20030845 Ver 1_Complete File_20031219

F
Resolution of Agreement by Cabarrus County with
The North Carolina Division of Water Quality for the
Westside Bypass Extension Project
R-2246C
DEC 1 9 2003
WATER QUALRY SECTION
WHEREAS Cabarrus County supports the development and improvement of
existing and proposed roadways serving Cabarrus County and Concord; and
WHEREAS Cabarrus County recognizes the importance of the Westside Bypass
(TIP R-2246C) for the transportation network serving Cabarrus County and
Concord; and
WHEREAS the North Carolina' Division of Water Quality, as part of the
environmental approvals for Westside Bypass is required to issue a 401 Water
Quality Certification; and
WHEREAS the North Carolina Division of Water Quality has indicated that local
responsible governments will need to indicate their willingness to work with the
North Carolina Division of Water Quality-to- develop and adopt additional water
quality protection measures and, in,_turnf .will be able-to issue the 401 Water
Quality Certification; and
WHEREAS the City of Concord has submitted a NPDES Phase II Stormwater
application to the Division of Water Quality in March 2003 based on the
standards of the Interim Stormwater Rules approved by the Environmental
Management Commission, and Cabarrus County is working cooperatively with
the City of Concord on stormwater; and
WHERAS the majority of the Westside Bypass Extension Project (TIP R-2246C) is
Jth ^ the corporate !imits of the City of Concord;
NOW THEREFORE BE IT RESOLVED that Cabarrus County hereby agrees to work
with the North Carolina Division of Water Quality and the City of Concord to
develop and implement mechanisms within the impact area of those projects
that include the proposed Phase II stormwater management plan contained in
the NPDES permit application and address, to the satisfaction of the Director of
the North Carolina Division of Water Quality, the : following items that are
contained within the proposed Phase II stormwater management plan:
I. Stream Buffers on intermittent and perennial streams and ponds;
II. On-Site Stormwater Management from new development;
Resolution No. 2003- ,S$
WETLANDS 1401 GIRMi
Cabarrus County agrees to work with the North Carolina Division of Water
Quality and the City of Concord to properly adopt these mechanisms in
accordance with the implementation schedule established for Concord which is
contained in the NPDES permit approved by the Director of the North Carolina
Division of Water Quality.
Cabarrus County understands that in return the North Carolina Division of Water
Quality agrees that cumulative impact issues concerning these projects are
adequately addressed and that the North Carolina Division of Water Quality will
then issue the required 401 Water Quality Certifications for the Westside Bypass
Extension within three days of the signing of this agreement.
This the 15th day of December, 2003.
Board of Commissioners
Cabarrus County
North Carolina
Y. .c?o.....a
Robe M. Freeman, Chairman
Attest: J .
Frankie F. Bonds, County Clerk
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a city meeting the fitune.. .
December 15, 2003
Mr. John Dorney
NC DENR/Division of Water Quality
Wetlands Unit
1650 Mail Service Center
Raleigh, NC 27699-1650
VVETLA,MUS / 401 GRCUp
DEC 1 9 2003
WATER QUALITY SECT161
Subject: Resolution of Agreement for Westside Bypass Extension Project R-2246C
Dear Mr. Dorney;
Enclosed is one (1) copy of the resolution approved by City Council at their December
Council meeting. We look forward to meeting with you in the near future to discuss the
buffer requirements. If you have any question, please do not hesitate to call me at 704-
920-5370.
Sincerely,
THE CITY OF CONCORD
H. Allen Scott, Jr. P.E.
Environmental Services Director
Cc: Brian Hiatt
Jim Greene
Environmental Services
AIBadM Brown Op?ons Cbrnor
CiryofConcord 850 Wanes C. Cokmm Blvd P.O. Box 308 Concord, North Carolina 28026
[phone] Fax [phone] TDD 1-800-735-8262 zv wamodmur

Resolution of Agreement by the Concord City Council with
The North Carolina Division of Water Quality for the
Westside Bypass Extension Project
R- 2246C
WHEREAS the,City of Concord supports the development and improvement of
existing and proposed roadways serving Concord and Cabarrus County;
WHEREAS the City of Concord recognizes the importance of the Westside
Bypass (TIP R-2246C) for the transportation network serving Concord and
Cabarrus County;
WHEREAS the North Carolina Division of Water Quality, as part of the
environmental approvals for Westside Bypass is required to issue a 401 Water
Quality Certification;
WHEREAS the North Carolina Division of Water Quality has indicated that local
responsible governments will need to indicate their willingness to work with the
North Carolina Division of Water Quality to develop and adopt additional water
quality protection measures and, in turn, will be able to issue the 401 Water.
Quality Certification;
WHEREAS the City of Concord has submitted a NPDES Phase II Stormwater
application to the Division of Water Quality in March 2003 based on the
standards of the Interim Stormwater Rules approved by the Environmental
Management Commission;
NOW THEREFORE BE IT RESOLVED that the City of Concord hereby agrees
to work with the North Carolina Division of Water Quality to develop and
implement mechanisms within the impact area of those projects that include the
proposed Phase II stormwater management plan contained in the NPDES permit
application and address, to the satisfaction of the Director of the North Carolina
Division of Water Quality, the following items that are contained within the
proposed Phase II stormwater management plan:
1. Stream Buffers on intermittent and perennial streams and ponds;
II. On-site Stormwater Management from new development;
The City of Concord agrees to work with the North Carolina Division of Water
Quality to properly adopt these mechanisms in accordance with the
implementation schedule contained in the NPDES permit approved by the
Director of the North Carolina Division of Water Quality.
The City of Concord understands that in return the North Carolina Division of
Water Quality agrees that cumulative impact issues concerning these projects
are adequately addressed and that the North Carolina Division of Water Quality
will then issue the required 401 Water Quality Certifications for the Westside
Bypass Extension within three days of the signing of this agreement.
This the 11th day of December 2003.
p ?r
Attest:
Vickie C. Weant, City Clerk
CITY COUNCIL
CITY OF CONCORD
Nr1RTt4 rAPr)l In10
FAX NO. 7649202019 Apr. 23 1999 06:59PM P1
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FAX NO. : 7049202019 Apr. 23 1999 06:59PM P2
Resolution No. 2003- ,? $
Resolution of Agreement by Cabarrus County with
The North Carolina Division of Water Quality for the
Westside Bypass Extension Project
R-2246C
WHEREAS Cabarrus County supports the development and improvement of
existing and proposed roadways serving Cabarrus County and Concord; and
WHEREAS Cabarrus County recognizes the importance of the Westside Bypass
(TIP R-22460) for the transportation network serving Cabarrus County and
Concord; and
WHEREAS the North Carolina' Division of Water Quality, as part of the
environmental approvals for Westside Bypass is required to issue a 40t Water
Quality Certification; and
WHEREAS the North Carolina Division of Water Quality has indicated that local
responsible governments will need to indicate their willingness to work with the
North Carolina Division of Water Quality to develop and adopt additional water
quality protection measures and, in turn, will be able to issue the 401 Water
Quality Certification; and
the City of Concord on Stormwater; and
WHEREAS the City of Concord has submitted a NPDES Phase If Stormwater
application to the Division of Water Quality in March 2003 based on the
standards of the Interim Stormwater Rules approved by the Environmental
Management Commission, and Cabarrus County is working cooperatively with
WHERAS the majority of the Westside Bypass Extension Project (TIP R-22460) is
within the corporate limits of the City of Concord;
NOW THEREFORE BE IT RESOLVED that Cabarrus County hereby agrees to work
with the North Carolina Division of Water Quality and the City of Concord to
develop and implement mechanisms within the impact area of those projects
that include the proposed Phase II stormwater management plan contained in
the NPDES permit application and address, to the satisfaction of the Director of
the North Carolina Division of Water Quality, the following items that are
contained within the proposed Phase II stormwater management plan:
1. Stream Buffers on intermittent and perennial streams and ponds;
II. On-Site Stormwater Management from new development;
tROM :r FAX NO. : 7049202019 Apr. 23 1999 07:00PM P3
Cabarrus County agrees to work with the North Carolina Division of Water
Quality and the City of Concord to properly adopt these mechanisms in
accordance with the implementation schedule established for Concord which is
contained in the NPDES permit approved by the Directo''r of the North Carolina
Division of Water Quality.
Cabarrus County understands that in return the North Carolina Division of Water
Quality agrees that cumulative iimpact issues concerning these projects are
adequately addressed and that the North Carolina Division of Water Quality will
then issue the required 401 Water Quality Certifications for the Westside Bypass
Extension within three days of the signing of this agreement.
This the 15th day of December, 2003.
Board of Commissioners
Cabarrus County
North Carolina
Y. -.
Robe M. Freeman, Chairman
Attest: L?? •
Frankie F. Bonds, County Clerk
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A Michael F. Easley, Governor
?qQ
G William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
y Division of Water Quality
e .?.
%N Coleen H. Sullins, Deputy Director
Division of Water Qualit
W y
Proposed Widening of SR 1430 (George W
December 19, 2003
Cabarrus County
DWQ Project No. 030845
TIP Project No. R-2246C
Liles Parkway)/Westside Bypass Extension
APPROVAL of 401 Water Quality Certification with Additional Conditions
Dr. Gregory J. Thorpe, Ph.D., Manager
NCDOT Project Development & Environmental Analysis
1548 Mail Service Center
Raleigh, NC 27699-1548
Dear Dr. Thorpe:
You have our approval, in accordance with the attached conditions and those listed below, incur the
following impacts:
¦ 0.24 acres of wetlands
¦ 359.2 linear feet of stream (3 unnamed tributaries to Coddle Creek)
These impacts are necessary to widen SR 1430 (George W. Liles Parkway) as part of the Kannapolis
Westside Bypass in Cabarrus County. This project involves the Westside Bypass Extension from SR
1431 (Weddington Road) to SR 1555 (Grand Canyon Road). The project should be constructed in
accordance with your application dated July 18, 2003.
After reviewing your application, we have decided that these impacts are covered by General Water
Quality Certification Nos. 3366 and 3404 corresponding to U.S. Army Corps of Engineers Nationwide
Permit Numbers 33 and 14. In addition, you should acquire .and comply with any other federal, state or
local permits before you proceed with your project including (but not limited to) Sediment and Erosion
Control, and Non-Discharge as well as the Water Supply Watershed regulations. This approval will
expire with the accompanying 404 permit unless otherwise specified in the Water Quality Certification.
This approval is only valid for the purpose and design that you described in your application except as
modified below. If you change your project, you must notify us, in writing, and send us a new
application. If the property is sold, the new owner must be given a copy of this Certification and approval
letter and is thereby responsible for complying with all conditions. If total wetland fills for this project
(now or in the future) exceed one acre, or if stream impacts exceed 150 linear feet, compensatory
mitigation may be required as described in 15A NCAC 211.0506 (h) (6) and (7). For this approval to be
valid, you must follow the conditions listed in the attached certification and any additional conditions
listed below.
1. Construction shall be performed so that no violations of state water quality standards, statutes, or
rules occur.
¦ Erosion and sediment control practices must be in full compliance with all specifications
governing the proper design, installation and operation and maintenance of such Best
Management Practices in order to protect surface water quality standards.
¦ The erosion and sediment control measures for this project must equal or exceed the proper
design, installation, operation and maintenance outlined in the most recent version of the
North Carolina Sediment and Erosion Control Planning and Design Manual. These devices
shall be maintained on all construction sites, borrow sites, and waste pile (spoil) projects,
North Carolina Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
919-733-1786 (phone), 919-733-6893 (fax), hftp://h2o.enr.state.nc.us/ncwetlands/

Dr. Gregory J. Thorpe
TIP Project No. R-2246C
DWQ # 030845
including contractor-owned or leased borrow pits associated with the projects included under
this Certification.
For borrow pit sites, the erosion and sediment control measures must equal or exceed the
proper design, installation, operation and maintenance outlined in the most recent version of
the North Carolina Surface Mining Manual.
Any reclamation measures and implementation must comply with the reclamation in
accordance with the requirements of the Sedimentation Pollution Control Act.
For the entire R-2246C project corridor (from SR 1431 (Weddington Road) to SR 1555
(Grand Canyon Road), NCDOT shall strictly adhere to North Carolina regulations entitled,
Design Standards in Sensitive Watersheds (15A NCAC 4B .0124 (b) -(e) only). NCDOT
will not be required to comply with 15A NCAC 2B .0124(a), which restricts clearing to 20
acres at a time. Temporary or permanent herbaceous vegetation should be planted on all bare
soil within 10 days of ground-disturbing activities to provide long-term erosion control. Tall
fescue shall not be used in riparian areas per NC Wildlife Resource Commission
recommendations. Erosion control matting should be used in riparian areas instead of straw
mulch.
2. Sediment and erosion control measures shall not be placed in wetlands or waters to the maximum
extent practicable. If placement of sediment and erosion control devices in wetlands and waters .
is unavoidable, they shall be removed and the natural grade restored within 30 days after the
Division of Land Resources has released the project.
3. NCDOT and its contractors and/or agents shall not excavate, fill, or perform mechanized land
clearing at any time in the construction or maintenance of this project within waters and/or
wetlands, except as authorized by this Certification, or any modification to this Certification (e.g.,
no work shall occur outside of the footprint of the plans provided). In addition, there shallbe no
excavation from or waste disposal into jurisdictional wetlands or waters associated with this
Certification without appropriate modification. If this occurs, compensatory mitigation will be
required since it is a direct impact from road construction activities.
4. Stormwater runoff shall be pre-treated by any best engineering practices appropriate to the site
topography. Removing or mowing of existing wooded stream buffers should be minimized in
order to allow them to provide diffuse stormwater flow, sediment removal and streambank
stabilization.
5. Live or fresh concrete shall not come into contact with waters of the state until the concrete has
hardened.
6. Discharging hydroseeding mixtures and washing out hydroseeders and other equipment in or
within 100 feet of surface waters is strictly prohibited.
7. The natural dimension, pattern and profile of the stream above and below the crossing should not
be modified by widening the stream channel or changing the depth of the stream.
8. Placement of culverts and other structures in waters, streams, and wetlands shall be placed below
the elevation of the streambed to allow low flow passage of water and aquatic life unless it can be
shown to DWQ that providing passage would be impractical. Design and placement of culverts
and other structures including temporary erosion control measures shall not be conducted in a
manner that may result in dis-equilibrium of wetlands or streambeds or banks, adjacent to or
upstream and down stream of the above structures. The applicant is required to provide evidence
that the equilibrium shall be maintained if requested in writing by DWQ.

.1
2

J,- Dr. Gregory J. Thorpe
TIP Project No. R-2246C
DWQ # 030845
9. Riprap shall not be placed in the stream bottom.
10. Riprap shall not interfere with aquatic life passage during low flow conditions.
11. Heavy equipment should be operated from the bank rather than in the stream channel unless
demonstrated by the applicant or its authorized agent to be unfeasible. All mechanized
equipment operated near surface waters should be inspected and maintained regularly to prevent
contamination of stream waters from fuels, lubricants, hydraulic fluids or other toxic substances.
12. Compensatory mitigation shall be the same as that approved by the US Army Corps of Engineers
as long as the mitigation required equals a ratio of 1:1 restoration or creation of lost wetland acres
as described in 15A NCAC 2H.0506 (h)(6). NC Ecological Enhancement Program (EEP) has
agreed to provide all of the compensatory mitigation for these impacts. In accordance with 15A
NCAC 2R.0500, this contribution will satisfy NC Division of Water Quality's compensatory
mitigation requirements under 15A NCAC 2H.0506(h). Until the EEP receives and clears your
payment, wetland fill shall not occur. The payment to EEP shall be sent within two (2) months of
issuance of the §404 permit.
13. Riparian vegetation, using native trees and shrubs, must be re-established within the construction
limits of the project by the end of the growing season following completion of construction to
reestablish the riparian zone and to provide long-term erosion control.
14. Based on the findings of the Indirect and Cumulative Analysis Nutrient Study Quantitative
Assessment of Sediment and Nutrients for Kannapolis Westside Bypass (R-2246) (September
2003) prepared by Buck Engineering, the anticipated cumulative impacts from the above-
referenced project shall be addressed via written agreements between NC Division of Water
Quality, City of Concord (dated December 11, 2003) and Cabarrus County (dated December 15,
2003) concerning protected stream buffers and on-site stormwater management. NCDOT shall
assist in the development and implementation of these measures as appropriate.
In order to address the cumulative impacts of induced development on streambank stability,
NCDOT shall fund the development of a local watershed plan to be performed by WRP/EEP to
identify stream restoration of unstable streams.
15. Upon completion of the project, the NCDOT shall complete and return the enclosed
"Certificate of Completion" form to notify NCDWQ when all work included in the
§401 Certification has been completed. The responsible party shall complete the
attached form and return it to the 40I/Wetlands Unit of the NC Division of Water
Quality upon completion of the project.
16. NCDOT and its authorized agents shall conduct its activities in a manner consistent with State
water quality standards (including any requirements resulting from compliance with §303(d) of
the Clean Water Act) and any other appropriate requirements of State law and Federal law. If
DWQ determines that such standards or laws are not being met (including the failure to sustain a
designated or achieved use) or that State or federal law is being violated, or that further
conditions are necessary to assure compliance, DWQ may reevaluate and modify this certification
to include conditions appropriate to assure compliance with such standards and requirements in
accordance with 15A NCAC 2H.0507(d). Before modifying the certification, DWQ shall notify
NCDOT and the US Army Corps of Engineers, provide public notice in accordance with 15A
NCAC 2H.0503 and provide opportunity for public hearing in accordance with 15A NCAC
2H.0504. Any new or revised conditions shall be provided to NCDOT in writing, shall be
3
Dr. Gregory J. Thorpe
TIP Project No. R-2246C
DWO # 030845
provided to the United States Army Corps of Engineers for reference in any permit issued
pursuant to Section 404 of the Clean Water Act, and shall also become conditions of the 404
Permit for the project.
NCDOT shall require its contractors (and/or agents) to comply with all of the conditions of this
Certification, and shall provide each of its contractors (and/or agents) a copy of this Certification.
If you do not accept any of the conditions of this certification, you may ask for an adjudicatory hearing.
You must act within 60 days of the date that you receive this letter. To ask for a hearing, send a written
petition that conforms to Chapter 150B of the North Carolina General Statutes to the Office of
Administrative Hearings, 6714 Mail Service Center, Raleigh, N.C. 27699-6714. This certification and its
conditions are final and binding unless you ask for a hearing.
This letter completes the review of the Division of Water Quality under §401 of the Clean Water Act. If
you have any questions, please telephone Ms. Cynthia Van Der Wiele at 919.733.5715.
Attachment
Pc: Wilmington District Corps of Engineers
Steve Lund, USACE Asheville Field Office
NCDWQ Asheville Regional Office
Central Files
File Copy
H. Allen Scott, Jr.; Environmental Services Director; City of Concord; P.O. Box 308;
Concord, NC 28026
Frankie Bonds; County Clerk; Cabarrus County, P.O. Box 707; Concord, NC 28026

4
Sincerely,
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
fQ
r?.. Alan W. Klimek, P.E., Director
Division of Water Quality
t Coleen H. Sullins, Deputy Director
Division of Water Quality
Division of Water Quality
Department of Environmental and Natural Resources
Wetlands/401 Unit
Street Address: 2321 Crabtree Boulevard, Suite 250
Raleigh, NC 27604-2260
Mailing Address: 1650 Mail Service Center
Raleigh, NC 27699-1650
Contact Information: Phone #: [phone]
Fax #: [phone]
Fax To: 1.c?2 O?t??iV? Fax #: :7r,S• ISO
?
Company: -PD C-- A Date: 12- • (9 • °3
Number of pages including cover sheet:
Notes or special instructions:

?6 tYYCAA.

