HomeMy WebLinkAboutWPO201400021 Plan - Approved 2014-03-114
MASS GRADING AND
EROSION * SEDIMENT CONTROL PLAN FOR
RIVER51DE VILLAGE
TAX MAP 78, PARCEL 58
RIVANNA DISTRICT, ALE3EMARLE COUNTY, VIRGINIA
VICINITY MAP SCALE: 1 "- 1,000
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IMAGE PROVIDED BY GOGGLE MAPS
SHEET INDEX
5HEET C I - COVER 5HEET
5HEET C2 - ER05ION * 5EDIMENT CONTROL NOTE5
5HEET C3 - EROSION * 5EDIMENT CONTROL PLAN
SHEET C4 - ER051ON * SEDIMENT CONTROL DETAILS
SHEET C5 - ER051ON * 5EDIMENT CONTROL DETAIL5
GENERAL CONSTRUCTION NOTES
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 accordance with the approved erosion control plan and shall be installed prior to any
clearing, grading or other construction.
4. All slopes and disturbed areas are to be fertilized, seeded and mulched.
5. The maximum allowable slope is 2:1 (horizontal: vertical). Where reasonably obtainable, lesser slopes of 3:1 or better are to be achieved.
6. Paved, rip -rap or stabilization mat lined ditch may be required when in the opinion of the County Engineer, or designee, it is deemed necessary
in order to stabilize a drainage channel.
7. All traffic control signs shall conform with the Virginia Manual for Uniform Traffic Control Devices.
8. Unless otherwise noted all concrete pipe shall be reinforced concrete pipe - Class III.
9. All excavation for underground pipe installation must comply with OSHA Standards for the Construction Industry (29 CFR Part 1926).
GENERAL CONSTRUCTION NOTES FOR
EROSION AND SEDIMENT CONTROL PLANS
1. The plan approving authority must be notified one week prior to the pre- construction conference, one week prior to the commencement of land
disturbing activity, and one week prior to the final inspection.
2. All erosion and sediment control measures will be constructed and maintained according to minimum standards and specifications of the Virginia
Erosion and Sediment Control Handbook and Virginia Regulations VR 625 -02 -00 Erosion and Sediment Control Regulations.
3. All erosion and sediment control measures are to be placed prior to or as the first step in clearing.
4. A copy of the approved erosion and sediment control plan shall be maintained on the site at all times.
5. Prior to commencing land disturbing activities in areas other than indicated on these plans (including, but not limited to, off -site borrow or
waste areas), the contractor shall submit a supplementary erosion control plan to the owner for review and approval by the plan approving
authority.
6. The contractor is responsible for installation of any additional erosion control measures necessary to prevent erosion and sedimentation as
determined by the plan approving authority.
7. All disturbed areas are to drain to approved sedinie t 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 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 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 denLided areas within nine (9) months after the date the land disturbing activity commenced.
(Water Protection Ordinance section 17 -207B)
PLAN NOTES:
Source of Topography: Mopping by Louisa Aerial Surveys.
APPROVED
Source of Boundary: Roger W. Ray and Associates t#le�l�e�1���F3 {County
Development Department
Horizontal Control: NAD 1983 VA South Zone _=
Vertical Control: NAVD 1988 Fite
Topography has been visually confirmed by Justin Shimp, P.E. January
2014.
FILE COPS
This copy of the approved plan is
reserved for the official files of
Albemarle County. Please do not
remove this plan from the file.
lt7N
O �
U J . TIN M. SHIMP
"t No 4 183
O��SSIONAL ���
C
S 1 1
# A,
IMAGE PROVIDED BY GOGGLE MAPS
SHEET INDEX
5HEET C I - COVER 5HEET
5HEET C2 - ER05ION * 5EDIMENT CONTROL NOTE5
5HEET C3 - EROSION * 5EDIMENT CONTROL PLAN
SHEET C4 - ER051ON * SEDIMENT CONTROL DETAILS
SHEET C5 - ER051ON * 5EDIMENT CONTROL DETAIL5
GENERAL CONSTRUCTION NOTES
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 accordance with the approved erosion control plan and shall be installed prior to any
clearing, grading or other construction.
4. All slopes and disturbed areas are to be fertilized, seeded and mulched.
5. The maximum allowable slope is 2:1 (horizontal: vertical). Where reasonably obtainable, lesser slopes of 3:1 or better are to be achieved.
6. Paved, rip -rap or stabilization mat lined ditch may be required when in the opinion of the County Engineer, or designee, it is deemed necessary
in order to stabilize a drainage channel.
7. All traffic control signs shall conform with the Virginia Manual for Uniform Traffic Control Devices.
8. Unless otherwise noted all concrete pipe shall be reinforced concrete pipe - Class III.
9. All excavation for underground pipe installation must comply with OSHA Standards for the Construction Industry (29 CFR Part 1926).
GENERAL CONSTRUCTION NOTES FOR
EROSION AND SEDIMENT CONTROL PLANS
1. The plan approving authority must be notified one week prior to the pre- construction conference, one week prior to the commencement of land
disturbing activity, and one week prior to the final inspection.
2. All erosion and sediment control measures will be constructed and maintained according to minimum standards and specifications of the Virginia
Erosion and Sediment Control Handbook and Virginia Regulations VR 625 -02 -00 Erosion and Sediment Control Regulations.
