20191527 Ver 1_2019-11-04_U-5530LA_EC Plans_Revised_20191105

11/4/2019K:\RAL_Roadway\011725022 - U-5530LA\Plan\Plan Sheets\U5530LA_ero_psh01A.dgnPROJECT:
SHEET NUMBER:JOB NUMBER:
REV. No.:REVISION:DATE:DRAWN BY:CHECKED BY:
Copyright Kimley-Horn and Associates, Inc., 2019
shall be without liability to Kimley-Horn and Associates, Inc.
reliance on this document without written authorization and adoption by Kimley-Horn and Associates, Inc.
intended only for the specific purpose and client for which it was prepared. Reuse of and improper
This document, together with the concepts and designs presented herein, as an instrument of service, is
U-5530LAPROFESSIONALENGINEER
N ORTH CARO
LINA

.
J
YERFFE
M O ORE
WPROFESSIONALENGINEER
N ORTH CARO
LINA

.
J
YERFFE
M O ORE
W
SEAL
024436
15 0 30
C 2019
PHONE: [phone]
RALEIGH, NORTH CAROLINA 27601
421 FAYETTEVILLE ST., SUITE 600
NC LICENSE #F-0102
PREPARED IN THE OFFICE OF:PROJECT:
SHEET NUMBER:JOB NUMBER:
INCOMPLETE PLANS
DO NOT USE FOR RW ACQUISITION NAD 83DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED
GRADE SEPARATED CROSSING
SAM'S BRANCH GREENWAY
U-5530LA
U-5530LA
0
EC-1
DIRECTION OF FLOW
PROJECT DENUDED AREAS
PROPOSED PERVIOUS SURFACE = 0.55 AC
PROPOSED IMPERVIOUS SURFACE = 0.27 AC
Total Disturbed Area (shaded) = 0.82 acres
O'NEIL STEC-1A
DISTURBED AREAS
SAM'S BRANCH GREENWAY GRADE SEPARATION
IMPERVIOUS AND PERVIOUS SURFACES IN
TITLE SHEET
EROSION CONTROL
classifications A-7-5 and A-6).
The soil types throughout the project limits are mostly silt-clay materials (AASHTO
Soils
the project appear to be stable and do not show signs of significant erosion soils.
for all existing system outlets that are to be retained. The fill slopes and drainage ditches around
drainage patterns is not anticipated. Pre-construction runoff equals Post-construction runoff
the Neuse River. This project falls within the Neuse River Basin. An introduction of new
storm drain network along the trail. This drainage flows into Sam's Branch which flows to
majority of the drainage from the project site sheet flows off the greenway into the ditches and
slopes. Land use along the proposed trail grade separation is primarily rural residential. The
The site is generally rolling and contains some drainage ways that are bordered by moderate
Site Description
Sam's Branch Greenway is located in Johnston County, Clayton, NC.
vegetatively stabilized with grass and permanent plantings.
disturbed during the construction of this project. Also, approximately 0.55 acres will be
by another firm (Stewart) under TIP Project U-5530LB. Approximately 0.82 acres will be
Phase II. Phase I has been constructed and Phase II is being designed and permitted concurrently
grade separated underpass crossing of North O'Neil Street to connect Sam's Branch Phase I with
documentation of the Project under TIP Project U-5530LA. The Project includes the design of a
Department of Transportation (NCDOT) for the federal funding of the design and environmental
O'Neil Street. The Town has entered into a municipal agreement with the North Carolina
The Town of Clayton proposes a grade separated crossing of Sam's Branch Greenway at North
Project Description
SAM'S BRANCH
12" DIP
PP
2019-03-05
OF POLE PER
EST LOCATION12"PVC12"PVCCC CC
C
CC
C
C
F
C
C
F
C
C
C
F
F
C
C
C
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RSCPS
A
M'S
C
REE
K
IS P
R
OPE
RT
Y LI
NE CPCP
CPCPCPCPCPCP
I
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I
RSCPCPPROPOSED PUBLIC UTILITY AND GREENWAY EASEMENTC/L
S
AM'
S CREEKI
S
P
ROP
ERTY LI
NEN/F
DB 4448, PG. 320
TOWN OF CLAYTON
JOHNSTON LAND GROUP, LLCN/F
MARTHA ANN MCINTYRE
DB 1186, PG. 128
PIN # 1669.00-56-4010
N/F
CEBCO CONSTRUCTION, INC
DB 3270, PG. 986
PB 68, PG. 344-345
PIN # 1669.00-75-1610
JOHNSTON LAND GROUP, LLC
17017017
5
175175175175175175175
175175180
180180180180180180180180
180185185185185185185185
185185185185185190190190195200205
11/4/2019K:\RAL_Roadway\011725022 - U-5530LA\Plan\Plan Sheets\U5530LA_ero_psh01.dgnPROJECT:
SHEET NUMBER:JOB NUMBER:
REV. No.:REVISION:DATE:DRAWN BY:CHECKED BY:
Copyright Kimley-Horn and Associates, Inc., 2019
shall be without liability to Kimley-Horn and Associates, Inc.
reliance on this document without written authorization and adoption by Kimley-Horn and Associates, Inc.
intended only for the specific purpose and client for which it was prepared. Reuse of and improper
This document, together with the concepts and designs presented herein, as an instrument of service, is
U-5530LAPROFESSIONALENGINEER
N ORTH CARO
LINA

