/0J SPECIFICATION ` S cEWNTION �vDQF 9'EMMEtl NyDOT SPECIFICATION REFERENCE STANDARD COMBINATION UNDERDRAIN VOA REFERENCE STANDARD ENDWALL FOR PIPE CULVERTS STANDARD CURB DROP INLET REFERENCE READ AND BROfE STADMDS STANDARD ENDWALL FOR PIPE UNDERDRAIN -Op1E ROAD MD BRIDGE STMDMDS ROAD AND Blio(E STANDARDS 105 12" - 36" CIRCULAR AND 23" x 14" - 53" x 34" ELLIPTICAL PIPES REVISIGM °ATE SHEET 1 BE 1 i SHEET 1 OF 2 REVISION DATE 12" - 30" PIPE: MAXIMUM DEPTH (IT) - 8' z3] 501 (AT GRADE SAGS AND BRIDGE APPROACHES) REVISION DATE SHEET 1 or 1 302 VIRGINIA DEPARTMENT OF TRASPORTATDN VIRGINIA DEPARTMENT OF TRANSPORTATION 3G2 OB/10 VIRGINIA DEPARTMENT OF TRANSPORTATION J02 701 VIRGINIA DEPARTMENT OF TRANSPORTATION 1OB.05 IO1.O 17, 5r 104.09 Mn-2 - HALF PLAN VIEW 1'"- na R-VA.. Pla THE LETTERS v D O T ARE CFTIONAL 4'-H'- t2 . WML THICKAIESSI F USED THE LETTERS QAIRIRE TO DE ST IA" 1'/I" �•• 1%i y.. COVERSHOWN1" WICAST IT DE W' HIGH AOP 9 f:! SHIMP ❑ ❑ ❑ FOR Eins a APR COMPONENT HEFT AND nI'xAlenslaN� ❑ ❑ ❑ ❑ ENGINEERING ENERAL NOTES- PRECAST" SE SHEETS .I �� A A LAND PLANNING -PROJECT MANAGEMENT ❑ ❑ ❑ ❑ ❑ ❑ ❑ -EE ':TMDMAD SL-I FOR OPFLICABILITY OF SAFETY SUMS. -4-ye V• D• 0• V. B B % STANDARD MH-I NOTE = 1 --- -- - / MACHINE I'-B'/e" CIA. MAW & COVER THE TOP O MASONRY IS TO BE LEFT TL JT ❑ 912 E. HIGH ST. 434.227.5140 ADJUSTMENT LOW COVER PERMIT PROPER-_L__-__ '• OPTIMAL SPACER MINT GAMETBYNTTHErUM OF MORTAR OR TO SECTION A'A OPTIONAL BRICK AS DIRECTED BY n{ ENGINEER. ),� ❑ ❑ ❑ ❑ CHARLOTTESVLLE VA, 22902 JUSTIN@SHARP-ENGINEERNG.COM 2' 0" in FRAME AND COVER SHALL BE ❑ ❑ ❑ /., RATED FOR TRAFFIC CODITONS- _ O APPROXIMATE WEIGHT ` OR W T NWT a b � T 6•. _ OLAT SLAB LAAR0 T-YH-2 BY 4 0•• FRAME 239 ME ±012 LBS. - - I- 1 SUBSTITUTED FOR TAPERED COVER I]> : J LESS. TOP ---- :'•PUPA•• n \n • TE ENA WHEN APPROVED BY _ • -_r-- P _---- n - - BEDDING MATEMM HA A -A (SEE NOTE 11 STD-ST-, :• HALF SECTION ' ^ I .' (WITH ERNE Mp COVER REYOVEDI -,r�_r • W ---- 6- e"4�- A�i' g.. B�A BRICK CONCRETE RISEN WT RBER"UIT g SECTIONAL ELEVATION 1 D NOTES: -- -- z-BREDUCER 1Y ,A,f• gi b•. BEVEL t5' LOUANTITE5 SHOWN ARE FOR MANHOLE B / PLAN \ B O V • Stnw > PoSER'UHR r� WITHOUT PIPES. THE AMOUNT DISPLACED I t/•" I --- 9 5E--- ----- SD A - BY PIPES MST BE DEDIK EDi 0 I W D Om OBTAIN TRUE OUANTres. Y4 II SLOT LIC Nq. 5183 Mw+aITHC REDUCER WT NOTES BEDDING THICKNESS TABLE v :I' -a• ABLE QUANTITIES CONCRETE 2, AOBASE COMPETING co`�rESS OF lw.wii USED IN --S. } v--- -- -- I BEDDING MATERIAL M TO E AGGREGATE SBE 25 OR 26 F FOUNDATION HAS STANDARD FOUNDATION BEDDING THICKNESS - DEPTH T BRICK E MANHOLE MANHOLE 1� I e OR RUNNING WATER PRESENT. THEN AGGREGATE NO, 57 SHALL BE USED FOR THE DEPTH TYPE ' P 1'-D" OIA 1" BASE -UNIT �I MAT SRECFIED ON THE MANS OR AS DIRECTED BY THE ENGINEER, GIPPED WITH 4 NGES lb) n III CONCRETE CONCRETE S. ADDTNO NTS TO BE ADORED . EACH �O OF AGGREGATE W.25 OR 26. ADDITIONAL FOOT O DEPTH. �• /A f.� I ♦" FOR N I D' c / -A' CONCRETE FRET THOUSANDS CUO ig5 S CO S 4. MATERIALS MAY E BRICK. CONCRETE OR �•" I'-BYn" OIA I� y I r' _ _L _'T- 2. WIOTH O BEDDING WTERUL SHNAL EXTEND A MINIMUM O 6" BEYOND THE BAY O NOPMK CM' 8^ FOR H I XT '" 1° FOOTING APPNOVD CONCRETE MANHOLE BLOCK ye' • 4/i SLOT ysI G I T _ 5 0.> 0.>g5 1.899 MACHINE MICMNE O A� THE STRUCTURE ON ALL SIDES. 9 _ 1 ' I ROCK R' RR FOOT O H. MAX. B" 6 0.9 0.T85 1.96, 5.IF BLOCKS ME USED THE MINIMUM tl/t• R '+ 3 T1EETTOP OF TBOE FRAME AME ND CCE'O�ODFROM R CONCREETE Ex�BPENDN ONN THE STRUCTURE TO Pj - . - - ' - T LO 0.785 2.223 THICKNESS OF FESAME IISREO CONFORM TYPE. SEE APPLICABLE BRANAE STRUCTURE STADMD FOR DETAIL. AS SPECFEO ON THE FILMS - 5 U 0.785 2.4a5 TO WALL THICKNESS SHOWN FOR FOOTING FOOTING SOT 4 YIELJv OR AS DIRECTED BY THE ENOEER 9 1.4 OJgS 2.A> CONCRETE. I'/�' R �• A DAETER=V-8".(2 . WAIL THICKNESS) m IO UJ85 3009 IF ALL CONCRETE TO BE CLASS q. R 0 1.9 0.970 3,455 SECTION B-B 12 2.2 0970 3.311 >. WHEN SRECIFEDONPLANS THE ------ VSMP PLAN AMENDMENT IS 2.5 09FG. 4.179 INVERT IS TO BE SHAPED IN 1'->S/4' OIA BRICK ACW CONCRETE OR I4 2 e O.9>o •sal AOcoROANCE WITH STANDARD Is-1. X; CONCRETE BLOCK rE MATECOST of fURNISNT AND THE 15 3 t > 4 ALL MATERIALS NCDENTM TO THE 1 5'• T-0" OIA. 5' 1 T-9 " 0A S 3.13 0.970 1,83, SHAPINGR H STBE NCLUK.DES INTEBIO SECTION B-B ABC BLOCK 1 MASS 17 3.4 I.D3 6.032 SRICE FOR TO STRUCTURE. BOTTOM INCREMENT 0.45 0.582 SPECIFICATION `VAST SREFEREATIONNCE �VDOT $REMFICNCE `N/p[]'(' xV_= A COPY O THE OPoGINAL SEALED AND sSEO MAKING IS ON FILE M THE CENTRAL OFfiCE. SPECIFICATION REFERENCE PRECAST MANHOLE DRAINAGE STRUCTURE BEDDING FOR DROP INLET, ROAD AND BRIDGE STANDARDS REFERENCE MANHOLE FOR 12" - 48" PIPE CULVERTS ROAD AND BRIDGE STANDARDS ROAD AND BRIDGE STANDARDS REFERENCE GRADING - MAJOR ROAD AND BRIDGE STANDARDS N STANDARD MANHOLE FRAME AND COVER MIS REVISION GATE SHEET t O 1 MANHOLE, AND JUNCTION BOX REASON GATE SHEET 1 OF 1 REVISION OeTE SHEET 1 OF ! SHEET 2 OF 3 REVISION DATE 224 Jg2 VIRGINIA DEPARTMENT OF TRMSPORTATKYI JO2 302 VIRGINIA OEPMTMENT OF TRANSPORTATION VIRGINIA CIPMTLENT OF TRANSGORTATXM .2 108.0> VIRGINIA pEPMTENt O iRNSPMtIATKN ,p6.15 Ca/.P 1m.01 IO602 04/20 AMENDMENT FOR q-T,TAM DETAILS OF CONCRETE COVER AND GRATE EGI I DETAILS OF GUTTER AND DETAIL 1 DETAIL 2 MULTIFAMILY 2" DIAMETER BMA EEL LBS-/Fi. B LB NO.M TM STEEL DE R >.es � METHOD OF PLACEMENT �•-B DETAIL 3 B lBb./FT (ASW AS15, GRADE 60. I GRATE A b T) W UTLIZED N TEA LOCATIONS HOT NODALLY NOTES SUBJECT 13 TRAFFIO. A ALBEMARLE COUNTY VIRGINIA L DI-> NO GUTTERS, A A 2. °RATE B Is TO BE UTLLIZD W DIODE NO GUTTER N DIE DIRECTION. (1I� P I LOCATONS NOMAALLY DI -TB GUTTER IN BOTH DRECTIONS. 4L I N I n I I z A YH ��NN�I��1 SUBJELT TO TRAT'IO. m I m SUBMISSION: Al ' 2. JOINTS BETWEEN GUTTERS AND CONCRETE COVER \ DE 3 I'L JJJ"'■"' 1\ 3. FORMA DETAILS; OF LEAD CARRYING-01-7.ARE TO BE DOWELED WITH M % 8" T SE TM LS'%2"X7(1 GRATE (CRATE BI, SE T-M-T, RODS W APPROX. O V" DOWELS TO PREVENT SETTLE- i x y5T1p 4• LMIi %21 SHEET 1D3.08. MEAL. IN LIEU OF DOWELS A 2" % L' MOTOR MAY COBf 4. CONLETE LOVER AND GRATE SE PROW°D. 2021.12.07 DETAIL A BEE STANDARD T-DI-].4 ALTERNATE ESMN. m '^ ' ME E NI FUMSEO AS A CRATE TYPE SINGLE UNIT. OUTSIDE 3. VARIABLE 2H BR MATTER. B S �B I OR ■ OX5'-0" BAPS DIANKSONS °F CURATE TO PLAN VIEW (FROM BANS) Ott REO'D.) OR 3', �„ K 2', r7�.. (GRATE Al 4. DITCH GRADE MAT BE ADJUSTED TO MET L m SEE DETAIL DIFFERENCE N ELEVATION. SEE LOWTUONAL L REVISION: A-7 n S. ALTERNATE ETHWS OF MOTION. B miry Fl i MCXOWD ANGLE TRW WILL E 5. F DEPTH (M ECOIBE XTE THEN 4" LENGTH 1_�LSY 1 ANCHORING IF /PROVED 1. THE IF WINGS ME TO BE EXTENDED, AS d MICTED LOWTH ;�.. ENGINEER. SECTION A -A BY THE WALLENGINTR. SECTION B: 8. GRATE ND COLLAR ARE TO g, THE PA WALL TO SE LOCATED T 01 END OF GALVANIZED. GRATE A THE PAVED DITCH SECTIONS D, iE MODE BM SPACING CHART T. CONCRETE COVER NAY BE MANAGE. ARE NOi (HUTTED BY OTTER GEOTEr APPRORMATE QUMTITID PRECAST m CAST IN PLACE. M GRATE MINIMUM GAEHSION FABRIC CONCRETE REINFORCING TYPE A B S. CONCRETE TO E CLASS AS F CAST > F NORMAL DITCH MADE IS T00 FLAT TO ALLOW EOTE%TILE CLAPS A] STEEL N PLANE. ROOD P91F PRECAST. FOR ADJUSTED BRIDE TO INLET A SPECIAL FIBPoC (¢O C%T •• 0.423 C. Y. 83 LBS. L }/• ]• GUTTER DETAIL WILL BE REgBib ON RMS. I r I" 9. GRATE BANS TO E PARALLEL TO SECTION A -A SECTION A -A DITCH FLOW, SECTION A -A Z'-0.1'^^I1-p" B1ET T / MIN. XB q RAN Z_ro• �°�L" _ ^qra' NIETL�'- i As b NOTES: D� N 1. FOR MULTIPLE LINE INSTALLATIONS, DIMENSION 5 S TO GOVERN THE PROTECTION FILE NO. Y OUTSIDE THE CHANNEL WIDTH M. SECTION A -A ME NOTE ,� YE NOTE SE NOTE 3 2. ON MY INSTALLATION REWIRING CULVERT OUTLET PROTECTION WHERE NO ENDWALL 18.004 SEE NOTE ''4•• OR ENDSECTION IS SPECIFIED ON THE RMS. CONSTRUCTION S TO BE N ACCORDANCE BOTH SLOPES FLAT pE STEER SLOPE g WITH DETAIL 2 SIIOWN ABOVE. ""A ONE INTERMEGATE SLOE 3. EOTEXTLE FABRIC TO BE INSTALLED UNDER CLASS A .1I AND I MATEPoMS N ACCORDANCE WITH THE SPECIFICATIONS. l _ 21NET MOTU LE �IXTGH 'I. NIET -D" �'- CRTiCH " WTTER BRIDE BACKEPRO LxEO FASRHC 4 R DIAMETER OR CIRCULAR CULVERT OR R�AERINTT FIN BOX, ELUPTICAML CDR CULVERT. !�' D = ADJUSTED TO MEET AS OECTED BY THE CULVERT' DRAINAGE DETAILS a a, - T INLET ELEVATION ENGINEER (DI -TA ABLY). SECTION B-B X UE TYPICAL SECTION SHOWN ON PLANS FOR SIDE SLOPE BOTTOM WIDTH AK) DEPTH Lam' aEE NOTE 3 EE NOTE NORMAL MAXIMUM OUTLET W CHANNEL OR MATCH EXISTING DITCH qi NATURAL M TYPICN_ ELEVATION f TW MADE TYPE OF OUTLET PROTECTION "TERM VELOCITY IWWAN "r, SEE TE 4 YE NOTE 3 .1 m FATTER arm DESIGN STORM) BACKED,ONE STEEP SLOPE -ONE FLAT SLOPE BDM SLOPES STEEP OUTLET PROTECTION AM MAN LENGTH 0.1 NRN%NATE WMRITES CLASS Al CLASS Al DRY PoPRAP a M. 18 LONGITUDINAL SECTION TYPE A INSTALLATION JH APPROXIMATE QUANTITY' i0ft ONE GA2TAN WM1. TYPE B INSTALLATON SH MEASURED, FROM BOTTOM O CUTTER CONCRETE q-J O-TA q-TB WHEN INLET 5 LOCATED CLASS I 0.AS32 q(Y RPRM % TPK 24 CLASS AS MOVE NORMAL DITW GRAPE) CONCRETE CLASS AS O.24MA YIDS. (W. YD5.1 NOW 1.2N 2H8 SEE WTE 6. WASS I aAssI BRr RPRAP ro YPI 3e `VpQT SPECIFICATION Rf]ERCAETIDM `VDQF STANDARD MEDIAN DROP INLET REFERENCE CULVERT OUTLET PROTECTION ROAD AND BRIDGE sTADMDs 101 ROM AND EMERGE STANDARDS SHEET 2 of 3 REVISION GRATE 12" TO 42" PIPE 241 245 REVISION DATE SET 1 CF 1 30J VIRGINIA OF OEPTMENT TRASPORTATION 104.23 MINI DEPARTENT OF TRANSPORTATION 503 414 113.01 PROJECT INFORMATION ENGINEERED JIM LURK PRODUCT 2bdE9-01N MANAGER: JAMESGURK AOS-PIPELOM MIKEGREEN AD88ALE8 REP: 904-24ELAR M213MG GREEN®AOB-PIPE.LOM PROJECT NO : 8319558 mwzm LLLLLilr ADVANCED DRAINAGE SYSTEMS, INC. SMASSIST' ❑ ❑ • xSll FOR STORMTECH RUCTIONS, OMMILLCTDTH DOWHLOADTHE • ❑ IHSTALUTX)H APP ALBERMARLE COUNTY BUSINESS CENTER CHARLOTTESVILLE, VA MC-4500 STORMTECH CHAMBER SPECIFICATIONS IMPORTANT - NOTES FOR THE BIDDING AND INSTALLATION OF MC-4500 CHAMBER SYSTEM 1. CHAMBERS SMALL BE STORMTECH MC4000. 