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Home My WebLink AboutSUB200300212 Plan - Approved Stormwater Management Plan 2003-09-12MODIFIED EC -1 CLASS i DETAIL A B DITCH A 8 SECTION A -A 2' 2' 2' USE SIDE SLOPE OF EXISTING CHANNEL Limits of Disturbance WEIR LENGTH: WEIR HEIGHT: TOP OF BERM: TOP OF WEIR: BOTTOM OF WE LOW POINT: BERM WIDTH: OTEXTILE FABRIC SECTION B -B 2 DEPTH LGEOTEXTILE FABRIC ENERGY DISSIPATOP- DETAIL Additional Notes 1) Contractor to have all stockpile aroas Pre- approved by the County. 2) All culvert work must be done in the dry 3) Stormwater runoff from all disturbed areas shall be directed into adequate sediment trapping devices, as determined by VESCL, until the site is deemed stabilized by the program administrator. 4) All entrances except for the approved construction entrance shall be blocked in such a manner as to not allow access to the site. 5) Temporary construction entrance is required for this site. Standard E! Specification 3.02 is adequate due to the lack of available water to the site. Should the temporary construction entrance not be maintained properly or an excessive amount of soil found tracked onto the public roadway, then a paved construction entrance, water tanker truck with 2 pressure washers and a settling area may be, required by the erosion and sediment control program administrator. GENERAL EROSION AND SEDIMENT CONTROL NOTES ES -1: Unless otherwise Indicated, all vegetative and structural erosion and sediment control Practices will be, constructed and maintained according to minimum standards and specifications of thin Virginia Erosion and Sediment Control Handbook and Virginia Regullations VR 625 -02 -00 Erosion and Sediment Control Regulations. ES -2: The plan approving authority must be notified one week prior to the pro- construction conference, one week prior to the commencement of land disturbing activity, and one week prior to the final inspection. ES -3: All erosion and sediment control measures are to be placed prior to or as the first step in clearing. ES-4: A copy of the approved erosion and sediment control plan shall be maintained on the site at all times. ES -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. ES -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. ES -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. ES -8: During dewatering operations, water will be pumped into an approved filtering device. ES -3: The contractor shall inspect all erosion contirol 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. Existing vegetation: mostly wooded No off -site borrow or waste areas will be required for this plan. 4 UK G NUN- l,GFerUKia I LV YvL, nG1n LGlvu I n. -1. v 011Ir r'LNIV 1 IINU )1JF- ICUULC WEIR HEIGHT: 2.0' PIPE® POSITVE SLOPE WEIR HEIGHT: 2.0' NUM SIZE SPECIES TOP OF BERM: 629.0 TOP OF BERM: 659.0 TOP OF WEIR: 628.0' 3 15" SPICEBUSH TOP OF WEIR: 658.0' BOTTOM OF WEIR: 626' 21x21' 1 1.5" cal RED MAPLE BOTTOM OF WEIR: 656' 20x15' LOW POINT: 622' 13x13' LOW POINT: 652' 20x7' BERM WIDTH: 2.5' 3 18" CREEPING JUNIPER BERM WIDTH: 2.5' TEMPORARY PERMANENT Sediment Trap To Stormwater BMP Construction Notes 1. All disturbed areas must be stabilized with pavement or a good stand of vegetation prior to the conversion of the trap to a stormwater BMP. 2. Accumulated sediment must be removed from the trap to a depth 1B below the stone weir (see detail), the interior slopes of the trap regraded to 3:1 or flatter, and the stone weir repaired if necessary. 3. De- watering Trench shall be installed in accordance with the attached Sediment Trap to BMP Plan and the De- watering Trench Detail . Prior to installation, the location and orientation of the trench shall be field determined by David Hirschman (Water Resources Manager) and the Contractor. 