20190854 Ver 1_SR1569_BurialWaiver_20190626

STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
Roy COOPER JAMES H. TROGDON, III
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 26, 2019
Subject: Pender County SR 1569 Hoover Road Pipe Replacement
WBS#: 17BP.3.C.2
(DWQ Permit Fee: $240)
Dear Mr. Shaver and Ms. Steenhuis:
The North Carolina Department of Transportation plans to replace replaced two (2) existing 71" x
47" in diameter by 50' in length CMPAs at location Lat: 34.394050, Long:-77.709757 on SR 1569
Hoover Road where it crosses a UT to Godfrey Creek (C; Sw) approximately 1.7 miles N of the
intersection of Hoover Road and US-17. The proposed replacement structure is two (2) 72" in
diameter x 50' in length CMPs 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 proposed (2) 72"
CMPs l' below the natural streambed elevation would result in a greater than 5 percent pipe slope,
causing a high flow erodible condition. NCDOT plans to bury the inlet l' and install the pipe on a
2% slope which would set the outlet approximately at grade with the natural stream bed.
Approximately 10 LF of riprap is proposed to be placed in the stream channel to protect from
further scour and destabilization. (See Attached Permit Drawings).
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,
�2CLrL �Gii2-��
Sean Farrell
NCDOT Division 3
Environmental Specialist
Mailing Address:
NC DEPARTMENT OF TRANSPORTATION
DIVISION OF HIGHWAYS
5501 BARBADOS BOULEVARD
CASTLE HAYNE, NC 28429-5647

r���I 'irr►t�11���1���
Project Vicinity
2,0117
pOR7H c490G
row,
9
Q SEPI
C ENGINEERING &
C O N S T R U C T I ON
Figure 1 -
Project Vicinity
SR 1569 Hoover Road
Pipe Replacement (Site 2)
Pender County, North Carolina
May 2016
0
0
c
C L'
So
rC
Castle Bay Dr
creeK Ftd
Gooey
a
N �
a
0 0 500 1,000 2,000
�� �,MooreQr z Feet

This Exhibit is for planning purposes only and shown herein does not meet NC 47-30 Requirements and
therefore is not for design, construction, or recording or transfer of title. The Exhibit was compiled from
available isobtained from the sources listed below.10
1 inch - 400 feet
Figure 2 - Aerial Photography
SEPI
sources:
NCDOT, ESRI, Pander County USDA Soil Survey, LIDAR
GRAPHIC SCALE
Hoover Road (SR 1569) Site 2
cl__
200 400 80�
Pipe Replacement
ENGINEERING &
May 2016
Feet
Transportation C O N S T R U C T I O N

Legend
Hoover Road Site 2 Project Study Area
' + Upland Sample Point
F �'
ZIN Wetland Sample Point
Perennial �� 1
Wetland41
Line
VW0 "� r
.000.4
rP _Mtn
M� p�
F"
.1
a
17'
1`
w
UA
I- �

This Exhibit is for planning purposes only and shown herein does not meet NC 47-30 Requirements and
therefore is not for design, construction, or recording or transfer of title. The Exhibit was compiled from
available isobtained from the sources listed below.
1 inch - 75 feet
Figure 4 - Jurisdictional Features
SEPI
sources:
NCDOT, ESRI, Pander County USDA Soil Survey, LIDAR
GRAPHIC SCALE
Hoover Road (SR 1569) Site 2
0 37.5 75 150
Pipe Replacement
ENGINEERING &
May 20,8
Feet
TransportationC 0 N s T R U C T 1 0 N

Legend
Hoover Road Site 2 Project Study Area
{� Upland Sample Point
Wetland Sample Point
Perennial Stream
Wetland Line _
S
go
1
ti
�.
4W
4L
I�
This Exhibit is for planning purposes only and shown herein does not meet NC 47-30 Requirements and
therefore is not for design, construction, or recording or transfer of title. The Exhibit was compiled from
available isobtained from the sources listed below.
1 inch - 200 feet
Figure 5 - U S G S Top o
sources:
ESRI, Pender County USDA Soil Survey, LIDARSEPI
GRAPHIC SCALE
Hoover Road (SR 1569) Site 2
cl__NCDOT,
100 200 400
Pipe Replacement
ENGINEERING &
May 2016
Feet
Transportation C 0 N S T R U C T 1 0 N

Legend
Hoover Road Site 2 Project Study Area
{� Upland Sample Point
Wetland Sample Point
= Perennial Stream
Wetland Line
++
Legend
Elevation
Value
High : 75
- Low: 25
Hillside Shade
Value
- High : 127
- Low: 0
This Exhibit is for planning purposes only and shown herein does not meet NC 47-30 Requirements and
therefore is not for design, construction, or recording or transfer of title. The Exhibit was compiled from
available information obtained from the sources listed below.
1 inch - 200 feet
Figure 6 - L i DAR
SEPI
Sources:
NCDOT, ESRI, Pander County USDA Soil Survey, LIDAR
GRAPHIC SCALE
Hoover Road (SR 1569) Site 2
N,
0 100 200 400
Pipe Replacement
ENGINEERING &
May 2016
Feet
Tr-ansportuirorr C 0 N S T R U C T 1 0 N

PENDER
COUNTY
- NORTH OF HAMPSTEAD
LEGEND
SR 1569
(HOOVER
ROAD) MILES N OF US 17
PROPOSED PIPE
07
EXISTING PIPE
MAN FLOW
STREAM PROFILE
- - - - - STREAMBED PROFILE
100
100
DATA COLLECTED° 06/25/2019
FLOW DIRECTION
99
SCALE
PROPOSED PIPE:
TWO (2) 72" CMP 50' LONG AND SPACED
99
1"=2' VERTICAL
3' APART ON 94° SKEW WITH 36' HEADWALLS
98
I"=20' HORIZONTAL
____________
-
I ON INLET AND OULET WITH 4.5'
WINGWALLS ON 15° SKEW
I
98
97
EXISTING PIPE:
TWO 71" X 47" CMPAS.
i
I
9 7
AT 50 FT LONG ON -90 DEGREE SKEW
N 0 T E S o
96
96
q5
EXISTING PIPE
/INLET INVERT -
94.1 EXISTING PIPE
OUTLET INVERT - 94.47
q `j
93.98 94.07 - ---
93.68 93.28 /
94 ��9,3.21 93.45 --- --- - - - - -_ �_---
92.71
92
EXISTING STREAMBED
91 (APPROXIMATED B/W READINGS) C _ OQ O2
PROPOSED PIPE J
INLET INVERT - 92.20 /
90
88
PROPOSED PIPE
INLET INVERT - 91.2
00 80 60 40 20 0 20
92.26
EXISTING RIPRAP FLUME TO BE REMOVED
•A
93
90.73 91.03
91.13 90.88 90.73 90.62 90.43 91
90
90.23/4"�
89.6
89
PROPOSED NEW RIPRAP FLUME 12 IN. DEEP 88
TO EXTEND APPROX.1O LF IN STREAM
CHANNEL ON 2% SLOPE IN EXISTING RIPRAP
FOOTPRINT.
40 60 80
00 125
DRAWN BY: C. DUSTIN
DATE: 06/25/2019
PREMIT DRAWING. IOF I
CHECKED BY: M. HERNDON
PROJECT DESCRIPTION: REPLACE
(2) @ 71" x 47" CMPA WITH (2) Ina 72"
CMP W/HEADWALL,
COUNTY:PENDER

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
Rip Rap/ Flowable Fill
10
SITE #1
Deviate ring
15
TOTALS*:
10
15
*Rounded totals are sum of actual impacts
NOTES:
20131024