1, STORMTECH MCLINO CHAMBERBSMALL NOT BE INSTALLED UNTIL THE MANUFACTURER'S REPRESENTATIVE HAS COMPLETED PRE -CONSTRUCTION MEETING WITH THE INSTALLERS. 2. CHAMBERS SHALL SEARCH-SHAPED AND SMALL BE MANUFACTURED FROM VIRGIN, IMPACT -MODIFIED POLYPROPYLENE 2, STORMTECH MC4500 CHAMBERS SHALL BE INSTALLED IN ACCORDANCE WITH THE -STORMTECH MCd600IXCd00 CONSTRUCTION GU m E' COPOLYMERS. ]. CHAMBERS ME NOT TO BE BALKFILLED WITH A DOZER OR EXCAVATOR SITUATED OVER THE CHAMBERS. 9. CHAMBERS SHALL MEET THE REQUIREMENTS OF ARTS FNIB-IN'STANDARD SPECIFICATION FOR POLYPROPYLENEMHO STORMTECH RECOMMENDS 9 BACKFILL METHODS: CORRUGATED WALL STORMWATER COLLECTION CHAMBERS- CHAMBER CLASSIFICATION BUT 01. STONESHOOTER LOCATED OFF THE CHAMBER BED, BACKFILL AS ROWS ARE BUILT USING AN EXCAVATOR ON THE FOUNDATION STONE OR SUBGRADE. 4. CHAMBER ROWS SHALL PROVIDE CONTINUOUS. UNOBSTRUCTED INTERNAL SPACE WITH NO INTERNAL SUPPORTS THAT WOULD • BACKFILL FROM OUTSIDE THE EXCAVATION USING A LONG BOOM HOE OR EXCAVATOR. IMPEDE FLOW OR LIMIT ACCESS FOR INSPECTION. 4. THE FOUNDATION STONE SHALL BE LEVELED AND COMPACTED PRIOR TO PLACINGCHAMBERS. S THE STRUCTURAL DESIGN OF THE CHAMBERS, THE STRUCTURAL BACKFILL, AND THE INSTALLATION REQUIREMENTS SMALL ENSURE THAT THE LOAD FACTORS SPECIFIED IN THE AMXTO LRFO BRIDGE DESIGN SPECIFICATIONS, SECTION 12.12, ARE MET FOR: 1) S. JOINTS BETWEEN CHAMBERS SHALL BE PROPERLY SEATED PRIOR TO PLACING STONE. LONG -DURATION DEAD LOADS AND R SHORT -DURATION LIVE LOADS BASED ON THE AASHTO DESIGN TRUCK WITH CONSIDERATION FOR IMPACT AND MULTIPLE VEHICLE PRESENCES. 0. MAINTAINMINIMUM-W (230 mm) SPACING BETWEEN THE CHAMBER ROWS. S. CHAMBERS SHALL BE DESIGNED, TESTED AND ALLOWABLE LOAD CONFIGURATIONS DETERMINED IN ACCORDANCE WITH ARMARMFRI T. NLET AND OUTLET MANIFOLDS MUST BE INSERTED A MINIMUM OF 12- mm OINTO CHAMBER END CB. ) RA 'STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CXMBERS'. S. EMBEDMENT STONE SURROUNDING CHAMBERS MUST BE A CLEAN, CRUSHED. ANGULAR STONE MEETING THE MBXTO M43 DESIGNATION OF AS LOAD CANFIGURATIONS SHALL INCLUDE: 1)INSTANTANEOUS (•1 MINI AASHTO DESIGN TRUCK LIVE LOAD ON MINIMUM COVER 2) OR N. MAXIMUM PERMANENT IMYR) COVER LOAD AND 8) ALLOWABLE COVER WITH PARKED (1-WEED M8HTO DESIGN TRUCK. P. STONE SHALL BE BROUGHT UP EVENLY AROUND CHAMBERS SO M NOT TO DISTORT THE CHAMBER SHAPE. STONE DEPTHS SHOULD NEVER Z. REQU IREMENTB FOR HANDLING AND INSTALLATION: DIFFER BY MORE THAN I2-(300 mm) BETWEEN ADJACENT CHAMBER ROWS, • TO MAINTAINTXE WIDTH OF CHAMBERS DURING SHIPPING AND HANDLING, CHAMBERS SHALL HAVE INTEGRAL. INTERLOCKING BTAEKING LUGS. 10. STONE MUST BE PLACED ON THE TOP CENTER 0F THE CHAMBER TO ANCHOR THE CHAMBERS IN PLACE AND PRESERVE ROW SPACING. • TO ENSURE ASECURE JOINT DURING INSTALLATION MOBACKFILL. THE HEIGHT OF THE CHAMBER JOINT SHALL HOT BE lE88 THAN 3'. il. THE CONTRACTOR MUST REPORT ANY DISCREPANCIES WITH CHAMBER FOUNDATION MATERIAL BEARING CAPACITIES TO THE SITE DESIGN • TO GRITY THE GREATEDURING DEFINEDINENGINEER. ARCXBTIIS)TOR CONSTANTCHAMBER SECTION SHALL BE R EQUALINSTALLATION, OLBWTHE 6..8 OFA AWN BE GREATER THAN EQUAL TO SECTION BR.B OF ABTM N TO RESIST CHAMBER DEFORMATION - C , CHAMBERS T ELEVATED TERATUREB(ABOVE39'F/3]'C), LXAMBERSBXALL BE PRODUCED FROM (ABOVE 12, ADSRECOMMENDSTHE USE OYSTEXSTOM FOR ALL INLETS TOPROTECT THE SUBSURFACE RDURING EFLECIVEGLDO RYLLOWCOLORS. REFLECTIVE GOLD OR YELLOW COLORS. CONSTRUCTION SITE RUIXGCONSTRUCTION STORMWATER MANAGEMENT SYSTEM FROM COXBTRUCTIOX SITE RUNOFF. E ONLY CHAMBERS THAT ARE APPROVED BY THE SITE DESIGN ENGINEER WILL BE ALLOWED. UPON REQUEST BY THE SITE DESIGN NOTES FOR CONSTRUCTION EQUIPMENT ENGINEER OR OWNER. THE CHAMBER MANUFACTURER SHALL SUBMIT A STRUCTURAL EVALUATION FOR APPROVAL BEFORE DELIVERING CHAMBERS TO THE PROJECT SITE M FOLLOWS: 1. STORYTECX ML4500 CHAMBERS SHALL BE INSTALLED IN ACCORDANCE WITH THE 'STORMTECH MC-350ONCLIS00 CONSTRUCTION GUIDE'. THE STRUCTURAL EVALUATION SHALL BE SEALED BY A REGISTERED PROFESSIONAL ENGINEER. • TXE 8TRUCTU RALEMLUATIOX$HALL OFTHAT THE SAFETY FACTORS ARE GREATER THAN OR EQUAL TO 1.0 FOR 2. THE USE OF EQUIPMENT OVER MCd500 CHAMBERS IS LIMITED: DEAD LOAN AND 1.35 FOR LIVE LOAD THE MINIMUM BY ABTM F3TBZ AND BY SECTIONS ]AND 13.130E THE MBXTO • NO EQUIPMENT IS ALLOWED ON BARE CHAMBERS, LBRIDGE DESIGN SPECIFICATIONS FOR THERMOPLASTIC PIPE. NDRUGD O RUBBER TIRED LOADER, DUMP TRUCK, OREXCAVATORS ARE ALLOWED UNTIL PROPER FILL DEPTHS ARE REACHED IN ACCORDANCE • THE TEST DERIVED CREEP MODULUS AS SPECIFIED IN ABTM F24158NALL BE USED FOR PERMANENT DEAD LOAD DESIGN WITH THE 'STORMTECH MC-3500/MCd50D CONSTRUCTION GUIDE'. EXCEPT THAT IT SHALL BE THE Z5-YEAR MODULUS USED FOR DESIGN. • WEIGHT LIMITS FOR CONSTRUCTION EQUIPMENT LAX BE FOUND IN THE'STEXMTECX MCS5OMMCdMD CONSTRUCTION GUIDE'. B. CHAMBERS AND END CAPS SHALL BE PRODUCED AT AN 1809001 CERTIFIED MANUFACTURING FACILITY. S. FULL 35'(900 mm) OF STABILIZED COVER MATERIALS OVER THE CHAMBERS IS REQUIRED FOR DUMP TRUCK TRAVEL OR DUMPING. USE OF A DOZER TO PUSH EMBEDMENT STONE BETWEEN THE ROWS OF CHAMBERS MAY CAUSE DAMAGE TO CHAMBERS AND 0 NOT AN ACCEPTABLE IMPORTANT - THIS PROJECT REQUIRES COMPACTION OF EMBEDMENT aRCIQ1u METHOD. ANY CHAMBERS DAMAGED BY USING THE 'DUMP AND PUBH-METHOD ARE NOT COVERED UNDER THE WOBMTECX STANDARD wMXANn. STONE AND REQUIREMENTS FOR STONE HARDNESS AND SHAPE WHICH ARE NOT SPECIFIED MOTHER STORMTECH DOCUMENTS. CONTRACTORS MUST CONTACT STORMTECH AT1;Sea82-RSw WITH ANY QUESTIONS ON INSTALUTION REQUIREMENTS OR WEIGHT LIMITS FOR CONSTRUCTION EQUIPMENT. FOLLOW THE SPECIAL PROVISIONS IN THIS PLAN SET. PROPOSED LAYOUT BMP-7 NOTES - 40 STORMTECH MC4500 CHAMBERS MANIFOLD BEE TO BE DETERMINED BY SITE DESIGN ENGINEER. BEE TECHNICAL NOTE 6.32 FOR MANIFOLD SIZING GUIDANCE. 4 STORMTECH MC4600 END CAPS . DUE TO THE ADAPTATION OF THIS CHAMBER SYSTEM TO SPECIFIC SITE AND DESIGN CONSTRAINTS, IT MAY BE NECESSARY TO CUT AND COUPLE ADDITIONAL PIPE TO STANDARD MANIFOLD COMPONENTS IN THE FIELD. . TX IS CHAMBER SYSTEM WAS DESIGNED WITHOUT SIM-SPECIFIC INFORMATION ONSOR CONDITIONS OR BEARING CAPACITY. THE SITE DESIGN ENGINEER IS RESPONSIBLE FOR DETERMINING LU N X W M p e 12 STONE ABOVE On 98 STONE BELOW (FI 40 IS STONE VOID TXE SUITABILITY OF THE SOIL AND PROVIDING TXE BEARING CAPACITY OF THE INSITU SOES. TXE BABE STONE DEPTH MAY BE INCREASED OR DECREASED ONCE TXIB INFORMATION IS PROVIDED. Us _- J a; w B W E IN WET IN VOW ME ICF)ABOVE ELEVATION 488.00 B.ON (PERMETER BTOX E INCLUDED TIER I DEEP COVER SPECIAL PROVISIONS 1. INSTALLATION REDD REMENTS SHALL BE AB SPEOITEO IN TH E STORMTECH DESIGN MANUALS AND CONSTRUCTION GUIDES EXCEPT M MODIFIEDIN THESE SPECIAL PROVISIONS. 2. ATTENTION IS CALLED TO 'TABLE I- ACCEPTABLE FILL MATERIALS- IN THE STORMTECH CONSTRUCTION GUIDE AND ALL OTHER APPEARANCES OF THE'ACCEPTABLE FILL MATERIALS TABLE. FOR AREAS OF THE SYSTEM WITH COVER ABOVE I FEET E1m) FOR THE MC4500 AND ABOVE 8 FEET 04m)FOR THE MC-8500, EMBEDMENT STONE SHALL BE COMPACTED WITH I-3 PASSES OF A WALK BEHIND VIBRATORY PLATE COMPACTOR OR JUMPING JACK IN 12d8'(800400111 LIFTS. 9. STONE BXALL BE CLEAN. CRUSXED,ANO ANGULAR AND SMALL CONFORM TO THE SPECIFICATIONS DESIGNATED IN THE ACCEPTABLE FILL MATERIALS TABLE. 4, STONE SHALL BE XMD AND DURABLE. RIB TXE ENCOMIUM OR CONTRACTORS RESPONSIBILITY TO SELECT HARD AND DURABLE STONE. STORMTECH CONSIDERS AN UABRASION VALUE OF LESS THAN OR EQUAL T030TO BE HARD STONE. S. FOUNDATION STONE SHALL BE MECHANICALLY COMPACTED WITH A VIBRATORY ROLLER OR VIBRATORY PLATE IN..(152 mm) LIFTS. R SO MBEOMENT STONE MUST BE DUMPED IN PLACE BY A STONE SHOOTER OR CONVEYOR OR EXCAVATOR. T. INSPECTION DURING THE INSTALLATION BY THE ENGINEER, OWNER OR OTHER REPRESENTATIVE IB RECOMMENDED. THE INSPECTION SMALL INCLUDE OBSERVATIONS OF THE CHAMBER SYMMETRY DURING SAC KFILLING TO ENSURE ME CONTRACTORS METHODS ME NOT CAUSING UNACCEPTABLE DISTORTION OF THE CHAMBERS. 0, AN AIDS FIELD TECHNICIAN WILL CONDUCT A PRE -CONSTRUCTION MEETNO TO TRAIN REPRESENTATIVES INSTALLING THE CHAMBERS AND THOSE WHO MAY BE PERFORMING INSTALLATION INSPECTIONS, m >y p O U p W a 6 U C RBE C Q M' E w G e X W € C N j S R. I$ s! 4.414 ISOLATOR ROW TREATMENT VOLUME IN) mi iF R000 SYSTEM AREA (� 310 SYSTEM PERIMETER OB PROPOSED ELEVATIONS BMP-1 474.b1 MMIMUMGRADE PER ENGINEER'S PUN 488.60 91NIMUMALLOWA.!N GRADE NNAAVED WITH TRAFFIC) 488.00 MINIMUM ALLOWABLE ORAOE (UNPAVED HO TRAFFIC) OBB.00 ' MIXIMUMALLOWABLE OflAOE (BABE OF FLEXIBLE PAVEMENn 468.00 MINIMUM ALLOWABLE GRACE POP OF RIGID PAVEMENT) 487.00 TOP OFSTONE 408.00 TOP OF MCI CHAMBER 4.1.1. N' ISOLATOR ROW CONNECTION INVERT STRUCTURED-1 PER PLAN (DESIGN BY ENGINEER I PROVIDED BY OTHERS) II•ADS N-12 DUAL WALL PERFORATED HOPE UNDERORAIN 24•ADS N-12 BOTTOM CONNECTION i d5 (SIZE TBD BY' I SOLID OUTSIDE PERIMETER &TONE) INVERT 218'MOVE CHAMBER BASE J� C i 3g ISOLATCH NOW (BEE NOTES) V GI (SEE DETAIL/ TY P 2 PLACES) {e p!� ®a INSPECTION PORT PVP 2 PLACES) r B' FLAP DATE ON UNDERDMIN AT STRUCTURE • L Z I bj (DE810N BY ENGINEER/PROVIDED BY OTHERS) rl ii J OUTLET STRUCTURE Ld PE0. PLAN ] e (DESIGN BY ENGINEER/PROVIDED BY OTHERS) qq ,C3 E B 3 gv 0 V N• PARTIAL CUT END CAP, PA0.TR MC46001EPPR40 OR MG6001EPP24BW TYP OF ALL MCd500 24- BOTTOM CONNECTIONS AND MOUTON ROWS STRUCTURE PER PLAN 2g i3 (DESIGN BY ENGINEER/ PROVIDED BY OTHERS) w0 a5 Be N$$X 8 I� 9XEET 2 9 OF z u ¢ G rc i tX H > DC _ A ° w E > • F w m u a k e O o D V_ n 1 w E a m F 6 O M . K w { 6 a � �a 05.50' SR iO' B. •4 I I! I 46T2• � 0 j g S� ------- s9E 11' ------J �i51 0 i1 pp3 I• I 5 �, a5 ffiR E. TN' 5. S a mo ee •° = Ba 6 MS e� �a 9XEET 3 of 9 PROPOSED LAYOUT BMP-2 NOTES 1+8 STORMTECH MC4500 CHAMBERS • MANIFOLD S G. T..... ERMN.G W SOE DESIGN ENGINEER. SEE TECHNICAL NOTE... FOR Y ANIFOLO SIZING GUIDANCE. BSTORMTECHM d END • DUE TD THE ADAPTATION OF THIS CHAMBER SYSTEM TO SPECIFIC SITE AND DESIGN CONSTRAINTS IT MAY BE NECESSARY TO CUT AND COUPLE ADDITIONAL PIPE TO STANDARD MANIFOLD C 600 CAPS ABOVEOn)COMPONENT9IN THE FIELD. 