20071470 Ver 2_Information Letter_20100511

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STATE OF NORTH CAROLINA
TURNPIKE AUTHORITY
BEVERLY E. PERDUE 1578 MAIL SERVICE CENTER, RALEIGH, N.C. 27699-1578 DAVID W. JOYNER
GOVERNOR EXECUTIVE DMR OR
May 10, 2010 n
US Army Corps of Engineers G? UG W 9J P
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Raleigh Regulatory Field Office
3331 Heritage Trade Drive, Suite 105 MAY Z 1 2010
Wake Forest, NC 27587
oE1m•vwTEeauunr
V&MAMS AND STORE IXER I M CH
Attn: Mr. Eric Alsmeyer
Project Manager
o-y- ? q l 0
Subject: Application for Modification to Section 404 Permit and Section 401 WQC for
Sections A, B and C on Western Wake Freeway from NC 55 at SR 1172 (Old
Smithfield Road) to NC 5S near SR 1630 (Alston Avenue), Wake County,
Federal Aid No. BRSTP-OOOS(491), State Project No. 6.408006T, Division 5,
STIP R-2635, WBS Element 35520.13A1.
USACE Permit Action ID No. SAW-2007-02903-292, issued April 22, 2008.
NCDWQ Major 401 WQC Project No. 20071470 ver. 1, issued March 17,
2008.
The North Carolina Turnpike Authority (NCTA) is constructing a 12.6-mile long, new
location roadway (Western Wake Freeway) in Wake County, North Carolina. The NCTA
submitted an Individual Section 404 (of the Clean Water Act) Permit Application to the
U.S. Army Corps of Engineers (USACE) for the subject project on August 27, 2007. On
April 22, 2008, the Section 404 Permit was issued by the USACE (Action ID No. SAW-
2007-02903-292). The Section 401 Water Quality Certification (WQC) was issued by the
North Carolina Division of Water Quality (NCDWQ) on March 17, 2008 (NCDWQ Project
No. 2007-71470, ver. 1).
The NCTA requested a permit modification in April 2010 under two separate submittals
- one submittal included only Section C and the other submittal included both Section A
and Section B. Since the submittal of this information, it has been noted that the impact
data in the cover letters of the permit modification requests is inconsistent with the
impact data in the permit summary sheets. The tables in the cover letters have been
updated so that they correspond with the permit summary sheet totals for each section
of the project. This letter transmits the corrected data.
NORTII CAROLINA TURNPIKE AUTHORITY
TELEPHONE: [phone] FAX: [phone]
Additionally, for information purposes only, we are providing a permit drawing that
notes the location change of a ditch. A ditch has been added to the drainage plans from
station 589+50 to 593+50 (left). This change in the location of the drainage ditch has no
additional impacts to our permit modification request.
To assist you in locating the corrected data, updated tables have been included with
values that have changed noted with both italics and underline.
Section C information changes
It has been noted that project impacts in Table 2 from the Section C permit modification
letter were incorrect. This affected Tables 1 and 2. Here is a brief summary of the
changes in Tables 1 and 2:
• In Table 1, the numbers for "Modified Permanent Wetland Impacts" and
"Change in Permanent Wetland Impacts for Wetlands" have been changed;
• In Table 2, data from the permit summary sheet for Site 13 and the
"(Modification) Permanent Impacts to Wetlands" was incorrectly transferred to
the cover letter from the Section C permit summary sheet. The total for
"(Modification) Permanent Impacts to Wetlands" decreased for this site along
with the "Change in Permanent Wetland Impacts" for this site;
• Site 14 and the wetland impacts from Mechanized Clearing were not included in
Table 2. This information was included in the permit summary sheet for the
modification request. This information has now been added to Table 2; and,
• The total columns for "(Modification) Permanent Impacts to Wetlands" and
"Change in Permanent Wetland Impacts" were updated to reflect the noted
changes in Site 13 and 14.
The updated Tables 1 and 2 from the Section C permit modification letter are provided
below.
Table 1. Overall Impact Changes to Jurisdictional Areas in Section C
Original Permanent Wetland Impacts 11.26 acres
Modified Permanent Wetland Impacts 11.26 acres
Change in Permanent Impacts for Wetlands 0 acres
Original Permanent Stream Impact 6,931 feet
Modified Permanent Stream Impacts 6,997 feet
Change in Permanent Impacts for Streams 66 feet
2
Table 2. Permanent Wetland Impacts Comparison - Original Permit Application versus
Proposed Modification Request Impacts for Section C

Site
No.