3. All erosion and sediment control measures are to be placed prior to or as the first step in clearing.
4. A copy of the approved erosion and sediment control plan shall be maintained on the site at all times.
5. Prior to commencing land disturbing activities in areas other than indicated on these plans (including, but not limited to, off -site borrow or
waste areas), the contractor shall submit a supplementary erosion control plan to the owner for review and approval by the plan approving
authority.
6. The contractor is responsible for installation of any additional erosion control measures necessary to prevent erosion and sedimentation as
determined by the plan approving authority.
7. All disturbed areas are to drain to approved sedinie t 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 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 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 denLided areas within nine (9) months after the date the land disturbing activity commenced.
(Water Protection Ordinance section 17 -207B)
PLAN NOTES:
Source of Topography: Mopping by Louisa Aerial Surveys.
APPROVED
Source of Boundary: Roger W. Ray and Associates t#le�l�e�1���F3 {County
Development Department
Horizontal Control: NAD 1983 VA South Zone _=
Vertical Control: NAVD 1988 Fite
Topography has been visually confirmed by Justin Shimp, P.E. January
2014.
FILE COPS
This copy of the approved plan is
reserved for the official files of
Albemarle County. Please do not
remove this plan from the file.
lt7N
O �
U J . TIN M. SHIMP
"t No 4 183
O��SSIONAL ���
GENERAL CONSTRUCTION NOTES
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 accordance with the approved erosion control plan and shall be installed prior to any
clearing, grading or other construction.
4. All slopes and disturbed areas are to be fertilized, seeded and mulched.
5. The maximum allowable slope is 2:1 (horizontal: vertical). Where reasonably obtainable, lesser slopes of 3:1 or better are to be achieved.
6. Paved, rip -rap or stabilization mat lined ditch may be required when in the opinion of the County Engineer, or designee, it is deemed necessary
in order to stabilize a drainage channel.
7. All traffic control signs shall conform with the Virginia Manual for Uniform Traffic Control Devices.
8. Unless otherwise noted all concrete pipe shall be reinforced concrete pipe - Class III.
9. All excavation for underground pipe installation must comply with OSHA Standards for the Construction Industry (29 CFR Part 1926).
GENERAL CONSTRUCTION NOTES FOR
EROSION AND SEDIMENT CONTROL PLANS
1. The plan approving authority must be notified one week prior to the pre- construction conference, one week prior to the commencement of land
disturbing activity, and one week prior to the final inspection.
2. All erosion and sediment control measures will be constructed and maintained according to minimum standards and specifications of the Virginia
Erosion and Sediment Control Handbook and Virginia Regulations VR 625 -02 -00 Erosion and Sediment Control Regulations.
3. All erosion and sediment control measures are to be placed prior to or as the first step in clearing.
4. A copy of the approved erosion and sediment control plan shall be maintained on the site at all times.
5. Prior to commencing land disturbing activities in areas other than indicated on these plans (including, but not limited to, off -site borrow or
waste areas), the contractor shall submit a supplementary erosion control plan to the owner for review and approval by the plan approving
authority.
6. The contractor is responsible for installation of any additional erosion control measures necessary to prevent erosion and sedimentation as
determined by the plan approving authority.
7. All disturbed areas are to drain to approved sedinie t 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 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 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 denLided areas within nine (9) months after the date the land disturbing activity commenced.
(Water Protection Ordinance section 17 -207B)
PLAN NOTES:
Source of Topography: Mopping by Louisa Aerial Surveys.
APPROVED
Source of Boundary: Roger W. Ray and Associates t#le�l�e�1���F3 {County
Development Department
Horizontal Control: NAD 1983 VA South Zone _=
Vertical Control: NAVD 1988 Fite
Topography has been visually confirmed by Justin Shimp, P.E. January
2014.
FILE COPS
This copy of the approved plan is
reserved for the official files of
Albemarle County. Please do not
remove this plan from the file.
lt7N
O �
U J . TIN M. SHIMP
"t No 4 183
O��SSIONAL ���
PROJECT DESCRIPTION, GENERAL NOTES, EROSION &SEDIMENT CONTROL NOTES, AND SEQUENCE OF CONSTRUCTION
PROJECT DESCRIPTION
THIS SITE IS AN EXISTING WOODLAND, WITHIN THE COUNTY OF ALBEMARLE,
ZONED NMD, THE PROPOSAL IS THE CONSTRUCTION OF NEW SINGLE- AND
MULTI - FAMILY RESIDENCES, WITH ASSOCIATED ROADS AND UTILITIES.
THE TOTAL AREA OF DISTURBANCE IS 11.64 ACRES
THE PROJECT INVOLVES THE FOLLOWING WORK ACTIVITIES:
1. THE CONTRACTOR SHALL OBTAIN ALL LOCAL AND STATE EROSION AND
SEDIMENT PERMITTING REQUIREMENTS AND MAINTAIN ALL EROSION AND
SEDIMENT CONTROLS IN ACCORDANCE WITH THE PERMIT REQUIREMENTS.
2. INSTALLATION OF TEMPORARY AND PERMANENT EROSION AND SEDIMENT
CONTROL MEASURES AS SHOWN ON THE PLAN AND DETAILS.
3. THIS PLAN IS FOR CLEARING AND MASS GRADING OF THE SITE AS PERMITTED
WITH INITIAL SITEPLAN APPROVAL. NO PERMANENT IMPERVIOUS SURFACES
MAY BE CONSTRUCTED IN THIS PHASE OF THE PROJECT.
