20131282 Ver 3_Application_20151015

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STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
PAT MCCROxv
GOVERNOR
October 15, 2015
U. S. Army Corps of Engineers
Regulatory Field Office
3331 Heritage Trade Drive, Suite 105
Wake Forest, NC 27587
ATTN: Mr. Eric Alsmeyer
NCDOT Division 5 Coordinator
NICHOLAS J. TENNYSON
SECRETARY
SUBJECT: Request for Modification of the Section 404 Individual Permit and Section
401 Water Quality Certification for the proposed East End Connector from NC
147 (Durham Freeway/Buck Dean Expressway) to north of NC 98 (Holloway
Street) in Durham, Durham County, North Carolina, Division 5. Federal Aid
Project No. NHF-76-1(2), TIP No. U-0071.
Debit $570.00 from WBS Element No. 34745.1.1
REFERENCE: 1) USACE Individual Permit, Action ID No. SAW-2011-00796, dated March 24,
2014
2) USACE Individual Permit Modification, Action ID No. SAW-2011-00796,
dated May 7, 2015.
3) NCDWR Section 401 Water Quality Certification, Neuse River Buffer
Authorization, and Isolated Wetlands Permit, NCDWR Project No. 20131282,
Certification N�o. 3980, dated January 28, 2014.
4) Modification to the NCDWR Section 401 Water Quality Certification, Neuse
River Buffer Authorization, and Isolated Wetlands Permit, NCDWR Project No.
20131282 ver. 2, Certification No. 3980, dated April 15, 2015.
Dear Sir:
The purpose of this letter is to request a second modification to the United States Army Corps of
Engineers (USACE) Section 404 Individual Permit and North Carolina Division of Water
Resources (NCDWR) Section 401 Water Quality Certification for the above-referenced project.
In addition to this cover letter, please find enclosed new Wetland Permit Drawing Sheet No. lA
of 91 and revised Wetland Permit Drawing Sheet Nos. 36, 74, 90, and 91 of 91.
MAILING ADDRESS: PHYSICAL ADDRESS:
NC DEPARTMENT OF TRANSPOR"fA'fION TELk;PHONF.: 919-707-6100 Ce[ltu�'y CC77t0i - Bulldltlg B
PROJECT DEVELOPMLNT AND �NVIRONMENTAL 1 O20 BiTCI] RidgO Di
ANn[ vsis �AX: 919-212-5785 Kaleigh, NC 27610-4328
NATURAL �NVIRONMENT SECTION
1598 MAII. SF.RVICE ChN"fER YVEliSlTG: WWW.NCDOT.ORG
Ra�E�cH NC 27699-1598

