3_S-047-230 - Parcel 78 Reclamation Plan _22050131 HAMPSTEAD BYPASS PARCEL 78 RECLAMATION PLAN

NCDOT CONTRACT - C204553 : TIP NUMBER R-3300B
RECLAMATION PLAN FOR CONTRACTED PROJECTS
HAMPSTEAD BYPASS - PARCEL 78 - C204553
PENDER COUNTY, NORTH CAROLINA
OCTOBER 14, 2022
PREPARED BYPREPARED FOR
CONTI CIVIL, LLC
611 SPRINGBRANCH ROAD
DUNN, NC 28334
REFERENCE: 2022 MICROSOFT BING MAPS REFERENCE: 2022 MICROSOFT BING MAPS
VICINITY MAP SITE LOCATION
SCALE: 1" = 5,000'SCALE: 1" = 2,000'
PROPOSED SITE
PROPOSED SITE
N N
CALLO R C L I C K 811BEFO
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DIGGING P A R T N ER
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S&ME, INC.
2016 AYRSLEY TOWN BLVD., SUITE 2-A
CHARLOTTE, NC 28273DR
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THESE DRAWINGS HAVE BEEN PREPARED BY S&ME FOR OUR CLIENT'S USE. WRITTEN
APPROVAL FROM S&ME SHALL BE OBTAINED PRIOR TO ANY THIRD-PARTY USE,
MODIFICATION, AND REPRODUCTION, OR RELIANCE, EXCEPT AS REQUIRED BY LAW. S&ME
ACCEPTS NO RESPONSIBILITY, AND DENIES ANY LIABILITY WHATSOEVER, TO ANY PARTY
THAT USES OR RELIES ON THESE DRAWINGS WITHOUT S&ME'S EXPRESS WRITTEN CONSENT.
PREPARED BY/UNDER:
JOSHUA M. BELL
NCDOT LEVEL III
CERTIFICATION NO. 3366
SITE DATA
PROJECT LOCATION:
PROJECT ADDRESS:CAISON ROAD
CITY OR TOWNSHIP:TOPSAIL
COUNTY:PENDER COUNTY
STATE:NORTH CAROLINA
ZIP CODE:28443
LATITUDE:34°23'27.06"N (34.3909°)
LONGITUDE:77°42'07.55"W (-77.7021°)
PRIMARY PERMITTEE INFORMATION:
COMPANY:CONTI CIVIL, LLC
PROJECT NUMBER:C204553
MAILING ADDRESS:611 SPRINGBRANCH ROAD
DUNN, NC 28334
TELEPHONE NUMBER:877-776-2427
ENVIRONMENTAL COMPLIANCE
COORDINATOR:
JOHN KRISTENSEN
E-MAIL ADDRESS:[e-mail]
TELEPHONE NUMBER:978-339-3513
PRIMARY SITE CONTACT:BRYCE LOCKE
E-MAIL ADDRESS:[e-mail]
TELEPHONE NUMBER:919-239-3063
PROJECT MANAGER:AARON BOGNER
E-MAIL ADDRESS:[e-mail]
TELEPHONE NUMBER:919-218-4274
CONSULTANT INFORMATION:
ENGINEERING FIRM:S&ME, INC.
PROJECT NUMBER:22050131
MAILING ADDRESS:2016 AYRSLEY TOWN BLVD., SUITE 2-A
CHARLOTTE, NC 28273
TELEPHONE NUMBER:704-523-4726
E&SC PLAN PREPARER NAME:JOSHUA M. BELL, P.E.
NCDOT LEVEL III CERT. NUMBER:3366
COMPANY/FIRM NAME:S&ME, INC.
NC ENG. FIRM LICENSE NUMBER:F-0176
PROJECT MANAGER:JOSHUA M. BELL, P.E.
E-MAIL ADDRESS:[e-mail]
TELEPHONE NUMBER:704-523-4726
DRAWINGS
NUMBER TITLE
GENERAL
0 COVER SHEET
PLAN VIEWS
1 EROSION CONTROL PLAN SHEET INDEX
2 EROSION CONTROL PLAN - AREA 78
3 EROSION CONTROL PLAN - STOCKPILE 78
4 PROPOSED CONDITIONS SHEET INDEX
5 PROPOSED PLAN AND PROFILE - BORROW PIT 78
6 PROPOSED PLAN AND PROFILE - STOCKPILE 78
NOTES & DETAILS
7 NOTES
8 NCG01
9 SEEDING SPECIFICATIONS
10 DETAILS (1 OF 3)
11 DETAILS (2 OF 3)
12 DETAILS (3 OF 3)
BORROW PIT 78
±20.73 ACRES
STOCKPILE 78
±17.96 ACRES
HO
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PARCEL # 3293-06-9673-0000
N/F: PENDER PTNR, LLC
DB 3462, PG 098
PARCEL # 3293-05-7356-0000
N/F: NADEAU, MICHAEL G.
DB 1507, PG 158
PARCEL # 3293-14-6106-0000
N/F: NADEAU, MICHAEL
DB 1218, PG 151
PARCEL # 3293-24-1885-0000
N/F: NADEAU, MICHAEL G.
DB 1507, PG 158
PARCEL # 3293-27-6104-0000
N/F: PRD PROPERTIES, LLC
PARCEL # 3293-06-9673-0000
N/F: PENDER PTNR, LLC
DB 3462, PG 098
PARCEL # 3293-27-6104-0000
N/F: PRD PROPERTIES, LLC
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REFERENCES:
1.2018 TOPOGRAPHIC CONTOURS DERIVED FROM NC DEPARTMENT
OF PUBLIC SAFETY EMERGENCY MANAGEMENT (NCDPS) NC SPATIAL
DATA DOWNLOAD TOOL. THIS DIGITAL ELEVATION MODEL (DEM) IN
PENDER COUNTY, NORTH CAROLINA WAS CONVERTED INTO
2-FOOT CONTOURS USING ARCGIS SPATIAL ANAYLYST.
2.THE LOCATION OF THE PROPOSED LAND DISTURBANCE AREA IS
APPROXIMATE AND BASED ON DESIGN NEEDS AND INFORMATION
PROVIDED BY THE OWNER.
EXISTING LEGEND:
LIMITS OF DISTURBANCELOD
PROPOSED LEGEND:
MINOR CONTOUR (2-FT.)
MAJOR CONTOUR (10-FT.)60
PROPERTY BOUNDARY
GRAVEL / DIRT ROAD
WETLAND - PENDER AJD
WETLAND - NCDOT PJD - 2010
(SUPERCEDED BY 2022)
DRAWING NUMBER
PROJECT NUMBER
BY
DE
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NO
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22050131
1 12
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2
0 200 400
PLAN
GRAPHIC SCALE (IN FEET)
2016 AYRSLEY TOWN BLVD.
SUITE 2-A
CHARLOTTE, NC 28273
[phone]
ENGINEERING FIRM
LICENSE NUMBER: F-0176
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PREPARED BY/UNDER:
JOSHUA M. BELL
NCDOT LEVEL III
CERTIFICATION NO. 3366
HAMPSTEAD BYPASS RECLAMATION PLAN
DRAWING 3 - EROSION CONTROL PLAN -
STOCKPILE 78
HAMPSTEAD BYPASS RECLAMATION PLAN
DRAWING 2 - EROSION CONTROL PLAN -
BORROW PIT 78
VIEWPORT BOUNDARY
REFERENCES:
1.2018 TOPOGRAPHIC CONTOURS DERIVED FROM NC DEPARTMENT OF
PUBLIC SAFETY EMERGENCY MANAGEMENT (NCDPS) NC SPATIAL DATA
DOWNLOAD TOOL. THIS DIGITAL ELEVATION MODEL (DEM) IN PENDER
COUNTY, NORTH CAROLINA WAS CONVERTED INTO 2-FOOT CONTOURS
USING ARCGIS SPATIAL ANAYLYST.
2.THE LOCATION OF THE PROPOSED LAND DISTURBANCE AREA IS
APPROXIMATE AND BASED ON DESIGN NEEDS AND INFORMATION
PROVIDED BY THE OWNER.
NOTES:
1.STOCKPILE AREAS FOR SEGREGATION OR STAGING OF SOIL MATERIALS
SHALL BE LOCATED AS NEEDED WITHIN THE LIMITS OF DISTURBANCE.
STOCKPILES LOCATED ABOVE EXISTING GRADE PRIOR TO PIT EXCAVATION
SHALL BE CONSTRUCTED IN ACCORDANCE WITH DETAIL 8, DRAWING 11 -
TEMPORARY STOCKPILE AND SURROUNDED ON THE DOWN GRADIENT
SIDES BY SILT FENCE OR COMPOST FILTER SOCK. STOCKPILES LOCATED
WITHIN A PIT EXCAVATION WHERE STORAGE VOLUME BELOW GRADE IS
PROVIDED AND NO SURFACE DISCHARGE IS POSSIBLE DO NOT REQUIRE
ADDITIONAL PERIMETER MEASURES.
2.EXCAVATION WILL LIKELY OCCUR BELOW THE WATER TABLE. TEMPORARY
DEWATERING BASINS SHALL BE LOCATED AS NEEDED TO PROVIDE A
LOCATION FOR EXCAVATION DEWATERING WHERE DEWATERING TO A
NEARBY EXCAVATED BORROW AREA IS NOT FEASIBLE OR AVAILABLE.
CONTRACTOR SHALL UTILIZE DETAIL 9, DRAWING 12 - TEMPORARY
DEWATERING BASINS ACHIEVING THE MINIMUM STORAGE VOLUME
REQUIRED BASED ON THE PUMPING PEAK CAPACITY AND CONSTRUCTING
IN ACCORDANCE WITH THE DETAIL AND PLAN VIEW TO PROVIDE THE
REQUIRED GEOMETRY IN BOTH SURFACE AREA AND LENGTH TO WIDTH
RATIO. BASIN QUANTITY MAY CHANGE AT TIMES BASED ON
CONSTRUCTION PROGRESSION AND AREAS AREA NOT TO BE LIMITED TO
A SINGLE TEMPORARY DEWATERING BASIN IF THE CIRCUMSTANCES
REQUIRE MULTIPLE LOCATIONS IN A SINGLE SAND PIT AREA TO
FACILITATE EXCAVATION AND DEWATERING.
3.UNCONTAMINATED, EXCAVATED UNSUITABLE MATERIALS LIMITED TO
CLEAN SOIL, ROCK, CONCRETE, BRICK, AND OTHER INERT MATERIALS MAY
BE WASTED INTO THE EXCAVATED BORROW PIT AREAS. MIXTURES OF SOIL
AND VEGETATION, THAT ARE PRIMARILY SOIL, MAYBE PLACED IN
NON-PERMITTED DISPOSAL BORROW PIT AREAS.
4.EXCAVATION DEPTHS INDICATED ON PLANS ARE POTENTIAL TARGETS
AND DEPTHS WILL VARY BASED ON THE AVAILABILITY AND DEPTH OF
SUITABLE MATERIALS. EXCAVATION WITHIN IN THE BORROW AREAS CAN
VARY IN SLOPE STEEPNESS AND DEPTH IN THE INITIAL EXCAVATION
SUBJECT TO OSHA EXCAVATION SAFETY STANDARDS. FINAL SIDE SLOPES
SHALL BE FINISHED AT 3H:1V OR FLATTER.
EXISTING LEGEND:PROPOSED LEGEND:
MINOR CONTOUR (2-FT.)
MAJOR CONTOUR (10-FT.)60
PROPERTY BOUNDARY
WETLAND - NCDOT PJD - 2010
GRAVEL / DIRT ROAD
MINOR CONTOUR (2-FT.)
REINFORCED SILT FENCE
MAJOR CONTOUR (10-FT.)30
SAND MINE BOUNDARY
EXCLUSION SAFETY FENCEXXX
LIMITS OF DISTURBANCELOD
HAMPSTEAD BYPASS NCDOT EASEMENT
(SUPERCEDED BY 2022)
BORROW PIT 78
±20.73 ACRES
±17.96 ACRES
PARCEL # 3293-06-9673-0000
N/F: PENDER PTNR, LLC
DB 3462, PG 098
PARCEL # 3293-05-7356-0000
N/F: NADEAU, MICHAEL G.
DB 1507, PG 158
PARCEL # 3293-14-6106-0000
N/F: NADEAU, MICHAEL
DB 1218, PG 151
PARCEL # 3293-24-1885-0000
N/F: NADEAU, MICHAEL G.
DB 1507, PG 158
PARCEL # 3293-27-6104-0000
N/F: PRD PROPERTIES, LLC
PARCEL # 3293-06-9673-0000
N/F: PENDER PTNR, LLC
DB 3462, PG 098
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DRAWING NUMBER
PROJECT NUMBER
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22050131
2 12
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10
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1
4
/
2
0
2
2
0 100 200
PLAN
GRAPHIC SCALE (IN FEET)
2016 AYRSLEY TOWN BLVD.
SUITE 2-A
CHARLOTTE, NC 28273
[phone]
ENGINEERING FIRM
LICENSE NUMBER: F-0176
DR
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STOCKPILE 78
PREPARED BY/UNDER:
JOSHUA M. BELL
NCDOT LEVEL III
CERTIFICATION NO. 3366
1
10
REINFORCED SILT FENCE
(TYP.)
7
11
EXCLUSION SAFETY FENCE
(TYP.)
REFERENCES:
1.2018 TOPOGRAPHIC CONTOURS DERIVED FROM NC DEPARTMENT OF
PUBLIC SAFETY EMERGENCY MANAGEMENT (NCDPS) NC SPATIAL DATA
DOWNLOAD TOOL. THIS DIGITAL ELEVATION MODEL (DEM) IN PENDER
COUNTY, NORTH CAROLINA WAS CONVERTED INTO 2-FOOT CONTOURS
USING ARCGIS SPATIAL ANAYLYST.
2.THE LOCATION OF THE PROPOSED LAND DISTURBANCE AREA IS
APPROXIMATE AND BASED ON DESIGN NEEDS AND INFORMATION
PROVIDED BY THE OWNER.
NOTES:
1.STOCKPILE AREAS FOR SEGREGATION OR STAGING OF SOIL MATERIALS
SHALL BE LOCATED AS NEEDED WITHIN THE LIMITS OF DISTURBANCE.
STOCKPILES LOCATED ABOVE EXISTING GRADE PRIOR TO PIT EXCAVATION
SHALL BE CONSTRUCTED IN ACCORDANCE WITH DETAIL 8, DRAWING 11 -
TEMPORARY STOCKPILE AND SURROUNDED ON THE DOWN GRADIENT
SIDES BY SILT FENCE OR COMPOST FILTER SOCK. STOCKPILES LOCATED
WITHIN A PIT EXCAVATION WHERE STORAGE VOLUME BELOW GRADE IS
PROVIDED AND NO SURFACE DISCHARGE IS POSSIBLE DO NOT REQUIRE
ADDITIONAL PERIMETER MEASURES.
2.EXCAVATION WILL LIKELY OCCUR BELOW THE WATER TABLE. TEMPORARY
DEWATERING BASINS SHALL BE LOCATED AS NEEDED TO PROVIDE A
LOCATION FOR EXCAVATION DEWATERING WHERE DEWATERING TO A
NEARBY EXCAVATED BORROW AREA IS NOT FEASIBLE OR AVAILABLE.
CONTRACTOR SHALL UTILIZE DETAIL 9, DRAWING 12 - TEMPORARY
DEWATERING BASINS ACHIEVING THE MINIMUM STORAGE VOLUME
REQUIRED BASED ON THE PUMPING PEAK CAPACITY AND CONSTRUCTING
IN ACCORDANCE WITH THE DETAIL AND PLAN VIEW TO PROVIDE THE
REQUIRED GEOMETRY IN BOTH SURFACE AREA AND LENGTH TO WIDTH
RATIO. BASIN QUANTITY MAY CHANGE AT TIMES BASED ON
CONSTRUCTION PROGRESSION AND AREAS AREA NOT TO BE LIMITED TO
A SINGLE TEMPORARY DEWATERING BASIN IF THE CIRCUMSTANCES
REQUIRE MULTIPLE LOCATIONS IN A SINGLE SAND PIT AREA TO
FACILITATE EXCAVATION AND DEWATERING.
3.UNCONTAMINATED, EXCAVATED UNSUITABLE MATERIALS LIMITED TO
CLEAN SOIL, ROCK, CONCRETE, BRICK, AND OTHER INERT MATERIALS MAY
BE WASTED INTO THE EXCAVATED BORROW PIT AREAS. MIXTURES OF SOIL
AND VEGETATION, THAT ARE PRIMARILY SOIL, MAYBE PLACED IN
NON-PERMITTED DISPOSAL BORROW PIT AREAS.
4.EXCAVATION DEPTHS INDICATED ON PLANS ARE POTENTIAL TARGETS
AND DEPTHS WILL VARY BASED ON THE AVAILABILITY AND DEPTH OF
SUITABLE MATERIALS. EXCAVATION WITHIN IN THE BORROW AREAS CAN
VARY IN SLOPE STEEPNESS AND DEPTH IN THE INITIAL EXCAVATION
SUBJECT TO OSHA EXCAVATION SAFETY STANDARDS. FINAL SIDE SLOPES
SHALL BE FINISHED AT 3H:1V OR FLATTER.
EXISTING LEGEND:PROPOSED LEGEND:
MINOR CONTOUR (2-FT.)
MAJOR CONTOUR (10-FT.)60
PROPERTY BOUNDARY
WETLAND - NCDOT PJD - 2010
GRAVEL / DIRT ROAD
MINOR CONTOUR (2-FT.)
REINFORCED SILT FENCE
MAJOR CONTOUR (10-FT.)30
SAND MINE BOUNDARY
EXCLUSION SAFETY FENCEXXX
LIMITS OF DISTURBANCELOD
HAMPSTEAD BYPASS NCDOT EASEMENT
(SUPERCEDED BY 2022)
STOCKPILE 78
±17.96 ACRES
PARCEL # 3293-06-9673-0000
N/F: PENDER PTNR, LLC
DB 3462, PG 098
PARCEL # 3293-06-9673-0000
N/F: PENDER PTNR, LLC
DB 3462, PG 098
PARCEL # 3293-27-6104-0000
N/F: PRD PROPERTIES, LLC
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SUITE 2-A
CHARLOTTE, NC 28273
[phone]
ENGINEERING FIRM
LICENSE NUMBER: F-0176
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NCDOT LEVEL III
CERTIFICATION NO. 3366
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7
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±20.73 ACRES
STOCKPILE 78
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PARCEL # 3293-06-9673-0000
N/F: PENDER PTNR, LLC
DB 3462, PG 098
PARCEL # 3293-05-7356-0000
N/F: NADEAU, MICHAEL G.
DB 1507, PG 158
PARCEL # 3293-14-6106-0000
N/F: NADEAU, MICHAEL
DB 1218, PG 151
PARCEL # 3293-24-1885-0000
N/F: NADEAU, MICHAEL G.
DB 1507, PG 158
PARCEL # 3293-27-6104-0000
N/F: PRD PROPERTIES, LLC
PARCEL # 3293-06-9673-0000
N/F: PENDER PTNR, LLC
DB 3462, PG 098
PARCEL # 3293-27-6104-0000
N/F: PRD PROPERTIES, LLC
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REFERENCES:
1.2018 TOPOGRAPHIC CONTOURS DERIVED FROM NC DEPARTMENT
OF PUBLIC SAFETY EMERGENCY MANAGEMENT (NCDPS) NC SPATIAL
DATA DOWNLOAD TOOL. THIS DIGITAL ELEVATION MODEL (DEM) IN
PENDER COUNTY, NORTH CAROLINA WAS CONVERTED INTO
2-FOOT CONTOURS USING ARCGIS SPATIAL ANAYLYST.
2.THE LOCATION OF THE PROPOSED LAND DISTURBANCE AREA IS
APPROXIMATE AND BASED ON DESIGN NEEDS AND INFORMATION
PROVIDED BY THE OWNER.
EXISTING LEGEND:
LIMITS OF DISTURBANCELOD
PROPOSED LEGEND:
HAMPSTEAD BYPASS NCDOT EASEMENT
MINOR CONTOUR (2-FT.)
MAJOR CONTOUR (10-FT.)60
PROPERTY BOUNDARY
GRAVEL / DIRT ROAD
WETLAND - PENDER AJD
WETLAND - NCDOT PJD - 2010
(SUPERCEDED BY 2022)
DRAWING NUMBER
PROJECT NUMBER
BY
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PLAN
GRAPHIC SCALE (IN FEET)
2016 AYRSLEY TOWN BLVD.
SUITE 2-A
CHARLOTTE, NC 28273
[phone]
ENGINEERING FIRM
LICENSE NUMBER: F-0176
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PREPARED BY/UNDER:
JOSHUA M. BELL
NCDOT LEVEL III
CERTIFICATION NO. 3366
HAMPSTEAD BYPASS RECLAMATION PLAN
DRAWING 6 - PROPOSED PLAN AND PROFILE -
STOCKPILE 78
HAMPSTEAD BYPASS RECLAMATION PLAN
DRAWING 5 - PROPOSED PLAN AND PROFILE -
BORROW PIT 78
VIEWPORT BOUNDARY
N
SLOPE BLANKET
REFERENCES:
1.2018 TOPOGRAPHIC CONTOURS DERIVED FROM NC DEPARTMENT OF
PUBLIC SAFETY EMERGENCY MANAGEMENT (NCDPS) NC SPATIAL DATA
DOWNLOAD TOOL. THIS DIGITAL ELEVATION MODEL (DEM) IN PENDER
COUNTY, NORTH CAROLINA WAS CONVERTED INTO 2-FOOT CONTOURS
USING ARCGIS SPATIAL ANAYLYST.
2.THE LOCATION OF THE PROPOSED LAND DISTURBANCE AREA IS
APPROXIMATE AND BASED ON DESIGN NEEDS AND INFORMATION
PROVIDED BY THE OWNER.
NOTES:
1.STOCKPILE AREAS FOR SEGREGATION OR STAGING OF SOIL MATERIALS
SHALL BE LOCATED AS NEEDED WITHIN THE LIMITS OF DISTURBANCE.
STOCKPILES LOCATED ABOVE EXISTING GRADE PRIOR TO PIT EXCAVATION
SHALL BE CONSTRUCTED IN ACCORDANCE WITH DETAIL 8, DRAWING 11 -
TEMPORARY STOCKPILE AND SURROUNDED ON THE DOWN GRADIENT
SIDES BY SILT FENCE OR COMPOST FILTER SOCK. STOCKPILES LOCATED
WITHIN A PIT EXCAVATION WHERE STORAGE VOLUME BELOW GRADE IS
PROVIDED AND NO SURFACE DISCHARGE IS POSSIBLE DO NOT REQUIRE
ADDITIONAL PERIMETER MEASURES.
2.EXCAVATION WILL LIKELY OCCUR BELOW THE WATER TABLE. TEMPORARY
DEWATERING BASINS SHALL BE LOCATED AS NEEDED TO PROVIDE A
LOCATION FOR EXCAVATION DEWATERING WHERE DEWATERING TO A
NEARBY EXCAVATED BORROW AREA IS NOT FEASIBLE OR AVAILABLE.
CONTRACTOR SHALL UTILIZE DETAIL 9, DRAWING 12 - TEMPORARY
DEWATERING BASINS ACHIEVING THE MINIMUM STORAGE VOLUME
REQUIRED BASED ON THE PUMPING PEAK CAPACITY AND CONSTRUCTING
IN ACCORDANCE WITH THE DETAIL AND PLAN VIEW TO PROVIDE THE
REQUIRED GEOMETRY IN BOTH SURFACE AREA AND LENGTH TO WIDTH
RATIO. BASIN QUANTITY MAY CHANGE AT TIMES BASED ON
CONSTRUCTION PROGRESSION AND AREAS AREA NOT TO BE LIMITED TO
A SINGLE TEMPORARY DEWATERING BASIN IF THE CIRCUMSTANCES
REQUIRE MULTIPLE LOCATIONS IN A SINGLE SAND PIT AREA TO
FACILITATE EXCAVATION AND DEWATERING.
3.UNCONTAMINATED, EXCAVATED UNSUITABLE MATERIALS LIMITED TO
CLEAN SOIL, ROCK, CONCRETE, BRICK, AND OTHER INERT MATERIALS MAY
BE WASTED INTO THE EXCAVATED BORROW PIT AREAS. MIXTURES OF SOIL
AND VEGETATION, THAT ARE PRIMARILY SOIL, MAYBE PLACED IN
NON-PERMITTED DISPOSAL BORROW PIT AREAS.
4.EXCAVATION DEPTHS INDICATED ON PLANS ARE POTENTIAL TARGETS
AND DEPTHS WILL VARY BASED ON THE AVAILABILITY AND DEPTH OF
SUITABLE MATERIALS. EXCAVATION WITHIN IN THE BORROW AREAS CAN
VARY IN SLOPE STEEPNESS AND DEPTH IN THE INITIAL EXCAVATION
SUBJECT TO OSHA EXCAVATION SAFETY STANDARDS. FINAL SIDE SLOPES
SHALL BE FINISHED AT 3H:1V OR FLATTER.
EXISTING LEGEND:PROPOSED LEGEND:
MINOR CONTOUR (2-FT.)
MAJOR CONTOUR (10-FT.)60
PROPERTY BOUNDARY
WETLAND - NCDOT PJD - 2010
GRAVEL / DIRT ROAD
MINOR CONTOUR (2-FT.)
REINFORCED SILT FENCE
MAJOR CONTOUR (10-FT.)30
SAND MINE BOUNDARY
EXCLUSION SAFETY FENCEXXX
LIMITS OF DISTURBANCELOD
HAMPSTEAD BYPASS NCDOT EASEMENT
(SUPERCEDED BY 2022)
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A
BORROW PIT 78
±20.73 ACRES
PARCEL # 3293-06-9673-0000
N/F: PENDER PTNR, LLC
DB 3462, PG 098
PARCEL # 3293-05-7356-0000
N/F: NADEAU, MICHAEL G.
DB 1507, PG 158
PARCEL # 3293-14-6106-0000
N/F: NADEAU, MICHAEL
DB 1218, PG 151
PARCEL # 3293-24-1885-0000
N/F: NADEAU, MICHAEL G.
DB 1507, PG 158
PARCEL # 3293-27-6104-0000
N/F: PRD PROPERTIES, LLC
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PROFILE HORIZONTAL
PLAN
PROFILE VERTICAL
GRAPHIC SCALE (IN FEET)
ENGINEERING FIRM
LICENSE NUMBER: F-0176
2016 AYRSLEY TOWN BLVD.
SUITE 2-A
CHARLOTTE, NC 28273
[phone]
PREPARED BY/UNDER:
JOSHUA M. BELL
NCDOT LEVEL III
CERTIFICATION NO. 3366
PLAN VIEW
PROFILE VIEW
APPROXIMATE EXISTING
GROUND SURFACE
PROPOSED GRADE
NOTE: SLOPES SHALL NOT
EXCEED 3H:1V
APPROXIMATE SUBSURFACE
WATER ELEVATION BASED ON
PENDER COUNTY W.S.S
3H
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SLOPE MATTING
(TYP.)
PROPOSED POND WATER
ELEVATION POST EXCAVATION
EXISTING MAGNOLIA TREE TO
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1
10
REINFORCED SILT FENCE
(TYP.)
7
11
EXCLUSION SAFETY FENCE
(TYP.)
Xref ..\~XREF\22050131_TOBASE.dwg SLOPE BLANKET
REFERENCES:
1.2018 TOPOGRAPHIC CONTOURS DERIVED FROM NC DEPARTMENT OF
PUBLIC SAFETY EMERGENCY MANAGEMENT (NCDPS) NC SPATIAL DATA
DOWNLOAD TOOL. THIS DIGITAL ELEVATION MODEL (DEM) IN PENDER
COUNTY, NORTH CAROLINA WAS CONVERTED INTO 2-FOOT CONTOURS
USING ARCGIS SPATIAL ANAYLYST.
2.THE LOCATION OF THE PROPOSED LAND DISTURBANCE AREA IS
APPROXIMATE AND BASED ON DESIGN NEEDS AND INFORMATION
PROVIDED BY THE OWNER.
NOTES:
1.STOCKPILE AREAS FOR SEGREGATION OR STAGING OF SOIL MATERIALS
SHALL BE LOCATED AS NEEDED WITHIN THE LIMITS OF DISTURBANCE.
STOCKPILES LOCATED ABOVE EXISTING GRADE PRIOR TO PIT EXCAVATION
SHALL BE CONSTRUCTED IN ACCORDANCE WITH DETAIL 8, DRAWING 11 -
TEMPORARY STOCKPILE AND SURROUNDED ON THE DOWN GRADIENT
SIDES BY SILT FENCE OR COMPOST FILTER SOCK. STOCKPILES LOCATED
WITHIN A PIT EXCAVATION WHERE STORAGE VOLUME BELOW GRADE IS
PROVIDED AND NO SURFACE DISCHARGE IS POSSIBLE DO NOT REQUIRE
ADDITIONAL PERIMETER MEASURES.
2.EXCAVATION WILL LIKELY OCCUR BELOW THE WATER TABLE. TEMPORARY
DEWATERING BASINS SHALL BE LOCATED AS NEEDED TO PROVIDE A
LOCATION FOR EXCAVATION DEWATERING WHERE DEWATERING TO A
NEARBY EXCAVATED BORROW AREA IS NOT FEASIBLE OR AVAILABLE.
CONTRACTOR SHALL UTILIZE DETAIL 9, DRAWING 12 - TEMPORARY
DEWATERING BASINS ACHIEVING THE MINIMUM STORAGE VOLUME
REQUIRED BASED ON THE PUMPING PEAK CAPACITY AND CONSTRUCTING
IN ACCORDANCE WITH THE DETAIL AND PLAN VIEW TO PROVIDE THE
REQUIRED GEOMETRY IN BOTH SURFACE AREA AND LENGTH TO WIDTH
RATIO. BASIN QUANTITY MAY CHANGE AT TIMES BASED ON
CONSTRUCTION PROGRESSION AND AREAS AREA NOT TO BE LIMITED TO
A SINGLE TEMPORARY DEWATERING BASIN IF THE CIRCUMSTANCES
REQUIRE MULTIPLE LOCATIONS IN A SINGLE SAND PIT AREA TO
FACILITATE EXCAVATION AND DEWATERING.
3.UNCONTAMINATED, EXCAVATED UNSUITABLE MATERIALS LIMITED TO
CLEAN SOIL, ROCK, CONCRETE, BRICK, AND OTHER INERT MATERIALS MAY
BE WASTED INTO THE EXCAVATED BORROW PIT AREAS. MIXTURES OF SOIL
AND VEGETATION, THAT ARE PRIMARILY SOIL, MAYBE PLACED IN
NON-PERMITTED DISPOSAL BORROW PIT AREAS.
4.EXCAVATION DEPTHS INDICATED ON PLANS ARE POTENTIAL TARGETS
AND DEPTHS WILL VARY BASED ON THE AVAILABILITY AND DEPTH OF
SUITABLE MATERIALS. EXCAVATION WITHIN IN THE BORROW AREAS CAN
VARY IN SLOPE STEEPNESS AND DEPTH IN THE INITIAL EXCAVATION
SUBJECT TO OSHA EXCAVATION SAFETY STANDARDS. FINAL SIDE SLOPES
SHALL BE FINISHED AT 3H:1V OR FLATTER.
EXISTING LEGEND:PROPOSED LEGEND:
MINOR CONTOUR (2-FT.)
MAJOR CONTOUR (10-FT.)60
PROPERTY BOUNDARY
WETLAND - NCDOT PJD - 2010
GRAVEL / DIRT ROAD
MINOR CONTOUR (2-FT.)
REINFORCED SILT FENCE
MAJOR CONTOUR (10-FT.)30
SAND MINE BOUNDARY
EXCLUSION SAFETY FENCEXXX
LIMITS OF DISTURBANCELOD
HAMPSTEAD BYPASS NCDOT EASEMENT
(SUPERCEDED BY 2022)
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STOCKPILE 78
±17.96 ACRES
PARCEL # 3293-06-9673-0000
PARCEL # 3293-06-9673-0000
N/F: PENDER PTNR, LLC
DB 3462, PG 098
PARCEL # 3293-27-6104-0000
N/F: PRD PROPERTIES, LLC
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PROFILE HORIZONTAL
PLAN
PROFILE VERTICAL
GRAPHIC SCALE (IN FEET)
ENGINEERING FIRM
LICENSE NUMBER: F-0176
2016 AYRSLEY TOWN BLVD.
SUITE 2-A
CHARLOTTE, NC 28273
[phone]
PREPARED BY/UNDER:
JOSHUA M. BELL
NCDOT LEVEL III
CERTIFICATION NO. 3366PLAN VIEW
PROFILE VIEW
APPROXIMATE EXISTING
GROUND SURFACE
PROPOSED GRADE
NOTE: SLOPES SHALL NOT
EXCEED 4H:1V
APPROXIMATE SUBSURFACE
WATER ELEVATION BASE ON
PENDER COUNTY W.S.S.
4
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CROSS-SECTION A-A' - STOCKPILE AREA 78
STOCKPILE (AS SHOWN) SCHEMATIC VIEW ONLY - ACTUAL
STOCKPILES WILL GENERALLY FOLLOW LAYOUT BUT MAY
VARY IN SHAPE, DIMENSION, AND LOCATION FROM SHOWN
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BORROW PIT 78
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(TYP.)
NOTE: ACTUAL STOCKPILES WILL GENERALLY FOLLOW
LAYOUT BUT MAY VARY IN SHAPE, DIMENSION, AND
LOCATION FROM SHOWN
DRAWING NUMBER
PROJECT NUMBER
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ENGINEERING FIRM
LICENSE NUMBER: F-0176
2016 AYRSLEY TOWN BLVD.
SUITE 2-A
CHARLOTTE, NC 28273
[phone]
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GENERAL NOTES
1.ALL CONSTRUCTION ACTIVITIES SHALL BE PERFORMED BY A CONTRACTOR IN ACCORDANCE WITH THE
APPROVED DRAWINGS.
2.ANY DISCREPANCIES FOUND BETWEEN THE DRAWINGS AND SITE CONDITIONS OR ANY
INCONSISTENCIES OR AMBIGUITIES IN DRAWINGS OR SPECIFICATIONS SHALL BE IMMEDIATELY
REPORTED TO THE ENGINEER, IN WRITING, WHO SHALL PROMPTLY ADDRESS SUCH INCONSISTENCIES
OR AMBIGUITIES. WORK DONE BY THE CONTRACTOR AFTER DISCOVERY OF SUCH DISCREPANCIES,
INCONSISTENCIES, OR AMBIGUITIES SHALL BE DONE AT THE CONTRACTOR'S RISK.
3.LOCATE, PROTECT, AND MAINTAIN ALL EXISTING UTILITY LINES LOCATED WITHIN THE CONSTRUCTION
AREA.
WATER QUALITY
1.TEMPORARY PUMPING SHALL BE THROUGH THE USE OF FILTER BAG.
SITE ACCESS AND MONITORING
1.THE CONTRACTOR SHALL PROVIDE TRAFFIC BARRIERS AND TEMPORARY CONSTRUCTION FENCING TO
PREVENT ACCESS TO WORK AREA BY UNAUTHORIZED PARTIES.
EROSION AND SEDIMENT CONTROL NOTES
1.REFER TO THE CONSTRUCTION DRAWINGS FOR REQUIRED EROSION AND SEDIMENTATION CONTROL
MEASURES.
2.ALL CONSTRUCTION SHALL COMPLY WITH REQUIREMENTS OF THE CURRENT NCDOT STANDARDS AND
SPECIFICATIONS AND NCDEQ EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN MANUAL
AND LATEST REVISIONS.
3.INSPECT ALL EROSION AND SEDIMENT CONTROL MEASURES A MINIMUM OF ONCE PER 7 DAYS AND
AFTER ANY CUMULATIVE RAINFALL EVENT OF 1-INCH OR GREATER RUNOFF. MAINTAIN AND REPAIR
ALL EROSION AND SEDIMENT CONTROL MEASURES AS SOON AS PRACTICAL AFTER PRECIPITATION
EVENTS.
4.INSTALL ADDITIONAL EROSION CONTROL MEASURES (I.E. FILTER SOCKS, BIODEGRADABLE MATTING)
AS NECESSARY TO PREVENT EROSION AND SEDIMENT RUNOFF FROM THE WORK AREA.
5.PUMPING FOR TEMPORARY DEWATERING FOR TEMPORARY DEWATERING BASIN ONLY SHALL BE
DISCHARGED THROUGH A FILTER BAG WITHIN THE LOD.
6.THE CONTRACTOR SHALL INSPECT THE PUMPING SYSTEM PERIODICALLY ON A DAILY BASIS TO REDUCE
THE POTENTIAL FOR SEDIMENT LADEN WATER FROM BEING PUMPED TO THE PUMP DISCHARGE
LOCATION.
7.SPILL CONTAINMENT SHALL BE PROVIDED AROUND THE PUMP LOCATIONS TO HELP PREVENT FUEL OR
OIL AND GREASE FROM ENTERING THE SURFACE WATERS.
PRIMARY CONSTRUCTION SEQUENCE
1.PERFORM WORK IN ACCORDANCE WITH THE PROJECT DOCUMENTS (DRAWINGS AND TECHNICAL
SPECIFICATIONS), WETLAND (SKAGGS METHOD) BUFFER REQUIREMENTS, AND REQUIREMENTS OF
NORTH CAROLINA EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN MANUAL.
2.ATTEND PRE-CONSTRUCTION MEETING AND PROJECT MEETINGS.
3.INSTALL REQUIRED EROSION AND SEDIMENT CONTROL (E&SC) MEASURES, MAINTENANCE OF
MEASURES, AND REMOVAL AFTER SITE STABILIZATION.
4.CONTACT UTILITY LOCATION SERVICE TO LOCATE ON-SITE UTILITIES.
5.INSTALL SILT FENCE ALONG ALL ACCESS ROUTE PATHS.
6.INSTALL TEMPORARY CONSTRUCTION ACCESS FENCING AROUND WORK AREA.
7.MAINTAIN DEWATERING PUMP ON-SITE FOR TEMPORARY DEWATERING.
8.REMOVE VEGETATION AND TOPSOIL FROM CONSTRUCTION AREA FOR BORROW PIT EXCAVATION/
CONSTRUCTION.
9.EXCAVATE FOR OR CONSTRUCT TEMPORARY DEWATERING BASIN TO REQUIRED GRADES AND
STOCKPILE ANY SUITABLE SOIL FOR RE-USE. TEMPORARY DEWATERING BASINS ARE NECESSARY
WHERE GROUNDWATER WILL BE ENCOUNTERED AND THERE IS NO ADJACENT EXCAVATION AREA
AVAILABLE FOR DEWATERING AND INFILTRATION. TEMPORARY DEWATERING BASINS CAN BE
CONSTRUCTED ABOVE GRADE OR PARTIALLY/WHOLLY EXCAVATED. TEMPORARY DEWATERING BASINS
INSTALLED ABOVE GRADE SHALL REQUIRE RIPRAP STABILIZED APRON OUTLETS LOCATED AT THE
LOWEST ADJACENT GRADE TO PROVIDE POSITIVE DRAINAGE. EXCAVATED TEMPORARY DEWATERING
BASINS SHALL BE PIPED TO THE PROVIDED POSITIVE DRAINAGE TO THE ADJACENT DRAINAGE
FEATURE.
10.REMOVE VEGETATION AND SOIL MATERIAL NOT MEETING PROJECT SPECIFICATIONS FROM THE SITE.
11.BEGIN INITIAL EXCAVATION IN SAND PIT AREA, DEWATERING INTO DEWATERING BASIN AS
NECESSARY.
12.PERFORM TEMPORARY DEWATERING TO KEEP WATER LEVEL BELOW EXCAVATIONS TO PREVENT
SOFTENING OF EXCAVATION BOTTOM AND SIDES.
13.STABILIZE ALL DISTURBED AREAS.
14.ATTEND PRE-CLOSEOUT MEETING WITH OWNER AND ENGINEER TO ADDRESS REMAINING WORK
(PUNCH-LIST) ITEMS.
15.ATTEND FINAL CLOSEOUT MEETING WITH OWNER AND ENGINEER TO VERIFY REMAINING WORK
ITEMS ARE COMPLETE.
16.MAINTAIN E&SC MEASURES UNTIL SITE IS STABILIZED.
17.REMOVE E&SC MEASURES AFTER SITE IS STABILIZED.
CALCULATIONS:
TEMPORARY DEWATERING BASIN CALCULATION:
Q (PUMP RATE GPM) = 1000 - 1500 GPM (NCDOT LIMIT OF 1000 GPM)
t (DETENTION TIME IN HOURS) = 2 HOURS (MIN.)
V (CU. FT.) = 8.0203 * Q (GPM) * t (HRS)
V (CU. FT.) (MIN.) = 8.0203 * 1000 (GPM) * 2 (HRS) = 16,040.6 CU. FT.
V (CU. FT.) (PEAK) = 8.0203 * 1000 (GPM) * 4 (HRS) = 32,081.2 CU. FT.
PROVIDE STORAGE BASIN FOR 4 HOURS DETENTION WITH BASIN LENGTH TO WIDTH RATIO
BETWEEN 2:1 AND 5:1 WITH MAXIMUM DETPH OF 3 FEET.
MIN. AVERAGE AREA AT 1.5 FT DEPTH = 32,081.2 CU. FT. / 3 FT. = 10,693.73 SQ. FT.
BASIN DIMENSIONS PROVIDED:
LENGTH AT BOTTOM = 176 FT
WIDTH AT BOTTOM = 56 FT
LENGTH/WIDTH RATIO = 3.14:1 (BETWEEN 2:1 AND 5:1 REQUIRED)
BASIN VOLUME PROVIDED = 36,183 CU. FT. (GREATER THAN THE V (PEAK))
BASIN SKIMMER SIZING CALCULATION:
ASSUME VOLUME DRAWDOWN OVER 2 DAY PERIOD
FROM JW FAIRCLOTH SKIMMER COMPANY, 4 INCH SKIMMER WITH ORIFICE AT 3.8 INCH
DIAMETER PROVIDES DEWATERING OF 36,183 CU. FT. AT 2 DAYS. 4-INCH SKIMMER CAPABLE
OF 40,218 CU. FT. OVER 2 DAYS.
PROJECT NARRATIVE:
PROJECT DESCRIPTION
THE PROPOSED PROJECT INCLUDES THE EXCAVATION OF BORROW MATERIALS AND WASTING OF UNSUITABLE
ORGANIC MATERIALS, SOILS, AND STONE IN PENDER COUNTY, NORTH CAROLINA.
THE BORROW AREA FOOTPRINT INCLUDING ACCESS ROADS AND ADJACENT STOCKPILE (LIMITS OF
DISTURBANCE) IS APPROXIMATELY 38.69 ACRES. ONE BORROW AREA TOTALING APPROXIMATELY 20.73 ACRES
HAS BEEN DESIGNATED FOR SUITABLE HIGH GROUND PORTIONS OF THE PARENT PROPERTY. THE PROJECT HAS
BEEN PHASED SUCH THAT PRIORITY PITS ARE LOCATED WITHIN THIS PHASE, AND CONTINGENCY PITS, WHICH
MAY OR MAY NOT BE REQUIRED AT A LATER DATE, WILL BE INCLUDED IN A SUBSEQUENT PHASE.
EXISTING SITE CONDITIONS
THE SITE IS LOCATED ON THE NORTH SIDE OF U.S. HIGHWAY 17 NORTH (WILMINGTON HIGHWAY) NEAR
HAMPSTEAD, PENDER COUNTY, NORTH CAROLINA. THE SITE IS ADJACENT TO THE PROPOSED ROUTE OF THE
HAMPSTEAD BYPASS FROM WILMINGTON TO HAMPSTEAD (34.405°, -77.678°). THE PARENT PROPERTY WHERE
THE PROPOSED BORROW AREA AND STOCKPILE WILL BE LOCATED IS APPROXIMATELY 126.8 ACRES. WITHIN
THIS SITE, THE AREAS WHERE THE BORROW AREA AND STOCKPILE HAVE BEEN SITED WILL ENCOMPASS
APPROXIMATELY 38.7 ACRES.
THE SITE LIES WITHIN THE COASTAL PLAIN PHYSIOGRAPHIC REGION OF NORTH CAROLINA AND CONSISTS OF
UPLAND AND WETLAND TOPOGRAPHY WITH ONLY MINOR ELEVATION DIFFERENCES BETWEEN THE HIGHEST
AND LOWEST POINTS. A MAJORITY OF THE SITE CURRENTLY CONSISTS OF WOODED AREAS OR THOSE USED
FOR AGRICULTURAL/SILVICULTURE PURPOSES. PORTIONS OF THE SITE HAVE BEEN PREVIOUSLY CLEARED OR
OTHERWISE LIGHTLY DEVELOPED.
THE REMAINING SURROUNDING LAND USES CONSIST PRIMARILY OF WOODED AREAS, SCATTERED FIELDS, AND
COMMERCIAL AND RESIDENTIAL DEVELOPMENT.
EROSION AND SEDIMENT CONTROL MEASURES AND DETAILS
THE EROSION AND SEDIMENT CONTROL (E&SC) PLAN FOR THIS BORROW MATERIAL SOURCING PROJECT AND
RECLAMATION PLAN INVOLVE THE PLACEMENT OF A VARIETY OF E&SC MEASURES, AT STRATEGIC LOCATIONS
THROUGHOUT THE PROJECT LENGTH. THESE LOCATIONS WERE DETERMINED FROM FIELD OBSERVATIONS.
THESE DEVICES INCLUDE:
REINFORCED SILT FENCE FAIRCLOTH SKIMMER TEMPORARY STOCKPILES
COMPOST FILTER SOCK CONSTRUCTION ENTRANCE SLOPE MATTING
FILTER BAG (DEWATERING)EXCLUSION SAFETY FENCE TEMPORARY DEWATERING BASIN
ADDITIONAL E&SC MEASURES MAY BE REQUIRED DURING CONSTRUCTION IN ORDER TO CONTROL EROSION
AND/OR OFFSITE SEDIMENTATION. LAND DISTURBANCE BEYOND THE CONSTRUCTION LOD ON THE PLAN IS A
VIOLATION OF THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT AND SUBJECT TO
A FINE FROM NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY (NCDEQ). ACTUAL LOCATIONS OF
E&SC DEVICES SHOULD BE FIELD ADJUSTED BASED ON CONDITIONS IN THE FIELD.
PROJECT NOTES:
1.SITE BASE MAPPING AND TOPOGRAPHY IS FROM NCDOT LIDAR AND PENDER COUNTY GIS. WETLAND
INFORMATION WAS OBTAINED FROM USACE JURISDICTIONAL DETERMINATION WITH NATIONAL
WETLANDS INVENTORY ON THE PERIPHERY. ALL LINES AND GRADES ARE APPROXIMATE. CONTRACTOR
SHALL VERIFY BOUNDARIES, RELATIVE GRADES, SITE FEATURES, AND UNDERGROUND UTILITIES AND
RESOLVE CONFLICTS PRIOR TO BEGINNING WORK.
2.ALL WORK SHALL BE CONDUCTED IN CONFORMANCE WITH CURRENT NCDOT SPECIFICATIONS, SPECIAL
PROVISIONS, STANDARD DRAWINGS, AND DETAILS INCLUDING THOSE SHOWN ON OR PROVIDED WITH
THIS PLAN.
3.SITE SHOULD BE CLEARED OF TREES, BRUSH, TRASH, ETC. PRIOR TO THE PLACEMENT OF FILL MATERIAL.
4.EXCAVATION WILL LIKELY OCCUR BELOW THE WATER TABLE. TEMPORARY INITIAL DEWATERING IS
PROPOSED IN ACCORDANCE WITH DETAILS. CONTRACTOR TO INSTALL TEMPORARY DEWATERING
BASINS AS NEEDED TO PROVIDE FOR INITIAL EXCAVATION DEWATERING. AS EXCAVATION EVOLVES,
DEWATERING WILL TAKE PLACE INTO ADJACENT BORROW PIT EXCAVATIONS AS REQUIRED WHERE
INFILTRATION WITHOUT SURFACE DISCHARGE WILL PROVIDE THE SEDIMENTATION CONTROL.
5.TEMPORARY BASINS WILL BE LOCATED WITHIN THE LIMITS OF DISTURBANCE AND WITHIN AREAS
OF PROPOSED EXCAVATION AS A PRIORITY. IF REMOTE AREAS OF SHALLOW EXCAVATION ARE
PLANNED FOR BACKFILLING AND ARE NOT LIKELY TO ENCOUNTER GROUNDWATER TEMPORARY
DEWATERING BASINS WILL NOT BE INSTALLED SEPARATELY.
6.EXCAVATION DEPTHS INDICATED ON PLANS ARE POTENTIAL TARGETS AND DEPTHS WILL VARY
BASED ON THE AVAILABILITY AND DEPTH OF SUITABLE MATERIALS. EXCAVATION WITHIN IN THE
BORROW AREAS CAN VARY IN SLOPE STEEPNESS AND DEPTH IN THE INITIAL EXCAVATION SUBJECT
TO OSHA EXCAVATION SAFETY STANDARDS. FINAL SIDE SLOPES SHALL BE FINISHED AT 3H:1V OR
FLATTER.
7.STOCKPILE ELEVATIONS AND GRADING INDICATED ON PLANS ARE POTENTIAL TARGETS AND
ELEVATION OF FINAL STOCKPILE MAY VARY BASED ON THE AVAILABILITY OF EXCAVATED
MATERIALS. FINAL SIDE SLOPES SHALL BE FINISHED AT 4H:1V OR FLATTER.
8.50 FOOT WETLAND BUFFER SHALL REMAIN IN PLACE. WITHIN THE 50 FOOT BUFFER, THE CONTRACTOR MAY
USE THE AREA FOR TRAVEL ACCESS AROUND THE BORROW AREAS OR FOR EQUIPMENT ACCESS TO
MAINTAIN THE BORROW AREAS.
9.CONTRACTOR SHALL INSTALL TEMPORARY SILT FENCE OR COMPOST FILTER SOCK AS SHOWN ON THIS
PLAN AND SEDIMENT CONTROL MEASURES BEFORE COMMENCING LAND DISTURBING ACTIVITIES.
10.CONTRACTOR SHALL INSTALL AND MAINTAIN EC DEVICES SUFFICIENT TO CONTAIN SEDIMENT AROUND
ANY ERODIBLE MATERIAL STOCKPILE AREAS IN ACCORDANCE WITH THE DETAILS AND NOTES INDICATED
ON THE CONSTRUCTION PLANS.
11.AT THE END OF EACH WORKING DAY, CONTRACTOR SHALL INSTALL OR RE-ESTABLISH TEMPORARY
DIVERSIONS OR EARTH BERMS ACROSS ACCESS/HAUL ROADS TO DIRECT RUNOFF INTO SEDIMENT DEVICES.
SILT FENCE SECTIONS THAT ARE TEMPORARILY REMOVED SHALL BE REINSTALLED ACROSS ACCESS/HAUL
ROADS AT THE END OF EACH WORKING DAY.
12.STABILIZATION FOR THIS PROJECT SHALL COMPLY WITH THE TIME FRAME GUIDELINES AS SPECIFIED BY THE
NCG-010000 GENERAL CONSTRUCTION PERMIT EFFECTIVE AUGUST 3, 2011 ISSUED BY THE NORTH
CAROLINA DEPT. OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY. TEMPORARY
OR PERMANENT GROUND COVER STABILIZATION SHALL OCCUR WITHIN 7 CALENDAR DAYS FROM THE
LAST LAND-DISTURBING ACTIVITY, WITH THE FOLLOWING EXCEPTIONS IN WHICH TEMPORARY OR
PERMANENT GROUND COVER SHALL BE PROVIDED IN 14 CALENDAR DAYS FROM THE LAST
LAND-DISTURBING ACTIVITY:
·SLOPES BETWEEN 2:1 AND 3:1, WITH A SLOPE LENGTH OF 10 FT. OR LESS
·SLOPES 3:1 OR FLATTER, WITH A SLOPE OF LENGTH OF 50 FT. OR LESS
·SLOPES 4:1 OR FLATTER
10.FOR WETLANDS AND STREAMS ADDITIONAL INFORMATION SEE ENVIRONMENTAL EVALUATION REPORT
HAMPSTEAD BYPASS - BORROW AREA RECLAMATION PLAN PENDER COUNTY, NORTH
CAROLINAS&ME PROJECT NO. 22350131 DATED OCTOBER, 2022.
11.FEMA PANEL:
THE SUBJECT PROPERTY IS NOT LOCATED WITHIN A SPECIAL FLOOD HAZARD ZONE ACCORDING TO
COMMUNITY PANEL NO. 3720329300J , 02/16/2007.
COMMUNITY NAME: PENDER COUNTY.
PREPARED BY/UNDER:
JOSHUA M. BELL
NCDOT LEVEL III
CERTIFICATION NO. 3366
DRAWING NUMBER
PROJECT NUMBER
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ENGINEERING FIRM
LICENSE NUMBER: F-0176
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IMPLEMENTING THE DETAILS AND SPECIFICATIONS ON THIS PLAN SHEET WILL RESULT IN THE
CONSTRUCTION ACTIVITY BEING CONSIDERED COMPLIANT WITH THE GROUND STABILIZATION AND
MATERIALS HANDLING SECTIONS OF THE NCG01 CONSTRUCTION GENERAL PERMIT (SECTIONS E AND F,
RESPECTIVELY). THE PERMITTEE SHALL COMPLY WITH THE EROSION AND SEDIMENT CONTROL PLAN
APPROVED BY THE DELEGATED AUTHORITY HAVING JURISDICTION. ALL DETAILS AND SPECIFICATIONS
SHOWN ON THIS SHEET MAY NOT APPLY DEPENDING ON SITE CONDITIONS AND THE DELEGATED
AUTHORITY HAVING JURISDICTION.
NCG01 - PART II, SECTION E: GROUND STABILIZATION
GROUND STABILIZATION TIMELINES:
GROUND STABILIZATION SHALL BE ACHIEVED ON ANY AREA OF A SITE WHERE LAND DISTURBING ACTIVITIES
HAVE CEASED WITHIN THE TIMEFRAMES LISTED ON THE TABLE BELOW. IT IS RECOMMENDED TO STABILIZE
THE GROUND MORE QUICKLY IF PRACTICABLE. EXTENSIONS OF TIME MAY BE APPROVED BY THE E&SC PLAN
AUTHORITY BASED ON WEATHER OR OTHER SITE-SPECIFIC CONDITIONS THAT MAKE COMPLIANCE
IMPRACTICABLE. PORTIONS OF A SITE THAT ARE LOWER IN ELEVATION AND NOT EXPECTED TO DISCHARGE
DURING CONSTRUCTION MAY BE EXEMPT FROM THE TEMPORARY GROUND COVER REQUIREMENTS IF
IDENTIFIED ON THE E&SC PLAN AND APPROVED BY THE E&SC PLAN AUTHORITY.
NOTE: AFTER THE PERMANENT CESSATION OF CONSTRUCTION ACTIVITIES, ANY AREAS WITH TEMPORARY
GROUND STABILIZATION SHALL BE CONVERTED TO PERMANENT GROUND STABILIZATION AS SOON AS
PRACTICABLE BUT IN NO CASE LONGER THAN 90 CALENDAR DAYS AFTER THE LAST LAND DISTURBING
ACTIVITY. TEMPORARY GROUND STABILIZATION SHALL BE MAINTAINED IN A MANNER TO RENDER THE
SURFACE STABLE AGAINST ACCELERATED EROSION UNTIL PERMANENT GROUND STABILIZATION IS
ACHIEVED.
GROUND STABILIZATION SPECIFICATION:
STABILIZE THE GROUND SUFFICIENTLY SO THAT RAIN WILL NOT DISLODGE THE SOIL. USE ONE OF THE
TECHNIQUES IN THE TABLE BELOW:
NCG01 SECTION F: MATERIALS HANDLING
POLYACRYLAMIDES (PAMS) AND FLOCCULANTS:
1.SELECT FLOCCULANTS THAT ARE APPROPRIATE FOR THE SOILS BEING EXPOSED DURING
CONSTRUCTION, SELECTING FROM THE NC DWR LIST OF APPROVED PAMS/FLOCCULANTS.
2.APPLY FLOCCULANTS AT OR BEFORE THE INLETS TO EROSION AND SEDIMENT CONTROL MEASURES.
3.APPLY FLOCCULANTS AT THE CONCENTRATIONS SPECIFIED IN THE NC DWR LIST OF APPROVED
PAMS/FLOCCULANTS AND IN ACCORDANCE WITH THE MANUFACTURER'S INSTRUCTIONS.
4.PROVIDE PONDING AREA FOR CONTAINMENT OF TREATED STORMWATER BEFORE DISCHARGING
OFFSITE.
5.STORE FLOCCULANTS IN LEAK-PROOF CONTAINERS THAT ARE KEPT UNDER STORM-RESISTANT
COVER OR SURROUNDED BY SECONDARY CONTAINMENT STRUCTURES.
EQUIPMENT AND VEHICLE MAINTENANCE:
1.MAINTAIN VEHICLES AND EQUIPMENT TO PREVENT DISCHARGE OF FLUIDS.
2.PROVIDE DRIP PANS UNDER ANY STORED EQUIPMENT.
3.IDENTIFY LEAKS AND REPAIR AS SOON AS FEASIBLE, OR REMOVE LEAKING EQUIPMENT FROM THE
PROJECT.
4.COLLECT ALL SPENT FLUIDS, STORE IN SEPARATE CONTAINERS AND PROPERLY DISPOSE AS
HAZARDOUS WASTE (RECYCLE WHEN POSSIBLE).
5.REMOVE LEAKING VEHICLES AND CONSTRUCTION EQUIPMENT FROM SERVICE UNTIL THE PROBLEM
HAS BEEN CORRECTED.
6.BRING USED FUELS, LUBRICANTS, COOLANTS, HYDRAULIC FLUIDS AND OTHER PETROLEUM PRODUCTS
TO A RECYCLING OR DISPOSAL CENTER THAT HANDLES THESE MATERIALS.
LITTER, BUILDING MATERIAL, AND LAND CLEARING WASTE:
1.NEVER BURY OR BURN WASTE. PLACE LITTER AND DEBRIS IN APPROVED WASTE CONTAINERS.
2.PROVIDE A SUFFICIENT NUMBER AND SIZE OF WASTE CONTAINERS (E.G DUMPSTER, TRASH
RECEPTACLE) ON SITE TO CONTAIN CONSTRUCTION AND DOMESTIC WASTES.
3.LOCATE WASTE CONTAINERS AT LEAST 50 FEET AWAY FROM STORM DRAIN INLETS AND SURFACE
WATERS UNLESS NO OTHER ALTERNATIVES ARE REASONABLY AVAILABLE.
4.LOCATE WASTE CONTAINERS ON AREAS THAT DO NOT RECEIVE SUBSTANTIAL AMOUNTS OF RUNOFF
FROM UPLAND AREAS AND DOES NOT DRAIN DIRECTLY TO A STORM DRAIN, STREAM OR WETLAND.
5.COVER WASTE CONTAINERS AT THE END OF EACH WORKDAY AND BEFORE STORM EVENTS OR
PROVIDE SECONDARY CONTAINMENT. REPAIR OR REPLACE DAMAGED WASTE CONTAINERS.
6.ANCHOR ALL LIGHTWEIGHT ITEMS IN WASTE CONTAINERS DURING TIMES OF HIGH WINDS.
7.EMPTY WASTE CONTAINERS AS NEEDED TO PREVENT OVERFLOW. CLEAN UP IMMEDIATELY IF
CONTAINERS OVERFLOW.
8.DISPOSE WASTE OFF-SITE AT AN APPROVED DISPOSAL FACILITY.
9.ON BUSINESS DAYS, CLEAN UP AND DISPOSE OF WASTE IN DESIGNATED WASTE CONTAINERS.
PAINT AND OTHER LIQUID WASTE:
1.DO NOT DUMP PAINT AND OTHER LIQUID WASTE INTO STORM DRAINS, STREAMS OR WETLANDS.
2.LOCATE PAINT WASHOUTS AT LEAST 50 FEET AWAY FROM STORM DRAIN INLETS AND SURFACE
WATERS UNLESS NO OTHER ALTERNATIVES ARE REASONABLY AVAILABLE.
3.CONTAIN LIQUID WASTES IN A CONTROLLED AREA.
4.CONTAINMENT MUST BE LABELED, SIZED AND PLACED APPROPRIATELY FOR THE NEEDS OF SITE.
5.PREVENT THE DISCHARGE OF SOAPS, SOLVENTS, DETERGENTS AND OTHER LIQUID WASTES FROM
CONSTRUCTION SITES.
PORTABLE TOILETS:
1.INSTALL PORTABLE TOILETS ON LEVEL GROUND, AT LEAST 50 FEET AWAY FROM STORM DRAINS,
STREAMS OR WETLANDS UNLESS THERE IS NO ALTERNATIVE REASONABLY AVAILABLE. IF 50 FOOT
OFFSET IS NOT ATTAINABLE, PROVIDE RELOCATION OF PORTABLE TOILET BEHIND SILT FENCE OR
PLACE ON A GRAVEL PAD AND SURROUND WITH SAND BAGS.
2.PROVIDE STAKING OR ANCHORING OF PORTABLE TOILETS DURING PERIODS OF HIGH WINDS OR IN
HIGH FOOT TRAFFIC AREAS.
3.MONITOR PORTABLE TOILETS FOR LEAKING AND PROPERLY DISPOSE OF ANY LEAKED MATERIAL.
UTILIZE A LICENSED SANITARY WASTE HAULER TO REMOVE LEAKING PORTABLE TOILETS AND REPLACE
WITH PROPERLY OPERATING UNIT.
EARTHEN STOCKPILE MANAGEMENT:
1.SHOW STOCKPILE LOCATIONS ON PLANS. LOCATE EARTHEN-MATERIAL STOCKPILE AREAS AT LEAST 50
FEET AWAY FROM STORM DRAIN INLETS, SEDIMENT BASINS, PERIMETER SEDIMENT CONTROLS AND
SURFACE WATERS UNLESS IT CAN BE SHOWN NO OTHER ALTERNATIVES ARE REASONABLY AVAILABLE.
2.PROTECT STOCKPILE WITH SILT FENCE INSTALLED ALONG TOE OF SLOPE WITH A MINIMUM OFFSET OF
FIVE FEET FROM THE TOE OF STOCKPILE.
3.PROVIDE STABLE STONE ACCESS POINT WHEN FEASIBLE.
4.STABILIZE STOCKPILE WITHIN THE TIMEFRAMES PROVIDED ON THIS SHEET AND IN ACCORDANCE
WITH THE APPROVED PLAN AND ANY ADDITIONAL REQUIREMENTS. SOIL STABILIZATION IS DEFINED
AS VEGETATIVE, PHYSICAL OR CHEMICAL COVERAGE TECHNIQUES THAT WILL RESTRAIN ACCELERATED
EROSION ON DISTURBED SOILS FOR TEMPORARY OR PERMANENT CONTROL NEEDS.
HERBICIDES, PESTICIDES, AND RODENTICIDES:
1.STORE AND APPLY HERBICIDES, PESTICIDES AND RODENTICIDES IN ACCORDANCE WITH LABEL
RESTRICTIONS.
2.STORE HERBICIDES, PESTICIDES AND RODENTICIDES IN THEIR ORIGINAL CONTAINERS WITH THE LABEL,
WHICH LISTS DIRECTIONS FOR USE, INGREDIENTS AND FIRST AID STEPS IN CASE OF ACCIDENTAL
POISONING.
3.DO NOT STORE HERBICIDES, PESTICIDES AND RODENTICIDES IN AREAS WHERE FLOODING IS POSSIBLE
OR WHERE THEY MAY SPILL OR LEAK INTO WELLS, STORMWATER DRAINS, GROUND WATER OR
SURFACE WATER. IF A SPILL OCCURS, CLEAN AREA IMMEDIATELY.
4.DO NOT STOCKPILE THESE MATERIALS ONSITE.
HAZARDOUS AND TOXIC WASTE:
1.CREATE DESIGNATED HAZARDOUS WASTE COLLECTION AREAS ON-SITE.
2.PLACE HAZARDOUS WASTE CONTAINERS UNDER COVER OR IN SECONDARY CONTAINMENT.
3.DO NOT STORE HAZARDOUS CHEMICALS, DRUMS OR BAGGED MATERIALS DIRECTLY ON THE
GROUND.
CONCRETE WASHOUTS:
1.WHEN APPLICABLE, CONCRETE WASHOUT DETAIL WITH NOTES INCLUDED ON DETAIL DRAWING.
NCG01 - PART II, SECTION G: OPERATIONS AND MAINTENANCE
ITEM (4) DRAW DOWN OF SEDIMENT BASINS FOR MAINTENANCE OR CLOSE OUT:
SEDIMENT BASINS AND TRAPS THAT RECEIVE RUNOFF FROM DRAINAGE AREAS OF ONE ACRE OR MORE SHALL
USE OUTLET STRUCTURES THAT WITHDRAW WATER FROM THE SURFACE WHEN THESE DEVICES NEED TO BE
DRAWN DOWN FOR MAINTENANCE OR CLOSE OUT UNLESS THIS IS INFEASIBLE. THE CIRCUMSTANCES IN WHICH
IT IS NOT FEASIBLE TO WITHDRAW WATER FROM THE SURFACE SHALL BE RARE (FOR EXAMPLE, TIMES WITH
EXTENDED COLD WEATHER). NON-SURFACE WITHDRAWALS FROM SEDIMENT BASINS SHALL BE ALLOWED
ONLY WHEN ALL OF THE FOLLOWING CRITERIA HAVE BEEN MET:
A.THE E&SC PLAN AUTHORITY HAS BEEN PROVIDED WITH DOCUMENTATION OF THE NON-SURFACE
WITHDRAWAL AND THE SPECIFIC TIME PERIODS OR CONDITIONS IN WHICH IT WILL OCCUR. THE
NON-SURFACE WITHDRAWAL SHALL NOT COMMENCE UNTIL THE E&SC PLAN AUTHORITY HAS APPROVED
THESE ITEMS,
B.THE NON-SURFACE WITHDRAWAL HAS BEEN REPORTED AS AN ANTICIPATED BYPASS IN ACCORDANCE
WITH PART III, SECTION C, ITEM (2)(C) AND (D) OF THIS PERMIT,
C.DEWATERING DISCHARGES ARE TREATED WITH CONTROLS TO MINIMIZE DISCHARGES OF POLLUTANTS
FROM STORMWATER THAT IS REMOVED FROM THE SEDIMENT BASIN. EXAMPLES OF APPROPRIATE
CONTROLS INCLUDE PROPERLY SITED, DESIGNED AND MAINTAINED DEWATERING TANKS, WEIR TANKS,
AND FILTRATION SYSTEMS,
D.VEGETATED, UPLAND AREAS OF THE SITES OR A PROPERLY DESIGNED STONE PAD IS USED TO THE
EXTENT FEASIBLE AT THE OUTLET OF THE DEWATERING TREATMENT DEVICES DESCRIBED IN ITEM (C)
ABOVE,
E.VELOCITY DISSIPATION DEVICES SUCH AS CHECK DAMS, SEDIMENT TRAPS, AND RIPRAP ARE PROVIDED
AT THE DISCHARGE POINTS OF ALL DEWATERING DEVICES, AND
F.SEDIMENT REMOVED FROM THE DEWATERING TREATMENT DEVICES DESCRIBED IN ITEM (C) ABOVE IS
DISPOSED OF IN A MANNER THAT DOES NOT CAUSE DEPOSITION OF SEDIMENT INTO WATERS OF THE
UNITED STATES.
NCG01 - PART III, SELF-INSPECTION, RECORDKEEPING AND REPORTING
SECTION A: SELF-INSPECTION:
SELF-INSPECTIONS ARE REQUIRED DURING NORMAL BUSINESS HOURS IN ACCORDANCE WITH THE TABLE
BELOW. WHEN ADVERSE WEATHER OR SITE CONDITIONS WOULD CAUSE THE SAFETY OF THE INSPECTION
PERSONNEL TO BE IN JEOPARDY, THE INSPECTION MAY BE DELAYED UNTIL THE NEXT BUSINESS DAY ON WHICH
IT IS SAFE TO PERFORM THE INSPECTION. IN ADDITION, WHEN A STORM EVENT OF EQUAL TO OR GREATER
THAN 1.0 INCH OCCURS OUTSIDE OF NORMAL BUSINESS HOURS, THE SELF-INSPECTION SHALL BE PERFORMED
UPON THE COMMENCEMENT OF THE NEXT BUSINESS DAY. ANY TIME WHEN INSPECTIONS WERE DELAYED
SHALL BE NOTED IN THE INSPECTION RECORD.
NOTE: THE RAIN INSPECTION RESETS THE REQUIRED 7 CALENDAR DAY INSPECTION REQUIREMENT.
NCG01 - PART III, SELF-INSPECTION, RECORDKEEPING AND REPORTING
SECTION B: RECORDKEEPING:
1.E&SC PLAN DOCUMENTATION
THE APPROVED E&SC PLAN AS WELL AS ANY APPROVED DEVIATION SHALL BE KEPT ON THE SITE. THE
APPROVED E&SC PLAN MUST BE KEPT UP-TO-DATE THROUGHOUT THE COVERAGE UNDER THIS
PERMIT. THE FOLLOWING ITEMS PERTAINING TO THE E&SC PLAN SHALL BE KEPT ON SITE AND
AVAILABLE FOR INSPECTION AT ALL TIMES DURING NORMAL BUSINESS HOURS.
2.ADDITIONAL DOCUMENTATION TO BE KEPT ON SITE
IN ADDITION TO THE E&SC PLAN DOCUMENTS ABOVE, THE FOLLOWING ITEMS SHALL BE KEPT ON THE
SITE AND AVAILABLE FOR INSPECTORS AT ALL TIMES DURING NORMAL BUSINESS HOURS, UNLESS THE
DIVISION PROVIDES A SITE-SPECIFIC EXEMPTION BASED ON UNIQUE SITE CONDITIONS THAT MAKE
THIS REQUIREMENT NOT PRACTICAL:
(a)THIS GENERAL PERMIT AS WELL AS THE CERTIFICATE OF COVERAGE, AFTER IT IS RECEIVED.
(b)RECORDS OF INSPECTIONS MADE DURING THE PREVIOUS TWELVE MONTHS. THE PERMITTEE
SHALL RECORD THE REQUIRED OBSERVATIONS ON THE INSPECTION RECORD FORM PROVIDED BY
THE DIVISION OR A SIMILAR INSPECTION FORM THAT INCLUDES ALL THE REQUIRED ELEMENTS.
USE OF ELECTRONICALLY-AVAILABLE RECORDS IN LIEU OF THE REQUIRED PAPER COPIES WILL BE
ALLOWED IF SHOWN TO PROVIDE EQUAL ACCESS AND UTILITY AS THE HARD-COPY RECORDS.
3.DOCUMENTATION TO BE RETAINED FOR THREE YEARS
ALL DATA USED TO COMPLETE THE E-NOI AND ALL INSPECTION RECORDS SHALL BE MAINTAINED FOR
A PERIOD OF THREE YEARS AFTER PROJECT COMPLETION AND MADE AVAILABLE UPON REQUEST. [40
CFR 122.41]
NCG01 PART III SELF-INSPECTION, RECORDKEEPING AND REPORTING
SECTION C: REPORTING
1.OCCURRENCES THAT MUST BE REPORTED
PERMITTEES SHALL REPORT THE FOLLOWING OCCURRENCES:
(a.VISIBLE SEDIMENT DEPOSITION IN A STREAM OR WETLAND.
(b.OIL SPILLS IF:
● THEY ARE 25 GALLONS OR MORE,
● THEY ARE LESS THAN 25 GALLONS BUT CANNOT BE CLEANED UP WITHIN 24 HOURS,
● THEY CAUSE SHEEN ON SURFACE WATERS (REGARDLESS OF VOLUME), OR
● THEY ARE WITHIN 100 FEET OF SURFACE WATERS (REGARDLESS OF VOLUME).
(c.RELEASES OF HAZARDOUS SUBSTANCES IN EXCESS OF REPORTABLE QUANTITIES UNDER SECTION
311 OF THE CLEAN WATER ACT (REF: 40 CFR 110.3 AND 40 CFR 117.3) OR SECTION 102 OF CERCLA
(REF: 40 CFR 302.4) OR G.S. 143-215.85.
(d.ANTICIPATED BYPASSES AND UNANTICIPATED BYPASSES.
(e.NONCOMPLIANCE WITH THE CONDITIONS OF THIS PERMIT THAT MAY ENDANGER HEALTH OR
THE ENVIRONMENT.
2.REPORTING TIMEFRAMES AND OTHER REQUIREMENTS
AFTER A PERMITTEE BECOMES AWARE OF AN OCCURRENCE THAT MUST BE REPORTED, HE SHALL
CONTACT THE APPROPRIATE DIVISION REGIONAL OFFICE WITHIN THE TIMEFRAMES AND IN
ACCORDANCE WITH THE OTHER REQUIREMENTS LISTED BELOW. OCCURRENCES OUTSIDE NORMAL
BUSINESS HOURS MAY ALSO BE REPORTED TO THE DEPARTMENT'S ENVIRONMENTAL EMERGENCY
CENTER PERSONNEL AT [phone].
NCDEQ GROUND STABILIZATION AND MATERIALS HANDLING SAMPLE SHEET
(NCG01_DETAIL_3-29_19.DWG), EFFECTIVE 4/1/2019, REVISED 3/29/19.
NCDEQ INSPECTION, RECORDKEEPING AND REPORTING SAMPLE SHEET (NCG01-SELF-
INSPECTION-SHEET-REVISED-5-17-19.DWG), EFFECTIVE 4/1/2019, REVISED 5/17/19.
GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR
COMPLIANCE WITH THE NCG01 CONSTRUCTION GENERAL PERMIT
GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR
COMPLIANCE WITH THE NCG01 CONSTRUCTION GENERAL PERMIT
SELF-INSPECTION, RECORDKEEPING AND REPORTING FOR
COMPLIANCE WITH THE NCG01 CONSTRUCTION GENERAL PERMIT
REQUIRED GROUND STABILIZATION TIMEFRAMES
SITE AREA DESCRIPTION
STABILIZE WITHIN THIS
MANY CALENDAR DAYS
AFTER CEASING LAND
DISTURBANCE
TIMEFRAME VARIATIONS
(A) PERIMETER DIKES, SWALES,
DITCHES, AND PERIMETER
SLOPES
7 NONE
(B) HIGH QUALITY WATER
(HQW) ZONES 7 NONE
(C) SLOPES STEEPER THAN 3:1
7
IF SLOPES ARE 10' OR LESS IN
LENGTH AND ARE NOT STEEPER
THAN 2:1, 14 DAYS ARE ALLOWED
(D) SLOPES 3:1 TO 4:1
14
- 7 DAYS FOR SLOPES GREATER
THAN 50' IN LENGTH AND WITH
SLOPES STEEPER THAN 4:1
- 7 DAYS FOR PERIMETER DIKES,
SWALES, DITCHES, PERIMETER
SLOPES AND HQW ZONES
- 10 DAYS FOR FALLS LAKE
WATERSHED
(E) AREAS WITH SLOPES
FLATTER THAN 4:1
14
- 7 DAYS FOR PERIMETER DIKES,
SWALES, DITCHES, PERIMETER
SLOPES AND HQW ZONES
- 10 DAYS FOR FALLS LAKE
WATERSHED UNLESS THERE IS ZERO
SLOPE
TEMPORARY STABILIZATION PERMANENT STABILIZATION
● TEMPORARY GRASS SEED COVERED WITH STRAW
OR OTHER MULCHES AND TACKIFIERS
● HYDROSEEDING
● ROLLED EROSION CONTROL PRODUCTS WITH OR
WITHOUT TEMPORARY GRASS SEED
● APPROPRIATELY APPLIED STRAW OR OTHER
MULCH
● PLASTIC SHEETING
● PERMANENT GRASS SEED COVERED WITH STRAW
OR OTHER MULCHES AND TACKIFIERS
● GEOTEXTILE FABRICS SUCH AS PERMANENT SOIL
REINFORCEMENT MATTING
● HYDROSEEDING
- SHRUBS OR OTHER PERMANENT PLANTING
COVERED WITH MULCH
● UNIFORM AND EVENLY DISTRIBUTED GROUND
COVER SUFFICIENT TO RESTRAIN EROSION
● STRUCTURAL METHODS SUCH AS CONCRETE,
ASPHALT OR RETAINING WALLS
● ROLLED EROSION CONTROL PRODUCTS WITH
GRASS SEED
INSPECT
FREQUENCY
(DURING NORMAL
BUSINESS HOURS)
INSPECTION RECORDS MUST INCLUDE:
(1) RAIN GAUGE
MAINTAINED IN
GOOD WORKING
ORDER
DAILY DAILY RAINFALL AMOUNTS. IF NO DAILY RAIN GAUGE
OBSERVATIONS ARE MADE DURING WEEKEND OR
HOLIDAY PERIODS, AND NO INDIVIDUAL-DAY
RAINFALL INFORMATION IS AVAILABLE, RECORD THE
CUMULATIVE RAIN MEASUREMENT FOR THOSE
UN-ATTENDED DAYS (AND THIS WILL DETERMINE IF A
SITE INSPECTION IS NEEDED). DAYS ON WHICH NO
RAINFALL OCCURRED SHALL BE RECORDED AS “ZERO.”
THE PERMITTEE MAY USE ANOTHER
RAIN-MONITORING DEVICE APPROVED BY THE
DIVISION.
(2) E&SC
MEASURES
AT LEAST ONCE PER 7
CALENDAR DAYS AND
WITHIN 24 HOURS OF A
RAIN EVENT > 1.0 INCH IN
24 HOURS
1. IDENTIFICATION OF THE MEASURES INSPECTED,
2. DATE AND TIME OF THE INSPECTION,
3. NAME OF THE PERSON PERFORMING THE
INSPECTION,
4. INDICATION OF WHETHER THE MEASURES WERE
OPERATING PROPERLY,
5. DESCRIPTION OF MAINTENANCE NEEDS FOR THE
MEASURE,
6. DESCRIPTION, EVIDENCE, AND DATE OF CORRECTIVE
ACTIONS TAKEN.
(3) STORMWATER
DISCHARGE
OUTFALLS (SDC'S)
AT LEAST ONCE PER 7
CALENDAR DAYS AND
WITHIN 24 HOURS OF A
RAIN EVENT > 1.0 INCH IN
24 HOURS
1. IDENTIFICATION OF THE DISCHARGE OUTFALLS
INSPECTED,
2. DATE AND TIME OF THE INSPECTION,
3. NAME OF THE PERSON PERFORMING THE
INSPECTION,
4. EVIDENCE OF INDICATORS OF STORMWATER
POLLUTION SUCH AS OIL SHEEN, FLOATING OR
SUSPENDED SOLIDS OR DISCOLORATION,
5. INDICATION OF VISIBLE SEDIMENT LEAVING THE SITE,
6. DESCRIPTION, EVIDENCE, AND DATE OF CORRECTIVE
ACTIONS TAKEN.
(4) PERIMETER OF
SITE
AT LEAST ONCE PER 7
CALENDAR DAYS AND
WITHIN 24 HOURS OF A
RAIN EVENT > 1.0 INCH IN
24 HOURS
IF VISIBLE SEDIMENTATION IS FOUND OUTSIDE SITE
LIMITS, THEN A RECORD OF THE FOLLOWING SHALL BE
MADE:
1. ACTIONS TAKEN TO CLEAN UP OR STABILIZE THE
SEDIMENT THAT HAS LEFT THE SITE LIMITS,
2. DESCRIPTION, EVIDENCE, AND DATE OF CORRECTIVE
ACTIONS TAKEN, AND
3. AN EXPLANATION AS TO THE ACTIONS TAKEN TO
CONTROL FUTURE RELEASES.
(5) STREAMS OR
WETLANDS ONSITE
OR OFFSITE
(WHERE
ACCESSIBLE)
AT LEAST ONCE PER 7
CALENDAR DAYS AND
WITHIN 24 HOURS OF A
RAIN EVENT > 1.0 INCH IN
24 HOURS
IF THE STREAM OR WETLAND HAS INCREASED VISIBLE
SEDIMENTATION OR A STREAM HAS VISIBLE
INCREASED TURBIDITY FROM THE CONSTRUCTION
ACTIVITY, THEN A RECORD OF THE FOLLOWING SHALL
BE MADE:
1. DESCRIPTION, EVIDENCE AND DATE OF CORRECTIVE
ACTIONS TAKEN, AND
2. RECORDS OF THE REQUIRED REPORTS TO THE
APPROPRIATE DIVISION REGIONAL OFFICE PER PART III,
SECTION C, ITEM (2)(A) OF THIS PERMIT.
(6) GROUND
STABILIZATION
MEASURES
AFTER EACH PHASE OF
GRADING
1. THE PHASE OF GRADING (INSTALLATION OF
PERIMETER E&SC MEASURES, CLEARING AND
GRUBBING, INSTALLATION OF STORM DRAINAGE
FACILITIES, COMPLETION OF ALL LAND-DISTURBING
ACTIVITY, CONSTRUCTION OR REDEVELOPMENT,
PERMANENT GROUND COVER).
2. DOCUMENTATION THAT THE REQUIRED GROUND
STABILIZATION MEASURES HAVE BEEN PROVIDED
WITHIN THE REQUIRED TIMEFRAME OR AN ASSURANCE
THAT THEY WILL BE PROVIDED AS SOON AS POSSIBLE.
ITEM TO DOCUMENT DOCUMENTATION REQUIREMENTS
(A) EACH E&SC MEASURE HAS BEEN
INSTALLED AND DOES NOT
SIGNIFICANTLY DEVIATE FROM THE
LOCATIONS, DIMENSIONS AND RELATIVE
ELEVATIONS SHOWN ON THE APPROVED
E&SC PLAN.
INITIAL AND DATE EACH E&SC MEASURE ON A COPY OF THE
APPROVED E&SC PLAN OR COMPLETE, DATE AND SIGN AN
INSPECTION REPORT THAT LISTS EACH E&SC MEASURE
SHOWN ON THE APPROVED E&SC PLAN. THIS
DOCUMENTATION IS REQUIRED UPON THE INITIAL
INSTALLATION OF THE E&SC MEASURES OR IF THE E&SC
MEASURES ARE MODIFIED AFTER INITIAL INSTALLATION.
(B) A PHASE OF GRADING HAS BEEN
COMPLETED.
INITIAL AND DATE A COPY OF THE APPROVED E&SC PLAN OR
COMPLETE, DATE AND SIGN AN INSPECTION REPORT TO
INDICATE COMPLETION OF THE CONSTRUCTION PHASE.
(C) GROUND COVER IS LOCATED AND
INSTALLED IN ACCORDANCE WITH THE
APPROVED E&SC PLAN.
INITIAL AND DATE A COPY OF THE APPROVED E&SC PLAN OR
COMPLETE, DATE AND SIGN AN INSPECTION REPORT TO
INDICATE COMPLIANCE WITH APPROVED GROUND COVER
SPECIFICATIONS.
(D) THE MAINTENANCE AND REPAIR
REQUIREMENTS FOR ALL E&SC MEASURES
HAVE BEEN PERFORMED.
COMPLETE, DATE AND SIGN AN INSPECTION REPORT.
(E) CORRECTIVE ACTIONS HAVE BEEN
TAKEN TO E&SC MEASURES.
INITIAL AND DATE A COPY OF THE APPROVED E&SC PLAN OR
COMPLETE, DATE AND SIGN AN INSPECTION REPORT TO
INDICATE THE COMPLETION OF THE CORRECTIVE ACTION.
OCCURRENCE REPORTING TIMEFRAMES (AFTER DISCOVERY) AND
OTHER REQUIREMENTS
(A) VISIBLE SEDIMENT DEPOSITION IN A
STREAM OR WETLAND
· WITHIN 24 HOURS, AN ORAL OR ELECTRONIC NOTIFICATION.
· WITHIN 7 CALENDAR DAYS, A REPORT THAT CONTAINS A DESCRIPTION
OF THE SEDIMENT AND ACTIONS TAKEN TO ADDRESS THE CAUSE OF THE
DEPOSITION. DIVISION STAFF MAY WAIVE THE REQUIREMENT FOR A
WRITTEN REPORT ON A CASE-BY-CASE BASIS.
· IF THE STREAM IS NAMED ON THE NC 303(D) LIST AS IMPAIRED FOR
SEDIMENT-RELATED CAUSES, THE PERMITTEE MAY BE REQUIRED TO
PERFORM ADDITIONAL MONITORING, INSPECTIONS OR APPLY MORE
STRINGENT PRACTICES IF STAFF DETERMINE THAT ADDITIONAL
REQUIREMENTS ARE NEEDED TO ASSURE COMPLIANCE WITH THE
FEDERAL OR STATE IMPAIRED-WATERS CONDITIONS
(B) OIL SPILLS AND RELEASE OF
HAZARDOUS SUBSTANCES PER ITEM
1(B)-(C) ABOVE
WITHIN 24 HOURS, AN ORAL OR ELECTRONIC NOTIFICATION. THE
NOTIFICATION SHALL INCLUDE INFORMATION ABOUT THE DATE, TIME,
NATURE, VOLUME AND LOCATION OF THE SPILL OR RELEASE.
(C) ANTICIPATED BYPASSES [40 CFR
122.41(M)(3)]
A REPORT AT LEAST TEN DAYS BEFORE THE DATE OF THE BYPASS, IF
POSSIBLE. THE REPORT SHALL INCLUDE AN EVALUATION OF THE
ANTICIPATED QUALITY AND EFFECT OF THE BYPASS.
(D) UNANTICIPATED BYPASSES [40 CFR
122.41(M)(3)]
· WITHIN 24 HOURS, AN ORAL OR ELECTRONIC NOTIFICATION.
· WITHIN 7 CALENDAR DAYS, A REPORT THAT INCLUDES AN EVALUATION
OF THE QUALITY AND EFFECT OF THE BYPASS.
(E) NONCOMPLIANCE WITH THE
CONDITIONS OF THIS PERMIT THAT MAY
ENDANGER HEALTH OR THE
ENVIRONMENT[40 CFR 122.41(L)(7)]
· WITHIN 24 HOURS, AN ORAL OR ELECTRONIC NOTIFICATION.
· WITHIN 7 CALENDAR DAYS, A REPORT THAT CONTAINS A DESCRIPTION
OF THE NONCOMPLIANCE, AND ITS CAUSES; THE PERIOD OF
NONCOMPLIANCE, INCLUDING EXACT DATES AND TIMES, AND IF THE
NONCOMPLIANCE HAS NOT BEEN CORRECTED, THE ANTICIPATED TIME
NONCOMPLIANCE IS EXPECTED TO CONTINUE; AND STEPS TAKEN OR
PLANNED TO REDUCE, ELIMINATE, AND PREVENT REOCCURRENCE OF THE
NONCOMPLIANCE. [40 CFR 122.41(L)(6).
· DIVISION STAFF MAY WAIVE THE REQUIREMENT FOR A WRITTEN
REPORT ON A CASE-BY-CASE BASIS.
REFERENCE:REFERENCE:
2016 AYRSLEY TOWN BLVD.
SUITE 2-A
CHARLOTTE, NC 28273
[phone]
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PREPARED BY/UNDER:
JOSHUA M. BELL
NCDOT LEVEL III
CERTIFICATION NO. 3366
DRAWING NUMBER
PROJECT NUMBER
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ENGINEERING FIRM
LICENSE NUMBER: F-0176
2016 AYRSLEY TOWN BLVD.
SUITE 2-A
CHARLOTTE, NC 28273
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GENERAL SEEDING SPECIFICATIONS GENERAL RIPARIAN SEEDING REQUIREMENTS
NATIVE RIPARIAN SEED SPECIFICATIONS
SEEDING MIXTURE
SPECIES COMMON NAME PERCENTAGE OF MIX
ELYMUS VIRGINICUS VIRGINIA WILD RYE 20
PANICUM VIRGATUM SWITCHGRASS 15
AGROSTIS PERENNANS AUTUMN BENTGRASS 15
RUDBECKIA HIRTA BLACK-EYED SUSAN (NC
ECOTYPE)10
COREOPSIS LANCEOLATA LANCE LEAF COREOPSIS 10
ANDROPOGON GERARDII BIG BLUESTEM 10
JUNCUS EFFUSUS SOFT RUSH (NC ECOTYPE)5
SCHIZACHYRIUM SCOPARIUM LITTLE BLUESTEM 5
SORGHASTRUM NUTANS INDIAN GRASS 5
TRIPSACUM DACTYLOIDES EASTERN GAMMA 5
Total 100
NOTE: THE RECOMMENDED APPLICATION RATE FOR THE RIPARIAN SEED MIXTURE ABOVE IS 20
TO 25-LBS PER ACRE. APPLY SEED MIXTURE TO DISTURBED UPLAND RIPARIAN AREAS,
EXTENDING 50-FEET LANDWARD.
SOIL AMENDMENTS
A ONE TIME APPLICATION OF SOIL AMMENDMENTS MAY BE APPLIED WITHIN RIPARIAN AREAS
AS PER THE GENERAL SEEDING SPECIFICATIONS. SOIL AMENDMENTS ARE NOT TO BE APPLIED
IN WETLAND AREAS.
MULCH
MULCH MAY BE APPLIED WITHIN RIPARIAN AREAS AS PER THE GENERAL SEEDING
SPECIFICATIONS. MULCH IS NOT TO BE APPLIED IN WETLAND AREAS.
MAINTENANCE
RESEED/OVER SEED IF GROWTH IS NOT FULLY ADEQUATE.
GROUND STABILIZATION SHALL BE PERFORMED PER TIME FRAMES OUTLINED IN GENERAL
SEEDING SPECIFICATIONS.
NATIVE RIPARIAN SEED
COVER/COMPANION CROPS
SPECIES COMMON NAME SEASON MIX NOTES
SECALE CEREALE CEREAL OR
WINTER RYE
EARLY SPRING
OR FALL
30 LBS/ACRE GROWS 3-4' TALL, BUT
NOT A STRONG A
COMPETITOR.
LOLIUM
PERENNE
PERENNIAL RYE EARLY FALL OR
SPRING
20-50%SHORTER RYE; LASTS
ABOUT 2 YEARS, THEN
DIES OUT.
UROCLOA
RAMOSE
BROWN TOP
MILLET
SPRING,
SUMMER
20-50%GOOD GERMINATION;
DIES OFF WITH FROST;
DOES NOT TOLERATE
MOWING.
SEEDING AND MULCHING
THE KINDS OF SEED AND FERTILIZER, AND THE RATES OF APPLICATION OF SEED, FERTILIZER,
AND LIMESTONE, SHALL BE AS STATED BELOW. DURING PERIODS OF OVERLAPPING DATES,
THE KIND OF SEED TO BE USED SHALL BE DETERMINED. ALL RATES ARE IN POUNDS PER
ACRE.
ALL ROADWAY AREAS
MARCH 1 - AUGUST 31 SEPTEMBER 1 - FEBRUARY 28
50 TALL FESCUE 50 TALL FESCUE
10 CENTIPEDE 10 CENTIPEDE
25 BERMUDA GRASS (HULLED)35 BERMUDA GRASS (UNHULLED)
500 FERTILIZER 500 FERTILIZER
4000 LIMESTONE 4000 LIMESTONE
WASTE AND BORROW AREAS
MARCH 1 - AUGUST 31 SEPTEMBER 1 - FEBRUARY 28
75 TALL FESCUE 75 TALL FESCUE
25 BERMUDA GRASS (HULLED)35 BERMUDA GRASS (UNHULLED)
500 FERTILIZER 500 FERTILIZER
4000 LIMESTONE 4000 LIMESTONE
NOTE 50 POUNDS OF BAHIA GRASS MAY BE SUBSTITUTED FOR EITHER CENTIPEDE OR
BERMUDA GRASS ONLY UPON ENGINEER'S REQUEST.
FERTILIZER SHALL BE 10-20-20 ANALYSIS. A DIFFERENT ANALYSIS OF FERTILIZER MAY BE
USED PROVIDED THE 1-2-2 RATIO IS MAINTAINED AND THE RATE OF APPLICATION
ADJUSTED TO PROVIDE THE SAME AMOUNT OF PLANT FOOD AS A 10-20-20 ANALYSIS AND
AS DIRECTED.
TEMPORARY SEEDING
FERTILIZER SHALL BE THE SAME ANALYSIS AS SPECIFIED FOR SEEDING AND MULCHING AND
APPLIED AT THE RATE OF 400 POUNDS AND SEEDED AT THE RATE OF 50 POUNDS PER ACRE.
SWEET SUDAN GRASS, GERMAN MILLET OR BROWNTOP MILLET SHALL BE USED IN SUMMER
MONTHS AND RYE GRAIN DURING THE REMAINDER OF THE YEAR. THE ENGINEER WILL
DETERMINE THE EXACT DATES FOR USING EACH KIND OF SEED.
FERTILIZER TOPDRESSING
FERTILIZER USED FOR TOPDRESSING ON ALL ROADWAY AREAS EXCEPT SLOPES 2:1 AND
STEEPER SHALL BE 10-20-20 GRADE AND SHALL BE APPLIED AT THE RATE OF 500 POUNDS
PER ACRE. A DIFFERENT ANALYSIS OF FERTILIZER MAY BE USED PROVIDED THE 1-2-2 RATIO
IS MAINTAINED AND THE RATE OF APPLICATION ADJUSTED TO PROVIDE THE SAME
AMOUNT OF PLANT FOOD AS 10-20-20 ANALYSIS AND AS DIRECTED.
FERTILIZER USED FOR TOPDRESSING ON SLOPES 2:1 AND STEEPER AND WASTE AND
BORROW AREAS SHALL BE 16-8-8 GRADE AND SHALL BE APPLIED AT THE RATE OF 500
POUNDS PER ACRE. A DIFFERENT ANALYSIS OF FERTILIZER MAY BE USED PROVIDED THE
2-1-1 RATIO IS MAINTAINED AND THE RATE OF APPLICATION ADJUSTED TO PROVIDE THE
SAME AMOUNT OF PLANT FOOD AS 16-8-8 ANALYSIS AND AS DIRECTED.
SUPPLEMENTAL SEEDING
THE KINDS OF SEED AND PROPORTIONS SHALL BE THE SAME AS SPECIFIED FOR SEEDING
AND MULCHING, WITH THE EXCEPTION THAT NO CENTIPEDE SEED WILL BE USED IN THE
SEED MIX FOR SUPPLEMENTAL SEEDING. THE RATE OF APPLICATION FOR SUPPLEMENTAL
SEEDING MAY VARY FROM 25# TO 75# PER ACRE. THE ACTUAL RATE PER ACRE WILL BE
DETERMINED PRIOR TO THE TIME OF TOPDRESSING AND THE CONTRACTOR WILL BE
NOTIFIED IN WRITING OF THE RATE PER ACRE, TOTAL QUANTITY NEEDED, AND AREAS ON
WHICH TO APPLY THE SUPPLEMENTAL SEED. MINIMUM TILLAGE EQUIPMENT, CONSISTING
OF A SOD SEEDER SHALL BE USED FOR INCORPORATING SEED INTO THE SOIL AS TO
PREVENT DISTURBANCE OF EXISTING VEGETATION. A CLODBUSTER (BALL AND CHAIN) MAY
BE USED WHERE DEGREE OF SLOPE PREVENTS THE USE OF A SOD SEEDER.
SEEDBED REQUIREMENTS
ESTABLISHMENT OF VEGETATION SHOULD NOT BE ATTEMPTED ON SITES THAT ARE
UNSUITABLE DUE TO EXCESSIVE SOIL COMPACTION, INAPPROPRIATE SOIL TEXTURE, POOR
DRAINAGE, CONCENTRATED OVERLAND FLOW, OR STEEPNESS OF SLOPE UNTIL MEASURES
HAVE BEEN TAKEN TO CORRECT THESE PROBLEMS.
TO MAINTAIN A GOOD STAND OF VEGETATION, THE SOIL MUST MEET CERTAIN MINIMUM
REQUIREMENTS AS A GROWTH MEDIUM. THE EXISTING SOIL SHOULD HAVE THESE CRITERIA:
·ENOUGH FINE-GRAINED (SILT AND CLAY) MATERIAL TO MAINTAIN ADEQUATE
MOISTURE AND NUTRIENT SUPPLY (AVAILABLE WATER CAPACITY OF AT LEAST .05-IN.
WATER TO 1-IN. OF SOIL).
·SUFFICIENT PORE SPACE TO PERMIT ROOT PENETRATION.
·SUFFICIENT DEPTH OF SOIL TO PROVIDE AN ADEQUATE ROOT ZONE. THE DEPTH TO
ROCK OR IMPERMEABLE LAYERS SUCH AS HARDPANS SHOULD BE 12-IN. OR MORE,
EXCEPT ON SLOPES STEEPER THAN 2:1 WHERE THE ADDITION OF SOIL IS NOT FEASIBLE.
·A FAVORABLE PH RANGE FOR PLANT GROWTH, USUALLY 6.0 - 6.5.
·FREE FROM LARGE ROOTS, BRANCHES, STONES, LARGE CLODS OF EARTH, OR TRASH OF
ANY KIND. CLODS AND STONES MAY BE LEFT ON SLOPES STEEPER THAN 3:1 IF THEY
ARE TO BE HYDRO SEEDED.
IF ANY OF THESE CRITERIA ARE NOT MET - I.E., IF EXISTING SOIL IS TOO COARSE, DENSE,
SHALLOW OR ACIDIC TO FOSTER VEGETATION - SPECIAL AMENDMENTS ARE REQUIRED. THE
SOIL CONDITIONERS DESCRIBED BELOW MAY BE BENEFICIAL OR, PREFERABLY, TOPSOIL MAY
BE APPLIED.
SEEDBED PREPARATION
INSTALL NECESSARY MECHANICAL EROSION AND SEDIMENTATION CONTROL PRACTICES
BEFORE SEEDING, AND COMPLETE GRADING ACCORDING TO THE APPROVED PLAN.
LIME AND FERTILIZER NEEDS SHOULD BE DETERMINED BY SOIL TESTS. DIRECTIONS, SAMPLE
CARTONS, AND INFORMATION SHEETS ARE AVAILABLE THROUGH COUNTY AGRICULTURAL
EXTENSION OFFICES. TESTING IS ALSO DONE BY COMMERCIAL LABORATORIES.
WHEN SOIL TESTS RESULTS ARE NOT AVAILABLE, FOLLOW RATES SUGGESTED IN THE
SEEDING SPECIFICATIONS TABLES.
APPLY LIME AND FERTILIZER EVENLY AND INCORPORATE INTO THE TOP 4-6-IN. OF SOIL BY
DISKING OR OTHER SUITABLE MEANS. OPERATE MACHINERY ON THE CONTOUR. WHEN
USING A HYDRO SEEDER, APPLY LIME AND FERTILIZER TO A ROUGH, LOOSE SURFACE.
ROUGHEN SURFACES PRIOR TO SEEDING.
COMPLETE SEEDBED PREPARATION BY BREAKING UP LARGE CLODS AND RAKING INTO A
SMOOTH, UNIFORM SURFACE (SLOPES LESS THAN 3:1). FILL IN OR LEVEL DEPRESSIONS
THAT CAN COLLECT WATER. BROADCAST SEED INTO A FRESHLY LOOSENED SEEDBED THAT
HAS NOT BEEN SEALED BY RAINFALL.
SEEDING
SEEDING DATES GIVEN IN THE SEEDING MIXTURE SPECIFICATIONS ARE CONSIDERED TO BE
"BEST" OR "POSSIBLE". SEEDINGS PROPERLY CARRIED OUT WITHIN THE DATE RANGES
GIVEN HAVE A HIGH PROBABILITY OF SUCCESS. IT IS ALSO POSSIBLE TO HAVE
SATISFACTORY ESTABLISHMENT WHEN SEEDING OUTSIDE THESE DATES. HOWEVER, AS YOU
DEVIATE FROM THEM, THE PROBABILITY OF FAILURE INCREASES RAPIDLY. SEEDING ON THE
LAST DATE SHOWN MAY REDUCE CHANCES OF SUCCESS BY 30-50%. ALWAYS TAKE THIS
INTO ACCOUNT IN SCHEDULING LAND-DISTURBING ACTIVITIES.
USE CERTIFIED SEED FOR PERMANENT SEEDING.
LABELING OF NON-CERTIFIED SEED IS ALSO REQUIRED BY LAW. LABELS CONTAIN
IMPORTANT INFORMATION ON SEED PURITY, GERMINATION, AND PRESENCE OF WOOD
SEEDS. SEEDS MUST MEET STATE STANDARDS FOR CONTENT OF NOXIOUS WEEDS. DO NOT
ACCEPT SEED CONTAINING "PROHIBITED" NOXIOUS WEED SEED.
INOCULATE LEGUME SEED WITH THE RHIZOBIUM BACTERIA APPROPRIATE TO THE SPECIES
OF LEGUME.
APPLY SEED UNIFORMLY WITH A CYCLONE SEEDER, DROP-TYPE SPREADER, DRILL,
CULTIPACKER SEEDER, OR HYDRO SEEDER ON A FIRM, FRIABLE SEEDBED.
WHEN USING A DRILL OR CULTIPACKER SEEDER, PLANT SMALL GRAINS NO MORE THAN 1
INCH DEEP, GRASSES AND LEGUMES NO MORE THAN 1/2-IN. EQUIPMENT SHOULD BE
CALIBRATED IN THE FIELD FOR THE DESIRED SEEDING RATE.
WHEN USING BROADCAST-SEEDING METHODS, SUBDIVIDE THE AREA INTO WORKABLE
SECTIONS AND DETERMINE THE AMOUNT OF SEED NEEDED FOR EACH SECTION. APPLY
ONE-HALF THE SEED WHILE MOVING BACK AND FORTH ACROSS THE AREA, MAKING A
UNIFORM PATTERN: THEN APPLY THE SECOND HALF IN THE SAME WAY, BUT MOVING AT
RIGHT ANGLES TO THE FIRST PASS.
MULCH ALL PLANTINGS IMMEDIATELY AFTER SEEDING.
HYDRO SEEDING
SURFACE ROUGHENING IS PARTICULARLY IMPORTANT WHEN HYDRO SEEDING, AS A
ROUGHENED SLOPE WILL PROVIDE SOME NATURAL COVERAGE FOR LIME, FERTILIZER, AND
SEED. THE SURFACE SHOULD NOT BE COMPACTED OR SMOOTH. FINE SEEDBED
PREPARATION IS NOT NECESSARY FOR HYDRO SEEDING OPERATIONS: LARGE CLODS,
STONES, AND IRREGULARITIES PROVIDE CAVITIES IN WHICH SEEDS CAN LODGE.
RATE OF WOOD FIBER (CELLULOSE) APPLICATION SHOULD BE AT LEAST 4,000 LB/ACRE.
APPLY LEGUME INOCULANTS AT FOUR TIMES THE RECOMMENDED RATE WHEN ADDING
INOCULANT TO A HYDRO SEEDER SLURRY.
IF A MACHINERY BREAKDOWN OF 1/2 TO 2 HOURS OCCURS, ADD 50% MORE SEED TO THE
TANK, BASED ON THE PROPORTION OF THE SLURRY REMAINING. THIS SHOULD
COMPENSATE FOR DAMAGE TO SEED. BEYOND 2 HOURS, A FULL RATE OF NEW SEED MAY
BE NECESSARY.
LIME IS NOT NORMALLY APPLIED WITH A HYDRAULIC SEEDER BECAUSE IT IS ABRASIVE. IT
CAN BE BLOWN ONTO STEEP SLOPES IN DRY FORM.
MAINTENANCE
GENERALLY, A STAND OF VEGETATION CANNOT BE DETERMINED TO BE FULLY ESTABLISHED
UNTIL SOIL COVER HAS BEEN MAINTAINED FOR ONE FULL YEAR FROM PLANTING. INSPECT
SEEDED AREAS FOR FAILURE AND MAKE NECESSARY REPAIRS AND RESEEDINGS WITHIN THE
SAME SEASON, IF POSSIBLE.
RESEEDING--IF A STAND HAS INADEQUATE COVER, RE-EVALUATE CHOICE OF PLANT
MATERIALS AND QUANTITIES OF LIME AND FERTILIZER. RE-ESTABLISH THE STAND AFTER
SEEDBED PREPARATION OR OVER- SEED THE STAND. CONSIDER SEEDING TEMPORARY,
ANNUAL SPECIES IF THE TIME OF YEAR IS NOT APPROPRIATE FOR PERMANENT SEEDING.
IF VEGETATION FAILS TO GROW, SOIL MUST BE TESTED TO DETERMINE IF ACIDITY OR
NUTRIENT IMBALANCE IS RESPONSIBLE.
FERTILIZATION--ON THE TYPICAL DISTURBED SITE, FULL ESTABLISHMENT USUALLY REQUIRES
RE-FERTILIZATION IN THE SECOND GROWING SEASON. FINE TURF REQUIRES ANNUAL
MAINTENANCE FERTILIZATION. USE SOIL TESTS IF POSSIBLE OR FOLLOW THE GUIDELINES
GIVEN FOR THE SPECIFIC SEEDING MIXTURE.
DEFINITION
CONTROLLING RUNOFF AND EROSION ON DISTURBED RIPARIAN AREAS BY ESTABLISHING
PERENNIAL VEGETATIVE COVER WITH NATIVE RIPARIAN SEED.
PURPOSE
TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS, AND TO
PERMANENTLY STABILIZE SUCH AREAS IN A MANNER THAT IS ECONOMICAL, ADAPTS TO
SITE CONDITIONS, AND ALLOWS SELECTION OF THE MOST APPROPRIATE PLANT MATERIALS.
SEEDBED REQUIREMENTS
TO MAINTAIN A GOOD STAND OF RIPARIAN VEGETATION, THE SOIL MUST BE THE TOPSOIL
THAT HAS BEEN STOCKPILED DURING THE GRADING AND EXCAVATION OPERATIONS. THIS
TOPSOIL SHOULD ALSO HAVE THESE CRITERIA:
·ENOUGH FINE-GRAINED (SILT AND CLAY) MATERIAL TO MAINTAIN ADEQUATE
MOISTURE AND NUTRIENT SUPPLY (AVAILABLE WATER CAPACITY OF AT LEAST .05-IN.
WATER TO 1-IN. OF SOIL).
·SUFFICIENT PORE SPACE TO PERMIT ROOT PENETRATION.
·SUFFICIENT DEPTH OF SOIL TO PROVIDE AN ADEQUATE ROOT ZONE. THE DEPTH TO
ROCK OR IMPERMEABLE LAYERS SUCH AS HARDPANS SHOULD BE 12-IN. OR MORE,
EXCEPT ON SLOPES STEEPER THAN 2:1 WHERE THE ADDITION OF SOIL IS NOT FEASIBLE.
·A FAVORABLE PH RANGE FOR PLANT GROWTH, USUALLY 6.0 - 6.5.
·FREE FROM LARGE ROOTS, BRANCHES, STONES, LARGE CLODS OF EARTH, OR TRASH OF
ANY KIND. CLODS AND STONES MAY BE LEFT ON SLOPES STEEPER THAN 3:1 IF THEY
ARE TO BE HYDRO SEEDED.
·IF ANY OF THE ABOVE CRITERIA ARE NOT MET - I.E., IF EXISTING SOIL IS TOO COARSE,
DENSE, SHALLOW OR ACIDIC TO FOSTER VEGETATION - A ONE TIME APPLICATION OF
SPECIAL AMENDMENTS ARE ALLOWED. HOWEVER, FERTILIZER MUST NOT OCCUR
WITHIN 10-FT. OF TOP OF BANK OR COME IN CONTACT WITH WATER. THE SOIL
CONDITIONERS DESCRIBED BELOW MAY BE BENEFICIAL OR, PREFERABLY, TOPSOIL MAY
BE APPLIED.
SEEDBED PREPARATION
INSTALL NECESSARY EROSION AND SEDIMENTATION CONTROL PRACTICES BEFORE
SEEDING, AND COMPLETE GRADING ACCORDING TO THE APPROVED PLAN.
ROUGHEN RIPARIAN SURFACES BY DISKING, RAKING, HARROWING, OR OTHER SUITABLE
METHODS PRIOR TO SEEDING.
COMPLETE SEEDBED PREPARATION BY BREAKING UP LARGE CLODS AND RAKING INTO A
SMOOTH, UNIFORM SURFACE. BROADCAST SEED INTO A FRESHLY LOOSENED SEEDBED
THAT HAS NOT BEEN SEALED BY RAINFALL.
SEEDING
USE CERTIFIED SEED FOR NATIVE RIPARIAN SEEDING.
LABELING OF NON-CERTIFIED SEED IS ALSO REQUIRED BY LAW. LABELS CONTAIN
IMPORTANT INFORMATION ON SEED PURITY, GERMINATION, AND PRESENCE OF WOOD
SEEDS. SEEDS MUST MEET STATE STANDARDS FOR CONTENT OF NOXIOUS WEEDS. DO NOT
ACCEPT SEED CONTAINING "PROHIBITED" NOXIOUS WEED SEED.
APPLY SEED UNIFORMLY BY HAND OR PERSONNEL EQUIPPED WITH A BROADCAST
SPREADER.
RIPARIAN SEED MIX TO BE APPLIED FROM THE TOE OF SLOPE TO 10 FEET LANDWARD FROM
TOP OF BANK.
WHEN USING BROADCAST-SEEDING METHODS, SUBDIVIDE THE AREA INTO WORKABLE
SECTIONS AND DETERMINE THE AMOUNT OF SEED NEEDED FOR EACH SECTION. APPLY
ONE-HALF THE SEED WHILE MOVING BACK AND FORTH ACROSS THE AREA, MAKING A
UNIFORM PATTERN: THEN APPLY THE SECOND HALF IN THE SAME WAY, BUT MOVING AT
RIGHT ANGLES TO THE FIRST PASS.
MAINTENANCE
GENERALLY, A STAND OF VEGETATION CANNOT BE DETERMINED TO BE FULLY ESTABLISHED
UNTIL SOIL COVER HAS BEEN MAINTAINED FOR ONE FULL YEAR FROM PLANTING. INSPECT
SEEDED AREAS FOR FAILURE AND MAKE NECESSARY REPAIRS AND RESEEDINGS WITHIN THE
SAME SEASON, IF POSSIBLE.
RESEEDING--IF A STAND HAS INADEQUATE COVER, RE-EVALUATE CHOICE OF PLANT
MATERIALS. RE-ESTABLISH THE STAND AFTER SEEDBED PREPARATION OR OVER-SEED THE
STAND.
PREPARED BY/UNDER:
JOSHUA M. BELL
NCDOT LEVEL III
CERTIFICATION NO. 3366
SINGLE SOCK SECTION VIEW
PYRAMID STACK SOCK SECTION VIEW
SINGLE SOCK PLAN VIEW
FLOW
FLOW
WOODEN STAKE
(NOTE 4)
10-FT. O.C.
COMPOST FILTER SOCK
(NOTE 1)
LOOSE COMPOST
OR WOOD CHIPS
(NOTE 9)
COMPOST FILTER SOCK
(NOTE 1)
LOOSE COMPOST
OR WOOD CHIPS
(NOTE 9)
WOODEN STAKES (NOTE 4)
10-FT. O.C., STARTING 5-FT.
FROM ANGLED STAKES
PLASTIC OR WIRE TIE
(NOTE 5)
CLOSED END
LOOSE COMPOST
OR WOOD CHIPS
(NOTE 9)
WOODEN STAKE
(NOTE 4)
10-FT. O.C.COMPOST FILTER SOCK
(NOTE 1)
12-IN. MIN.
3-IN. MIN.
12-IN. MIN.
3-IN. MIN.
10-FT. MAX.
18-IN. MIN.
OVERLAP
FL
O
W
FL
O
W
PYRAMID STACK SOCK PLAN VIEW
LOOSE COMPOST
OR WOOD CHIPS
(NOTE 9)
WOODEN STAKE
(NOTE 4)
10-FT. O.C.COMPOST FILTER SOCK
(NOTE 1)
FL
O
W
FL
O
W
20-FT. MIN.
10-FT. MAX.
10-FT. MAX.
5-FT. STEEL T-POST
10-FT. O.C.
PLASTIC OR WIRE TIE
(NOTE 5)
GENERAL NOTES
1.USE FILTREXX® SILTSOXX™ ORIGINAL OR ENGINEER APPROVED
ALTERNATIVE. COMPOST FILTER SOCK DIAMETER VARIES, REFER TO
PLAN VIEWS FOR DIAMETER.
2.COMPOST FILTER SOCKS SHOULD BE LOCATED AS SHOWN ON PLANS
OR DETAILS AND AS DIRECTED BY THE OWNER'S DESIGNATED
ENVIRONMENTAL REPRESENTATIVE. 18-INCH DIAMETER COMPOST
FILTER SOCK OR TRIPLE STACK PYRAMID OF 12-INCH DIAMETER
COMPOST FILTER SOCK MAY BE USED IN LIEU OF SILT FENCE.
3.PRIOR TO INSTALLATION, CLEAR ALL OBSTRUCTIONS INCLUDING
ROCKS, CLODS, AND OTHER DEBRIS GREATER THAN 1-IN. THAT MAY
INTERFERE WITH PROPER FUNCTION OF THE COMPOST FILTER SOCK.