4. After installation of the de- watering trench, the bottom of the stormwater BMP will be covered with at least 2' of a 50/50 mixture of sand and topsoil, and then permanent seed & mulch applied. NOTE: BMP SILT BASIN RETROFIT IS NOT TO BE INSTALLED UNTIL 7HE SITE IS SUBSTANTIALLY STAILIZED ACCORDING TO THE E&S INSPECTOR AND WATER RESOURCES MANAGER. 2' MIN: 50% SAND, 30% TOPSOIL, 20% LEAF MULCH SAND : 0.02 0.04 ", ASTM C33 FINE) STONE TOP OF BERM WEIR SIDE SLOPES REGRADED TO 3: 1 (MAX) I' MIN. UNDERDRAIN GRAVEL \ AASHTO M43, 0.5-11 WRAPPED IN FILTER CLOTH REMOVE SILT & SEDIMENT AFTER FINAL STABILIZATION REPLACE WITH LOAM OR GRANULAR EARTH FILL PROFILE BMP SEDIMENT TRAP RETROFIT AFTER CONSTRUCTION) SOD TURF COVER 3: 1 CLEAN -OUT W /WA RPTIGHT I IAIn Cnnn A TAI Cn A 11 3: 1 TOPSOIL & SAND SAND: 0.02- 0.04" 2.0' ( ASTM C -33 FINE) MUST BE INSPECTED BY WATER RESOURCES MANAGER 6 EROSION CONTROL INSPECTOR) see note #2 below) 2.5' TOP OF BERM TOP OF WEIR 6" NON- PERFORATED PVC PIPE AT 1% 3: 1 4 _C rL-nl UMMI1 u • BIOFILTER CROSS SECTIONPVCPIPEAT1% (AASHTOvM43, 112 " -1 ") SLOPE (MIN) WRAPPED IN FILTER FABRIC STORMWATER /BMP NOTES 1. BMP is not to be constructed until the site is adequately stabilized, according to Water Resources Personnel (434- 296 - 5861). 2. The bio- filter soil mix must be the Luck Bio- filter Mix available from Luck Stone or a tested and approved equivalent. For addional information contact Water Resoruces Personnel (434 -296- 5861). 3. The sand /soil mix must be stabilized with sod along with the trees and /or shrubs listed on the plan. VICINITY MAP 04, 810 Z Q 01' 1 NORTONSVILL 9 0 BSO 0 P APISH PO Zsv o 9 663 SITE 664 r F Q' 90 Oq 671 C, VIS SHOP SCALE : 1" = 2000' Connors Ridge Erosion /Sediment Control Narrative May 27, 2003 (rev 6/25/031 PROJECT DESCRIPTION The protect consists of construction of a road for a small subdivision. This will require the disturbance of 2 acres. EXISTING SITE CONDITIONS The site is currently mostly wooded with an existing access road. ADJACENT PROPERTY State Route 664 is to the cost and other rural land surrounds the rest of the project (TMP 8 -34A, 8 -34D. 8 -34D. 8 -35D. 8 -36 9 6 -36A). OFFSITE AREAS No off -site areas will be disturbed. Earthwork balances on site according to road designer. SOILS 5g- 3elvoir Loam, 2 to 7 percent slopes; 368- Hayesvtlle Loam, 2 to 7 percent slopes; 3GC- Haysville Loam 7 to 15 percent slopes: and 3GD- Hayesvtlle Loam 15 to 25 percent slopes CRITICAL EROSION AREAS An intermittent stream runs through the property. EROSION AND SEDIMENT CONTROL McASURES Unless otherwise indicated, all vegetative and structural erosion and sediment control practices will be constructed and maintained according to minimum standards and specifications of the Virginia Erosion and Sediment Control Handbook (VESCH). STRUCTURAL PRACTICES 1. Construction Entrance- 3.02 A temporary Construction entrance will be provided upon field determination by the County and the contractor. 2. Temporary Sediment Trap - 3.13 A small ponding area, formed by construction an earthen embankment with a stone outlet across a drainage swale. 3. Silt Fence- 3.05 A temporary sediment barrier consisting of a synthetic filter fabric stretched across and attached to supporting posts and entrenched. 4. Temporary Diversion Dike - 3.03 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. 5. Outlet Protection - 3.18 Riprop channel and/or stilling basins below storm drain outlets. VEC,ETATIVE PRACTICES 1. Temporary Seeding - 3.31 Establisbment of temporary vegetative cover on disturbed areas by seeding with appropriate rapidly growing plants on sites that will not be brought to final grade for periods of 30 days to one year. German Millet at 60 lb. /ac.. Weeping Lovegross at 3 Ib. /ac., Korean LoEnodozo at 20 lb./ac. Temporary seeding shall be fertilized. Fertilizer shall be applied at a rate of 600 ibs /.wre of 10 -20 -10 according to the handbook. i be builder may save considerable funds by having the soil tested by VA TECH (kits are available at the extension office and the test costs $7.00). 