12 STONE O 40 %STONBELOW DID F STONE • THIS LXAMB ER SYSTEM WAS DEBgXING TH BEARING -SPECIFIC INFORMATIONOF THE ON SOIL CONDITIONS ASESONE BEARINGCAPACITY.BE INCREASED OR ONCE THIS EFON DETERMINING THE (1 THE 8VITABILIn OF THE SOIL AND PROVIDING THE BE,LRIXG CAPACITY OF TXE IXSRU BOILS. THE BABE STONE DEPTH MAY BE INCREASED OR DECREASED ONCE TXIB INFORMATION IS PROVIDED. 4D xsroxE vole L OIR INSTALLED SYSTEM VOLUME (DIF ERIMETER STORE INCLUDED) 1 12,670 ISOLATOR ROW TREATMENT VOLUME ICI E. SYSTEM AREA(ftl STRUCTURE C-1 PER PLAN DESIGN BY ENGINEER/PROVIDED BY OTHERS) ) ADS N-121135- SEND STRUCTURE PER PLAN (DESIGN BY ENGINEER/PROVIDED BY OTHERS) WILD TUREPERPLAN (DESIGN BY ENGINEER /PROVIDED BY OTHERS) V ISOLATOR ROW (SEE DETAIL /TYP 4 PLACES) INSPECTION PORT (TYP 4 PLACES) W ADS N-12 BOTTOM CONNECTION INVERT 230'ABOVE CHAMBER BABE (SEE NOTES) STRUCTURE 8-+ PER PLAN ME81GX BY ENGINEER / PROVIDED BY OTHERS) 34'ADS N-12 BOTTOM CONNECTION INVERT 238' ABOVE CHAMBER BASE (SEE NOTES) N' PARTIAL OUT END CAP, PARTS MC43001EPPUS OR MC45001EPPNBW TYP OF ALL MC4500 24-BOTTOMCONNECTIONS AND 18OUTOR ROWS STRUCTURE PER PLAN (DESIGN BY ENGINEER / PROVIDED BY OTHERS) 24-ADS HAS BOTTOM CONNECTION INVERT 226-ABOVE CHAMBER ME (BEE NOTES) S' ADS NA DUAL WALL PERFORATED HOPE UNDERDMIN MIZE TOO BY ENGINEER /SOLID OUTSIDE PERIMETER STONE) 42' PREFABRICATED END CAP, PRATE MC45001EPP42BW TYP OF ALL MCASOO 43' BOTTOM CONNECTIONS 42-ADS N-1R BOTTOM CONNECTION INVERT 9.55-ABOVE CHAMBER BASE (SEE NOTES) OUTLET STRUCTURE M PER PLAN MESION BY ENGINEER / PROVIDED BY OTHERS) ADS N-121125'BEND ^0 SC 0&UX e a i' w U a I. I. K B O > ST Al Is wI 90i E > . a a 9 k Q e °yv 2 IO G x 1TOSW DIE F E 6 a M ! 01' tOB.BB' 6 81� 5 SET 1102,071 i5 a • Eg ! a� S ffi J IBSa- a : RS SI51 156A2' 0 1GB�� FE ' Ie e 5 i i g Ip i� ®2 Re fE BOAT' Pm R 1'� Z0 E� Q F e os �8 IS IS € I€ I9 SHEET 5 of 9 ACCEPTABLE FILL MATERIALS: STORMTECH MC-4500 CHAMBER SYSTEMS AASHTO MATERIAL MATERIAL LOCATION DESCRIPTION COMPACTION /DENSITY REQUIREMENT CLASSIFICATIONS FINAL FILL: FILL MATERIAL FOR LATER -W STARM FROM THE TOP OF THE G'UYER TO THE BOTTOM OF FLEXIBLE MY SOEMOLK MATERIALS. NATIVE SOILS. OR PER ENGINEER'S PLANS. PREPARE PERSRE DESK N ENGINEER'S PUNS. PAVED O PAVEMENT OR UNPAVED FINISHED GRACE ABOVE. ROTE THAT CHECK PLANE FOR PAVEMENT BUBORADE REQUIREMENTS. N. INSTAWTgNSMRATIONAY MATERIAL AND PAVEMENT SUPREME MAY BE PART DIME 9'UYER PREPARATION REQUIREMENTS. EQUIREMNTS. AM ITO M145 INITIAL FILL: FILL MATERIAL FOR LAYER S'BTMTB FROM THE GRANULAR WELL -GRADED 601VADGREOATE MIXTURES, 95%FINES 0R p-1, M2d, M] BEGIN COMPACTIONS AFTER 24'(B00 N Of MATERIAL OVER TOP OF THE EMBEDMENT STONE IB'UYERITO N'(BN mm) PROCESSED AGGREGATE. THE CHAMBERS IS REACHED. COMPACT ADDITIONAL LAYERS IN C MOVE THE TOP OF THE CHAMBER. NOTE THAT PAVEMENT O0. 1Y (900 mm) MAX LIFTS TO A MIN. 95% PROCTOR DENSITY FOR SUBBASE MAY BEAPMTOF THE C'UYER. MOST PAVEMENT SUBBASE MATERNLB CMBEUSEDINLIEUOFTXIS WELL GRADED MATERIAL AND 95% RELATIVE DENSITYFOR DYER. MSNTO M4]' p0.0CE98E0 A0pREpATE MATERNLB. 3, 35T, 4, 40T, 5, 50, 5q 8, BIG BB q M. 8, 8B, B,1B EMBEDMENT STONE: FILL SURROUNDING THE CHAMBERS MBXTO M. COYPACTgN REQUIRED. BEE SPECIAL REQUIREMENTS ON B FROM THE FOUNDATION STORE (W LAYER) TO ME C' LAYER CLEAN. CRUSHED, ANGUU0.8TONE 8, 4 LAYOUT PAGE. MOVE. A FOUSMITI G STONE: FILL BELOW CHAMBERS FROM ME CLEAN CRUSHED ANGULAR M8HT0 M48' PLA ECO M-ORROLLTOMXIEVEAFUTBURFACE2X SUBORADE UP TO THE FOOT MOTTOM)OF THE CHAMBER. 1,04 PLEASE NOTE: 1. TXELISTED AMXTO DESIGNATIONS ME FOR GRADATIONS OPIUM. THE WOKE MUST ALSO BE CLEAN CRUSHED, ANGULAR. FOR EXAMPLE. A SPECIFICATION FOR NSTONE WOULD STATE: CLEAN CRUSHED, ANGULAR NO.4 UJUNTOW9 STONE'. R. WHERE NFILIOMPA SURFACESMREQUIREMENTSCOMP OMISED BY LOCATION FOR STANDARD NDARD DESIGN LOAD DCONDITIONS A A SURFACE MM MAYBEUSINOACC TWO FULL CKINGOR BWITH A WITHOUT COMPACTION MET Q 11 )LIFTS 3. WXEREITIONREQUIREMENTS. MAY BE COMPROMISED BY COMPACTION. FOR BTAXOA0.D DESIGN LOAD CONDITION6.AFLAT SURFACE MAYBE ACHIEVED BY RAKING O0. DRAGGIXO WITHOUT GONPACTION EQUIPMENT. FOR SPECIAL LOAD DESIGNS, CONTACT STO0.MTECX FOR COMPACTION REQUIREMENTS. 0. ONCE UYER'C' 18 PLACED, ANY 801LIMATE0.IAL CAN BE PLACED IN DYER Tl' UP TO THE FINISHED pMpE. MOST PAVEMENT SUBBASE BOILS CAN BE USED TO REPLACE THE MATERIAL REQUIREMENTS OF LAYER 'C' OR 9-AT THE SITE DESIGN ENGINEERS 018C0.ETION. ADS OEOSYNTNETKS 001T NON -WOVEN GEOTEXTILE ALL AROUND CLEAN, CRUSHED, ANGULAR STONE IN A 8 B DYERS PAVEMENT LAYER (DESIGNED BY SITE OEBION ENGINEER) PERIMETER STONE ( L. is.� .caau M• MM ELEVATION (BEE NOTE 4) 1-/ - (BOO mm)MIN' TXI5 PROJECT +r p0D mm) M1x O EXCAVATION WALL -TINS CROSS SECTION DETAIL REPRESENTS (CAN BE SLOPED OR VERTICAL) 1 II (1524 mm) MINNUM REQUIREMENTS FOR INSTALLATION. �111 (III II PLEASE SEE THE LAYOUT BXEETUD FOR 1 III I� PROJECT SPECIFIC REOLUR NENTB. A IW / LpEPTXOFBTONETO BE DETERMINED l 13' (30p mm) MINI, 'TiGY SITE DESIGN ENGINEER 9' (230 mm) MINI U 1.W12E4J m.I--12'(300m )MIN AR"m SURGRADE SOBS (230 mmI MIN ENO CAP (SEE NOTE 3) ALBEMARLE COUNTY BUSINESS CENTER BMP-1 SPECIFIC CROSS SECTION NOTES: 1. CHAMBERS SHALL MEET THE REQUIREMENTS OF ARTS FNIS-160, STANDARD SPECIFICATION FOR POLYPROPYLENE(PP) CORRUGATED WALL WORMWATER COLLECTION CHAMBERS' CHAMBER CLASSIFICATION BOAC( 2. MC4500 CHAMBERS SHALL BE DESIGNED IN ACCORDANCE WRAP ARM F2707'STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPVSTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS', 8. THE SITE DESIGN ENGINEER IS RESPONSIBLE FOR ASSESSING THE BEARING RESISTANCE (ALLOWABLE BEARING CAPI OF THE SUBORADE SOILS AND THE DEPTH OF FOUNDATION STONE WITH CONSIDERATION FOR TXE RANGE OF EXPECTED BOIL MOISTURE CONDITIONS. 4. PERIMETER STONE MUST BE EXTENDED HORIZONTALLY TO THE EXCAVATION WALL FOR BOTH VERTICAL AND SLOPED EXCAVATION WALL.. 6. REQUIREMENTS FOR HANDLING AND INSTALLATION: • TO MAINTAIN THE WIDTH OF CHAMBERS DURING SHIPPING AND XANDLNG. CHAMBERS SHALL HAVE INTEGRAL. INTERLOCKING STACKING LUGS. . TO ENSURE A SECURE JOINT DURING INSTALLATION AND BACKFILL. ME XEIGXT OF THE CHAMBER JOINT SHALL NOT BE LE.. THAN W. . TO ENSURE THE INTEGRITY OF THE ARCH SHAPE DURING INSTALUTION, 8) THE MUCH STIFFNESS CONSTANT M DEFINED IN SECTION 6.2.8 OF ABTM PUTS SMALL BE GREATER THAN OR EQUAL TOM LBNINAN. AND IN TO RESIST CHAMBER DEFORMATION DURING INSTALLATION AT ELEVATED TEMPERATURES (ABOVE T8' F /28' C). CHAMBERS SHALL BE PRODUCED FROM REFLECTIVE GOLD OR YELLOW COLORS. ii iTF BXEET s OF 9 ACCEPTABLE FILL MATERIALS: STORMTECH MC-4500 CHAMBER SYSTEMS AASHTO MATERIAL MATERIAL LOCATION DESCRIPTION COMPACTION / DENSITY REQUIREMENT CLASSIFICATIONS FINAL FILL: FILL MATERIAL FOR UYER'D' STARTS FROM THE TOP OF THE 'C' LATER TO THE BOTTOM OF FLEXIBLE ANY SOIVROCK MATERIALS. NATIVE BOILS. OR PER ENGINEER'S PLANS. PREPARE PER SITE DESIGN ENGINEERS PUBS. PAVED D PAVEMENTOR UNPAVED FINISHED GRACE ABOVE. NOTE THAT CHECK PLANS FOR PAVEMENT SUBORADE REQUIREMENTS. R. INSTALLATIONS MAY HAVE STRINGENT MATERIAL AND PAVEMENT SUBBASE MAY BE PART OF THE'D' LAYER PREPARATION REQUIREMENTS. AA HTOM+4W INITIAL FILL; FILL MATERLLL FOR LAYER C'STARTB FROM THE GRANULAR WELLOMDED SOIVAGGREGATE MIXTURES, q5%FINES OR A-1, A3d, A5 BEGIN COMPACTIONS AFTER 24' (ON mm)OF MATERIAL OVER TOP OF THE EMBEDMENT STONE ('S' UYE0.) TO 24' MOO mm) PROCESSED AGGREGATE, THE CHAMBERS 18 REACHED. COMPACT PORT UYER8IN L ABOVE THE TOP OF THE CHAMBER. NOTE THAT PAVEMENT OR 12-WOSIX) BULK LIFTS TO A MIN.05% PROCTOR DENSITY FOR SUBBASE MAY SEAPORT OF THE C'LAYER. MOST PAVEMENT SUBBASE MATERIALS CAN BE USED N LIEU OF ME WELL GRADED MATERIAL AND 95% RELATIVE DENSITY FOR LAYER. AASHTO M49' PROCESSED AGGREGATE MATERIALS. ],35T,4,4BT, S, SB, ST, B, BT, BB, T.78,9.89,9.10 EMBEDMENT STORE: FILLSURROUNDINGTHE CHAMBERS AASXTO M49' B F0.0M TXE FOUNDATMIN STONE ('A'LAYE0.)TO TXE C'LAYER CLEAN, CRUBXED, ANGULAR STONE 84 NO COMPAI REQUIRED. MOVE. A FOUNDATION STORE FILL BELOW CHAMBERS FROM THE CLEAN. CRUSHED, ANGULAR STONE AMHTO Mb' PLATECOMPACTORROLLTOMXIEVEAFLATSUWACE.•'` SUNSHADE UP TO THE FOOT MOTTOM) OF THE CHAMBER. 3.4 PLEASE NOTE: 1. THE LISTED AMXTO DESIGNATIONS ME FOR GRADATIONS ONLY. THE STONE MUST ALSO BE CLEM, CRUSHED, ANSI FOR EXAMPLE, A SPECIFICATION FOR N STONE WOULD STATE: 'CLEAN,CRUSHED, ANGULAR NO. 4(MBXTO M43) STONE', 2. STORMTECH COMPACTION REQUIREMENTS ME MET FOR LOCATION MATERIALS WHEN PLACED AND COMPACTED IN 0'030 A.)OMAN) LIFTS USING TWO PULL COVERAGES WITH A VIBRATORY COMPACTOR. 3. WHERE INFILTRATION SURFACES MAY BE COMPROMISED BY COMPACTION. FOR STANDARD DESIGN LOAD CONDITIONS. A FLAT SURFACE MAY BE ACHIEVED BY TURING OR DRAGGING WITHOUT COMPACTION EQUIPMENT, FOR SPECIAL LOAD DESIGNS. CONTACT STORMTECH COMPACTION RED UIREMENTB. 4. ONCE UYER'C' 18 PLACED, ANY 801LIMATERIAL CAN BE PLACED IN LAYER U UP TO THE FINISHED GRADE. MOST PAVEMENT SUBBME SOILS CAN BE USED TO REPLACE THE MATERIAL REQUIREMENTS OF DYER C' OR U AT THE SITE DESIGN ENGINEERS DECRETION, ADS GEOSYNTHETILS 8011 NON -WOVEN GEOTE%TILE ALL AROUND CLEM, CRUBXED, ANGULAR STONE IN A S B LAYERS PAVEMENT LAYER MESIONED BY SITE DESIGN ENGINEER) PERIMETER STONE S T:: x: C (BEE NOTE 4) - (BOO mm)MIN MA% 3y4 _ 12-(B00 mm) MIN B • 1, EXCAVATION WAIL sD "THIS Lfl088 SECTION DETAIL REPRESENTS (CHIN BE SLOPED OR VERTICAL) I u It52a mm) MINIMUMSEE THERENEWS FOR INSTALLATION. PLEASE BEE THE IAYOMT REME NTSFOR III I PROJECT SPECIFIC REQUIREMENTS. A JI �OEPTX 00 STONE TO BE O ETERMINED TV(300mm)MIN - I- g„ BY SITE ESIGN ENGINEER ES... 23O mm)MINI MN500 J 230 mm IN �100'(25RD �1R-(BDOmm)MIH END CAP BVBGRENOTE ) < ) (BEE ROTE 8) NOTES: 1, CHAMBERS SHALL MEET THE REOUIREMENTS OF ABTM MIS. 'STANDARD SPECIFICATION FOR POLYPROPYLENE(PP) CORRUGATED WALL STORMWATER COLLECTION CHAMBERS' CHAMBER CLASSIFICATION GOWOR 2. MC4500 CHAMBERS SHALL BE DESIGNED IN ACCORDANCE WITH ABTM F270T'STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS'. 