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HomeMy WebLinkAboutWPO201100025 Plan - E&S Erosion Control Plan 2011-04-22AW010N 5EDIMENT CONTROL PLAN fOR fOAL RUN 5ADDLERY TAX MAP GO, FARCEL5 G9E3 * G9E ALE3EMARLE COUNTY, VIRGINIA VICINITY MAP SCALE: 7NV=1,000. SHEET INDEX SHEET C I - COVER SHEET SHEET C2 - EROSION � SEDIMENT CONTROL PLAN SHEET C3 - EROSION * SEDIMENT CONTROL DETAILS SOIL EROSION & SEDIMENT CONTROL SYMBOLS N0. TI TLE KEY GENERAL CONSTRUCTION NOTES �':i•"' ;-'!;� ��� 1,�` is a? 1. Prior to any construction within any existing public right-of-way, including connection to any existing road, a permit shall be obtained from the Virginia Department of Transportation (VDOT). This plan as drawn may not accurately reflect the requirements of the permit. Where any discrepancies occur the requirements of the permit shall govern. 2. All materials and construction methods shall conform to current specifications and standards of VDOT unless otherwise noted. 3. Erosion and siltation control measures shall be provided in accord�7nce with the approved erosion control plan and shall be installed prior to any clearing, grading or other construction. 4. All slopes and disturbed areas are to be fertilized, seeded and mulched. 5. The maximum allowable slope is 2:1 (horizontal: vertical). Where reasonably obtainable, lesser slopes of 3:1 or better are to be achieved. 6. Paved, rip -rap or stabilization mat lined ditch may be required when in the opinion of the County Engineer, or designee, it is deemed necessary in order to stabilize a drainage channel. 7. All traffic control signs shall conform with the Virginia Manual for Uniform Traffic Control Devices. 8. Unless otherwise noted all concrete pipe shall be reinforced concrete pipe - Class III. 9. All excavation for underground pipe installation must comply with OSHA Standards for the Construction Industry (29 CFR Part 1926). GENERAL CONSTRUCTION NOTES FOR EROSION AND SEDIMENT CONTROL PLANS 1. The plan approving authority must be notified one week prior to the pre -construction conference, one week prior to the commencement of land disturbing activity, and one week prior to the final inspection. 2. All erosion and sediment control measures will be constructed and maintained according to minimum standards and specifications of the Virginia Erosion and Sediment Control Handbook and Virginia Regulations 1R 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 me,..sures at all times during land disturbing activities and during site development until final stabilization is achieved. 8. During dewatering operations, water willl be pumped into an approved filtering device. 9. The contractor shall inspect all erosion control measures periodic °7 and after each runoff producing rainfall event. Any necessary repairs or cleanup to maintain the effectiveness of the erosion control devic-s 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 than 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 lbs/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 se,;ding, and mulch. Agricultural grade limestone shall be applied at 90lbs/1000sf, incorporated into the top 4-6 inches of soil. Fertiliser 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 repair immediately. Silt traps are to be cleaned when 50% of the wet storage volume is filled with sediment. All seeded areas are to be reseeded when necessary to achieve a good stand of grass. Silt fence and diversion dykes which are collecting sediment to half their height must be cleaned and repaired immediately. 20. All temporary erosion and sediment control measures are to be emoved 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 wi'hin 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) SOILS INFORMATION The site contains the following soil types: wgrlOwn 2D - Albemarle Fine Sandy Loam - 15 to 25% Slopes 3.02 CONSTRUCTION ENTRANCE CE 3D - Albemarle Very Stony Fine Sandy Loam - 15 to 25% Slopes 21B - Culpeper Fine Sandy Loam - 2 to 7% Slopes 3.05 SILT FENCE SE 21C - Culpeper Fine Sandy Loam - 7 to 15% Slopes 47E - Louisburg Sandy Loam - 25 to 45% Slopes 3.09 TEMPORARY DIVERSION DIKE DD 3.12 DIVERSION DV SITE NOTES: 3.14 TEMPORARY SEDIMENT BASIN SB Source of Topography: Albemarle County GIS Data, NAVD88 Datum Source of Boundary: Plats of record. A field survey was not perfo med. 3.18 OUTLET PROTECTION OP 1. All excavation for underground pipe installation must comply with OSHA Standards for the Construction Industry (29 CFR Part 1926). 1 2. The location of existing utilities across or along the line of the proposed work are not necessarily shown on the plans and where 3.31 TEMPORARY SEEDING TS �¢ structures as necessary. 3. The contractor shall verify the locations of all boundaries, buildings, vegetation and other pertinent site elements. 3.32 PERMANENT SEEDING PS 4. The contractor shall be responsible for notifying "MISS UTILITY" - 1-800-552-7001. SITEa'sj d. � +�tAu'al 3.35 MULCH MU This expense is the contractor's responsibility. 6. Contractor shall be responsible for obtaining all necessary permi.s, inspections, bonds, and other related items in accordance with local 3.39 DUST CONTROL DC and state policy. These permits include but are not limited to o VPDES permit. Oe CiD I01 `,J7 3 1 az" w Vint s € A lit 3 A: elf' 5 Iq ,c) d„ I i r r OU"'N , 94 1 `� u,,? n ` , barr ,<k 5 SHEET INDEX SHEET C I - COVER SHEET SHEET C2 - EROSION � SEDIMENT CONTROL PLAN SHEET C3 - EROSION * SEDIMENT CONTROL DETAILS SOIL EROSION & SEDIMENT CONTROL SYMBOLS N0. TI TLE KEY GENERAL CONSTRUCTION NOTES �':i•"' ;-'!;� ��� 1,�` is a? 1. Prior to any construction within any existing public right-of-way, including connection to any existing road, a permit shall be obtained from the Virginia Department of Transportation (VDOT). This plan as drawn may not accurately reflect the requirements of the permit. Where any discrepancies occur the requirements of the permit shall govern. 2. All materials and construction methods shall conform to current specifications and standards of VDOT unless otherwise noted. 3. Erosion and siltation control measures shall be provided in accord�7nce with the approved erosion control plan and shall be installed prior to any clearing, grading or other construction. 4. All slopes and disturbed areas are to be fertilized, seeded and mulched. 5. The maximum allowable slope is 2:1 (horizontal: vertical). Where reasonably obtainable, lesser slopes of 3:1 or better are to be achieved. 6. Paved, rip -rap or stabilization mat lined ditch may be required when in the opinion of the County Engineer, or designee, it is deemed necessary in order to stabilize a drainage channel. 7. All traffic control signs shall conform with the Virginia Manual for Uniform Traffic Control Devices. 8. Unless otherwise noted all concrete pipe shall be reinforced concrete pipe - Class III. 9. All excavation for underground pipe installation must comply with OSHA Standards for the Construction Industry (29 CFR Part 1926). GENERAL CONSTRUCTION NOTES FOR EROSION AND SEDIMENT CONTROL PLANS 1. The plan approving authority must be notified one week prior to the pre -construction conference, one week prior to the commencement of land disturbing activity, and one week prior to the final inspection. 2. All erosion and sediment control measures will be constructed and maintained according to minimum standards and specifications of the Virginia Erosion and Sediment Control Handbook and Virginia Regulations 1R 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 me,..sures at all times during land disturbing activities and during site development until final stabilization is achieved. 8. During dewatering operations, water willl be pumped into an approved filtering device. 9. The contractor shall inspect all erosion control measures periodic °7 and after each runoff producing rainfall event. Any necessary repairs or cleanup to maintain the effectiveness of the erosion control devic-s 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 than 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 lbs/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 se,;ding, and mulch. Agricultural grade limestone shall be applied at 90lbs/1000sf, incorporated into the top 4-6 inches of soil. Fertiliser 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 repair immediately. Silt traps are to be cleaned when 50% of the wet storage volume is filled with sediment. All seeded areas are to be reseeded when necessary to achieve a good stand of grass. Silt fence and diversion dykes which are collecting sediment to half their height must be cleaned and repaired immediately. 20. All temporary erosion and sediment control measures are to be emoved 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 wi'hin 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) SOILS INFORMATION 0 :E 000 00 0 10 �Z oA/ N W W Z � 0 Z W W IL Z 2 0= _V) Z F I) v JUSTIN M. SHIMP > Lic. No. 45183 1-16 I! � -I �-�,SS70NAL QCs Date 04/04/11 Scale N/A Sheet No. C1 OF 3 File No. 11.006 The site contains the following soil types: 2D - Albemarle Fine Sandy Loam - 15 to 25% Slopes 3.02 CONSTRUCTION ENTRANCE CE 3D - Albemarle Very Stony Fine Sandy Loam - 15 to 25% Slopes 21B - Culpeper Fine Sandy Loam - 2 to 7% Slopes 3.05 SILT FENCE SE 21C - Culpeper Fine Sandy Loam - 7 to 15% Slopes 47E - Louisburg Sandy Loam - 25 to 45% Slopes 3.09 TEMPORARY DIVERSION DIKE DD 3.12 DIVERSION DV SITE NOTES: 3.14 TEMPORARY SEDIMENT BASIN SB Source of Topography: Albemarle County GIS Data, NAVD88 Datum Source of Boundary: Plats of record. A field survey was not perfo med. 3.18 OUTLET PROTECTION OP 1. All excavation for underground pipe installation must comply with OSHA Standards for the Construction Industry (29 CFR Part 1926). 2. The location of existing utilities across or along the line of the proposed work are not necessarily shown on the plans and where 3.31 TEMPORARY SEEDING TS shown based on "MISS UTILITY" markings and are only approximately correct. The contractor shall locate all underground lines and structures as necessary. 3. The contractor shall verify the locations of all boundaries, buildings, vegetation and other pertinent site elements. 3.32 PERMANENT SEEDING PS 4. The contractor shall be responsible for notifying "MISS UTILITY" - 1-800-552-7001. 5. Any damage to existing utilities caused by the contractor or its subcontractors shall be the contractor's sole responsibility to repair. 3.35 MULCH MU This expense is the contractor's responsibility. 6. Contractor shall be responsible for obtaining all necessary permi.s, inspections, bonds, and other related items in accordance with local 3.39 DUST CONTROL DC and state policy. These permits include but are not limited to o VPDES permit. 0 :E 000 00 0 10 �Z oA/ N W W Z � 0 Z W W IL Z 2 0= _V) Z F I) v JUSTIN M. SHIMP > Lic. No. 45183 1-16 I! � -I �-�,SS70NAL QCs Date 04/04/11 Scale N/A Sheet No. C1 OF 3 File No. 11.006 TEMPORARY DIVERSION DIKE COmDUcted Soil 4.5' min. TEMPORARY DIVERSION DIKE DD ' Not To Scale 70' MIN EXISTING A 3' PAVEMENT 5:1 =1 11=1 11=1 11=11 11=1 I I-- II�II�II�II++, 6" MIN. A MOUNTABLE BERM FILTER (OPTIONAL) CLOTH EXISTING SECTION C -C GROUND 70' MIN 0 J= - z 10 KAI EXISTING N PAVEMENT C Z7 VDOT #1 > COARSE 0 AGGR1�GATE *MUST EXTEND FULL WIDTH OF INGRESS AND EGRESS PLAN VIEW OPERATION 12' MIN I FILTER CLOTH 3" MIN 3" MIN SECTION A -A 5 Stone Construction Entrance CE Not To Scale TABLE 3.31-T3 ABLE TEMPORARY SEEDING PLANT MATERIALS "QUICK REFERENCE .FOR ALL REGIONS" Rate Species Ibs. acre Sept. 1 - Feb. 15 50/50 Mix of Annual Ryegrass (Lolium multi-iloxumi & 50-100 Cereal (Winter) Rye (Secale cereale) Feb. 16. - Apr. 30 Annual Ryegrass 60 -100 (Lolium multi-fleru n) May 1 - Aug 31 German Millet 50 (Setaria italica) Source: Va., DSWC s TEMPORARY SEEDING TS - Not To --- --- ----------- - ---------------- C3 Scale PIPE OUTLET CONDITIONS 6'(MIN.) 'IPE OUTLET TO WELL )EFINED CHANNEL SECTION A -A T FILTER CLOTH KEY IN 6"-9"; RECOMMENDED FOR ENTIRE PERIMETER NOTES: 1. APRON LINING MAY BE RIPRAP, GROUTED RIPRAP, GABION BASKET, OR CONCRETE. 2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED USING PLATES 3.18-3 AND 3.18-4. 