IMPACTS TO WATERS OF THE UNITED STATES
Surface Waters
All revisions occur within the Neuse River Basin (HUC 03020101). No revisions to wetland or
buffer impacts were made in this modification. Stream impact revisions occur at Sites 6 and 23.
Descriptions for the changes at each site are below. Please also see Table 1, which has been
revised to reflect these modifications. Revised Sites, sub-totals, and totals are in italics.
• Permit Site 6(Permit Drawing 36 of 91) at 21+78 -Y7RPA- Lt: The contractor has
installed the 66-inch pipe structure and rip rap bank stabilization following the most
recently approved permit drawing at this site. The Department proposes to install
additional Class II rip rap on the stream bank that would allow far the permanent stability
to extend to the utility line crossing (and associated rip rap bank stabilization)
downstream of this pipe structure that is depicted on Utility Stream Permit Drawing 2 of
5. This design change will result in a reduction in temporary stream impacts of 15 linear
ft. (all will be eliminated) and an increase in bank stabilization impacts of 25 linear ft.
• Permit Site 23 (Permit Drawing 74 of 91) at 45+00 -US70FLY- Lt: The contractor is
currently installing the single barrel culvert at this site. The Department has evaluated
existing streambank stability downstream of the culvert and proposes to add additional
Class II rip rap bank stabilization along both streambanks at the outlet to provide for
enhanced permanent stability. This design change will result in a reduction in temporary
stream impacts of 11 linear ft., a decrease in permanent stream impacts of 10 linear ft.,
and an increase in bank stabilization impacts of 13 linear ft.
In addition to the modifications at Sites 6 and 23, design revisions are also proposed at Sites 7, 8,
12, 17, and 23. These revisions will not alter the currently permitted impact totals at these sites.
Descriptions for the changes at these sites are below.
• Culverts at 95+48 -L- Lt/Rt (Permit Site 7, Permit Drawin� 36 of 91), 133+41 -L-
Lt/Rt (Permit Site 17, Permit Drawing 60 of 91 �not includedl), 34+45 -Y3- Lt/Rt
(Permit Site 23, Permit Drawing 74 of 91), and 19+07 -Y4- Lt/Rt (Permit Site 7,
Permit Drawing 36 of 91): The contractor has completed installation of the single-barrel
box culvert at 95+48 -L- Lt/Rt (Permit Site 7). The streambed has a headcut above the
culvert inlet. The Department proposes to install a one foot sill at the inlet and outlet of
the culvert at this location, as well as the other three culverts on the project (at Sites 7, 17,
and 23). Please see added Wetland Permit Drawing Sheet No. lA of 91 for the culvert sill
detail.
• Permit Site 7(Permit Drawing 36 of 91) at 20+50 -Y7RPA- Rt: The Department
proposes to install additional Class II rip rap bank stabilization on the north streambank at
the culvert outlet. Note that this rip rap is fully within the limits of Class II rip rap bank
stabilization previously permitted along the south streambank at the culvert outlet
following the most recently approved permit drawing.
U-0071 2"a Individual Permit Modification Application, October 2015
2

• Permit Site 8(Permit Drawing 36 of 91) at 20+00 -Y4- Lt: The original plan indicated
placement of Class II rip rap in an eXisting stream channel. Note that the stream impact
has been previously permitted as a total take. The Department has evaluated this design
based on existing field conditions and now proposes to relocate the channel into a rip rap
lined-lateral base false cut located at the toe of the fill slope. Please see Detail ZZ on the
permit drawing.
• Permit Site 12 (Permit Drawings 48 fnot includedl and 74 of 91) at 41+60 -
US70FLY- Rt: The original plan indicated construction of a tail ditch (with no flow line
liner) to convey stream flow through the project. The Department has evaluated this
design based on eXisting field conditions and now proposes to relocate the stream channel
into a tail ditch with Class I rip rap in the flow line and on the banks. Please see Detail
BG3 on Permit Drawing No. 74.
Table 1. Revised Surface Water Impacts within the Neuse River Basin (HUC 03020201)
Impacts Impacts
Permit Requiring USACE Requiring
Stream Stream Intermittent Impact Impacts
Site 1 USACE Mitigation 1:1 DWR
No. Name ID /Perennial Type (lin. ft.) mitigation Ratio mitigation
(lin. ft.) (lin. ft.)
1 UT of Goose S-B Intermittent Pe�' 412 OZ 03
Creek Fill
Temp. 14 0 0
Fill
2 UT of Goose S-A Intermittent pe�' 673 0� 03
Creek Fill
Bank 20 05 03
Stabil.
3 UT of Goose 5-35 Intermittent Pe�' 410 OZ 03
Creek Fill
Temp. 15 0 0
Fill
4 UT of Little 5-26 ��ermittent Pe�• 349 04 03
Lick Creek (Isolated) Fill
Bank 70 04 03
Stabil.
6 UT of Little S-25 Intermittent Bank 25 0� 03
Lick Creek Stabil.
U-0071 2"a Individual Permit Modification Application, October 2015
3