8. THE SITE DESIGN ENGINEER 18 RESPONSIBLE FOR ASSESSING THE BEARING RESISTANCE (ALLOWABLE BEARING CAPACITY) OF THE SUBOMOE BOILS AND THE DEPTH OF FOUNDATION STONE WITH CONSIDERATION FOR THE RANGE OF EXPECTED SOIL MOISTURE CONDITIONS, 4. PERIMETER STONE MUST BE EXTENDED HORIZONTALLY TO THE EXCAVATION WALL FOR BOTH VERTICAL AND SLOPED EXCAVATION WALLS. B. REQUIREMENTS FOR HANDLING AND INSTALLATION: • TO MAINTAIN THE WIDTH OF CHAMBERS DURING SHIPPING AND HANDLING. CHAMBERS SHALL HAVE INTEGRAL. INTERLOCKING STACKING LVGS. • TO ENSURE A SECURE JOINT DURING INSTALLATION AND BACKFILL, THE HEIGHT OF THE CHAMBER JOINT SHALL NOT BE LESS THAN 3'. • TO ENSURE THE INTEGRITY OF ME ARCH SHAPE DURING INSTALLATION, 9) THE ARCH STIFFNESS CONSTANT M DEFINED IN SECTION 6.2.8 OF MTM MIS SMALL RE GREATER THAN O0. EQUAL TO 500 LSSMIIN. AND N TO RESIST CHAMBER DEFORMATION DURING INSTALLATION AT ELEVATED TEMPERATURES (ABOVE T8' F 128' ON. CHAMBERS SMALL BE PRODUCED FROM REFLECTIVE GOLD OR YELLOW COLORS. COVER PIPE CONNECTION TO END CAP WITH ADS GEOSTNTXETICG 601T NON -WOVEN GEOTE%TILE STORMTECH HIGHLY RECOMMENDS FLEXSTORM PURE INSERTS IN MY UPSTREAM STRUCTURES WITH OPEN ORATES ELEVATED SWABS MANIFOLD SUMP DEPTH TBD BY CATCH BRAIN ITS DE SIGN ENGINEER OR MANHOLE (24- (BOO mm) MIN RECOMMENDED) MCd500 CHAMBER 24'( BOO IN) HOPE ACCESS PIPE REQUIRED USE FACTORY PARTIAL CUT END CAP PART 8: MC450GREPENBC OR MU500REPE24BW MC-4500 ISOLATOR ROW DETAIL HIM INSPECTION S MAINTENANCE 8TEP1) INSPECT ISOLATOR ROW FOR SEDIMENT A. INSPECTION PORTS (IF PRESENT) A.I. REMOVE/OPEN LID ON NYLOPLASTINLINEDRAIN A.R. REMOVE AND CLEAN FLUSTORM FILTER IF INSTALLED A.9. USING A FLASHLIGHT AND STADIA ROD. MEASURE DEPTH OF SEDIMENT AND RECORD ON MAINTENANCE LOG AA. LOWER A"HERA INTO MOUTOR ROW FOR VISUAL INSPECTION OF SEDIMENT LEVELS (OPTIONAL) A.6. IF SEDIMENT 18 AT. OR ABOVE. B' mm) BO PROCEED TO STEP 2. IF NOT, PROCEED TO STEP 9. 1 B. ALL REMOVE COVER 8ROWS .2. USING A COVER FROM STRUCTURE CT DOWN HE ISOLATOR R OF ISOLATOR ROW B.R. ) MIRR RSOMP T. LESOR CAMERAS THE180SEDRROW THROUIDACO FINED ET PIPE SPACE U MBROW OSMOEGUUM NSF OR MAYBEUSEDSPACE IF ENTERING SPACEENTRY Ip FOLLOW OSIU. OR ABOVE. FOR CONFINEDBPALEENTRY IF ENTERINGMANHOLE 8.3. IF SEDIMENT 0 AT. OR ABOVE. 3• (BO mm) PROCEED TO STEP Y. IF NOT, PROCEED TO STEP 3. STEP R) CLEAN OUT ISOLATOR ROW USING THE JENAC PROCESS A. A FIXED CULVERT CLEANNG NOZZLE WITH REAR FACING SPREAD OF 45• (1.1 m) OR MORE IS PREFERRED S. APPLY MULTIPLE PASBE80F JENAC UNTIL BACKFLUSH WATER IS CLEAN C. VACUUM STRUCTURE SUMP M REQUIRED STEP 3) REPLACE ALL COVERS, GRATES. FILTERS, AND LIDS: RECORD OBSERVATIONS AND ACTIONS. 8TEP4) INSPECTANO CLEAN BASMS AND MANHOLES UPSTREAM OF THE STORMTECH SYSTEM. NOTES 1. INSPECT EVERY B MONTHS DURING THE FIRST YEAR OF OPERATION. ADJUST THE INSPECTION INTERVAL BASED ON PREVIOUS OBSERVATIONS OF SEDIMENT ACCUMULATION AND HIGH WATER ELEVATION$. 2. CONDUCT JETTING AND VACTORINO ANNUALLY OR WHEN INSPECTION SNOWS THAT MAINTENANCE 18 NECESSARY. MC -SERIES END CAP INSERTION DETAIL ITS T STORMTECH END CAP 12(NOSIX) MIX INSERTION MAX IFOLD STUB MANIFOLDXEADE0. +R•POB mm) 12-(900mm) MIN SEPARATION I� NIN IN8E0.TIOH NOTE: MANIFOLD STUB MUST BE UID HORIZONTAL FORA PROPER FIT IN END CAP OPENING. UNDERDRAIN DETAIL NTB STONMTECX STORMTECH CHAMBER UTLET MANIFOLD FOUNDATION, BiONE BENEATH LXAMBERS T ADS GEOSYXTHETICS BO+T NON -WOVEN GEOTEXTILE J BTORNTED END CAP FOUNDATION STONE T BENEATH CHAMBERS MS MOSYNTHETIC NON-WOVEN GEOTEXTILE ._ DESIGN ENGINEER P (100 mm) TYP FOR SC81068F180LP SYSTEMS B' Pfi0 mm)TYP FOR S4 . DC-780, MIS MCd500 SYSTEMS +2• (NO mm) MIN SEPARATION MANIFOLD HEADER MAX IFOLD STUB SECTION A A DUAL WALL PERFORATED HOPE NOERDRAIN SECTION 043 OPTIONAL INSPECTION PORT r MCI ENO CAP TWO LAYERS OF CONCRETE COLLAR PAVEMENT - A - CONCRETE SLAB A. IIL mm) MIN TXICKNESBI STORMTECH CHAMBER FOR :ONTIX000S FABRIC WITHOUT SEARS ! F3 la°�9 SHIMP 1R'(300 MR) MIN WIDTH i I I!a DDRGUMOMEQDLLARNOT REQUIRED FOR APPILCATIONS GE6 p PF E N G I N E E R I N G B• NYLOPLASTNSPECTIOx PORT yl LAND PLANNING -PROJECT MANAGEMENT BODY IPART02TO8AGJUPKD) OR TRAFFIC RATED BOX WBOLID I Bi _ LOCKING COVER 5 €Cv 4' 100 mm 0 SOFT 95 PIPE Y as 12 E. HIGH T. .227. 1 m, - 9 G S 434 5 40 k TO(IN mm) BE ON ® e CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM TO BE CENTERED CORRUGATIONVALLEY EY 94 NOTE: INSPECTION PORTS MAY BE CONNECTED THROUGH ANY CHAMBER COI 4m PVC INSPECTION PORT DETAIL (MC SERIES CHAMBER) NTS >o %O a ijyE �B I� SHEET $ OF 9 d MC4500 TECHNICAL SPECIFICATION z NTS LU V m p y > m e CREST IS WEB 41 J X u UPPER JOINT CORR0GATION m j m a3 C W O E CREST F FW j F e B E STIFFENING RIB ii O wp `T H w Pe 800' 01.0' (15N mm) (1NB mm) Ilk a 6 U w ib F Bo m m S 1 m 6 a O y B Or �1D0.D-E54o mm)-------- 9D0'1,Z..III ------ o- ewWROWINTHE 66 DIRECTION 9 9' + (B39 mmI 0EALIM p a Z pI •J (1821 mm) L �'S a �I F ss1 NOMNAL CHAMBER SPECIFICATIONS SIZE %N%INSTALLED LENGTH W0.0•%BICFEET O' R040 mm %10R4 mm %1RR)mm M' @� GXAMBER STORAGE 1o8.5CVBIC FEET URI SO) 'J MINIMUM INSTALLED STORAGE• 10R.B CUBIC FEET (Aft.') WEIGHT (NOMINAL) 12BOIOF. (66.74) a� NORMAL END CAP SPECIFICATIONS 3BP SIZE IW X X X INSTALLED LENGTH) SOf X 61.0• X 32.0• (2200 mm X 1540 mm X 633 mm) (BBB mm) ` END CAP STORAGE HBd CUBIC FEET (1Hm') �I INSTALLED i I MINIMUM STORAGE' 115.3 CUBIC FEET (328m0) 5 IE WEIGHT NOMINAL .. ON. I.S (NOMINAL) ( w) E mm)STONEIN FRONT 40% STIONANOBSITY'. CHAMBERS. ;A SUM m) STONE 12P05 mm)eTOXE PERIMETER IN FflONTOF END LAPS AND40%STONE POROSITY. OFEND) CAPE RR L� Y F PARTIAL CUT HOLES AT BOTTOM OF END CAP FOR PART NUMBERS ENDING WITH 'S' �yLLy"j PARTIAL CUT HOLES AT TOP OF END OAP FOR PART NUMBERS ENDING WITHT L IIS I PARTS STUB B C MC46001EP`OW 4261•(1081 mrN -- MG6p01EPPp0B 8' (IN mm) -- Obe'(Ra mm) MC45NIEPPWT 40'60•(108 mm) _ MC IMIEPPNB $'12M NU 1.01• (26 mm) MU5001EPP10T +0•(230 mm) 38A7-(911 mm) _ IDWCL mm) MC45DOIEPPIOB MC45001EP%3T 3S.SB•(BN DID _. MCbD01EPP12B 12• OHIO mm) -- I,66' US mm) ML45001EP%fiT NIS'(091 mm) _- MGSDOIEPPi3B 5• PTS mm) -- 1.TP(0 mm) MC45001EPPIST RS.SB'(T48 mm) _- MGSDOIEPP1aTW ,B'(450 mmI MID 46DOIEPPIBB -' 1.BP(60 mm) ML45001EPP,BBW MCI DOIEPP24T 23D6•(.e6 mm) _. MGSOOIEPPMTW 24•(600 mm) MC45DOIEPPMB _- S1e-(ST mm) MC450CIEPP248W MC45001EPP90BW WIMP.) - 2.96•P6mm) M045001EPP36BW Mr(900 mm) _ 9JSZH3mG MUSOCIEPP4SBW 4S' 1050 mm ( 1 - SJO BOmm 1 ) NOTE: ALL DIMENSIONS ARE NOMINAL o �_ ° €1 ffi Gag 5= ka mo Ee L I $:; CUSTOM PREFABRICATED INVERTS axa ME AVAILABLE UPON REQUEST, INVENTORIED MANIFOLDS I B� a� 12- (3004SO mm) SIZE ON RISE SIZE F p i. AND 1548-(375.1200 ECCENTRIC MANIFOLDS. CUSTOM INVERT LOCATIONS ON ME MCA500 END CAP CUT IN THE FIELD ARE NOT ZC RECOMMENDED FOR PIPE SIZES ! GREATER THAN IV (250 mm). THE INVERT LOCATION IN COLUMN'B' Ea SHEET ARE THE HIGHEST POSSIBLE FOR THE PIPE SEE. OF VSMP PLAN AMENDMENT ABC BLOCK 1 MASS GRADING -MAJOR AMENDMENT FOR MULTIFAMILY ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2021.12.07 REVISION: FILE NO. STORMTECH DETAILS NOTE: 11X17 SIZE COPIES OF THESE SHOP DRAWINGS ARE AVAILABLE UPON REQUEST. C9_ SSNOASSIST�; p p V Table 1-Acce fable FIII Materials °'Sto`r^T`+ch,, Manifold, Scour Fabric and Chamber Assembly p Figure 1- Inspection Port Detail FOR STORMTECH INSTRUCTIONS, 'Location I r a ensity DOWNLOAD THE Description Designation' Requirement +rlw"mm,"m API® INSTALLATION APP "IL" Y■■�■�■T /� ® ' y:3: QRnaI RII: FIIMamralfaaya'D' Prysoit4ack mammals, naeva sib WAPrepare persim design engineer's plans. Pawtl"m'"" 1 IIII- P °PAN StO■ ■ ■ ■■dch ` smnstom Nempoltie C'Iayermtie aperengineer'splans Chack irabllabous map have stringent malenal antl prepare- ". BwAIOR StormTech Construction Guide - bohom of Nate a unpaved rl paxgPaa atsubg tle lib auireme morn"„mN„xESLl a„`„o n o rryrrrryyr �_ a r .ED RE ■ ■ 11111111" ': d- Min 9mmae arserdematNeped rapiremats. An L/�/��6 cLnnluLnY ' menlsubtesermybepanofine D'layer c"xrGYTH.. .nmmm, •NWmN llllllr ,�J./M� scxEoro".c earnurw ©Hbal All: All Material forkei Grambrwell-gmtled snip PASHrO M145 Begin compaction at" min. 24"COD men of mate-J- REQUIREDMATERIALSANDEQUIPMENTLIST saeCi ayymto 2,V'M man above aouce�tl agggre9`ate5Mostifinm A1,AOn mesi�ii"a(JDDDD man bers me,I mmal Compact a i�. 95%PPre; al "°"°T`"`"N"` • Acceptable fill materials per Table 1 • StormTech solid end caps, pre -cored and pre -fabricated end caps _ metapof lhechamhaer Nommatpare pa„emem subbase maanals can AAS1frO M431 Ion densiy for wdl-gi maana and 95% wl Go 1 � „�:,'n,�"NP v. men) subloax may be pal of thil layer he Load in lieu of this apa. 3,357,4,4675,56.57, 6, dereity for pmLescetl aggregate materials. NawMe.wlsaN • Woven and non -woven geotextiles • StormTech chambers, manifolds and fittings 67,68,7,7e a,89,910 NOTE: MC-3500 chamber pallets are 77" x 90" (2.0 m x 2.3 m) and weigh about 2010 1bs. (912 kg) and MC-4500 pallets are 100" x 52" (2.5 m x 1.3 m) and (J FmbanadSmne Hume Cleamcroshvidanguars" AA4f10 M43' wcampxvonreuuired. .e.