.
J
YERFFE
M O ORE
WPROFESSIONALENGINEER
N ORTH CARO
LINA

.
J
YERFFE
M O ORE
W
SEAL
024436
15 0 30
C 2019
PHONE: [phone]
RALEIGH, NORTH CAROLINA 27601
421 FAYETTEVILLE ST., SUITE 600
NC LICENSE #F-0102
PREPARED IN THE OFFICE OF:
GRADE SEPARATED CROSSING
SAM'S BRANCH GREENWAY
U-5530LA
PLANS
EROSION CONTROL
EC-1
PROJECT:
SHEET NUMBER:JOB NUMBER:
INCOMPLETE PLANS
DO NOT USE FOR RW ACQUISITION
U-5530LA
0 NAD 83DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED
C F
CONSTRUCTION LIMIT
(SHADED)
LIMITS OF DISTURBANCE
LEGEND
(SEE EC-3 FOR DETAIL)
TEMPORARY SILT FENCE
(SEE EC-3 FOR DETAIL)
SILT FENCE OUTLET
(SEE EC-5 FOR DETAIL)
CHECK, TYPE A
TEMPORARY ROCK SILT
(SEE EC-4 FOR DETAIL)
CONSTRUCTION ENTRANCE/EXIT
TEMPORARY GRAVEL
(SEE EC-5 FOR DETAIL)
CONCRETE WASHOUT STRUCTURE
SITE DESCRIPTION
PERIMETER DIKES, SWALES, DITCHES AND SLOPES
HIGH QUALITY WATER (HQW) ZONES
SLOPES STEEPER THAN 3:1
SLOPES 3:1 OR FLATTER
ALL OTHER AREAS WITH SLOPES FLATTER THAN 4:1
NPDES GENERAL STORMWATER PERMIT
7 DAYS
7 DAYS
STABILIZATION TIME
NONE, EXCEPT FOR PERIMETERS AND HQW ZONES.
LENGTH.
NOT STEEPER THAN 2:1, 14 DAYS ARE ALLOWED.
NONE
IF SLOPES ARE 10' OR LESS IN LENGTH AND ARE
7 DAYS FOR SLOPES GREATER THAN 50' IN
NONE
TIMEFRAME EXCEPTIONS
SOIL STABILIZATION TIMEFRAMES
14 DAYS
14 DAYS
7 DAYS
8.) SEE SHEET EC-2 FOR CONSTRUCTION SCHEDULE/SEQUENCE.
7.) NO BURNING WILL BE ALLOWED ON THE PROJECT.
6.) INSTALL ANY ADDITIONAL EROSION CONTROL MEASURES AS NECESSARY TO PREVENT SEDIMENT RUNOFF.
AND GREATER. SUBMIT SELF-INSPECTION REPORT WITHIN 15 DAYS OF THE INSPECTION.
5.) ALL EROSION CONTROL MEASURES MUST BE SELF-INSPECTED ONCE A WEEK OR WITHIN 24 HOURS OF ANY RAINFALL EVENT OF 0.5 INCH
4.) SILT FENCE OUTLET MUST BE ADDED IN THE FIELD WHENEVER LOW POINTS ARE ENCOUNTERED ALONG SILT FENCE RUNS.
INSTALLED SO THAT THE FENCES WILL PASS OVER THE PIPE OUTLETS.
3.) WHERE SILT FENCES ARE LOCATED BELOW STORM DRAIN OUTLETS, THEIR LOCATIONS MUST BE MODIFIED AS THE STORM DRAINS ARE
DAM DETAIL MUST BE SUBMITTED FOR APPROVAL PRIOR TO CONSTRUCTION.
SUFFICIENT QUANTITY OF BAGS TO CONTAIN SILT FROM PUMPED EFFLUENT DURING COSNTRUCTION. IF COFFER DAMS ARE UTILIZED, A COFFER
ARE UTILIZED, CONTRACTOR TO INSPECT BAG FOR DAMAGE AND BLOACKAGE, REPLACE BAG WHEN ƒ FULL OF SEDIMENT, AND PROVIDE A
PLAN TO ISOLATE AND DEWATER EXCAVATED AREAS AS NEEDED USING SILT BAGS AND/OR COFFER DAM AND PUMP AROUND. IF SILT BAGS
2.) PIPES SHALL BE INSTALLED/REPLACED IN THE DRY (WITH A MIN. 3 DAYS OF DRY WEATHER DURING INSTALLATION) OR CONTRACTOR SHALL
PARKING LOTS AT CONSTRUCTION ENTRANCES MUST BE REPAIRED AT THE CONTRACTORS EXPENSE.
EQUIPMENT DURING THE PROJECT DURATION UNLESS DIRECTED BY CITY ENGINEER. ANY DAMAGE TO EXISTING CURB AND GUTTER, ROADS, OR
1.) CONTRACTOR TO ENSURE THAT ALL ROADWAYS, PARKING LOTS, AND CURB LINES ADJACENT TO THIS PROJECT ARE FREE OF DEBRIS, DIRT, AND
GENERAL NOTES:
AS REQUIRED BY NPDES GENERAL STORMWATER PERMIT. REFER TO CROSS SECTIONS.
AND DIVERSIONS WITHIN 7 DAYS. ALL OTHER SLOPES SHALL BE STABILIZED WITHIN 14 DAYS
STABILIZATION ON SLOPES STEEPER THAN 3:1 AND ON THE SLOPES OF DITCHES, SWALES,
NOTE: SLOPES ON THIS PROJECT RANGE FROM 4:1 TO 2:1. CONTRACTOR SHALL PROVIDE SOIL
(SEE EC-4 FOR DETAIL)
WATTLE
(SEE EC-7 FOR DETAIL)
SPECIAL STILLING BASIN
(SEE EC-6 FOR DETAIL)
INLET PROTECTION DEVICE
(SEE EC-7 FOR DETAIL)
SEDIMENT TRAP, TYPE A
TEMPORARY ROCK PIPE INLET
MAINTAIN A VIGOROUS, DENSE, VEGETATIVE COVER.
EROSION CONTROL MATTING, SEEDING, AND MULCH TO
CONTRACTOR IS TO STABILIZE ALL AREAS AND SLOPES USING
4. AFTER PEDESTIRAN CULVERT OPERATION IS COMPLETE,
EROSION CONTROL PLANS.
NEEDED USING SPECIAL STILLING BASIN SHOWN IN THE
3. CONTRACTOR TO DEWATER PEDESTRIAN CULVERT AREA AS
PLANS.
STREET) DETAILED IN THE TRANSPORTATION MANAGEMENT
DURING THE ROAD CLOSURE OF SR 1708 (NORTH O'NEIL
2. CONTRACTOR TO ACCESS PEDESTRIAN CULVERT AREA
BEFORE ANY CLEARING AND GRUBBING IS PERFORMED.
1. CONTRACTOR TO INSTALL ALL EROSION CONTROL MEASURES
PEDESTRIAN CULVERT UNDER ROAD EROSION CONTROL PHASING:
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
DITCH
TIE TO EXISTING
EST DDE = 2 CY
SLOPE = 1.7%
LENGTH = 72'
EXISTING DITCH
CLEAN OUT
GRADE TO DRAIN
EST 10 SY GFD
EST 3 TONS
CLASS 'B' RIPRAP
EST 7 SY GFD
EST 2 TONS
CLASS 'B' RIPRAP
0403
0404
13+72.75 (LT)
-Y- Sta. 12+55.90 TO
BERM GUTTER FROM
INSTALL SHOULDER
0406
0407
0400
0402
0401
0408
EST 10 SY GFD
EST 3 TONS
CLASS 'B' RIPRAP
18"
OTCB
OEP
OEP
OEP 0405
OEP
OEP
OEP
RCP-III
18"
TB2GI
TB2GI
RCP-III
15"
RCP-III
15"
GRADE TO DRAIN
RCP-IV
18"
SEE DETAIL 1
SPECIAL CUT DITCH
SEE DETAIL 1
SPECIAL CUT DITCH
18"
SEE DETAIL 2
EST 60 SY GFD
EST 30 TONS
W/ CLASS B RIP RAP
SPECIAL LATERAL 'V' DITCH
Do+La=6.25'
La=5'
3Do=3.75'
DIMENSIONS:
OUTLET PAD
Do+La=7.5'
La=6'
3Do=4.5'
DIMENSIONS:
OUTLET PAD
Do+La=7.5'
La=6'
3Do=4.5'
DIMENSIONS:
OUTLET PAD
CULVERT INSTALLATION
DE-WATERING DURING
BE USED AS NECESSARY FOR
SPECIAL STILLING BASIN TO
D15 8 0
75
ENTRANCE
TEMP CONSTRUCTION
TEMP PIPE UNDER
INSTALL 16' OF 15" DDENTRANCE
UNDER TEMP CONSTRUCTION
INSTALL 16' OF 18" TEMP PIPE DFENCE AROUND TOP OF PIPE.
ARE INSTALLED AND WRAP TEMPORARY SILT
REMOVE AFTER PIPE AND OUTLET PROTECTION
TYPE A WITH 3.5' WEIR HEIGHT.
INSTALL TEMPORARY ROCK SILT CHECK DTO 78+25 (LT)
LAYER FIBERGLASS ROVING -L- STA 76+15
INSTALL TEMPORARY DITCH LINER DOUBLE
TO 13+00 (RT)
LAYER FIBERGLASS ROVING -Y- STA 12+45
INSTALL TEMPORARY DITCH LINER DOUBLE
TO 78+25 (RT)
LAYER FIBERGLASS ROVING -L- STA 77+50
INSTALL TEMPORARY DITCH LINER DOUBLE D
DWASHOUT STRUCTURE
PROPOSED CONCRETE DOF BUFFER ZONES
STAGING AREA OUTSIDE
PROPOSED STOCKPILE
Do+La=6.25'
La=5'
3Do=3.75'
DIMENSIONS:
OUTLET PAD
Do+La=7.5'
La=6'
3Do=4.5'
DIMENSIONS:
OUTLET PAD
Do+La=7.5'
La=6'
3Do=4.5'
DIMENSIONS:
OUTLET PAD DDDETAIL ON SHEET EC-7 AS NEEDED.
SEE SPECIAL STILLING BASIN/SILT BAG
OPERATION GUIDELINES WHEN APPLICABLE.
CONTRACTOR TO ABIDE BY DEWATERING
REGARDING PIPE INSTALLATION.
SEE GENERAL NOTE 2 ON THIS SHEET
11/4/2019K:\RAL_Roadway\011725022 - U-5530LA\Plan\Plan Sheets\U5530LA_ero_dtl.dgnPROJECT:
SHEET NUMBER:JOB NUMBER:
REV. No.:REVISION:DATE:DRAWN BY:CHECKED BY:
Copyright Kimley-Horn and Associates, Inc., 2019
shall be without liability to Kimley-Horn and Associates, Inc.
reliance on this document without written authorization and adoption by Kimley-Horn and Associates, Inc.
intended only for the specific purpose and client for which it was prepared. Reuse of and improper
This document, together with the concepts and designs presented herein, as an instrument of service, is
U-5530LAPROFESSIONALENGINEER
N ORTH CARO
LINA