Table 1. Revised Surface Water Impacts within the Neuse River Basin (HUC 03020201) (Continued)
Impacts Impacts
Permit Requiring USACE Requiring
Site Stream Stream Intermittent Impact Impacts USACE Mitigation 1:1 DWR
No. Name ID /Perennial Type (lin. ft.) mitigation Ratio mitigation
(lin. ft.) (lin. ft.)
Temp. 104 0 0
Fill
� UT of Little 5-18 Perennial pe�' 665 665 2:1 665
Lick Creek Fill
Sab 1. 305 05 305
g UT of Little 5-19 Intermittent pe�' 443 0� 03
Lick Creek Fill
Perm. 29 OZ 03
9 UT of Little 5-24 Intermittent Fill
Lick Creek Bank 43 05 03
Stabil.
Temp. 132 0 0
Fill
12 UT of Little 5-16 Intermittent Pe�' 705 0� 03
Lick Creek Fill
Bank 42 �5 �3
Stabil.
Temp. 2g 0 0
Fill
1 � UT of Little S-6 Perennial pe�' 479 479 2:1 479
Lick Creek Fill
Sab l. g5 Os 85
17A UT of Little �_12 Intermittent Temp. 56 0 0
Lick Creek Fill
17B UT of Little S-14 Intermittent Temp. � 0 0
Lick Creek Fill
Temp. 65 0 0
Fill
23 UT of Little S-6 Perennial Pe�m' 270 270 2:1 270
Lick C�eek Fill
�abil. 140 OS 140
Temp. 23 0 0
24 UT of Little S-7 Intermittent Fill
Lick Creek Pe�• 104 OZ 03
Fill
U-0071 2"a Individual Permit Modification Application, October 2015

Table 1. Revised Surface Water Impacts within the Neuse River Basin (HUC 03020201) (Continued)
Impacts Impacts
Permit Requiring USACE Requiring
Site Stream Stream Intermittent Impact Impacts USACE Mitigation 1:1 DWR
No. Name ID /Perennial Type (lin. ft.) mitigation Ratio mitigation
(lin. ft.) (lin. ft.)
Temp. � 0 0 0
Fill
25 UT of Little S-2 Intermittent pe�' 168 0� 03
Lick Creek Fill
Bank 35 OS 03
Stabil.
Temp. 23 0 0
Fill
26 UT of Little S-2 Intermittent Pe�' S0 0� 03
Lick Creek Fill
Bank 50 Os 03
Stabil.
27 UT of Little S-6 Perennial Ba� 10 05 106
Lick Creek Stabil.
UT of Little Utility/ s 3
U-1 Lick Creek 5-25 Intermittent Bank 20 0 0
Stabil.
Temporary Fill Impacts (Non-isolated) 462 0 0
Temporary Fill Impacts (Isolated) 15 0 0
Permanent Fill Impacts (Non-isolated) 4,408 1,414 1,414
Permanent Fill Impacts (Isolated) 349 04 0
Bank Stabilization Impacts (Non-isolated) 775 0 540
Bank Stabilization Impacts (Isolated) 70 04 0
TOTAL TEMPORARY IMPACTS 477 0 0
TOTAL PERMANENT IMPACTS 5,602 1,414 1,954
��
.�ui,aui iv� a�� i�vui wi, �v ��.-vuiiwauv�i Ya�,nu� uawu �Yu� i� <.vi �.
�Per USACE, no compensatory mitigarion is required far permanent impacts (including bank stabilization) to USACE-regulated intermittent
streams associated with this project.
3 Per the NCDWQ Public Memorandum dated August 14, 2009, any NCDOT project within the Merger O1 process that has reached CP 4A
prior to the effective date of October 16, 2009 is not subject to the NCDWR Intermittent Stream Mitigation Policy. This project
reached CP 4A on December 13, 2007 and is not subject to this policy. Therefore, no compensatory mitigation for permanent
impacts along intermittent streams is required by NCDWR for this project.
4Isolated streams are not regulated by USACE.
SPer USACE, bank stabilization impacts do not require compensatary mitigation.
6Although this Site does not individually exceed the 150 linear foot threshold set by NCDWR for requiring compensatory mitigation, when
combined with other Sites along the same stream, the cumulative impact to the stream exceeds that threshold.
U-0071 2"a Individual Permit Modification Application, October 2015