-� sunaaing Chambers Win me inundation 3,357.4 weigh about 840 lbs. (381 kg). Unloading chambers requires 72" (1.8 m) (min.) forks and/or tie downs (straps, chains, etc). ': Iry > s,'+ a•-' - storepA' ayEr)mg¢'c ayEraba6. �„CB1BBT1BAo1.x.cxuwP -id;eoxxeenox DvuL IMPORTANT NOTES' �" I OA Faundegm Slone: All below clear, cmsied, angular scone, AAS1n0 M43' Rae and mrnsct in g"('G10 mmi max lids using .mMIxP FoaGIBBILGATION n TPMsoLWPTOErxTz"N wcNo Install manifolds and lay out woven scour Align the first chamber and end cap of each Continue installing chambers by overlapping chamber end chambers tram me smgratle up m me 3,357.4 MG full coverages with a mbrdmry compacmr'= "'"mmi A. This installation guide provides the minimum requirements for proper installation of chambers. Nonadherence to this guide may result in damage to chambers geotextile at inlet rows [min. 17.5 ft (5.33 ml row with inlet pipes. Contractor may choose corrugations. Chamber joints are labeled "Lower Joint - fact lbodanl of he chami during installation. Replacement of damaged chambers during or after backfilling is costly and very time consuming. It is recommended that all installers are familiar at each inlet end cap. Place a continuous to postpone stone placement around end Overlap Here" and "Build this direction - Upper Joint" Be PLEASENOTE: with this guide, and that the contractor inspects the chambers for distortion, damage and joint integrity as work progresses. piece (no seams) along entire length of chambers and leave ends of rows open sure that the chamber placement does not exceed the reach 1. The listed AASHTO designations are /orgradatfons only. The stone mustalso be dean, crashed, angular. Far Isolator® Rows) In two layers. for easy inspection of chambers during the of the construction equipment used to place the stone. example, a specification forA4stone wouldstate: "clean, crushed, angularno.4 (AASH7101,143) stone". B. Use of a dozer to push embedment stone between the rows of chambers may cause damage to chambers and is not an acceptable backfill method. Any chambers backfill process. Maintain minimum 6" (150 mm) spacing between MC-3500 2. StarmTech compaction requirements are met her'A'lucation materials when placed and compacted in 9"(230 min) damaged by using the "dump and push" method are not covered under the StormTech standard warranty. rows and 9" (230 ram) spacing between MC-4500 rows. (max) lifts using two full coverages with a vibratory compactor. C. Care should be taken in the handlingof chambers and end caps. End cars must be stored standing upright. Avoid dropping, in or excessive force on chambers For the Isolator Row place two continuous layers of ADS 3. Where infiltration surfaces may be comprised by compaction, for standard installations and standard design load P P 9PP 9 prying Woven fabric between the foundation stone and the isolator conditions, a flat surface may be achieved by raking ordragging without compaction equipment Forspecialload during removal from pallet and initial placement. row chambers, making sure the fabric lays flat and extends destgne, coolant Shanghai for compachm requirements. Requirements for System Installation the entire width of the chamber feet. Manifold Insertion StormTech Isolator Row Detail Figure 2 -Fill Material Locations x 12'(300111 INSERTION STORMTECH COVER PIPE CONNECTION M FAD ENDCM (MLi5005HOWM AOB GEOGGNTHETICS MIT NOWWOVEN GEOTE%DLE ALL PAVEMENTL2YER(CESIBNED ENDCM GM w''TH AOBDEDS'/MHETIGB OPrImNLINBPECTON PORT AROUND CLEAN. CRUSHED ANGULAR STONE IN A a B LAYERS By SITE OE SIGN ENGINEER) Hi, 801TNON-WOVEN GECTEXTIIE CHAMBER(MI SHOWN) uuuuuuuuuuuuuuuu uu MANIFOLDSTUB MANIFOLD TRUNK D ..o ,LYI/ T i PERIMETER STONE .m MCdf 18•j..w mm)MIN MCA5c0- tl(2.1mr MA% D "- MC35c0-1B'rdW mm)MIN MC 35c0-S.tl (R.d err MPX 1 I1. IN B � iT r3W mm)MIN O (CPU BE SLCFIDORVFATICAy I MCG500 80'(1525 mmI MC 1500-dY (11dO ram) Ii ill ll G �� V V1 A I'P DEPTH OF STONETO BE DETERMINED 1Y(3o0,Nn) MCJ5c0-12'r3e0 mmi MIN T r yl I BY SITE DESIGN ENGINEERYI230 mm)MIN MIN SEPOAATION I- MWSnO-6-PlemmIMIN END CAP J/ MC 05x-912Ir, mmI MIN MC-0500-1NP r25dc ram) Ir SUBGRADE BOILe MW5W 6"IIMr..IMIN ML360U�]T'(1950 ram) +2"CasmmIMIN NOTE: MANIFOLD STUB MUST BE LND HORRONTR FOR Excavate bed and prepare subgrade per Place non -woven geotextile over prepared soils Place clean, crushed, angular stone foundation APROPER FIT IN END CAP OPENING engineer's tans. and u excavation walls. 9" 230 ram min. Install underdrains if required. 21"(WO Imp HOPE=G Ieir PiPEREGUiRED The uYERs OF ADS GEosrNTNEncS a,SWrM wovEN 9 P P ( ) q Insert inlet and outlet manifolds a minimum 12" USE FAGTORr PN CREO ENOCAP GEGTEXIME BETWEEN F ...NBTpIE AND CRV.. Compact to achieve a flat surface. 300 ram Into chamber end car s. Manifold header DEPTH TBD BY MCG500- 8.3(2.5 Be MIN mDE C NUOW FABRIC STRIP ( ) P BUMP MC-ISCP 10.3'(3.1 no MIN WIDE WWINUMS FABRIC STRIP should be a minimum 12" (300 ram) from base of STE DESIGN ENGINEER t end cap. (2C• are am] MINRECGMMENDED) 2 5 NOTES Table 2 - Maximum Allawahle Construction Vehicle Loads 1.3SN(OMmm)o/stabilizedcovermaterials overthe ,., Initial Anchoring of Chambers - Embedment Stone Backfill of Chambers - Embedment Stone and Cover Stone chambers is required for full dump truck travel andovUI'n. r fo=iLo 'a Weight Width In Dynonsc Force Auwh?gl nm] Tracks Pre !7 71TE[`kNI Ins [kN] in. [rare) par [kPa] Its [kN] 2 During paving operations, dump track axle loads on ®Frel Rll 36"19WI 32,OW[1421 16ADO V11 12"13D51 3420[164] 38.0011ssl 24"(600mm) of cover may he necessary. Precautions material Canpacletl 18"14571 2350[1131 II should be taken to avoid rutting of the road base layer, 2a" 16101 1850 M to ensure that compaction requirements have been mew 3D M1� 1310 510 [72] and that a minimum of 24"(600 min) of cover exists ©Initial Fill 24"Pq 32,an[1421 1BODOV1] 12^I30.5] 248011191 20,0001eg1 overthe chambers. Contact StormTech for additional Ma1Bal CanTNaed 18^14571 1T70[851 _ guidance on allowable axle loads during paving. 3VrA I14] 10051] 3. Ground pressure for track dozers is the vehicle � I �... - operathrgweight divided bytotal ground contact area 24"16001 24,000[104 12,000 P31 12-[M 224511071 16,p(p p11 for both tracks. Excavators will exert higher ground LasaDumi 24"16� 1325P� - pressures based on loaded bucket weight and boom 33^ 17621 1135 [55441 extension. 36[9141 1010 �,- l s - •' 18' [4501 24,000 [104 12,000 P31 12^ p051 201 O N 5,000 [24 i 4. Mini-excavators(<8,0001bs/3,628 kg) can he used with 18^14571 148071) (saticlradsonlyf are astlima ed y the ram) of maximum stone over Me chambers and ST F64 1060 ® Continue evenly backfilling between rows and around perimeter until Only after chambers have been backfilled to top of chamber and with arelimitedaby the maximumximum boom extension. in Tablez Initial embedment shall be spotted along the his is tine of the chamber evenly Ex equipment shall be operated on the bed at this stage 11 the installation. embedment stone reaches tops of chambers and a minimum 12" 300 min a minimum 12" 300 min of cover stone on to of chambers can skid based on a full bucker at maximum boom extension. ®Pmbetlanem 12^poq NOTALLOwID NDTALowm 12"13as1 1100 (531 NoluLowm anchoring the lower portion of the chamber. This is best accomplished with a Excavators must be located off the bed. Dump trucks shall not dump stone P ( ) ( ) P swore 18^14571 660 p41 of cover stone is in place. Perimeter stone must ethane horizontally to the loaders and small LGP dozers be used to final grade cover stone and S Shxmiech does not require compaction of initial rig at za^[4571 715 SA M stone conveyor or excavator reaching along the row. directly on to the bed. Dozers or loaders are not allowed on the bed at this excavation wall for both straight or sloped sidewalls. The recommended backfill material in accordance with ground pressure limits in Table 2. 18"(450 min) of cover. However, requirements by others re^ time. backfill methods are with a stone conveyor outside of the fled or build as you Equipment must push material parallel to rows only. Never push perpendicular for 6"(150 min) lifts may necessitate the use of small 6"D5q NOTA1LOwID NOTAILOPoID NOTNLOWED NOTAII NOT7aLowm go with an excavator inside the bed reaching along the rows. Backfilling while to rows. StormTech recommends the contractor inspect chamber rows before compactomat 18"(450mm) of cover. assembling chambers rows as shown in the picture will help to ensure that placing final backfill. Any chambers damaged by construction equipment shall 6. Storage of materials such as construction materials, Table 3 - Placement Methods and Descriptions Baeldill of Chambers - Embedment Stone equipment reach is not exceeded. be removed and replaced. Me Starent,spoils,em.she ld use of be equipment over Final Baekfill of Chambers - Fill Material Inserta Tee Detail Me StormTech system. The use of equipment over Me StormTech system not cevere d in Table 2 (ex. soil mixing equipment, cranes, etc) is limited. Please contact ®Fria RI Avariey of placement methods maybe 36"(900 a" Minimum DBaslopushpaalello Row travel pal m GAS StormTech for more information. Mahedal used All canswcfion bads most not brier required erns' aNulrsl36"I900 ram) ,TxdN� ",Hors eDee0memadmumllniesin Tablet. trucks m dump over compaae7 coverts Lvx P R P P a - ,�N _ �..e 7. Allowable hack loads based an vehicle travel only. _ t, - Excavatorsshallnota operate on chamber beds until the ��rs rs8sldn Ilse dynami mace ofcler l pr �' - oa"`r:YANs GEE de GAS, any alley compacted fill - 7. ' ""c' " movc HPF vela we�„ yN�GISHIMP P ®Initld Rl Excavator pasaonetl elf bed remmmentletl. ArytBd ran be tlumpatl into Smar LGP baLhtloze total back/dfreaches3feet 900 ram over the entire Memda Small excavator allowed over revarwhen compactetl loaders allwN,dmgm - �� bed.Excavatom shall not operate on chamber beds until chambers Smelltlomralmwed. 2400 ram �Ieoha 0awdertraalalimes �m� ion; Rollerea�m1 - �1� tell=_llalr_leneul- I� =----�J �I -Iu=III _Ili III l�l 0dl IIL-III-I Ill-I� �Trr �` L 1/►' 1/►',Yi Hie total back/illreaches3feet 900 ram over Me entire chambers. Equipmentsmallat push IIIW-11)r _ 111IL11�-u !'