20200757 Ver 1_BurialWaiverRequest_SR 1501_20200610

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STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
Roy COOPER J. ERIC BOYETTE
GOVERNOR SECRETARY
Brad Shaver, NCDOT Coordinator Joanne Steenhuis, NCDOT Coordinator
Wilmington Regulatory Field Office NC Department of Environmental Quality
US Army Corps of Engineers Division of Water Resources
69 Darlington Avenue 127 Cardinal Drive Ext.
Wilmington, NC 28403 Wilmington, NC 28405
Date: June 10, 2020
Subject: Onslow County SR 1501 Sand Ridge Road Pipe Replacement
WBS#: D1716403.2067012
(DWQ Permit Fee: $240)
Dear Mr. Shaver and Ms. Steenhuis:
The North Carolina Department of Transportation plans to replace existing twin 48" in diameter by
65' in length CMP at location Lat: 34.6673, Long:-77.1876 on SR 1501 Sand Ridge Road where it
crosses a UT to the Parrot Swamp (SA; HQW) approximately 100 yards SW of SR 1509 Queens
Creek Road. The proposed replacement structure is a 60" in diameter by 65' in length CMP w/
HW. NCDOT would like to request a waiver from the depth specifications of the regional
conditions 3.6.1 of the Nationwide Permit 3 and the corresponding General Condition 11 of the
Water Quality General Certification No. 4132. Due to the existing geomorphologic fall of the
stream channel, burying both of the inverts of the new CMP 1' below the natural streambed
elevation would result in a greater than 6 percent pipe slope, causing a high flow erodible condition.
NCDOT plans to bury the inlet 1' and install the pipe on a 3% slope which would set the outlet
approximately at grade with the natural stream bed. Approximately 5 LF of riprap is proposed to be
placed in the downstream channel to prevent any scour due to insufficient burial. (See Attached
Permit Drawing). An additional 5' of riprap is proposed in the upstream channel to fill in a hole
cause by the joint failure during the May 19, 2020 storm event.
By copy of this letter and enclosures, NCDOT is requesting issuance of Nationwide 3 approval
from the US Army Corps of Engineers and 401 Water Quality Certification (WQC) #4132 approval
from the Division of Water Resources (DWR). A method of debiting $240 to process the WQC
request has been provided as noted in the subject line of this application.
If you have any questions or need any additional information, please contact me at [phone]
or at [e-mail].
Sincerely, &
Sean Farrell
NCDOT Division 3
Environmental Specialist
Mailing Address:
NC DEPARTMENT OF TRANSPORTATION
DIVISION OF HIGHWAYS
5501 BARBADOS BOULEVARD
CASTLE HAYNE, NC 28429-5647

SR 1501 Sand Ridge Road
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6/10/2020, 7:38:45 AM 1:9,028
0 0.05 0.1 0.2 mi
Surface Water Classifications River Basins
0 0.1 0.2 0.4 km
WOK USGS The National Map: National Boundaries Dataset, 3DEP Elevation
NCDENR Div. Water Resources
NCDENR - Division of Water Resources I USGS The National Map: National Boundaries Dataset, 3DEP Elevation Program, Geographic Names Information System, National Hydrography Dataset, National Land Cover Database, National Structures Dataset, and

SR 1501 Sand Ridge Rd.
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0 0.13 0.25 0.5 mi
Zoom to Secondary Roads _Query result Local individual resources & centerpoints Local HD Center Point
f Local Landmark 0 0.2 0.4 0.8 km
Local districts & boundaries Surveyed Only individual resources & centerpoints
Local Landmark, Gone Surveyed Only Copyright:©2013 National Geographic Society, -cubed
North Carolina State Historic Preservation Office
Esri, HERE i Copyright:© 2013 National Geographic Society, i-cubed i

Soil Map—Onslow County, North Carolina
(SR 1501 Sand Ridge Road)
299300 299370 299440 299510 299.580 299650 299720
34° 40' 10" N
34' 39' 56" N
299300 299370 299440 299510 299580 299650
3
io
Map Scale: 1:3,140 if printed on A landscape (11" x 8.5") sheet.
Meters
F N 0 45 90 180 270
Feet
0 150 300 600 900
Map projection: Web Mercator Comer coordinates: WGS84 Edge tics: L TNI Zone 18N WGS84
usDA Natural Resources Web Soil Survey
Conservation Service National Cooperative Soil Survey
299790 299860
299720 299790 2998M
0
299930o
34° 40 10 N
34° 39' 56" N
299930
3
m
0
6/10/2020
Page 1 of 3