2. Mulch - 3.35 Organic mulch shall be used In conjunction with seeding operations and shall be applied at the rate of 2 tons /acre. 3. Dust Control- 3.33 Dust control Measures shall be, utilized throughout this site wbon necessary. TyPFcal temporary measures include but are not limited to, Irrigation, temporary seeding barriers. These measures will aid in the prevention of harmful airborne substances as well the effects of wind erosion. MANAGEMENT STRATEGIES 1. Construction should be, sequenced so that grading operations can begin and end as quickly as possible. 2. Sediment trapping measures shall be Installed as a first step In grading and shall be seeded and mulched Immediately following Installation. 3. The Job superintendent shall be responsible for the Installation and maintenance of all erosion and sediment control practices. 4. Temporary seeding or other stabilization will follow immediately after grading. 5. Areas which are not to be disturbed will be clearly marked by flags, signs, etc. 6. After achieving adequate stabilization, the temporary EPYS controls will be cleaned out and converted to permanent stormwater management basins. PERMANENT STABILIZATION All aroas disturbed by construction will be stabilized with permanent seeding immediately following finish grading. Seeding will be done with Kentucky 31 Tall Fescue according to Std. $ Spec. 3.32 of The Virginia Erosion 9 Sediment Control Handbook. 5 -20 -10 fertilizer shall be applied at the rate of 1000 lb/ac and limb at 2 tons /ac. Permanently seeded areas shall be protected during establishment with straw mulch (2 tons /ac). STORMWATER MANAGEMENT This is a rural subdivision with negligible change in stormwater. MAINTENANCE In general, all erosion and sediment control measures will be checked doily and after each significant rainfall. The following items will be checked In particular: 1) Should sediment basins and /or silt traps be required, they will be cleaned and maintained according to the Virginia Erosion #_ Sediment Control Handbook. 2) All gravel outlets will be chocked regularly for sediment buildup that will prevent drainage. If the gravel is clogged by sediment, it shall be removed and cleaned or replaced. 3) All silt fence barriers will be, checked regularly for undermining or deterioration of the fabric and repaired as required. Sediment shall be removed when the level of sediment deposition reaches half way to the top of the barrier. 4) All seeded areas will be checked regularly to see that a good stand is maintained. Areas should be fertilized and reseeded as needed. MS -1 Stabilization of Denuded Areas and Soil Stockpiles Permanent or temporary soil stabilization must be applied to denuded areas within seven days afte- final grade is roacbed 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 remein dormant (undisturbed) for longer than 30 days. Permanent stabilization shall be oppli5d to areas that are to be left dormant for more than one year. Soil stabilization refers to measure which protect soil from the erosive forces of raindrop Impo,t and flowing water. Applicable practices include vegetative establishment, mulching, and the early application of gravel base on areas to be, paved. Soil stabilization measures should be selected to be appropriate for the time of year, site conditions and estimated duration of use. MS -4 Timing and stabilization of Sediment Trapping Measures