HomeMy WebLinkAbout20210347 Ver 1_08_EB-5721 EC_20210215SHEET NO.PROJECT REFERENCE NO.2/8/2021EB-5721
K:\RAL_Roadway\011159024 - EB-5721 (Fordham Blvd)\Plan\Erosion Control\EB-5721_EC_psh_1A.dgnNARRATIVE
PROJECT DENUDED AREAS
FLOW ARROWS
EC-1 EC-2 EC-3 EC-4 EC-5
CLELAND DRIVEN. FORDHAM BLVD
RIDGEFIELD RD WALNUT ST WILLOW DR COMPLEX
RAINBOW SOCCER
S. ESTES DRBOLIN CREEKEC-1A
WILLOW DR S. ESTES DREB-5721 (FORDHAM BLVD) DISTURBED AREAS
IMPERVIOUS AND PERVIOUS SURFACES IN
land complex, and Urban Land.
The classified soils in this corridor include Chewacla loam, White Store sandy loam, White Store-Urban
Soils
the Haw River (Jordan Lake) protected water supply watershed.
Creek regulatory floodway, 100-year floodplain, and 500-year floodplain, and is located within
impacts to jurisdictional wetlands are anticipated. The project will be constructed in the Bolin
However, the project is not anticipated to impact any jurisdictional streams, and no permanent
including Bolin Creek, and two jurisdictional wetlands are present within the project area.
Rainbow Soccer Complex and Little Ridgefield neighborhood. Four jurisdictional streams,
corridor topography is moderate, ranging about 50 feet in elevation. It is located adjacent to the
The project corridor is located in the piedmont physiographic region of North Carolina. The
Site Description
multi-use path between Ridgefield Road and Willow Drive would be constructed on new location.
Creek would be retained as part of the project. The proposed 0.4 mile long section of the
Transportation Officials (AASHTO) standards. The existing timber boardwalk over Bolin
to meet North Carolina Bicycle Program and American Association of State Highway and
of the multi-use path between Cleland Drive and Ridgefield Road is proposed to be upgraded
of upgrading an existing path and building a new path. The existing 0.3 mile long section
pedestrian use constructed by the Town of Chapel Hill. The project is a combination
EB-5721 is a multi-use trail along the east side of Fordham Boulevard for bicycle and
Project Description
Total Denuded Area (shaded) = 2.71 acres
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED
421 FAYETTEVILLE STREET, SUITE 600
CONST. REV.
RIGHT-OF-WAY REV.
C 2018
RALEIGH, NC 27601
PROFESSION
ALE
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ENGINEER
ROADWAY DESIGN
ENGINEER
ROADWAY DESIGN
NAD 83/NSRS 2007 PROPOSED PERVIOUS SURFACE = 1.86 AC
PROPOSED IMPERVIOUS SURFACE = .85 AC
250250250 2502 5 5260
PAVED GREENWAY
PAVED GREENWAY
DI
TOP=258.54'
INV=251.61'
INV=252.22'
INV OUT=253.97'
24" RCP
DI
TOP=261.07'
INV OUT=258.04'30" RCP12" CMP60" CHL
30" C&G30" C&GBOLLARD
60" CHL
INV=250.34'
MTL
60" CHL
12" CONC WW
MTL
COLLAPSED PIPE
DIRECTION ONLY
16" CONC HW
EXIST R/WEXIST R/W
EXIST R/W
EXIST R/WEXIST R/WENDOWMENT FUND
UNIVERSITY OF NC
DB 549 PG 600
DB 549 PG 600
UNIVERSITY OF NC ENDOWMENT FUND
250
250
250250250
250
2
5
0250 250250
250
250250
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250
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0250
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1R/W SHEET NO.
SHEET NO.PROJECT REFERENCE NO.
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED5/14/99EB-5721
421 FAYETTEVILLE STREET, SUITE 600
CONST. REV.
RIGHT-OF-WAY REV.
C 2018
RALEIGH, NC 27601
2/8/2021K:\RAL_Roadway\011159024 - EB-5721 (Fordham Blvd)\Plan\Erosion Control\EB-5721_EC_psh_1.dgnEC-1
MATCH LINE -L- STA 17+00 (SEE SHEET EC-2)CONSTRUCTION LIMIT C
PROPOSED CONTOUR
EXISTING CONTOUR
F
(APPLIES TO ALL SHEETS)
LEGEND
(SHADED ON PLANS)
LIMITS OF DISTURBANCE
STD DETAIL 1607.01 ON SHEET EC-8)
ENTRANCE (SEE MODIFIED NCDOT
TEMPORARY CONSTRUCTION
(SEE DETAIL ON SHEET EC-7)
TEMPORARY SILT FENCE
(SEE DETAIL ON SHEET EC-7)
TREE PROTECTION FENCE
(SEE DETAIL ON SHEET EC-7)
SILT FENCE OUTLET
SPECIAL SEDIMENT CONTROL FENCE/
DETAIL 1635.02 ON SHEET EC-10)
SEDIMENT TRAP, (SEE NCDOT STD
TEMPORARY ROCK PIPE INLET
(SEE DETAIL ON SHEETS EC-8)
CONCRETE WASHOUT STRUCTURE
DETAIL 1633.02 ON SHEET EC-10)
TYPE B, (SEE NCDOT STD
TEMPORARY ROCK SILT CHECK
ENGINEERENGINEER
ROADWAY DESIGN
PROFESSION
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024436
NAD 83/NSRS 2007
STORMWATER PERMIT. REFER TO CROSS SECTIONS.
WITHIN 14 DAYS AS REQUIRED BY NPDES GENERAL
7 DAYS. ALL OTHER SLOPES SHALL BE STABILIZED
OF DITCHES, SWALES, AND DIVERSIONS WITHIN
ON SLOPES STEEPER THAN 3:1 AND ON THE SLOPES
CONTRACTOR SHALL PROVIDE SOIL STABILIZATION
NOTE: SLOPES ON THIS PROJECT ARE PRIMARILY 3:1.
15A NCAC 04B.0131
NCG010000 AND NORTH CAROLINA GENERAL STATUE 113A-54.1(e) AND
IN ACCORDANCE WITH THE CONDITIONS OF THE NPDES PERMIT NO.
SELF-INSPECTIONS AND SELF-MONITORING SHALL BE CONDUCTED
NATURAL RESOURCES DIVISION OF WATER QUALITY.
ISSUED BY THE NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND
NCG-010000 GENERAL CONSTRUCTION PERMIT EFFECTIVE APRIL 1, 2019
WITH THE REGULATIONS SET FORTH BY THE
THESE EROSION AND SEDIMENT CONTROL PLANS COMPLY
SEE SHEET EC-8 FOR DETAIL.
DOES NOT OCCUR OUTSIDE OF PROJECT CORRIDOR.
DURING CONSTRUCTION PHASING TO ENSURE TRACKING
CONSTRUCTION ENTRANCES TO BE FIELD ADJUSTED
EC-9)
TYPE A (SEE DETAIL ON SHEET
TEMPORARY ROCK SILT CHECK DAM,
GENERAL NOTES
250
250
(SEE DETAILS ON SHEETS EC-8)
STORM DRAIN INLET PROTECTION
15.) STREAM BANK STABILIZATION SHOULD BE PHASED SO THAT EACH DAY'S WORK IS COMPLETED AND ADEQUATELY STABILIZED AT THE END OF EACH WORK DAY.
AREAS ARE EXPOSED.
14.) MINIMIZE BUFFER DISTURBANCE AS MUCH AS POSSIBLE. WORK WITHIN BUFFER ZONE SHOULD BE SEQUENCED TO MINIMIZE THE LENGTH OF TIME THAT DISTURBED
METHODS ONLY. WATER MUST NOT BE USED TO WASH SEDIMENT OFF OF ROADS, DRIVEWAYS, OR PARKING LOTS.
13.) DO NOT ALLOW CONCRETE DUST/WASTE/WASTEWATER INTO STORM DRAIN OR OFF-SITE. ALL SEDIMENT MUST BE CLEANED OFF THE ROADWAY BY DRY SWEEPING
12.) USE ROLLED EROSION CONTROL PRODUCTS ON ALL CUT/FILL SLOPES INCLUDING BASINS AS NECESSARY FOR STABILIZATION
11.) CONTRACTOR TO USE J-HOOKS AS PER DETAIL WHEN ENDING SILT FENCE ALONG STEEP SLOPES.
TOWN INSPECTOR TO DETERMINE WHEN ROCK CHECK DAMS MAY BE REPLACED BY WATTLES UPON PARTIAL STABILIZATION OF SOIL.
10.) ROCK CHECK DAMS TO BE INSTALLED AND MAINTAINED WHEN UNSTABLE AND SEDIMENT LADEN SOIL IS DRAINING IN DITCHES. CONTRACTOR TO COORDINATE WITH
9.) INLET PROTECTION TO BE INSTALLED AND MAINTAINED WHEN UNSTABLE AND SEDIMENT LADEN SOIL IS DRAINING TO STRUCTURES.
8.) NO BURNING WILL BE ALLOWED ON THE PROJECT.
7.) INSTALL ANY ADDITIONAL EROSION CONTROL MEASURES AS NECESSARY TO PREVENT SEDIMENT RUNOFF.
6.) ALL EROSION CONTROL MEASURES MUST BE SELF-INSPECTED PER NOTES ON PAGE EC-12.
5.) SILT FENCE OUTLET MUST BE ADDED IN THE FIELD WHENEVER LOW POINTS ARE ENCOUNTERED ALONG SILT FENCE RUNS.
FENCES WILL PASS OVER THE PIPE OUTLETS.
4.) WHERE SILT FENCES ARE LOCATED BELOW STORM DRAIN OUTLETS, THEIR LOCATIONS MUST BE MODIFIED AS THE STORM DRAINS ARE INSTALLED SO THAT THE
DURING COSNTRUCTION.