EXISTING SITE CONDITIONS
THE SITE IS CURRENTLY COVERED WITH TREES.
ADJACENT PROPERTIES
THIS PROPERTY IS BORDERED TO THE WEST BY RIVANNA RIVER, TO THE NORTH
BY ELKS LODGE AND SINGLE - FAMILY RESIDENCES, TO THE EAST BY ROUTE 2-
AND TO THE SOUTH BY PROFESSIONAL OFFICES AND SOME FOREST.
OFF -SITE AREAS
NO OFF -SITE (OUTSIDE OF PROJECT LIMITS) LAND DISTURBING ACTIVITIES WILL
TAKE PLACE IN THE COURSE OF THIS PROJECT.
SOILS
REFER TO SHEET C3 FOR LOCATIONS AND DESCRIPTIONS OF KNOWN SOIL TYPES
CRITICAL EROSION AREAS
THERE ARE NO AREAS ON THIS SITE WITH CRITICAL EROSION CONCERNS.
PERMANENT STABILIZATION
THOSE AREAS OF THE SITE WHICH WILL NOT BE ULTIMATELY PAVED WILL HAVE
PERMANENT SEEDING ESTABLISHED, AS WELL AS TREES AND SHRUBS.
STORM WATER MANAGEMENT:
STORM WATER MANAGEMENT IS ADDRESSED BY A SERIES OF BIOFILTERS AND
INFILTRATION TANKS.
MS -19 COMPLIANCE:
THIS PROPERTY IS LOCATED ADJACENT TO THE RIVANNA RIVER AND COMPRISES
LESS THAN 1% OF THE CONTRIBUTING AREA AT THE POINT OF DISCHARGE,
WHICH IS DIRECTLY ON THE FLOODPLAIN. THERE ARE NO OFFSITE PROPERTIES
BETWEEN THE DEVELOPMENT AND THE RIVER.
GENERAL NOTES
1. ALL ELEVATIONS INDICATED REFER TO SITE DATUM OF NAVD88.
2. 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.
3. 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.
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. CONTRACTOR SHALL IMMEDIATELY REPORT ANY DISCREPANCIES BETWEEN
EXISTING CONDITIONS AND CONTRACT DOCUMENTS TO THE OWNER AND
ENGINEER.
8. CONTRACTOR SHALL SUBMIT FOR THE APPROVAL OF THE OWNER
SUBMITTALS OF ALL SPECIFIED MATERIALS LISTED IN THE PLANS, TO
INCLUDE SHOP DRAWINGS, MANUFACTURER'S SPECIFICATIONS AND
LABORATORY REPORTS. THE OWNER'S APPROVAL OF SUBMITTALS WILL BE
GENERAL AND WILL NOT RELIEVE THE THE CONTRACTOR FROM THE
RESPONSIBILITY OF ADHERENCE TO THE CONTRACT AND FOR ANY ERROR
THAT MAY EXIST.
EROSION & SEDIMENT 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. CONSTRUCTION ROAD STABILIZATION: TEMPORARY STABILIZATION WITH
STONE OF ACCESS ROADS, SUBDIVISION STREETS, PARKING AREAS,
AND OTHER TRAFFIC AREAS IMMEDIATELY AFTER GRADING TO REDUCE
EROSION CAUSED BY VEHICLES DURING WET WEATHER, AND TO
PREVENT HAVING TO REGRADE PERMANENT ROADBEDS BETWEEN
INITIAL GRADING AND FINAL STABILIZATION, STD. AND SPEC. 3.03.
4, 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.
5. STORM DRAIN INLET PROTECTION: THE INSTALLATION OF VARIOUS
KINDS OF SEDIMENT TRAPPING MEASURES AROUND DROP INLETS OR
CURB INLET STRUCTURES PRIOR TO PERMANENT STABILIZATION OF
THE DISTURBED AREA; LIMITED TO DRAINAGE AREAS NOT EXCEEDING
ONE ACRE, AND NOT INTENDED TO CONTROL LARGE, CONCENTRATED
STORMWATER FLOWS. STD. AND SPEC. 3.07.
6. TEMPORARY DIVERSION DIKE: A RIDGE OF COMPACTED SOIL
CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA
WHICH DIVERTS OFF -SITE RUNOFF AWAY FROM, UNPROTECTED SLOPES
AND TO A STABILIZED OUTLET, OR TO DIVERT SEDIMENT -LADEN
RUNOFF TO A SEDIMENT TRAPPING STRUCTURE. MAXIMUM EFFECTIVE
LIFE IS 18 MONTHS. STD. AND SPEC, 3.09.
7. DIVERSION: A PERMANENT CHANNEL WITH A RIDGE ON THE LOWER
SIDE CONSTRUCTED ACROSS A SLOPE TO REDUCE SLOPE LENGTH AND
INTERCEPT AND DIVERT STORMWATER RUNOFF TO A STABILIZED
OUTLET AT NON- EROSIVE VELOCITIES. STD. AND SPEC. 3.12,
8. TEMPORARY SEDIMENT BASIN: A TEMPORARY BARRIER OR DAM WITH
CONTROLLED STORMWATER RELEASE STRUCTURE WHICH IS FORMED BY
CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACCROSS A
DRAINAGEWAY, IT IS USED TO DETAIN SEDIMENT -LADEN RUNOFF FROM
DRAINAGE AREAS 3 ACRES OR GREATER FOR ENOUGH TIME TO ALLOW
MOST OF THE SUSPENDED SOLIDS TO SETTLE OUT. IT CAN BE
CONSTRUCTED ONLY WHERE THERE IS SUFFICIENT SPACE AND
APPROPRIATE TOPOGRAPHY. MAXIMUM EFFECTIVE LIFE IS 18 MONTHS
UNLESS DESIGNED AS A PERMANENT POND BY A QUALIFIED
PROFESSIONAL. STD. AND SPEC. 3.14.