_ E N V I N E E R I N V LL• ( /p parallel paltochambermwsonly fY III bed. posquir7anb bviedm fives cl ao6rmeellimRsNme am en lyd equipment Non) UNEVEN J r N:unnTee IXFIITAIEEIO"E 30D ®E3aaxdmaa No equpmemallowetlmhare chamhers. No wheel laatlsalb'Aatl. No bacleetl equipmema Nomllasdbvrsd. cP"NErnw nI lithium cexreRm Small 0se esa'ralaaslaea Material must he load arloaetl on chambers oral omwRRuaenox LAND PLANNING - PROJECT MANAGEMENT ADS 'Tens and CantlitlamdSde"ore awllade on the ADS website, F .:'r IACENINL INEDL",TxETrsmswwm N BACKFILL EVEN BACKFILL PERIMETER NOT BACKFILLED PERIMETER FULLY BACKFILLED ct �' NrLEL«„TExEP Dx „LEmATLE . greenstripl am Drainage Systems,dDrain logo,andthe tomigoatheloparhanneahamhers chamberlled. smneain place. rl " TEDD rPSEoo „INLET„teams °FLA41"" green stripe are registered tratlemad¢dAtivancetl Drainage System, tomaanthe rap of chambers. - ,..: GMmGmLE Noclmlx�) Backfill chambers evenly. Stone column height should never differ by more Perimeter stone must be brought up evenly with chamber rows. Perimeter -- �� °ALTGNAMN Inc. SmnnTech®and the lsolafar•ROW are registered trademarked ®rlx.datiBl No Strum hresaicdas. Cantractorre.Cousiae for anycondrionsorrewiremems byomeas maketosubgrade beating than 12" 300 min between adjacent chamber rows or between chamber must be fur backfilled, with stone extended horizontal) to the excavation �-. "v ""1°r"B SmrmTech,Inc. Small capacity, dewaanng a protection ofsubgmde. ( ) 1 fully y - nMmml •uMmmy 912 E. HIGH ST. 434.227.5140 a10816 05/19cs rows and perimeter. wall. 10rai Baum I CHARLOTTESVILLE VA, 22902 JUSTIN@$HIMP-ENGINEERING.COM v LmmM e'Nm mmi Install non -woven geotextile over stone. Gectextile must overlap 24" (600 ram) MDbm +eDwmml rxNm,u ®zolsktivancm Drainage systems, Inc. where edges meet. Compact at 24"(600 mm)of fill. Roller travel parallel with rows. PANTINUMB ,NTET„rINPMNFE,„BINMAn«.. wELONL'a N::ET'R:LP-NP� TI „ Call StormTech at 888.892.2694 for technical and product information or visit www.stonntech.com 6 1 Call StormTech at 666.692.2W4 for technical and product Information or visit www.stormtech.com Y" ISOLATOR ROW STEP BY STEP MAINTENANCE PROCEDURES v SI IIMP5. LIC Np/ 5183 STEP 1 Inspect Isolator Row for sediment. t ® THE ISOLATOR ROW ISOLATOR ROW A) Inspection ports (if present) ON F I. Remove lid from floor box frame rs� ti INSPECTION/MAINTENANCE ii. Remove cap from inspection riser AL INTRODUCTION INSPECTION iii. Using a flashlight and stadia rod,measure depth of sediment and record results on maintenance log. An important component of an Stonnwater Pollution Prevention P P Y / The frequency inspection and maintenance varies c A iv. If sediment is at or above 3 inch depth, proceed to Step 2. If not, proceed to Step 3. Plan is inspection and maintenance. The StormTech Isolator Row io for h and each routine inspection schedule needs to be established for each individual B) All Isolator Rows 1. Remove cover from manhole at upstream end of Isolator Row is li patented technique to inexpensively enhance Total Suspended location based upon site specific variables. The type of land use e. iiUsing a flashlight, inspect down Isolator Row through outlet pipe Solids (TSS) removal and provide easy access for inspection and industrial, commercial, residential), anticipated pollutant load, percent cent . 1. Mirrors on poles or cameras may be used to avoid a confined space entry VS M P PLAN AMENDMENT maintenance. imperviousness, climate, etc. all playa critical role in determining the 2. Follow OSHA regulations for confined space entry if entering manhole THE ISOLATOR ROW actual frequency of inspection and maintenance practices. At a minimum, StormTech recommends annual inspections. Initially, M. If sediment is at or above the lower row of sidewall holes (approximately 3 inches), proceed to Step 2. If not, proceed to Step 3. ABC BLOCK 1 MASS The Isolator Row is a row of StormTech chambers, either SCA 60LP, the Isolator Row should be inspected every 6 months for the first year SC-310, SC-310-3, SC-740, DC-780, MC-3500 or MC-4500 models, that is surrounded with faker fabric and connected to a closely located Looking down the Isolator Row from M¢ of operation. For subsequent years, the inspection should be adjusted based upon observation of sediment deposition. STEP 2 GRADING - MAJOR manhole opening, woven is shown previous Clean out Isolator Row using the JetVac r g process. manhole for easy access. The fabric -wrapped chambers provide for and stone between the chamber aria stone case. The Isolator Row incorporates a combination of standard manholes) and strategically located inspection ports cleaning nozzle with rear facing nozzle spread of 45 inches or more is preferable 13 AA settling and filtration of sediment as storm water rises in the Isolator (as needed). The inspection parts allow for easy access to the system from the surface, eliminating the need to multiple ) pp y uhanh passes of JetVac until backflush water is clean Apply AMENDMENT F O R Row and ultimately passes through the filter fabric. The open bottom perform a confined space entry for inspection purposes. C) Vacuum manhole sump as required chambers and perforated sidewalls (SC-310, SC- 310-3 and SC-740 models) allow storm water to flow both vertically and horizontally out of If upon visual inspection it is found that sediment has accumulated, a stadia rod should be inserted to STEP 3 MULTIFAMILY _ the chambers. Sediments are captured in the Isolator Row protecting - determine the depth of sediment. When the average depth of sediment exceeds 3 inches throughout the length -�,. the storage areas of the adjacent stone and chambers from sediment- - of the Isolator Row, clean -out should be performed. Replace all caps, lids and covers, record observations and actions. accumulation. - c STEP4 ALBEMARLE COUNTY VIRGINIA Two different fabrics are used for the Isolator Row. A woven bees. ale 9 fabric is laced between the stone and the Isolator Row chambers. MAINTENANCE The Isolator Row was designed to reduce the cost of periodic maintenance. By "isolating" sediments to just Inspect &clean catch basins and manholes upstream of the StormTech system. SUBMISSION: P one row, costs are dramatically reduced by eliminating the need to clean out each row of the entire storage The tough geotextile provides a media for storm water filtration and bed. If inspection indicates the potential need for maintenance, access is provided via a manhole(s) located on 11 tta provides a durable surface for maintenance operations. It is also the ends) of the row for cleanout. If entry into the manhole is required, please follow local and OSHA rules for a 2021.12.07 designed to prevent scour of the underlying stone and remain intact - confined space entries. during high pressure jetting. A non -woven fabric is placed over the chambers to provide a filter media for flows passing through the Maintenance is accomplished with the JetVac process. The JetVac process utilizes a high pressure water REVISION: perforations in the sidewall of the chamber. The non -woven fabric is nozzle to propel itself down the Isolator Row while scouring and suspending sediments. As the nozzle is not required over the DC-780, MC-3500 or MC-4500 models as these StormTech Isolator Row with retrieved, the captured pollutants are flushed back into the manhole for vacuuming. Most sewer and pipe chambers do not have perforated side walls. Overflow Spillway (not to scale) maintenance companies have vacuum/JetVac combination vehicles. Selection of an appropriate JetVac nozzle The Isolator Row is typically designed to capture the "first flush" and will improve maintenance efficiency. Fixed nozzles designed for culverts or large diameter pipe cleaning are offers the versatility to be sized on a volume basis or flow rate basis. PRE'n0""`wTMBur preferable. Rear facing jets with an effective spread of at least 45" are best. Most JetVac reels have 400 feet An upstream manhole not only provides access to the Isolator Row but of hose allowing maintenance of an Isolator Row up to 50 chambers long. The JetVac process shall only typically includes a high flow weir such that storm water flowrates or L� now be performed on StormTech Isolator Rows that have AASHTO class 1 woven geotextile (as specified by StormTech) over their angular base stone. SAMPLE MAINTENANCE LOG volumes that exceed the capacity of the Isolator Row overtop the over l flow weir and discharge through a manifold to the other chambers. 9 9 �'� -'' ' �''_ '- StormTech Isolator Row (not to Scale) g Datit e DepthObservations/Actions The Isolator Row may also be part of a treatment train. By treating MA wlrn Note: Non -woven fabric is only required over the mistpipe connection into dye end cap forDC-780, MC-3500 and MC-4500 chamber models I. storm water prior to entry into the chamber system, the service life can ovER „.ON and is not required over the en0re/solalar Row. 3116112 6.3 ffi NWAe Neer Lwlax"iti RXed PoM.f W C1 frame aF NM be extended and pollutants such as hydrocarbons can be captured. grade 9/24/11 6.2 0.1 fb Some era fete SIA Pre-treatment best management practices can be as simple as ac„„N•„o „N„°O"'m„",,,'m" E „`�"" deep sump catch basins, oil -water separators or can be innovative KCamID m.„,Sa"",w,A ^m'' - FILE N0. 6/xe/13 11 0.6 A Mucky feel, debut vletbie i mxadi iN. A M" W storm water treatment devices. The design of the treatment train and HEADER NN„TEcxc,w- ISONLedan, R., mwwbwewce due selection of pretreatment devices by the design engineer is often � @B' NNrD._.c 18. 004 7/7/13 6.3 fE o be • m eblaed oui vaeuNmed U7M driven by regulatory requirements. Whether pretreatment is used or not, the Isolator Row is recommended by StormTech as an effective means PA to minimize maintenance requirements and maintenance costs. Note: See the StormTech Design Manual for detailed information on OP1i ".BP_.B -..", - - STORMTECH DETAILS designing inlets fora StormTech system, including the Isolator Row. AGD� BIOax1ECH avM53ara > .9N_„°.