N. C. Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
[phone] (phone), 919-733-6893 (fax), (http:/lh2o.enr.state.nc.us/ncwetlands

OO WAT ?
HRQG
17
N
Alan W. Klimek, P.E., Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Divan of Water Quality
DWQ Project No. 030845
TIP Project No. R-2246C
Proposed Widening of SR 1430 (George W. Liles Parkway)/Westside Bypass Extension
APPROVAL of 401 Water Quality Certification with Additional Conditions rQ?
Dr. Gregory J. Thorpe, Ph.D., Manager 'r
NCDOT Project Development & Environmental Analysis C
1548 Mail Service Center
Raleigh, NC 27699-1548
Dear Dr. Thorpe:
You have our approval, in accordance with the attached conditions and those listed below, incur the
following impacts:
0.24 acres of wetlands
¦ 359.2 linear feet of stream (3 unnamed tributaries to Coddle Creek)
These impacts are necessary to widen SR 1430 (George W. Liles Parkway) as part of the Kannapolis
Westside Bypass in Cabarrus County. This project involves the Westside Bypass Extension from SR
1431 (Weddington Road) to SR 1555 (Grand Canyon Road). The project should be constructed in
accordance with your application dated July 18, 2003.
After reviewing your application, we have decided that these impacts are covered by General Water
Quality Certification Nos. 3366 and 3404 corresponding to U.S. Army Corps of Engineers Nationwide
Permit Numbers 33 and 14. In addition, you should acquire and comply with any other federal, state or
local permits before you proceed with your project including (but not limited to) Sediment and Erosion
Control, and Non-Discharge as well as the Water Supply Watershed regulations. This approval will
expire with the accompanying 404 permit unless otherwise specified in the Water Quality Certification.
This approval is only valid for the purpose and design that you described in your application except as
modified below. If you change your project, you must notify us, in writing, and send us a new
application. If the property is sold, the new owner must be given a copy of this Certification and approval
letter and is thereby responsible for complying with all conditions. If total wetland fills for this project
(now or in the future) exceed one acre, or if stream impacts exceed 150 linear feet, compensatory
mitigation may be required as described in 15A NCAC 2H.0506 (h) (6) and (7). For this approval to be
valid, you must follow the conditions listed in the attached certification and any additional conditions
listed below.
1. Construction shall be performed so that no violations of state water quality standards, statutes, or
rules occur.
¦ Erosion and sediment control practices must be in full compliance with all specifications
governing the proper design, installation and operation and maintenance of such Best
Management Practices in order to protect surface water quality standards.
¦ The erosion and sediment control measures for this project must equal or exceed the proper
design, installation, operation and maintenance outlined in the most recent version of the
North Carolina Sediment and Erosion Control Planning and Design Manual. These devices
shall be maintained on all construction sites, borrow sites, and waste pile (spoil) projects,
North Carolina Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
919-733-1786 (phone), 919-733-6893 (fax), hftp://h2o.enr.state.nc.us/ncwetlands/
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources

v g??
oAlfb
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--Va
including contractor-owned or leased borrow pits associated with t e projects included under
this Certification.
For borrow pit sites, the erosion and sediment control measures ust equal or exceed the
proper design, installation, operation and maintenance outlined n the most recent version of
the North Carolina Surface Mining Manual.
Any reclamation measures and implementation must comply ith the reclamation in
accordance with the requirements of the Sedimentation Pol tion Control Act.
NCDOT shall strictly adhere to North Carolina regulations entitled, Design Standards in
Sensitive Watersheds (15A NCAC 4B .0124 (b) -(e) only). NCDOT will not be required to
comply with 15A NCAC 2B .0124(a), which restricts clearing to 20 acres at a time.
Temporary or permanent herbaceous vegetation should be planted on all bare soil within 10
days of ground-disturbing activities to provide long-term erosion control. Tall fescue should
not be used in riparian areas per NC Wildlife Resource Commission recommendations.
Erosion control matting should be used in riparian areas instead of straw mulch.
.._
2. Sediment and erosion control measures shall not be placed in wetlands or waters to the maximum
iE extent practicable. If placement of sediment and erosion control devices in wetlands and waters
is unavoidable, they shall be removed and the natural grade restored within 30 days after the
Division of Land Resources has released the project.
3. NCDOT and its contractors and/or agents shall not excavate, fill, or perform mechanized land
clearing at any time in the construction or maintenance of this project within waters and/or
wetlands, except as authorized by this Certification, or any modification to this Certification (e.g.,
no work occurring outside of the footprint of the plans provided). In addition, there shall be no
excavation from or waste disposal into jurisdictional wetlands or waters associated with this
Certification without appropriate modification. If this occurs, compensatory mitigation will be
IfN required since it is a direct impact from road construction activities.
4. Stormwater shall be directed to flow as diffuse flow at non-erosive velocities across the stream
buffers using level spreaders, retention basins, pre-formed scour holes or other site-appropriate
devices. Removing or mowing of existing wooded stream buffers should be minimized in order
to allow them to provide diffuse stormwater flow, sediment removal and streambank stabilization.
5. Live or fresh concrete shall not come into contact with waters of the state until the concrete has
hardened.
6. Discharging hydroseeding mixtures and washing out hydroseeders and other equipment in or
adjacent to surface waters is strictly prohibited.
7. The natural dimension, pattern and profile of the stream above and below the crossing should not
be modified by widening the stream channel or changing the depth of the stream.
8. Placement of culverts and other structures in waters, streams, and wetlands shall be placed below
the elevation of the streambed to allow low flow passage of water and aquatic life unless it can be
shown to DWQ that providing passage would be impractical. Design and placement of culverts
and other structures including temporary erosion control measures shall not be conducted in a
manner that may result in dis-equilibrium of wetlands or streambeds or banks, adjacent to or
upstream and down stream of the above structures. The applicant is required to provide evidence
that the equilibrium shall be maintained if requested in writing by DWQ.
9. Riprap shall not be placed in the stream bottom.
10. Heavy equipment should be operated from the bank rather than in the stream channel unless
demonstrated by the applicant or its authorized agent to be unfeasible. All mechanized
equipment operated near surface waters should be inspected and maintained regularly to prevent
contamination of stream waters from fuels, lubricants, hydraulic fluids or other toxic substances.
11. Compensatory mitigation shall be the same as that approved by the US Army Corps of Engineers
as long as the mitigation required equals a ratio of 1:1 restoration or creation of lost wetland acres
as described in 15A NCAC 211.0506 (h)(6). NC Ecological Enhancement Program (EEP) has
agreed to provide all of the compensatory mitigation for these impacts. In accordance with 15A
NCAC 2R.0500, this contribution will satisfy NC Division of Water Quality's compensatory
mitigation requirements under 15A NCAC 2H.0506(h). Until the EEP receives and clears your
payment, wetland fill shall not occur. The payment to EEP shall be sent within two (2) months of
issuance of the §404 permit.
12. Riparian vegetation, using native trees and shrubs, must be re-established within the construction
limits of the project by the end of the growing season following completion of construction to
reestablish the riparian zone and to provide loneosion control. -?
-OA -
13. Based on the findings of the In rtCumulative Analysis Nutrie Lacts dy Quantitative
Assessment of Sediment and utrients for Kannapolis Westside Byp 2246) (September M?.
2003) prepared by Buck gineering, the anticipated cumulative i om the above-
referenced project shal e addressed via written agreements betw en ivision of Wate r
Quality, ? Qf 1£arnrapolis and Cabarrus County concerning se. These agreements
shall address the implementation of the following within the Coddle Creek Watershed below NC
73:
i c. Enhanced sedimen and e sion control best ma an ge,4i tt ctic" v
??,fe55 wig 6*f a local watershed plan to be performed by WRP/EEP to address stream
restoration of unstable streams.

C ,, ten mei t, irn?lemeuti g the efe ed e be in Ca ?eby
t ?gr 1, ' vo-r f c ?1 sur s s 'I t? OT
i
k k
0 41We w f cop
wa ate.
4
n _
C 14. Upon completion of the project, the NCDOT shall complete and return the enclosed
"Certificate of Completion" form to notify NCDWQ when all work included in the
j §401 Certification has been completed. The responsible party shall complete the
i attached form and return it to the 401/Wetlands Unit of the NC Division of Water

12 - Quality upon completion of the project.
15. NCDOT and its authorized agents shall conduct its activities in a manner consistent with State
water quality standards (including any requirements resulting from compliance with §303(d) of
the Clean Water Act) and any other appropriate requirements of State law and Federal law. If
DWQ determines that such standards or laws are not being met (including the failure to sustain a
designated or achieved use) or that State or federal law is being violated, or that further
conditions are necessary to assure compliance, DWQ may reevaluate and modify this certification
to include conditions appropriate to assure compliance with such standards and requirements in
accordance with 15A NCAC 2H.0507(d). Before modifying the certification, DWQ shall notify
NCDOT and the US Army Corps of Engineers, provide public notice in accordance with 15A
NCAC 2H.0503 and provide opportunity for public hearing in accordance with 15A NCAC
2H.0504. Any new or revised conditions shall be provided to NCDOT in writing, shall be
provided to the United States Army Corps of Engineers for reference in any permit issued
pursuant to Section 404 of the Clean Water Act, and shall also become conditions of the 404
Permit for the project.
NCDOT shall require its contractors (and/or agents) to comply with all of the conditions of this
Certification, and shall provide each of its contractors (and/or agents) a copy of this Certification.
If you do not accept any of the conditions of this certification, you may ask for an adjudicatory hearing.
You must act within 60 days of the date that you receive this letter. To ask for a hearing, send a written
petition that conforms to Chapter 150B of the North Carolina General Statutes to the Office of
Administrative Hearings, 6714 Mail Service Center, Raleigh, N.C. 27699-6714. This certification and its
conditions are final and binding unless you ask for a hearing.
This letter completes the review of the Division of Water Quality under §401 of the Clean Water Act. If
you have any questions, please telephone Ms. Cynthia Van Der Wiele at 919.733.5715.
Sincerely,
Alan W. Klimek, P.E.
Attachment
Pc: Wilmington District Corps of Engineers
Steve Lund, USACE Asheville Field Office
NCDWQ Asheville Regional Office
Central Files
File Copy
imap://john.dorney%40dwq.denr.nemail.net @ cros.ncmail.net:143/fe...
Subject: Re: Concord-Kannapolis Bypass (R-2246C) project and cumulative impacts
From: Cynthia Van Der Wiele <[e-mail]>
Date: Fri, 14 Nov 2003 16:21:21 -0500
To: John Dorney <[e-mail]>
Here's my draft 401. The condition addressing the ICI recommendations is #13. I've
got some of it in red (the part I think we need a deadline or something in hand, but
not sure what to write).
John Dorney wrote:
just finished the meeting with DOT and Buck Engineering staff regarding the
above-mentioned project. the conclusion was that the modeling did show a
significant potential for sediment impacts in the 303(d) listed stream (Coddle
Creek) downstream of NC 73 and therefore cumulative impacts will need to be
addressed in this impact area. the following work needs to be done quickly in
order to meet DOT's December Let List.
the solution is to 1) have protected wooded buffers (30 feet should be sufficient)
on all internittent and perennial streams, 2) require on-site stormwater management
for new development in order to control erosive velocities in stream channels and
pollutant delivery and 3) have DOT fund a local watershed plan which would target
appropriate stream mitigation sites for WRP, EEP, private banks and other entities.
The following folks need to do the following work in order to get this project in
the December Let List: the Corps of Engineers has issued the NAtionwide 14 Permit
for this project and this is the last project on DOT's priority list that DWQ has
not yet issued a 401 Certification for.
Buck Engineering -
Determine which municipalities will need to work with DWQ to improve
ordinances (working with Steve Zoufaly since he has had contact with local water
supply watershed folks)
Determine the general level of willingness to address the above listed items
(1 and 2).
DWQ -
Cynthia - prepare draft of 401 including our (now standard!) language for
working with the local governments regarding cumulative impact and a condition
requiring DOT to fund a local watershed plan.
John - talk to Coleen on Friday to determine what level of written, local
committment is needed for this project (City Council, Mayor, or City Manager).
DOT -
Confirm the committment to fund a local watershed plan and ensure that
EEP/WRP is willing to do this plan.
Once Buck Engineering has determined the level of willingness of the
local officials to work with DWQ on this plan, then make formal contact with
the appropriate local officials.
If i have left anything out, please feel free to correct/elaborate. thankx
1 of 1 11/15/03 10:14 AM
imap://cynthia.vanderwiele%40dwq.denr.nemail.net@c...
Subject: Concord-Kannapolis Bypass (R-2246C) project and cumulative impacts
From: John Dorney <john.dorney @ ncmail. net>
Date: Tue, 11 Nov 2003 10:31:47 -0500
To: Cynthia Van Der Wiele <cynthia.vanderwiele @ ncmail.net>, Alice Gordon
<[e-mail]>, "[e-mail]" <john.dorney @ ncmail. net>, Greg
Thorpe <gthorpe @dot. state. nc. us>
CC: Coleen Sullins <[e-mail]>
just finished the meeting with DOT and Buck Engineering staff regarding the
above-mentioned project. the conclusion was that the modeling did show a significant
potential for sediment impacts in the 303(d) listed stream (Coddle Creek) downstream
of NC 73 and therefore cumulative impacts will need to be addressed in this impact
area. the following work needs to be done quickly in order to meet DOT's December
Let List.
the solution is to 1) have protected wooded buffers (30 feet should be sufficient) on
all internittent and perennial streams, 2) require on-site stormwater management for
new development in order to control erosive velocities in stream channels and
pollutant delivery and 3) have DOT fund a local watershed plan which would target
appropriate stream mitigation sites for WRP, EEP, private banks and other entities.
The following folks need to do the following work in order to get this project in the
December Let List: the Corps of Engineers has issued the NAtionwide 14 Permit for
this project and this is the last project on DOT's priority list that DWQ has not yet
issued a 401 Certification for.
Buck Engineering -
Determine which municipalities will need to work with DWQ to improve
ordinances (working with Steve Zoufaly since he has had contact with local water
supply watershed folks)
Determine the general level of willingness to address the above listed items
. John - talk to Coleen on Friday to determine what level of written, local
committment is needed for this project (City Council, Mayor, or City Manager).
DOT -
(1 and 2)
DWQ -
Cynthia - prepare draft of 401 including our (now standard!) language for working
with the local governments regarding cumulative impact and a condition
requiring DOT to fund a local watershed plan.
Confirm the committment to fund a local watershed plan and ensure that
EEP/WRP is willing to do this plan.
Once Buck Engineering has determined the level of willingness of the local
officials to work with DWQ on this plan, then make formal contact with
the appropriate local officials.
If i have left anything out, please feel free to correct/elaborate. thankx
1 of l 11/19/2003 5:51 PM
imap://cynthia.vanderwiele%4Odwq.denr.ncmail.net@c...
Subject: [Fwd: projects we discussed]
From: John Dorney <john.dorney @ ncmail. net>
Date: Sun, 24 Aug 2003 15:51:34 -0400
To: Greg Thorpe <[e-mail]. nc.us>
p.s. (i did not copy everyone else). URS Corporation did the Cumulative
Impact report for the R-2246C project in Cabarrus County. they did a
decent job analyzing overall land use change but an absolutely lousy job
on the existing ordinances and their water quality impact. therefore
their conclusion (that the existing ordinances are sufficient to protect
water quality) is laughable. someone needs to give them religion about
cumulative impact. i suspect that someone will be me (eventually) once
cynthia reviews the report. just an fyi at this point.
i'll be glad to play with the local governments if that is what is
needed (as with monroe and greensboro). thankx
Subject: Re: projects we discussed
From: [e-mail]
Date: Sun, 24 Aug 2003 15:44:47 -0400
To: [e-mail]
----- The following is an automated response
----- to your message generated on behalf of [e-mail]
I am out of the office and will be unable to respond to your phone calls or emails
until September 3rd.
I am racing in the premier ultra-distance cycling event-- the Paris-Brest-Paris
1200km/90-hour race and then cycle-touring the south of France afterwards.
Cynthia
Subject: projects we discussed
From: John Dorney <john.dorney @ ncmail. net>
Date: Sun, 24 Aug 2003 15:44:44 -0400
To: Greg Thorpe <[e-mail]. nc.us>
CC: Rob Ridings <[e-mail]>, "beth.barnes" <[e-mail]>,
Cynthia Van Der Wiele <cynthia.vanderwiele @ ncmail. net>
i have looked over the files and your correspondence for the projects we
discussed. here is their status to date. please call me (733-9646) if
you need to discuss. thankx
1. R-0617B - Lincoln County. Issued on August 12, 2003.
2. R-0967CA - Stanly County. Awaiting the Public Notice from the Corps
and the end of the comment period. We should be able to issue then.
3. R-2911E -Rowan County. Awaiting the planting plan and ROW revision
as well as the Public Notice from the Corps and the end of the comment
period.
4. R-2246C - Cabarrus County. Beth is reviewing the stormwater plan
submittals. My conclusion on the Cumulative Impact Report (Cynthia will
need to review it as well) is that a quantitative analysis (modeling)
will be needed for sediment in the 303(d) watersheds (essentially this
1 of 2 11/19/2003 6:48 PM
imap://cynthia.vanderwiele%40dwq.denr.ncmail.net@a c...
entire segment). We can accelerate this process by having the local
governments agree to comprehensive stream buffers, on-site stormwater
management to control downstream channel stability and better sediment
and erosion control BMPs (like Monroe and Greensboro). Please advise on
this one.
5. U-2524AB and AC - Guilford County. Beth will write the 401 this
week.
6. R-2413C - Guilford and Rockingham Counties. Rob will have to find
this file and I will review as soon as he does that.
7. U-2009B - Cabarrus. Rob will check to be sure that no 303(d) waters
are present. We are still waiting for the Public Notice and the end of
the comment period. If there are no 303(d) waters (and therefore no
cumulative impact issues), we should be able to issue the 401 after that
comment period ends.
That should be it (I hope anyway!) please forward this to randy since i
don't have his email!. thankx.
2 of 2 11/19/2003 6:48 PM

Concord-Kannapolis ;NETADS, 14.01 C 46P
Westside Bypass & Westside Bypass Extension Projects
State Project Nos. 8.2661601 & 9.8013406
TIP R-2246 & U-2009C -EA QUAUTY SOON
Rowan and Cabarrus Counties
North Carolina
Indirect and Cumulative Impact Study
Quantitative Assessment of Sediment and Nutrients
Prepared for:
North Carolina Department of Transportation
OF NO
y
1 A
OF TR
`24-)
Prepared by:
Buck Engineering
8000 Regency Parkway, Suite 200
Cary, North Carolina 27511
September 2003

' Summary
This document is a quantitative assessment of the potential indirect and cumulative
' effects on water quality from eutrophication and sedimentation that may result from the
incremental effects of the proposed Kannapolis Westside Bypass (TIP U-2009), the
Westside Bypass Extension (TIP R-2246), and development activities in the same
' geographic region. The purpose of this assessment is to provide sufficient environmental
information to enable resource agencies to make final permitting decisions.
B
d
h
W
id
f
f
ypass an
erence, t
e
ests
e
re
For the purposes of this document and ease o
Westside Bypass Extension project areas are collectively referred to as the Bypass.
d W
i
f
h
S
il
ater
on o
t
e
o
an
Water quality modeling techniques consisting of an applicat
Assessment Tool (SWAT) model were employed to produce sediment and nutrient
' loading estimates for the Bypass watershed for three scenarios:
• Current conditions
• Year 2015 "No Build" and
' • 2015 "Build".
The SWAT model incorporated existing geographic, environmental, and management
t conditions together with projected land use conditions to estimate sediment and nutrient
loadings for the three scenarios. Scenarios were based on existing land use conditions
and projected growth surrounding the proposed corridor as detailed in the recently
' completed indirect and cumulative impact assessment document for the Bypass
(NCDOT, 2003). This document was transmitted to the NCDWQ and USACE under
separate cover earlier this month.

Due to the present impaired water quality in the southern portion of the watershed (the
303(b) listed Coddle Creek), the watershed below NC 73 was modeled in further detail to
' determine the effect of enhanced best management practices (BMPs) on pollutant
delivery.
' Results of the watershed-wide analysis suggest construction of the Bypass will result in
an increase in sediment of 7.0%, an increase in total nitrogen of 5.3%, and an increase in
' total phosphorus loading of 7.4% in the project watershed as compared to the No Build
option. While these increases are estimated to be directly attributable to development
generated by the Bypass, in each case they are small compared to the predicted difference
t between current conditions and estimated future conditions. The No Build scenario is
predicted to increase sediment and nutrient loading in the year 2015 by more than 15%
with the Bypass contributing only marginally to the increase in sediment and nutrients.
' Results from the Coddle Creek watershed indicate that conduction of the lower portion
of the Bypass (TIP R-2246) will result in an increase in sediment loading to the sediment-
impyed segment of Coddle Creek compared to the No Build option. However, this
' increased sediment load can be mitigated through the implementation of a combination of
stormwater BWs, riparian vegetation protection and stream restoration. The northern
ICI Quantitative Assessment i Buck Engineering
for R-2246 and U-2009

' portion of the Bypass (TIP U-2009) does not have a significant effect on sediment
delivery to the 303(d) portion of Coddle Creek.
' Conclusions of the report are as follows:
• Water quality in the Bypass watershed may be impacted by increased sediment
' in 2015 due to development regardless of whether the Build or No Build option
is selected.
t • Stream bank erosion is the primary source of increased sediment loading to the
watershed under both future scenarios. 65% of the increased sediment load
attributable to the Build condition comes from stream bank and channel erosion.
7

i
i
n
n

J

• Hydraulic and sediment load effects of the Build option are primarily the result
of residential development, particularly in the southern portion of the watershed
below NC 73.
Many channelized streams in the basin are at risk of degradation and bank
erosion if riparian vegetation were to be removed. 40% of stream sites survey
during the study exhibited signs of instability.
• Water quality in the watershed's two public drinking water supplies will not be
affected by the project.
• While nutrient loading will be increased by the Build option instream nitrogen
concentrations will be essentially unchanged by the project and phosphorus
concentrations will increase by less than 3%. The increase in nutrient
concentrations alone does not threaten water quality in the watershed.
• Increased nutrient loading under both the Build and No Build option are
predicted to impact the eutrophic condition of Mill Creek arm of the Coddle
Creek Reservoir. Mill Creek is not a 303(d) listed stream.
• Development activity associated with the build option north of NC 73 will have,
no significant impact on 303(d) listed streams in the watershed. 90% of the
increased sediment load to Coddle Creek under the Build scenario is the result
of land use changes in the southern portion of the watershed below NC 73.
Sediment loading to Coddle Creek under the Build option can be controlled to
No Build levels with a combination of on-site stormwater controls, riparian
vegetation protection and stream restoration.
ICI Quantitative Assessment
for R-2246 and U-2009
ii
Buck Engineering

I
I Table of Contents
' 1 Introduction .................................................................................................................1
2 Project Location ........................................................................................................ .. 2
3 Current and Future Land Use ............................................... 7
' 4 .....................................
Assessment of Sediment and Nutrients ..................................................................... ..
13
4.1 Methods ............................................................................................................. 13
' 4.1.1 Model Selection .........................................................................................
4.1.2 Watershed Delineation .............................................................................. 13
13
4.1.3 Field Data Collection ................................................................................ 13
' 4.1.4 Other Data Sources ....................................................................................
4.2 Model Calibration ............................................................................................. 19
21
4.3 Results and Discussion ...................................................................................... 27
' 4.3.1 General Hydraulic Impacts ........................................................................
4.3.2 Hydraulic Impacts in the Coddle Creek Drainage ..................................... 27
28
4.3.3 General Sediment Impacts ........................................................................ 28
' 4.3.4 Sediment Impacts in the Coddle Creek Drainage .....................................
4.3.5 Nutrient Impacts ........................................................................................ 29
29
5 Conclusions ............................................................................................................... 33
6 References ................................................................................................................. 35

ICI Quantitative Assessment iii Buck Engineering
' for R-2246 and U-2009

LIST OF FIGURES
Figure 1. Project Vicinity Map
Figure 2. Indirect and Cumulative Impact Study Area
Figure 3. Greater Project Watershed
Figure 4. ICI Impact Area
Figure 5. Current Land Use Conditions
Figure 6. Predicted Land Use 2015 Without Bypass (No Build Option)
Figure 7. Predicted Land Use 2015 With Bypass (Build Option)
Figure 8. Land Use Scenarios for the Project Impact Area
Figure 9. Pre-Model GIS Data Management
Figure 10. SWAT Model Schematic
Figure 11. Coddle Creek and Irish Buffalo Creek Watersheds
Figure 12. Field Site Locations
Figure 13. Weather Stations
Figure 14. General Soils
Figure 15. Water Withdrawals and Discharges
Figure 16. Modeled Stream Segments
Figure 17. Modeled Watersheds
Figure 18. Predicted Discharge for Three Scenarios
Figure 19. Predicted Sediment Loading for Three Scenarios
Figure 20. Predicted Coddle Creek Sediment Loading for Three Scenarios
Figure 21. Predicted Nitrogen Loading and Concentration for Three Scenarios.
Figure 22. Predicted Phosphorus Loading and Concentration for Three Scenarios.
LIST OF TABLES
Table 1. Land Use Conditions Above and Below NC 73
Table 2. Selected Cross Section and Sediment Sites
Table 3. Reservoir Data
APPENDICES
Appendix A: Field Surveys - Stream Cross-Sections
Appendix B: Sediment Analyses
Appendix C: Photo Log
ICI Quantitative Assessment
for R-2246 and U-2009
iv
Buck Engineering

1 Introduction
t l
i
d
cumu
at
ve.
This document presents a quantitative assessment of the potential indirect an
effects on water quality from sedimentation and nutrient enrichment that may result from
' the incremental effects of the proposed Westside Bypass (TIP U-2009) and Westside
Bypass Extension (TIP R-2246) projects in Cabarrus County, North Carolina and other
past, present and future development activities in the same geographic region as the
' project. For the purposes of this document, the two projects area treated as a single unit,
collectively referred to as the Westside Bypass. This report follows and builds upon the
recently completed Indirect and Cumulative Impact Study for the proposed projects
' (NCDOT, 2003).
Indirect effects result from activities induced by a proposed action. The Council on
' Environmental Quality (CEQ) defines "indirect effects" (also referred to as "secondary
effects") as "impacts on the environment, which are caused by the action and are later in
time or farther removed in distance, but are still reasonably foreseeable" (40 CFR 3
' 1508.8). The CEQ regulations further state that indirect effects "...may include growth-
inducing effects and other effects related to induced changes in the patterns of land use,

' population density or growth rate, and related effects on air and water and other natural
systems, including ecosystems." The CEQ defines "cumulative impacts" as those
"...which result from the incremental impact of the action when added to other past,
present and reasonably foreseeable future actions regardless of what agency (federal or
nonfederal) or person undertakes such other actions" (40 CFR 3 1508.7).