9. OUTLET PROTECTION: THE INSTALLATION OF RIPRAP CHANNEL
SECTIONS AND /OR STILLING BASINS BELOW STORM DRAIN OUTLETS TO
REDUCE EROSION AND UNDER - CUTTING FROM SCOURING AT OUTLETS
AND TO REDUCE FLOW VELOCITIES BEFORE STORMWATER ENTERS
RECEIVING CHANNELS BELOW THESE OUTLETS. STD. AND SPEC. 3.18.
10. TEMPORARY SEEDING: TEMPORARY SEEDING SHALL BE APPLIED TO
ALL DENUDED AREAS WITHIN SEVEN (7) DAYS TO DENUDED AREAS
THAT MAY OR MAY NOT BE AT FINAL GRADE BUT WILL REMAIN
DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. TEMPORARY
SEEDING SHALL BE APPLIED IN CONFORMANCE WITH STD. AND SPEC.
3.31.
11. PERMANENT SEEDING: ALL DITCHES AND ADJACENT AREAS WITHIN
15 FT OF THE EDGE OF THE DITCHES SHALL BE SEEDED IN
CONFORMANCE WITH STD. AND SPEC. 3.32. 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.
12, 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.
13. 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.
MANAGEMENT STRATEGY AND SEQUENCE OF CONSTRUCTION
THE FOLLOWING ARE THE PROPOSED MANAGEMENT STRATEGIES AND DETAILED
SEQUENCE OF CONSTRUCTION:
PHASE 1
1. INSTALL CONSTRUCTION ENTRANCE.
INSTALL SILT FENCE AND TREE PROTECTION FENCE AT THE LOCATION SHOWN
ON THE EROSION & SEDIMENT CONTROL PLAN.
4. CONSTRUCT SEDIMENT BASINS AND DIVERSIONS.
5. INSTALL SAFETY FENCE AS SHOWN TO PREVENT PEDESTRIANS FROM
ACCESSING THE SEDIMENT BASINS.
6. CONTACT THE ENGINEER AND ALBEMARLE COUNTY FOR INSPECTION AND
APPROVAL OF ALL E &S CONTROL MEASURES.
PHASE 2
1. UPON APPROVAL OF E &S CONTROL MEASURES, BEGIN CLEARING AND
GRADING OF THE SITE. GRADE THE SITE ACCORDING TO THE MASS GRADING
PLAN.
2. MAINTAIN ALL E &S CONTROL MEASURES.
PHASE 3
1. STABILIZE ENTIRE SITE AS REQUIRED UNDER THE APPLICABLE STANDARD AND
SPECIFICATION.
2. ALL PERIMETER SILT FENCE AND STABILIZATION MEASURES SHALL REMAIN IN
PLACE UNTIL THE SITE IS DEEMED STABILIZED BY THE PLAN REVIEWING
AUTHORITY.
CONSTRUCTION MAINTENANCE
THE FOLLOWING CONSTRUCTION MAINTENANCE PRACTICES SHALL BE FOLLOWED
AT THE SITE.
1. ALL E &S CONTROL MEASURES WILL BE CHECKED DAILY AND AFTER EACH
SIGNIFICANT RAIN EVENT. ALL DEFICIENCIES IDENTIFIED DURING THESE
INSPECTIONS SHALL BE CORRECTED AS SOON AS PRACTICABLE.
2, THE SILT FENCE BARRIER SHALL BE REGULARLY CHECKED FOR UNDERMINING,
DETERIORATION OR SIGNIFICANT EROSION. SEDIMENT SHALL BE REMOVED
AFTER EACH STORM EVENT AND WHEN THE LEVEL OF SEDIMENT DEPOSITION
REACHES HALF THE HEIGHT OF THE CONTROL.
3. THE CONTRACTOR IS RESPONSIBLE FOR ADHERING TO ALL MAINTENANCE
REQUIREMENTS SET FORTH IN THE CURRENT EDITION OF THE VIRGINIA
SEDIMENT AND EROSION CONTROL MANUAL, OTHER APPLICABLE
COMMONWEALTH OF VIRGINIA REGULATIONS AND THE PROJECT
SPECIFICATIONS.
4. ALL SEEDED AREAS WILL BE REGULARLY CHECKED TO ENSURE THAT A GOOD
STAND OF GRASS IS MAINTAINED.
5. AREAS WITH RIP -RAP SHOULD BE REGULARLY INSPECTED TO DETERMINE IF
HIGH FLOWS HAVE DAMAGED THESE CONTROLS OR CAUSED EXCESSIVE
SEDIMENT DEPOSITION, ALL AREAS SHALL BE MAINTAINED IN ACCORDANCE
WITH THE REQUIREMENTS OF THIS E &S CONTROL PLAN.
ENVIRONMENTAL CONTROLS
1. CONTRACTOR SHALL PROVIDE AND MAINTAIN ALL ENVIRONMENTAL CONTROL
MEASURES SO AS TO COMPLY WITH LOCAL ORDINANCES, STATE AND FEDERAL
LAWS AND REGULATIONS APPLICABLE TO WATER POLLUTION IN WATERS OF
THE STATE AND IN INTERSTATE WATERS.