Sedlnent basins and traps, perimeter dikes, sediment barriers and other measures intended to trap sediment shall be constructed as a first step to any land - disturbing activity and shall be made functional before up -slope land disturbance takes place. MS- 5 Stabilization Measures Statllization measures sball be applied to earthen structures such as dams, dikes and diversions Immediately after Installation. MS- 17 Vehicle Access Wbero construction vehicle access routes Intersect paved public roads, provisions shall be made to minimize the transport of sediment by (vehicular) tracking onto the paved surface. Wbere sediment Is transported onto a public road surface, the road shall be cleaned thoroughly at the end of each day. Sediment shall be removed from the roads 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 provisio shall apply to Indiv.dual subdivision lots as well as to large lad di Curbing at/ ngi s MS -i8 Disposition of Temporary Measures All temporary erosion and sediment can trol m sur s s all b re d wit In 30 days after final site stabilization or after the temp r r eas r no r nee d, u nless othol•wiso authorized by the local program odmin strotor% Trapped sediment and the disturbed soil areas resulting from the disposition of tOr hfgsurns shall be permanently stabilized to prevent further erosl f` -a 6 mot/ / Y APPROVED Albernmie County Engineering & Public Works Date: Oct ~ 1z -b , r 0 GRAPHIC 13*1_ MAS UNCASTER, JR. 0 50 100 150 ' n CERT. NO. 16242 a S mc TM a1 mr, w m a Q TM C72C CHECKED BY DATE L p C) rnN a p o U U vu 1: 1 Conveyance PROJECT - p a Channel Q)I tv L W LoMMaJ 0 J L 3 c0 W X D M M PLAN m M Q E Z EL RiPrap Hump yPaG Important) Cl) z li 0 4-) i -- IVeeggetation 00 U) Original Grade z Trench cut out for 0 installation of rlprop J IL PROFILE ENERGY DISSIPATOP- DETAIL Additional Notes 1) Contractor to have all stockpile aroas Pre- approved by the County. 2) All culvert work must be done in the dry 3) Stormwater runoff from all disturbed areas shall be directed into adequate sediment trapping devices, as determined by VESCL, until the site is deemed stabilized by the program administrator. 4) All entrances except for the approved construction entrance shall be blocked in such a manner as to not allow access to the site. 5) Temporary construction entrance is required for this site. Standard E! Specification 3.02 is adequate due to the lack of available water to the site. Should the temporary construction entrance not be maintained properly or an excessive amount of soil found tracked onto the public roadway, then a paved construction entrance, water tanker truck with 2 pressure washers and a settling area may be, required by the erosion and sediment control program administrator. GENERAL EROSION AND SEDIMENT CONTROL NOTES ES -1: Unless otherwise Indicated, all vegetative and structural erosion and sediment control Practices will be, constructed and maintained according to minimum standards and specifications of thin Virginia Erosion and Sediment Control Handbook and Virginia Regullations VR 625 -02 -00 Erosion and Sediment Control Regulations. ES -2: The plan approving authority must be notified one week prior to the pro- construction conference, one week prior to the commencement of land disturbing activity, and one week prior to the final inspection. ES -3: All erosion and sediment control measures are to be placed prior to or as the first step in clearing. ES-4: A copy of the approved erosion and sediment control plan shall be maintained on the site at all times. ES -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. ES -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. ES -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. ES -8: During dewatering operations, water