Compensatory Miti�ation
Compensatory mitigation requirements for permanent stream impacts associated with U-0071
within the Neuse River Basin (HUC 03020101) are summarized below in Table 2. Wetland
mitigation requirements have not changed since the original application and subsequent permits.
Buffer mitigation requirements have not changed since the 1 st permit modification application
and subsequent revised certification. Revised sub-totals and totals are in italics.
Stream Impacts
A total of 5,602 linear feet of permanent warm water stream impacts will occur within the Neuse
Basin. This is an increase of 28 linear feet compared to the 5,574 linear feet that was reported in
the lst permit modification application. The 28 linear-foot increase is due to the addition of 38
linear feet of bank stabilization, minus 10 linear feet of permanent stream impacts due to the
reduction at Site 23.
A total of 1,414 linear feet of permanent warm water stream impacts will require compensatory
mitigation per the U�SACE at a 2:1 ratio. This is a reduction of 10 linear feet campared to the
original permit application/lst permit modification application and is due to the reduction in
permanent stream impacts at Site 23. The 38 linear-foot increase in bank stabilization impacts
does not require compensatory mitigation per USACE. Since there was a reduction in mitigable
impacts rather than an increase, a revised Mitigation Acceptance Letter from the N.C.
Department of Environmental Quality (DEQ), Division of Mitigation Services (DMS) is not
being pursued at this time.
The amount of compensatory mitigation required by NCDWR increased since the 1 st permit
modification application from 1,951 linear feet to 1,954 linear feet of permanent warm water
stream impacts. This revised amount will be mitigated for at a 1:1 ratio.
After revisions, the total USACE mitigation requirement still exceeds the NCDWR mitigation
requirement.
Table 2. Revised Neuse River Basin Compensatory Mitigation Summary
Stream Impacts
(lin. ft.)
Impacts Requiring 1,414
Mitigation
Mitigation Ratio 2:1
Total DMS
Mitigation 2, 828
Required
U-0071 2"a Individual Permit Modification Application, October 2015
6

A copy of this permit modification application and its distribution list will be posted on the
NCDOT website at I�tt�}s_;';%c_ull��ect.ncde�i.�c>v;'rest�«rces;'t:�:nvironi�le��tal.`Pa��es�'d�tault.a��x., under
_..._.._ __.__.__------ -------------------.._..---
Quick Links > Permit Applications. Thank you for your time and assistance with this project.
Please contact James Mason at either jsnlaso��'ri;:ncdot.«,ov or [phone] if you have any
questions or need additional information. �
Sincerely,
' . _,,/� , ""__"
I
�Richard W. Hancock, P.E., Manager
�Yr
Project Development and Environmental Analysis Unit
cc: NCDOT Permit Application Standard Distribution List
U-0071 2"d Individual Permit Modiiication Application, October 2015
7

Permit Drawing
Sheet lA of 91
Added October 2015
ELEVATION
� DIMENSION TO BE DETERMINED BY HYDRAULICS UNIT.
1'-0"
N�
JWEL (TYP.) AT A
SPACING OF 4'-0"
2 LAYERS OF 30 LB.
ROOFING FELT TO
PREVENT BOND
(TYPe)
SECTION THROUGH SILL
� DOWELS MAY BE PUSHED INTO GREEN CONCRETE
AFTER SLAB HAS BEEN FLOAT FINISHEDe
CULVERT SILL DETAILS
FIGURE 9 - 18