DAMAGE AND BLOACKAGE, REPLACE BAG WHEN 3#4 FULL OF SEDIMENT, AND PROVIDE A SUFFICIENT QUANTITY OF BAGS TO CONTAIN SILT FROM PUMPED EFFLUENT
DEWATER EXCAVATED AREAS AS NEEDED USING SILT BAGS AND/OR COFFER DAM AND PUMP AROUND. IF SILT BAGS ARE UTILIZED, CONTRACTOR TO INSPECT BAG FOR
3.) PIPES SHALL BE INSTALLED/REPLACED IN THE DRY (WITH A MIN. 3 DAYS OF DRY WEATHER DURING INSTALLATION) OR CONTRACTOR SHALL PLAN TO ISOLATE AND
BE REPAIRED AT THE CONTRACTORS EXPENSE.
PROJECT DURATION UNLESS DIRECTED BY TOWN ENGINEER. ANY DAMAGE TO EXISTING CURB AND GUTTER, ROADS, OR PARKING LOTS AT CONSTRUCTION ENTRANCES MUST
2.) CONTRACTOR TO ENSURE THAT ALL ROADWAYS, PARKING LOTS, AND CURB LINES ADJACENT TO THIS PROJECT ARE FREE OF DEBRIS, DIRT, AND EQUIPMENT DURING THE
1.) ALL EROSION CONTROL MEASURES TO BE WITHIN LIMITS OF DISTURBANCE.
500-YR FLOODPLAIN
100-YR FLOODPLAIN
FLOODWAY100-YR FLOODPLAIN500-YR FLOODPLAIN10+0015+00F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
ENTRANCE
CONSTRUCTION
INSTALL GRAVEL
LIMITS (TYP)
2' FROM CONSTRUCTION
INSTALL SILT FENCE
LIMITS OF DISTURBANCE (TYP)
EXISTING WETLANDS
EASEMENT AND TO AVOID
AREA TO BE KEPT WITHIN
STAGING AND STOCKPILING
EROSION CONTROL
WETLAND DURING CONSTRUCTION AND
CONTRACTOR TO AVOID DISTURBING
250250PAVED GREENWAY
PAVED GREENWAY
12" CONC WW
MTL
60" CHL
MTL
60" CHL
30" RCP60" CHLBOLLARD
12" CONC WW
W
OODBOLLARD
12" CONC WW
12" CONC WW
12" CONC WW 30" RCPSSMH
TOP=253.79'
INV IN=244.05'
MTL
12" CONC WW
12" CONC WW(2) 10' x 12' CONCCUL7CUL8CUL9CUL10CUL11CUL1216" CONC HW
HW2 CE2CUL1CUL2CUL3CUL4CE1HW1
16" CONC HW
12" CONC WW
16" CONC HW
12" CONC WW
CONC10' x 12'(3)SSMH
TOP=255.39'
INV IN=244.39'
INV OUT=244.09'PROPERTY LINE IS CENTERLINE OF CREEKEXIST R/W
R/W
EXIST
EXIST R/W
CHAPEL HILL HOUSING AUTHORITY
UNIVERSITY OF NC ENDOWMENT FUND
DB 549 PG 600
NO DEED REFERENCE250250250
2
5
0
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1R/W SHEET NO.
SHEET NO.PROJECT REFERENCE NO.
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED5/14/99EB-5721
421 FAYETTEVILLE STREET, SUITE 600
CONST. REV.
RIGHT-OF-WAY REV.
C 2018
RALEIGH, NC 27601
2/8/2021K:\RAL_Roadway\011159024 - EB-5721 (Fordham Blvd)\Plan\Erosion Control\EB-5721_EC_psh_2.dgnEC-2
MATCH LINE -L- STA 17+00 (SEE SHEET EC-1)MATCH LI
NE
-L-
STA 24+50
(SEE SHEET EC-3)
ROADWAY DESIGN
ENGINEER
PROFESSION
ALE
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024436
NAD 83/NSRS 2007
FLOODWAYFLOODWAY
20+00F
F
C C
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
LIMITS (TYP)
2' FROM CONSTRUCTION
INSTALL SILT FENCE
LIMITS OF DISTURBANCE (TYP)
255
255 255260 260265265265265270270MTL
PAVED GREENWAY
30" C&G
CONC SWRAIS E D S WDI
24" RCP
72" WOOD
96" C
H
L
72" WOOD 72" WOOD
2
4" RCPSOIL72" WOODHHHHHHHH
HH
HH15" DIPDEBRIS
FULL OF
INV=249.81'
18" RCP
FOUND
END NOT INV=251.49'
INV=253.23'
15" RCP
15" RCPCB
TOP=262.82'
INV OUT=256.93'15" RCPFOUND
END NOT
CAMERA POLE
HH HH
6 ", DI, OWASA
Public Service Company Of N C Inc., 2 "
TOWN OF CHAPEL HILL
12" CONC WW
16" CONC HW
12" CONC WW
18" RCP
INV=255.79'
TOP=262.22'
CB
INV IN=257.74'
INV OUT=257.42'
TOP=262.46'
INV OUT=258.53'
CB
DI
INV IN=255.09'
TOP=259.24'
INV OUT=254.77'
TOP=259.84'
INV IN=255.71'
INV OUT=255.49'
INV=252.59'
18" RCP
BOLLARD
12" RCP FESI
INV=250.95'
FESI
S 85°16'41" E104.57'
N 04°19'19" E
132.12'S 84°28'05" E138.62'N 84°28'05" W134.30'N 84°37'08" W132.09'60.00'
EIP
EIP EIP
EXIST R/W
EXIST R/WEXIST R/W
EXIST R/W
EXIST R/WEXIST R/WEXIST R/WCHAPEL HILL HOUSING AUTHORITY
NO DEED REFERENCE
DB 4875 PG 228
HTOO HTOO KYAW
PB 6 PG 61
LESLIE D. THOMAS
DB 2940 PG 357
PB 6 PG 61 PB 6 PG 61
DB 6094 PG 384
JASON M. ANDERSON
PB 6 PG 61
DB 5335 PG 149
DAVID M. BELCHER
PB 6 PG 61
TRUSTEE
O. WARD
WILLIAM
PG 104
DB 5485255255255
255
255
255
255 255
255255260260
260260260
260
265265265265270270 270270270270270270R/W SHEET NO.
SHEET NO.PROJECT REFERENCE NO.
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED5/14/99EB-5721
421 FAYETTEVILLE STREET, SUITE 600
CONST. REV.
RIGHT-OF-WAY REV.
C 2018
RALEIGH, NC 27601
2/8/2021K:\RAL_Roadway\011159024 - EB-5721 (Fordham Blvd)\Plan\Erosion Control\EB-5721_EC_psh_3.dgnEC-3
MATCH LINE -L- STA 32+00 (SEE SHEET EC-4)MATCH LI
NE
-L-
STA 24+50
(SEE SHEET EC-2)
NSRS 2007
ENGINEERENGINEER
ROADWAY DESIGN
PROFESSION
ALE
NG INEER
NORTH CAR
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A
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WPROFESSIONALENGINEER
NORTH CAR
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024436
REMOVE 18" RCP
w/ 18" RCP
REPLACE EXISTING 12" RCP
PIPE OUTLET
CLEAN OUT
0601
0602
0603
0608
0606
0604
0607
0605
CB
CB
CBCB
15" RCP-IV
15" RCP-IVOO
100-YR FLOODPLAIN500-YR FLOODPLAINFLOODWAYSYSTEM
RETAIN
RETAIN
CLEAN OUT EXIST INLET
100
-YR
FLOODPLA
IN25+0030+00F
F
F
F
F
F
F
F
F F
F
C
C
C
C
C
C
C
C
C
LIMITS (TYP)
FENCE 2' FROM CONSTRUCTION
INSTALL TREE PROTECTION
INSTALL TEMPORARY ROCK PIPE INLET SEDIMENT TRAP, TYPE B AT INLET OF 18' PIPE
WITH 1.0' WEIR HEIGHT
INSTALL TEMPORARY ROCK SILT CHECK TYPE A
ENTRANCE
CONSTRUCTION
INSTALL GRAVEL
ENTRANCE
CONSTRUCTION
INSTALL GRAVEL
ENTRANCE
CONSTRUCTION
INSTALL GRAVEL
ENTRANCE
CONSTRUCTION
INSTALL GRAVEL
LIMITS (TYP)
2' FROM CONSTRUCTION
INSTALL SILT FENCE
LIMITS OF DISTURBANCE (TYP)
AROUND TOP OF PIPE.
WRAP TEMPORARY SILT FENCE
26526526526526527027027027027027048" WIRE
48" WIRE
48" WOOD/WIRE 48" WOOD
48" CHL15" RCPAT&T CORP.
TOP=263.08'
CB
INV OUT=257.50'
FOUND
END NOT
N 84°31'49" W130.39'N 84°07'03" W130.36'N 84°05'19" W130.24'N 84°05'19" W130.12'N 84°05'19" W130.00'N 83°54'03" W130.00'N 80°53'19" W131.42'S 61°18'31" E158.50'N 42°19'43" W106.08'EIP EIP EIP
EXIST R/WEXIST R/WEXIST R/W
EXIST R/WEXIST R/W
EXI
ST R/WPB 6 PG 19
DB 6385 PG 243
TABITHA S. COMBS
PB 6 PG 19
DB 4833 PG 162
PHILIP H. PAGE
DB 6338 PG 391
MATTHEW STEERE
PB 6 PG 19 PB 6 PG 19
MAURICIO CASTRO
DB 1626 PG 251
DB 2834 PG 121
RICHARD SCOLTOCK
PB 6 PG 19 PB 6 PG 19
DB 4972 PG 7
PATRICIA R. THOMAS
PB 6 PG 19
DB 5630 PG 247
JOHN E. MOORE
PB 6 PG 61
DB 4423 PG 142
MARI A. LINDSAY
PB 6 PG 61
PG 104
DB 5485
TRUSTEE
O. WARD
WILLIAM 2652652652652652652652702702702702702702702
7
0
270
2
7
0
2702 7 0 270270270270270270270
270270R/W SHEET NO.