will be pumped into an approved filtering device. ES -3: The contractor shall inspect all erosion contirol 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. Existing vegetation: mostly wooded No off -site borrow or waste areas will be required for this plan. 4 UK G NUN- l,GFerUKia I LV YvL, nG1n LGlvu I n. -1. v 011Ir r'LNIV 1 IINU )1JF- ICUULC WEIR HEIGHT: 2.0' PIPE® POSITVE SLOPE WEIR HEIGHT: 2.0' NUM SIZE SPECIES TOP OF BERM: 629.0 TOP OF BERM: 659.0 TOP OF WEIR: 628.0' 3 15" SPICEBUSH TOP OF WEIR: 658.0' BOTTOM OF WEIR: 626' 21x21' 1 1.5" cal RED MAPLE BOTTOM OF WEIR: 656' 20x15' LOW POINT: 622' 13x13' LOW POINT: 652' 20x7' BERM WIDTH: 2.5' 3 18" CREEPING JUNIPER BERM WIDTH: 2.5' TEMPORARY PERMANENT Sediment Trap To Stormwater BMP Construction Notes 1. All disturbed areas must be stabilized with pavement or a good stand of vegetation prior to the conversion of the trap to a stormwater BMP. 2. Accumulated sediment must be removed from the trap to a depth 1B below the stone weir (see detail), the interior slopes of the trap regraded to 3:1 or flatter, and the stone weir repaired if necessary. 3. De- watering Trench shall be installed in accordance with the attached Sediment Trap to BMP Plan and the De- watering Trench Detail . Prior to installation, the location and orientation of the trench shall be field determined by David Hirschman (Water Resources Manager) and the Contractor. 4. After installation of the de- watering trench, the bottom of the stormwater BMP will be covered with at least 2' of a 50/50 mixture of sand and topsoil, and then permanent seed & mulch applied. NOTE: BMP SILT BASIN RETROFIT IS NOT TO BE INSTALLED UNTIL 7HE SITE IS SUBSTANTIALLY STAILIZED ACCORDING TO THE E&S INSPECTOR AND WATER RESOURCES MANAGER. 2' MIN: 50% SAND, 30% TOPSOIL, 20% LEAF MULCH SAND : 0.02 0.04 ", ASTM C33 FINE) STONE TOP OF BERM WEIR SIDE SLOPES REGRADED TO 3: 1 (MAX) I' MIN. UNDERDRAIN GRAVEL \ AASHTO M43, 0.5-11 WRAPPED IN FILTER CLOTH REMOVE SILT & SEDIMENT AFTER FINAL STABILIZATION REPLACE WITH LOAM OR GRANULAR EARTH FILL PROFILE BMP SEDIMENT TRAP RETROFIT AFTER CONSTRUCTION) SOD TURF COVER 3: 1 CLEAN -OUT W /WA RPTIGHT I IAIn Cnnn A TAI Cn A 11 3: 1 TOPSOIL & SAND SAND: 0.02- 0.04" 2.0' ( ASTM C -33 FINE) MUST BE INSPECTED BY WATER RESOURCES MANAGER 6 EROSION CONTROL INSPECTOR) see note #2 below) 2.5' TOP OF BERM TOP OF WEIR 6" NON- PERFORATED PVC PIPE AT 1% 3: 1 4 _C rL-nl UMMI1 u • BIOFILTER CROSS SECTIONPVCPIPEAT1% (AASHTOvM43, 112 " -1 ") SLOPE (MIN) WRAPPED IN FILTER FABRIC STORMWATER /BMP NOTES 1. BMP is not to be constructed until the site is adequately stabilized, according to Water Resources Personnel (434- 296 - 5861). 2. The bio- filter soil mix must be the Luck Bio- filter Mix available from Luck Stone or a tested and approved equivalent. For addional information contact Water Resoruces Personnel (434 -296- 5861). 3. The sand /soil mix must be stabilized with sod along with the trees and /or shrubs listed on the plan. VICINITY MAP 04, 810 Z Q 01' 1 NORTONSVILL 9 0 BSO 0 P APISH PO Zsvo 9 663 SITE 664 r F Q' 90 Oq 671 C, VIS SHOP SCALE : 1" = 2000' Connors Ridge Erosion /Sediment Control Narrative May 27, 2003 (rev 6/25/031 PROJECT DESCRIPTION The protect consists of construction of a road for a small subdivision. This will require the disturbance of 2 acres. EXISTING SITE CONDITIONS The site is currently mostly wooded with an existing access road. ADJACENT PROPERTY State Route 664 is to the cost and other rural land surrounds the rest of the project (TMP 8 -34A, 8 -34D. 8 -34D. 8 -35D. 8 -36 9 6 -36A). OFFSITE AREAS No off -site areas will be disturbed. Earthwork balances on site according to road designer. SOILS 5g- 3elvoir Loam, 2 to 7 percent slopes; 368- Hayesvtlle Loam, 2 to 7 