2. CONTRACTOR SHALL MINIMIZE THE POTENTIAL FOR AIR POLLUTION BY THE
USE OF EMISSION CONTROL EQUIPMENT ON CONTRACTOR OPERATED
EQUIPMENT, SHUT -DOWN OF MOTORIZED EQUIPMENT WHEN NOT IN USE, AND
ACTIVELY CONTROLLING DUST EMISSIONS THROUGHOUT THE PROJECT.'`
3. ANY WASTE DISCOVERED DURING THE PROJECT SHALL NOT BE MOVED WITH
OUT PRIOR AUTHORIZATION OF THE OWNER AND BE DIRECT - LOADED INTO
COVERED ROLL -OFF CONTAINERS FOR TEMPORARY STORAGE PRIOR TO
DISPOSAL IN A PERMITTED LANDFILL.
EROSION & SEDIMENT CONTROL PERMITTING
1. CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING ALL LOCAL AND STATE
EROSION AND SEDIMENT CONTROL PERMITS AND MAINTAINING ALL EROSION
AND SEDIMENT CONTROLS IN ACCORDANCE WITH THE PERMIT REQUIREMENTS.
CHESAPEAKE BAY PROTECTION AREA (CBPA) REQUIREMENTS:
1. THE DISTURBED AREA OF THIS SITE IS IN EXCESS OF 1.0 ACRES. A VSMP
GENERAL PERMIT IS REQUIRED FROM VA DCR. THE CONTRACTOR SHALL BE
RESPONSIBLE FOR PREPARATION OF THE PERMIT APPLICATION AND
ACCOMPANYING SWPPP.
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. STABLIZATION OF DENUDED AREAS:
Permanent or temporary soil stabilization shall be applied to bare areas
within seven days after final grade is reached on any portion of the site.
Temporary soil stabilization shall be applied within seven days to denuded
areas that may not be at final grade, but will remain dormant or
undisturbed for longer than 30 days. Permanent stabilization shall be
applied at areas that are to be left dormant for more than 1 year.
2. STABILIZATION OF SOIL STOCKPILES:
During construction of the project, soil stockpiles shall be stabilized or
protected with sediment trapping measures. The applicant is responsible for
temporary protection and permanent stabilization of all soil stockpiles on
site as well as soil intentionally transported from the project site.
3. PERMANENT VEGETATIVE COVER
A permanent vegetative cover shall be established on denuded areas not
otherwise permanently stabilized. Permanent vegetation shall not be
considered established until a ground cover is achieve that, in the opinion
of the county Inspector, is uniform and mature enough to survive to inhibit
erosion.
4. TIMING & STABILIZATION OF SILT TRAPPING MEASURES:
Sediment basins and traps, perimeter dikes, sediment barriers and other
measures intended to trap sediment shall be constructed as a first step in
any land disturbing activity and shall be made functional before upslope /U(5
land disturbance takes place.
5. STABILIZATION OF EARTHEN STRUCTURES:
Stabilization measures shall be applied to earthen structures such as
dams, dikes and diversions immediately after installation.
6. SEDIMENT TRAPS AND BASINS:
A sediment basin shall control surface runoff from disturbed areas that is
comprised of flow from drainage areas greater than or equal to three acres.
The sediment basin shall be designed and constructed to accommodate the
anticipated sediment loading for the land disturbing activity. The outfall
device or system device shall take into account the total drainage area
flowing through the disturbed area to be served by the basin.
7. CUT AND FILL SLOPES:
Cut and fill slopes shall be designed and constructed in a manner that
will minimize erosion. Slopes that are found to be eroding excessively
within one year of permanent stabilization shall be provided with additional
slope stabilizing measures until the problem is corrected.
& CONCENTRATED RUN -OFF DOWN CUT OR FILL SLOPES:
Concentrated runoff shall not flow down cut or fill slopes unless contained
within an adequate temporary or permanent channel, flume, or slope drain
structure.
9. WATER SEEPS FROM A SLOPE FACE:
Whenever water seeps from a slope face, adequate drainage or other
protection shall be provided.
10. STORM SEWER INLET PROTECTION:
All storm sewer - inlets that are made operable during construction shall
be protected so that sediment -laden water cannot enter the conveyance
system without first being filtered or otherwise treated to remove sediment.
11. STABILIZATION OF OUTLETS:
Before newly constructed stormwater conveyance channels are made
operational, adequate outlet protection and any required temporary or
permanent channel lining shall be installed in both the conveyance channel
and receiving channel.
12. WORK IN LIVE WATERCOURSES:
When work in a live watercourse is performed, precautions shall be taken
to minimize encroachment, control sediment transport and stabilize the work
area to the greatest extent possible during construction. Nonerodible
material shall be used for the construction of causeways and cofferdams.
Earthen fill may be used for these structures if armored by nonerodible
cover materials.
13. CROSSING A LIVE WATERCOURSE:
When a live watercourse must be crossed by construction vehicles more
than twice in any six month period, a temporary stream crossing
constructed of nonerodible materials shall be provided.
14. APPLICABLE REGULATIONS:
All applicable federal, state and local regulations pertaining to working in
or crossing live watercourses shall be met.