Section C
Reference (Original)
Permanent
Impacts to
Wetlands (Modification)
Permanent
Impacts to
Wetlands Change in
Permanent
Wetland
Impacts
1 C1 0.77 0.77 0.00
3 C1 1.51 1.38 -0.13
4 C1 0.13 0.13 0.00
5 C1 0.06 0.06 0.00
6 C1 0.82 0.82 0.00
7 C1 0.23 0.15 -0.08
8 C1 0.35 0.29 -0.06
10 C1 0.36 0.35 -0.01
12 C1 0.36 0.30 -0.06
13 C1 0.99 0.60 -0.39
14 C2 0 0.14 0.14
15 C2 0.22 0.20 -0.02
16 C2 0.50 0.49 -0.01
17 C2 1.60 2.19 0.59
21 C2 2.06 1.86 -0.20
25 C2 0.14 0.14 0.00
26 C2 0 0.01 0.01
27 C2 0.58 0.58 0.00
28 C2 0.58 0.58 0.00
31 C2 0 0.06 0.06
32 C2 0 0.16 0.16
Total 11.26 11.26 0.00
Section A information changes
The following tables related to Section A have been updated: Tables 12 and 13. Site 1 in
Section A was inadvertently included in the modification request as requiring mitigation
in Table 13. This impact does not require mitigation as it was not included in the original
permit application as requiring mitigation. This site has been removed from Table 13,
and this removal also affects Table 12.
Additionally, Site 2 was inadvertently not included in Table 13 for the modification
request. This impact does require mitigation as it was included in the original permit
application as requiring mitigation. Therefore, this change affects Tables 12 and 13 in the
Section A and B permit modification request.
3
Table 12. Comparing Original Stream Impacts vs Modification Stream Impacts requiring
mitigation in HUC 03030004
Original Impacts
Requiring Mitigation Modification Impacts
Requiring Mitigation Change in
Impact
Section A 11305 11385 80
Section B 3,844 3,853 9
Total 5,149 55238 89
Note: This table has moved impacts from Site 11 and 12 in Section A of the original permit application to Section B
since the start of the roadway plans for Section B was adjusted to include these sites. These sites are now identified
as Sites 11A and 12A in Section B.
Table 13. Comparing Original Stream Impacts vs Modification Stream Impacts in Section A
requiring mitigation in HUC 03030004
Site
No. Original Impacts
Requiring Mitigation (ft) Modification Impacts
Requiring Mitigation (ft) Change in
Impacts (ft)
2 305 285 -20
5 103 32 -71
6 447 513 66
7 450 555 105
Total 11305 11385 80
Section B information changes
The following tables associated with Section B have been updated: Tables 2, 4, 5, 9, and
10. A rounding error was noted for the total, overall impacts in HU 03030004 in the
cover letter for the permit modification request. The permit summary spreadsheets do
not use significant digits to the hundredths as reported in the cover letter. The
adjustment was made such that Tables 2 and 4 in the cover letter correspond to the
permit summary sheet totals. The overall wetland impacts were increased by 0.01 to
4.06 total permanent wetland impacts in Section B, HUC 03030004. This accounts for
the rounding that occurs in the permit summary sheet calculations.
Table 2. Overall Imoact Chanees to Jurisdictional Areas in Section B
Original Permanent Wetland Impact 7.11 acres
Modified Permanent Wetland Impacts 6.58 acres
Change in Permanent Impacts for Wetlands -0.53 acres
Original Permanent Stream Impact 6,157 feet
Modified Permanent Stream Impacts 6,836 feet
Change in Permanent Impacts for Streams 679 feet
Note: for comparison sake, impacts from the original application at Site 11 and 12 for Section A have been moved to Section B.
These sites have been re-identified as Site 11 A and 12 A in Section B.
4
Table 4. Permanent Wetland Impacts Comparison - Original Permit Application versus
Proposed Modification Request Impacts -Section B for HUC 03030004.

Site
No. (Original)
Permanent
Impacts to
Wetlands (AC) (Modification)
Permanent
Impacts to
Wetlands (AC) Change in
Permanent
Wetland
Impacts (AC)
1 0.53 0.51 -0.02
2 0.03 0.03 0.00
4 1.02 1.02 0.00
5 2.70 1.71 -0.99
7A 0.00 0.20 0.20
9 0.26 0.24 -0.02
11 0.12 0.09 -0.03
31 0.10 0.19 0.09
32 0.03 0.01 -0.02
33 0.03 0.05 0.02
34 0.05 0.00 -0.05
Total 4.87 4.06- -0.81
Note: * notes that the column entitled '(Modification) Permanent Impacts to Wetlands' total matches numbers from
the permit summary sheet, and it was 0.01 acre greater than when the numbers in the column are totaled.
Drilled shaft impacts were not included in Table 5 for Sites 27 and 28 in HUC 03030002.
This information was presented in the permit summary sheet, but it was not included in
Table 5. This increased overall wetland impacts by 0.05 acre. An updated Table 5 is
provided.
Table S. Permanent Wetland Impacts Comparison - Original Permit Application versus
Proposed Modification Request Impacts - Section B in HUC 03030002