4.OAK OR OTHER DURABLE HARDWOOD STAKES 2-IN. BY 2-IN. IN CROSS
SECTION SHOULD BE DRIVEN VERTICALLY PLUMB, THROUGH THE
CENTER OF THE COMPOST FILTER SOCK. STAKES SHOULD BE PLACED AT
A MAXIMUM INTERVAL OF 10-FT. O.C. STAKES SHOULD BE DRIVEN TO A
MINIMUM DEPTH OF 12-IN., WITH A MINIMUM OF 3-IN. PROTRUDING
ABOVE THE COMPOST FILTER SOCK.
5.PLASTIC OR WIRE TIES SHALL HAVE MINIMUM 50-LB. TENSILE
STRENGTH.
6.IN THE EVENT STAKING IS NOT POSSIBLE (HIGHLY COMPACTED SOILS
OR IMPERVIOUS SURFACES) SAND BAGS OR HEAVY CONCRETE BLOCKS
MAY BE USED BEHIND THE SOCK TO HOLD IT IN PLACE DURING RUNOFF
EVENTS.
7.STRAIGHTEN OR POSITION THE COMPOST FILTER SOCK AS NEEDED ON
THE GROUND, ENSURING THERE IS GOOD GROUND CONTACT AND NO
VOID SPACES UNDER THE COMPOST FILTER SOCK.
8.DO NOT DRAG COMPOST FILTER SOCK ACROSS ROUGH SURFACES. IF
DRAGGING ACROSS A ROUGH SURFACE IS NECESSARY, PLACE A
BARRIER SUCH AS PLASTIC OR A TARP UNDER COMPOST FILTER SOCK
TO PREVENT TEARING.
9.BACKFILL LOOSE COMPOST OR FINE WOOD CHIPS TO 1/2 THE HEIGHT
OF THE COMPOST FILTER SOCK ALONG THE UPSLOPE SIDE, FILLING THE
SEAM BETWEEN THE SOIL SURFACE AND THE COMPOST FILTER SOCK.
10.IF THE COMPOST FILTER SOCK IS TO BE LEFT AS PART OF THE NATURAL
LANDSCAPE, IT MAY BE SEEDED WITH THE PERMANENT SEED MIX AT
TIME OF INSTALLATION.
5-FT. STEEL T-POST
10-FT. O.C.
MAINTENANCE NOTES
1.INSPECT AT LEAST ONCE PER SEVEN (7) CALENDAR DAYS AND
WITHIN 24 HOURS OF A RAIN EVENT GREATER THAN OR EQUAL TO
1.0-IN. IN 24 HOURS.
2.MAKE ANY NECESSARY REPAIRS IMMEDIATELY.
3.THE MAXIMUM ALLOWABLE ACCUMULATED SEDIMENT IS 1/3 THE
HEIGHT OF THE COMPOST FILTER SOCK. HOWEVER, ACCUMULATED
SEDIMENT SHOULD BE REMOVED MORE FREQUENTLY.
ALTERNATIVELY, A NEW COMPOST FILTER SOCK CAN BE PLACED ON
TOP OF AND SLIGHTLY BEHIND THE ORIGINAL ONE CREATING MORE
SEDIMENT STORAGE CAPACITY WITHOUT SOIL DISTURBANCE.
4.REMOVE ACCUMULATED SEDIMENT TO PROVIDE ADEQUATE
STORAGE VOLUME FOR THE NEXT RAIN. TAKE CARE TO AVOID
UNDERMINING THE COMPOST FILTER SOCK DURING CLEANOUT.
5.THE COMPOST SOCK MUST BE REPLACED IF CLOGGED OR TORN.
6.IF PONDING BECOMES EXCESSIVE, THE COMPOST FILTER SOCK MAY
NEED TO BE REPLACED WITH ONE OF A LARGER DIAMETER OR A
DIFFERENT MEASURE.
7.THE COMPOST FILTER SOCK NEEDS TO BE REINSTALLED IF
UNDERMINED OR DISLODGED.
8.THE COMPOST FILTER SOCK SHALL BE MAINTAINED UNTIL
DISTURBED AREA ABOVE THE DEVICE HAS BEEN PERMANENTLY
STABILIZED AND CONSTRUCTION ACTIVITY HAS CEASED.
5-FT. MAX.
PLAN VIEW
SECTION VIEW
18-IN. DIA. COMPOST FILTER SOCK
18-IN. DIA. COMPOST FILTER SOCK
FILTER FABRIC
GEOTEXTILE
FABRIC
GEOTEXTILE FABRIC
FILTER FABRIC
PUMP
CLAMPS
INTAKE HOSE
DISCHARGE HOSE
CLAMP
INTAKE HOSE
DISCHARGE HOSE
CLAMP
HEAVY DUTY LIFTING STRAPS
(RECOMMENDED)
TABLE: FILTER BAG MATERIAL
PROPERTY TEST METHOD MINIMUM STANDARD
AVG. WIDE WIDTH STRENGTH ASTM D-4884 60 LB/IN
GRAB TENSILE ASTM D-4632 205 LB
PUNCTURE ASTM D-4833 110 LB
MULLEN BURST ASTM D-3786 350 PSI
UV RESISTANCE ASTM D-4355 70%
AOS % RETAINED ASTM D-4751 80 SIEVE
REVISION DENCRIPTION
GENERAL NOTES:
1.LOW VOLUME FILTER BAGS SHALL BE MADE FROM NON-WOVEN GEOTEXTILE MATERIAL SEWN WITH HIGH
STRENGTH, DOUBLE STITCHED "J" TYPE SEAMS. THEY SHALL BE CAPABLE OF TRAPPING PARTICLES LARGER THAN 150
MICRONS.
2.HIGH VOLUME FILTER BAGS SHALL BE MADE FROM WOVEN GEOTEXTILES THAT MEET THE STANDARDS IN THE
TABLE BELOW:
3.BAGS SHALL BE LOCATED IN WELL-VEGETATED (GRASSY) AREA, AND DISCHARGE ONTO STABLE, EROSION RESISTANT
AREAS. A GEOTEXTILE UNDERLAYMENT AND FLOW PATH SHALL BE PROVIDED.
4.BAGS MAY BE PLACED ON FILTER STONE TO INCREASE DISCHARGE CAPACITY. BAGS SHALL NOT BE PLACED ON
SLOPES GREATER THAN 5%. FOR SLOPES EXCEEDING 5%, CLEAN ROCK OR OTHER NON-ERODIBLE AND
NON-POLLUTING MATERIAL MAY BE PLACED UNDER THE BAG TO REDUCE SLOPE STEEPNESS.
5.FILTER BAGS SHALL BE PLACED A MINIMUM OF 50-FT. FROM SURFACE WATERS, STREAMS, OR WETLANDS.
6.INSTALL18-IN. DIA. COMPOST FILTER SOCK ON THREE DOWNGRADIENT SIDES OF FILTER BAG. ADDITIONAL
DOWNGRADIENT E&SC MEASURES MAY BE NECESSARY FOR SECONDARY CONTAINMENT FOR BAG FAILURE.
7.THE PUMP DISCHARGE HOSE SHALL BE INSERTED INTO THE BAGS IN THE MANNER SPECIFIED BY THE
MANUFACTURER AND SECURELY CLAMPED. A PIECE OF PVC PIPE IS RECOMMENDED FOR THIS PURPOSE.
8.THE PUMPING RATE SHALL BE NO GREATER THAN 750 GPM OR 1/2 THE MAXIMUM SPECIFIED BY THE
MANUFACTURER, WHICHEVER IS LESS. PUMP INTAKES SHALL BE FLOATING AND SCREENED.
MAINTENANCE NOTES:
1.FILTER BAGS SHALL BE INSPECTED DAILY. IF ANY PROBLEM IS DETECTED, PUMPING SHALL CEASE IMMEDIATELY AND
NOT RESUME UNTIL THE PROBLEM IS CORRECTED.
2.REPLACE FILTER BAG IF BAG CLOGS OR HAS RIPS, TEARS, OR PUNCTURES.
3.FILTER BAGS SHALL BE REPLACED WHEN THEY BECOME 1/2 FULL OF SEDIMENT.
4.A SUITABLE MEANS OF ACCESSING THE BAG WITH MACHINERY REQUIRED FOR DISPOSAL PURPOSES SHALL BE
PROVIDED.
5.SPARE BAGS SHALL BE KEPT AVAILABLE FOR REPLACEMENT OF THOSE THAT HAVE FAILED OR ARE FILLED.
6.BAGS SHALL BE PLACED ON STRAPS TO FACILITATE REMOVAL UNLESS BAGS COME WITH LIFTING STRAPS ALREADY
ATTACHED.
7.DURING OPERATION KEEP CONNECTION BETWEEN PUMP HOSE AND FILTER BAG WATER TIGHT.
8.REPOSITION GEOTEXTILE AND REPLACE BEDDING IF IT BECOMES DISPLACED.
REFERENCE: DETAIL BASED ON PENNSYLVANIA DEPARTMENT OF ENVIRONMENTAL PROTECTION (PA DEP) STANDARD
DETAILS AND MARYLAND DEPARTMENT OF ENVIRONMENT WATER MANAGEMENT ADMINISTRATION STANDARDS AND
SPECIFICATIONS FOR SOIL EROSION AND SEDIMENT CONTROL.
PALLETS OR NCDOT #57 STONE
BASE TO PROMOTE DRAINAGE
TEMPORARY SLOPE MATTING NOTES
1.PREPARE SOIL BEFORE INSTALLING ROLLED EROSION CONTROL
PRODUCTS (RECPS), INCLUDING ANY NECESSARY APPLICATION OF
LIME, FERTILIZER, AND SEED.
2.BEGIN AT THE TOP OF THE SLOPE BY ANCHORING THE RECPS IN A
6-IN. DEEP X 6-IN. WIDE TRENCH WITH APPROXIMATELY 12-IN. OF
RECPS EXTENDED BEYOND THE UP-SLOPE PORTION OF THE
TRENCH. ANCHOR THE RECPS WITH A ROW OF STAPLES/STAKES
APPROXIMATELY 12-IN. APART IN THE BOTTOM OF THE TRENCH.
BACKFILL AND COMPACT THE TRENCH AFTER STAPLING. APPLY
SEED TO THE COMPACTED SOIL AND FOLD THE REMAINING 12-IN.
PORTION OF RECPS BACK OVER THE SEED AND COMPACTED SOIL.
SECURE RECPS OVER COMPACTED SOIL WITH A ROW OF
STAPLES/STAKES SPACED APPROXIMATELY 12-IN. APART ACROSS
THE WIDTH OF THE RECPS.
3.ROLL THE RECPS DOWN OR HORIZONTALLY ACROSS THE SLOPE
BASED ON ENVIRONMENT INSPECTOR. RECPS WILL UNROLL WITH
APPROPRIATE SIDE AGAINST THE SOIL SURFACE. ALL RECPS MUST
BE SECURELY FASTENED TO SOIL SURFACE BY PLACING
STAPLES/STAKES IN APPROPRIATE LOCATIONS AS SHOWN IN THE
STAPLE PATTERN GUIDE.
4.THE EDGES OF PARALLEL RECPS MUST BE STAPLED WITH
APPROXIMATELY 2 TO 5-IN. OVERLAP DEPENDING ON THE RECPS
TYPE.
5.CONSECUTIVE RECPS SPLICED DOWN THE SLOPE MUST BE END
OVER END (SHINGLE STYLE) WITH AN APPROXIMATE 3-IN.
OVERLAP. STAPLE THROUGH OVERLAPPED AREA, APPROXIMATELY
12-IN. APART ACROSS ENTIRE RECPS WIDTH.
6.IN LOOSE SOIL CONDITIONS, THE USE OF STAPLE OR STAKE
LENGTHS GREATER THAN 6-IN. MAY BE NECESSARY TO PROPERLY
SECURE THE RECP'S.
7.TEMPORARY MATTING SHALL BE NORTH AMERICAN GREEN
BIONET SC150BN OR ENGINEER APPROVED EQUIVALENT.
TEMPORARY SLOPE MATTING MAINTENANCE
1.INSPECT AT LEAST ONCE PER 7 CALENDAR DAYS AND WITHIN 24
HOURS OF A RAIN EVENT GREATER THAN OR EQUAL TO 1.0-IN IN
24 HOURS.
2.MAKE ANY NECESSARY REPAIRS IMMEDIATELY.
3.GOOD CONTACT WITH THE GROUND MUST BE MAINTAINED, AND
EROSION MUST NOT OCCUR BENEATH THE RECP.
4.ANY AREAS OF THE RECP THAT ARE DAMAGED OR NOT IN CLOSE
CONTACT WITH THE GROUND SHALL BE REPAIRED AND STAPLED.
5.IF EROSION OCCURS DUE TO POORLY CONTROLLED DRAINAGE,
THE PROBLEM SHALL BE FIXED AND THE ERODED AREA
PROTECTED.
6.MONITOR AND REPAIR THE RECP AS NECESSARY UNTIL GROUND
COVER IS ESTABLISHED.
REF:DETAIL BASED ON NCDEQ EROSION AND SEDIMENT CONTROL
PLANNING AND DESIGN MANUAL, CHAPTERS 6 AND 8 REVISED, MAY
2013
ISOMETRIC VIEW
EXTEND MATTING
MINIMUM OF 3-FT. FROM
TOE OF SLOPE
8-
F
T
.

W
I
D
E
TOP OF SLOPE
END OVERLAP SEAM
(SEE NOTE 5)
3-IN.
12-IN.
6-IN.
6-IN.
START ANCHOR TRENCH
(SEE NOTE 2)
SIDE OVERLAP SEAM
(SEE NOTE 4)
2 TO 5-IN.
SOIL PREPARATION
(SEE NOTE 1)
6-FT.
3-FT.
3.3-FT.
4:1 SLOPES
0.7 STAPLES PER SQ.YD.
2 TO 5-IN.
6-FT.
3-FT.
3:1 SLOPES
1.15 STAPLES PER SQ.YD.
2 TO 5-IN.2 TO 5-IN.2 TO 5-IN.
1.6-FT.
3.3-FT.
2:1 SLOPES
1.7 STAPLES PER SQ.YD.
4-FT.
2 TO 5-IN.2 TO 5-IN.
2-FT.
1.6-FT.
3.3-FT.
1:1 SLOPES
3.4 STAPLES PER SQ.YD.
4-FT.
2 TO 5-IN.2 TO 5-IN.
2-FT.
3.3-FT.
1.6-FT.
TEMPORARY MATTING
SLOPES = SC150BN
(SEE NOTE 7)
STAPLE PATTERNS
PROFILE VIEW
WIRE MESH FOR GREATER
THAN 6-FT. POST SPACING
SECTION VIEW
24-IN.
MIN.
BURY FILTER FABRIC
& WIRE MESH
5-FT. STEEL POST
24-IN.
MIN.
FLOW
COMPACTED
BACKFILL
FILTER FABRIC
(REFER TO TABLE)
PLASTIC OR WIRE TIE
36-IN.
GENERAL NOTES
1.CONSTRUCT THE FILTER FABRIC FROM A CONTINUOUS
ROLL CUT TO THE LENGTH OF THE SILT FENCE TO AVOID
JOINTS.
2.WHEN JOINTS ARE NECESSARY, SECURELY FASTEN THE
FILTER FABRIC ONLY AT A SUPPORT POST WITH 4 FEET
MINIMUM OVERLAP TO THE NEXT POST.
3.ATTACH FILTER FABRIC TO THE STEEL POSTS USING
PLASTIC OR WIRE TIE (MIN. 50-LB. TENSILE STRENGTH)
THAT ARE EVENLY SPACED WITHIN THE TOP 8-IN. OF
THE FABRIC.
4.INSTALL THE SILT FENCE PERPENDICULAR TO THE
DIRECTION OF THE STORMWATER FLOW AND PLACE
THE SILT FENCE THE PROPER DISTANCE FROM THE TOE
OF STEEP SLOPES TO PROVIDE SEDIMENT STORAGE AND
ACCESS FOR MAINTENANCE AND CLEANOUT.
5.INSTALL SILT FENCE CHECKS (TIE-BACKS) EVERY 50-100
-FT., DEPENDENT ON SLOPE, ALONG SILT FENCE THAT IS
INSTALLED WITH SLOPE AND WHERE CONCENTRATED
FLOWS ARE EXPECTED OR ARE DOCUMENTED ALONG
THE PROPOSED/INSTALLED SILT FENCE.
6.DO NOT ATTACH FILTER FABRIC TO EXISTING TREES.
POST REQUIREMENTS
1.SILT FENCE POSTS MUST BE 5-FT. LONG STEEL POSTS
THAT MEET, AT A MINIMUM, THE FOLLOWING PHYSICAL
CHARACTERISTICS.
1.1.WEIGH 1.25 POUNDS PER FOOT
1.2.1-3/8-IN. WIDE MEASURED PARALLEL TO THE FENCE
2.POSTS SHALL BE EQUIPPED WITH PROJECTIONS TO AID
IN FASTENING OF FILTER FABRIC.
3.EACH POST TO BE EQUIPPED WITH SAFETY CAP.
4.STEEL POSTS MAY NEED TO HAVE A METAL SOIL
STABILIZATION PLATE WELDED NEAR THE BOTTOM
WHEN INSTALLED ALONG STEEP SLOPES OR INSTALLED
IN LOOSE SOILS. THE PLATE SHOULD HAVE A MINIMUM
CROSS SECTION OF 14-SQUARE -IN. AND BE COMPOSED
OF 15 GAUGE STEEL, AT A MINIMUM. THE METAL SOIL
STABILIZATION PLATE SHOULD BE COMPLETELY BURIED.
5.INSTALL POSTS TO A MINIMUM DEPTH OF 24-IN. A
MINIMUM HEIGHT OF 1-IN. TO 2-IN. ABOVE THE FABRIC
SHALL BE MAINTAINED, AND A MAXIMUM HEIGHT OF
3-FT. SHALL BE MAINTAINED ABOVE THE GROUND.
6.POST SPACING SHALL BE AT A MAXIMUM OF 6-FT. ON
CENTER.
7.WOODEN POSTS ARE ALLOWED WHEN CROSSING
UTILITIES. OWNER'S DESIGNATED ENVIRONMENTAL
REPRESENTATIVE SHALL APPROVE LOCATIONS WHERE
WOODEN POST ARE TO BE USED PRIOR TO
INSTALLATION.