15. STABILIZATION OF BED AND BANKS
The bed and banks of a watercourse shall be stabilized immediately after
work in the watercourse is completed.
16. UNDERGROUND UTILITIES:
Underground utilities shall be installed in accordance with the following
standards in addition to other criteria:
a.No more than 500 linear feet of trench may be opened at one time.
b.Excavated material shall be placed on the uphill side of trenches
c.Effluent for dewotering operations shall be filtered or passed through
approved sediment trapping device, or both, and discharged in a manner
that does not adversely affect flowing streams or offsite property.
d.Material used for backfilling trenches shall be properly compacted in order
to minimize erosion and promote stabilization.
e. Restabilization shall be accomplished in accordance with these regulations.
f. Applicable safety regulations shall be complied with.
17. CONSTRUCTION ACCESS ROUTES:
Where construction vehicle access routes intersect paved public roads,
provisions shall be made to minimize the transport of sediment by vehicular
tracking onto paved surfaces. Where sediment is transported on to a
public road surface, the road shall be cleaned thoroughly at the end of
each day. Sediment shall be removed by shoveling or sweeping and
transported to a sediment control disposal area. Street washing shall be
allowed only after sediment is removed in this manner. This provision shall
apply to individual lots as well as to larger land disturbing activities.
18.TEMPORARY E &S CONTROL MEASURE REMOVAL:
All temporary, erosion and sediment control measures shall be removed
within 30 days after final site stabilization or after temporary measures are
no longer needed, unless otherwise authorized by the local program
authority. Trapped sediment and the disturbed soil areas resulting from the
disposition of temporary measures shall be permanently stabilized to prevent
further erosion and sediment.
19. ADEQUACY OF RECEIVING CHANNELS:
Properties and waterways downstream from the development site shall be
protected from sediment deposition, erosion and damage, due to increases
in volume, velocity and peak flow rates of stormwater runoff for the stated
frequency storm of 24 -hour duration.
SIN M. SHIMP �
Lic. No. 5183
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— — — — — - — — 0— 3.01 SAFETY FENCE C
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7 1 CUIV r
3.02 CONSTRUCTION ENTRANCE CE
X
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3.05 SILT FENCE
-------- Grtade Construction Entrance at 2%
3.09 TEMPORARY DIVERSION DIKE N.. away from Route 20 for drainage.
3.11 RIGHT—OF—WAY DIVERSION
V4
3.12 DIVERSION
[DRAWN TO SCALE] 3.14 TEMPORARY SEDIMENT BASIN SB ' , - -- _ _ - -- �� , _ ,r' // / /! 33
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3_31 TEMPORARY SEEDING fLOOQPLAIN LINE / ;'•'�' ',
PS 3.32 PERMANENT SEEDING
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LIMITS OF DISTURBANCE z
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— — EXISTING CONTOUR
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PROPOSED CONTOUR
("'EALINLE IN E
1 "=40'
Begin IVIUbb Grading.
Stabilize with seeding as appropriate.
SOILS LEGEND
12C — Catoctin Silt Loom — 7 to 15% Slopes
71B — Rabun Clay Loom — 2 to 7% Slopes
71C — Rabun Clay Loam — 7 to 15% Slopes
79B — Starr Silt Loam — 2 to 7% Slopes
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,Li c. No. X5183
�sSjONAL
LEVEL PORTION
APPROACH F
CHANNEL
EMBANKMENT
CREST AND CONTROL SECTION
—�- FLOW
BERM
PLAN VIEW
EXIT SECTOR
NOTE: NEITHER THE LOCATION
NOR ALIGNMENT OF THE
CONTROL SECTION HAS
TO COINCIDE WITH THE
CENTERLINE OF THE DAM.
WATER SURFACE
X— LENGTH OF
STAGE (H„)
EXIT SECTOR
CHANNEL SI
PROFILE ALONG CENTERLINE 100
f2
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Emergency Spillway
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PERMANENT SEEDING SPECIFICATIONS (PS
February 16 through April 30:
Kentucky 31 Fescue — 128 lbs/acre; Red Top Grass — 2 lbs/acre; Annual Rye — 20 lbs/acre.
Add 20 lbs/acre of Crownvetch and reduce Kentucky 31 Fescue to 108 lbs/acre when slopes
are greater than 3:1.
May 1 through August 15:
Kentucky 31 Fescue — 128 lbs/acre; Red Top Grass — 2 lbs/acre; Foxtail Millet — 20 lbs/acre.
Add 20 lbs/acre of Crownvetch and reduce Kentucky 31 Fescue to 108 lbs/acre 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 of Crownvetch and reduce Kentucky 31 Fescue to 108 lbs/acre when slopes
are greater than 3:1.
November 1 through February 15:
Kentucky 31 Fescue — 128 lbs/acre; Red Top Grass — 2 lbs/acre; Winter Rye — 20 lbs/acre.
Add 20 lbs/acre of Crownvetch and reduce Kentucky 31 Fescue to 108 lbs/acre when slopes
are 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 (23 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 (14 lbs. per 1,000 square feet) or
equivalent.
2 Permanent Seeding PS
C4 Not To Scale
STONE CONSTRUCTION ENTRANCE
EXISTING GROUND
70' MIN,
FILTER CLOTH 6" MIN, I A
SIDE ELEVATION
12' MIN.*
70' MIN.