Site
No. (Original)
Permanent
Impacts to
Wetlands (AC) (Modification)
Permanent
Impacts to
Wetlands (AC) Change in
Permanent
Wetland
Impacts (AC)
17 0.04 0.05 0.01
18 0.06 0.04 -0.02
19 1.23 1.22 -0.01
20 0.11 0.11 0
21 0.55 0.8 0.25
24 0.06 0.06 0
25 0.01 0.01 0
27 0 0.02 0.02
28 0 0.03 0.03
29 0.18 0.18 0
Total 2.24 2.52 0.28
5
The original permit required mitigation for 2.24 acres of wetland and the modification
request impacts for 2.52 acres of wetlands, an increase of 0.28 of wetland impacts.
Based on the changes noted previously, Tables 9 and 10 have been updated accordingly.
These tables are presented below.
Table 9. Comparing Original Wetland Impacts vs Modification Wetland Impacts
requiring mitieation in HUC 03030004
Original Impacts
Requiring Mitigation Modification Impacts
Requiring Mitigation
Change in Impact
Section A 1.77 1.18 -0.59
Section B 4.87 4.06 -0.81
Total 6.64 5.24 -1.40
Table 10. Comparing Original Wetland Impacts vs Modification Wetland Impacts in
Section B and in HUC 03030004

Site
No. (Original)
Permanent
Impacts to
Wetlands (AC) (Modification)
Permanent
Impacts to
Wetlands (AC) Change in
Permanent
Wetland
Impacts (AC)
1 0.53 0.51 -0.02
2 0.03 0.03 0.00
4 1.02 1.02 0.00
5 2.70 1.71 -0.99
7A 0.00 0.20 0.20
9 0.26 0.24 -0.02
11 0.12 0.09 -0.03
31 0.10 0.19 0.09
32 0.03 0.01 -0.02
33 0.03 0.05 0.02
34 0.05 0.00 -0.05
Total 4.87 4.06 0.81
Note: ' notes that the column entitled '(Modification) Permanent Impacts to Wetlands' total matches numbers from
the permit summary sheet, and it was 0.01 acre greater than when the numbers in the column are totaled.
The following paragraph, located on Page 10 of the Section A and B permit modification
request, has also been updated:
For wetland impacts within HUC 03030002 (i.e., those impacts within Section B), there is
a need of additional wetland mitigation. The original permit required mitigation for 2.24
acres of wetland and the modification request impacts for 2.52 acres of wetlands, an
increase of 0.28 of wetland impacts.
6
Overall Proiect Mitigation Requirements
The following tables summarize the mitigation requirements for Western Wake Freeway
for each section of the project per impacts in the two hydrologic units that the project
crosses.
Table A. Change in Wetland Mitigation Requirements (acres) for HU 03030002

Section Original Wetland
Impacts Requiring Mitigation Modified Wetland
Impacts Requiring Mitigation Change in Mitigation
Requirements
C 11.26 11.26 0
B 2.24 2.52 0.28
Totals 13.50 13.78 0.28
Note: the original impacts are from the original permit application submitted August 27, 2007.
Based on these wetland impacts, the total amount of wetland mitigation needed in HU
03030002 is 27.56.
Table B. Change in Stream Mitigation Requirements (feet) for HU 03030002

Section Original Stream
Impacts Requiring Mitigation Modified Stream
Impacts Requiring Mitigation Change in Mitigation
Requirements
C 4,988 5,177 189
B 562 1,308 746
Total 5,550 6,485 935
Note: the original impacts are from the original permit application submitted August 27, 2007.
Based on these stream impacts, the total amount of stream mitigation needed in HU 03030002
is 12,970 feet.
Table C. Change in Wetland Mitigation Requirements (acres) for HU 03030004

Section Original Wetland
Impacts Requiring Mitigation Modified Wetland
Impacts Requiring Mitigation Change in Mitigation
Requirements
A 1.77 1.18 -0.59
B 4.87 4.06 -0.81
Total 6.64 5.24 -1.40
Note: the original impacts are from the original permit application submitted August 27, 2007.
Based on these wetland impacts, the total amount of wetland mitigation needed in HU
03030004 is 10.48.
Table D. Change in Stream Mitigation Requirements (feet) for HU 03030004