percent slopes; 3GC- Haysville Loam 7 to 15 percent slopes: and 3GD- Hayesvtlle Loam 15 to 25 percent slopes CRITICAL EROSION AREAS An intermittent stream runs through the property. EROSION AND SEDIMENT CONTROL McASURES Unless otherwise indicated, all vegetative and structural erosion and sediment control practices will be constructed and maintained according to minimum standards and specifications of the Virginia Erosion and Sediment Control Handbook (VESCH). STRUCTURAL PRACTICES 1. Construction Entrance- 3.02 A temporary Construction entrance will be provided upon field determination by the County and the contractor. 2. Temporary Sediment Trap - 3.13 A small ponding area, formed by construction an earthen embankment with a stone outlet across a drainage swale. 3. Silt Fence- 3.05 A temporary sediment barrier consisting of a synthetic filter fabric stretched across and attached to supporting posts and entrenched. 4. Temporary Diversion Dike - 3.03 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. 5. Outlet Protection - 3.18 Riprop channel and/or stilling basins below storm drain outlets. VEC,ETATIVE PRACTICES 1. Temporary Seeding - 3.31 Establisbment of temporary vegetative cover on disturbed areas by seeding with appropriate rapidly growing plants on sites that will not be brought to final grade for periods of 30 days to one year. German Millet at 60 lb. /ac.. Weeping Lovegross at 3 Ib. /ac., Korean LoEnodozo at 20 lb./ac. Temporary seeding shall be fertilized. Fertilizer shall be applied at a rate of 600 ibs /.wre of 10 -20 -10 according to the handbook. i be builder may save considerable funds by having the soil tested by VA TECH (kits are available at the extension office and the test costs $7.00). 2. Mulch - 3.35 Organic mulch shall be used In conjunction with seeding operations and shall be applied at the rate of 2 tons /acre. 3. Dust Control- 3.33 Dust control Measures shall be, utilized throughout this site wbon necessary. TyPFcal temporary measures include but are not limited to, Irrigation, temporary seeding barriers. These measures will aid in the prevention of harmful airborne substances as well the effects of wind erosion. MANAGEMENT STRATEGIES 1. Construction should be, sequenced so that grading operations can begin and end as quickly as possible. 2. Sediment trapping measures shall be Installed as a first step In grading and shall be seeded and mulched Immediately following Installation. 3. The Job superintendent shall be responsible for the Installation and maintenance of all erosion and sediment control practices. 4. Temporary seeding or other stabilization will follow immediately after grading. 5. Areas which are not to be disturbed will be clearly marked by flags, signs, etc. 6. After achieving adequate stabilization, the temporary EPYS controls will be cleaned out and converted to permanent stormwater management basins. PERMANENT STABILIZATION All aroas disturbed by construction will be stabilized with permanent seeding immediately following finish grading. Seeding will be done with Kentucky 31 Tall Fescue according to Std. $ Spec. 3.32 of The Virginia Erosion 9 Sediment Control Handbook. 5 -20 -10 fertilizer shall be applied at the rate of 1000 lb/ac and limb at 2 tons /ac. Permanently seeded areas shall be protected during establishment with straw mulch (2 tons /ac). STORMWATER MANAGEMENT This is a rural subdivision with negligible change in stormwater. MAINTENANCE In general, all erosion and sediment control measures will be checked doily and after each significant rainfall. The following items will be checked In particular: 1) Should sediment basins and /or silt traps be required, they will be cleaned and maintained according to the Virginia Erosion #_ Sediment Control Handbook. 