B WASHRACK
I f (OPTIONAL)
VD ❑T #1 I I POSITIVE DRAINAGE
COURSE AGGREGATE B TO SEDIMENT
TRAPPING DEVICE
* MUST EXTEND FULL WIDTH
OF OPERATIONS AND EGRESS PLAN VIEW
10' M
EXISTING
PAVEMENT
5:1
MOUNTABLE BERM
(OPTIONAL)
10' MIN,
EXISTING
PAVEMENT
10' MIN.
SECTION A -A
REINFORCED CONCRETE
ow"H011=012110
DRAIN SPACE
Paved Construction Entrance W /Wash Rack (CE
Not To Scale
ORGANIC MULCH MATERIALS AND APPLICATION RATES
SB -1
SB -2
Hp
0.5
0.7
b
8
8
S
3.7
3.5
X
36
39
Emergency Spillway
q4)Not To Scale
0
PERMANENT SEEDING SPECIFICATIONS (PS
February 16 through April 30:
Kentucky 31 Fescue — 128 lbs/acre; Red Top Grass — 2 lbs/acre; Annual Rye — 20 lbs/acre.
Add 20 lbs/acre of Crownvetch and reduce Kentucky 31 Fescue to 108 lbs/acre when slopes
are greater than 3:1.
May 1 through August 15:
Kentucky 31 Fescue — 128 lbs/acre; Red Top Grass — 2 lbs/acre; Foxtail Millet — 20 lbs/acre.
Add 20 lbs/acre of Crownvetch and reduce Kentucky 31 Fescue to 108 lbs/acre 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 of Crownvetch and reduce Kentucky 31 Fescue to 108 lbs/acre when slopes
are greater than 3:1.
November 1 through February 15:
Kentucky 31 Fescue — 128 lbs/acre; Red Top Grass — 2 lbs/acre; Winter Rye — 20 lbs/acre.
Add 20 lbs/acre of Crownvetch and reduce Kentucky 31 Fescue to 108 lbs/acre when slopes
are 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 (23 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 (14 lbs. per 1,000 square feet) or
equivalent.
2 Permanent Seeding PS
C4 Not To Scale
STONE CONSTRUCTION ENTRANCE
EXISTING GROUND
70' MIN,
FILTER CLOTH 6" MIN, I A
SIDE ELEVATION
12' MIN.*
70' MIN.
B WASHRACK
I f (OPTIONAL)
VD ❑T #1 I I POSITIVE DRAINAGE
COURSE AGGREGATE B TO SEDIMENT
TRAPPING DEVICE
* MUST EXTEND FULL WIDTH
OF OPERATIONS AND EGRESS PLAN VIEW
10' M
EXISTING
PAVEMENT
5:1
MOUNTABLE BERM
(OPTIONAL)
10' MIN,
EXISTING
PAVEMENT
10' MIN.
SECTION A -A
REINFORCED CONCRETE
ow"H011=012110
DRAIN SPACE
Paved Construction Entrance W /Wash Rack (CE
Not To Scale
ORGANIC MULCH MATERIALS AND APPLICATION RATES
_
RATES:
MULCHES:
NOTES:
Per Acre
Per 1000 sq. ft.
Straw or Hay
12 - 2 tons
70 - 90 lbs.
Free from weeds and coarse
• . .• 11 1 1 f 1 1 1
'�•• • �_� �• X11• •,1� 1 �1 1 �1 1 1 �
(Minimum 2
matter. Must be anchored.
tons for
Spread with mulch blower or
winter cover)
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 - 2751bs.
Cut or shredded in 4 -6"
lengths. Air - dried. Do not
use in fine turf aeras. Apply
with mulch blower or by
hand.
Wood Chips
4 - 6 tons
185 - 2751bs.
Free of coarse matter. Air -
dried. Treat with 121bs
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 20001bs.lac. or 45 tbs./1000 sq. ft.
Source: Va. DWSC
3 Mulchin MU
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PLASTIC FENCE
s SAFETY FENCE (SAF
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CONCRETE
FOORNo
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GROUND uNE
PERSPECTIVE VIEW
METAL FENCE
CONSTRUCTION OF A SILT FENCE
(WITHOUT WIRE SUPPORT)
1. SET THE STAKES. 2. EXCAVATE A 4 "X 4" TRENCH
UPSLOPE ALONG THE LINE OF
STAKES.
6' MAX.
_'�
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i
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FLOeW� _
24I,lal -�
SHEET FLOW INSTALLATION
(PERSPECTIVE VIEW)
i
VIII
POINTS A SHOULD BE HIGHER THAN POINT B.
DRAINAGEWAY INSTALLATION
(FRONT ELEVATION)
4 Silt Fence Without Wire Support)
C4 JNot To Scale
PIPE OUTLET CONDITIONS
A
PIPE OUTLET TO FLAT
AREA WITH NO DEFINED
CHANNEL
o
6”
SECTION A —A 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.
6.0'
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Scale
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Sheet No.
4 OF 5
File No.
12.009
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GROUND uNE
PERSPECTIVE VIEW
METAL FENCE
CONSTRUCTION OF A SILT FENCE
(WITHOUT WIRE SUPPORT)
1. SET THE STAKES. 2. EXCAVATE A 4 "X 4" TRENCH
UPSLOPE ALONG THE LINE OF
STAKES.
6' MAX.
_'�
FLOW
3. STAPLE FILTER MATERIAL
TO STAKES AND EXTEND
IT INTO THE TRENCH.
i
4. BACKFILL AND COMPACT
THE EXCAVATED SOIL,
FLOeW� _
24I,lal -�
SHEET FLOW INSTALLATION
(PERSPECTIVE VIEW)
i
VIII
POINTS A SHOULD BE HIGHER THAN POINT B.