' In this case, changes in land use and development patterns surrounding the Bypass have
been determined to have the potential for adverse indirect impacts to water quality from
increased sediment loading (NCDOT, 2003). Sediment loading and associated pollutant
loadings were analyzed within the Bypass watershed. The analysis includes current and
future predictions of annual sediment yield, total nitrogen (TN), and total phosphorus
(TP) loading within a defined study boundary selected to enclose the majority of
development anticipated to be associated with project construction and implementation.
' Results of the sediment and nutrient analysis quantify the percent increases in loading
rates between current conditions and anticipated land use for two future scenarios: the
year 2015 with the Bypass in place and the year 2015 without construction of the Bypass.
The basin scale water quality model Soil and Water Assessment Tool (SWAT, Neitsch et
al. 2002) was selected as a tool for the sediment and nutrient analysis. SWAT was
' developed to quantify the impact of land management practices in large, complex
watersheds and is designed to integrate many land cover, land use, and environmental
' features of a watershed with land and stream management practices into meaningful
water quality predictions. The model's ability to predict water quality sediment and
nutrient response to changing land use and management conditions makes it an ideal
' model to predict the potential secondary impacts from large scale projects such as the
proposed Bypass.
I

E

7
?7

2 Project Location
The project is a north-south corridor through western Cabarrus County which would be
the western portions of the City of Concord and the City of Kannapolis. The Bypass
project will consist of two typical sections to be constructed on existing and new
alignment. A five-lane curb and gutter typical section on an 80-foot right-of-way will be
constructed between Poplar Tent Road (SR 1394) and NC 73 (Figures 1 and 2). This
section will be connected at I-85 by the Crisco Road interchange. The design speed for
this section is 50 miles per hour with an anticipated posted speed of 45 miles per hour. A
four-lane median-divided typical section on a 200-foot right-of-way will be constructed
between NC 49 and Poplar Tent Road (SR 1394) south of I-85 and between NC 73 and
Tuckaseegee Road (SR1616) north of I-85. The design speed for these sections is 60 and
70 miles per hour, respectively, with both sections anticipated to have a posted speed of
55 miles per hour. The total length of the project is 13.3 miles. Partial access control
will be implemented for the project except for the US 29 interchange, which will have
full control of access.
An indirect and cumulative effects study area (Study Area) was defined to include all
areas in proximity to the project corridor that could experience development induced by
the proposed project within the timeframe of this study, 1999 to 2015. The Study Area
spans the planning jurisdictions of Cabarrus and Rowan Counties and the City of
Harrisburg at the south, the City of Concord in the middle, and the City of Kannapolis at
the north (Figure 2). The Study Area is within the Coddle Creek Reservoir (Lake
Howell) water supply watershed and the Coddle Creek and Irish Buffalo Creek
watersheds. These watersheds drain into the Rocky River and are in Subbasin 03-07-
1 lof the Yadkin-Pee Dee River system. Short reaches of the Rocky River and Back
Creek also pass through the Study Area south of the Bypass (Figure 3). The section of
Coddle Creek below the Coddle Creek Reservoir dam and the Rocky River are Clean
Water Act Section 303(d) streams listed as impaired from sedimentation (See Figure 3).
The Coddle Creek Reservoir is a water supply resource serving Cabarrus County and the
City of Kannapolis. Portions of the Coddle Creek Reservoir critical water supply
watershed lie within the project area. Thus, concern for potential indirect and cumulative
impacts to water quality of these resources are of primary concern.
Within the larger Study Area an area of potential impact was determined through
evaluating land uses along the Bypass project corridor (NCDOT 2003). This area
(Impact Area) was defined as the location where changes to land use are likely to occur
as an indirect/induced effect of the project (Figure 4). Within the Impact Areas specific
land use development scenarios for the year 2015 with and without the Bypass were
developed. These "Build" and "No Build" scenarios, along with current conditions, are
described below.
ICI Quantitative Assessment
for R-2246 and U-2009
2
Buck Engineering

N ?
70
Salisb

J Project Study Area
153
1
KannaDOIIS
49
Charlotte

TIP U-2009
Concord
73
r
49
TIP R-2246
Locust
t
Of Hplliy ?,*
G
t• 1
b l
* North Carolina Department of Transportation
Project Development & Environmental
Analysis Branch
a'
?'Fn, of rows°c
Figure 1. Project Vicinity Map
Concord - Kannapolis
Westside Bypass & Westside Bypass Extension Projects
State Project Nos. 8.2661601 & 9.8013406
TIP R-2246 & U-2009C
0 2.5 5 1Q
Miles
0 2.5 5 10 15 2Q
ilometers
N
f L%
hina G
andis 1
End Project
136
' ZIE
PQ vid.4C?KLENBUi

SR1430
SR1394
ti
SR1431
SR1312
S R 1309
SR1309
`? § ?T
North Carolina
Department of Transportation
Legend Oe
Westside Bypass -TIP U-2009 Project Development & Environmental
Westside Bypass Extension - TIP R-2246 Analysis Branch
Existing Portions of the Westside Bypass Roads
Streams
- Lake Figure 2. Indirect and Cumulative Impact Study Area
Study Area
j Municipal Boundary 1 0.5 0 1 2 3 4 5Miles
C? 10.50 1 2 3 4 5 6 7
COU f'lt Jy' OU "?defy Kilometers

F_
I:
1
' u1
N
s
x
'C a
N
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94
4y`
r
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Legend
Streams
303(d)-Listed Streams
- Lake Water Supply Watersheds
Study Area - Critical
Greater Watershed Protected
?OF NO[I?? ?,9
i,
*` ?* North Carolina Department of Transportation
Project Development & Environmental
0 2
Analysis Branch
?``M or m nHSe??:
Figure 3. Greater Project Watershed
1 0.5 0 1 2 3 4 5
Miles
10.50 1 2 3 4 5 6 7
Kilometers

3 Current and Future Land Use
Land use in the project area has been described for current conditions and anticipated
future conditions in the year 2015 (NCDOT, 2003). This planning work took into
account regional growth trends, land use and zoning and transportation networks. The
result was a detailed assessment and discussion of current land use, projected land use in
the year 2015 without the Bypass and projected land use in the year 2015 with the Bypass
in place. These three scenarios were further refined to produce Geographic Information
System (GIS) data layers reflecting the three land use scenarios at the parcel level. These
data layers are suitable for model input and are presented below for current conditions
(Figure 5), the No Build option in 2015 (Figure 6) and the Build option in 2015
(Figure 7).
Although land use information from the entire project area and associated watersheds was
studied and used in the SWAT model, only parcels within the Impact Area were
determined to result in indirect and/or cumulative impacts (NCDOT, 2003). Therefore,
only land uses within the Impact Area are estimated to change under the three scenarios.
These anticipated land use differences between the scenarios are presented in Figure 8
and represent the driving force in predicted water quality differences between the three
scenarios.
Due to the presence of 303(d) listed streams in the southern portion of the Study Area,
' land use information for current conditions and the Build and No Build options were
broken out for land areas above and below highway NC 73 and are presented in Table 1.

C

C

' ICI Quantitative Assessment 7 Buck Engineering
for R-2246 and U-2009
1
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Legend 4 ?OF NO?iH C,9% 9
= County Boundary Study Area North Carolina Department of Transportation
Project Development & Environmental
C
Municipal Boundary o-' Analysis Branch
t------I ?
Existing Land Use
- Industrial/Commercial Cultivated
Figure 5. Current Land Use Conditions
Low Density Residential Forested
Med Density Residential Transportation
- High Density Residential Water 1 os o 1 z s a sMiles zzzz=mmoooooZZZZZ 1050 1 2 3 4 5 6 7
Pasture/Mngd Herb Kilometers
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North Carolina Department of Transportation
County Boundary Study Area
- - -_ o Z I Project Development & Environmental
Municipal Bounda Analysis Branch
ry
Existing Land Use
- Industrial/Commercial Cultivated Figure 6. Predicted Land Use 2015 Without Bypass
Low Density Residential. Forested (No Build Option)
Med Density Residential - Transportation
_ High Density Residential Water 1 05 0 1 2 3 4 5Miles
10.50 1 2 3 4 5 6 7
- Pasture/Mngd Herb Kilometers
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Legend OF Np?TN ?,9
C o u n t y B o u ,? d a r t' Study Area North Carolina Department of Transportation
Project Development & Environmental
j Municipal Boundary Analysis Branch
7?p i
Existing Land Use
Industrial/Commercial Cultivated Figure 7. Predicted Land Use 2015 With Bypass
Low Density Residential Forested (Build Option)
AijkjI Med Density Residential Transportation
_ High Density Residential Water 1 0.5 0 1 2 3 4 5Miles
10.50 1 2 3 4 5 6 7
Pasture/Mngd Herb Kilometers

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Table 1. Land Use Conditions Above and Below NC 73
Current Conditions - Area (m!2) "No Build" Option - Area (mil) "Build" Option -Area (mi2)
Land Use Total Above NC 73 Below NC 73 Total Above NC 73 Below NC 73 Total Above NC 73 Below NC 73
Commercial/Industrial ' 5.28 0.70 4.57 5.42 0.71 4.71 5.77 1.07 4.71
Cultivated 0.11 0.11 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Forested/Wetland 1.56 0.95 0.60 0.76 0.45 0.31 0.76 0.45 0.31
High Density Residential 0.06 0.00 0.06 0.06 0.00 0.06 0.06 0.00 0.06
Low Density Residential 13.81 10.06 3.75 11.77 8.23 3.54 7.16 6.30 0.85
Med Density Residential 5.37 3.36 2.01 8.65 6.30 2.34 12.79 7.83 4.96
Pasture/Mn d Herb 0.62 0.51 0.11 0.11 0.00 0.11 0.11 0.00 0.11
Road 1.65 0.73 0.92 1.65 0.73 0.92 1.77 0.78 1.00
Water 0.13 0.04 0.09 0.16 0.05 0.11 0.16 0.05 0.11
Total 28.58 16.47 12.11 28.58 16.47 12.11 28.58 16.47 12.11
Current Conditions - Area (%) "No Build" Option - Area (%) "Build" Option -Area (%)
Land Use Total Above NC 73 Below NC 73 Total Above NC 73 Below NC 73 Total Above NC 73 Below NC 73
Commercial/Industrial 18.5% 4.3% 37.7% 19.0% 4.3% 38.9% 20.2% 6.5% 38.9%
Cultivated 0.4% 0.7% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0%
Forested/Wetland 5.4% 5.8% 5.0% 2.6% 2.7% 2.6% 2.6% 0.2% 0.2%
High Density Residential 0.2% 0.0% 0.5% 0.2% 0.0% 0.5% 0.2% 0.0% 0.5%
Low Density Residential 48.3% 61.1% 31.0% 41.2% 50.0% 29.2% 25.0% 38.3% 7.1%
Med. Density Residential 18.8% 20.4% 16.6% 30.3% 38.3% 19.4% 44.8% 47.5% 40.9%
Pasture/Mn d Herb 2.2% 3.1% 0.9% 0.4% 0.0% 0.9% 0.4% 0.0% 0.9%
Road 5.8% 4.4% 7.6% 5.8% 4.4% 7.6% 6.2% 4.7% 8.2%
Water 0.50/( 0.2% 0.7% 0.6% 0.3% 0.9% 0.6% 0.3% 0.917,
Total 100% 100% 100%
ICI Quantitative Assessment
for R-2246 and U-2009
12
Buck Engineering

4 Assessment of Sediment and Nutrients

4.1 Methods
' Water quality modeling techniques were employed to produce sediment and nutrient
loading estimates for the Bypass watershed for the three scenarios of current conditions,
year 2015 No Build, and 2015 Build conditions. The model incorporated existing
geographic, environmental, and management conditions together with projected land use
conditions to estimate sediment and nutrient loadings for the three scenarios.
4.1.1 Model Selection
Soil and Water Assessment Tool (SWAT, Neitsch et al. 2002) was selected as a tool for
the sediment and nutrient analysis. SWAT was developed to quantify the impact of land
' management practices in large, complex watersheds and is designed to integrate many
land cover, land use, and environmental features of a watershed with land and stream
management practices into meaningful water quality predictions. The model's ability to
' predict water quality sediment and nutrient response to changing land use and
management conditions makes it an ideal model to predict the potential secondary
' impacts from large scale projects such as the proposed Bypass.
The SWAT model requires topographic, hydrographic, land use, soils and weather data to
simulate surface water quality (Figure 9). Soil, groundwater, reservoir and stream
processes components are modeled (Figure 10).
4.1.2 Watershed Delineation
A digital elevation model (DEM) for the project area was developed based on 1:24,000
typographic maps. ESRI GIS software Spatial Analyst was use to delineate watershed
' boundaries. Since only a fraction of the Rocky River drainage was influenced by the
Project Area (Figure 3), it was excluded from this analysis. For modeling purposes, the
watersheds of Irish Buffalo Creek and Coddle Creek in and above the Project Area were
' delineated and adopted as the model boundaries (Figure 11).
4.1.3 Field Data Collection
The SWAT model requires information about channel dimensions, Manning's n, stream
cover, and bank erodibility parameters. Field data measurements were taken at selected
' study sites to fulfill this data need. Results were extrapolated from site locations to larger
re
resentative areas
p
.

ICI Quantitative Assessment 13 Buck Engineering
for R-2246 and U-2009

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Snow Cover
Snow Melt
Infilltration Surface Runoff
Transmission Losses -
Strea
mflow
Soil Storage Pon
alance
Irrigation Diversion
Soil Water Routing
V
Transmission Losses
Soil Evaporation -OE
Route to next Reach
or Reservoir
Plant Uptake and
Transportation
Lateral Flow
Percolation
Shallow Aquafer
Irrigation Revap Seepage Reurn Flow
Deep Aquifer
Irrigation
pt NOPiM 'PTO
a North Carolina Department of Transportation
Project Development & Environmental
z
r 0
r??rOr ienH???
Analysis Branch
Figure 10. SWAT Model Schematic

, Nk

Legend
Streams
_ Lake
Watershed
f North Carolina Department of Transportation
Project Development & Environmental
Analysis Branch
Figure 11. Coddle Creek and
Irish Buffalo Creek Watersheds
1 0.5 0 1 2 3 4 5
Miles
10.50 1 2 3 4 5 6 7
Kilometers

' Twenty-eight stream sites were surveyed within the project area watershed to determine
channel dimension, assess stream bank condition, and measure bed materials. Sites were
' selected to represent a wider ge of drainage areas from each portion of the Study Area.
An initial reconnaissance of the area was performed to determine whether the sites were
viable. Sites with poor or dangerous access and sites with unusual hydraulics were
' excluded from the study. Selected sites were deemed to be representative of typical
stream conditions in the vicinity. Selected sites are presented in Figure 12.
' A riffle (or a cross-over in sand bed streams) was chosen up or downstream of the road
crossing at a location that did not appear to be adversely impacted by the road crossing.
When the channel had pattern, pools were also surveyed at meander bends. Scour pools
' caused by woody debris or other in-stream blockages and were not selected to be
surveyed. A total of 34 cross sections were surveyed.
' Cross-section measurements were taken of the floodplain, top of bank, bankfull, edge of
baseflow channel, water surface, and channel features including thalwag.
' A modified Wolman pebble count analysis was used on course riffles that exhibited
cobble and course gravel as the dominant substrate (Bunte and Abt, 2001). In sand
bed/fine gravel streams bulk samples were taken of the bed material using standard
' USGS sampling procedures. Bulk samples were composed of at least 10 composite
samples collected in equal increments across the baseflow stream channel. This bulk
sample was then dried and sieved to determine the percent composition of individual
' sized particles.
Bank Erodibility Hazard Index (BEHI) estimates were performed at each site (Rosgen,
' 2000). The BEHI values were helpful in determining bulk erodibilty for the modeling
phase.
' A summary of the data relevant to the SWAT model input for each of the 28 field surveys
is listed in Table 2. Detailed cross section and sediment data are presented in Appendix
A and B respectively. Photos were taken at each cross section looking up and
downstream, and when an unusual condition existed; photos were taken of each bank.
These photos are presented in Appendix C.

' ICI Quantitative Assessment 17 Buck Engineering
for R-2246 and U-2009
i r, r-

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Legend .? North Carolina Department of Transportation
Project Development & Environmental
Field Study Locations Analysis Branch
Streams
Municipality Boundary Figure 12. Field Site Locations
- Lake
1 0.5 0 1 2 3 4 5
Watershed Miles
10.50 1 2 3 4 5 6 7
Kilometers

Table 2. Selected Cross-Seetion and SefdimPnt RitP.Q

Site
#

ocation Cross
Sectional
Area (sq.
ft.)
Stream
Width
(ft)
Average
Depth
(ft)
Width to
Depth
Ratio

Stream
Class

BEHI
Rating
la Afton Run at Dogwood 9.5 9.5 1.0 9.4 E5 MOD
lc Afton Run at Hwy 73 61.5 19.5 3.2 6.2 E5 MOD
ld Afton Run at Poplar Tent 57.8 19.0 3.0 6.3 G4/5 VAIGH
lb Afton Run at Trinity Church 19.7 12.6 1.6 8.0 Gc4/5 HIGH
2a-1 Coddle Ck (UT) at Enochville 18.1 9.0 1.9 4.7 E5 MOD
2f-1 Coddle Ck (UT) at NC 49 25.3 14.3 1.8 8.1 E4 HIGH
2b-1 Coddle Ck (UT) at Lon briar 54.5 18.0 3.0 6.0 E5 MOD
2c Coddle Ck at Archer Rd 166.6 40.5 4.1 9.9 Gc5 MOD
2e Coddle Ck at Hwy 29 358.4 53.9 6.7 8.1 E5 MOD
2b-1 Coddle Ck at Patterson Farm Rd 77.6 25.6 3.0 8.4 Gc5 MOD
2d Coddle Ck at Poplar Tent 276.0 52.2 5.3 9.9 E5 HIGH
2a Coddle Ck at Teeter 72.3 23.1 3.1 7.4 Gc5 MOD
3a East Fork Coddle Ck at Unit Ch. 49.4 25.9 1.9 13.6 F5 MOD
4b-1 Irish Buffalo (UT) at Azalea 38.0 22.1 1.7 12.8 F5 V.HIGH
4b-2 Irish Buffalo (UT) at Oakwood 47.0 17.4 2.7 6.4 Gc5 V.HIGH
4a Irish Buffalo at Saw Rd 40.5 18.3 2.2 8.3 Gc5 MOD
4c Irish Buffalo Ck at Hwy 73 125.3 37.4 3.4 11.2 Gc5 MOD
4b Irish Buffalo Ck at Mooresville Rd 130.4 28.8 4.5 6.4 E5 MOD
5d-1 Mill Ck (UT) at Drakestone 17.3 9.9 1.8 5.6 E5 LOW
5c Mill Ck at Mooresville Rd 76.2 26.4 2.9 9.2 E5 MOD
5a Mill Ck at Smith Rd 14.6 14.6 1.0 14.6 Bc4/3 LOW
5d Mill Ck at Stirewalt 58.5 23.1 1.8 12.9 E5 MOD
5d-1 Mill Ck at Wright Rd 31.3 20.1 1.6 12.9 F5 MOD
6c Park Ck at Plum 54.3 20.1 3.4 5.9 E5 HIGH
6a Park Ck at Smith 20.0 12.2 1.6 7.5 E5 LOW
6b Park Ck at Wright 25.1 13.6 1.8 7.4 E5 LOW
7a Wolf Meadow at Hwy 29 7.9 5.8 1.4 4.3 E4/3 MOD
7b Wolf Meadow at Roberta 62.9 23.4 2.7 8.7 E5/1 LOW
4.1.4 Other Data Sources
Other data required for model calibration and implementation were secured and are
described below.
Weather station data were obtained from the Salisbury, NC National Weather Service
station. This weather station is the closest to the Project Area (Figure 13), is in the same
geophysiographic region, and has a similar altitude. Weather statistics over the past 91
years from this site were used as a source to generate simulated weather for model runs.
ICI Quantitative Assessment
for R-2246 and U-2009
19
Buck Engineering
' ALLEGHANY
ASHE
STOKES ROCKI AM CASWELL
' Transou
Elev = 1005.80 meters
Reidsville 2NW
W I LKES Elev = 271.30 meters
'
YADKIN
GUILFORD
ALAMANCE
Winston-Salem WB AP
Elev = 295.70 meters
ALEXANDER DAVIE
IREDELL DAVIDSON Siler City
Elev = 192.00 meters
RANDOLPH
ATAWBA CHATHAM
ROWAN-
Hickory Airways Salisbury Elev = 347.50 meters Elev = 231.60 meters
LINCOLN Karma OIIS
Concord
CABARRUS
MONTGOMERY MOORE
STANLY
GASTON
1 MECKLENBURG
Charlotte
N HOK
UNION ANSON RICHMOND
Laurinburg
Elev = 70.10 meters SCOTLAND
y` t NORTH r4
* North Carolina Department of Transportation
o Project Development & Environmental
Legend Analysis Branch
fHrOf 1RAH5?
• Weather Station
County Boundary Figure 13. Weather Stations
Municipality Boundary
Study Area 10 5 0 10 zo 30
files
10 5 0 10 20 30 40 50
ilometers