2) All gravel outlets will be chocked regularly for sediment buildup that will prevent drainage. If the gravel is clogged by sediment, it shall be removed and cleaned or replaced. 3) All silt fence barriers will be, checked regularly for undermining or deterioration of the fabric and repaired as required. Sediment shall be removed when the level of sediment deposition reaches half way to the top of the barrier. 4) All seeded areas will be checked regularly to see that a good stand is maintained. Areas should be fertilized and reseeded as needed. MS -1 Stabilization of Denuded Areas and Soil Stockpiles Permanent or temporary soil stabilization must be applied to denuded areas within seven days afte- final grade is roacbed 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 remein dormant (undisturbed) for longer than 30 days. Permanent stabilization shall be oppli5d to areas that are to be left dormant for more than one year. Soil stabilization refers to measure which protect soil from the erosive forces of raindrop Impo,t and flowing water. Applicable practices include vegetative establishment, mulching, and the early application of gravel base on areas to be, paved. Soil stabilization measures should be selected to be appropriate for the time of year, site conditions and estimated duration of use. MS -4 Timing and stabilization of Sediment Trapping Measures Sedlnent basins and traps, perimeter dikes, sediment barriers and other measures intended to trap sediment shall be constructed as a first step to any land - disturbing activity and shall be made functional before up -slope land disturbance takes place. MS- 5 Stabilization Measures Statllization measures sball be applied to earthen structures such as dams, dikes and diversions Immediately after Installation. MS- 17 Vehicle Access Wbero construction vehicle access routes Intersect paved public roads, provisions shall be made to minimize the transport of sediment by (vehicular) tracking onto the paved surface. Wbere sediment Is transported onto a public road surface, the road shall be cleaned thoroughly at the end of each day. Sediment shall be removed from the roads 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 provisio shall apply to Indiv.dual subdivision lots as well as to large lad di Curbing at/ ngi s MS -i8 Disposition of Temporary Measures All temporary erosion and sediment can trol m sur s s all b re d wit In 30 days after final site stabilization or after the temp r r eas r no r nee d, u nless othol•wiso authorized by the local program odmin strotor% Trapped sediment and the disturbed soil areas resulting from the disposition of tOr hfgsurns shall be permanently stabilized to prevent further erosl f` -a 6 mot/ / Y APPROVED Albernmie County Engineering & Public Works Date: Oct ~ 1z -b , r 0 GRAPHIC 13*1_ MAS UNCASTER, JR. 0 50 100 150 ' n CERT. NO. 16242 a S DESIGNED BY DATE TM a1 mr, w m a Q TM 0m CHECKED BY DATE LQ C) rnN a onnors Ridge wJJH CD U 0J 1: 1 cca PROJECT - o Ai 41 a 00 0 W LoMMaJ 0 J L DESIGNED BY DATE TM C w DATE TM f0 CHECKED BY DATE FILE t-i onnors Ridge SCALE 1 " =50 0- 1: 1 Q PROJECT - 0- Ai 41 H Z 00 2: o W c-D J L r W CD D M U m M Q E Z EL L Cl) z 0 0 4-) C[-- O 00 U) m z w 0 J IL L 4J D a:2: C U E: 0 W x U 0 m Q C Z 0 M 17_1 0 w 0 In aNU CD s rm U3 CN Eo Cn U O LM m Cw LU M Cc 000m MM FF-FT, DESIGNED BY DATE TM C DRAWN BY DATE TM f0 CHECKED BY DATE FILE t-i onnors Ridge SCALE 1 " =50 0- 1: 1 Q PROJECT - 0- Ai 41 H Z M 2: o W c-D J L C- W CD D U M Q E EL L Cl) z 0 4-) C[-- O 00 U) z w 0 J IL L 4J D a:2: C U E: 0 W x U m Q C Q 0 17_1 0 LLJ DESIGNED BY DATE TM 5/26/03 DRAWN BY DATE TM 5/26/03 CHECKED BY DATE FILE EDIT onnors Ridge SCALE 1 " =50 DRAWING 1: 1 PLOT PROJECT - tfASI'd J Ai 41F U _-A 1 asrkl- r' 'o