.
J
YERFFE
M O ORE
WPROFESSIONALENGINEER
N ORTH CARO
LINA

.
J
YERFFE
M O ORE
W
SEAL
024436
C 2019
PHONE: [phone]
RALEIGH, NORTH CAROLINA 27601
421 FAYETTEVILLE ST., SUITE 600
NC LICENSE #F-0102
PREPARED IN THE OFFICE OF:
GRADE SEPARATED CROSSING
SAM'S BRANCH GREENWAY
U-5530LA
EC-2
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED
DETAILS
EROSION CONTROL
CONSTRUCTION SCHEDULE/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
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
RIP RAP (6.15)
LAND GRADING (6.02)
SEEDING SPECIFICATIONS
Shoulders, Side Ditches, Slopes (3:1)
Date Type Planting Rate
Jun. 15-Aug. 15
(Nov. 1-Mar. 1)
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
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
250 lbs./acre
250 lbs./acre
25 lbs./acre
25 lbs./acre
12 lbs./acre
60 lbs./acre
35 lbs./acre
30 lbs./acre
50 lbs./acre
60 lbs./acre
5 lbs./acre
8 lbs./acre
60 lbs./acre
35 lbs./acre
30 lbs./acre
70 lbs./acre
50 lbs./acre
Apr. 15-Jun. 15
1)
2)
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.
Shoulders, Side Ditches, Slopes (3:1)
Date Type Planting Rate
Jun. 15-Aug. 15
(Nov. 1-Mar. 1)
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
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
60 lbs./acre
35 lbs./acre
30 lbs./acre
50 lbs./acre
60 lbs./acre
5 lbs./acre
8 lbs./acre
60 lbs./acre
35 lbs./acre
30 lbs./acre
70 lbs./acre
50 lbs./acre
Apr. 15-Jun. 15
surface is uniform and free of large dirt clods.
Disk nutrients into soil to a depth of six inches until3)
4)
5)
6)
7)
250 lbs./acre
6)
erosion or other damage.
Reseed, refertilize and mulch immediately following
Maintenance: Refertilize if growth is not fully adequate.
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
Panicum rigidulum
Carex lupulina Hop Sedge
Juncus effusus Soft Rush
Carex lurida
Scirpus cyperinus Wool Grass
Saururus cernuus Lizard's Tail
Carex squarrosa Squarrose Sedge
SPECIES NAME
2. APPLICATION RATE OF 20 LBS/AC
1. SIMILAR SEED MIX CAN BE USED WITH ENGINEER'S APPROVAL.
NOTE: For Riparian Buffer areas, see tables above.
VEGETATIVE PLAN (6.10 AND 6.11)
local conditions: other seeding rate combinations are possible.
denuded areas. The above vegetation rates are those which do well under
additional information concerning other alternatives for vegetation of
Consult Conservation Engineer or Soil Conservation Service for
may be shaded out.
cover to grow over 12 inches in height before mowing, otherwise, fescue
desired permanent vegetation per Section 6.10 . Do not allow temporary
*** Temporary - Reseed according to optimum season for
SEEDING SPECIFICATIONS
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)
/acre in clay soils or per soils test
A minimum of 2 tons limestone/acre with 3 tons limestone
per acre of straw.
with asphalt emulsion at a rate of 400 gallons emulsion
crimping and mulching application technique. Tack mulch
sunlight to seedlings. Mulch shall be applied by the
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

all critical areas.
to be graded and filled, and preserve it for use in finishing the grading of
2. Remove good topsoil, as determined by a Geotechnical Engineer from areas