DRAINAGEWAY INSTALLATION
(FRONT ELEVATION)
4 Silt Fence Without Wire Support)
C4 JNot To Scale
PIPE OUTLET CONDITIONS
A
PIPE OUTLET TO FLAT
AREA WITH NO DEFINED
CHANNEL
o
6”
SECTION A —A 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.
6.0'
T
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SB -2
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Date
03/07/14
Scale
N/A
Sheet No.
4 OF 5
File No.
12.009
j Tem orar Seeding TS
. C5 Not To Scale
TEMPORARY DIVERSION DIKE
Compacted Soil
18" min.
� i -Flow
�1_I III
4.5' min.
2 TEMPORARY DIVERSION DIKE DD
C5 Not To Scale
Typical DV Sections
Section
PH1 DA
PH2 DA
TABLE 3.31 -B
Flow
Depth
ACCEPTABLE TEMPORARY SEEDING PLANT MATERIALS
-QUICK
REFERENCE FOR ALL REGIONS"
Right
Slope
DV 1
0.90
Rate
Planting Dates
Species
lbs. acre
Sept. I - Feb. 15
50/50 Mix of
2:1
DV 2
Annual Ryegrass
0.52
3.6
(Lolium multi-florum)
1.5
4.0
&
50 -100
DV 3
Cereal (Winter) Rye
0.65
2.2
(Secale cereale)
1.5
Feb. 16 - Apr. 30
Annual Ryegrass
60- 100
DV 4
(Lolium multi- florum)
6.45
May 1 - Aug 31
German Millet
50
5.2
(Setaria italica)
2:1
Source: Va. DSWC
j Tem orar Seeding TS
. C5 Not To Scale
TEMPORARY DIVERSION DIKE
Compacted Soil
18" min.
� i -Flow
�1_I III
4.5' min.
2 TEMPORARY DIVERSION DIKE DD
C5 Not To Scale
Typical DV Sections
Section
PH1 DA
PH2 DA
Q10 (max)
Flow
Depth
Channel
Depth
Channel
Width
Left
Slope
Right
Slope
DV 1
0.90
2.11
7.1
1.0
1.5
4.0
2:1
2:1
DV 2
1.08
0.52
3.6
1.0
1.5
4.0
2:1
2:1
DV 3
0.18
0.65
2.2
0.8
1.5
3.2
2:1
2:1
DV 4
2.01
6.45
21.8
1.3
1.5
5.2
2:1
2:1
TYPICAL SECTION
FOR DV 1 -4:
10% SETTLEMENT
5 Diversion Sections DV
C5 Not To Scale
- - Emergency
_Anti-Vortex _ _...Eli
Trash Rack
342 _ _._._..High _Wa_ter __....
El ev= 341.9 Sediment Trap-
338 ,.
334 �_
rT
DRIP LINE
SNOW FEN
BOARD FEf
Elev =337.9
342
338
55L
0 25 50 75
Sediment Basin 1 Cross - Section (SB -1
Scale: 1`_-10' Horiz.; 1 " =5' Vert.
Emergency Spillway
El -339.9 -I
Anti- Vortex �8 Top ;of Dam Elev = 342.0
342 _ Trash Rack 30 -o CMP _.. ... .__ _ _ . ..__._ ... ____ _ _.__.___.. ____ ._ 342
High Water p 0 5 Standpipe Embankment
diment....Trap_ __
Dry Storage ?s Outfall
338 _ _ _ _ Elev =338.9 338
_ _.
Se- dimnt-T lnv
- - =336.4 40.6' -24" CM
R Q 2,5% 19' Outfall Protection
Wet Storage - -_ - ES.-
_ Elev =336.7 De- watering:1
Device: nv 3
334 __ _. Bottom =333.6 1. 6" Orifice _ ____ -_ _ .. __..__ _.__._.._._
8" Tubing 4,1'x4.1' ' Existing Grade
x=11 5'x1.5' Anti -Seep
i� Collar
__.. .. __. •�'m...A � Concrete Base ...
..
0 25 50 75
Sediment Basin 2 Cross - Section
Scale: 1"=10' Hodz.; 1 " =5' Vert.
CORRECT METHODS OF TREE FENCING
:NCE
�
POP CORRECT TRUNK ARMORING
OOM 00
TRIANGULAR BOARD FENCE
6 Vree Protection Fence JP
C5J Not To Scale
INFLOW
SB -2
III M, PLAN I'�� ',
BA LOCATIONS
SEDIMENT �'
c SINS
DI
D/2 --{ NO SCALE
NORMAL POOL
D
NORM^' " ^^'
nlllr n
;ISER
D/2 L
BAFFLE
L = TOTAL DISTANCE FROM
THE POINT OF INFLOW
AROUND THE BAFFLE TO
THE RISER.
RISER
SHEETS OF 4' X 8' X 1/2" EXTERIOR
PLYWOOD OR EQUIVALENT
Baffles
C5 Not To Scale
d
4'
�6,
RISER CREST ELEVATION
POSTS MIN. SIZE 4" SQUARE
OR 5" ROUND. SET AT
LEAST 3' INTO THE GROUND.
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Dote
03/07/14
Scale
N/A
Sheet No.
5 OF 5
File No.
12.009