SHEET NO.PROJECT REFERENCE NO.
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED5/14/99EB-5721
421 FAYETTEVILLE STREET, SUITE 600
CONST. REV.
RIGHT-OF-WAY REV.
C 2018
RALEIGH, NC 27601
2/8/2021K:\RAL_Roadway\011159024 - EB-5721 (Fordham Blvd)\Plan\Erosion Control\EB-5721_EC_psh_4.dgnEC-4
MATCH LINE -L- STA 32+00 (SEE SHEET EC-3)MATCH LINE -L- STA 39+50 (SEE SHEET EC-5)ENGINEERENGINEER
ROADWAY DESIGN
PROFESSION
ALE
NG INEER
NORTH CAR
O
LIN
A
.
J
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E
M O ORE
WPROFESSIONALENGINEER
NORTH CAR
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024436
NAD 83/NSRS 2007
100-YR FLOODPLAIN
500-YR FLOODPLAIN
CLEAN OUT EXIST OEP 35+00C
C
C
C
C
F
C
F
C F
F
C
F
C
F
C
F
F
C
F C
LIMITS (TYP)
FENCE 2' FROM CONSTRUCTION
INSTALL TREE PROTECTION
LIMITS (TYP)
2' FROM CONSTRUCTION
INSTALL SILT FENCE
LIMITS OF DISTURBANCE (TYP)
260260260265270GPS-3
GPS-4
DI
TOP=258.79'
INV IN=255.61'
INV OUT=253.73'
INV=252.72'
72" WOOD
48" CHL
30" C&G30" C&GCONC SW48" SPLIT RAIL
36" PLASTIC HHHH
HH
HHHH
T
HH
HH S
CB
TOP=264.64'
INV OUT=257.94'15" RCP15" RCP
LP
TOWN OF CHAPEL HILL
LP
LP
6 ", DI, OWASA
PUBLIC SERVICE COMPANY OF NC INC., 4 "
8 ", DI, OWASA
AT&T CORP., MULTI CONDUIT DUCT BANKWOOD72"N 84°05'19" W99.63'N 26°31'53" E101.54'S 84°20'43" E130.00'N 84°23'08" W130.00'N 84°23'08" W130.00'S 84°37'59" E125.00'N 05°12'52" E
105.50'S 47°01'32" E86.60'S 07°46'33" W
16.70'S 85°04'07" E50.88'60
.00
'
60.00'
EIP EIP EIP EIP
60.00'EXIST R/W EXIST R/W
EXIST R/WEXIST R/W
EXIST R/WEXIST R/WEXIST R/WEXIST R/WEXIST R/WEXIST R/WEXIST R/W
EXIST R/WDB 5887 PG 400
PB 9 PG 83
FOUNDATION INC
BOTANICAL GARDEN
DB 415 PG 137
ENDOWMENT FUND
UNIVERSITY OF NC
LIFT STATION
CHAPEL HILL
N/A
DB 371 PG 509
WILLIAM D. BLAKE JR.
PB 9 PG 83PB 6 PG 61
NO DEED REFERENCE
WILLIAM D. BLAKEDANIEL D. POWERS
DB 655 PG 475
PB 6 PG 61PB 6 PG 19
DB 6362 PG 371
ALEXANDER M. BOTROS
PB 6 PG 19
RACHEL HOLLEY
DB 4741 PG 366
255255255255255255260260260260260260260260260260
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265270270
R/W SHEET NO.
SHEET NO.PROJECT REFERENCE NO.
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED5/14/99EB-5721
421 FAYETTEVILLE STREET, SUITE 600
CONST. REV.
RIGHT-OF-WAY REV.
C 2018
RALEIGH, NC 27601
2/8/2021K:\RAL_Roadway\011159024 - EB-5721 (Fordham Blvd)\Plan\Erosion Control\EB-5721_EC_psh_5.dgnEC-5
MATCH LINE -L- STA 39+50 (SEE SHEET EC-4)ENGINEERENGINEER
ROADWAY DESIGN
PROFESSION
ALE
NG INEER
NORTH CAR
O
LIN
A
.
J
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E
M O ORE
WPROFESSIONALENGINEER
NORTH CAR
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024436
NAD 83/NSRS 2007
CLASS 'B' RIP RAP 0804
2GI 0803
JB W/ MH
CONVERT DI TO
0803
EXIST. CB
100-YR FLOODPLAIN
500-YR FLOODPLAIN45+0040+00C
C
C
C
C
F
F
F
F
F
F
F
F
F
F
C
C
ENTRANCE
CONSTRUCTION
INSTALL GRAVEL
ENTRANCE
CONSTRUCTION
INSTALL GRAVEL
ENTRANCE
CONSTRUCTION
INSTALL GRAVEL
LIMITS (TYP)
FENCE 2' FROM CONSTRUCTION
INSTALL TREE PROTECTION
LIMITS (TYP)
2' FROM CONSTRUCTION
INSTALL SILT FENCE
LIMITS OF DISTURBANCE (TYP)
R/W SHEET NO.
SHEET NO.PROJECT REFERENCE NO.
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED5/14/99EB-5721
421 FAYETTEVILLE STREET, SUITE 600
CONST. REV.
RIGHT-OF-WAY REV.
C 2018
RALEIGH, NC 27601
Shoulders, Side Ditches, Slopes (3:1)
Date Type Planting Rate
Jun. 15-Aug. 15
(Nov. 1-Mar. 1)
combinations are possible.
those which do well under local conditions: other seeding rate
vegetation of denuded areas. The above vegetation rates are
for additional information concerning other alternatives for
Consult Conservation Engineer or Soil Conservation Service
or Add Weeping Lovegrass
or Add Hulled Common Bermudagrass
Tall Fescue ***
& Browntop Millet ***
or Sorghum-Sudan Hybrids ***
(unhulled-unscarified)
& Tall Fescue
Add Abruzzi Rye
Sericea Lespedeza
may be shaded out.
grow over 12 inches in height before mowing, otherwise, fescue
desired permanent vegetation. Do not allow temporary cover to
*** Temporary - Reseed according to optimum season for
SEEDING SCHEDULE
Date Type
Aug. 15-Nov. 1
Nov. 1-Mar. 1
Mar. 1-Apr. 15
Mar. 1-Jun. 1
(Mar. 1-Jun. 30)
(Mar. 1-Apr. 15)
(Mar. 1-Jun. 30)
Jun. 1-Sep. 1
Sep. 1-Mar. 1
Tall Fescue
Tall Fescue
Tall Fescue
Tall Fescue
Slopes (3;1 to 2:1)
& Abruzzi Rye
Hulled Common Bermudagrass
& Browntop Millet ***
or Sorghum-Sudan Hybrids ***
Sericea Lespedeza (scarified)
and
Add Tall Fescue
25 lbs./acre
25 lbs./acre
12 lbs./acre
35 lbs./acre
30 lbs./acre
50 lbs./acre
5 lbs./acre
8 lbs./acre
35 lbs./acre
30 lbs./acre
70 lbs./acre
Apr. 15-Jun. 15
1)
2)
3)
4)
5)
6)
7)
seeded and planted to a depth of six inches.
After rough grading is completed, till soil in areas to be
disturbed areas to be vegetated.
Apply agricultural lime, fertilizer, and superphosphate to
40 lbs. 50% superphosphate/1000 sq. ft. (1750 lbs/acre)
35 lbs. 10-10-10 fertilizer/1000 sq. ft. (1500 lbs/acre)
90 lbs. limestone/1000 sq. ft. (2 tons/acre)
Seeding permanent grass.
November 15.
February 15 through May 15 or August 15 through
3.0 lbs. KY-31 tall fescue/1000 sq. ft. (130 lbs./acre) during
-OR-
sq. ft. during November 15 through February 15.
3.0 lbs. KY-31 tall fescue and 2.0 lbs. annual ryegrass/1000
of 3 inches.
Mulch around shubbery and trees with pine straw to depth
Temporary cover
-OR-
1.0 lbs. brown top millet/1000 sq. ft. May through August 25.
1.0 lbs. annual ryegrass/1000 sq. ft. August 25 through April.
Date
surface is uniform and free of large dirt clods.
Disk nutrients into soil to a depth of six inches until
1)
2)
3)
4)
5)
6)
7)
SEEDING SPECIFICATIONS
CONSTRUCTION SEQUENCE
MAINTENANCE PLAN
fine gravel or sand may be needed to protect the filter cloth.
Where large stones are used or machine placement is difficult, a 4-inch layer of
If extensive damage is suspected, remove and replace the entire sheet.
of filter material with a minimum overlap of 12 inches around the damaged area.
If damage occurs remove the riprap and repair the sheet by adding another layer
next section as required. Take care not to damage the cloth when placing riprap.
ground and where necessary, bury the lower end of the cloth or overlap with the
the overlap. Bury the upstream end of the cloth a minimum of 12 inches below
Overlap the edges by at least 12 inches, and space anchor pins every 3 ft along
Synthetic filter fabric - Place the cloth filter directly on the prepared foundation.
layers with minimal mixing.
specified depth. Where more than one layer of filter material is used, spread the
foundation is prepared. For gravel, spread filter stone in a uniform layer to the
Sand and gravel filter blanket - Place the filter blanket immediately after the ground
inside dimensions and grade of the riprap meet design specifications.
sufficiently to allow placement of the riprap in a manner such that the finished
will be at the elevation of the surrounding area. Channels should be excavated
material. Cut the subgrade sufficiently deep that the finished grade of the riprap
depressions with riprap. Remove brush, trees, stumps and other objectional
to a density approximating that of the surrounding undisturbed material or overfill
lines and grades shown on the plans. Compact any fill required in the subgrade
Subgrade Preparation - Prepare the subgrade for riprap and filter to the required
CONSTRUCTION SPECIFICATIONS
flow. Control of weed and brush growth may be needed in some locations.
vigorous condition to protect the area from erosion and scour during out-of-bank
immediately. Maintain all vegetation adjacent to the channel in a healthy,
look for indications of piping, scour holes, or bank failures. Make repairs
where concentrated flow enters. Carefully check stability at road crossings and
promptly. Give special attention to the outlet and inlet sections and other points
Inspect channels at regular intervals as well as after major rains, and make repairs
MAINTENANCE
riprap should be apparent.
of the riprap should blend with the surrounding area. No overfall or protrusion of
stone sizes to produce a relatively smooth, uniform surface. The finished grade
stones. Hand placing may be necessary to achieve the proper distribution of
The finished slope should be free of pockets of small stone or clusters of large
the stones.
stone sizes. Take care not to dislodge the underlying base or filter when placing
riprap by dumping through chutes or other methods that cause segregation of
final placement. Place riprap to its full thickness in one operation. Do not place
be obtained by selective loading at the quarry and controlled dumping during
a minimum of voids. The desired disbribution of stones throughout the mass may
of the filter. Place riprap so that if forms a dense, well-graded mass of stone with
Stone Placement - Placement of riprap should follow immediately after placement
RIP RAP (6.15)
LAND GRADING (6.02)
TOPSOILING (6.04)
GRASS-LINED CHANNELS (6.30)
VEGETATIVE PLAN (NCDENR 6.11)
retain sediment.
Sediment barriers - Use sediment fences or other barriers where necessary to
All stockpile areas used shall be stabilized with silt fence and seeded.
topsoil is stockpiled in small piles located near areas where they will be used.
traffic routes. On large sites, respreading is easier and more economical when
Select stockpile location to avoid slopes and natural drainageways, avoiding
STOCKPILING
basins, diversions, and other controls into place before stripping.
generally varies along a gradient from hilltop to toe of the slope. Put sediment
soil cores at several locations within each area to be stripped. Topsoil depth
but depth varies depending on the site. Determine depth of stripping by taking
roadbuilding, or compaction by equipment. A 4 to 6-inch stripping depth is common,
Strip topsoil only from those areas that will be disturbed by excavation, filling,
STRIPPING
identified by their extremely light weight when dry.
Organic soils such as mucks and peats do not make good topsoil. They can be
if it meets the other criteria listed above.
desirable; however, material excavated from deeper layers may be worth storing
Generally, the upper part of the soil, which is richest in organic matter, is most
thickness affect the ease of excavation and spreading of topsoil.
Soil factors such as rock fragments, slope, depth to water table, and layer
The depth of material meeting the above qualifications should be at least 2 inches.
Sodium - sodium adsorption ratio should be less than 12.
Soluble salts - should be less than 500 ppm.
it is less than 6.0.
Acidity - pH should be greater than 3.6 before liming, and liming is required if
greater than 1.5% by weight.
Organic matter content - (sometimes referred to as "humic matter") should be
soils such as peat or muck as topsoil.
loam, clay loam, and loamy sand are fair. Do not use heavy clay and organic
Texture - loam, sandy loam, and silt loam are best; sandy clay loam, silty clay
handling. Quality topsoil has the following characteristics:
Determine whether the quality and quantity of available topsoil justifies selective
MATERIALS
CONSTRUCTION SPECIFICATIONS
to avoid excessive mixing of topsoil into the subsoil.
After topsoil application, follow procedure for seedbed preparation, taking care
between topsoil and subsoil.
after spreading topsoil. A disk may be used to promote bonding at the interface
On slopes and areas that will not be mowed, the surface may be left rough
high-maintenance turf is to be established.
germination. Light packing with a roller is recommended where
but avoid excessive compaction, as it increases runoff and inhibits seed
Compact the topsoil enough to ensure good contact with the underlying soil,
water pockets.
topsoiling or other operations to prevent the formation of depressions or
wet or frozen. Correct any irregularities in the surface that result from
Do not spread topsoil while it is frozen or muddy or when subgrade is
SPREADING TOPSOIL
the soil to a depth of at least 6 inches before spreading topsoil.
the topsoil and subsoil. If no amendments have been incorporated, loosen
by disking or scarifying to a depth of at least 4 inches, to ensure bonding of
Roughening - Immediately prior to spreading the topsoil. loosen the subgrade
Incorporate lime to a depth of at least 2 inches by disking.
recommended by soil tests or specified for the seeding mixture to be used.
soil is composed of heavy clays, incorporate agricultural limestone in amounts
Liming of subsoil - Where the pH of the existing subsoil is 6.0 or less, or the
approved plan and do not alter them by adding topsoil.
Grading - Maintain grades on the areas to be topsoiled according to the
such as diversions, berms, dikes, waterways, and sediment basins.
Before spreading topsoil, establish erosion and sedimentation control practices
SITE PREPARATION
growth.
must be stabilized with permanent vegetation to control erosion and weed
Permanent vegetation - If stockpiles will not be used within 12 months they
formation of the stockpile.
as possible, no more than 30 working days or 120 calendar days after the
Temporary seeding - Protect topsoil stockpiles by temporarily seeding as soon
250 lbs./acre
250 lbs./acre
250 lbs./acre
250 lbs./acre
250 lbs./acre
250 lbs./acre
250 lbs./acre
at a rate of 450 gallons emulsion per acre of straw.
of all drainage swales, tack mulch with asphalt emulsion
surface equals or exceeds a 3:1 slope, and in the inverts
sunlight to seedlings. On areas where the ground
of ground surface should be visible to avoid blocking
sq. ft. (2 tons/acre). Spread uniformly. Approximately•
Mulch seeded area with small grain straw at 90 lbs/1000
is an essential part of an effective erosion and sedimentation control plan.
maintenance of small eroded areas before they become significant gullies
washouts or breaks occur, repair them immediately. Prompt
remove all sediment from diversion and other water-disposal practices. If
sedimentation control practices, especially after heavy rainfalls. Promptly
Periodically check all graded areas and the supporting erosion and
MAINTENANCE
stabilization of these areas in the plan.
make sure they are adequately protected from erosion. Include final
12. Show topsoil stockpiles, borrow areas, and spoil areas on the plans, and
15 working days or longer.
measures on all graded areas when work is to be interrupted or delayed for
completed on each area in the grading plan. Apply temporary stabilization
11. Permanently stabilize all graded areas immediately after final grading is
with approved methods.
10. Handle seeps or springs encountered during construction in accordance
during all phases of development.
9. Keep diversions and other water conveyance measures free of sediment
slippage.
8. Do not place fill on a frozen foundation, due to possible subsidence and
materials into fill slopes.
7. Do not incorporate frozen material or soft or highly compressible
related problems.
the layers as required to reduce erosion, slippage, settlement, or other
6. Place all fill in layers not to exceed 9 inches in thickness, and compact
building debris, and other materials inappropriate for constructing stable fills.
5. Ensure that fill material is free of brush, rubbish, rocks, logs, stumps,
other objectionable material that would affect the planned stability of the fill.
4. Clear and grub areas to be filled to remove trees, vegetation, roots, or
placing topsoil.
3. Scarify areas to be topsoiled to a minimum depth of 2 inches before
it for use in finishing the grading of all critical areas.
2. Remove good topsoil from areas to be graded and filled, and preserve
construction schedule.
measures in accordance with the approved sedimentation control plan and
1. Construct and maintain all erosion and sedimentation control practices and
CONSTRUCTION SPECIFICATIONS
GRASS-LINED CHANNELS (6.30)
the channel freely.
3. Remove and properly dispose of all excess soil so that surface water may enter
preparations and sod buildup.
during seedbed
plans plus a 0.2-ft overcut around the channel perimeter to allow for bulking
2. Excavate the channel and shape it to neat lines and dimensions shown on the
foundation area and dispose of properly.
1. Remove all trees, brush, stumps, and other objectionable material from the
CONSTRUCTION SPECIFICATIONS
protection for the channel.
condition at all times, since it is the primary erosion
carrying capacity. Keep the grass in a healthy, vigorous
significant sediment accumulations to maintain the designed
stability and evidence of piping or scour holes. Remove all
check the channel outlet and all road crossings for bank
Immediately make repairs. It is particularly important to
check the channel; check it after every heavy rainfall event.
after every rainfall. After grass is established, periodically
During the establishment period, check grass-lined channels
MAINTENANCE
velocities during the establishment period.
a temporary liner sufficient to withstand anticipated
selection of species. Protect the channel with mulch or
will depend upon the severity of the conditions and
1. The procedure used to establish grass in the channel
CONSTRUCTION SPECIFICATIONS
EC-6
ENGINEERENGINEER
ROADWAY DESIGN
PROFESSION
ALE
NG INEER
NORTH CAR
O
LIN
A
.
J
YERFF
E
M O ORE
WPROFESSIONALENGINEER
NORTH CAR
O
LIN
A
.
J
YERFF
E
M O ORE
W
SEAL
024436
new NCGO1 permit regardless of when they are approved.
Notice of Intent (e-NOI) form. All construction activities are required to follow the
approved on or after April 1, 2019 are required to fill out and submit an electronic
this plan set. Please note that any construction activities that have an ES&C Plan
3. The Inspection, Recordkeeping, and Reporting Plan sheet is on sheet EC-12 of
until the e-NOT has been filled out.
Notice of Termination (e-NOT). A $100 annual general permit fee will be charged
inspection report, the permittee shall visit deq.nc.gov/ NCG01 to submit an electronic
the E&SC Plan. After DEMLR informs the permittee of the project close out, via
2. When the project is complete, the permittees shall contact DEMLR to close out
be kept on site, preferably in a permits box, and accessible during inspection.
approved. A copy of the E&SC permit, the COC, and a hard copy of the plan must
Please note, the e-NOI form may be only be filled out once the plans have been
filling out the electronic Notice of Intent (e-NOI) form at deq.nc.gov/ NCG01.
be obtained before any land disturbing activities occur. The COC can be obtained by
1. Erosion and Sediment Control (E&SC) permit and a certificate of coverage must
to the construction sequence:
The NCG01 permit became effective on April 1, 2019 and added the following notes
cannot access the form, please contact NCDEQ Land Quality Section at (919) 791-4200.
and PDF from at http://portal.ncdenr.org/web/lr/erosion. If you have questions or
15A NCAC 4B.0131. The Self-Inspection Report form is available as a Word Document
permanent ground cover is established in accordance with NCGS 113A-54.1 and
inspections must be conducted after each phase of the project, and continue until
and sedimentation control measures according to the approved plan. The
The focus of the self-inspection report is the installation/maintenance of erosion
for Construction Activities.
from the weekly self-monitoring program of the NPDES Stormwater Permit
inspections took effect October 1, 2010. The self-inspection program is separate
control plan is being followed. Rules detailing the documentation of these
phase of the project to make sure that the approved erosion and sedimentation
persons responsible for land-disturbing activities inspect a project after each
The Sedimentation Pollution Control Act was amended in 2006 to require that
Notification of Land Resources Sediment and Erosion Control Self-Inspection Program:
maintain management control.
construction activities are needed, amend the sequence schedule in advance to
and until permanent vegetation on the project is established. When changes in
during the demolition or clearing and grubbing phases as well as throughout the life of
and sediment control measures must be installed, maintained and adjusted as needed
Follow the construction sequence throughout project development. Adequate erosion
MAINTENANCE
inspector before any measures are removed.
maintenance and vegetative plan. Contractor must receive permission by project
removed, restored as existing, and permanently vegetated as described in the
and material area stockpile areas, and all other erosion control devices shall be
11. AFTER SITE IS STABILIZED, construction entrances, and construction staging
10. Site includes approximately 1.86 acres of permanent vegetation area.
9. Estimated time before final stabilization is 6 months.
after rainfall events. Needed repairs will be made immediately.
8. All erosion and sediment control practices will be inspected weekly and
devices maintained.
shall have temporary vegetative ground cover established and erosion control
ceases for more than the above mentioned length of time, all disturbed areas
areas and slopes shall be stabilized within 14 days. If work on the project
3:1, and high quality (HQW) zones should be stabilized within 7 days. All other
requirements. In summary, perimeter dikes, swales, ditches, slopes steeper than
Rules datedApril 2019 for more information on ground stabilization
or sooner of completion of any phase of grading. Refer to the latest NPDES
specifications to maintain a vigorous, dense, vegetative cover within 7 to 14 days
7. All graded areas will be seeded, fertilized and mulched according to NCDOT
and mulch.
6. Finish grading of slopes, topsoil critical areas and permanently vegetate, seed
5. Complete final grading for trail.
as necessary, place silt fence around all temporary crossings and culverts as needed.
stabilize 2:1 slopes as indicated. Modify silt fence placement around trail and outlets
place reinforced silt fence as shown. Place additional erosion control matting and
4. In accordance with the erosion control plans, grade trail, install crosspipes, and
erosion control devices.
protection fence, construction entrance, temporary stream crossings, and all other
3. Prior to any land disturbing (including demolition) activities, install silt/tree
2. Flag the work limits for protection.
and invite NCDEQ Regional LQS contact number is (919) 791-4200.
1. Hold preconstruction conference at least one week prior to starting construction
CONSTRUCTION SPECIFICATIONS
(919) 969-7246
6. Contact the The Town of Chapel Hill Stormwater Management for questions,
within 7 to 14 days or sooner following completion of construction or development.
requirements. Permanent ground cover is to be provided for all disturbed areas
latest NPDES Rules dated April 2019 for more information on ground stabilization
within 7 to 14 days or sooner of completion of any phase of grading. Refer to the
5. The Contractor shall provide ground cover on exposed slopes or other areas
vegetative cover.
according to specifications in the vegetative plan to maintain a vigorous, dense
4. The Contractor shall fertilize, reseed as necessary, and mulch all seeded areas
barrier.
feet deep at the fence. Silt fence will be repaired as necessary to maintain a
3. The Contractor shall remove sediment from behind silt fence when it becomes 0.5
the sediment pools no longer drains properly.
capacity has been approximately 50% filled. Gravel will be cleaned or replaced when
2. The Contractor shall remove sediment from erosion control devices when storage
and logged after every one inch of rainfall and once a week.
The rain gauge must be kept onsite and inspections by the Contractor must be made
System (NPDES) general stormwater permit, a rain gauge must be installed on site.
maintain all practices as designed. Also per National Pollutant Discharge Elimination
once every week. Any needed repairs will be made immediately by the Contractor to
and operation following every runoff producing rainfall but in no case less than
1. The Contractor shall check all erosion and sediment control practices for stability
R/W SHEET NO.
SHEET NO.PROJECT REFERENCE NO.
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED5/14/99EB-5721
421 FAYETTEVILLE STREET, SUITE 600
CONST. REV.
RIGHT-OF-WAY REV.
C 2018
RALEIGH, NC 27601
POLY BARRICADE FABRIC (TYPICAL)
HIGH-TENSILE STRENGTH,
ORANGE, UV RESISTANT,
VARIABLE AS DIRECTED BY THE ENGINEER
FRONT VIEW 32" MIN WIDTHPOLY BARRICADE FABRIC (TYPICAL)
HIGH-TENSILE STRENGTH,
ORANGE, UV RESISTANT,
WARNING SIGN
4"
4"
4"3'-0"2'-0"SIDE VIEW
WARNING SIGN DETAIL
18"
40"
3"
STEEL POST
WOVEN WIRE FABRIC
GRADE
3"
3"
NOTES
DO NOT ENTER
TREE PROTECTION AREA
DO NOT ENTER
TREE PROTECTION AREA
WARNING SIGN
10' O.C. MAXIMUM
TREE PROTECTION DETAIL
SIGNS SHALL BE INCIDENTAL TO THE FENCE.
BASED ON ACTUAL FIELD CONDITIONS.
ADDITIONAL SIGNS MAY BE REQUIRED BY THE CITY OR NCDENR,
MAINTAIN TREE PROTECTION FENCE THROUGHOUT DURATION OF PROJECT.
ATTACH SIGNS SECURELY TO FENCE POSTS AND FABRIC.
SIGN PER PROTECTION AREA.
FOR TREE PROTECTION AREAS LESS THAN 200' IN PERIMETER, PROVIDE NO LESS THAN ONE
PLACE A SIGN AT EACH END OF LINEAR TREE PROTECTION AND 50' ON CENTER THEREAFTER.
SIGNS SHALL BE PLACED AT 50' MAXIMUM INTERVALS.
LETTERS TO BE 3" HIGH MINIMUM, CLEARLY LEGIBLE AND SPACED AS DETAILED.
WARNING SIGNS TO BE MADE OF DURABLE, WEATHERPROOF MATERIAL.
Should the fabric of a tree protection fence collapse, tear, decompose or become ineffective, replace it promptly.
Inspect tree protection fences at least once a week and after each rainfall. Make any required repairs immediately.
MAINTENANCE:
J-HOOK DETAIL
TOP WITH WIRE.
ADJACENTLY AND BIND AT
PLACE POSTS (STAKES)
SHEET FLOW SHEET FLOW
J-HOOK J-HOOK
SILT FENCE J-HOOK PLACEMENT
FABRIC
CONTINUOUS FENCE
(AS NEEDED)
40-80' SPACING
METAL STAKE
TEMPORARY SILT FENCE DETAIL.
FOLLOW MAINTENANCE REQUIREMENTS FROM STANDARD
NOTE:
PREVENT ACCUMULATION AND UNDERMINING OF SILT FENCE.
TO DIRECT RUN-OFF TO SILT FENCE OUTLETS AND
NOTE: USE SILT FENCE J-HOOK PLACEMENT AS NEEDED
EC-7
ENGINEERENGINEER
ROADWAY DESIGN
PROFESSION
ALE
NG INEER
NORTH CAR
O
LIN
A
.
J
YERFF
E
M O ORE
WPROFESSIONALENGINEER
NORTH CAR
O
LIN
A
.
J
YERFF
E
M O ORE
W
SEAL
024436
R/W SHEET NO.
SHEET NO.PROJECT REFERENCE NO.
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED5/14/99EB-5721
421 FAYETTEVILLE STREET, SUITE 600
CONST. REV.
RIGHT-OF-WAY REV.
C 2018
RALEIGH, NC 27601
EXTENDS TO TOP OF BOX
GALVANIZED HARDWARE WIRE
POSTS 2'-0" IN GROUND
STANDARDIZED METAL
ABOVE TOP OF BOX
TO A HEIGHT OF 12"-18" MIN.
#57 WASHED STONE PLACED
3'
2'
16"
2'
#57 STONE
2
1
METAL POST
2'
CONSTRUCTION SPECIFICATIONS
1. As synthetic fabric, use a previous sheet of nylon, polyester, or ethylene yarn - extra strength
(50 lb/1 inch minimum) - that contains ultraviolet ray inhibitors and stabilizers. Fabric should be
sufficiently porous to provide adequate drainage of the temporary sediment pool. Burlap may be
used for short-term applications. It must be replaced every 60 days.
2. Cut fabric from a continuous roll to eliminate joints.
3. For stakes, use 5-foot steel posts.
4. Space stakes evenly around the perimeter of the inlet a maximum of 4 ft apart, and securely
drive them into the ground, approximately 24 inches deep.
5. Place a 2 foot flap of wire mesh under the gravel for anchoring.
6. Fasten fabric securely to the stakes and frame. Joints must be overlapped to the next stake.
7. The top of the frame and fabric must be well below the ground elevation downslope from
the drop inlet to keep runoff from bypassing the inlet. It may be necessary to build a temporary
dike on the down slope side of the structure to prevent bypass flow. Material from within the
sediment pool may be used for diking.
MAINTENANCE
Inspect the fabric barrier after each rain and make repairs as needed.
Remove sediment from the pool area as necessary to provide adequate storage volume for the
next rain. Take care not to damage or undercut the fabric during sediment removal.
8. #57 washed stone shall be paid for at the contract unit price per ton
"Sediment Control Stone."
CLOTH
‚" HARDWARE
HARDWARE CLOTH AND GRAVEL INLET PROTECTION DETAIL (6.51)
*REVISED TO MEET NCDEQ REQUIREMENTS
GUTTER
PIPE
GEOTEXTILE BAG
BLOCK (TYP)
RUBBER
2"X2"X3/4"
SACK
INSTALLED FILTER
PROFILE VIEW OF
PERMITTIVITY
FLOW RATE
APPARENT OPENING SIZE
UV RESISTANCE
TRAPEZOID TEAR
MULLEN BURST
PUNCTURE
GRAB TENSILE ELONGATION
GRAB TENSILE STRENGTH
PROPERTIES TEST METHOD UNITS
PERMITTIVITY
FLOW RATE
APPARENT OPENING SIZE
UV RESISTANCE
TRAPEZOID TEAR
MULLEN BURST
PUNCTURE
GRAB TENSILE ELONGATION
GRAB TENSILE STRENGTH
PROPERTIES TEST METHOD UNITS
LOW TO MODERATE FLOW GEOTEXTILE FABRIC SPECIFICATION TABLE
MODERATE TO HIGH FLOW GEOTEXTILE FABRIC SPECIFICATION TABLE
RESTRAINT
EXPANSION
ROPE
COLORED NYLON
1/4" BRIGHTLY
ELEVATION VIEW
RESTRAINT
NYLON ROPE EXPANSION
1/4" BRIGHTLY COLORED
(SEE DETAIL)
PROTECTION
FILTER SACK INLET
non-degradable materials.
with ultraviolet stabilizers or a seamless, high-density polyethylene
of seamless, high-density polyethylene photodegradable materials treated
leaf mulch under this specification. Utilize an outer netting that consists
netting material. Do not use straw, straw fiber, straw bales, pine needles or
fibers or hardwood mulch or a mix of these materials enclosed by a flexible
Composed of compacted geotextiles, curled excelsior wood, natural coconut
Produced by a Manufacturer experienced in sediment tube manufacturing.
Use inlet tubes that exhibit the following properties:
Materials
Inlet Tubes
ISOMETRIC VIEW
(IF NEEDED)
OR SILT FENCE
SEDIMENT TUBE
DEBRIS FROM ENTERING INLETS DURING CONSTRUCTION.
NOTE: USE INLET TUBES AS NEEDED TO PREVENT SILT AND
(OPTIONAL)
OVERFLOW HOLES
LOCATION.
COLLECTION
SEDIMENT
SACK AT A
TO EMPTY FILTER
REBAR FOR A HANDLE
1" REBAR. USE
LOOPS SIZED FOR
FOR HANDLES.
INLET USING REBAR
FILTER BAG FROM
1" REBAR. LIFT
LOOPS SIZED FOR
ASTM D-4491
ASTM D-4491
ASTM D-4751
ASTM D-4355
ASTM D-4533
ASTM D-3786
ASTM D-4833
ASTM D-4632
ASTM D-4632
0.55 SEC -1
40 GAL/MIN/SQ FT
40 US SIEVE
80 %
120 LBS
800 PSI
120 LBS
20 %
300 LBS
ASTM D-4491
ASTM D-4491
ASTM D-4751
ASTM D-4355
ASTM D-4533
ASTM D-3786
ASTM D-4833
ASTM D-4632
ASTM D-4632
1.5 SEC -1
200 GAL/MIN/SQ FT
20 US SIEVE
90 %
45 LBS
420 PSI
135 LBS
20 %
265 LBS
SURFACE.
OR UNDER SURROUNDING
SECURE LIFTING LOOPS TO INLET GRATE
INLET BOX.
MATCH THE INSIDE LENGTH OF THE GRATED
THE LENGTH, "L", OF THE FILTER SACK WILL 7.
BE BETWEEN 18 INCHES AND 36 INCHES.
THE DEPTH, "D", OF THE FILTER SACK WILL 6.
INLET BOX.
MATCH THE INSIDE WIDTH OF THE GRATED
THE WIDTH, "W", OF THE FILTER SACK WILL 5.
INSPECT PER REGULATORY REQUIREMENTS.4.
CONCERN.
PURCHASED WHEN OIL SPILLS ARE A
AN OIL ADSORBENT PAD OR PILLOW CAN BE 3.
SPECIFICATIONS TABLE.
EXCEEDS REQUIREMENTS IN THE
POLYPROPYLENE FABRIC THAT MEETS OR
GEOTEXTILE WILL BE A WOVEN 2.
SEEN.
EXPANSION RESTRAINT CAN NO LONGER BE
EMPTY FILTER SACK WHEN BRIGHTLY COLORED 1.
Inspector or Manufacturer's Representative at the contractor's expense.
Replace inlet tubes damaged during installation as directed by the
Inlet tubes may be temporarily moved during construction as needed.
Inspection and Maintenance:
underlying surface and the inlet tube.
Install inlet tubes lying flat on the ground, with no gaps between the
:Installation
NOT TO SCALE
INLET TUBES "SILT SOCK"FILTER SACK INLET PROTECTION
NOT TO SCALE
TUBE
SEDIMENT
WEIGHTED
not to damage the inlet protection device during sediment removal.
to provide adequate storage volume for the next rain. Take care
MAINTENANCE: Remove sediment from the pool area as necessary
Panicum rigidulum Redtop Panic Grass
Carex lupulina Hop Sedge
Juncus effusus Soft Rush
Carex lurida Lurid (shallow) Sedge
Scirpus cyperinus Wool Grass
Saururus cernuus Lizard's Tail
Carex squarrosa Squarrose Sedge
SPECIES NAME COMMON NAME
2. APPLICATION RATE OF 20 LBS/AC
1. SIMILAR SEED MIX CAN BE USED WITH ENGINEER'S APPROVAL.
1WETLAND SEED MIX
60
10
10
7
5
4
4
MIX PERCENTAGE 2
SCIENTIFIC NAME COMMON NAME
Red TopAgrostis alba
Virginia Wild RyeElymus virginicus
SwitchgrassPanicum virgatum
Gamma GrassTripsicum dactyloides
Pennsylvania SmartweedPolygonum pennsylvanicum
Little BluestemSchizachyrium scoparium
Soft RushJuncus effusus
TickseedBidens aristosa
Lance-leaved coreopsisCoreopsis lanceolata
Deer TonguePanicim clandestinum
Big BluestemAndropogon gerardii
indiangrassSorgastrum nutans
1: A SIMILAR MIXTURE CAN BE USED WITH APPROVAL BY ENGINEER.
RIPARIAN BUFFER SEEDING PLAN 1
PER CENT COMPOSITION
10
15
15
5
5
5
5
10
10
5
5
10
HERBACEOUS, PERMANENT SEED MIXTURE LABELED "RIPARIAN SEED MIX"
PER ACRE SHALL BE USED FOR SEEDING. THE FOLLOWING TABLE LISTS
A RIPARIAN SEED MIX AT THE RATE OF ¼ LB PER 1,000 SQ FT OR 10 LBS
EC-8
remove all objectionable materials spilled, washed, or tracked onto public roadways.
topdressing with 2-inch stone. After each rainfall, inspect any structure used to trap sediment and clean it out as necessary. Immediately
Maintain the stone pad in a condition to prevent mud or sediment from leaving the construction site. This may require periodic
MAINTENANCE:
ENGINEERENGINEER
ROADWAY DESIGN
PROFESSION
ALE
NG INEER
NORTH CAR
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024436
R/W SHEET NO.
SHEET NO.PROJECT REFERENCE NO.
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED5/14/99EB-5721
421 FAYETTEVILLE STREET, SUITE 600
CONST. REV.
RIGHT-OF-WAY REV.
C 2018
RALEIGH, NC 27601
BEEN PROPERLY STABILIZED.
PROTECTION MEASURE DURING CLEANOUT. REMOVE ALL INLET PROTECTION MATERIALS AND UNSTABLE SEDIMENT DEPOSITS AND BRING THE AREA TO GRADE AND STABILIZE IT AFTER THE CONTRIBUTING DRAINAGE AREA HAS
PROMPTLY. REMOVE SEDIMENT DEPOSITS AS NECESSARY TO PROVIDE ADEQUATE FUNCTION FOR THE NEXT RAIN AND TO REDUCE PRESSURE ON THE INLET PROTECTION MEASURE. TAKE CARE TO AVOID UNDERMINING THE INLET
INSPECT STANDARD PIPE INLET PROTECTION AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL. MAKE ANY REQUIRED REPAIRS IMMEDIATELY. SHOULD THE PLYWOOD COLLAPSE, BREAK, OR BECOME INEFFECTIVE, REPLACE IT
MAINTENANCE:
MAINTAIN DESIGN HEIGHT AND CROSS SECTION.
THE CHANNEL TO DRAIN THROUGH THE STONE SILT CHECK, AND PREVENT LARGE FLOWS FROM CARRYING SEDIMENT OVER THE DAM. ADD STONES TO DAMS AS NEEDED TO
LINER IN THAT PORTION OF THE CHANNEL. REMOVE SEDIMENT ACCUMULATED BEHIND THE DAROCK SILT CHECKS AS NEEDED TO PREVENT DAMAGE TO CHANNEL VEGETATION, ALLOW
FROM HIGH FLOWS AROUND THE EDGES OF THE DAM. CORRECT ALL DAMAGE IMMEDIATELY. IF SIGNIFICANT EROSION OCCURS BETWEEN SILT CHECKS, INSTALL A PROTECTIVE RIPRAP
INSPECT ROCK SILT CHECKS AND CHANNELS FOR DAMAGE AFTER EACH RUNOFF EVENT. ANTICIPATE SUBMERGENCE AND DEPOSITION ABOVE THE ROCK SILT CHECK AND EROSION
MAINTENANCE:
STORM DRAIN UNDER CONSTRUCTION
STONE FILTER INLET PROTECTION FOR
Across Pipe Inlet
Washed Stone Filter
Steel Fence Post Storm Drain
Upstream End of
Across Pipe Inlet
Washed Stone Filter
Steel Fence Post Storm Drain
Upstream End of
UNIT PRICE PER LINEAR FOOT OF PIPE CULVERT INSTALLATION.