F1

Because current detailed soils information is not available for the entire project area,
general soils were used. Four distinct regions of soil types are located within the Bypass
watershed (Figure 14).
Two reservoirs in the watershed were modeled both because they have the potential to
mitigate downstream sediment and nutrient pollution and because they may be impacted
by the Bypass (Figure 15). Model parameters for the two reservoirs are presented in
Table 3.
Table 3. Reservoir Data
Coddle Creek Reservoir Kanna olis Lake
Surface area to emergency spillway 607.03 116.95
Volume to emergency spillway 18927060 5110306
Surface area to principal spillway 526.09 116.95
Volume to principal spillway 15141650 5110306
Average volume Full Pond Full Pond
Average amount withdrawn each day 0.2409695 0.3427901
Monthly target reservoir storage Full Pond Full Pond
Minimum daily outflow 0.1699011 0.1314379
Average daily outflow 0.1699011 0.1862037
Two small discharges of treated waste are permitted under the National Pollutant
Discharge Elimination System (NPDES) in the Bypass watershed (Figure 15). Both of
these facilities are associated with water treatment plant back wash and have limited
effect on water quality.
4.2 Model Calibration
Stream channel segmentation was based upon the DEM and existing stream hydrography.
ESRI GIS software Spatial Analyst was use to determine the location all channels with
drainage areas greater than one square mile. Reaches were linked at their confluences
with routing nodes (Figure 16). A total of 35 stream miles in 80 reaches were modeled
within the 117 square mile watershed. The 80 sub-watersheds associated with each of
these reaches are shown in Figure 17.
Current land use and soils data were overlain with the 80 sub-watershed boundaries to
create tables of the hydraulic response units (HRUs), unique combination of soil and land
use for each sub-watershed. The SWAT model was then parameterized with the spatial
data described above.
Channel dimensions, Manning's n, stream cover and bank erodibility parameters were
entered for each stream reach to reflect values observed and recorded in the field.
ICI Quantitative Assessment 21
for R-2246 and U-2009
Buck Engineering

I
I "J.

N
V _
Legend ' North Carolina Department of Transportation
PtoF~o?rl'c,QG
x x
Soil Class (Statsgo) Project Development & Environmental
?9p Analysis Branch
NC074 Streams yf? 01 TI'-SV
NCO82 Lake Figure 14. General Soils
z
NC083
1 0.5 0 1 2 3 4 5
NC086 Miles
10.50 1 2 3 4 5 6 7
Kilometers

4V

City of Concord
Water Treatment Plant
k Tt

Legend
O Water Intake Streams
¦ NPDES Discharge Lake
Watershed
North Carolina Department of Transportation
Project Development & Environmental
z Analysis Branch
'9;ftir or rc ^NSpop.
Figure 15. Water Withdrawals and Discharges
1 0.5 0 1 2 3 4 5
Miles
1050 1 2 3 4 5 6 7
Kilometers
.60il -4N

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may.
s
. . ? i 1

b.:
L
A AI.-L
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'

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1
.c g
r?
Legend North Carolina Department of Transportation
Project Development & Environmental
Streams Analysis Branch
1R NSc
Watershed
® Reservoirs Figure 16. Modeled Stream Segments
Q Model Nodes 1 0.5 0 1 2 3 4 s
Miles
10.50 1 2 3 4 5 6 7
Kilometers J
N
3
4

P4
s y

IRMO
Legend North Carolina Department of Transportation
Project Development & Environmental
Analysis Branch
Streams
Lake
Figure 17. Modeled Watersheds
Watershed
1 0.5 0 1 2 3 4 5
Miles
10.50 1 2 3 4 5 6 7
Kilometers

F

L

The model was run for a fifteen year period of simulated weather. The initial mean
annual runoff value from the model was 0.85 cubic feet per second (cfs) per year. This
compared favorably to the USGS estimate for the region of 1.05 cubic feet per second per
year (Giese and Mason, 1993). Because hydraulic processes are important to essentially
all model components, hydraulic calibration was achieved by minor global adjustment of
the runoff curve numbers so that a final modeled mean annual runoff value of 1.05 was
achieved. This resulted in an average flow of 163 cfs at the outlet of Coddle Creek and
82 cfs the Irish Buffalo Creek outlet.
ICI Quantitative Assessment 26
for R-2246 and U-2009
Buck Engineering

4.3 Results and Discussion
' Results of the analysis suggest that as development continues in the project area to the
projected 2015 build out densities, streams will be impacted by higher flows and higher
sediment and nutrient concentrations. However, modeling results indicate that
construction of the Bypass will result in only marginal increases in sediment and nutrient
concentrations over the No Build option.
t
I
d
li
s
mpac
rau
c
4.3.1 General Hy
Increased impervious surface from development and the Bypass project itself will
' increase stream flow below the project by an average of 4.7%. Only a small increase in
average stream flow of approximately 1 % is expected under the No Build scenario
(Figure 18). These small changes in stream discharge are a result of the fact that the
' project area has already been developed to some extent and that large-scale conversion of
low-density residential neighborhoods to highly impervious surfaces is not anticipated.
While changes in average stream flow of less than 5% are not large compared to changes
' observed in many developing areas, it is possible that increased discharge may result in
bank erosion and cause some streams to degrade. As 40% of surveyed stream reaches
were incised, increased stream flow may affect bank stability on many reaches (Table 2).
' Efforts to protect mature riparian vegetation on stream banks throughout the watershed
would be a key strategy in minimizing this impact.

C
New residential development is primarily factor for the predicted increase in stream flow
' under the Build option. Medium density development within the impact area is predicted
to more double from 5.4 to 12.8 square miles under the Build scenario with 56% of this
' ICI Quantitative Assessment 27 Buck Engineering
for R-2246 and U-2009
Figure 18. Predicted Discharge for Three Scenarios.

u

0
fl
n

increase a result of the project (Table 1). On-site stormwater management of runoff from
new residential development is the primary BMP available to mitigate this impact.
4.3.2 Hydraulic Impacts in the Coddle Creek Drainage
Hydraulic conditions in Coddle Creek are significantly affected by the operation of the
Coddle Creek Reservoir. As a result, Coddle Creek below the Coddle Creek reservoir at
NC 73 expresses a relatively small increase in stream flow as a result of the projects.
However, land use changes below NC 73 do have a significant impact on the hydraulics
of tributaries to Coddle Creek. Specifically, Afton Run and an unnamed tributary to
Coddle Creek at NC 49 showed above average increases in stream flow under the Build
condition of 8%. As with the watershed as a whole, new residential development is the
primary factor for the predicted increase in stream flow in these tributaries under the
Build option. Medium density devel?ment below NC 73 is predicted to increase from
17 to 48% with 89% of this change a result of the Bypass (Table 1). On-site stormwater
management of runoff from new residential development is the key BMP availa e to
mitigate this impact. This impact can be mitigated y requiring new residential
developments in the Coddle Creek watershed below the Coddle Creek reservoir to install
stormwater BMPs that are designed to preserve pre-development Weak flows after build
out.
The North Carolina Division of Water Quality (DWQ) has identified increased stream
flow from stormwater sources as a likely factor in determining existing water quality
impairment in the watershed (NCDWQ 2003). Under Phase II of stormwater rules the
Concord, Kannapolis and Cabarrus County will be required obtain NPDES permits for
there stormwater systems. To compliment this regulatory action DWO has recommended
tined fpr buffer acauisition_(NCD.WQ
don
that the Irish Buffalo Creek watershed beT
0 Results of this study suggest that extending the priority buffer acquisition area to
the Coddle Creek watershed would result in significant water quality improvement.
3 '7
4.3.3 General Sediment Impp?
Results of the sediment analysis suggest that construction of the Bypass will result in an
increase in sediment of 7.0% as compared to the No Build option. Modeling indicates
that 65% of this increase is due to stream bank and channel erosion. Streambank and
channel erosion is the primary cause of increased sedimentation under the Build scenario
due to the hydraulic impacts described above interacting with the many unstable channels
in the Study Area. The remaining increase is due to a combination of land use changes
including construction activities. As the model was run for three discrete land use
scenarios, the exact percentage of sediment derived from construction activities was not
calculated. However, given the large percentage of the increase that can be attributed to,
stream bank erosion and permanent land use changes, sediment impacts from temporary
construction activities appear to be minor source of new sediment loading under the
Build condition.
r
L?
ICI Quantitative Assessment 28 Buck Engineering
for R-2246 and U-2009

It must be noted that a significant increase in sediment load of more than 30% is expected
in the watershed with or with out the Bypass as a result of ongoing development activities
(Figure 19). As streams in the watershed are presently listed on the 303(d) list of
impaired waters it would seem prudent to encQUra?e the targeting of sediment BMPs to
control sediment (including stream restoration) in the project area under either the Build
or No Build option.
Figure 19. Predicted Sediment Loading for Three Scenarios.

Watershed Sediment Loading for Three Scenarios
14000
112000-10000-
8000-
6000-1
~ 4000
2000
------ --- - -----
Current Year 2015 No Build 2015 Build
4.3.4 Sediment Impacts in the Coddle Creek Drainage
' Results of the sediment analysis suggest construction of the Bypass will result in-anr
increase in sediment of 12.0% as compared to the No Build option. As with the greater
watershed, the primary source of the sediment increase is streambank erosion. A
' significant increase in sediment load of more than 20% is expected in the watershed with
or without the Bypass as a result of ongoing development activities (Figure 20).As-
Coddle Creek is listed as a 303(d) due to sediment impacts, the watershed is a key area
for the targeting of sediment BMP of sediment i ro'ect Area under either
t e Build or No Build option.
p management option to control the anticipated
' sediment impacts of the Bui option. Such stormwater BMPs on all new residential
development in the Coddle Creek watershed below NC 73 would mitigate the majority of
sediment impacts from the project in the watershed. Stream restoration of the most
' unstable sites combined with riparian buffer protection would compliment stormwate
management and mitigate o o t e additional sediment loadin to Coddle Creek
expected under the uild scenario.
ICI Quantitative Assessment 29 Buck Engineering
' for R-2246 and U-2009
On-site stormwater BMPs on new developm nt that limit peak flows to pre-development
levels are redicted to be the most effective mana ement o tion to control the antici ated

Figure 20. Predicted Coddle Creek Sediment Loading for Three Scenarios
Coddle Creek Sediment Loading for Three
Scenarios
9000 [- ----- - -
8000 -f"
7000 i
6000
U) 5000
0 4000
~ 30001
2000
10001
Current Year 2015 No Build 2015 Build
The model results also indicate a large increase (> 20%) in sediment loading in Coddle
' Creek can be expected in 2015 with or without the project unless significant steps are
taken to control streambank erosion. The WRP has identified the project watershed as an
area with a great need and opportunity for stream and wetland restoration (NCDWQ
' 2003). The watershed will be given higher priority than non-targeted watersheds for the
implementation of WRP restoration projects. Results of this study confirm that
streambank instability is a major water quality concern for this basin and suggest that
' without intensive stream restoration efforts in the Coddle Creek watershed, sediment
impairment will continue. Many of the field sites visited in this study may be suitable
sites for stream restoration and the data presented in Appendices I and II can be used to
suggest potential restoration sites.
' 4.3.5 Nutrient Impacts
Model results predict an increase in total nitrogen load of 5.3% as compared to the No

' Build option. However, most of this increase in load is attributable to increased flow as
the model predicts an increase in total nitrogen concentration of less than 1% (Figure 21).
This suggests that the impact of the Bypass on instream water quality as a result of total
' nitrogen will be quite small. Further, as the project area is generally downstream of the
two nearby public water supply reservoirs, water quality in public drinking supplies will
not be affected.

' ICI Quantitative Assessment 30 Buck Engineering
for R-2246 and U-2009

Figure 21. Predicted Nitrogen Loading and Concentration for Three Scenarios.
Total Nitrogen Loading and Concentration
Discharge for Three Scenarios
500000 T r 1
450000 - -0.9
400000 1 --0.8
350000
300000 0.7
6
0
_
.
® Load
250000 0.5
200000 0.4 Concentration
150000 -0.3
100000 T 0.2
50000 -- .1
0
0 0
Current 2015 No 2015 Build
Year Build
Results of the nutrient analysis suggest construction of the Bypass will result in an
increase in total phosphorus load of 7.4% as compared to the No Build option. However,
much of this increase in load is attributable to increased flow as the model predicts an
increase in total phosphorus concentration of less than 3% (Figure 22).
Figure 22. Predicted Phosphorus Loading and Concentration for Three Scenarios.
Total Phosphorus Loading and Concentration
Discharge for Three Scenarios
120000
100000
80000
60000
J 40000
20000
0
0.25
0.2
0.15 _
0.1 E
0.05
I Id
0
Current 2015 No 2015 Build
Year Build
ICI Quantitative Assessment 31
for R-2246 and U-2009
Buck Engineering
11

U
0
n

For all three scenarios phosphorus concentrations are high. Water quality in the Coddle
Creek Reservoir and Kannapolis Lake are not threatened by the Bypass as the vast
majority of their watersheds are outside of the Impact Area. However, the Mill Creek
arm of the Coddle Creek Reservoir does have significant portions of its drainage area in
the Impact Area. DWQ's designation of much of this tributary as a water Supply Critical
area will limit the effect of future development on water quality in the reservoir.
However, Nutrient BMPs, especially for phosphorus, would be beneficial in this
watershed. Also, as data on the current eutrophic condition of Mill Creek do not exist,
collection of instream total phosphorus, total nitrogen and chlorophyll-a would help to
guide future management.
ICI Quantitative Assessment 32
for R-2246 and U-2009
Buck Engineering
5 Conclusions

:
' Conclusions of the report
' Water quality in the Bypass watershed may be impacted by increased sediment
in 2015 due to development regardless of whether the Build or No Build option
is selected.
' neAIJ • Stream bank erosion is the primary source of increased sediment loading to the
watershed under both future scenarios. 65% of the increased sediment load
attributable to the Build condition comes from stream bank and channel erosion.
t*A-1 • Hydraulic and sediment load effects of the Build option are primarily the result
of residential development, particularly in the southern portion of the watershed

' • below NC 73.
Many channelized streams in the basin are at risk of degradation and bank
erosion if riparian vegetation were to be removed. 40% of stream sites survey
during the study exhibited signs of instability.
' }IA5• • Water quality in the watershed's two public drinking water supplies will not be

. •
"" affected by the project.
en
the Build o
tion
instream nitro
ill b
i
d b
t
t l
di
Whil
i
6
' p
,
g
e
ncrease
y
e nu
en
oa
ng w
r
concentrations will be essentially unchanged by the project and phosphorus
concentrations will increase by less than 3%. The increase in nutrient
concentrations alone does not threaten water quality in the watershed.
'
• Increased nutrient loading under both the Build and No Build option are
predicted to impact the eutrophic condition of Mill Creek arm of the Coddle
Creek Reservoir. Mill Creek is not a 303(d) listed stream.
'
• Development activity associated with the build option north of NC 73 will have
no significant impact on 303(d) listed streams in th_?watershed. 90% of the.
increased sediment load to Coddle Creek under the Build scenario is the result
' of land use changes in the southern portion of the watershed below NC 73.
b
ll
d
e contro
e
to
Sediment loading to Coddle Creek under the Build option can
No Build levels with a combination of on-site stormwater controls, riparian
' vegetation protection and stream restoration.

d

1
Recommendations to Mitigate Projected Impacts:
A joint effort between the Town of Kannapolis, NC Division of Water Quality
and Cabarrus County to address the reduction of sediment and nutrient loading ?
from development could result in the overall amelioration of water quality in the
area.
• The Mill Creek arm of the Coddle Creek Reservoir should be monitored for
nutrient concentration and algal growth (chlorophyll-a).
• Sediment and nutrient best management practices are recommended in this
watershed. As stream bank erosion is predicted to result primarily from
ICI Quantitative Assessment 33 Buck Engineering
for R-2246 and U-2009
residential development on-site stormwater BMPs designed to limit peak flows
to pre-development levels will prove most effective in preventing increased
sediment loading. Efforts to preserve existing riparian vegetation combined
with stream restoration of unstable stream reaches are also important tools to
control sediment loading.
• It is recommended the NC Wetlands Restoration Program's buffer acquisition
priority status of Irish Buffalo Creek be extended to the Coddle Creek
watershed below the Coddle Creek Reservoir.
• Since the increased sediment load will be the result of stream instability, the
Coddle Creek drainage area within the Study Area should be targeted for stream
restoration.

ICI Quantitative Assessment 34
for R-2246 and U-2009
Buck Engineering
0

' 6 References
Bunte, K. and S. Abt. 2001. Sampling surface and subsurface particle-size distributions
in wadable gravel- and cobble-bed streams for analyses in sediment transport,
hydraulics, and streambed monitoring. Gen. Tech. Rep. RMRS-GTR-74. Fort
Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain
Research Station. 428 p.
Giese, G.L., Mason, Robert R. Jr. 1993. Low-Flow Characteristics of Stream in North
' Carolina. USGS Water-Supply Paper 2403. 29 p.
Harman, W.A., G.D. Jennings, J.M. Patterson, D.R. Clinton, L.O. Slate, A.G. Jessup, J.R.
Everhart, and R.E. Smith. 1999. Bankfull Hydraulic Geometry Relationships for
North Carolina Streams. Wildland Hydrology. AWRA Symposium Proceedings.
Edited by: D.S. Olsen and J.P. Potyondy. American Water Resources Association.
June 30-July 2, 1999. Bozeman, MT.
Neitsch, S.L., Arnold, J.G., Kiniry, J.R., Williams, J.R., King, K.W. 2002. Soil and
' Water Assessment Tool Theoretical Documentation: Version 2000. Texas Water
Resources Institute, College Station, Texas. GSWRL Report 02-01.
' North Carolina Division of Water Quality, 2003. Yadkin-Pee Dee River
Final Basinwide Water Quality Plan, Raleigh, NC.
S President's Council on Environmental Quality. CEQ Guidance "Considering Cumulative
Effects Under the National Environmental Policy Act." 1997.
Rosgen, D.L. 1996. Applied River Morphology. Wildland Hydrology Books, Pagosa
Springs, CO.
0

u
' ICI Quantitative Assessment 35 Buck Engineering
for R-2246 and U-2009

C

0

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APPENDIX B

Appendix B - Sediment Analysis
Afton Run at Dogwood
Riffle Grab Sample Analysis
100
90
0 80
c 70
d
60
a 50
d
40
R
30
V 20.
10
0
-&- Reach Total
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm)
D50 = 0.49mm
Afton Run at NC 73
Riffle Grab Sample Analysis
100
90
0 80
E 70
0)
W 60
o. 50
N
40
ea
30
V 20
10
0
-&-- Reach Total I I
0.062 0.125 0.25 0.5 1 1.4 2 4.75
Particle Size - Finer Than (mm)
6.3 12.5 16
D50 = 1.01 mm
Appendix B (Pagel)
i
i
i
i
Afton Run at Poplar Tent Rd
Pebble Count Data
100- 0000099699
90
80-
70-
60-
CL Riffle
50
40
ea
= 30
V 20
10
0
N LO r t 00 Co N t 00 0 N 00
O N r CO O N O O
O N
O
Particle Size - Finer Than (mm)
Afton Run at Poplar Tent Rd
Pebble Count Data
35
30 f .
25
20 ® Class Percent
n. -?-Cumulative Percent
N 15-
10-
5-
0 CM LO CD N O O O O M C\I C ( 0 N !O r q 00
O r Op CO ?- N O O C\I
v O O O I- ' O LO O O N '
7 N O r N O 00 M N
?- O
T
Particle Size Class (mm)
100
90
80 d
70
60 0-
50 > c
40 L"a U.
30
20 U
10
0
Appendix B (Page 2)
Afton Run at Trinity Church Rd
Riff le Grab Sample Analysis
100
90
80
70
d
60
a 50
a?
40
ea
3 30
20
V 10
0
-6 Reach Total I I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3
Particle Size - Finer Than (mm)
12.5 16
1 D50 = 0.46mm
Afton Run at Trinity Church Rd
Pool Grab Sample Analysis
100
90
80
aCi 70
d 60
a 50
d
40
30
E 20
U 10
0
--&-- Reach Total f 1
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm)
Appendix B (Page 3)
Coddle Creek at Archer Road USGS Station
Riffle Grab Sample Analysis
100
90
00
80
d 70
60
CL 50
d
40
30
E 20
U 10
0
--&--° Reach Total I I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5
Particle Size - Finer Than (mm)
16
D50 = 0.87mm
Coddle Creek at NC 29
Riffle Grab Sample Analysis
100
90
80
E 70
a?
i 60
IL 50
d
40
30
?j 20
10
0
--A-- Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3
Particle Size - Finer Than (mm)
12.5 16
D50 = 0.95mm
Appendix B (Page 4)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Coddle Creek at Patterson Farm Rd
Riffle Grab Sample Analysis
100
80
70
60
CL 50
d
40
30
20
V 10
0
90
0.062 0.125 0.25 0.50 1.0 1.4 2.0 4.8
Particle Size - Finer Than (mm)
-A Reach Total I
Coddle Creek at Poplar Tent Rd
Riffle Grab Sample Analysis
100
90
6.3 12.5 16.0
D50 = 0.98mm
0-0 80
d 70
y 60
a 50
40
ea
30
= 20
v 10
0
-&-- Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3
Particle Size - Finer Than (mm)
12.5 16
D50 = 0.77mm
Appendix B (Page 5)
1
1
1
1
1
Coddle Creek at Poplar Tent Road
Pool Grab Sample Analysis
100
OR 80
70
60
°- 50
d
40
3 30
E 20
v 10
0
90
--Ar- Reach Totaf I i
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm)
Coddle Creek at Teeter Rd
Riffle Grab Sample Analysis
100
0-0 80
d 70
60
CL 50
40
R
5 30
£ 20
V 10
0
90
--- Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75
Particle Size - Finer Than (mm)
6.3 12.5 16
D50 = 1.48mm
Appendix B (Page 6)