3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT LESS THAN 6 INCHES. OUTLET PROTECTION (OP Not To Scale 1. SET THE STAKES. 6'MAX. FLOW 3. STAPLE FILTER MATERIAL TO STAKES AND EXTEND IT INTO THE TRENCH. 2. EXCAVATE A 4"X 4" TRENCH UPSLOPE ALONG THE LINE OF STAKES. 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. FLOewG SHEET FLOW INSTALLATION (PERSPECTIVE VIEW) \ FI OW POINTS A SHOULD BE HIGHER THAN POINT B. DRAINAGEWAY INSTALLATION (FRONT ELEVATION) SILT FENCE SF C3 Not To Scale SEDIMENT BASIN SCHEMATIC CORRUGATED METAL - ANTI -VORTEX DEVICE (SEE PLATE 3.14-10 IN VESC HANDBOOK) DESIGN HIGH WATER (25 -YR. STORM ELEV.) .10 TOP OF DAM ELEV.=544.0 CREST OF EMERGENCY SPILLWAY ELEV.=542.7 MIN. 1.0' f- b RISER CREST ELEV.=542.0 DEWATERING DEVICE ELEV.=538.5 -18" CMP © 5% Slope � 1 18" CMP Inv. In=532.00 J� � T SEDIMENT CLEANOUT POINT N 18" CMP Inv. Out=528.10J ELEV. = 536.0 5' Dia. Concrete Base (" WET " STORAGE REDUCED TO 34 C.Y./ ACRE) NOTE: 1. ANTI VORTEX DEVICE H=13" D=36". SEE VESC DESIGN ELEVATI CIN S WITH HANDBOOK FOR MORE DETAIL. EMERGENCY SPILLWAY (a),SEDIMENT BASIN SB Not To Scale TALELIE; .35-A 'i r,:.G�A_NTC _,NtU�,,Cgl t. e'€tk.:.to i'e.LS AND AC I.., �.�. AI[10N xLl.TEN' 3, s q�A 3 MPJ ,, ES N(Y) : .r Acre, e r 10010 So, ft SO,avw or 1 ay 1 2 teras � `0 90 NFfee lrr nak weeds and coal se of an i Ir% = i rfaalter. Miisthe L<1(ir€�. spread witll mnilf1-1 bleu"Ver W111tcr cover er } or byand- ;Fibcr 5 lualc li S7 Muni _3 1be�. Do not use-, as mailch f€,)r a [[[ l�t_4l 1-*_ ,sinter cover or during hot-, dry p rlods.*Apply as l X111 is x" y r b Corn Stalks 1 4 - 6i 1'cr31s, 18 275 lbs, $ Cut or slit et1de -al. 4.611 A g �-uvhs, Air-dried, Do not u -se in fine turf rireas. AT��l I t1 ),Tiji1 bj v r or b l hand. %Vood Chips 4 - 6 to -is 185 - 275 lbsFree of coarse, rr.iatter. Air - IS dried. Treat wiffi, 12 lbq E 71it C Berl per ton.too rx'ot aloe 1r fine Lurf area .. A t)l. I will, ninicli blr, over Elrnip I handl.e-r, or by hajid. I; sly �1 ll iii. 3..Free ¢l.isrsaticr- Air - 7 i N Vd s. dried. Do aot -us in, fine Sl,i.rc. rld --d 1 tuff areas, A1�ply ��s4th f3ark, iM-aulch blower, chip handler, or by h"[J r Iv 4i�i- fll:y_",r rnal.ch is til[. only available "rr lch diaring penc-(Jus wbea -sirs. ggs ... 1d 3_ }} -i. .: 7"�T "'€ +�� q -q -q ` ay <<-p. 3- z w-,- ¢ _. ''S �+' - '_ x - -1..yx ,} :$1 . �3. t rn, q`" 1[n 't. Sl i @,1y seed, w''�;.�`A-✓l at a 5.k a.:�u3-A,SaMild. g�:�w, -.4 of 000) lb-s-/YXc. or 4_5 li��},,��;.Y30 -5 �Lc ft, 51 a� a, Soar e- Va, SWC. K�8 MULCHING___MU_ C3 Not To Scale PERMANENT SEEDING SPECIFICATIONS February 16 through April 30: Kentucky 31 Fescue - 128 Ibs/acre; Red Top Grass - 2 lbs/acre; Annual Rye - 20 lbs/acre. Add 20 lbs/acre Indian grass when slopes are greater than 3:1. May 1 through August 15: Kentucky 31 Fescue - 128 lbs/acre; Red Top Grass - 2 lbs/acre; Foxtail Millet - 20 Ibs/acre. Add 20 lbs/acre Indian grass when slopes are greater than 3:1. August 16 through October 31: Kentucky 31 Fescue - 128 lbs/acre; Red Top Grass - 2 lbs/acre; Annual Rye - 20 lbs/acre. Add 20 lbs/acre Indian grass on slopes greater than 3:1. November 1 through February 15: Kentucky 31 Fescue - 128 lbs/acre; Red Top Grass - 2 lbs/acre; Winter Rye - 20 lbs/acre. Add 20 Ibs/acre Indian grass on slopes greater than 3: 1. MULCHING SPECIFICATIONS: Straw or hay at a rate of 2 tons/acre. Must be anchored. Spread with mulch blower or by hand. LIME AND FERTILIZER SPECIFICATIONS: Lime and fertilizer needs should be determined by 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 County 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 Ibs. per acre of 10-20-10 (10 lbs. per 1,000 square feet) or equivalent. 4 PERMANENT SEEDING PS C3 Not To Scale DIVERSIONS 10% SETTLEMENT TYPICAL VEE -SHAPED DIVERSION ri" DIVERSION DV ------------ C3 Not To Scale 1..� 0 0 0 1 I 0 0 ff N W W ^Z 0 / Z " W W W � 1 �+ Z L r -, __ I W F N N `- N w XQ O d do go -1USTIN M. SHIMP c Lic. No. 45183 E 0 o N N CD Date 04/04/11 Scale N/A Sheet No. C3 OF 3 File No. 11.006