STONE FILTER INLET PROTECTION WILL BE CONSIDERED INCIDENTAL TO THE CONTRACT
Hardware Cloth
Overflow
Diameter
1/3 Pipe
Hardware Cloth
Overflow
Diameter
1/3 Pipe
STORM DRAIN UNDER CONSTRUCTION
PLYWOOD INLET PROTECTION FOR
Upstream End of Storm Drain
3/4" Exterior Plywood
Diameter
1/3 Pipe
Upstream End of Storm Drain
3/4" Exterior Plywood
Diameter
1/3 Pipe
PLYWOOD INLET PROTECTION WILL BE CONSIDERED INCIDENTAL TO THE CONTRACT
Trench
Bury Bottom of Plywood
Trench
Bury Bottom of Plywood
UNIT PRICE PER LINEAR FOOT OF PIPE CULVERT INSTALLATION.
EC-9
ENGINEERENGINEER
ROADWAY DESIGN
PROFESSION
ALE
NG INEER
NORTH CAR
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024436
R/W SHEET NO.
SHEET NO.PROJECT REFERENCE NO.
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED5/14/99EB-5721
421 FAYETTEVILLE STREET, SUITE 600
CONST. REV.
RIGHT-OF-WAY REV.
C 2018
RALEIGH, NC 27601
5. MONITOR AND REPAIR THE RECP AS NECESSARY UNTIL GROUND COVER IS ESTABLISHED.
4. IF EROSION OCCURS DUE TO POORLY CONTROLLED DRAINAGE, THE PROBLEM SHALL BE FIXED AND THE ERODED AREA PROTECTED.
3. ANY AREAS OF THE RECP THAT ARE DAMAGED OR NOT IN CLOSE CONTACT WITH THE GROUND SHALL BE REPAIRED AND STAPLED.
2. GOOD CONTACT WITH THE GROUND MUST BE MAINTAINED, AND EROSION MUST NOT OCCUR BENEATH THE RECP.
1. INSPECT ROLLED EROSION CONTROL PRODUCTS (RECP) AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT (1/2 INCH OR GREATER) RAIN FALL EVENT REPAIR IMMEDIATELY.
MAINTENANCE:
ELEVATION VIEW
NATURAL GROUND
NATURAL GROUND
FLOW
1' MIN.
1' MIN.
CROSS SECTION
CROSS SECTION
TRAPEZOIDAL DITCH
VEE DITCH
12" MIN.
SILT BASIN
OPTIONAL TYPE "B"4'-6"
EDGE OF PAVEMENT
ISOMETRIC VIEW
PAVEMENT
SHLD.
DITCH CHECK
TEMP. STONE
SLOPE
BACK
SLOPEDITCH
TRAP
SEDIMENT
12"
STRUCTURAL STONE
BASE OF DITCH
CONTROL STONE
12" THICK SEDIMENT
1633.02 1633.02
1 1 1 1TEMPORARY ROCK SILT CHECK TYPE `B'TEMPORARY ROCK SILT CHECK TYPE `B'RALEIGH, N.C.DIVISION OF HIGHWAYSDEPT. OF TRANSPORTATIONNORTH CAROLINASTATE OF RALEIGH, N.C.DIVISION OF HIGHWAYSDEPT. OF TRANSPORTATIONNORTH CAROLINASTATE OFSHEET OF SHEET OFENGLISH STANDARD DRAWING FORENGLISH STANDARD DRAWING FORAS DIRECTED BY THE ENGINEER.
CONTROL. PLACE SEDIMENT CONTROL STONE
USE NO. 5 OR NO. 57 STONE FOR SEDIMENT
GRADE LESS THAN 3%.
ONE (1) ACRE DRAINAGE AREA AND A DITCH
CLASS "A" STONE FOR SITES HAVING LESS THAN
THE ENGINEER MAY DIRECT THE OPTION OF
STRUCTURAL STONE.
USE CLASS 'B' EROSION CONTROL STONE FOR
NOTES:7-067-06EC-10
FLOW
FLOW
PLAN
SECTION A-A
A
STRUCTURAL STONE
SEDIMENT CONTROL STONE 18" PIPE MAX.
12"
A
ROADWAY SHOULDER
12" MIN12" MIN
DIVERSION POINT
D
D2:12:1MIN.
18"
7'-6" MIN.
MIN.
18"
PIPE
SEDIMENT CONTROL STONE
STRUCTURAL STONE
1635.02 1635.02
1 1 1 1ROCK PIPE INLET SEDIMENT TRAP TYPE `B'ROCK PIPE INLET SEDIMENT TRAP TYPE `B'RALEIGH, N.C.DIVISION OF HIGHWAYSDEPT. OF TRANSPORTATIONNORTH CAROLINASTATE OF RALEIGH, N.C.DIVISION OF HIGHWAYSDEPT. OF TRANSPORTATIONNORTH CAROLINASTATE OFSHEET OF SHEET OFENGLISH STANDARD DRAWING FORENGLISH STANDARD DRAWING FORCONTROLS.
OTHER UP OR DOWNSTREAM
VOLUME MAY BE PROVIDED BY
AREA. SOME OF THE REQUIRED
FEET PER ACRE OF DISTURBED
TRAP VOLUME OF 1800± CUBIC
PROVIDE A TOTAL SEDIMENT
DIVERSION POINT.
BELOW THE SHOULDER OR
A MINIMUM OF ONE FOOT
CONSTRUCT TOP OF BERM
FOR SEDIMENT CONTROL.
USE NO. 5 OR NO. 57 STONE
STRUCTURAL STONE.
CONTROL STON FOR
USE CLASS 'A' EROSION
NOTE:7-067-06ENGINEERENGINEER
ROADWAY DESIGN
PROFESSION
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024436
EC-11
R/W SHEET NO.
SHEET NO.PROJECT REFERENCE NO.
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED5/14/99EB-5721
421 FAYETTEVILLE STREET, SUITE 600
CONST. REV.
RIGHT-OF-WAY REV.
C 2018
RALEIGH, NC 27601
NCG01 GROUND STABILIZATION AND MATERIALS HANDLING EFFECTIVE: 04/01/19
may not apply depending on site conditions and the delegated authority having jurisdiction.
delegated authority having jurisdiction. All details and specifications shown on this sheet
permittee shall comply with the Erosion and Sediment Control plan approved by the
sections of the NCG01 Construction General Permit (Sections E and F, respectively). The
activity being considered compliant with the Ground Stabilization and Materials Handling
Implementing the details and specifications on this plan sheet will result in the construction
THE NCG01 CONSTRUCTION GENERAL PERMIT
GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH
techniques in the table below:
Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the
GROUND STABILIZATION SPECIFICATION
Do not store hazardous chemicals, drums or bagged materials directly on the ground.3.
Place hazardous waste containers under cover or in secondary containment.2.
Create designated hazardous waste collection areas on-site.1.
HAZARDOUS AND TOXIC WASTE
to a recycling or disposal center that handles these materials.
Bring used fuels, lubricants, coolants, hydraulic fluids and other petroleum products 6.
problem has been corrected.
Remove leaking vehicles and construction equipment from service until the 5.
hazardous waste (recycle when possible).
Collect all spent fluids, store in separate containers and properly dispose as 4.
project.
Identify leaks and repair as soon as feasible, or remove leaking equipment from the 3.
Provide drip pans under any stored equipment.2.
Maintain vehicles and equipment to prevent discharge of fluids.1.
EQUIPMENT AND VEHICLE MAINTENANCE
On business days, clean up and dispose of waste in designated waste containers.9.
Dispose waste off-site at an approved disposal facility.8.
containers overflow.
Empty waste containers as needed to prevent overflow. Clean up immediately if 7.
Anchor all lightweight items in waste containers during times of high winds.6.
provide secondary containment. Repair or replace damaged waste containers.
Cover waste containers at the end of each workday and before storm events or 5.
from upland areas and does not drain directly to a storm drain, stream or wetland.
Locate waste containers on areas that do not receive substantial amounts of runoff 4.
waters unless no other alternatives are reasonably available.
Locate waste containers at least 50 feet away from storm drain inlets and surface 3.
receptacle) on site to contain construction and domestic wastes.
Provide a sufficient number and size of waste containers (e.g dumpster, trash 2.
Never bury or burn waste. Place litter and debris in approved waste containers.1.
LITTER, BUILDING MATERIAL AND LAND CLEARING WASTE
with properly operating unit.
Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace
Monitor portable toilets for leaking and properly dispose of any leaked material. 3.
high foot traffic areas.
Provide staking or anchoring of portable toilets during periods of high winds or in 2.
on a gravel pad and surround with sand bags.
offset is not attainable, provide relocation of portable toilet behind silt fence or place
streams or wetlands unless there is no alternative reasonably available. If 50 foot
Install portable toilets on level ground, at least 50 feet away from storm drains, 1.
PORTABLE TOILETS
Do not stockpile these materials onsite.4.
or surface water. If a spill occurs, clean area immediately.
possible or where they may spill or leak into wells, stormwater drains, ground water
Do not store herbicides, pesticides and rodenticides in areas where flooding is 3.
accidental poisoning.
label, which lists directions for use, ingredients and first aid steps in case of
Store herbicides, pesticides and rodenticides in their original containers with the 2.
restrictions.
Store and apply herbicides, pesticides and rodenticides in accordance with label 1.
HERBICIDES, PESTICIDES AND RODENTICIDES
caused by removal of washout.
in an approved disposal facility. Fill pit, if applicable, and stabilize any disturbance
At the completion of the concrete work, remove remaining leavings and dispose of 10.
products, follow manufacturer's instructions.
components when no longer functional. When utilizing alternative or proprietary
overflow events. Replace the tarp, sand bags or other temporary structural
Remove leavings from the washout when at approximately 75% capacity to limit 9.
limits. Post signage on the washout itself to identify this location.
Install at least one sign directing concrete trucks to the washout within the project 8.
approving authority.
entrance pad in front of the washout. Additional controls may be required by the
Locate washouts in an easily accessible area, on level ground and install a stone 7.
spills or overflow.
install protection of storm drain inlet(s) closest to the washout which could receive
can be shown that no other alternatives are reasonably available. At a minimum,
Locate washouts at least 50 feet from storm drain inlets and surface waters unless it 6.
be pumped out and removed from project.
discharged to the storm drain system or receiving surface waters. Liquid waste must
sections. Stormwater accumulated within the washout may not be pumped into or
Do not use concrete washouts for dewatering or storing defective curb or sidewalk 5.
types of temporary concrete washouts provided on this detail.
review and approval. If local standard details are not available, use one of the two
alternate method or product is to be used, contact your approval authority for
Install temporary concrete washouts per local requirements, where applicable. If an 4.
lot perimeter silt fence.
addition place the mixer and associated materials on impervious barrier and within
Manage washout from mortar mixers in accordance with the above item and in 3.
and state solid waste regulations and at an approved facility.
Dispose of, or recycle settled, hardened concrete residue in accordance with local 2.
Do not discharge concrete or cement slurry from the site.1.
CONCRETE WASHOUTS
erosion on disturbed soils for temporary or permanent control needs.
as vegetative, physical or chemical coverage techniques that will restrain accelerated
with the approved plan and any additional requirements. Soil stabilization is defined
Stabilize stockpile within the timeframes provided on this sheet and in accordance 4.
Provide stable stone access point when feasible.3.
five feet from the toe of stockpile.
Protect stockpile with silt fence installed along toe of slope with a minimum offset of 2.
available.
and surface waters unless it can be shown no other alternatives are reasonably
50 feet away from storm drain inlets, sediment basins, perimeter sediment controls
Show stockpile locations on plans. Locate earthen-material stockpile areas at least 1.
EARTHEN STOCKPILE MANAGEMENT
A
A
BELOW GRADE WASHOUT STRUCTURE
(TYP.)
SIDE SLOPE
1:1
10 MIL
PLASTIC
LINING
3'-0"MAX.& X'MIN.SECTION A-A
NOT TO SCALE
ABOVE GRADE WASHOUT STRUCTURE
NOT TO SCALE
PLAN
SECTION B-B
HIGH
COHESIVE &
LOW FILTRATION
SOIL BERM
8"6"
2'
HIGH
COHESIVE &
LOW FILTRATION
SOIL BERM
(TYP.)
1:1 SIDE SLOPE
PLASTIC LINING
10 MIL
B
B
3'-0"MAX.& X'MIN.A
OR STAPLES
SANDBAGS (TYP.)
OR STAPLES
SANDBAGS (TYP.)
OR STAPLES
SANDBAGS (TYP.)
OR STAPLES
SANDBAGS (TYP.)
CLEARY MARKED WITH SIGNAGE NOTING DEVICE.
3.CONCRETE WASHOUT STRUCTURE NEEDS TO BE
REACHES 75% OF THE STRUCTURES CAPACITY.
BE MAINTAINED WHEN THE LIQUID AND/OR SOLID
2. THE CONCRETE WASHOUT STRUCTURES SHALL
1. ACTUAL LOCATION DETERMINED IN FIELD
NOTES:
SIGNAGE NOTING DEVICE.
NEEDS TO BE CLEARY MARKED WITH
3.CONCRETE WASHOUT STRUCTURE
INCHES OF FREEBOARD.
HOLDING CAPACITY WITH A MINIMUM 12
CAPACITY TO PROVIDE ADEQUATE
REACHES 75% OF THE STRUCTURES
WHEN THE LIQUID AND/OR SOLID
STRUCTURES SHALL BE MAINTAINED
2. THE CONCRETE WASHOUT
FIELD
1. ACTUAL LOCATION DETERMINED IN
NOTES:
STRUCTURE WITH LINER
ONSITE CONCRETE WASHOUT
WASHOUT
CONCRETE
WASHOUT
CONCRETE
PLAN
NOTING DEVICE (18"X24" MIN.)
CLEARLY MARKED SIGNAGE
NOTING DEVICE (18"X24" MIN.)
CLEARLY MARKED SIGNAGE
SILT FENCE
MIN10' MIN
10'
SECTION E: GROUND STABILIZATION
Required Ground Stabilization Timeframes
surface stable against accelerated erosion until permanent ground stabilization is achieved.
activity. Temporary ground stabilization shall be maintained in a manner to render the
practicable but in no case longer than 90 calendar days after the last land disturbing
ground stabilization shall be converted to permanent ground stabilization as soon as
After the permanent cessation of construction activities, any areas with temporary Note:
Site Area Description
Timeframe variations
there is zero slope
-10 days for Falls Lake Watershed unless
ditches, perimeter slopes and HQW Zones
-7 days for perimeter dikes, swales,
land disturbance
days after ceasing
many calendar
Stabilize within this
7
7
7
14
None
None
perimeter slopes
swales, ditches, and
Perimeter dikes, (a)
(HQW) Zones
High Quality Water (b)
3:1
Slopes steeper than (c)
allowed
not steeper than 2:1, 14 days are
If slopes are 10' or less in length and are
Slopes 3:1 to 4:1(d)
flatter than 4:1
Areas with slopes (e)
14
-10 days for Falls Lake Watershed
Zones
ditches, perimeter slopes and HQW
-7 days for perimeter dikes, swales,
length and with slopes steeper than 4:1
-7 days for slopes greater than 50' in
Locate paint washouts at least 50 feet away from storm drain inlets and surface
PAINT AND OTHER LIQUID WASTE
construction sites.
Prevent the discharge of soaps, solvents, detergents and other liquid wastes from 5.
Containment must be labeled, sized and placed appropriately for the needs of site.4.
3.Contain liquid wastes in a controlled area.
waters unless no other alternatives are reasonably available.
2.
Do not dump paint and other liquid waste into storm drains, streams or wetlands.1.
or surrounded by secondary containment structures.
Store flocculants in leak-proof containers that are kept under storm-resistant cover 5.
offsite.
Provide ponding area for containment of treated Stormwater before discharging 4.
PAMS/Flocculants and in accordance with the manufacturer's instructions.
Apply flocculants at the concentrations specified in the NC DWR List of Approved 3.
Apply flocculants at or before the inlets to Erosion and Sediment Control Measures.2.
construction, selecting from the NC DWR List of Approved PAMS/Flocculants.
Select flocculants that are appropriate for the soils being exposed during 1.
POLYACRYLAMIDES (PAMS) AND FLOCCULANTS
ENGINEERENGINEER
ROADWAY DESIGN
PROFESSION
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024436
EC-12
R/W SHEET NO.
SHEET NO.PROJECT REFERENCE NO.
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED5/14/99EB-5721
421 FAYETTEVILLE STREET, SUITE 600
CONST. REV.
RIGHT-OF-WAY REV.
C 2018
RALEIGH, NC 27601
NCG01 SELF-INSPECTION, RECORDKEEPING AND REPORTING EFFECTIVE: 04/01/19
were delayed shall be noted in the Inspection Record.
performed upon the commencement of the next business day. Any time when inspections
greater than 1.0 inch occurs outside of normal business hours, the self-inspection shall be
which it is safe to perform the inspection. In addition, when a storm event of equal to or
personnel to be in jeopardy, the inspection may be delayed until the next business day on
below. When adverse weather or site conditions would cause the safety of the inspection
Self-inspections are required during normal business hours in accordance with the table
SECTION A: SELF-INSPECTION
SELF-INSPECTION, RECORDKEEPING AND REPORTING
PART III
NOTE: The rain inspection resets the required 7 calendar day inspection requirement.
following items pertaining to the E&SC plan shall be documented in the manner described:
approved E&SC plan must be kept up-to-date throughout the coverage under this permit. The
The approved E&SC plan as well as any approved deviation shall be kept on the site. The
E&SC Plan Documentation1.
SECTION B: RECORDKEEPING
SELF-INSPECTION, RECORDKEEPING AND REPORTING
PART III
[40 CFR 122.41]. upon request
maintained for a period of three years after project completion and made available
All data used to complete the Notice of Intent and older inspection records shall be (c)
shown to provide equal access and utility as the hard-copy records.
electronically-available records in lieu of the required paper copies will be allowed if
a similar inspection form that includes all the required elements. Use of
the required observations on the Inspection Record Form provided by the Division or
Records of inspections made during the previous 30 days. The permittee shall record (b)
This general permit as well as the certificate of coverage, after it is received. (a)
requirement not practical:
Division provides a site-specific exemption based on unique site conditions that make this
and available for agency inspectors at all times during normal business hours, unless the
site
In addition to the E&SC Plan documents above, the following items shall be kept on the
2. Additional Documentation
858-0368 or (919) 733-3300.
reported to the Division's Emergency Response personnel at (800) 662-7956, (800)
other requirements listed below. Occurrences outside normal business hours may also be
the appropriate Division regional office within the timeframes and in accordance with the
After a permittee becomes aware of an occurrence that must be reported, he shall contact
Reporting Timeframes and Other Requirements2.
environment.
Noncompliance with the conditions of this permit that may endanger health or the (c)
Anticipated bypasses and unanticipated bypasses.(b)
(Ref: 40 CFR 302.4) or G.S. 143-215.85.
of the Clean Water Act (Ref: 40 CFR 110.3 and 40 CFR 117.3) or Section 102 of CERCLA
Releases of hazardous substances in excess of reportable quantities under Section 311 (a)
They are within 100 feet of surface waters (regardless of volume).·
They cause sheen on surface waters (regardless of volume), or·
They are less than 25 gallons but cannot be cleaned up within 24 hours,·
They are 25 gallons or more, ·
Oil spills if:(b)
Visible sediment deposition in a stream or wetland.(a)
Permittees shall report the following occurrences:
Occurrences that must be reported1.
SECTION C: REPORTING
SELF-INSPECTION, RECORDKEEPING AND REPORTING
PART III
ENGINEERENGINEER
ROADWAY DESIGN
PROFESSION
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024436