Un-named Tributary to Coddle Creek at Enochville
Riffle Grab Sample Analysis
100
90
80
70
60
d
aD 50
a
40
30
= 20
U
10
0
-A- Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3
Particle Size - Finer Than (mm)
12.5 16
D50 = 0.71 mm
Un-named Tributary to Coddle Creek at NC 49
Riffle Grab Sample Analysis
100
. 90
80
70
a?
60
a 50
40
ca
30
0 20
v 10
0
-6- Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3
Particle Size - Finer Than (mm)
12.5 16
D50 = 4.52mm
Appendix B (Page 7)

Un-named Tributary to Coddle Creek at NC 49
Riffle Pebble Count
100
go-
80-
70-
-
CL 60 -*- Reach Total
d 50
40
;..
2 30
E 20
V 10
0
N LO ? OD CO N It w Cfl N OD
CO N r CO CO N Ln +- If'
O C7 r N LO N
O
Particle Size - Finer Than (mm)
Un-named Tributary to Coddle Creek at NC 49
Riffle Pebble Count
16 100
14 90 a)

12 80 LL
=
i
10
Class Percent 70
60
L
CLs 8 Cumulative Percent 50 a
,Nn 6 40 >

?j
4 30 S

2 20 Z
10 v
0 0

CNO 00 (0
N O O O O CO c`ro N U')
r
O CO
p
v r N Ln
LO O O rl ' C4 LO O O N
CO
?? O
N
T
N Ln
N O CO M N
r O
r-
Particle Size Class (mm)
Appendix B (Page 8)
1
1
1
1
1
1
1
Un-named Tributary to Coddle Creek at Longbriar
Riffle Grab Sample Analysis
100
10
80
5 70
i 60
a 50
m
40
ea
30
S 20
U 10
0
90
Reach Total I 1
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3
Particle Size - Finer Than (mm)
12.5 16
D50 = 1.47mm
East Fork Coddle Creek at Unity Church Rd
Riffle Grab Sample Analysis
100
90
0-0
80
70
60
50
40
ea
5 30
£ 20
v 10
0
--6-- Reach Total I I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3
Particle Size - Finer Than (mm)
12.5 16
D50=1.53 MM
Appendix B (Page 9)
Irish Buffalo at NC 73
Riffle Grab Sample Analysis
100
90
80
70
60
50
40
3 30
20
v 10
0
-a Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75
Particle Size - Finer Than (mm)
Irish Buffalo Creek at Mooresville Road
Riffle Grab Sample Analysis
100
90
6.3 12.5 16
D50 = 1.46mm
0-0
80
70
60
a 50
d
40
?a
30
= 20
v 10
0
-A- Reach Total I I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm) D50 = 1.66mm
Appendix B (Page 10)

Irish Buffalo at Saw Rd
Riffle Grab Sample Analysis
100
90
80
d 70
60
CL 50
40
R
30
E 20
10
0
-6-- Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75
Particle Size - Finer Than (mm)
Un-named Tributary to Irish Buffalo at the end of Azelea Ave
Riffle Grab Sample Analysis
100
90
6.3 12.5 16
D50 = 1.33mm
80
70
y 60
a 50
40
30
3 20
V 10
0
-A- Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm) D50 = 1.65mm
Appendix B (Page 11)

100
80
70
60
50
a?
40
30
20
U 10
0
Un-named Tributary to Irish Buffalo at the end of Azelea Ave
Pool Grab Sample Analysis
90
- 6 - Reach Total I I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm)
Un-named Tributary to Irish Buffalo at Oakwood Rd.
Riffle Grab Sample Analysis
100
90
OR 80
d 70
y 60
a 50
40
30
E 20
10
0
--4- Reach Total
0.062 0.125 0.25 0.5 1 1.4 2 4.75
Particle Size - Finer Than (mm)
6.3 12.5 16
D50 = 1.60mm
Appendix B (Page 12)

Un-named Tributary to Irish Buffalo at Oakwood Dr.
Pool Grab Sample Analysis
100
80
70
y 60
50
40
cts
30
3 20
v 10
0
90
---&- Reach Total
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm)
Mill Creek at Mooresville Road
Riffle Grab Sample Analysis
100
90
80
70-
-
560
0 - - Reach Totai
a 40
ea
30
0 20
V 10
0- F
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm)
D50 = 1.31 mm
Appendix B (Page 13)
Mill Creek at Smith Rd
Riffle Pebble Count
100
90
80
70
CL 60 --?- Riffle
50
40
30
E 20
ci 10
0
N LO r d' 00 C4 N 00 Co N 00
c0 N r CO C0 N LO r cT
O 0 •- N LO N
O
Particle Size - Finer Than (mm)
Mill Creek at Smith Rd
Riffle Pebble Count
18 100
16 90
L
14 80 c
LL
c 12 70 c
4)
10
® Class Percent
60 4)
0.
8 Cumulative Percent 50 a
N 40
R
6
V 30
4 E
- 20
2 U
10
0 0

N C0 N O O O O M C l 0 N 00 (0 LO N It 00
r d 00 C
O
O T
r N L O O
v LO O O rI ' (0 LO O O N '
T N Ln r N 0) 00
N
N
r O
T
Particle Size Class (mm)
Appendix B (Page 14)
1
1
1
1
1
1
Mill Creek at Stirewalt Rd
Riffle Grab Sample Analysis
100

90
^
80

70

60-

a 50-
ch Total

40-
;.
cc
5 30
V 20

10

0
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm)
D50 = 1.29mm
Mill Creek at Wright Rd.
Riffle Grab Sample Analysis
100
90
80
c 70
G1
60
d
a 50
40
30
?j 20
10
0
-6-- Reach Total I I
0.062 0.125 0.25 0.5 1 1.4 2 4.75
Particle Size - Finer Than (mm)
6.3 12.5 16
D50 = 1.61 mm
Appendix B (Page 15)
Un-named Tributary to Mill Creek at Drakestone Rd
Riffle Grab Sample Analysis
100
90
80
70
60
IL 50
d
w 40
R
5 30
20
U
-&- Reach Total
10
0
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm) D50 = 0.53mm
Park Creek at Plum Rd
Riffle Grab Sample Analysis
100
90
80
70
d
60
IL 50
W
40
30
20
v 10
0
- & Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3
Particle Size - Finer Than (mm)
12.5 16
D50 = 0.8 M
Appendix B (Page 16)
Park Creek at Plum Rd
Pool Grab Sample Analysis
100-
90-
.,o 80
c 70
m
a 60 -&-- Reach Total
50
40
£ 30
ci 20
10
0
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm)
Park Creek at Smith Rd
Riffle Grab Sample Analysis
100
90
0 80
c 70
d
60
a 50
d
40
R
30
V 20
10
0
--6-- Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm) D50 = 1.32mm
Appendix B (Page 17)
Park Creek at Wright Road
Riffle Grab Sample Analysis
100
90
80
c 70
d
60
d
°- 50
d
40
30
?j 20
10
0
- Reach Total
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm)
D50 = 1.66mm
Wolf Meadow Branch at Roberta Rd
Riffle Pebble Count
100-
Bo-
iffle
60-
(D
a 40
20
E
3 0
U (D N ct 00 O M ( N LO r It
Q O r N to O
O N
Particle Size - Finer Than (mm)
Appendix B (Page 18)
Wolf Meadow Branch at Roberta Road
Riff le Pebble Count
14 100
12 90
_ 80
ii
= 10
a
i
L Class Percent
a,
a $ -+-Cumulative Percent a
6-
- -40
4 30
U
2 20
E

0 10
0 =
v

p N O O O O M (0 N
T ?t 00 Cfl LO (0 N r ?

v T
to O O ' O LO
N LO N ?ci M N rn N LO O
,
000 CNO Nr
T
T T CO N
p
T
Particle Size Class (mm)
Appendix B (Page 19)

11

1

u

APPENDIX C

•? ? ?' fi'n' t'. Vi. ..f -
i
?

`
?
hip-
+?• , ;rte x ..
ALI _ a
Afton Run @ Dogwood Rd - Looking Downstream Afton Run @ Dogwood Rd - Right Bank
- i.
b

Afton Run @ Dogwood Rd below culvert Afton Run @ Dogwood Rd- Left Bank
' A .. vG 1AJ ? 1'•.
`` r

Afton Run (tt Hwy 73 - Left Bank Afton Run @ Hwy 73 - Looking Downstream

Afton Run @ Hwy 73 - Right Bank
Afton Run @ Poplar Tent - Left Bank
Afton Run C Trinity Church Rd - Pool Looking
Downstream
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Coddle Ck @ Archer Rd USGS - Right Bank
Coddle Ck @ Hwy 29 - Looking Downstream
Coddle Ck @ Patterson Farm Rd - Looking Downstream
Coddle Ck @ Hwy 29 - Left Bank
Coddle Ck @ Patterson Farm Rd - Left Bank
Coddle Ck @ Hwy 29 - Right Bank
Coddle Ck @ Patterson Farm Rd - Looking Upstream
Coddle Ck @ Poplar Tent Pool Right Bank
Coddle Ck @ Poplar Tent Pool - Left bank
Coddle Ck (a), Patterson Farm Rd - Right Bank
Coddle Ck @ Poplar Tent Pool - Looking Downstream
Coddle Ck @ Poplar Tent Riffle - Left Bank
Coddle Ck @ Poplar Tent Pool - Looking Upstream
Coddle Ck @ Teeter Rd - Looking Upstream
Coddle Ck @ Poplar Tent Riffle - Looking DS
Coddle Ck @ Teeter Rd - Looking Downstream
Coddle Ck @ Teeter Rd - Right Bank
Coddle Ck @ Teeter Rd - Left Bank
Coddle Ck's Unnamed Trib @ Enochville Rd - Taken from
Left Bank
Coddle Ck's Unnamed Trib @ Hwy 29 Photo 3
Coddle Ck's Unnamed Trib @ Hwy 49 - Left Bank
Coddle Ck's Unnamed Trib cd Hwy 29 Photo 2
Coddle Ck's Unnamed Trib @ Hwy 29
Coddle Ck's Unnamed Trib @ Hwy 49 - Looking
Downstream
Coddle Ck's Unnamed Trib @ Hwy 49 - Riffle 100 feet
upstream from survey
Coddle Ck's Unnamed Trib @ Longbriar - Looking
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East Fork Coddle Ck @ Unity Ch Rd - Looking
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Coddle Ck's Unnamed Trib @ Longbriar - Looking
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East Fork Coddle Ck @ Unity Ch Rd - Left Bank
East Fork Coddle Ck @ Unity Ch Rd - Right Bank

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Irish Buffalo Ck a Hwy 73 - Riffle Right Bank
Irish Buffalo Ck @ Hwy 73 Pool - Looking Downstream
Irish Buffalo Ck @ Hwy 73 Riffle - Left Bank
Irish Buffalo Ck @ Hwy 73 Pool - Left Bank
Irish Buffalo Ck @ Hwy 73 Pool - Right Bank
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Mill Ck @ Mooresville Rd - Looking Downstream
Irish Buffalo Ck's Unnamed Trib @ Oakwood Rd - Riffle
Looking Downstream
Mill Ck @ Mooresville Rd - Left Bank
Mill Ck @ Mooresville Rd - Right Bank
Mill Ck @ Stirewalt - Looking Upstream
Mill Ck @ Stirewalt - Riffle Looking Downstream
Mill Ck @ Stirewalt - Right Bank
Mill Ck @ Wright Rd - Looking Downstream
Mill Ck @ Stirewalt - Left Bank
Mill Ck @ Wright Rd - Left Bank
Mill Ck @ Wright Rd - Right Bank
Mill Ck's Unnamed Trib@ Drakestone - Looking DS from
Riffle
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Park Ck @ Plum Rd - Left Bank
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Wolf Meadow Branch @ Roberta Rd -Right Bank ( Wolf Meadow Branch (ci Roberta Rd - Looking
Downstream
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FILE COPY
1 Ff
® North Carolina Wildlife Resources Commission
Charles R. Fullwood, Executive Director
TO: Steve W. Lund, DOT Coordinator
Asheville Regulatory Field Office, USACE
FROM: Marla Chambers, Highway Projects Coordinator
Habitat Conservation Program, NCWRC
DATE: September 18, 2003
SUBJECT: Review of a Section 404 Permit application by NCDOT for the proposed
widening of SR 1430 (Crisco Road) from SR 1431 (Weddington Road) to SR
1555 (Grand Canyon Road), Cabarrus County.1
North Carolina Department of Transportation (NCDOT) has submitted an application to
obtain a Section 404 Individual Permit from the U.S. Army Corps of Engineers (USACE). A
staff biologist with the North Carolina Wildlife Resources Commission (NCWRC) visited the
site on September 16, 2003 and reviewed the information provided, including two indirect and
cumulative impact study documents. These comments are provided in accordance with the
provisions of the National Environmental Policy Act (42 U.S.C. 4332(2)(c)) and the Fish and
Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.C. 661-667d).
The NCDOT proposes to widen the existing two-lane SR 1430 (Crisco Road) from SR
1431 (Weddington Road) to SR 1555 (Grand Canyon Road) to a four-lane divided roadway that
transitions to five lanes with curb and gutter closer to SR 1555. The site visit revealed that
Crisco Road has been renamed George W. Liles Parkway in the project area. This project is part
of the larger Concord-Kannapolis Westside Bypass Extension (TIP No. R-2246), which is a
continuation of the Kannapolis Westside Bypass (TIP No. U-2009). Together these two projects,
hereafter referred to as the Westside Bypass, extend from NC 49 at the southern terminus to SR
1616 (Tuckaseegee Road) at the northern terminus. Future extension of the bypass to the north
into Rowan County is anticipated. The SR 1555 widening project (Section C) is approximately
one mile in length, while the Westside Bypass length is 13.3 miles.
The Section C project will permanently impact three wetlands totaling 0.24 acres and
three perennial streams totaling 359.2 linear feet. All stream impacts are to unnamed tributaries
Mailing Address: Division of Inland Fisheries • 1721 Mail Service Center • Raleigh, NC 27699-1721
Telephone: [phone] ext. 281 0 Fax: [phone]
dr 10
SR 1430 of Westside Bypass
UT's to Coddle Creek, Cabarrus Co. 2 September 18, 2003
io ?o O dl61r elc. =?Jpstream of the Section C project, Coddle Creek is impounded as a water
'supply reservoir for Cabarrus County and Kannapolis and adjacent to the project area, it is Class
C waters and on the Section 303(d) list of impaired waters due to sedimentation. The Carolina
darter (Etheostoma collis), Federal Species of Concern and state Special Concern, inhabits
Coddle Creek near the project and throughout the Coddle Creek watershed in the vicinity of the
proposed Westside Bypass. Coddle Creek discharges to Rocky River, which is also on the
Section 303(d) list, according to information provided.
Indirect and cumulative impacts were assessed for the proposed Westside Bypass in two
documents, "Final Indirect and Cumulative Impact Assessment" (July 2003) and "Indirect and
Cumulative Impact Study, Qualitative Assessment of Sediment and Nutrients" (August 2003).
One of the studies pointed out that Cabarrus County is one of the fastest growing counties in
North Carolina and the Westside Bypass is proposed in an area of high growth, within 20 miles
of the Charlotte/Mecklenburg regional employment center (the state's largest) and within 5 miles
of the urban centers of Kannapolis, Concord and Harrisburg. Developable land and sewer and/or
water services are available throughout the study area. It was determined that the likelihood for
the project to induce growth and affect changes in land use that could impact resources in the
study area is high.
Indirect and cumulative impacts are expected in the Coddle Creek and Irish Buffalo
Creek watersheds. Existing land use was characterized as rural, low-density uses intensifying
with development. Segments of the proposed Westside Bypass and adjacent sections of the
intersecting roads were evaluated for the potential for project-induced land use changes
compared to the No-Build scenario. Much of the study area was expected to attain or approach
build-out conditions by the year 2015. The study indicated the Westside Bypass will likely have
the effect of inducing an accelerated rate of growth within the study area and, in many cases,
effect the type of development (commercial/industrial vs. residential) and/or density.
Results of the analysis suggest construction of the Westside Bypass will result in an
increase in sediment of 7%, an increase in total nitrogen of 5.3% and an increase in total
phosphorus loading of 7.4% as compared to the No-Build option. The differences were
considered small compared to the predicted difference between current conditions and estimated
future conditions. Most of the increase in total nitrogen and phosphorus was attainable to
increase in flows. Increased impervious surface from development and the Bypass itself is
expected to increase stream flow below the project by an average of 4.7%. A significant increase
in the sediment load of more than 30% is expected in the watershed with or without the Bypass
as a result of ongoing development. Forty percent of the stream reaches surveyed for the study
were incised. Results of the study confirm that streambank instability is a major water quality
concern for the basin and suggest that without intensive stream restoration efforts in the Coddle
Creek watershed, sediment impairment will continue.
The most comprehensive development controls protecting the water resources of the
study area are in the Unified Development Ordinance (UDO) that has been adopted by Cabarrus
County and the Cities of Kannapolis, Concord and Harrisburg. The UDO includes a 50-foot
minimum buffer on either side of perennial streams identified as blue lines on USGS 1:24,000
scale maps and limits development densities within certain watershed districts. One of the

SR 1430 of Westside Bypass
UT's to Coddle Creek, Cabarrus Co. 3 September 18, 2003
reports suggests while it appears sufficient land use controls and regulations are in place to, if
properly enforced, avoid and minimize impacts to water quality, it may be necessary to revise
zoning regulations to further minimize cumulative environmental impacts. Study
recommendations include a joint effort between Cabarrus County, Kannapolis and NC Division
of Water Quality (NCDWQ) to address sediment and nutrient loading from development, use of
best management practices, and that the Coddle Creek watershed be targeted for buffer
acquisition and stream restoration.
The NCWRC is concerned about negative impacts to the fish and wildlife resources and
water quality in the subject watersheds due to expected development and the proposed Westside
Bypass. We recommend governing bodies with jurisdiction over development in the Bypass
impact area strictly enforce existing regulations and work with NCDWQ and others to improve
and protect water quality and wildlife habitat. Low impact development techniques are
recommended to manage stormwater quantity and quality in the watershed (see
www.lowimpactdevelopment.org for information). Stream restoration and buffer protection and
restoration efforts should be strongly pursued in the Coddle Creek and Irish Buffalo Creek
watersheds. NCDOT should provide mitigation for all impacts associated with the Bypass, and
mitigation efforts should be concentrated in these watersheds.
NCDOT proposes partial access control for the project, except for the US 29 interchange,
which will have full control of access. Partial access control allows each property abutting the
right-of-way to be permitted access to the road, however, the location, number and geometrics of
the access points may be governed by driveway and approach regulations. We request NCDOT
determine if the level of service (LOS) and safety of the proposed Westside Bypass will be at
acceptable levels after build-out conditions occur. We cannot concur with any portion of the
Westside Bypass if traffic conditions and accident rates from numerous access points and dense
development will result in the need for an additional bypass to avoid unacceptable conditions on
the Westside Bypass within the next 15 to 20 years. This would promote urban sprawl and lead
to additional negative impacts to the natural and human environments in a relatively short time
frame. We recommend NCDOT investigate the potential of more restrictive control of access,
including full control of access on new location sections of the Bypass, to reduce accelerated
growth expected from the roadway and extend the time period of acceptable LOS.
In addition to the above recommendations, the following conditions should be
incorporated into the permit, if issued:
Sediment and erosion control measures shall adhere to the design standards for sensitive
io 3.3Cd watersheds (15A NCAC 4B .0124 (a)-(d)) and be strictly maintained until project
completion to avoid impacts to downstream aquatic resources. Temporary or permanent
herbaceous vegetation should be planted on all bare soil within 10 days of ground
disturbing activities to provide long-term erosion control. Tall fescue should not be used
in riparian areas. We encourage NCDOT to utilize onsite vegetation and materials for
streambank stabilization when practicable. Erosion control matting should be used in
riparian areas, instead of straw mulch.
2. Culverts that are less than 48-inch diameter should have the floor of the barrel installed
20% of the diameter of the culvert below the level of the stream bottom. Culverts that are

SR 1430 of Westside Bypass
UT's to Coddle Creek, Cabarrus Co. 4 September 18, 2003
48-inch diameter or larger should be placed with the floor of the barrel approximately 12
inches below the stream bottom to allow natural stream bottom materials to become
established in the culvert following installation and to provide aquatic life passage during
periods of low flow. This may require increasing the size of the culvert to meet flow
conveyance requirements. These measurements must be based on natural thalweg
depths. Any perched outlets should be corrected during construction.
3. The natural dimension, pattern, and profile of the stream above and below the culverts
should not be modified by widening the stream channel or changing the depth of the
stream.
4. Removal of vegetation in riparian areas should be minimized. Native trees and shrubs
should be planted along the stream banks to reestablish the riparian zone and to provide
long-term erosion control.
5. Grading and backfilling should be minimized, and tree and shrub growth should be
retained if possible to ensure long term availability of shoreline cover for fish and
wildlife. Backfill materials should be obtained from upland sites.
6. Riprap should be minimized and installed in a manner so as not to interfere with aquatic
life passage during low flow conditions. Riprap placed for bank stabilization should be
limited to the stream bank below the high water mark, and vegetation should be used for
stabilization above the high water elevation.
7. Excavation of the stream crossings should be conducted in the dry, if possible. Sandbags,
cofferdams, flexible pipe, or other diversion structures should be used to minimize
excavation in flowing water.
8. Rock check dams at culvert outlets should be removed at project completion. These
structures could impede movement of aquatic life.
9. Stormwater management and pre-treatment should be maximized. Stormwater should be
directed to buffer areas or retention basins and should not be routed directly into streams.
Alternatives to curb and gutter should be explored.
10. If concrete will be used during construction, work must be accomplished so that wet
(uncured) concrete does not contact surface waters. This will lessen the chance of
altering the water chemistry and causing a fish kill.
11. Discharging hydroseeding mixtures and washing out hydroseeders and other equipment
in or adjacent to surface waters is strictly prohibited.
12. Heavy equipment should be operated from the bank rather than in the stream channel
whenever possible in order to minimize sedimentation and reduce the likelihood of
introducing other pollutants into the stream. All mechanized equipment operated near
00-
SR 1430 of Westside Bypass
UT's to Coddle Creek, Cabarrus Co. 5 September 18, 2003
surface waters should be inspected and maintained regularly to prevent contamination of
stream waters from fuels, lubricants, hydraulic fluids or other toxic materials.
Thank you for the opportunity review and comment on this project. If you have any
questions regarding these comments, please contact me at [phone].
cc: Marella Buncick, USFWS
Cynthia Van Der Wiele, NCDWQ
Sarah McRae, NCNBP
_4?°
FILE COPY
STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
MICHAEL F. EASLEY
GOVERNOR
July 18, 2003
U. S. Army Corps of Engineers
Regulatory Field Office
151 Patton Avenue, Room 208
Asheville, NC 28801-5006
ATTN:Mr. Steve Lund
NCDOT Coordinator
Dear Sir:
LYNDo TIPPETT
SECRETARY
I1A1p
*510
JUl X 0 2uo3
QUAU??
030845.
Subject: Nationwide 14 and 33 Permit Application for the widening of SR 1430
(Crisco Road) from SR 1431 (Weddington Road) to SR 1555 (Grand Canyon
Road), Cabarrus County, Federal Aid Project STP-OOOS(46), State Project No.
8.2661601, T.I.P. No. R-2246 C. $475.00 Debit work order 8.2661601, WBS
Element 34408. 1.1
The North Carolina Department of Transportation (NCDOT) proposes to widen SR
1430 in Cabarrus County from existing two-lane facility south of SR 1555 (Grand Canyon
Road) to SR 1431 (Weddington Road). The project is approximately 1.0 miles in length
and will provide a four-lane divided roadway that transitions to five lanes with curb and
gutter closer to Grand Canyon Road. Improvements will also include extending three
culverts over three separate unnamed tributaries to Coddle Creek. The project will not
impact any Designated Wild and Scenic Rivers or any rivers included in the list of study
rivers (Public Law 90-542, as amended). There are three small jurisdictional wetland sites
impacted by the project and three jurisdictional streams. The NEPA documents prepared
for this project addresses R-2246 A and B, as well as C described below.
1
Summary of Impacts: There will be a total 0.24 acres of 12 ermanent wetland
impacts which consist of 0.23 acres of fill and 0.01 acres of mechanized clearing and
grubbing at three separate sites (Sheet 8 of 8). There are also 359.2 linear feet of impacts
to surface water associated with this project. The impacts occur at three separate streams,
each being less than 150 feet.
Summary of Mitigation: The project has been designed to avoid and minimize
impacts to the wetlands to the greatest extent possible. However at Site 1, permanent
impacts are greater than 0.10 acres and mitigation is required.
MAILING ADDRESS: TELEPHONE: [phone] LOCATION:
NC DEPARTMENT OF TRANSPORTATION FAX: [phone] TRANSPORTATION BUILDING
ROJECT DEVELOPMENT AND ENVIRONMENTAL ANALYSIS 1 SOUTH WILMINGTON STREET
1548 MAIL SERVICE CENTER WEBSITE: WWW.NCDOT.ORG RALEIGH NC
RALEIGH NC 27699-1548
r-TI
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NEPA DOCUMENT STATUS
An Environmental Assessment (EA) was submitted by the NCDOT in compliance
with the National Environmental Policy Act. The EA was approved on September 27,
1996. A Finding of No Significant Impact (FONSI) was approved on February 25, 1999.
The document addressed R-2246, the Concord-Kannapolis Westside Bypass Extension
from NC 49 to I-85, approximately 6.5 miles long. The EA explains the purpose and
need for the project; provides a description of the alternatives considered; and
characterizes the social, economic, and environmental effects. After the EA was
approved it was circulated to federal state and local agencies. Copies of the EA and
FONSI have been provided to regulatory review agencies involved in the approval
process. Additional copies will be provided upon request.
R-2246 C is in compliance with 23 CFR Part 771.111(f) which lists the FHWA
characteristics of independent utility of a project:
(1) The project connects logical termini and is of sufficient length to address
environmental matters on a broad scope;
(2) The project is usable and a reasonable expenditure, even if no additional
transportation improvements are made in the area;
(3) The project does not restrict consideration of alternatives for other reasonably
foreseeable transportation improvements.
INDIRECT AND CUMULATIVE EFFECTS
R-2246 C is within 1.0 mile of Coddle Creek, which is listed on North Carolina's
303(d) list. Coddle Creek was listed because of sediment, and potential sources are urban
runoff and storm water. This project has the potential to adversely impact Coddle Creek.
The Indirect and Cumulative Assessment for Future Development Report is currently,
being prepared. It is estimated this document will be complete within thirty days.
RESOURCE STATUS
Wetland delineations: wetland delineations were conducted by Mr. Jeff Burleson
in August 2001 using the criteria specified in the 1987 Corps of Engineers Wetland
Delineation Manual. The attached permit application package consists of drawings
depicting jurisdictional impacts. As previously mentioned, there will be a total 0.24 acres
of permanent wetland impacts that consist of 0.23 acres of fill and 0.01 acres of
mechanized clearing and grubbing at three separate sites (Sheet 8 of 8). Table 1 depicts
these impacts.
(1) Site 1 is immediately adjacent to and upstream of Crisco Road and drains into
an unnamed tributary to Coddle Creek, a perennial stream with Class C waters.
The wetland has poorly drained, clay loam soils. The dominant vegetation is a
rush (Juncus sp.), a sedge (Carax sp.), and fescue (Festuca sp.).
2

(2) Site 2 is approximately 150 feet downstream of Crisco Road and also drains
into Coddle Creek. The wetland has poorly drained, clay loam soils. The
dominant vegetation is green ash (Fraxinus americana), common elderberry
(Sambucus canadensis), and netted chain fern (Woodwardia areolata).
(3) Site 3 is approximately 150 feet downstream of Crisco Road and also drains
into Coddle Creek. The wetland has poorly drained, clay loam soils. The
dominant vegetation is red maple (Acer rubrum), American elm (Ulmus
americana), and rush (Juncus sp.)
TABLE 1. WETLAND IMPACTS ON R-2246 C
Site Station Structure Permanent
Wetland
Impacts
(ac)*
1 16+00-L- RCBC 0.21
2 21+10-L- Pipe 0.006
3 23+75-L- RCBC 0.015
TOTAL 0.241
* Includes fill, and mechanized clearing.
Surface Water Impacts: As stated above, there are three crossings of three separate
jurisdictional streams.
Permanent Impacts: There will be permanent and temporary impacts, with a
cumulative impact is 359.2 feet. The attached permit application package consists of
drawings depicting jurisdictional impacts. Table 2 depicts these impacts.
TABLE 2. SURFACE WATER IMPACTS ON R-2246 C
Site Station Structure Permanent
SW Impacts
(ac) Permanent
SW Impacts
(ft)
1 16+00-L- RCBC 0.015 138.8
2 21+10-L- Pipe 0.0047 112.5
3 23+75-L- RCBC 0.0148 107.9
TOTAL 0.0345 359.2
Temporary Impacts: No causeway will be needed for the construction of the
culverts; therefore, no temporary fill in waters of the unnamed tributaries to Coddle Creek
will be required. However, there will be temporary impacts from the dewatering
required to construct the culverts.
3
Three stream impacts will occur due to culvert constructions. With the addition of lanes
due to widening, culvert improvements are unavoidable. The Construction Sequence for
box culverts for R-2246 C, site 3 is as follows: install rock silt screen, construct stilling
basin (min. capacity = 107 cu. m.), construct diversion channel, construct impervious
dykes, remove existing 1350 mm. pipe, construct proposed culvert, remove impervious
dykes, construct proposed road, and remove all erosion control devices. The construction
sequence for site 1 is the same with these exceptions: the stilling basin minimum capacity
is 125 cu. m., and the existing pipe is 1800 mm.
The portion of the rock used for the construction of the impervious dykes and
erosion control methods, which results in temporary surface water fill, will be removed
after its purpose has been served. Any rock placed in or near the natural channel will be
removed and pulled back, out of the natural channel.
After the temporary diversion methods are no longer needed, the contractor will use
excavating equipment to remove the portion of the diversion within the stream channel.
ENDANGERED SPECIES
Plants and animals with Federal classification of Endangered (E) or Threatened
(T) are protected under provisions of Section 7 and Section 9 of the Endangered Species
Act of 1973, as amended. As of January 29, 2003, the U.S. Fish and Wildlife Service
(Service) lists two federally protected species for Cabarrus County (Table 3).
Table 3. Federally Protected Species for Cabarrus County
SCIENTIFIC NAME COMMON NAME STATUS
Lasmigona decorata Carolina heelsplitter E*
Helianthus schweinitzii Schweinitz's sunflower E
"B" denotes Endangered (a species that is in danger of extinction throughout all or a significant
portion of its range).
*Obscure record - the date and/or location of observation is uncertain.
A biological conclusion of "No Effect" was reached for the Carolina heelsplitter
and Schweinitz's sunflower based on a survey by NCDOT biologists of on-site habitat.
The results of the October 27-28, 1998 survey indicate that there is no habitat for the
Carolina heelsplitter and that there will be no effect on this species. Because of the
elapsed time between the previous survey and present date, an additional survey will need
to be conducted before construction begins.
4

MITIGATION OPTIONS
The Corps of Engineers had adopted, through the Council on Environmental
Quality (CEQ), a wetland mitigation policy that embraces the concept of "no net loss of
wetlands" and sequencing. The purpose of this policy is to restore and maintain the
chemical, biological, and physical integrity of the Waters of the United States.
Mitigation of wetland and surface water impacts has been defined by the CEQ to include:
avoiding impacts, minimizing impacts, rectifying impacts, reducing impacts over time
and compensating for impacts (40 CFR 1508.20). Executive Order 11990 (Protection of
Wetlands) and Department of Transportation Order 5660.1A (Preservation of the Nations
Wetlands), emphasize protection of the functions and values provided by wetlands.
These directives require that new construction in wetlands be avoided as much as
possible and that all practicable measures are taken to minimize or mitigate impacts to
wetlands.
AVOIDANCE AND MINIMIZATION: The NCDOT is committed to
incorporating all reasonable and practicable design features to avoid and minimize
jurisdictional impacts, and to provide full compensatory mitigation of all remaining,
unavoidable jurisdictional impacts. Avoidance measures were taken during the planning
and NEPA compliance stages; minimization measures were incorporated as part of the
project design.
1. Staging Area: No staging of construction equipment or storage of construction
supplies will be allowed in wetlands or near surface waters.
2. Slopes: Fill slopes in wetlands are at a 2:1 ratio.
3. Best Management Practices: Strict enforcement of sedimentation and erosion control
Best Management Practices (BMP) for the protection of surface waters and wetlands
will be enforced.
4. Culvert Construction: All pipes and culverts will be buried; 1 foot for reinforced
concrete box culverts and 20% for pipes.
A 6 to 12 inch high concrete wall will be placed at the upstream side of the multiple
barrel culvert to divert the stream's normal flow into a single barrel. The goal is to
maintain a similar depth and velocity of water as it exists in the existing channel.
During larger storm events, the sill is overtopped and all of the culverts are utilized to
convey water.
COMPENSATION: The primary emphasis of the compensatory mitigation is to
reestablish a condition that would have existed if the project were not built. As
previously stated, mitigation is limited to reasonable expenditures and practicable
considerations related to highway operation. Mitigation is generally accomplished
through a combination of methods designed to replace wetland functions and values lost
as a result of construction of the project. These methods consist of creation of new
wetlands from uplands, borrow pits, and other non-wetland areas; restoration of wetlands;
and enhancement of existing wetlands. Where such options may not be available, or
when existing wetlands and wetland-surface water complexes are considered to be
important resources worthy of preservation, consideration is given to preservation as at
least one component of a compensatory mitigation proposal.
FHWA STEP DOWN COMPLIANCE: All compensatory mitigation must be in
compliance with 23 CFR Part 777.9, "Mitigation of Impacts" that describes the actions
that should be followed to qualify for Federal-aid highway funding. This process is
known as the FHWA "Step Down" procedures:
1. Consideration must be given to mitigation within the right-of-way and should
include the enhancement of existing wetlands and the creation of new wetlands in.
the highway median, borrow pit areas, interchange areas and along the roadside.
2. Where mitigation within the right-of-way does not fully offset wetland losses,
compensatory mitigation may be conducted outside the right-of-way including
enhancement, creation, and preservation.
Based upon the agreements stipulated in the "Memorandum of Agreement Among
the North Carolina Department of Environment and Natural Resources, the North
Carolina Department of Transportation, and the U.S. Army Corps of Engineers,
Wilmington District" (MOA), it is understood that the North Carolina Department of
Environment and Natural Resources Ecosystem Enhancement Program (EEP), will
assume responsibility for satisfying the federal Clean Water Act compensatory mitigation
requirements for NCDOT projects that are listed in Exhibit 1 of the subject MOA during
the EEP transition period which ends on June 30, 2005.
Since the subject project is listed in Exhibit 1, the necessary compensatory
mitigation to offset unavoidable impacts to waters that are jurisdictional under the federal
Clean Water Act will be provided by the EEP. The offsetting mitigation will derive from
an inventory of assets already in existence within the same 8-digit cataloguing unit. The
Department has avoided and minimized impacts to jurisdictional resources to the greatest
extent possible as described above. The remaining, unavoidable impacts to 0.22 acres of
jurisdictional wetlands will be offset by compensatory mitigation provided by the EEP
program.
REGULATORY APPROVALS
Application is hereby made for a Department of the Army Nationwide 14 and 33
permits as required for the above-described activities. We anticipate 401 General
Certifications numbers 3361 and 3366 will apply to this project. In compliance with
Section 143-215.3D(e) of the NCAC we will provide $475.00 to act as payment for
processing the Section 401 permit application previously noted in this application (see
subject line). We are providing seven copies of this application to the North Carolina
Department of Environment and Natural Resources, Division of Water Quality, for their
review.
6

If you have any questions or need additional information do not hesitate to call
Mr. Chris Underwood, Environmental Biologist, at [phone].
Sincerely,
Gregory J. Thorpe, Ph.D, Manager
Project Development & Environmental Analysis Branch
Mr. John Dorney, Division of Water Quality (7 copies)
Ms. Marella Buncick, USFWS
Ms. Marla Chambers, NCWRC
Mr. Jay Bennett, P.E., Roadway Design
Mr. Omar Sultan, Programming and TIP
Ms. Debbie Barbour, P.E., Highway Design
Mr. David Chang, P.E., Hydraulics
cc list continued on next page
Mr. Greg Perfetti, P.E., Structure Design
Mr. Mark Staley, Roadside Environmental
Mr. John Sullivan, FHWA
Mr. B. G. Payne, P.E., Division Engineer
Mr. Larry Thompson, DEO
Mr. David Franklin, USACE, Wilmington (Cover Letter only)
Mr. William Gilmore, P.E., EEP, Raleigh (Cover Letter only)
7
1 1 0
Office Use Only: Form Version May 2002
03 8
USACE Action ID No. DWQ No. o 4 5
(If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".)
1. Processing
1. Check all of the approval(s) requested for this project:
® Section 404 Permit ? Riparian or Watershed Buffer Rules
? Section 10 Permit ? Isolated Wetland Permit from DWQ
® 401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested: NWP 14 and 33
3. If this notification is solely a courtesy copy because written approval for the 401 Certification
is not required, check here: ?
4. If payment into the North Carolina Wetlands Restoration Program (NCWRP) is proposed for
mitigation of impacts (verify availability with NCWRP prior to submittal of PCN), complete
section VIII and check here: ?
5. If your project is located in any of North Carolina's twenty coastal counties (listed on page
4), and the project is within a North Carolina Division of Coastal Management Area of
Environmental Concern (see the top of page 2 for further details), check here: ?
II. Applicant Information
1. Owner/Applicant Information
Name:NCDOT/Project Development & Environmental Analvsis Branch/ Gree Thorne
Mailing Address: 1548 Mail Service Center, Raleigh, NC 27699-1548
Telephone Number:919-733-3141 Fax Number:919-733-9794
E-mail Address:
2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name:
Company Affiliation:
Mailing Address:
Telephone Number: Fax Number:
E-mail Address:
Page I of 9
ti
III. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included. If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property
boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion,
so long as the property is clearly defined. For administrative and distribution purposes, the
USACE requires information to be submitted on sheets no larger than 11 by 17-inch format;
however, DWQ may accept paperwork of any size. DWQ prefers full-size construction
drawings rather than a sequential sheet version of the full-size plans. If full-size plans are
reduced to a small scale such that the final version is illegible, the applicant will be informed that
the project has been placed on hold until decipherable maps are provided.
1. Name of project: Widening of SR 1430 (Crisco Road) between SR 1431 to SR 1555
2. T.I.P. Project Number or State Project Number (NCDOT Only): R-2246C
3. Property Identification Number (Tax PIN):
4. Location
County: Cabarrus Nearest Town: Concord
Subdivision name (include phase/lot number):
Directions to site (include road numbers, landmarks, etc.): I-85 S to SR 1394 exit, travel east
on 1394 to intersection with SR 1430 (proiect's northern terminus); follow 1430 south to
intersection with SR 1431 (project's southern terminus).
5. Site coordinates, if available (UTM or Lat/Long): _
35° 24'20"N, 800 39'45"W - KANNAPOLIS quad
(Note - If project is linear, such as a road or utility line, attach a sheet that separately lists the
coordinates for each crossing of a distinct waterbody.)
6. Property size (acres):
7. Nearest body of water (stream/river/sound/ocean/lake): Coddle Creek (Class C)
8. River Basin: Yadkin
(Note - this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at htti)://h2o.enr.state.ne.us/admin/mos/.)
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: 2-lane, 20 foot sections with shoulder widths 4-6 feet wide.
Page 2 of 9
10. Describe the overall project in detail, including the type of equipment to be used: From SR
1431 (Weddington Road) to SR 1555 (Grand Canyon Road) - widen existing SR 1430
(Crisco Road) to multi-lanes (mostly 4-lane divided, but transitions to 5-laries closer to Grand
Canyon Road).
11. Explain the purpose of the proposed work: To provide an important link in the outer loop
thoroughfare system.
IV. Prior Project History
If jurisdictional determinations and/or permits have been requested and/or obtained for this
project (including all prior phases of the same subdivision) in the past, please explain. Include
the USACE Action ID Number, DWQ Project Number, application date, and date permits and
certifications were issued or withdrawn. Provide photocopies of previously issued permits,
certifications or other useful information. Describe previously approved wetland, stream and
buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project,
list and describe permits issued for prior segments of the same T.I.P. project, along with
construction schedules.
A iurisdictional determination was issued by the USACE for three wetlands associated with this
project. The USACE Action ID is 200230569.
V. Future Project Plans
Are any future permit requests anticipated for this project? If so, describe the anticipated work,
and provide justification for the exclusion of this work from the current application.
No.
VI. Proposed Impacts to Waters of the United States/Waters of the State
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
wetlands, open water, and stream channels associated with the project. The applicant must also
provide justification for these impacts in Section VII below. All proposed impacts, permanent
and temporary, must be listed herein, and must be clearly identifiable on an accompanying site
plan. All wetlands and waters, and all streams (intermittent and perennial) must be shown on a
delineation map, whether or not impacts are proposed to these systems. Wetland and stream
evaluation and delineation forms should be included as appropriate. Photographs may be
included at the applicant's discretion. If this proposed impact is strictly for wetland or stream
Page 3 of 9
mitigation, list and describe the impact in Section VIII below. If additional space is needed for
listing or description, please attach a separate sheet.
1. Provide a written description of the proposed impacts: 359.2 feet of permanent stream
impacts due to culvert extensions: 0.241 acres of wetland impacts due to fill and mechanized
clearing.
2. Individually list wetland impacts below:
Wetland Impact
Site Number
(indicate on map)
Type of Impact* Area of
Impact
(acres) Located within
100-year Floodplain**
(yes/no) Distance to
Nearest Stream
(linear feet)
Type of Wetland***
1 Fill 0.21 yes adjacent
1 Mech. clearing 0.0116 yes adjacent
2 Fill 0.0017 yes adjacent
2 Mech. clearing 0.0040 yes adjacent
3 Fill 0.0151 yes 58.5
* List each impact separately and identify temporary impacts. Impacts include, but are not limited to: mechanized clearing, grading, fill,
excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding.
** 100-Year floodplains are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps
(FIRM), or FEMA-approved local floodplain maps. Maps are available through the FEMA Map Service Center at 1-800-358-9616, or
online at http://www.fema.gov.
*** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond,
Carolina Bay, bog, etc.) Indicate if wetland is isolated (determination of isolation to be made by USACE only).
List the total acreage (estimated) of all existing wetlands on the property: N/A
Total area of wetland impact proposed: 0.2424 acres
3. Individually list all intermittent and perennial stream impacts below:
Stream Impact
Site Number
(indicate on map)
Type of Impact* Length of
Impact
(linear feet)
Stream Name* * Average Width
of Stream
Before Impact Perennial or
Intermittent?
(please specify)
1 Fill 0.015 ac. UT to Coddle Creek 5 feet Perennial
1 Culvert ext. 138.8 UT to Coddle Creek 5 feet Perennial
2 Fill 0.0047 ac. UT to Coddle Creek Perennial
2 Culvert ext. 112.5 UT to Coddle Creek Perennial
3 Fill 0.0148 ac. UT to Coddle Creek . Perennial
3 Culvert ext. 107.9 UT to Coddle Creek Perennial
* List each impact separately and identity temporary impacts. Impacts include, but are not limited to: culverts and associated rip-rap,
dams (separately list impacts due to both structure and flooding), relocation (include linear feet before and after, and net loss/gain),
stabilization activities (cement wall, rip-rap, crib wall, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is
proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included.
** Stream names can be found on USGS topographic maps. If a stream has no name, list as UT (unnamed tributary) to the nearest
downstream named stream into which it flows. USGS maps are available through the USGS at 1-800-358-9616, or online at
www.usgs.gov. Several intemet sites also allow direct download and printing of USGS maps (e.g., www.topozone.com,
www.mapquest.com, etc.).
Cumulative impacts (linear distance in feet) to all streams on site: 359.2
Page 4 of 9
4. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.) below:
Open Water Impact
Site Number
(indicate on map)
Type of Impact* Area of
Impact
(acres) Name of Waterbody
(if applicable) Type of Waterbody
(lake, pond, estuary, sound,
bay, ocean, etc.)
No Impacts

V List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging,
flooding, drainage, bulkheads, etc.
5. Pond Creation
If construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this application.
Pond to be created in (check all that apply): ? uplands R stream wetlands
Describe the method of construction (e.g., dam/embankment, excavation, installation of
draw-down valve or spillway, etc.): N/A
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.):
Size of watershed draining to pond: Expected pond surface area:
VII. Impact Justification (Avoidance and Minimization)
Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide
information related to site constraints such as topography, building ordinances, accessibility, and
financial viability of the project. The applicant may attach drawings of alternative, lower-impact
site layouts, and explain why these design options were not feasible. Also discuss how impacts
were minimized once the desired site plan was developed. If applicable, discuss construction
techniques to be followed during construction to reduce impacts.
Three stream impacts will occur due to culvert constructions. With the addition a lanes due to
jMhM,gWvert improvements are unavoidable. The Construction eau
in hox culverts for
R-2246 C, site 31s- 7as?s: install rock silt screen, construct stilling&%?--_in (min- capacily 107 cu.
in.), construct diversion chan ove existing 1350 min.
Pz?_ pipe,
construct proposed culvert, remove impe es, construct proposed road, and remove all
erosion control devices. The constrinti-o-n-segue-n r site 1 is the same with these exceptions: the
stillini! basin minimum canaeiKli 125 cu. in., and the e3l!ft give is 1800 min.