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
1: A SIMILAR MIXTURE CAN BE USED WITH APPROVAL BY ENGINEER.
RIPARIAN BUFFER SEEDING PLAN
Redtop Panic Grass
Lurid (shallow) Sedge
COMMON NAME
1WETLAND SEED MIX
1
PER CENT COMPOSITION
10
15
15
5
5
5
5
10
10
5
5
10
60
10
10
7
5
4
4
MIX PERCENTAGE 2
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
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 rip rap 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
Section at [phone].
questions or cannot access the form, please contact NCDEQ Land Quality
If you have http://portal.ncdenr.org/web/lr/erosion.PDF from at
The Self-Inspection Report form is available as a Word Document and
sequence schedule in advance to maintain management control.
When changes in construction activities are needed, amend the
Follow the construction sequence throughout project development.
MAINTENANCE
Self-Inspection Program:
Notification of Land Resources Sediment and Erosion Control
the NPDES Stormwater Permit for Construction Activities.
program is separate from the weekly self-monitoring program of
inspections took effect October 1, 2010. The self-inspection
being followed. Rules detailing the documentation of these
sure that the approved erosion and sedimentation control plan is
inspect a project after each phase of the project to make
to require that persons responsible for land-disturbing activities
The Sedimentation Pollution Control Act was amended in 2006
accordance with NCGS 113A-54.1 and 15A NCAC 4B.0131.
the project, and continue until permanent ground cover is established in
approved plan. The inspections must be conducted after each phase of
of erosion and sedimentation control measures according to the
The focus of the self-inspection report is the installation/maintenance
All construction activities are required to follow the new NCGO1 permit regardless of when they are approved.
approved on or after April 1, 2019 are required to fill out and submit an electronic Notice of Intent (e-NOI) form.
version are located at deq.nc.gov/ NCG01. Please note that any construction activities that have an ES&C Plan
4. The Inspection, Recordkeeping, and Reporting Plan sheet must be added to the plans. A pdf and an AutoCAD
3. The NCG01 Ground Stabilization and Materials Handling Plan Sheet has been added to the plans
e-NOT has been filled out.
submit an electronic Notice of Termination (e-NOT). A $100 annual general permit fee will be charged until the
informs the permittee of the project close out, via inspection report, the permittee shall visit deq.nc.gov/ NCG01 to
2. When the project is complete, the permittees shall contact DEMLR to close out the E&SC Plan. After DEMLR
accessible during inspection.
of the E&SC permit, the COC, and a hard copy of the plan must be kept on site, preferably in a permits box, and
deq.nc.gov/ NCG01. Please note, the e-NOI form may be only be filled out once the plans have been approved. A copy
disturbing activities occur. The COC can be obtained by filling out the electronic Notice of Intent (e-NOI) form at
1. Erosion and Sediment Control (E&SC) permit and a certificate of coverage must be obtained before any land
The NCG01 permit became effective on April 1, 2019 and added the following notes to the construction sequence:
5. The Town of Clayton contact is Joshua Baird [phone]
construction.
areas within 15 working days or no more than 90 calendar days (whichever is shorter) following completion of
cover, devises or structures sufficient to restrain erosion. Permanent groundcover will be provided for all disturbed
calendar days of completion of any phase of grading, be planted or otherwise provided with temporary ground
or other adequate erosion-control devices or structures. In any event, slopes left exposed will, within 7 or 14
4. The angle for graded slopes and fills shall be no greater than the angle that can be retained by vegetative cover
vegetative plan to maintain a vigorous, dense vegetative cover.
3. The Contractor shall fertilize, reseed as necessary, and mulch all seeded areas according to specifications in the
fence will be repaired as necessary to maintain a barrier.
2. The Contractor shall remove sediment from behind silt fence when it becomes 0.5 feet deep at the fence. Silt
inspections by the contractor must be made and logged after every one inch of rainfall and once a week.
(NPDES) general stormwater permit, a rain gauge must be installed on site. The rain gauge must be kept onsite and
the Contractor to maintain all practices as designed. Also per National Pollutant Discharge Elimination System
runoff producing rainfall but in no case less than once every week. Any needed repairs will be made immediately by
1. The Contractor shall check all erosion and sediment control practices for stability and operation following every
entirety of the project.
be kept on site near the main construction entrance for the
approval certificate/letter, approved plan, and NPDES permit will
16. The previous 30 days of self-inspection records, rain gauge,
maintenance and vegetative plan.
restored as existing, and permanently vegetated as described in the
stockpile areas and all other erosion control devices shall be removed,
15. After site is stabilized, construction staging and material area
14. Site includes approximately 0.55 acres of permanent vegetation area.
pipe installation and ditch outfalls at the end of each day.
per conditions of the NPDES permit or in critical areas such as at
permanent vegetation is well established. All ground cover to be applied
a vigorous stand of permanent ground cover is established and
13. All applicable erosion and sediment control must be maintained until
immediately to restore sediment containment.
weekly and after rainfall events. Needed repairs will be made
12. All erosion and sediment control practices will be inspected
project.
temporary erosion control measures shall be removed from the
and arrange for a final site inspection. Upon approval, all
11. After seeding is established, the contractor shall call NCDEQ
conditions outlined in the current NPDES permit or sooner.
devices maintained. All bare soils are to be stabilized under
temporary vegetative ground cover established and erosion control
than the aforementioned length of time, all disturbed areas shall have
of any phase of grading. If work on the project ceases for more
vegetative cover within 21 calendar days or sooner of completion
according to NCDOT specifications to maintain a vigorous, dense,
10. All graded areas will be seeded, fertilized and mulched
mixes.
vegetate, seed and mulch. See this sheet for seeding plan and seed
9. Finish grading of slopes, topsoil critical areas and permanently
8. Place concrete/asphalt and build shoulders.
with gravel.
7. Complete final grading for greenway improvemnts and stabilize
erosion control matting/liner as noted in the plans.
greenway and install cross pipes. After grading is complete, install
measures. After erosion control measures are in place, grade
6. In accordance with the erosion control plans: install erosion control
structures, special stilling basin, silt fence, and silt fence outlets.
temporary gravel construction entrance/exits, concrete washout
5. Prior to any land disturbing (including demolition) activities, install
number is [phone].
to starting construction and invite NCDEQ. NCDEQ LQS contact
4. Hold preconstruction conference at least one week prior
3. Flag the work limits for protection.
Excavation" in the 2018 NCDOT Standard Specifications.
grading permits for borrow site. Refer to Section 230 "Borrow
2. Obtain plan approval and other applicable permits including
construction scheduling and sequencing.
1. Please refer to the Erosion and Sediment Control plans for detailed
CONSTRUCTION SPECIFICATIONS
11/4/2019K:\RAL_Roadway\011725022 - U-5530LA\Plan\Plan Sheets\U5530LA_ero_dtl.dgnPROJECT:
SHEET NUMBER:JOB NUMBER:
REV. No.:REVISION:DATE:DRAWN BY:CHECKED BY:
Copyright Kimley-Horn and Associates, Inc., 2019
shall be without liability to Kimley-Horn and Associates, Inc.
reliance on this document without written authorization and adoption by Kimley-Horn and Associates, Inc.
intended only for the specific purpose and client for which it was prepared. Reuse of and improper
This document, together with the concepts and designs presented herein, as an instrument of service, is
U-5530LAPROFESSIONALENGINEER
N ORTH CARO
LINA

.
J
YERFFE
M O ORE
WPROFESSIONALENGINEER
N ORTH CARO
LINA

.
J
YERFFE
M O ORE
W
SEAL
024436
C 2019
PHONE: [phone]
RALEIGH, NORTH CAROLINA 27601
421 FAYETTEVILLE ST., SUITE 600
NC LICENSE #F-0102
PREPARED IN THE OFFICE OF:
SIDE VIEW
FRONT VIEW
DIRECTED BY ENGINEER
ANCHOR SKIRT AS
OVER SKIRT
8" MINIMUM COVER
GRADE
FILL SLOPE
WOVEN WIRE FABRIC
VARIABLE AS DIRECTED BY THE ENGINEER
INTERMEDIATE WIRES
GAUGE 2
1MINIMUM 12
GRADE
8'-0" MAXIMUM
3'-0"2'-0"*
*
*AREAS OF CONCENTRATED FLOW.
DOES NOT EXCEED 1/4 ACRE AND NEVER IN
USE SILT FENCE ONLY WHEN DRAINAGE AREA
:NOTE
USE SILT FENCE OUTLET DETAIL
FOR REPAIR OF SILT FENCE FAILURES
*
**
STANDARD SILT FENCE OUTLET
SIDE VIEW
FRONT VIEW
HARDWARE CLOTH
WIRE FENCE
STEEL FENCE POST
GRADE
GRADE
18"
FABRIC
SILT FENCE
WIRE FENCEMAXIMUM 2 FEET APART
STEEL FENCE POST SET
# 57 WASHED STONE
FILTER OF 1 INCH DIAMETER
PLAN VIEW
# 57 WASHED STONE
FILTER OF 1 INCH DIAMETER
STEEL FENCE POST
ON WIRE FENCE
SILT FENCE FABRIC
ON WIRE FENCE
HARDWARE CLOTH
HARDWARE CLOTH
HARDWARE CLOTH BY 12 INCHES
SILT FENCE FABRIC TO OVERLAP
:NOTE
FLOW DIRECTION FLOWFLOWFLOWINCHES
12
OVERLAP
INCHES
12
OVERLAP
8"
AS A REPAIR OF SILT FENCE FAILURES.
ACRE AND THERE IS A LOW AREA. USE
DRAINAGE AREA DOES NOT EXCEED 1/4
USE SILT FENCE OUTLETS ONLY WHEN
:NOTE
of the structure).
ground surface. (Higher fences may impound volumes of water sufficient to cause failure
2. Ensure that the height of the sediment fence does not exceed 18 inches above the
1. Construct the sediment barrier of standard strength or extra strength synthetic filter fabrics.
CONSTRUCTION
14 gauge and a maximum mesh spacing of 6 inches.
3. For reinforcement of standard strength filter fabric, use wire fence with a minimum
length of 4 ft. Make sure that steel posts have projections to facilitate fastening the fabric.
2. Ensure that posts for sediment fences are 1.33 lb/linear ft steel with a minimum
to 120 degrees F.
minimum of 6 months of expected usable construction life at a temperature range of 0
Synthetic filter fabric should contain ultraviolet ray inhibitors and stabilizers to provide a
to the requirements shown in the table below.
or polyethylene yarn, which is certified by the manufacturer or supplier as conforming
1. Use a synthetic filter fabric or a pervious sheet of polypropylene, nylon, polyester,
MATERIALS
CONSTRUCTION SPECIFICATIONS
10. Do not attach filter fabric to existing trees.
9. Backfill the trench with compacted soil or gravel placed over the filter fabric.
8. Adjust spacing to place posts at low points along the fence line.
line of posts and upslope from the barrier.
7. Excavate a trench approximately 4 inches wide and 8 inches deep along the proposed

support fence. Staple or wire the filter fabric directly to posts.
6. Extra strength filter fabric with 6-ft post spacing does not require wire mesh

downslope side of the trench.
Support posts should be driven securely into the ground to a minimum of 18 inches on the
5. When a wire mesh support fence is used, space posts a maximum of 8 ft apart.

Extend the wire mesh support to the bottom of the trench.
side of the posts using heavy duty wire staples at least 1 inch long, or the wires.
4. Support standard strength filter fabric by wire mesh fastened securely to the upslope
support post with overlap to the next post.
to avoid joints. When joints are necessary, securely fasten the filter cloth only at a
3. Construct the filter fabric from a continuous roll cut to the length of the barrier
*
*
VERTICALLY AND 4" HORIZONTALLY.
BE TRENCHED IN, AT A MINIMUM, 8"
MANUAL FIGURE 6.62A (6.62.5). SKIRT MUST
SEDIMENT CONTROL PLANNING AND DESIGN
REQUIREMENTS, PER NCDENR EROSION AND
ANCHOR SKIRT FOLLOWING SKIRT TRENCH
THE TRENCH
AND SILT FENCE FABRIC 8 INCHES INTO
BURY WIRE FENCE, HARDWARE CLOTH,
:NOTE
VERTICALLY AND 4" HORIZONTALLY.
BE TRENCHED IN, AT A MINIMUM, 8"
MANUAL FIGURE 6.62A (6.62.5). SKIRT MUST
SEDIMENT CONTROL PLANNING AND DESIGN
REQUIREMENTS, PER NCDENR EROSION AND
ANCHOR SKIRT FOLLOWING SKIRT TRENCH
LINE WIRES
MINIMUM 10 GAUGE
LINE WIRES
MINIMUM 10 GAUGE
1.33 LB/LF STEEL POST
FENCE GEOTEXTILE FABRIC
ORANGE UV RESISTENT SILT
4"
4"
4"18"
40"
3"
3"DO NOT ENTER
PROTECTION AREA
the proposed line ofposts and upslope from the barrier (Figure 6.62a).
7. Excavate a trench approximately 4 inches wide and 8 inches deep along
plastic zip ties should have minimum 50 pound tensile strength.
mesh support fence. Securely fasten the filter fabric directly to posts. Wire or
6. Extra strength filter fabric with 6 feet post spacing does not require wire
24 inches.
apart. Support posts should be driven securely into the ground a minimum of
5. When a wire mesh support fence is used, space posts a maximum of 8 feet
strength.
the fence post. Wire or plastic zip ties should have minimum 50 pound tensile
the trench. Fasten the wire reinforcement, then fabric on the upslope side of
upslope side of the posts. Extend the wire mesh support to the bottom of
4. Support standard strength filter fabric by wire mesh fastened securely to
cloth only at a support post with 4 feet minimum overlap to the next post.
barrier to avoid joints. When joints are necessary, securely fasten the filter
3. Construct the filter fabric from a continuous roll cut to the length of the
sufficient to cause failure ofthe structure.)
above the ground surface. (Higher fences may impound volumes of water
2. Ensure that the height of the sediment fence does not exceed 24 inches
synthetic filter fabrics.
1. Construct the sediment barrier of standard strength or extra strength
CONSTRUCTION
minimum l4 gauge and a maximum mesh spacing of 6 inches.
3. For reinforcement of standard strength filter fabric, use wire fence with a
projections to facilitate fastening the fabric.
steel with a minimum length of 5 feet. Make sure that steel posts have
2. Ensure that posts for sediment fences are 1.25 lb/linear ft minimum
temperature range of 0 to 120° F.
to provide a minimum of 6 months of expected usable construction life at a
Synthetic filter fabric should contain ultraviolet ray inhibitors and stabilizers
the requirements in ASTM D 6461, which is shown in part in Table 6.62b.
polyester, which is certified by the manufacturer or supplier as conforming to
1. Use a synthetic filter fabric of at least 95% by weight of polyolefins or
CONSTRUCTION SPECIFICATIONS
TEMPORARY SILT FENCE
GRADE SEPARATED CROSSING
SAM'S BRANCH GREENWAY
U-5530LA
EC-3
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED
DETAILS
EROSION CONTROL
drainage area has been properly stabilized.
bring the area to grade and stabilize it after the contributing
Remove all fencing materials and unstable sediment deposits and
Take care to avoid undermining the fence during cleanout.
storage volume for the next rain and to reduce pressure on the fence.
Remove sediment deposits as necessary to provide adequate
60 days.
or become ineffective, replace it promptly. Replace burlap every
Should the fabric of a sediment fence collapse, tear, decompose
after each rainfall. Make any required repairs immediately.
Inspect sediment fences and fence outlets at least once a week and
MAINTENANCE
10. Do not attach filter fabric to existing trees.
Thorough compaction of the backfill is critical to silt fence performance.
9. Backfill the trench with soil placed over the filter fabric and compact.
8. Place 12 inches of the fabric along the bottom and side of the trench.
and stabilize it after the contributing drainage area has been properly stabilized.
Remove all fencing materials and unstable sediment deposits and bring the area to grade
during cleanout.
rain and to reduce pressure on the fence. Take care to avoid undermining the fence
Remove sediment deposits as necessary to provide adequate storage volume for the next
replace it promptly. Replace burlap every 60 days.
Should the fabric of a sediment fence collapse, tear, decompose or become ineffective,
Make any required repairs immediately.
Inspect sediment fences and fence outlets at least once a week and after each rainfall.
MAINTENANCE
securely support posts and overlap to the next post.
particularly at low points in the fence line. When joints are necessary, fasten fabric
12. Attach continuous length of fabric to upslope side of fence posts. Avoiid joints,
11. Fasten support wire fence to upslope side of posts, extending 6 inches into the trench.
11/4/2019K:\RAL_Roadway\011725022 - U-5530LA\Plan\Plan Sheets\U5530LA_ero_dtl.dgnPROJECT:
SHEET NUMBER:JOB NUMBER:
REV. No.:REVISION:DATE:DRAWN BY:CHECKED BY:
Copyright Kimley-Horn and Associates, Inc., 2019
shall be without liability to Kimley-Horn and Associates, Inc.
reliance on this document without written authorization and adoption by Kimley-Horn and Associates, Inc.
intended only for the specific purpose and client for which it was prepared. Reuse of and improper
This document, together with the concepts and designs presented herein, as an instrument of service, is
U-5530LAPROFESSIONALENGINEER
N ORTH CARO
LINA