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WETLAND PERMIT IMPACT SUMMARY
WETLAND IMPACTS SURFACE WATER IMPACTS
Hand Existing Existing
Permanent Temp. Excavation Mechanized Clearing Permanent Temp. Channel Channel Natural
Site Station Structure Fillln Fillln in Clearing in SW SW Impacts Impacts Stream
No. (From/To) Size / Type Wetlands Wetlands Wetlands in Wetlands Wetlands impacts impacts Permanent Temp. Design
(ac) (ac) (ac) (ac) (ac) (ac) (ac) (ft) (ft) (ft)
� L 32+58 to 36+64 FILL 0.04 412
L 37+75 - SR1 34+g4 Y17 66" RCP-IV, 48"RCP-III,
2 11+14 2a°RCP-III 0.08 0.07 <0.01 673 14
BANK STABILIZATION 2Q
3 L 44+53 30" RCP-III Q.Q6 �.�6 410
* 4 SR2 36+89 Y7 17+24 48" RCP-III, 60" RCP-III 0.05 0.03 <Q.Q� 349 15
BANK STABILIZATION 7Q
* 5(T) Y7LPA 13+98 60" RCP-III 0.06
6 Y7RPA 21+78 BANK STABILIZATION <0.01 Z5
7 Y7RPA 20+75 to Y6 15+90 8'x9' RCBC 0.17 �.0� 665 104
BANK STABILIZATION 3O5
Y4 19+63 to 22+30 and 30" RCP-III, FILL
8 Y4 23+04 to 25+59 �.�4 �.�7 443
Q Y5 23+20 RT. 30" RCP-III �.�3 <Q.Q1 29 �
BANK STABILIZATION 43
10 Y5 26+62 RT. FILL Q.Q� Q.Q�
11 Y6 11+15 off 104 RT. 18" RCP-III <Q.Q�
12 Y2 26+53 to 27+90 LT. RFr.NnrvniFi i�ATinrv 0.11 0.03 705 132
BANK STABILIZATION 42
13(T) Y4 35+48 36" RCP-IV 0.78
* 14(T) L 122+93 30" RCP-V Q.Q$
* 15(T) L 132+13 FILL 0.03
* 16(T) L 132+33 RT. FILL 0.05
17 L 133+41 6'x7' RCBC �.�6 <Q.Q� 479 28
BANK STABILIZATION $ -rj
17A L 133+26 264' LT FILL <0.�� 56
TOTALS: 0.46 0.01 <0.01 1.42 0.04 4755 349
*Rounded totals are sum of actual impacts
NOTES:
* indicates isolated wetland
(T) Indicates Total Take
Revised October 2015

WETLAND PERMIT IMPACT SUMMARY
WETLAND IMPACTS SURFACE WATER IMPACTS
Hand Existing Existing
Permanent Temp. Excavation Mechanized Clearing Permanent Temp. Channel Channel Natural
Site Station Structure Fillln Fillln in Clearing in SW SW Impacts Impacts Stream
No. (From/To) Size / Type Wetlands Wetlands Wetlands in Wetlands Wetlands impacts impacts Permanent Temp. Design
(ac) (ac) (ac) (ac) (ac) (ac) (ac) (ft) (ft) (ft)
�7B L 133+69 263' RT FILL <Q.Q� 7
18(T) L 134+53 LT. FILL 0.19
� g not jurisdictional 0
20 DFLW 27+34 to 38+06 42" RCP-III Q.Q2 <Q.Q� 2� $ � 7
2� DFLW 39+19 FILL Q.Q� 28
22 DFLW 41+62 FILL Q.Q� 23
23 Y3 34+45 8'x10' CULVERT 0.09 0.�� 270 65
BANK STABILIZATION �4O
24 Y3 40+16.69 RT 30" RCP-III �.04 �.�� 104 23
25 Y9 28+10 LT to 26+85 RT 66" RCP-III �.�� <�.�� 168 � �
BANK STABILIZATION 35
26 Y3 57+75 LT to RT 60" RCP-III Q.Q� <Q.Q� 5Q 23
BANK STABILIZATION 5O
27 L 129+77 414LT. BANK STABILIZATION � Q
2$ DFLW 52+08 LT & RT 36" RCP �.�2 �.�� 121 2�
2Q DFLW 72+35 LT FILL < Q.Q� t}Q
30 DFLW 73+72 LT FILL < 0.01 10
31 DFLW 78+76 LT& 81+14 RT BANK STABILIZATION 61
Construction Activity <Q.Q� 22
32 DFLW 78+79 LT Construction Activity <0.01 9
TOTALS (page 2 of 2): 0.00 0.00 0.00 0.4 0.03 1328 196
TOTALS (page 1 of 2): 0.46 0.01 <0.01 1.42 0.04 4755 349
TOTALS: 0.46 0.01 <.0.01 1.82 0.07 6083 545
*Rounded totals are sum of actual impacts
NOTES:
* indicates isolated wetland
(T) Indicates Total Take
Revised October 2015