Page 5 of 9
VIII. Mitigation
DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC
Division of Water Quality for projects involving greater than or equal to one acre of impacts to
freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial
streams.
USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide
Permits, published in the Federal Register on March 9, 2000, mitigation will be required when
necessary to ensure that adverse effects to the aquatic environment are minimal. Factors
including size and type of proposed impact and function and relative value of the impacted
aquatic resource will be considered in determining acceptability of appropriate and practicable
mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
but are not limited to: reducing the size of the project; establishing and maintaining wetland
and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
for USACE or DWQ to consider the application complete for processing. Any application
lacking a required mitigation plan or NCWRP concurrence shall be placed on hold as
incomplete. An applicant may also choose to review the current guidelines for stream restoration
in DWQ's Draft Technical Guide for Stream Work in North Carolina, available at
h=://h2o.enr.state.nc.us/ncwetlands/strmgide.html.
1. Provide a brief description of the proposed mitigation plan. The description should provide
as much information as possible, including, but not limited to: site location (attach directions
and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet)
of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a
description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
Wetland mitigation is proposed for this project. Stream impacts equal 359.2 feet to
three crossings of three unnamed tributaries of Coddle Creek. Since no one crossing is
greater than 150 feet, mitigation is not anticipated. Site 1 (Station 16+00-L- has
impacts to the associated wetland equaling 0.22 acres and mitigation is anticipated The
North Carolina Department of Environment and Natural Resources Ecos sy tem
Enhancement Program (EEP) is proposed for meeting the mitigation requirements for
this project.
Page 6 of 9
2. Mitigation may also be made by payment into the North Carolina Wetlands Restoration
Program (NCWRP). Please note it is the applicant's responsibility to contact the NCWRP at
[phone] to determine availability and to request written approval of mitigation prior
to submittal of a PCN. For additional information regarding the application process for the
NCWRP, check the NCWRP website at http://h2o.enr.state.ne.us/M/index.htm. If use of
the NCWRP is proposed, please check the appropriate box on page three and provide the
following information:
Amount of stream mitigation requested (linear feet): N/A
Amount of buffer mitigation requested (square feet): N/A
Amount of Riparian wetland mitigation requested (acres): 0.21
Amount of Non-riparian wetland mitigation requested (acres): N/A
Amount of Coastal wetland mitigation requested (acres): N/A
IX. Environmental Documentation (required by DWQ)
Does the project involve an expenditure of public (federal/state) funds or the use of public
(federal/state) land?
Yes ® No
If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds for environmental documentation.
Yes ® No
If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a
copy of the NEPA or SEPA final approval letter.
Yes ® No R
X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
Page 7 of 9
Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233
(Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and
Water Supply Buffer Requirements), or other (please identify )?
Yes ? No ® If you answered "yes", provide the following information:
Identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer
mitigation is required calculate the required amount of mitigation by applying the buffer
multipliers.
Zone* Impact
(square feet) Multiplier Required
Mitigation
1 3
2 1.5
Total
T cone r exlenas out.3V reel perpenuicular rrom near banK or cnannel; Gone 1 extends an
additional 20 feet from the edge of Zone 1.
If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation
of Property, Conservation Easement, Riparian Buffer Restoration /Enhancement, Preservation or
Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as
identified within 15A NCAC 2B .0242 or .0260.
N/A
XI. Stormwater (required by DWQ)
Describe impervious acreage (both existing and proposed) versus total acreage on the site.
Discuss stormwater controls proposed in order to protect surface waters and wetlands
downstream from the property.
N/A
XII. Sewage Disposal (required by DWQ)
Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
N/A
XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules?
Page 8 of 9
Yes [-] No
Is this an after-the-fact permit application?
Yes E] No
XIV. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
Applicant/Agent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant is provided.)
Page 9 of 9
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VICINITY
MAP
NCD®T
DIVISION OF HIGHWAYS
CABARRUS COUNTY
PROJECT: 8.2661601 (R-22460
CONCORD-KANNAPOLIS
WESTSIDE BYP EXT FROM
I SR 1431 TO SR 1555
SHEET ` OF 10 / 16 / 2001
NORTH CAROLING

N.I ?JB
F? .

SITA
MAP
SHEET OF 10/16/2001
C?
1000 0 1000 2000
-,?
NCDOT
DIVISION OF HIGHWAYS
CABARRUS COUNTY
PROJECT: 8.2661601 (R-22460
CONCORD-KANNAPOLIS
WESTSIDE BYP EXT FROM
SR 1431 TO SR 1555
LEGEND
-WLB WETLAND BOUNDARY
WETLAND
L
DENOTES FILL IN
WETLAND
DENOTES FILL IN
SURFACE WATER
® DENOTES FILL IN
SURFACE WATER
(POND)
DENOTES TEMPORARY
FILL IN WETLAND
®DENOTES EXCAVATION
IN WETLAND
71DENOTES TEMPORARY
. FILL IN SURFACE
.WATER
• Y » DENOTES MECHANIZED
`» •» ' " CLEARING
FLOW DIRECTION
TB
-?- TOP OF BANK
-WE-- EDGE OF WATER
- -C_ - PROP. LIMIT OF CUT
--E- PROP. LIMIT OF FILL
- PROP. RIGHT OF -WAY.
AOL
- - NG - - NATURAL GROUND
- -P? - PROPERTY LINE
- TDE - TEMP. DRAINAGE
EASEMENT
- PDE - PERMANENT DRAINAGE
EASEMENT
- EAB- EXIST. ENDANGERED
ANIMAL BOUNDARY
- EPB - EXIST. ENDANGERED
PLANT BOUNDARY
- - - - - - - WATER SURFACE
XX XXX X X LIVE STAKES
BOULDER
- - - CORE FIBER ROLLS
L
PROPOSED BRIDGE
PROPOSED BOX CULVERT
PROPOSED PIPE CULVERT
12'-48'
(DASHED LINES DENOTE PIPES
EXISTNG STRUCTURES) 54' PIPES
& ABOVE
SINGLE TREE
WOODS LINE
DRAINAGE INLET
ROOTWAD
RIP RAP
ADJACENT PROPERTY OW
OR PARCEL NUMBER
IF AVAILABLE
BZ1 BUFFER ZONE 1
BZ2 - BUFFER ZONE 2
lrl CD® 1L
DIVISION OF HIGHWAYS
CABARRUS COUNTY
PROJECT: 8.2661601 (R-22460
CONCORD-KANNAPOLIS
WESTSIDE BYP EXT FROM
SR 1431 TO SR 1555
SHEET OF 10/16/2001
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PARCEL. NO. NAMES
15 COBLE FAMILY FARM LIMITED
PARTNERSHIP & JOYCE P. NEEDHAM
ADDRESSES
1830 OLD SALISBURY RD.
CONCORD, NC 28025
16 CROSSROADS UNITED METHODIST CHURCH 2104 PITTS SCHOOL RD.
CONCORD, NC 28207
17 ELIZABETH P. COOK FAMILY 1221 OLD SALISBURY RD.
LIMITED PARTNERSHIP CONCORD, NC 28025
18 COBLE FAMILY FARM LIMITED
PARTNERSHIP & JOYCE P. NEEDHAM
LIMITED PARTNERSHIP
1830 OLD SALISBURY RD.
CONCORD, NC 28025
NCDOT
DIVISION OF HIGHWAYS
CABARRUS COUNTY
PROJECT: 8.2661601 (R-2246C)
CONCORD-KANNAPOLIS
WESTSIDE BYP EXT FROM
SR 1431 TO SR 1555
SHEET OF h 10/16/2001

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imap://john.dorney%40dwq.denr.ncmail.net@ cros.ncmail.net:143/fe...
ct: Concord-Kannapolis Bypass (R-2246C) project and cumulative impacts
.,046' om: John Domey <[e-mail]>
Date: Tue, 11 Nov 2003 10:31:47 -0500
To: Cynthia Van Der Wiele <[e-mail]>, Alice Gordon
<[e-mail]>, "[e-mail]" <[e-mail]>, Greg Thorpe
<gthorpe @ dot.state.nc.us>
CC: Coleen Sullins <Coleen. Sullins@ ncmail.net>
just finished the meeting with DOT and Buck Engineering staff regarding the
above-mentioned project. the conclusion was that the modeling did show a significant
potential for sediment impacts in the 303(d) listed stream (Coddle Creek) downstream
of NC 73 and therefore cumulative impacts will need to be addressed in this impact
area. the following work needs to be done quickly in order to meet DOT's December
Let List.
the solution is to 1) have protected wooded buffers (30 feet should be sufficient) on
all internittent and perennial streams, 2) require on-site stormwater management for
new development in order to control erosive velocities in stream channels and
pollutant delivery and 3) have DOT fund a local watershed plan which would target
appropriate stream mitigation sites for WRP, EEP, private banks and other entities.
The following folks need to do the following work in order to get this project in the
December Let List: the Corps of Engineers has issued the NAtionwide 14 Permit for
this project and this is the last project on DOT's priority list that DWQ has not yet
issued a 401 Certification for.
Buck Engineering -
Determine which municipalities will need to work with DWQ to improve
ordinances (working with Steve Zoufaly since he has had contact with local water
supply watershed folks)
Determine the general level of willingness to address the above listed items
(1 and 2).
DWQ -
Cynthia - prepare draft of 401 including our (now standard!) language for working
with the local governments regarding cumulative impact and a condition
requiring DOT to fund a local watershed plan.
John - talk to Coleen on Friday to determine what level of written, local
committment is needed for this project (City Council, Mayor, or City Manager).
DOT -
Confirm the committment to fund a local watershed plan and ensure that
EEP/WRP is willing to do this plan.
Once Buck Engineering has determined the level of willingness of the local
officials to work with DWQ on this plan, then make formal contact with
the appropriate local officials.
If i have left anything out, please feel free to correct/elaborate. thankx
1 11/11/03 10:32 AM
C?7YC% 111111-03
&?/U c 073

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STATE OF NORTH CAROLINA
036??5
DEPARTMENT OF TRANSPORTATION
MICHAEL F. EASLEY LYNDo TIPPETT
GOVERNOR SECRETARY
September 17, 2003
NC Division of Water Quality NETLANDS141
1650 Mail Service Center
Raleigh, NC 27699-1650 S p o t 117
Attention: Mr. John Dorney
Wetlands/401 Supervisor
Dear Sir,
TERQUALITYSECTIQN
Subject: R-2246 C Response to DWQ ON HOLD Letter; DWQ Project No.
030845
On July 9, 2003 a permit application for TIP Project no. R-2246 C (DWQ Project no.
030845) was submitted to DWQ. This letter addresses the Indirect and Cumulative
Impact (ICI) study and hydraulic design items in your September 9, 2003, "on hold"
letter regarding the widening of the Concord-Kannapolis Westside Bypass. Your letter
cited deficiencies regarding the ICI and no supporting evidence for NCDOT's plan for
stormwater pre-treatment. The following items address these concerns:
1. NCDOT consultants have revised the ICI to correct the concerns addressed by DWQ.
2. NCDOT Hydraulic Design Unit has re-designed the two crossings of the unnamed
tributaries to Coddle Creek, a 303(d) listed stream, to provide pre-treatment of the
storm water runoff before entering the streams. The new design provides wider grass
swales and the elimination of riprap in order to use permanent soil reinforcing matting
(PSRM). The new design also uses preformed scour holes and the addition of
permanent check dams in one stormwater conveyance. This design will not
exacerbate the cause (urban runoff/storm sewers) of the 303(d) listing for Coddle
Creek.
Detail "N" is shown on page five of the half-size plans.
Copies of the revised hydraulic drawings and roadway plan sheets are attached as
requested.
If you have any further questions, please contact Chris Underwood at [phone].
MAILING ADDRESS: TELEPHONE: [phone] LOCATION:
NC DEPARTMENT OF TRANSPORTATION FAX: [phone] TRANSPORTATION BUILDING
PROJECT DEVELOPMENT AND ENVIRONMENTAL ANALYSIS 1 SOUTH WILMINGTON STREET
1548 MAIL SERVICE CENTER WEBSITE. WNW! NCDOT.ORG RALEIGH NC
RALEIGH NC 27699-1548
Sincerely,
Grego J. Thorpe, Ph.D, Manager
Project Development & Environmental Analysis Branch
cc:
Mr. John Dorney, Division of Water Quality
Ms. Marella Buncick, USFWS
Ms. Marla Chambers, NCWRC
Mr. Jay Bennett, P.E., Roadway Design
Mr. Omar Sultan, Programming and TIP
Ms. Debbie Barbour, P.E., Highway Design
Mr. David Chang, P.E., Hydraulics
Mr. Greg Perfetti, P.E., Structure Design
Mr. Mark Staley, Roadside Environmental
Mr. John Sullivan, FHWA
Mr. B. G. Payne, P.E., Division Engineer
Mr. Larry Thompson, DEO
Mr. David Franklin, USACE, Wilmington
Mr. William Gilmore, P.E., EEP, Raleigh
AT?cR
QG
?'?M?riR?? +l
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
September 9, 2003
Cabarrus County
DWQ Project No. 030845
TIP Project No. R-2246C
Widening of SR 1430 from SR 1431 to SR 1555 (Concord-Kannapolis Westside Bypass)
CERTIFIED MAIL: Return receipt requested
Mr. Gregory J. Thorpe, Ph.D., Manager
NCDOT Project Development & Environmental Analysis Branch
1548 Mail Service Center
Raleigh, NC 27699-1548
Dear Mr. Thorpe:
The Division of Water Quality staff has reviewed your response to our letter delineating deficiencies in
the §401 Water Quality Certification application dated August 15, 2003. This project will remain on hold
until:
¦ Inadequacies in the quantitative ICI assessment are addressed. DWQ staff concluded that it cannot be
determined whether there is a significant increase in sediment and nutrients as a result of the
Concord-Kannopolis Westside Bypass especially south of NC 73. Most significantly, given that
NCDOT is contending that the Bypass north of NC 73 does not have any cumulative impact issues
(since there are no §303(d) listed streams), then the analysis must recognize this fact also.
The ICI study should be restructured to examine the study area south of NC 73 separately from the
area north of NC 73. In addition, sources of sediment (e.g., streambank erosion, from construction
and from developed urban areas) should be tallied separately so that any needed BMPs can be
designed to address specific needs. Finally, enhanced BMPs (including wooded stream buffers, on-
site stormwater management, and improved sediment and erosion control) will need to be modeled
for the area south of NC 73 to determine the effect of these BMPs on pollutant delivery.
Coddle Creek and its unnamed tributaries are on the §303(d) list of impaired waters for sediment.
The sources are urban runoff and storm water. There are two crossings on this project. DWQ had
requested in the previous correspondence that NCDOT Hydraulic Design Unit re-design these two
crossings to provide pre-treatment of the storm water runoff before entering the streams. Design
options appeared to be a pre-formed scour hole or a detention basin. Todd St. John reviewed the
plans and had the following comments:
1. NCDOT does not have supporting evidence that the topography is too steep to use detention
basins or level spreaders. .
2. DWQ needs data on the Q2 velocity, the maximum slope and the drainage area in order to
evaluate DOT's belief that wider grass swales and the use of PSRM instead of riprap will perform
the same function as scour holes and detention basins.
3. Detail "N" was not provided.

N. C. Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
[phone] (phone), 919-733-6893 (fax), (htta://h2o.enr.state.nc.us/ncwetiands)
Customer Service #: 1-877-623-6748
Pursuant to 15A NCAC 2H.0507(a)(3), the permit application is placed on hold until we are supplied the
necessary information. Furthermore, until the information is received by the NC Division of Water
Quality, we request (by copy of this letter) that the US Army Corps of Engineers continue to place the
permit application on hold.
If NCDWQ can receive this information before the Public Comment period ends, then we anticipate no
delay in processing the §401 Water Quality Certification in order to meet the Let Schedule. We look
forward to working with you to expedite the processing of your permit application. If you have any
questions, please telephone Ms. Cynthia Van Der Wiele at 919.733.1786.
Sincerely,
R. Dorney
W ter Quality Certificati n Program
cc: Wilmington District Corps of Engineers
Steve Lund, Corps of Engineers Asheville Field Office
Coleen Sullins, DWQ
NCDWQ Mooresville Regional Office
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Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
. Division of Water Quality
Department of Environmental and Natural Resources
Wetlands/401 Unit
Street Address: 2321 Crabtree Boulevard, Suite 250
Raleigh, NC 27604-2260
Mailing Address: 1650 Mail Service Center
Raleigh, NC 27699-1650
Contact Information: Phone #: [phone]
Fax #: .[phone]
Fax To: J?-\Cr
Company:
Number of pages including cover sheet:
Notes or special instructions:
Fax #: 7jb ?
Date: ?/, D/D 3

N. C. Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
[phone] (phone), 919-733-6893 (fax), (httpJ/h2o.enr.state.nc us/newetlands
1