.
J
YERFFE
M O ORE
WPROFESSIONALENGINEER
N ORTH CARO
LINA

.
J
YERFFE
M O ORE
W
SEAL
024436
C 2019
PHONE: [phone]
RALEIGH, NORTH CAROLINA 27601
421 FAYETTEVILLE ST., SUITE 600
NC LICENSE #F-0102
PREPARED IN THE OFFICE OF:
FLOW
TOP VIEW
6'(MIN.)
STAKE
UPSLOPE
STAKE
DOWNSLOPE
MATTINGSee Inset B
INSET B
STAPLES
VAR.
2'(MIN.)
INSET A
STAKES
NATURAL GROUND
NATURAL GROUND
2'(MAX.)
CROSS SECTION
CROSS SECTION
VEE DITCH
EDGE OF PAVEMENT
ISOMETRIC VIEW
PAVEMENT
SHLD.
SLOPE
BACK
SLOPEDITCH
STAKE
2' UPSLOPE
MATTING
STAKE
2' DOWNSLOPE
STAKE
2' UPSLOPE
MATTING
STAKE
2' DOWNSLOPE
EXCELSIOR WATTLE
MATTING
2 IN.
See Inset A
WATTLE DETAIL
TRAPEZOIDAL DITCH
18"(MIN.)
STANDARD SPECIFICATIONS.
INSTALL MATTING IN ACCORDANCE WITH SECTION 1631 OF THE
BOTH SIDES OF WATTLE AND AT EACH END TO SECURE IT TO THE SOIL.
INSTALL STAPLES APPROXIMATELY EVERY 1 LINEAR FOOT ON
FORMED INTO A U SHAPE NOT LESS THAN 18" IN LENGTH.
PROVIDE STAPLES MADE OF 0.125 IN. DIAMETER STEEL WIRE
STAKES AT AN ANGLE TO WEDGE WATTLE TO BOTTOM OF DITCH.
INSTALL A MINIMUM OF 2 UPSLOPE STAKES AND 4 DOWNSLOPE
WASH AROUND WATTLE AND SCOUR DITCH SLOPES AND AS DIRECTED.
ONLY INSTALL WATTLE(S) TO A HEIGHT IN DITCH SO FLOW WILL NOT
CROSS SECTION.
USE 2 FT. WOODEN STAKES WITH A 2 IN. BY 2 IN. NOMINAL
USE MINIMUM 18 IN. DIAMETER EXCELSIOR WATTLE.
NOTES:
direction of flow and over the protective mulch.
In channels, roll out strips of netting parallel to the
overlap
18"
and overlapping.
Join strips by anchoring
direction of flow and over the protective mulch.
In channels, roll out strips of netting parallel to the
overlap
18"
and overlapping.
Join strips by anchoring
matting in firm contact with the soil and staple securely.
erodible soils, and during all times of the year. Place the
considered protective mulches and may be used alone, on
Mats, including "excelsior" (wood fiber) blankets, are

sprayed on top of an installed net.
always be installed over the mulch. Wood fiber may be
Except when wood fiber slurry is used, netting should

such as straw.
they are usually used in conjunction with an organic mulch
benefits and only limited erosion protection. Therefore,
Nets alone generally provide little moisture conservation

NETS AND MATS

along the length of the channel.
of 5 inches at the upgrade end and at intervals of 50 ft
As an option to staking, the roving can be buried to a depth
randomly throughout its width, but not more than 10 ft apart.
intervals no greater than 10 ft along the drainageway, and
undermining. It may be secured with stakes placed at
the roving mat must be further anchored to prevent
As a channel lining, and at other sites of concentrated flow,

application, at a rate of 450 gallons per acre.
0.35 lb/sq yd. Anchor with asphalt immediately after
Spread roving uniformly over the area at a rate of 0.25 to

straw mulch, but must still be tacked with asphalt.
fibers as it contacts the soil surface. It is often used over a
compressed air ejector. Roving expands into a mat or glass
it can be continuously withdrawn from the center using a
Synthetic roving is wound into a cylindrical package so that

control matting or equivalent product approved by engineer.
Use North American Green PS 300 permanent erosion

SYNTHETIC ROVING

CONSTRUCTION SPECIFICATIONS
applied. Installation is illustrated below.
provide cover of at least 30% of the surface where it is
blanket-type product used as a protective mulch should
accordance with manufacturer's instructions. Any mat or
Products designed to control erosion should be installed in

INSTALLATION OF NETTING AND MATTING
slot.
shown below, and staple every 12 inches just below the anchor
new net. Overlap the end of the previous roll 18 inches, as
4. To join two strips, cut a trench to anchor the end of the
when applying staples.
be stapled down the center, every 3 ft. Do not stretch the net
inches and stapled together. Each strip of netting should also
laid side by side, the adjacent edges should be overlapped 3
3 ft around the edges and bottom. Where 2 strips of net are
Staple the net every 12 inches across the top end and every
no less than 6 inches deep, cover with soil, and tamp firmly.
3. To secure the net, bury the upslope end in a slot or trench
the soil but without wrinkles-do not stretch.
and unroll it down the grade. Allow netting to lay loosely on
2. Start laying the net from the top of the channel or slope
afterward.
before installing the net and fertilizer and seed sprayed on
mat. If open-weave netting is used, lime may be incorporated
1. Apply lime, fertilizer and seed before laying the net or
VARIOUS MULCH AND NET CONSTRUCTION SPECIFICATIONS
as necessary until ground cover is established.
reseed and reinstall mulch. Monitor and repair mats and liners
apply additional mulch. If washout occurs, repair the clope grade,
fixed and eroded area protected. Where erosion is observed,
occurs due to poorly controlled drainage, the problem shall be
contact with the ground shall be repaired and stapled. If erosion
ares of the nets and mats that are damaged or not in close
and erosion must not occur beneath the nets and mats. Any
immediately. Good contact with the ground must be maintained,
significant (1/2 inch or greater) rain fall event repair
Inspect all mulches, nets, and mats at least weekly and after each

MAINTENANCE
CROSS SECTION
PLAN VIEW
CROSS SECTION
PLAN VIEW
to divert runoff away from the public road.
approximately 15 feet from the entrance
3:1 side slopes, across the foundation
construct a ridge, 6 to 8 inches high with
If the slope toward the road exceeds 2%,

foundation for positive drainage.
foundation area. Grade and crown
and other objectionable material from the
and steep slopes. Remove all vegetation
Installation: Avoid curves in public roads
public roadways.
objectionable materials spilled, washed, or tracked onto
clean it out as necessary. Immediately remove all
rainfall, inspect any structure used to trap sediment and
require periodic topdressing with 2-inch stone. After each
sediment from leaving the construction site. This may
Maintain the stone pad in a condition to prevent mud or
MAINTENANCE
"Incidental Stone Base."
6. Payment shall be made at the contract unit price per ton
5. Use 2-3" coarse aggregate base course or larger.
water table.
of the foundation in locations subject to seepage or high
4. Use geotextile fabrics because they improve stability
other suitable outlet.
3. Provide drainage to carry water to a sediment trap or
shown on the plans, and smooth it.
2. Place the stone to the specific grade and dimensions
and other objectionable material and properly grade it.
1. Clear the entrance and exit area of all vegetation, roots,
CONSTRUCTION SPECIFICATIONS