MAP LEGEND
Area of Interest (AOI)
0
Area of Interest (AOI)
Soils
0
Soil Map Unit Polygons
rwr
Soil Map Unit Lines
0
Soil Map Unit Points
Special
Point Features
Vo
Blowout
Borrow Pit
Clay Spot
Closed Depression
Gravel Pit
.14
Gravelly Spot
0
Landfill
Lava Flow
Marsh or swamp
+
Mine or Quarry
Miscellaneous Water
Perennial Water
Rock Outcrop
Saline Spot
4
Sandy Spot
Severely Eroded Spot
Sinkhole
Slide or Slip
oa
Sodic Spot
Soil Map—Onslow County, North Carolina
(SR 1501 Sand Ridge Road)
MAP INFORMATION
Spoil Area
The soil surveys that comprise your AOI were mapped at
1:24,000.
Stony Spot
Very Stony Spot
Warning: Soil Map may not be valid at this scale.
Wet Spot
Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
Other
line placement. The maps do not show the small areas of
.-
Special Line Features
contrasting soils that could have been shown at a more detailed
scale.
Water Features
Streams and Canals
Please rely on the bar scale on each map sheet for map
measurements.
Transportation
Rails
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
rwr
Interstate Highways
Coordinate System: Web Mercator (EPSG:3857)
US Routes
Maps from the Web Soil Survey are based on the Web Mercator
L
Major Roads
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Local Roads
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
Background
.
Aerial Photography
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Onslow County, North Carolina
Survey Area Data: Version 21, Sep 16, 2019
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Dec 31, 2009—Oct
30, 2017
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
USDA Natural Resources Web Soil Survey 6/10/2020
Conservation Service National Cooperative Soil Survey Page 2 of 3

Soil Map—Onslow County, North Carolina
SR 1501 Sand Ridge Road
Map Unit Legend
Map Unit Symbol
Map Unit Name
Acres in AOI
Percent of AOI
MaC
Mk
Marvyn loamy fine sand, 6 to
15 percent slopes
15.3
8.1
35.2%
18.6%
Muckalee loam
NoB
Norfolk loamy fine sand, 2 to 6
percent slopes
17.7
40.9%
On
Onslow loamy fine sand
2.3
5.2%
Totals for Area of Interest
43.4
100.0%
usDA Natural Resources Web Soil Survey 6/10/2020
Conservation Service National Cooperative Soil Survey Page 3 of 3

93
92
91
90
89
88
87
ONSLOW COUNTY - SR 1501 SAND RIDGE ROAD (34.66739-770 876)
PROPOSED PPE REPLACEMENT-WBS NO. JB.206711
SITE PPE PROFLE
SCALE
1"=2' VERTICAL
I"=20' HORIZONTAL
PROPOSED TEMPORARY SHEETPILE------------
FOR DEWATERING
PROPOSED INLET INVERT = 85.7
86
85 86e69
84
86.89
7
83
81
EXISTING 65' x 48" CMP
S
•03
PROPOSED 5 LF OF RIPRAP IN UPSTREAM CHANNEL
TO FILL IN EXISTING SCOUR HOLE (DEPTH 83.79)
PROPOSED 5' IN LENGTH BY I' IN DEPTH CLASS I RIPRAP PA
EW 65' x 60" CMP
XISTING OUTLET INVERT = 86.99
ROPOSED OUTLET INVERT = 83.75
83.79 83e79
00 80 60 40 20 0 20 40 60 80 100
93
92
91
90
89
87
LEGEND
PROPOSED PIPE
- - - - - - - - - - EXISTING PIPE
- - - - - STREAMBED PROFILE
TEMP. SHEETPILE
FLOW DIRECTION
NOTES-.
H.I. = 105.99
84
DRAWN BY. S. FARRELL
83
DATE.06/08/2020
82
PERMIT DRAWING. IOF 1
81
CHECKED BY. M. HERNDON
80
PROJECT DESCRIPTION.
REPLACE EXISTING 65' X 48" CMP w/
NEW 65' x 60" CMP w/ HW
COLINTY.ONSLOW

WETLAND PERMIT IMPACT SUMMARY
WETLAND IMPACTS SURFACE WATER IMPACTS
Site
No.
Station
(From/To)
Structure
Size / Type
Permanent
Fill In
Wetlands
(ac)
Temp.
Fill In
Wetlands
(ac)
Excavation
in
Wetlands
(ac)
Mechanized
Clearing
in Wetlands
(ac)
Hand
Clearing
in
Wetlands
(ac)
Permanent
SW
impacts
(ac)
Temp.
SW
impacts
(ac)
Existing
Channel
Impacts
Permanent
(ft)
Existing
Channel
Impacts
Temp.
(ft)
Bank
Stabilization
(ft)
Site 1
N/A
Temporary Dewatering
15
Site 1
N/A
Riprap in channel
10
TOTALS*:
10
15
*Rounded totals are sum of actual impacts
NOTES: