20130223 Ver 1_Application_20130412 (2)

February 26, 2013
Mr. Gregory J. Thorpe, Ph.D.
Manager, Project Development and Environmental Analysis Unit
North Carolina Department of Transportation
1548 Mail Service Center
Raleigh, North Carolina 27699-1548
Dear Dr. Thorpe:
��-0223
\1 vl
Subject: EEP Mitigation Acceptance Letter:
U-2524C / D, Greensboro — Western Loop from North of Bryan Boulevard to Lawndale
Drive, Guilford County
The purpose of this letter is to notify you that the Ecosystem Enhancement Program (EEP) will provide the
compensatory stream and riparian wetland mitigation for the subject project. Based on the information supplied by
you on February 25, 2013, the impacts are located in CU 03030002 of the Cape Fear River basin in the Central -
Piedmont (CP) Eco-Region, and are as follows:
Cape Fear
03030002
SICP
Stream
Wetlands
Buffer (Sq. Ft.)
Cold
Cool
Warm
Riparian
Non-
Riparian
Coastal
Marsh
Zone 1
Zone 2
Impacts*
(feet/acres)
0
0
7,386.0
6.12
0
0
0
0
*Some of the stream and wetland impacts may be proposed to be mitigated at a 1: I mitigation ratio. See permit application for details.
EEP commits to implementing sufficient compensatory stream and riparian wetland mitigation credits to
offset the impacts associated with this project as determined by"the regulatory agencies in accordance with the N.C.
Department of Environment and.Natural Resources' Ecosystem Enhancement Program In -Lieu Fee Instrument .
dated July 28, 2010. If the above referenced impact amounts are revised, then this mitigation acceptance letter will
no longer be valid and a new mitigation acceptance letter will be required from EEP.
If you have any questions or need additional information, please contact Ms. Beth Harmon at 919-707-
8420.
Sincerely,
Michael El on
EEP Acting Director
cc: Mr. Andrew Williams, USACE — Raleigh.Regulatory Field Office
Ms. Amy Chapman, Division of Water Quality, Wetlands/401 Unit
File: U-2524C / D
1Z /storr,ng_ £.
... Protecting'Otte State
NCD NR
North Carolina Ecosystem Enhancement Program, 1652 Mail Service Center, Raleigh, NC 27699-1652 / 919-707-8976 / http://portal.ncdenr.org/web/eep

PAT L. MCCRORY
GOVERNOR
STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
February 26, 2013
Revised April 12, 2013
U. S. Army Corps of Engineers
Regulatory Field Office
3331 Heritage Trade Drive, Suite 105
Wake Forest, NC 27587
ATTN: Mr. Andy Williams
NCDOT Coordinator
ANTHONY J. TATA
SECRETARY
SUBJECT: Application for Section 404 Individual Permit and Section 401 Individual
Water Quality Certification for the proposed Greensboro Western Loop from
north of SR 2176 (Bryan Boulevard) to SR 2303 (Lawndale Drive), Guilford
County, Division 7. Federal Aid Project No. STP- NHF- 124(1), WBS Element
No. 34820.1.2, TIP No. U -2524C and D.
Debit $570.00 from WBS Element No. 34820.1.2
Dear Sir:
The North Carolina Department of Transportation ( NCDOT) proposes to construct a section of
the Greensboro Western Loop from north of SR 2176 (Bryan Boulevard) to SR 2303 (Lawndale
Drive) in Greensboro, for a total of 4.8 miles. The project involves constructing a six -lane
divided facility on new location.
In addition to this cover letter, the application package consists of an ENG Form 4345, North
Carolina Ecosystem Enhancement Program (NCEEP) acceptance letter, Interagency Hydraulic
Design Review meeting minutes for U -2524C (Concurrence Points 4B and 4C), Stormwater
Management Plan, permit drawings, and half -size roadway plan sheets.
PROJECT SCHEDULE
For construction purposes, the remaining Greensboro Western Loop project has been broken
down into two sections, C and D. Sections A and B were permitted separately and completed in
2008. Table 1 reflects the project breakdown and section termini.
Table 1. Descri tion of Project Sections for Construction Pur oses
Section
Project Termini
Let Date
U -2524A & B
North of I -85 to North of 2176 (10 miles)
Complete (July 3, 2008)
U -2524C
North of SR 2176 to US 220 (3.0 miles)
September 17, 2013
U -2524D
US 220 to SR 2303 (1.8 miles)
October 18, 2016
MAILING ADDRESS:
NC DEPARTMENT OF TRANSPORTATION
PROJECT DEVELOPMENT & ENVIRONMENTAL ANALYSIS UNIT
1598 MAIL SERVICE CENTER
RALEIGH NC 27699 -1548
TELEPHONE: [phone]
FAX: 919 - 212 -5785
WEBSITE:NCDOT.GOV
LOCATION:
CENTURY CENTER, BUILDING B
1020 BIRCH RIDGE DRIVE
RALEIGH NC 27610

Within the U -2524C construction footprint, 16 streams and 17 wetlands were identified. Eight
streams were identified within the U -2524D construction footprint. Jurisdictional areas were
initially verified by USACE Regulatory Specialist Jean Manuel on December 10, 2001 and re-
verified by USACE Regulatory Specialist Todd Tugwell on March 30, 2006. No jurisdictional
determination (JD) was received from USACE for either field visits. Jurisdictional features were
last re- verified by USACE Regulatory Specialist Andy Williams and NCDWQ representative
Amy Euliss on July 25, 2012 for U -2524C only. A request packet for the final JD for U -2524C
was submitted to the USACE on September 4, 2012. No written JD was received from the
USACE for the re- verification.
IMPACTS TO WATERS OF THE UNITED STATES
U -2524C
This project lies within the Piedmont Physiographic Province in the Cape Fear River Basin
[Hydrologic Unit Code (HUC) 03030002]. Jurisdictional features within the U -2524C
construction footprint that will be impacted include 13 unnamed tributaries (UT) to Horsepen
Creek [NCDWQ Classification WS -III; NSW; NCDWQ Index No. 16- 11- 5- (0.5)], Horsepen
Creek and 1 UT to Horsepen Creek [NCDWQ Classification WS -III; NSW, CA; NCDWQ Index
No. 16- 11- 5 -(2)] and 15 riparian wetlands.
U -2524D
Jurisdictional features within the U -2524D construction footprint that will be impacted include
one UT to Horsepen Creek [NCDWQ Classification WS -III; NSW, CA; NCDWQ Index No. 16-
11-5-(2)], Richland Creek, and five UTs to Richland Creek [NCDWQ Classification WS -III;
NSW; NCDWQ Index No 16- 11- 7 -(1)]. No wetlands were located within the U -2524D footprint
based upon field verification from 2006.
There are no designated Outstanding Resource Waters (ORW), High Quality Waters (HQW),
Water Supply I (WS -I), or Water Supply II (WS -II) waters within 1.0 mile of the project area.
All streams within the project area and within a mile of the project area are listed on the 2012
303(d) Final List of Impaired Waters of North Carolina due to impaired ecological/biological
integrity.
Surface Waters
U -2524C (Revised Anril 12.2013
Total surface water impacts for U -2524C are 3,120 linear feet of permanent stream impacts and
358 linear feet of temporary stream impacts. Tables 2 -3 list the site number, reference number,
stream name, amount of permanent and temporary impacts, and amount of mitigation required.
Utilities
A total of 160 linear feet of temporary stream impact will occur due to stream access and utility
line removal (Colonial Pipe Line) for Section U- 2524C. These impacts will involve trenching the
stream banks and replacing to natural grade. Utility impacts for Section U -2524D will be
evaluated during the permit modification process.
U -2524C & D Individual Permit Application
3

Table 3. U -2524C Surface Water Impacts (Final) Revised April 12, 2012
U -2524C & D Individual Permit Application
Impacts
Impacts
Permit
Permanent
requiring
requiring
Temporary
Site No.
Impact Type
Imp
Impact
NCDWQ
USAGE
Impact
Length (ft)
mitigation (ft)
mitigation (ft)1
Length (ft)
48" RCP
385
385
385
13
1
Bank
11
11
OZ
Stabilization
30" RCP
13
o3
13
14
2
Bank
32
32 4
0
Stabilization
11
03
o2
36" RCP
345
345
345
20
3
Bank
10
10
OZ
Stabilization
3A
36" RCP
30
30
30
10'x 7' RCBC
331
331
331
46
4
Bank
30
30
OZ
Stabilization
10'x 6' RCBC
688
688
688
40
5
Bank
Stabilization
37
37
OZ
Fill
90
o3
90
5A
Bank
Stabilization
25
03
o2
6
Fill
60
o5
05
15
30" RCP
227
227
227
10
7
Bank
Stabilization
11
11
OZ
7A
15" RCP
57
0
57
54" RCP
412
412
412
20
8
Bank
13
13
OZ
Stabilization
10
Bank
16
3
0
2
0
Stabilization
Bridge,
Roadway
204
204
204
20
13
Bank
60
606
0
Stabilization
22
o3
O2
U -2524C & D Individual Permit Application

Permit
Site No.
Impact Type
Permanent
Impact
Length (ft)
Impacts
requiring
NCDWQ
mitigation (ft)
Impacts
requiring
reqg
USACE
mitigation (ft),
Temporary
Impact
Length (ft)
HC 1
Utilities
UT to Horsepen Creek
Perennial
393
40
HC2
Utilities
UT to Richland Creek
Perennial
919
20
HC3
Utilities
UT to Richland Creek
Perennial
1,488
20
HC4
Utilities
UT to Richland Creek
Perennial
35'
20
HC5
Utilities
Richland Creek
Perennial
1218
20
III
Utilities
UT to Richland Creek
Perennial
141'
40
Totals
3,120
2,826
2,782
358
Determined from USACE during verification site visit on July 25, 2012. `Mitigation for bank stabilization not
required by USACE. 3Mitigation not required by NCDWQ (less than 150 linear feet of steam) . 4Same stream as Site
1; different stream than stream with 11 feet of bank stabilization. 5Stream deemed unimportant by the USACE
requiring no mitigation by USACE and NCDWQ. 6Different stream than stream with 22 feet of bank stabilization.
Stream identified by Colonial Pipe Lines and not field verified by NCDOT, USACE, or NCDWQ since it was outside
of NCDOT project area limits during field verification process. Revised numbers are in bold and italicized.
U -2524D
Total preliminary surface water impacts for U -2524D are 4,604 linear feet of permanent stream
impacts and 80 linear feet of temporary stream impacts. Table 4 below lists the permit site
number, reference number, stream name, and amount of preliminary permanent and temporary
impacts.
Table 4. U -2524D Surface Water Descriptions and Impacts (Preliminary)
Permit
Site No.
Stream ID in
CP 4A Packet
Stream Name
Classification
Permanent
Impact(ft)
Temporary
Impact(ft)
1
16S
UT to Horsepen Creek
Perennial
393
10
2
17S
UT to Richland Creek
Perennial
919
10
3
17S
UT to Richland Creek
Perennial
1,488
10
4
17S
UT to Richland Creek
Perennial
35'
4
19S
Richland Creek
Perennial
1218
20
5
20S
UT to Richland Creek
Perennial
141'
10
6
21S
UT to Richland Creek
Perennial
311
10
7
Not Identified
UT to Richland Creek
Perennial
99'
10
Total Impacts
4,604
80
'Mitigation not required by NCDWQ (less than 150 linear feet of steam). NCDWQ mitigation for remaining streams
are assumed at 1:1 and USACE mitigation for all streams assumed at 2:1 until final field reverification is made.
U -2524C & D Individual Permit Application

• Impacts from steep cross pipe slopes (discharging into jurisdictional wetlands or streams)
have been reduced with the use of junction boxes, flat exit pipe slopes, and non - buried
upstream inverts;
• Five hazardous spill basins (one for stormwater treatment as well) will be utilized for
receiving waters classified as Critical Area;
• Pre - formed scour holes will be constructed at four locations: —L- 287 +50, : —L- 297 +80,
—L- 381 +05, and : —L- 382 +34;
• Elimination and/or reduction of permanent wetland impacts at Permit Sites 9, 11, 12, and 13
due to bridging;
• Elimination and/or reduction of permanent stream impacts at Permit Sites 9 and 13 due to
bridging;
• A 1.5:1 fill slope with rock plating will be used at Permit Site 8 to avoid stream impacts.
For additional avoidance /minimization for U -2524C see attached Stormwater Management Plan.
Despite these best efforts of NCDOT, permitted stream impacts (7,688 linear feet) for
U- 2524C/U -2524D did increase from the impacts reported in the FEIS (6,833 linear feet). This
increase is mainly due to new streams and additional jurisdictional stream sections to the FEIS
listed streams found within the project area that were not calculated in the FEIS. Overall, wetland
impacts significantly decreased from 16.6 acres reported in the FEIS to 6.12 acres recorded in this
permit application mainly due to bridging.
Compensatory Mitigation
U -2524C
Compensatory mitigation requirements for stream and wetland impacts are summarized in Table
6. The U -2524C section will permanently impact a total of 3,084 feet of warm water streams.
There are 242 feet of bank stabilization and 60 feet of an intermittent stream that do not require
mitigation by the USACE, resulting in 2,782 feet of stream impacts requiring USACE 2:1
mitigation. Mitigation requirements for U -2524C by NCDWQ is 2,826 feet at 1:1. The USACE
requirement exceeds the NCDWQ requirement and will be provided by NCEEP. NCEEP will
also provide mitigation for the 6.12 acres of permanent riparian wetland impacts resulting from
roadway fill, excavation, and mechanized clearing.
Table 6. U -2524C Required Compensatory Mitigation Summary (Final)
Revised numbers are italicized.
U -2524C & D Individual Permit Application
10
Stream Impacts in
Riparian Wetland Impacts
Len h ft
ac
Required USACE
2'782 @ 2.1
4.39 @ 2:1
Mitigation
1.73 @ 1:1
Total USACE
5,564
10.51
Mitigation
Required NCDWQ
2,826 at 1:1
6.12 @ 1:1
Mitigation
Total NCDWQ
2,826
6.12
Mitigation
Revised numbers are italicized.
U -2524C & D Individual Permit Application
10