FABRIC & WIRE MESH REQUIREMENTS
1.SILT FENCE MUST BE COMPOSED OF WOVEN
GEOTEXTILE FILTER FABRIC THAT CONSISTS OF THE
FOLLOWING REQUIREMENTS:
1.1.USE A SYNTHETIC FILTER FABRIC OF AT LEAST 95% BY
WEIGHT OF POLYOLEFINS OR POLYESTER, WHICH IS
CERTIFIED BY THE MANUFACTURER OR SUPPLIER AS
CONFORMING TO THE REQUIREMENTS IN ASTM D
6461;
1.2.SYNTHETIC FILTER FABRIC SHOULD CONTAIN
ULTRAVIOLET RAY INHIBITORS AND STABILIZERS TO
PROVIDE A MINIMUM OF 6 MONTHS OF EXPECTED
USABLE CONSTRUCTION LIFE AT A TEMPERATURE OF
0 TO 120° F;
1.3.FREE OF ANY TREATMENT OR COATING WHICH
MIGHT ADVERSELY ALTER ITS PHYSICAL PROPERTIES
AFTER INSTALLATION;
1.4.FREE OF ANY DEFECTS OR FLAWS THAT
SIGNIFICANTLY AFFECT ITS PHYSICAL AND/OR
FILTERING PROPERTIES; AND,
1.5.HAVE A MINIMUM WIDTH OF 36-IN.
2.12-IN. OF THE FABRIC SHOULD BE PLACED WITHIN
EXCAVATED TRENCH AND SECURED WHEN THE TRENCH
IS BACKFILLED.
3.FILTER FABRIC SHALL BE PURCHASED IN CONTINUOUS
ROLLS AND CUT TO THE LENGTH OF THE BARRIER TO
AVOID JOINTS.
4.FILTER FABRIC SHALL BE INSTALLED AT A MINIMUM OF
24-IN. ABOVE THE GROUND.
5.WOVEN WIRE FENCE SHALL BE AT LEAST 32 INCHES
HIGH WITH 5 HORIZONTAL WIRES, VERTICAL WIRES
SPACED 12 INCHES APART, 10 GAUGE TOP AND BOTTOM
WIRES, AND 12 1/2 GAUGE FOR ALL OTHER WIRES.
6.EXTEND THE WIRE MESH SUPPORT TO THE BOTTOM OF
THE TRENCH.
WIRE MESH FOR GREATER
THAN 6-FT. POST SPACING
SAFETY CAP
5-FT. STEEL POST
PLASTIC OR
WIRE TIE
FILTER FABRIC
(REFER TO TABLE)
BURY FILTER FABRIC
& WIRE MESH
COMPACTED
BACKFILL
6-FT. MAX SPACING WITHOUT WIRE MESH
8-FT. MAXIMUM WTIH WIRE MESH
SAFETY CAP
TABLE: STANDARD STRENGTH
WOVEN FILTER FABRIC
PROPERTY TEST VALUE
GRAB TENSILE
STRENGTH
ASTM
D4632 90-LBS. MARV
GRAB TENSILE
ELONGATION
ASTM
D4632 90-LBS. MARV
PERMITTIVITY ASTM
D4491
0.05 (SEC-1)
MARV
APPARENT OPENING SIZE ASTM
D4751 US SIEVE #30
ULTRAVIOLET STABILITY AT
500 HR OF EXPOSURE
ASTM
D4355 70% TYPICAL
INSPECTION & MAINTENANCE
1.THE KEY TO FUNCTIONAL SILT FENCE IS INSPECTIONS,
ROUTINE MAINTENANCE, AND REGULAR SEDIMENT
REMOVAL.
2.INSPECT AT LEAST ONCE PER 7 CALENDAR DAYS AND
WITHIN 24 HOURS OF A RAIN EVENT GREATER THAN OR
EQUAL TO 1.0-IN. IN 24 HOURS.
3.ATTENTION TO SEDIMENT ACCUMULATIONS ALONG
THE SILT FENCE IS EXTREMELY IMPORTANT.
ACCUMULATED SEDIMENT SHOULD BE CONTINUALLY
MONITORED AND REMOVED WHEN NECESSARY.
4.REMOVE ACCUMULATED SEDIMENT WHEN IT REACHES
1/3 THE HEIGHT OF THE SILT FENCE.
5.REMOVED SEDIMENT SHALL BE PLACED IN STOCKPILE
STORAGE AREAS OR SPREAD THINLY ACROSS
DISTURBED AREA. STABILIZE THE REMOVED SEDIMENT
AFTER IT IS RELOCATED.
6.CHECK FOR AREAS WHERE STORMWATER RUNOFF HAS
ERODED A CHANNEL BENEATH THE SILT FENCE, OR
WHERE THE FENCE HAS SAGGED OR COLLAPSED DUE TO
RUNOFF OVERTOPPING THE SILT FENCE. INSTALL
CHECKS/TIE-BACKS AND/OR REINSTALL SILT FENCE, AS
NECESSARY.
7.CHECK FOR TEARS WITHIN THE SILT FENCE, AREAS
WHERE SILT FENCE HAS BEGUN TO DECOMPOSE, AND
FOR ANY OTHER CIRCUMSTANCE THAT MAY RENDER
THE SILT FENCE INEFFECTIVE. REMOVE DAMAGED SILT
FENCE AND REINSTALL NEW SILT FENCE IMMEDIATELY.
8.SILT FENCE SHOULD BE REMOVED WITHIN 30 DAYS
AFTER FINAL STABILIZATION IS ACHIEVED AND ONCE IT
IS REMOVED, THE RESULTING DISTURBED AREA SHALL BE
PERMANENTLY STABILIZED.
REFERENCE: DETAIL BASED ON NCDEQ EROSION AND SEDIMENT
CONTROL PLANNING AND DESIGN MANUAL, CHAPTERS 6 AND 8
REVISED, MAY 2013 AND SCDHEC STORM WATER MANAGEMENT
BMP HANDBOOK DATED JULY 31, 2005, REVISED MARCH 2014.
4-IN.
8-IN.
DR
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2
ENGINEERING FIRM
LICENSE NUMBER: F-0176
2016 AYRSLEY TOWN BLVD.
SUITE 2-A
CHARLOTTE, NC 28273
[phone]
PREPARED BY/UNDER:
TY D. HOLDERBAUM
NCDOT LEVEL III
CERTIFICATION NO. 4125
1
10
REINFORCED SILT FENCE
SCALE: N.T.S.
2
10
COMPOST FILTER SOCK
SCALE: N.T.S.
3
10
FILTER BAG
SCALE: N.T.S.
4
10
SLOPE MATTING
SCALE: N.T.S.
5-FT.
(SEE NOTE 2)
2-FT.
(SEE NOTE 4)
RAIN GAUGE INSTALLATION IN DEVELOPED AREAS
DISTANCE = 2 X HEIGHT
(SEE NOTE 3)
HEIGHT
(SEE NOTE 3)
DISTANCE = HEIGHT
(SEE NOTE 1)
HEIGHT
(SEE NOTE 1)
RAIN GAUGE NOTES:
1.IN DEVELOPED AREAS INSTALL THE RAIN GAUGE AT A DISTANCE EQUAL TO THE
HEIGHT OF ADJACENT OBSTACLES.
2.IN DEVELOPED AREAS INSTALL THE RAIN GAUGE TOP APPROXIMATELY 5-FT.
ABOVE THE EXISTING ADJACENT GROUND SURFACE. THIS WILL IMPROVE GAUGE
CATCH BY REDUCING THE IMPACT OF NEARBY OBSTACLES.
3.IN OPEN AREAS INSTALL THE RAIN GAUGE AT A DISTANCE TWICE THE HEIGHT OF
ADJACENT OBSTACLES.
4.IN OPEN AREAS INSTALL THE RAIN GAUGE TOP APPROXIMATELY 2-FT. ABOVE THE
EXISTING ADJACENT GROUND SURFACE. THIS WILL IMPROVE GAUGE CATCH BY
REDUCING THE WIND SPEED EXPOSURE.
5.INSTALL RAIN GAUGE LEVEL.
6.INSTALL RAIN GAUGE A MINIMUM OF 6-IN. FROM TOP OF POST.
6-IN.
(SEE NOTE 6)
RAIN GAUGE INSTALLATION IN OPEN AREAS
RAIN GAUGE
(SEE NOTE 5)
RAIN GAUGE
(SEE NOTE 5)
6-IN.
(SEE NOTE 6)
POST
(SEE NOTES 7 & 8)
POST
(SEE NOTES 7 & 8)
EXISTING GROUND
SURFACE
EXISTING GROUND
SURFACE
OBSTACLE
(SEE NOTE 13)
OBSTACLE
(SEE NOTE 13)
RAIN GAUGE NOTES (CONTINUED):
7.BEVEL THE TOP OF THE POST TO REDUCE RAIN SPLASHING INTO THE GAUGE.
8.USE 4-IN. BY 4-IN. WOOD POST OR OTHER STURDY MOUNTING POST THAT WILL
NOT SWAY IN WIND.
9.WHEN MAKING OBSERVATIONS READ FROM THE BOTTOM OF THE MENISCUS.
10.THE MOST COMMON OBSERVATION WILL BE ZERO. RECORD ALL ZEROS ON
RAINFALL DATA LOGS.
11.WHEN ONLY A DROP OR TWO WET THE GAUGE RECORD A “T” FOR TRACE.
12.OBSTACLES INCLUDE NATURAL OR MANMADE STRUCTURES THAT IMPEDE RAIN
FROM ENTERING THE RAIN GAUGE. THESE INCLUDE BUT ARE NOT LIMITED TO
TREES, STOCKPILES, STORED MATERIALS, PROJECT TRAILERS, PORTABLE
RESTROOMS, PROJECT JOB BOX, PARKED VEHICLES OR EQUIPMENT, AND
BUILDINGS.
13.THE ENVIRONMENTAL INSPECTOR OR OWNER'S REPRESENTATIVE TO DETERMINE
LOCATION OF RAIN GAUGE IN THE FIELD.
48-IN.
20-IN. MIN.
8-FT. MAXIMUM
FENCE MATERIAL
(SEE NOTE 1)
FENCE MATERIAL
(SEE NOTE 1)
EXCLUSION / SAFETY FENCE NOTES:
1.ORANGE OR OTHER HIGH VISIBILITY COLOR, UV RESISTANT HIGH-TENSILE STRENGTH POLY
BARRICADE FABRIC.
2.FENCE SHALL BE INSTALLED AROUND BORE PITS, AS SHOWN ON PLANS FOR OTHER AREAS AND AS
NEEDED BASED UPON FIELD CONDITIONS.
3.FENCE SHOULD BE FASTENED SECURELY TO THE T-POSTS.
EXCLUSION / SAFETY FENCE MAINTENANCE:
1.INSPECT AT LEAST ONCE PER 7 CALENDAR DAYS AND WITHIN 24 HOURS OF A RAIN EVENT GREATER
THAN OR EQUAL TO 1.0-IN. IN 24 HOURS. MAKE ANY REQUIRED REPAIRS IMMEDIATELY.
2.SHOULD ANY OF THE FENCE COLLAPSE, TEAR, OR BECOME INEFFECTIVE, REPLACE IT PROMPTLY.
3.REMOVE ALL FENCING MATERIALS UPON COMPLETION OF PROJECT.
6-FT. STEEL T-POST
6-FT. STEEL T-POST
NOTES:
1. SOIL STOCKPILE AREA SHALL BE PLACED ON
A UPLAND AREA AWAY FROM STREAMS,
WETLANDS, AND OTHER ENVIRONMENTALLY
SENSITIVE AREAS. SOIL STOCKPILE AREA
SHALL BE LOCATED WITHIN LIMITS OF
DISTURBANCE.
2.STAKE COMPOST FILTER SOCKS IN PLACE
WITH 2" X 2" X 36" WOODEN STAKES.
INSTALL TEMPORARY SILT FENCE IN
ACCORDANCE WITH TEMPORARY SILT FENCE
DETAIL.
3. INSTALL 18-INCH COMPOST FILTER SOCKS
OR TEMPORARY SILT FENCE AROUND
STOCKPILE AREA ON ALL DOWN GRADIENT
SIDES TO RETAIN SOILS IN DESIGNATED
AREA.
4. INSPECTIONS OF COMPOST FILTER SOCKS
OR SILT FENCE SHALL BE CONDUCTED ONCE
EVERY CALENDAR WEEK AND WITHIN
24-HOURS AFTER EACH RAINFALL EVENT
THAT PRODUCES 0.5-INCHES OR MORE OF
PRECIPITATION.
3.REMOVE SEDIMENT ACCUMULATED BEHIND
THE COMPOST FILTER SOCKS OR SILT FENCE
AND DO NOT ALLOW HEIGHT OF SEDIMENT
BUILD-UP TO EXCEED 50% OF THE COMPOST
FILTER SOCK OR SILT FENCE.
4.MAKE NECESSARY REPAIRS OR
REPLACEMENTS IMMEDIATELY.
18-INCH COMPOST FILTER
SOCK OR ENGINEER
APPROVED EQUIVALENT
2" X 2" X 36"
WOODEN STAKES
SOIL STOCKPILE
■
■
■
■
■■■
■
■
■
■
■
■
■
■
■■■■
■
■
■
■
SOIL STOCKPILE
TEMPORARY
SILT FENCE
DR
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22050131
11 12
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2
2
ENGINEERING FIRM
LICENSE NUMBER: F-0176
2016 AYRSLEY TOWN BLVD.
SUITE 2-A
CHARLOTTE, NC 28273
[phone]
PREPARED BY/UNDER:
TY D. HOLDERBAUM
NCDOT LEVEL III
CERTIFICATION NO. 4125
6
11
RAIN GUAGE
SCALE: N.T.S.
7
11
EXCLUSION SAFETY FENCE
SCALE: N.T.S.
5
11
TEMPORARY STOCKPILE STABILIZATION
SCALE: N.T.S.
STRUCTURAL FILL
TOP OF RISER EL.
INV. EL.
CONSTRUCTION SPECIFICATIONS
1.CONDUIT SPILLWAYS--SECURELY ATTACH THE RISER TO THE
BARREL OR BARREL STUB TO MAKE A WATERTIGHT
STRUCTURAL CONNECTION. SECURE ALL CONNECTIONS
BETWEEN BARREL SECTIONS BY APPROVED WATERTIGHT
ASSEMBLIES.
2.PLACE THE BARREL AND RISER ON A FIRM, SMOOTH
FOUNDATION OR IMPERVIOUS SOIL. DO NOT USE PERVIOUS
MATERIAL SUCH AS SAND, GRAVEL, OR CRUSHED STONE AS
BACKFILL AROUND THE PIPE OR ANTI-SEEP COLLARS.
3.PLACE THE FILL MATERIAL AROUND THE PIPE SPILLWAY IN
4-INCH LAYERS AND COMPACT IT UNDER AND AROUND THE
PIPE TO AT LEAST THE SAME DENSITY AS THE ADJACENT
EMBANKMENT. CARE MUST BE TAKEN NOT TO RAISE THE PIPE
FROM FIRM CONTACT WITH ITS FOUNDATION WHEN
COMPACTING UNDER THE PIPE HAUNCHES.
4.PLACE A MINIMUM DEPTH OF 2 FT. OF HAND-COMPACTED
BACKFILL OVER THE PIPE SPILLWAY BEFORE CROSSING IT WITH
CONSTRUCTION EQUIPMENT.
5.ANCHOR THE RISER IN PLACE BY CONCRETE OR OTHER
SATISFACTORY MEANS TO PREVENT FLOTATION. IN NO CASE
SHOULD THE PIPE CONDUIT BE INSTALLED BY CUTTING A
TRENCH THROUGH THE DAM AFTER THE EMBANKMENT IS
COMPLETE.
BOT. OF BASIN EL.
2' THICK
MIN.
6'-6" SQUARE
10 FT
BOTTOM OF SPILLWAY EL.
ELEVATION OF EMERGENCY SPILLWAY
TOP OF BERM EL.
0.5'3
1
TOP OF BERM EL.
BOTTOM OF SPILLWAY EL.
18" MINIMUM
13 FT.
3
1
ANTI-VORTEX PLATE
TRASH RACK
24" DIA. HDPE
RISER
18" DIA. HDPE
BARREL
STABILIZED WITH
VEGETATION
EMERGENCY
SPILLWAY
EMBANKMENT
STABILIZED WITH
VEGETATION
NCDOT CLASS B RIPRAP (d50 =
8-INCHES) UNDERLAIN WITH
8-0Z/SY NON-WOVEN
GEOTEXTILE FABRICPIPE OUTLET INV. EL.
60"X60" ANTI-SEEP
COLLAR18-INCH DIAMETER
HDPE PRINCIPAL
SPILLWAY PIPE
CONCRETE
ANTI-FLOTATION
BLOCK
TRASH RACK
SEE DETAIL ABOVE
24-INCH
DIA. HDPE
PIPE RISER
4-INCH (3.8-INCH DIA.
ORIFICE) SKIMMER - SEE DETAIL
SEDIMENT BASIN SKIMMER
ATTACHED OR
FUSED TO HDPE
RISER
1'
X X X
X X X
X X X
176 FT
56 FT
80 FT
200 FT
EXISTING GRADE
+4 FT
+4 FT
EXISTING GRADE
3H:1V
3H:1V
3H:1V
3H:1V
0.5'
0.5'
EMBANKMENT PROFILE (ABOVE GRADE)
STRUCTURAL FILL
0.5'3
1
TOP OF BERM EL.
3
1
EMERGENCY
SPILLWAY EMBANKMENT
STABILIZED WITH
VEGETATION
PIPE OUTLET INV. EL.
COMMON WITH
DRAINAGE FEATURE EL.
60"X60" ANTI-SEEP
COLLAR18-INCH DIAMETER
HDPE PRINCIPAL
SPILLWAY PIPE
CONCRETE
ANTI-FLOTATION
BLOCK
TRASH RACK
SEE DETAIL ABOVE
24-INCH
DIA. HDPE
PIPE RISER 0.5'
EMBANKMENT PROFILE (ADJACENT DRAINAGE FEATURE)
BOTTOM OF
SPILLWAY EL.
3.0'3.0'
X X X
X X X
X X X
176 FT
56 FT
200 FT
EXISTING GRADE
+2 FT
+2 FT
EXISTING GRADE
-2 FT
3H:1V
3H:1V
3H:1V
3H:1V
BASIN PLANVIEW (ADJACENT DRAINAGE FEATURE)
80 FT
EXISTING DRAINAGE FEATURE
BASIN PLANVIEW (ABOVE GRADE)
LOCATE PIPE OUTLET AT LOWEST
ADJACENT GRADE TO PROVIDE
POSITIVE DRAINAGE
PVC TEE
FLEXIBLE HOSE
SCHEDULE
40 PVC PIPE
PVC TEE
PVC ELBOW
PVC VENT PIPE
PVC PIPE ½"
HOLES IN
UNDERSIDE
“ C ” ENCLOSURE
WATER
ENTRY UNIT
PERSPECTIVE VIEW
ARM ASSEMBLY
SCHEDULE
40 PVC PIPE
BOTTOM SURFACE
FRONT VIEW
WATER SURFACE
END VIEW
PVC END CAP
ORIFICE PLATE
DR
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12 12
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10
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1
4
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2
0
2
2
ENGINEERING FIRM
LICENSE NUMBER: F-0176
2016 AYRSLEY TOWN BLVD.
SUITE 2-A
CHARLOTTE, NC 28273
[phone]
PREPARED BY/UNDER:
JOSHUA M. BELL
NCDOT LEVEL III
CERTIFICATION NO. 3366
8
12
TEMPORARY DEWATERING BASIN
SCALE: N.T.S.
9
12
FAIRCLOTH SKIMMER
SCALE: N.T.S.