°�"°MH IBM-, xu[ .IDE ¢BINBBY a,o Ow ItttIVIU51 AUVAIV6EU NAMt IN WAItH MANAUtMtIVI bULUIILri I"""'IL ark d Drainage Systems, Inc. Redo Twemmeivo"ximem, ON om / LLLIIIYr 4640 Te eman o Nww.a4L-PtON.com 2 ° PROJECT DESCRIPTION, GENERAL NOTES, EROSION & SEDIMENT CONTROL NOTES, AND SEQUENCE OF CONSTRUCTION PROJECT DESCRIPTION THIS PROJECT IS LOCATED IN ALBEMARLE COUNTY AND WILL SERVE AS THE FINAL DEVELOPMENT OF A SITE WHICH IS BEING USED AS A BORROW SITE FOR THE ADJACENT PROPERTY ABC BLOCK 5 SELF STORAGE DEVELOPED UNDER WPO 2020-00058, ACROSS OLD LYNCHBURG ROAD. BLOCK 1 IS CLEARED AND VACANT AND WILL BE DEVELOPED INTO MULTIFAMILY APARTMENTS WITH REQUIRED INFRASTRUCTURE. THE TOTAL AREA OF DISTURBANCE IS 5.40 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 EROSION AND SEDIMENT CONTROL MEASURES AS SHOWN ON THE PLAN AND DETAILS. 3. GRADING AND PLACEMENT OF FILL SHALL BE IN GENERAL ACCORDANCE WITH THE PLAN. 4. ESTABLISHMENT OF PERMANENT STABILIZATION OF ALL DISTURBED AREAS. EXISTING SITE CONDITIONS THE EXISTING SITE IS VACANT AND ZONED R-10. ADJACENT PROPERTIES THE SITE IS BORDERED BY COUNTRY GREEN RD (SOUTH), OLD LYNCHBURG RD (NORTH & EAST), AND THE MOUNTAINWOOD APARTMENTS (WEST). OFFSITE AREAS: SOIL MAY NEED TO BE IMPORTED TO THE SITE FROM SITES WHICH SHALL HAVE EROSION CONTROL PERMITS. SOILS THE SITE CONTAINS THE FOLLOWING SOIL TYPES: 27B - ELIOAK LOAM - 2 TO 7% SLOPES, HSG B, 27D - ELIOAK LOAM - 15 TO 25% SLOPES, HSG B, 34B - GLENELG LOAM - 2 TO 7% SLOPES, HSG B, CRITICAL AREAS NO CRITICAL AREAS HAVE BEEN IDENTIFIED WITHIN THE SITE. EROSION & SEDIMENT CONTROLS 1. SAFETY FENCE: A PROTECTIVE BARRIER INSTALLED TO PROHIBIT UNDESIRABLE USE OF AN EROSION CONTROL MEASURE. STD. AND SPEC. 3.01. 2. 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. 3. 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. 4. TEMPORARY SEDIMENT TRAP: A SMALL PONDING 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. STD. AND SPEC. 3.13. TO BE CONVERTED INTO A PERMANENT DETENTION POND AT THE END OF CONSTRUCTION AS DETAILED. 5. TEMPORARY DIVERSION DIKE: A RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA WHICH DIVERTS SEDIMENT -LADEN RUNOFF TO A SEDIMENT TRAPPING STRUCTURE. MAXIMUM EFFECTIVE LIFE IS 18 MONTHS. STD. AND SPEC. 3.09. THE CLEANWATER DIVERSIONS WILL BE MADE STABLE BY THE USE OF VDOT LD-268 DESIGN STANDARDS. 6. TEMPORARY SEEDING: TEMPORARY SEEDING SHALL BE APPLIED TO ALL DENUDED AREAS WITHIN SEVEN (7) WILL DAYS TO DENUDED AREAS THAT MAY OR MAY NOT BE AT FINAL GRADE BUT L REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 14 DAYS. TEMPORARY SEEDING SHALL BE APPLIED IN CONFORMANCE WITH STD. AND SPEC. 3.31. 7. 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. 8. 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. 9. 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. 10.INLET PROTECTION: INLET PROTECTION MEASURES AROUND 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. 11.OUTLET PROTECTION: RIP -RAP SHALL BE PROVIDED AT THE OUTFALL OF CONVEYANCE CHANNELS, CULVERTS, AND STORM SEWERS IN CONFORMANCE WITH STD. AND SPEC. 3.18. OUTLET PROTECTION SHALL BE INSTALLED WITH ACCOMPANYING STORM SEWERS AND SHALL BE INSPECTED AFTER EACH RAINFALL EVENT AND REPAIRED IF NECESSARY. ANT SEDIMENT BUILD UP SHALL BE REMOVED. 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. PERMANENT STABILIZATION AND SEQUENCE OF CONSTRUCTION THE FOLLOWING ARE THE PROPOSED MANAGEMENT STRATEGIES AND DETAILED SEQUENCE OF CONSTRUCTION: BLOCK 1 PHASE 1 T. PHASE 1 IS A CONTINUATION OF THE CURRENT PERMITED MASS GRADING. 2. MAINTAIN EXISTING PERIMETER CONTROLS, AS SHOWN ON THIS SHEET, AS MASS GRADING CONTINUES. 3. WHEN IT IS TIME TO INSTALL UTILITIES AND BUILDING FOUNDATIONS, AND WHEN PHASE 2 DIVERSION HAS BEEN INSTALLED AFTER AREA IS BROUGHT TO GRADE, MOVE SEDIMENT TRAP 2 AS SHOWN AND PROCEED TO PHASE 2. BLOCK 1 PHASE 2 1. AFTER TRAP 2 HAS BEEN MOVED, INSTALL / REVISE PERIMETER CONTROLS AND TRAP 1 AS SHOWN. CONTACT ALBEMARLE COUNTY INSPECTOR FOR INSPECTIONS. 2. PROCEED TO GRADE THE SITE AS SHOWN ON THIS SHEET. THIS WILL ALLOW BUILDING FOUNDATIONS TO BE COMPLETED AND MOST UTILITIES TO BE INSTALLED. 3. MAINTAIN PERIMETER CONTROLS AND SEDIMENT TRAPS AS CONSTRUCTION PROCEEDS. APPLY TEMPORARY SEEDING AND CONSTRUCTION ROAD STABILIZATION OF THE PARKING LOT AREA AS SOON AS POSSIBLE. 4. INSTALL CURB AS SHOWN. CURB CAN REPLACE DIVERSION DIKES AFTER INSTALLED. 5. WHEN BUILDING PADS, CURB, SANITARY SEWER, WATERLINE, AND STORM SEWER SHOWN ON THIS SHEET ARE COMPLETED, PROCEED TO PHASE 3. BLOCK 1 PHASE 3 1. AS PHASE 3 BEGINS, THE MAJORITY OF UTILITIES, PARKING LOT PERIMETER CURB, AND BASE STONE SHOULD BE INSTALLED. 2. WHEN THE DRAINAGE AREAS TO BOTH TRAPS ARE STABILIZED, CONTACT ALBEMARLE COUNTY INSPECTOR FOR APPROVAL TO REMOVE AND DEWATER TRAPS. 3. WHEN TRAPS ARE REMOVED, INSTALL REMAINDER OF CURBING, STORM SEWER, SIDEWALKS, AND STORMTECH DETENTION SYSTEM. 4. WHEN SITE GRADING IS COMPLETED, PROVIDE PERMANENT STABILIZATION. PERMANENT STABILIZATION SHALL ALLOW SITE TO RETURN TO A NATURAL VEGETATED STATE. 5. WHEN SITE HAS ACHIEVED PERMANENT STABILIZATION, CONTACT ALBEMARLE COUNTY FOR INSPECTION. UPON APPROVAL OF STABILIZATION. REMOVE PERIMETER CONTROLS. 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. WATER QUANTITY SHALL BE ADDRESSED BY COMPLIANCE WITH 9VAC25-870-65.B & C BY COMPLIANCE WITH THE ENERGY BALANCE EQUATION AND BY REDUCTION OF THE 10-YR STORM EVENT FOR FLOOD PROTECTION. 2. WATER QUALITY WILL BE ADDRESSED BY THE USE OF STORMTECH SEDIMENT FILTRATION ISOLATOR ROW BMPS WHICH PROVIDE 40% TOTAL PHOSPHORUS REDUCTION AND BY THE PURCHASE OF 1.64 LBS OF NUTRIENT CREDITS. THIS SATISFIES THE RATE REQUIRED BY THE VRRM SPREADSHEET. 3. BMP'S SHALL BE MAINTAINED PER MANUFACTURER GUIDELINES ON C11. 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 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 outfoll 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. 8.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.Excovoted 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.Materiol 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 ENGINEERIN G12. LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM VSMP PLAN AMENDMENT ABC BLOCK 1 MASS GRADING - MAJOR AMENDMENT FOR MULTIFAMILY ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2021.12.07 REVISION: FILE NO. EROSION & SEDIMENT CONTROL NARRATIVE C 11 D / / / p p ■ IN Is )/ // //// // � // )/ ,/ j// / ,I L-- _ i'N�g j �i--- /� \V A AV AV <' 'B►O 1>i \V A A AVA�VAv �l l I V SEQUENCE OF CONSTRUCTION -PHASE 1 /' /,' / / / �,- t - ept \ \ \ \ s / / / SF AN6 1. PHASE 1 IS A CONTINUATION OF THE CURRENT PERMITED MASS GRADING. 2. MAINTAIN EXISTING PERIMETER CONTROLS AS SHOWN ON THIS SHEET AS/" v v v gp�w�t v v v v v �° vv �'6 `v MASS GRADING CONTINUES. / / j �P�° �5� 1h � kb%, , A5'DDT<`� vv � 's, v -- 3. WHEN IT IS TIME TO INSTALL UTILITIES AND BUILDING FOUNDATIONS AND WHEN PHASE 2 DIVERSION HAS BEEN INSTALLED AFTER AREA IS BROUGHT TO / GRADE, MOVE SEDIMENT TRAP 2 AS SHOWN AND PROCEED TO PHASE 2. 5 y� ♦ 5 vvAvvvvv v 00 TRAP 2-TQ - ° -460_ MOVED HERE ��o vvvIvlivIvI ' j / -S7 vvv AFTER PHASE 2 <D� DIVERSION �v 4�---------- INSTALLED EXISTING TRAP 2 vvv \ vv vv A �v %��/i460 DRAINAGE AREA= 2.00 AC SHIMP v vVvv /%. �oP� v v�%� = - ,Aeo�_ ENGINEERING LAND PLANNING -PROJECT MANAGEMENT r� 912 E. NIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM DD \ \ \\ \ \------------ \ \ - - -------------------- i I StIIIv� \ \ \ \ U e°�/Lic Nq. 15183 -- _ ---- -- — _ ' I III �w O t+ y. \ I II A el. wu ✓ VSMP PLAN AMENDMENT WASH RACK \ )' i i i ABC BLOCK 1 MASS DRAINS TO - -TRAP 1 DD i ; , GRADING - MAJOR v v ' \ \ a„\ \\ EXISTING TRAP 1 A \ LIMITS O ; ��' AMENDMENT FOR - SA \ \ \ �\ PCE DRAINAGE ma's \\ DISTURBANCE: / ! MULTIFAMILY C9 «� AREA= 2.00 AC — 3�, \ \ / _--- ALBEMARLE COUNTY, VIRGINIA 5.40 ACRES / - - - - - - SUBMISSION: \/ D D ''_�` 2021.12.07 Tq` \ q' \`� / j REVISION: F " a U—NU/—OHU—,U—a U_— U—oHu—oHu—aHu w + \ \ \ �' -- -_- \ /' ' ! I \ i m FILE N0. a / = 18.004 \ STq COUNTRY GR6 N ROAD \\\\ I \\ /// .875 EROSION & SEDIMENT CONTROL PLAN PHASE 1 30 0 30 60 90 J \\ \ \\ Scale: 1"=30' C 12 \. \ CONSTRUCTION OF A SILT FENCE 1992 3.35 STONE CONSTRUCTION ACCESS (WITH WIRE S UPPOR T) 1. SET POSTS AND EXCAVATE A 4"X4" 2. STAPLE WIRE FENCING TO THE POSTS. TRENCH UPSLOPE ALONG THE LINE OF POSTS. 3. ATTACH THE FILTER FABRIC TO THE WIRE FENCE AND EXTEND IT INTO THE TRENCH 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. =1 EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. SILT FENCE (SF) W. WIRE SUPPORT Not 'ro Scale Sediment Trap Design Data H Z Weir DA Wet Wet Dl Bottom Dry Dry D2 Top SA No. A B C (ft) (ft) Length (Ass) Vol. Cy Vol. Cy (ft) SA (sq. Vol. Cy Vol. Cy (ft.) (sq. ft.) (ft.) (Req.) (Prov.) ft.) (Req.) (Prov.) 1 454.0 457.0 459.0 3.0 2.0 8.4 1.40 93.8 94.3 3.0 675 93.8 97.1 2.0 1599 2 450.0 453.0 455.0 3.0 2.0 7.8 1.30 87.1 88.1 3.0 625 87.1 91.9 2.0 1521 NOTE: SEDIMENT TRAP DATA IS FOR THE NEW PHASE 2 TRAPS ORIGINAL GROUND ELEV. 1' z Top Surface Area 1.0, DRY STORAGE D2 67 CU. YD./ACRE 'AWE WET STORAGE 67 CU. YD./ACRE 7 D1 FILTER CLOTH ORIGINAL (EXCAVATED) GROUND EL=A Bottom Surface Area ELEV. xx *SEE PLATE 3.13-1 COARSE AGGREGATE CLASS I RIPRAP CROSS SECTION OF OUTLET CLASS I RIPRAP LENGTH (IN FEET) _ 6 X DRAINAGE AREA (IN AC.) IERSION DIKE **COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5 OUTLET (PERSPECTIVE VIEW) TTEMPORARY SEDIMENT TRAP (SV SILT FENCE DROP INLET PROTECTION 2 X 4' WOOD FRAME 1.5 DROP INLET i AT CORNERS PERSPECTIVE VIEWS ELEVATION OF STAKE AND FABRIC ORIENTATION I I F MIN. IIIII �� DETAIL A 3 INLET PROCTION IP) C 15 Not To Scale ICI k;milor PERSPECTIVE VIEW PERSPECTIVE VIEW PLASTIC FENCE SOURCE: CONWED PLASTICS VDOT ROAD AND BRIDGE STANDARDS VA. DSWC PERSPECTIVE VIEW METAL FENCE PLATE. 3.1 -1 TABLE 3.35-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. Cut or shredded in 4-6" lengths. Air-dried. Do not use in fine turf areas. Apply with mulch blower or by hand. Wood Chips 4 - 6 tons 185 - 275 lbs. Free of coarse matter. 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. Source: Va. DSWC 5 MULCHING MU C15 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 s DUST CONTROL C 15 Not To Scale TABLE 3.31-C TEMPORARY SEEDING PLANT MATERIALS, SEEDING RATES, AND DATES !!qq SEEDING RATE NORTHa SOUTHb t3 PLANT SPECIES 111 511 8/11 2115 5/t 9/1 CHARACTERISTICS Acre 1000 a w to to to w Io 4/30 8/15 11/1 4/30 9/1 11/15 OATS 3 bu. (up W 100 lbs., 2 lbs. X - - X - - Use spring varieties (e.g., Noble). Avene saliva not less than 50 His.) RYEd 2 bu. (up to 110 lbs., 2.5 Its. X - X X - X Use for late fall seedings, winter (Swat e cereal e not less than 50 lbs.) cover. Tolerates cold and low moisture. GERMAN MILLET 50 lbs. approx. 1 lb. - X - - X - Warm -season annual. Dies at first Setaria italics frost. May be added to summer mixes. YEGRASS' 60 lb.. 1'h lbs. X - X X - X May be added in mixes. Will lti-aomm) mow out of most stands. 15 His. 5'h on. - X - - X - Warm -season perennial. May SS bunch. Tolemtes hot, dry slopes curvula and acid, infertile soils. May be r added to mixes. 25 His. approx. Ph X X - X X - Warm season annual legume. Ac lbs. Tolerates acid soils. May be sti ulaceaI I I added to mixes. a Northern Piedmont and Mountain region. See Plates 3.22-1 and 3.22-2. b Southern Piedmont and Coastal Plain. e 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 these dates. w - May IQ be planted between these dates. 7 )TEMPORARY SEEDING (TS C15 J Not To Scale STONE CONSTRUCTION ACCESS , 70' MIN. 3" SM-2A ASPHALT TOP / COURSE z� ! z% �6" MIN. 21A AGGREGATE BASE PROFILE 70' MIN. /-ASPHALT PAVED WASHRACK EXISTING PAVEMENT 27 ®r EXISTING J 2% PAVEMENT 2% 12' MIN.* r *MUST EXTEND FUL_ ,',I'; -POSITIVE DRAINAGE OF INGRESS AND EC O TO SEDIMENT OPERATION t TRAPPING DEVICE PLAN 12' MIN, POSITIVE DRAINAGE 2% TO SEDIMENT TRAPPING DEVICE FILTER CLOTHS SECTION A -A A miuunlun water tap of 1 inch must be hlstalled with a o ininin u 1 inch ballcock shutoff vah a supplying a wash hose NNith a diameter of 1.5 inches for adequate constant pressur e. Wash water III be carried away from the entrance to an approved settling area to remove sedanent. All sedu11eut shall be prevented from entering storm drains, ditches of watercourses. PAVED WASH RACK NO SCA-E 8 PAVED CONSTRUCTION ENTRANCE (PCE) C15 J 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. May 1 through August 15: Kentucky 31 Fescue - 128 lbs/acre; Red Top Grass - 2 lbs/acre; Foxtail Millet - 20 lbs/acre. August 16 through October 31: Kentucky 31 Fescue - 128 lbs/acre; Red Top Grass - 2 lbs/acre; Annual Rye - 20 lbs/acre. November 1 through February 15: Kentucky 31 Fescue - 128 lbs/acre; Red Top Grass - 2 lbs/acre; Winter Rye - 20 lbs/acre. 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. LOW MAINTENANCE GROUND COVER: SOUTHEAST NATIVE GRASS SEED MIX (AMERICAN MEADOWS INC.) For slopes steeper than 3:1 grade, Mix the following seeds at 30 lbs/acre each, along with EC-2 Matting: Virginia Wildrye (Elymus virginicus), Little Bluestem Grass (Schizachyrium scoporium), Purpletop (Tridens flavus), Broomsedge (Andropogon virginicus), and Indian Grass (Sorghastrum nutons). PERMANENT SEEDING (PS C15 Not To Scale Compacted Soil f Flow SHIMP ENGINEERIN 32 LAND PLANNING - PROJECT MANAGEMENT 912 E. HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM VSMP PLAN AMENDMENT ABC BLOCK 1 MASS GRADING - MAJOR AMENDMENT FOR MULTIFAMILY ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2021.12.07 REVISION: FILE NO. = EROSION & SEDIMENT CONTROL DETAILS c15 Not To Scale 4 SAFTY FENCE SAF 11 RIGHT OF WAY DIVERSION RWD C15 Not To Scale C15 C15 Not To Scale n\ / --/-- -- NOTE:— POA=POINT OF ANALYSIS DA = DRAINAGE AREA\- TOC=TIME OF CONCENTRATION--- AC=ACRES POA=POINT OF ANALYSIS\\ DA _ \ T DRAINAGE TOCE OF CONCENTRATION AC=ACRES 434.0 NQrl / // It d/- �� \ \ vvv\OVA\\ \ �'i,/ , O S i�/,�//,'�' i i� A/ / l 00 I I / / l , _—_— V A �� VAV vvv \ \ \� �� /•--_.- � i // i/ � � / i' � / ,/ / ��/ / / // i � / 1 , 1 1 1 A 1 �/'III I II// A\ 1, � /// � / / / /,'�/- I %I _ \�\� _mow✓ . - / / . . � 1 \ 1 , \ \ / / / P 'e.\ \� \\ �� \� '''' �^" /' — —_ — \ I / /' / / tl \\ \ \ C\�°c \\ � \ �\\\ ��\\ / / — ^i_-- i — '_ \ I / \ / / / / / I I I I I I I I I � \ �. �� ENGINEERING2. \ \\ \ \ ♦\ \\ \ \ LAND PLANNING - PROJECT MANAGEMENT \ \ ♦ _ - , / ✓ , / / I I I I I I l . 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HIGH ST. 434.227.5140 CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM VSMP PLAN AMENDMENT ABC BLOCK 1 MASS GRADING - MAJOR AMENDMENT FOR MULTIFAMILY ALBEMARLE COUNTY, VIRGINIA SUBMISSION: 2021.12.07 REVISION: FILE NO. VRRM MAP =I 30 0 30 60 90 Scale: 1' =30' C17 / / \ / ------- --------------- Al \ KO\ isp� \ i / Sp \\\\\ // /// /�/ � / / � � I�' \\ \ \ ""• boo \\\\\\\\ \\\ —_ � \ B4 I I I I I + I ,' � � A� \ _ / / 5850 SF vv ,_ I I I I i �� Al I 1 9290 SF vv SF vv `vvv v_ 43 ou B21B a' EX CULVERT-- +\+ 18720 SF B2 , i 20200 SIF + F2 `\ % // //// / ///-_I - ---- \ D1 SHIMP ---- -- - 13760SF �3 A ; �/ / /I ENGINEERING �� LAND PLANNING -PROJECT MANAGEMENT \ __— � ` - C2 912 E. 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Impervious Turf C A E3 E2 10,050 00 60% 0% 6,030 0 0.66 0.00 0.23 0.00 4,020 0 El 00 0% 0 0 0.00 0.00 D2 11W 13,760 90%12,0341 1.376 0.84 0.32 D1 00 90%0 0.000.00 C4 3 0.00 0.84 0.00 0.05 UD 2,260 0%0 90%226 C2 2,020 10%1,818 0.36 0.05 C1 Cl 33,800 00 80% 0%0 760 0.78 0.00 0.78 0.00 B4 5,850 80% 4,680 1,170 0.78 0.13 B3 B28 B2A 9,290 18,720 00 80% 80% 0% 7,432 14,976 0 1,858 _ 3,744 0 0.78 0.78 0.00 0.21 0.43 0.00 B2 18,780 60% 11,268 7,512 0.66 0.43 Bl jhrm, 1,160 80% 928 232 0.78 0.03 AS A4 00 00 0% 0% 0 0 0 0 0.00 0.00 0.00 0.00 A3 A2 00 00 0% 0% 0 0 0 0 0.00 0.00 0.00 0.00 0.30 0.00 Al AO 13,180 00 30% 0% 3,954 0 _ 9,226 0 0.48 0.00 F2 Fl 19,300 00 50% 0% 9,650 9,650 0 0.60 0.00 0." 0.00 0 EX. CULVERT 14,745 20% 2,949 11,796 0.42 0.34 8" DRAIN 12" DRAIN 10,000 20,000 100% 100% 10,000 20,000 0 0 0.90 0.90 0.23 0.46 LD-204 ABC BLOCK 1 Stoneware Inlet Computations plate on Cut C3 DI-38 8 0.05 0.84 0.03 4.0 0.17 0.17 0.015 0.030 0.030 - 1A oA 100.0% 0.17 0.00 6.5 D.28 028 2.8 1A 100.0% am Ow 02 DI38 4 0.05 0.96 0.02 4.0 0.07 am o025 0.050 0.000 O.w3 02 0.8 foal O.M OA0 6.5 0.11 0.11 0.9 0.9 t00.OX 0.11 am CIA DI-3B 10 0.M 0.78 0.61 CO 2.42 PAP 0.015 0.010 0.020 O.o69 2.1 B 0.35 84 6.5 3.93 am 2A 8 0.42 10.3 84 DI-3A 2 0.13 111 0.10 4A 0.42 042 0.015 0.015 0.015 0.083 1.9 6 0.32 1A 6.5 0.80 0.60 2A 8 0.36 3.7 83 DI-38 8 0.21 111 0.17 4.0 0.87 OA7 0.015 0.020 0,020 O.o63 2.1 8 0.35 2A 6.5 1.08 1A8 28 6 0.43 4.3 BOB DI-38 10 0.43 0.78 III C 1.34 1.34 0.015 0.030 0.030 1A 6 0.30 0A 6.5 2.18 2.19 21 6 am 6.0 32 DI3B 10 0.43 0.68 1128 &0 1.14 1.14 0.015 0.016 0.015 0.063 2.7 8 0.45 5.7 6.5 1.65 1.85 a0 6 am 7.8 I. CULVERT COB 10 0.34 OA2 0.14 CO 0.57 1.08 1.63 0.015 oo 0.020 0.063 3.9 12 0.33 22 a5 ow in 2,65 13.0 I 12 1.0 11.6 NOW: inlet in ditch. No conllirl LD-229 Storm Drain Design Computations ABC BLOCK 1 From To Catch. Runoff Increment Accum. Total 10-yr 10-yf Up Down Pipe Inver) Pipe Pipe Velocity Flow time Seucture Shuclure Area Cost AC AC TOC Intensity Flow Invert Invert Length Slope Diameter Capacity Increment (act (min) (inlhr) (Cl Elev. Efev. (ff) % (in) (ofs) (ff/s) (min) 1 2 3 1 4 1 5 1 8 1 7 1 8 1 9 10 11 1 12 13 14 15 16 17 E3 E2 0.23 0.66 0.15 0.15 5.00 6.81 1.04 474.00 467.20 113.15 6.01% 15 17.1 7.7 0.24 E2 E1 0.00 0.00 0.00 0.36 5.24 6.74 2.42 467.00 464.00 25.81 11.62% 15 23.8 12.4 0.03 E1 BMP 1 0.00 0.00 0.00 0.36 5.28 6.73 2.42 461.20 461.19 2.00 0.51 24 17.4 3.9 00.01 D2 D1 0.32 0.84 0.27 0.27 5.00 6.81 1.81 462.50 461.20 23.23 5.60% 15 16.5 8.8 INEF0.04 D1 BMP 1 0.00 0.00 0.00 0.27 5.00 6.81 1.81 461.20 461.19 2.00 0.50% 24 17.4 3.7 0.01 C3 C2' 0.05 0.84 0.04 0.04 5.00 6.81 0.90 459.00 455.20 135.80 2.80% 18 19.0 5.6 0.40 C2 01 0.05 0.36 0.02 0.06 5.40 6.70 1.00 455.00 452.50 28.59 8.74% 18 33.6 8.8 0.05 C1A C1 0.78 0.78 0.61 0.61 5.00 6.81 4.12 459.00 455.50 41.00 8.54% 15 20A 13.0 - 0.05 A4 A3• 0.00 0.00 0.00 0.00 5.00 6.81 8.90 448.55 446.50 20.00 10.25% 24 78.5 16.5 �0.02 \ A3 A2 0.00 0.00 0.00 0.00 5.02 6.80 8.90 443.50 440.50 28.00 10.71% 24 80.2 16.8 -�0.03 A2 Al 0.00 0.00 0.00 0.00 5.05 6.80 8.90 435.00 432.50 80.00 3.131%, 30 78.6 10.6 0.13 Al AO 0.30 0.48 0.15 0.15 5.17 6.76 9.88 432.00 430.67 60.00 2.22% 30 66.2 9.7 0.10 F2 FI 0.44 0.60 0.27 0.27 5.00 6.81 1.81 451.20 451.00 25.49 0.78% 15 6.2 4.5 0.09 \ I ( EX. CULVERT OUTLET 0.34 0.42 0.14 0.41 5.09 5.09 2.08 2.00% 15 7.9 5.4 'SLOPE TO BE VERIFIED. FLOW IS LESS THAN EXISTING I 8" DRAIN B4 0.23 0.90 0.21 0.21 5.00 6.81 1.41 1.20 1.00 10.00 2.00% 8 2.0 5.8 12"DRAIN B3 0.46 0.90 0.41 0.41 5.00 6.81 2.81 1.20 1.00 10.00 2.00% 12 5.6 7.0 C 10-Yr Peak Runoff from HytlroCAD Modelling Cpmputetl for analysis of sewer downstream BMP + \ \\ `\ \ \ \ \ \ •• 100-Yr Peak Runoff (Rational Method) Computed far analysis of sewer downstream BMP \ / _ 4- - --------- -_ _ AO / ------------ \ Al o, _SF J _ \ 133 3180 SF 289290 SF or, I I I I I I // \\ \ / -i = -_��\ ` / / r' /------ / e 2 ', xCULVERT 0200 SF + \I a li I ow O .4w wo, VIN / / / / / _,. _ _ I I I I I t' \ I I I, I I l 1 ' I CHARLOTTESVILLE VA, 22902 JUSTIN@SHIMP-ENGINEERING.COM asses sesseas -'-:0 � i i l \ / / ___-_____ --- � / / III IIII III \ IIII III I 1 I I I I I III I ✓ 11j I III l; , � �C , , I I IIIIIII I IIII III / C1A J/Ii lit i '- \\I iiilliii i U StIIMP> 33800 SF 6 _ I O I 0000sa �I A- Ii , V / / Illeass sea / ------------- VSMP PLAN AMENDMENT iii ttr 1 \ // ''� '� , \eas / \\ OS/ I I ----__--_ 00 II '' - ,-- _------- ABC BLOCK 1 MASS / - - - - '- GRADING - MAJOR - - - - -- - --- // j -- ✓ �_450,` -- AMENDMENT FOR MULTIFAMILY 0 SF I o ALBEMARLE COUNTY, VIRGINIA 1z SUBMISSION: ---- --- ---\--- _ -- 2021.12.07 I - ---------\ \ ` / I III 1 \ I I I / I � %�--------- %-- -480= \\ \\\ \ `\ i III 1 I i % REVISION: FILE NO. 18.004 POSTDEV INLET MAP & DRAINAGE CALCULATIONS 30 0 30 60 90 y n Scale: 1I'=30' C20_