2"-3" STONE TO BE USED
(SURGE STONE OR RAILROAD
BALLAST)
EXISTING
ROADWAY
EXISTING ROADWAY
FABRIC UNDER STONE
NEW CONSTRUCTION
12"MIN.
15' MIN.35' MIN.
6" MIN.
TO ENSURE CONSTRUCTION ENTRANCE IS USED.
PUT SILT FENCE OR TREE PROTECTION FENCE UP
NOTES:
ROCK BERM
100' MIN.
(SUFFICIENT TO KEEP
SEDIMENT ON SITE)
25' OR WIDTH
OF PROPOSED
STREET,
WHICHEVER IS
GREATER
TEMPORARY GRAVEL CONSTRUCTION ENTRANCE/EXIT (6.06.1)
GRADE SEPARATED CROSSING
SAM'S BRANCH GREENWAY
U-5530LA
EC-4
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED
DETAILS
EROSION CONTROL
WATTLE.
WATTLE, AND PREVENT LARGE FLOWS FROM CARRYING SEDIMENT OVER THE
DAMAGE TO CHANNEL VEGETATION, ALLOW THE CHANNEL TO DRAIN THROUGH THE
REMOVE SEDIMENT ACCUMULATED BEHIND THE WATTLES AS NEEDED TO PREVENT
PROTECTIVE RIPRAP LINER IN THAT PORTION OF THE CHANNEL.
IMMEDIATELY. IF SIGNIFICANT EROSION OCCURS BETWEEN WATTLES, INSTALL A
FROM HIGH FLOWS AROUND THE EDGES OF THE DAM. CORRECT ALL DAMAGE
ANTICIPATE SUBMERGENCE AND DEPOSITION ABOVE THE WATTLE AND EROSION
INSPECT WATTLES AND CHANNELS FOR DAMAGE AFTER EACH RUNOFF EVENT.
MAINTENANCE:
11/4/2019K:\RAL_Roadway\011725022 - U-5530LA\Plan\Plan Sheets\U5530LA_ero_dtl.dgnPROJECT:
SHEET NUMBER:JOB NUMBER:
REV. No.:REVISION:DATE:DRAWN BY:CHECKED BY:
Copyright Kimley-Horn and Associates, Inc., 2019
shall be without liability to Kimley-Horn and Associates, Inc.
reliance on this document without written authorization and adoption by Kimley-Horn and Associates, Inc.
intended only for the specific purpose and client for which it was prepared. Reuse of and improper
This document, together with the concepts and designs presented herein, as an instrument of service, is
U-5530LAPROFESSIONALENGINEER
N ORTH CARO
LINA

.
J
YERFFE
M O ORE
WPROFESSIONALENGINEER
N ORTH CARO
LINA

.
J
YERFFE
M O ORE
W
SEAL
024436
C 2019
PHONE: [phone]
RALEIGH, NORTH CAROLINA 27601
421 FAYETTEVILLE ST., SUITE 600
NC LICENSE #F-0102
PREPARED IN THE OFFICE OF:
GRADE SEPARATED CROSSING
SAM'S BRANCH GREENWAY
U-5530LA
EC-5
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED
DETAILS
EROSION CONTROL
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.
repair immediately.
1. Inspect Rolled Erosion Control Products (RECP) at least weekly and after each signifcant (1/2 inch or greater) rain fall event
MAINTENANCE:
large flows from carrying sediment over the dam. Add stones to dams as needed to maintain design height and cross section.
Remove sediment accumulated behind the darock silt checks as needed to prevent damage to channel vegetation, allow the channel to drain through the stone silt check, and prevent
occurs between silt checks, install a protective riprap liner in that portion of the channel.
Anticipate submergence and deposition above the rock silt check and erosion from high flows around the edges of the dam. Correct all damage immediately. If significant erosion
Inspect rock silt checks and channels for damage after each runoff event.
MAINTENANCE
11/4/2019K:\RAL_Roadway\011725022 - U-5530LA\Plan\Plan Sheets\U5530LA_ero_dtl.dgnPROJECT:
SHEET NUMBER:JOB NUMBER:
REV. No.:REVISION:DATE:DRAWN BY:CHECKED BY:
Copyright Kimley-Horn and Associates, Inc., 2019
shall be without liability to Kimley-Horn and Associates, Inc.
reliance on this document without written authorization and adoption by Kimley-Horn and Associates, Inc.
intended only for the specific purpose and client for which it was prepared. Reuse of and improper
This document, together with the concepts and designs presented herein, as an instrument of service, is
U-5530LAPROFESSIONALENGINEER
N ORTH CARO
LINA

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YERFFE
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WPROFESSIONALENGINEER
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YERFFE
M O ORE
W
SEAL
024436
C 2019
PHONE: [phone]
RALEIGH, NORTH CAROLINA 27601
421 FAYETTEVILLE ST., SUITE 600
NC LICENSE #F-0102
PREPARED IN THE OFFICE OF:
V-SHAPED WATERWAY WITH STONE CENTER DRAIN
PARABOLIC-SHAPED WATERWAY WITH STONE CENTER DRAIN
(SHAPED BY MOTOR GRADER)
(SHAPED BY BULLDOZER)
TRAPEZOIDAL
TYPICAL RIP RAP CHANNEL
TABLE
STONE CLASSIFICATION RIP RAP DEPTH
A
B
CLASS 1
CLASS 2
9"
18"
24"
24"-36"
W
2/3 W
D
6"
FILTER FABRIC OR
GRAVEL BEDDING
STONE SIZE PER DESIGN
D W
FILTER FABRIC OR
GRAVEL BEDDING
W
D
FILTER FABRIC OR
GRAVEL BEDDING
STONE SIZE PER DESIGN
18"
6"
18"
of clay, concrete, metal, plastic, or other suitable material (Practice 6.81, Subsurface Drain).
pipe conduit should be a minimum of 4 inches in diameter. Acceptable materials include perforated, continuous, closed-joint conduits
there is minimal mixing. Filter material should consist of at least 3 inches of material on all sides of the drain pipe. The drain
along the overlap. Spread granular materials in a uniform layer. When more than one gradation is required, spread the layers so
upstream edge which is buried a minimum 12 inches in a trench. See figure 6.14a, page 6.14.6. Space anchor pins every 3 feet
immediately after slope preparation. For synthetic filter fabrics, overlap the downstream edge by at least 12 inches with the
4. Place filters, beddings, and foundation drains to line and grade in the manner specified. Place filter and bedding materials
3. Rock riprap linings: Practice 6.15, Riprap.
surrounding material.
areas to grade by increasing the thickness of the liner or by backfilling with moist soil compacted to the density of the
2. Excavate the cross section to the lines and grades of the foundation of the liner as shown on the plans. Bring over-excavated
1. Clear the foundation area of trees, stumps, roots, loose rock, and other objectionable material.