Section Original Stream
Impacts Requiring Mitigation Modified Stream
Impacts Requiring Mitigation Change in Mitigation
Requirements
A 2,118 1,385 -733
B 3,031 3,853 822
Total 5,149 5,238 89
(vote: the original impacts are trom the original permit application submitted August 27, 2007, and for the permit modification,
Sites 11A and 12A were moved to Section B from Section A.
Based on these stream impacts, the total amount of stream mitigation needed in HU 03030004
is 10,476 feet.
REGULATORY APPROVALS
We ask that you update the previously submitted modification request information
accordingly. We have received the EEP mitigation acceptance letter noting the new
wetland and stream mitigation needs. A copy of this acceptance letter is attached.
8
Thank you for your assistance with this project. If you have any questions or need any
additional information about this project, please contact Phillip Todd of SEPI Engineering
& Construction at [phone] or [e-mail] (primary contact) or
Jennifer Harris, P.E. of NCTA at [phone] or [e-mail].
Sincerely,

Steve DeWitt, P.E., Chief Engineer
North Carolina Turnpike Authority
Attachments:
• Updated Permit Drawings
• EEP Mitigation Acceptance Letter (May 4, 2010)
cc:
Mr. Shannon Sweitzer, P.E., NCTA
Ms. Jennifer Harris, P.E., NCTA
Mr, Brian Wrenn, NCDWQ (2 Copies)
Mr. Travis Wilson, NCWRC
Mr. Chris Militscher, USEPA
Mr. Clarence W. Coleman, P.E., FHWA
Mr. Gary Jordan, USFWS
Ms. Anne Deaton, NCDMF
Mr. J. Wally Bowman, P.E., NCDOT Division 5
Mr. Chris Murray, NCDOT Division 5
Mr. Phil Harris, P.E., NCDOT Natural Environment Unit
Mr. Scott McLendon, USACE, Wilmington
Ms. Beth Harmon, EEP
9
rblY
PROGRAM
May 4, 2010
Mr. Steve DeWitt, P.E.
Chief Engineer
North Carolina Turnpike Authority
5400 Glenwood Avenue, Suite 400
Raleigh, North Carolina 27612
Dear Mr. DeWitt:
Subject: EEP Mitigation Acceptance Letter:
R-2635, Western Wake Expressway, Wake County; Cape Fear River Basin
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 unavoidable impact associated with the above referenced
project. Based on the information supplied by you on May 3, 2010, the impacts are located in CU 03030002 and
03030004 of the Cape Fear River Basin in the Central Piedmont (CP) Eco-Region, and are as follows:
IMPACTS/ MITIGATION UNITS Stream Wetlands Buffer
Cold Cool Warm RW NRW CM Zone 1 Zone 2
Impacts - Cape Fear 03030002 CP 6,485 13.78
Mitigation Units Cape Fear 03030002 u to 2:1 12,970 27.56

Impacts - Cape Fear 03030004 CP 5,238 5.24
Mitigation Units-Cape Fear 03030004 u to 2:1 10,476 10.48

Impacts -Total Project 11,723 19.02
Mitigation Units- Total Project (up to 2:1) 23,446 38.04
This mitigation acceptance letter replaces the mitigation acceptance letter issued on August 1, 2008. EEP
commits to implementing sufficient compensatory stream and riparian wetland mitigation credits to offset the final
permitted impacts associated with this project by the end of the MOA Year in which this project is permitted, in
accordance with Section X of the Amendment No. 2 to the Memorandum of Agreement between the North Carolina
Department of Environment and Natural Resources, the North Carolina Department of Transportation, and the U. S. Army
Corps of Engineers, fully executed on Much 8, 2007. 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 919-715-1929.
Sincerely, V
Willia D. ilmore,P.E.
EEP Dir or
cc: Mr. Eric Alsmeyer, USACE - Raleigh Regulatory Field Office
Mr. Brian Wrenn, Division of Water Quality, Wetlands/401 Unit
Mr. Shannon Switzer, P.E., NCTA
Ms. Jennifer Harris, P.E., NCTA
Mr. Peter Graf, P.E., LPA Group
Mr. Phillip Todd, SEPI Engineering
Ms. Linda Fitzpatrick, NCDOT - PDEA
Resto?ut9..: Ekha"... nvrote" Oar State,
ern
MENR
North Carolina Ecosystem Enhancement Program, 1652 Mail Service Center, Raleigh, NC 27699-1652 / 919-715-0476 / www.nceep.net

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