CONSTRUCTION SPECIFICATIONS
channel in a healthy, vigorous condition to protect the area from erosion and scour during out-of-bank flow.
look for indications of piping, scour holes, or bank failures. Make repairs immediately. Maintain all vegetation adjacent to the
outlet and inlet sections and other points where concentrated flow enters. Carefully check stability at road crossings, and
Inspect channels at regular intervals as well as after major rains, and make repairs promptly. Give special attention to the

MAINTENANCE

days, stabilize channels by reaches.
vegetate all disturbed areas or otherwise protect them against soil erosion. Where channel construction will take longer than 30
5. Perform all channel construction to keep erosion and water pollution to a minimum. Immediately upon completion of the channel,
4. RIP RAP DEPTH AS PER DESIGN OR REFER TO TABLE.
3. DIMENSIONS FOR D & W VARIES ACCORDING TO DESIGN.
DESIGN PROCEDURE.
2. SIZE OF STONE MUST BE DETERMINED BY APPROPRIATE
PROHIBIT VEGETATIVE LININGS.
1. TO BE USED WHERE EXCESSIVE STORMWATER VELOCITIES
NOTE:
RIPRAP CHANNELS (6.31)
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
WIRE
HARDWARE
METAL POST
2'
HARDWARE CLOTH AND GRAVEL INLET PROTECTION DETAIL (6.51.1)
GRADE SEPARATED CROSSING
SAM'S BRANCH GREENWAY
U-5530LA
EC-6
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED
DETAILS
EROSION CONTROL
next rain. Take care not to damage or undercut the fabric during sediment removal.
Remove sediment from the pool area as necessary to provide adequate storage volume for the
Inspect the fabric barrier after each rain and make repairs as needed.
MAINTENANCE
8. #57 Stone shall be paid for at the contract unit price per ton "Sediment Control Stone"
sediment pool may be used for diking.
dike on the down slope side of the structure to prevent bypass flow. Material from within the
the drop inlet to keep runoff from bypassing the inlet. It may be necessary to build a temporary
7. The top of the frame and fabric must be well below the ground elevation downslope from
6. Fasten fabric securely to the stakes and frame. Joints must be overlapped to the next stake.
5. Place a 2 foot flap of wire mesh under the gravel for anchoring.
drive them into the ground, approximately 24 inches deep.
4. Space stakes evenly around the perimeter of the inlet a maximum of 4 ft apart, and securely
3. For stakes, use 5-foot steel posts. Steel posts are incidental to sediment control fence pay item.
2. Cut fabric from a continuous roll to eliminate joints.
used for short-term applications. It must be replaced every 60 days.
sufficiently porous to provide adequate drainage of the temporary sediment pool. Burlap may be
(50 lb/1 inch minimum) - that contains ultraviolet ray inhibitors and stabilizers. Fabric should be
1. As synthetic fabric, use a previous sheet of nylon, polyester, or ethylene yarn - extra strength
CONSTRUCTION SPECIFICATIONS
11/4/2019K:\RAL_Roadway\011725022 - U-5530LA\Plan\Plan Sheets\U5530LA_ero_dtl.dgnPROJECT:
SHEET NUMBER:JOB NUMBER:
REV. No.:REVISION:DATE:DRAWN BY:CHECKED BY:
Copyright Kimley-Horn and Associates, Inc., 2019
shall be without liability to Kimley-Horn and Associates, Inc.
reliance on this document without written authorization and adoption by Kimley-Horn and Associates, Inc.
intended only for the specific purpose and client for which it was prepared. Reuse of and improper
This document, together with the concepts and designs presented herein, as an instrument of service, is
U-5530LAPROFESSIONALENGINEER
N ORTH CARO
LINA

.
J
YERFFE
M O ORE
WPROFESSIONALENGINEER
N ORTH CARO
LINA

.
J
YERFFE
M O ORE
W
SEAL
024436
C 2019
PHONE: [phone]
RALEIGH, NORTH CAROLINA 27601
421 FAYETTEVILLE ST., SUITE 600
NC LICENSE #F-0102
PREPARED IN THE OFFICE OF:
DETAILS
EROSION CONTROL
GRADE SEPARATED CROSSING
SAM'S BRANCH GREENWAY
U-5530LA
EC-7
pumped effluent during construction.
sufficient quantity of bags to contain silt from
Replace bag when 3/4 full of sediment. Provide a
Inspect inlet pipe and bag for damage and blockage.
MAINTENANCE FOR SPECIAL STILLING BASIN (SILT BAG):
pumped effluent during construction.
sufficient quantity of bags to contain silt from
Replace bag when 3/4 full of sediment. Provide a
Inspect inlet pipe and bag for damage and blockage.
MAINTENANCE FOR ROCK PIPE INLET SEDIMENT TRAP, TYPE A:
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED
11/4/2019K:\RAL_Roadway\011725022 - U-5530LA\Plan\Plan Sheets\U5530LA_ero_dtl.dgnPROJECT:
SHEET NUMBER:JOB NUMBER:
REV. No.:REVISION:DATE:DRAWN BY:CHECKED BY:
Copyright Kimley-Horn and Associates, Inc., 2019
shall be without liability to Kimley-Horn and Associates, Inc.
reliance on this document without written authorization and adoption by Kimley-Horn and Associates, Inc.
intended only for the specific purpose and client for which it was prepared. Reuse of and improper
This document, together with the concepts and designs presented herein, as an instrument of service, is
U-5530LAPROFESSIONALENGINEER
N ORTH CARO
LINA

.
J
YERFFE
M O ORE
WPROFESSIONALENGINEER
N ORTH CARO
LINA

.
J
YERFFE
M O ORE
W
SEAL
024436
C 2019
PHONE: [phone]
RALEIGH, NORTH CAROLINA 27601
421 FAYETTEVILLE ST., SUITE 600
NC LICENSE #F-0102
PREPARED IN THE OFFICE OF:
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
DETAILS
EROSION CONTROL
GRADE SEPARATED CROSSING
SAM'S BRANCH GREENWAY
U-5530LA
EC-8
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED
11/4/2019K:\RAL_Roadway\011725022 - U-5530LA\Plan\Plan Sheets\U5530LA_ero_dtl.dgnPROJECT:
SHEET NUMBER:JOB NUMBER:
REV. No.:REVISION:DATE:DRAWN BY:CHECKED BY:
Copyright Kimley-Horn and Associates, Inc., 2019
shall be without liability to Kimley-Horn and Associates, Inc.
reliance on this document without written authorization and adoption by Kimley-Horn and Associates, Inc.
intended only for the specific purpose and client for which it was prepared. Reuse of and improper
This document, together with the concepts and designs presented herein, as an instrument of service, is
U-5530LAPROFESSIONALENGINEER
N ORTH CARO
LINA

.
J
YERFFE
M O ORE
WPROFESSIONALENGINEER
N ORTH CARO
LINA

.
J
YERFFE
M O ORE
W
SEAL
024436
C 2019
PHONE: [phone]
RALEIGH, NORTH CAROLINA 27601
421 FAYETTEVILLE ST., SUITE 600
NC LICENSE #F-0102
PREPARED IN THE OFFICE OF:
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 [phone].
reported to the Division's Emergency Response personnel at [phone], (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
DETAILS
EROSION CONTROL
GRADE SEPARATED CROSSING
SAM'S BRANCH GREENWAY
U-5530LA
EC-9
DOCUMENT NOT CONSIDERED FINAL
UNLESS ALL SIGNATURES COMPLETED