? Q1NM ?'
MICHAEL F. EASLEY
GOVERNOR
STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
August 28, 2003
NC DENR/Division of Water Quality,
Wetlands Unit,
1621 Mail Service Center
Raleigh, NC 27699-1621
ATTN.: John Dorney, Supervisor
Dear Sir:
LYNDO TIPPETT
SECRETARY
'Ei' . DS I 1 CROUP
AUG 2 8 2003
MATERQUALITYS ION
Subject: R-2246C Response to DWQ ON HOLD Letter: DWQ Project No. 030845. Kannapolis Westside
Bypass.
In our letter to you dated August 15, 2003 we identified that we would send you seven copies of the quantitative Indirect
and Cumulative impacts (ICI) assessment as soon as the document was available. Enclosed please find the referenced
seven copies. This transmittal completes the information requested in your July 11, 2003 On Hold letter. If you have any
questions or need additional information please call Mr. Chris Underwood at (919) 715-11451.
Sincerely,
J
Gregory J. Thorpe, Ph. .
Environmental Management Director, PDEA
cc: Mr. John Dorney, NCDWQ (7 copies)
Mr. Marla Chambers, NCWRC
Ms. Kathy Matthews, USEPA
Ms Marella Buncick, USFWS
Mr. Jay Bennett, P.E., Roadway Design
Mr. Omar Sultan, Programming and TIP
Ms. Debbie Barbour, P.E., Highway Design
Mr. David Chang, P.E., Hydraulics
Mr. Greg Perfetti, P.E., Structure Design
Mr. Mark Staley, Roadside Environmental
Mr. B. G. Payne, P.E. (Div. 5), Division Engineer
Mr. Larry Thompson, DEO
Mr. David Franklin, USACE, Wilmington (Cover Letter Only)
MAILING ADDRESS:
NC DEPARTMENT OF TRANSPORTATION
PROJECT DEVELOPMENT AND ENVIRONMENTAL ANALYSIS
1548 MAIL SERVICE CENTER
RALEIGH NC 27699-1548
TELEPHONE: [phone]
FAX: [phone]
WEBSITE. WWW. DOH. DOT. STATE. NG. US
LOCATION:
TRANSPORTATION BUILDING
1 SOUTH WILMINGTON STREET
RALEIGH NC
e„aSWpo
. _?
STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
MICHAEL F. EASLEY LYNDo TIPPETT
GOVERNOR SECRETARY
August 15, 2003
NC Division of Water Quality
1650 Mail Service Center AUG 1 8 2003
Raleigh, NC 27699-1650
Attention: Mr. John Dorney
Wetlands/401 Supervisor
Dear Sir,
+. k
Subject: R-2246 C Response to DWQ ON HOLD Letter; DWQ Project No.
030845
On July 9, 2003 a permit application for TIP Project no. R-2246 C (DWQ Project no.
030845) was submitted to DWQ. This letter addresses each item in your'July 11, 2003,
"on hold" letter regarding the widening of the Concord-Kannapolis Westside Bypass. A
copy is attached for your convenience.
1. The use of the Ecosystem Enhancement Program is now permitted. A Memorandum ek_
of Agreement was signed on July 22, 2003 with the North Carolina Department of
Environment and Natural Resources.
2. The qualitative Indirect and Cumulative Effects (ICE) assessment which deals with
future development was delivered to DWQ on July 29, 2003. The quantitative
Indirect and Cumulative Impacts (ICI) assessment which deals with the impacts to the
watershed is being written by Buck Engineering. We estimate that the document will
be available for review by August 22, 2003.
3. NCDOT Hydraulic Design Unit has re-designed the two crossings of the unnamed
tributaries to Coddle Creek, a 303(d) listed stream, to provide pre-treatment of the
storm water runoff before entering the streams. The new design provides wider grass V
swales and the elimination of riprap in order to use permanent soil reinforcing matting
(PSRM). The discharge from the pipe exceeds the allowable quantity of water to use
v? ?..., preformed scour holes, and the topography is too steep to use detention basins or level
6'" Q spreaders. Wider grass swales and the use of PS stead of ri ra will perform the
(?y same function'as preformed scour es and detention basins. This design will not
exacerbate the cause (urban runoff/ torm sewers) of the 303(d) listing for Coddle
? 404
Creek. ., MAILING ADDRESS: TELEPHONE: [phone]
LOCATION:
NC DEPARTMENT OF TRANSPORTATION FAX: [phone]? May 4v,?? O ,? TRANSPORTATION BUILDING
PROJECT DEVELOPMENT AND ENVIRONMENTAL ANALYSIS f• "1'Y`' , I '"" 0.1 SOUT1gILMINGTON STREET
1548 MAIL SERVICE CENTER WEBSITE: WINW.NCDOT.ORG G RALEIGH NC
RALEIGH NC 27699-1548 a v?? 4U4-A, # ??
The revised permit drawings and the revised half size plans show details "N", "M",
and "L". These details correspond to "D", "J", and "B" on the original drawings.
Details "N", "M", and "L" have PSRM in the bottom of the lateral base ditches.
Details "D", "J", and "B" have class B riprap in the bottom of the lateral base ditches.
Copies of the revised hydraulic drawings are attached as requested.
If you have any further questions, please contact Chris Underwood at [phone].
Sincerely,
Tn. Qvy 1
Gregory J. Thorpe, Ph.D, Manager
Project Development & Environmental Analysis Branch
cc:
Mr. John Dorney, Division of Water Quality
Ms. Marella Buncick, USFWS
Ms. Marla Chambers, NCWRC
Mr. Jay Bennett, P.E., Roadway Design
Mr. Omar Sultan, Programming and TIP
Ms. Debbie Barbour, P.E., Highway Design
Mr. David Chang, P.E., Hydraulics
Mr. Greg Perfetti, P.E., Structure Design
Mr. Mark Staley, Roadside Environmental
Mr. John Sullivan, FHWA
Mr. B. G. Payne, P.E., Division Engineer
Mr. Larry Thompson, DEO
Mr. David Franklin, USACE, Wilmington
Mr. William Gilmore, P.E., EEP, Raleigh

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F WAIF Michael F. Easley, Governor
\O?O 9QG William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
r Alan W. Klimek, P.E., Director
> Division of Water Quality
Q •? Coleen H. Sullins, Deputy Director
Division of Water Quality

July 11, 2003
Cabarrus County
DWQ Project No. 03084
TIP Projec
Widening of SR 1430 from SR 1431 to SR 1555 (Concord-Kannapolis a e tyyp!s
CERTIFIED MAIL: Return receipt reauested
I R ?043 s
Mr. Gregory J. Thorpe, Ph.D., Manager Jut
NCDOT Project Development & Environmental Analysis Branch Q
1548 Mail Service Center ro pN?DNYS
Raleigh, NC 27699-1548`5p,
%,, wplo
Dear Mr. Thorpe:
The Division of Water Quality staff has reviewed your submittal of an application for a §401 Water
Quality Certification for the aforementioned project dated July 18, 2003 (received July 10, 2003). This
project will remain on hold until:
1. Issues relating to use of the Ecosystem Enhancement Program (EEP) have been resolved.
To date, an MOU has not been signed with DENR. Until that MOU has been developed
and signed, DWQ will be unable to permit the utilization of the EEP for this project. Use
of the Wetlands Restoration Program (WRP) to provide compensatory mitigation for this
project is acceptable to DWQ.
2. Receipt of the Indirect and Cumulative Impacts Study Report by DWQ.
3. Coddle Creek and its unnamed tributaries are on the §303(d) list of impaired waters for sediment.
The sources are-urban runoff and storm water. There are two crossings on this project. DWQ
requests that NCDOT Hydraulic Design Unit re-design these two crossings to provide pre-treatment
of the storm water runoff before entering the streams. Options appear to be a pre-formed scour hole
or.a detention basin.
Pursuant to 15A NCAC 2H.0507(a)(3), the permit application is placed on hold until we are supplied the
necessary information. Furthermore, until the information is received by the NC Division of Water
Quality, we request (by copy of this letter) that the US Army Corps of Engineers continue to place the
permit application on hold.
We look forward to working with you.to expedite the processing of your permit application. If yoia have,.
any questions, please telephone Ms. Cynthia Van Der Wt ele at 919.733.1786.
R. Dorney
r Quality Certific tion Program
cc: Wilmington District Corps of Engineers v
Steve Lund, Corps of Engineers Asheville Field Office
Coleen Sullins, DWQ
NCDWQ Mooresville Regional Office
Pile Copy
N. C. Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
[phone] (phone), 919-733-6893 (fax), (htto://h2o.enr.state.nc.us/ncwetiands)
Customer Service #: 1-877-623-6748
el-
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CONTRACT: C200777 TIP PROJECT: R-2246C
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Concord-Kannapolis QUi; 2 '?' 2003
Westside Bypass & Westside Bypass Extension Project-
State
State Project Nos. 8.266160 & 9.8013406 QUALITYSECTION
TIP R-2246 & U -2009C
Rowan and Cabarrus Counties S V'-5-
North Carolina
Indirect and Cumulative Impact Study
Quantitative Assessment of Sediment and Nutrients
Prepared for:
North Carolina Department of Transportation
FNO
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P
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*
Q
A
Of TA
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Prepared by:
Buck Engineering
8000 Regency Parkway, Suite 200
Cary, North Carolina 27511
August 2003
Summary
t This document is a quantitative assessment of the potential indirect and cumulative
effects on water quality from eutrophication and sedimentation that may result from the
' incremental effects of the proposed Kannapolis Westside Bypass (TIP U-2009), the
Westside Bypass Extension (TIP R-2246), and development activities in the same
geographic region. The purpose of this assessment is to provide sufficient environmental
' information to enable resource agencies to make final permitting decisions.
For the purposes of this document and ease of reference, the Westside Bypass and
' Westside Bypass Extension project areas are collectively referred to as the Bypass.
Water quality modeling techniques consisting of an application of the Soil and Water
' Assessment Tool (SWAT) model were employed to produce sediment and nutrient
loading estimates for the Bypass watershed for three scenarios:
• Current conditions
• Year 2015 "No Build" and
• 2015 "Build".
' The SWAT model incorporated existing geographic, environmental, and management
conditions together with projected land use conditions to estimate sediment and nutrient
loadings for the three scenarios. Scenarios were based on existing land use conditions
' and projected growth surrounding the proposed corridor as detailed in the recently
completed indirect and cumulative impact assessment document for the Bypass
(NCDOT, 2003). This document was transmitted to the NCDWQ and USACE under
' separate cover earlier this month.
Results of the analysis suggest construction of the Bypass will result in an increase in
' sediment of 7.0%, an increase in total nitrogen of 5.3%, and an increase in total
phosphorus loading of 7.4% in the project watershed as compared to the "No Build"
option. While these increases are estimated to be directly attributable to development
' generated by the Bypass, in each case they are small compared to the predicted difference
between current conditions and estimated future conditions. The "No Build" scenario is
predicted to increase sediment and nutrient loading in the year 2015 by more than 15%
' with the Bypass contributing only marginally to the increase in sediment and nutrients.
Conclusions of the report are as follows:
' • Water quality in the Bypass watershed may be impacted by increased sediment
' in 2015 due to development regardless of whether the Build or No Build option
is selected.
• Many channelized streams in the basin are at risk of degradation and bank
' erosion if riparian vegetation were to be removed.
• Water quality in the watershed's two public drinking water supplies will not be
affected by the project.
I
ICI Quantitative Assessment i Buck Engineering
' for R-2246 and U-2009

1

t
1

t

• While nutrient loading will be increased by the Build option instream nitrogen
concentrations will be essentially unchanged by the project and phosphorus
concentrations will increase by less than 3%. The increase in nutrient
concentrations alone does not threaten water quality in the watershed.
• Increased nutrient loading under both the Build and No Build option are
predicted to impact the eutrophic condition of Mill Creek arm of the Coddle
Creek Reservoir. Mill Creek is not a 303(d) listed stream.
ICI Quantitative Assessment ii
for R-2246 and U-2009
Buck Engineering

11

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Table of Contents
1 Introduction. *'*"**'*'*"*"***""*"*""************""**"*********""********'***'************""*"*'*****'******', 1
2 Project Location ........................................................................................................ .. 2
3 Current and Future Land Use .................................................................................... .. 7
4 Assessment of Sediment and Nutrients ..................................................................... 12
4.1 Methods ............................................................................................................. 12
4.1.1 Model Selection ........................................................................................ 12
4.1.2 Watershed Delineation .............................................................................. 12
4.1.3 Field Data Collection ................................................................................ 12
4.1.4 Other Data Sources ................................................................................... 18
4.2 Model Calibration ............................................................................................. 20
4.3 Results and Discussion ..................................................................................... 26
5 Conclusions ............................................................................................................... 30
6 References ................................................................................................................. 31
LIST OF FIGURES
Figure 1. Project Vicinity Map
Figure 2. Indirect and Cumulative Impact Study Area
Figure 3. Greater Project Watershed
Figure 4. ICI Impact Area
Figure 5. Current Land Use Conditions
Figure 6. Predicted Land Use 2015 Without Bypass (No Build Option)
Figure 7. Predicted Land Use 2015 With Bypass (Build Option)
Figure 8. Land Use Scenarios for the Project Impact Area
Figure 9. GIS Data Processing Schematic
Figure 10. SWAT Model Schematic
Figure 11. Coddle Creek and Irish Buffalo Creek Watersheds
Figure 12. Field Site Locations
Figure 13. Weather Stations
Figure 14. General Soils
Figure 15. Water Withdrawals and Discharges
Figure 16. Modeled Stream Segments
Figure 17. Modeled Watersheds
Figure 18. Predicted Discharge for Three Scenarios
Figure 19. Predicted Sediment Loading for Three Scenarios
Figure 20. Predicted Nitrogen Loading and Concentration for Three Scenarios.
Figure 21. Predicted Phosphorus Loading and Concentration for Three Scenarios.
LIST OF TABLES
Table 1. Selected Cross Section and Sediment Sites
Table 2. Reservoir Data
ICI Quantitative Assessment iii Buck Engineering
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APPENDICES
Appendix I. Field Surveys - Stream Cross Sections
Appendix II. Sediment Analyses
Appendix III. Photo Log
ICI Quantitative Assessment iv
' for R-2246 and U-2009
Buck Engineering

' 1 Introduction
This document presents a quantitative assessment of the potential indirect and cumulative
' effects on water quality from sedimentation and nutrient enrichment that may result from
the incremental effects of the proposed Westside Bypass (TIP U-2009) and Westside
Bypass Extension (TIP R-2246) projects in Cabarrus County, North Carolina and other
' past, present and future development activities in the same geographic region as the
project. For the purposes of this document, the two projects area treated as a single unit,
collectively referred to as the Westside Bypass. This report follows and builds upon the
recently completed Indirect and Cumulative Impact Study for the proposed projects
(NCDOT, 2003).
Indirect effects result from activities induced by a proposed action. The Council on
Environmental Quality (CEQ) defines "indirect effects" (also referred to as "secondary
effects") as "impacts on the environment, which are caused by the action and are later in
' time or farther removed in distance, but are still reasonably foreseeable" (40 CFR 3
1508.8). The CEQ regulations further state that indirect effects "...may include growth-
inducing effects and other effects related to induced changes in the patterns of land use,
' population density or growth rate, and related effects on air and water and other natural
systems, including ecosystems." The CEQ defines "cumulative impacts" as those
"...which result from the incremental impact of the action when added to other past,
present and reasonably foreseeable future actions regardless of what agency (federal or
nonfederal) or person undertakes such other actions" (40 CFR 3 1508.7).
In this case, changes in land use and development patterns surrounding the Bypass have
been determined to have the potential for adverse indirect impacts to water quality from

' increased sediment loading (NCDOT, 2003). Sediment loading and associated pollutant
loadings were analyzed within the Bypass watershed. The analysis includes current and
future predictions of annual sediment yield, total nitrogen (TN), and total phosphorus

' (TP) loading within a defined study boundary selected to enclose the majority of
development anticipated to be associated with project construction and implementation.
Results of the sediment and nutrient analysis quantify the percent increases in loading

1 rates between current conditions and anticipated land use for two future scenarios: the
year 2015 with the Bypass in place and the year 2015 without construction of the Bypass
.
The basin scale water quality model Soil and Water Assessment Tool (SWAT, Neitsch et
al. 2002) was selected as a tool for the sediment and nutrient analysis. SWAT was
developed to quantify the impact of land management practices in large, complex
' watersheds and is designed to integrate many land cover, land use, and environmental
features of a watershed with land and stream management practices into meaningful
water quality predictions. The model's ability to predict water quality sediment and
nutrient response to changing land use and management conditions makes it an ideal
' model to predict the potential secondary impacts from large scale projects such as the
proposed Bypass.

t

2 Project Location
The project is a north-south corridor through western Cabarrus County which would be
the western portions of the City of Concord and the City of Kannapolis. The Bypass
project will consist of two typical sections to be constructed on existing and new
alignment. A five-lane curb and gutter typical section on an 80-foot right-of-way will be
constructed between Poplar Tent Road (SR 1394) and NC 73 (Figures 1 and 2). This
section will be connected at I-85 by the Crisco Road interchange. The design speed for
this section is 50 miles per hour with an anticipated posted speed of 45 miles per hour. A
four-lane median-divided typical section on a 200-foot right-of-way will be constructed
between NC 49 and Poplar Tent Road (SR 1394) south of I-85 and between NC 73 and
Tuckaseegee Road (SRI 616) north of I-85. The design speed for these sections is 60 and
70 miles per hour, respectively, with both sections anticipated to have a posted speed of
55 miles per hour. The total length of the project is 13.3 miles. Partial access control
will be implemented for the project except for the US 29 interchange, which will have
full control of access.
An indirect and cumulative effects study area (Study Area) was defined to include all
areas in proximity to the project corridor that could experience development induced by
the proposed project within the timeframe of this study, 1999 to 2015. The Study Area
spans the planning jurisdictions of Cabarrus and Rowan Counties and the City of
Harrisburg at the south, the City of Concord in the middle, and the City of Kannapolis at
the north (Figure 2). The Study Area is within the Coddle Creek Reservoir (Lake
Howell) water supply watershed and the Coddle Creek and Irish Buffalo Creek
watersheds. These watersheds drain into the Rocky River and are in Subbasin 03-07-
11 of the Yadkin-Pee Dee River system. Short reaches of the Rocky River and Back
Creek also pass through the study area south of the Bypass (Figure 3). The section of
Coddle Creek below the Coddle Creek Reservoir dam and the Rocky River are Clean
Water Act Section 303(d) streams listed as impaired from sedimentation (See Figure 3).
The Coddle Creek Reservoir is a water supply resource serving Cabarrus County and the
City of Kannapolis. Portions of the Coddle Creek Reservoir critical water supply
watershed lie within the project area. Thus, concern for potential indirect and cumulative
impacts to water quality of these resources are of primary concern.
Within the larger study area an area of potential impact was determined through
evaluating land uses along the Bypass project corridor (NCDOT 2003). This area
(Impact Area) was defined as the location where changes to land use are likely to occur
as an indirect/induced effect of the project (Figure 4). Within the Impact Areas specific
land use development scenarios for the year 2015 with and without the Bypass were
developed. These "Build" and "No Build" scenarios, along with current conditions, are
described below.
ICI Quantitative Assessment 2
' for R-2246 and U-2009
Buck Engineering
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Concord - Kannapolis
Westside Bypass & Westside Bypass Extension Projects
Rowan County State Project Nos. 8.2661601 & 9.8013406
TIP R-2246 & U-2009C
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3 Current and Future Land Use
Land use in the project area has been described for current conditions and anticipated
future conditions in the year 2015 (NCDOT, 2003). This planning work took into
account regional growth trends, land use and zoning and transportation networks. The
result was a detailed assessment and discussion of current land use, projected land use in
the year 2015 without the Bypass and projected land use in the year 2015 with the Bypass
in place. These three scenarios were further refined to produce Geographic Information
System (GIS) data layers reflecting the three land use scenarios at the parcel level. These
data layers are suitable for model input and are presented below for current conditions
(Figure 5), the "No Build" option in 2015 (Figure 6) and the "Build" option in 2015
(Figure 7).
Although land use information from the entire project area and associated watersheds was
studied and used in the SWAT model, only parcels within the Impact Area were
determined to result in indirect and/or cumulative impacts (NCDOT, 2003). Therefore,
only land uses within the Impact Area are estimated to change under the three scenarios.
These anticipated land use differences between the scenarios are presented in Figure 8
and represent the driving force in predicted water quality differences between the three
scenanos.
ICI Quantitative Assessment
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4 Assessment of Sediment and Nutrients
4.1 Methods
Water quality modeling techniques were employed to produce sediment and nutrient
loading estimates for the Bypass watershed for the three scenarios of current conditions,
year 2015 "No Build," and 2015 "Build" conditions. The model incorporated existing
geographic, environmental, and management conditions together with projected land use
conditions to estimate sediment and nutrient loadings for the three scenarios.
4.1.1 Model Selection
Soil and Water Assessment Tool (SWAT, Neitsch et al. 2002) was selected as a tool for
the sediment and nutrient analysis. SWAT was developed to quantify the impact of land
management practices in large, complex watersheds and is designed to integrate many
land cover, land use, and environmental features of a watershed with land and stream
management practices into meaningful water quality predictions. The model's ability to
predict water quality sediment and nutrient response to changing land use and
management conditions makes it an ideal model to predict the potential secondary
impacts from large scale projects such as the proposed Bypass.
' The SWAT model requires topographic, hydrographic, land use, soils and weather data to
simulate surface water quality (Figure 9). Soil, groundwater, reservoir and stream
processes components are modeled (Figure 10).
' 4.1.2 Watershed Delineation
A digital elevation model (DEM) for the project area was developed based on 1:24,000
' typographic maps. ESRI GIS software Spatial Analyst was use to delineate watershed
boundaries. Since only a fraction of the Rocky River drainage was influenced by the
Project Area (Figure 3), it was excluded from this analysis. For modeling purposes, the
watersheds of Irish Buffalo Creek and Coddle Creek in and above the Project Area were
delineated and adopted as the model boundaries (Figure 11).
' 4.1.3 Field Data Collection
The SWAT model requires information about channel dimensions, Manning's n, stream
cover, and bank erodibility parameters. Field data measurements were taken at selected
study sites to fulfill this data need. Results were extrapolated from site locations to larger
representative areas.

ICI Quantitative Assessment 12 Buck Engineering
' for R-2246 and U-2009
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Irrigation Rain Snow
Snow Cover
Snow Melt

Infllltration Surface Runoff

Transmission Losses
Streamflow
Soil Storage Pond/Reservoir Water Balance
P/R Evaporation Irrigation Diversion
Soil Water Routing
Irrigation Transmission Losses
P/R Outflow
Soil Evaporation Route to next Reach
or Reservoir
P/R Seepage
Plant Uptake and
Transportation

Lateral Flow
Percolation

Shallow Aquafer
Irrigation Revap? Seepage Reurn Flow

Deep Aquifer
Irrigation

North Carolina Department of Transportation
l Project Development & Environmental
Analysis Branch
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Figure 10: Swat Model
Schematic

' Twenty eight stream sites were surveyed within the project area watershed to determine
' channel dimension, assess stream bank condition, and measure bed materials. Sites were
selected to represent a wide range of drainage areas from each portion of the Study Area.
An initial reconnaissance of the area was performed to determine whether the sites were
' viable. Sites with poor or dangerous access and sites with unusual hydraulics were
excluded from the study. Selected sites were deemed to be representative of typical
stream conditions in the vicinity. Selected sites are presented in Figure 12.
1
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A riffle (or a cross-over in sand bed streams) was chosen up or downstream of the road
crossing at a location that did not appear to be adversely impacted by the road crossing.
When the channel had pattern, pools were also surveyed at meander bends. Scour pools
caused by woody debris or other in-stream blockages were not selected to be surveyed.
A total of 34 cross sections were surveyed.
Cross-section measurements were taken of the floodplain, top of bank, bankfull, edge of
baseflow channel, water surface, and channel features including thalwag.
A modified Wolman pebble count analysis was used on course riffles that exhibited
cobble and course gravel as the dominant substrate (Bunte and Abt, 2001). In sand
bed/fine gravel streams bulk samples were taken of the bed material using standard
USGS sampling procedures. Bulk samples were composed of at least 10 composite
samples collected in equal increments across the baseflow stream channel. This bulk
sample was then dried and sieved to determine the percent composition of individual
sized particles.
Bank Erodibility Hazard Index (BEHI) estimates were performed at each site (Rosgen,
2000). The BEHI values were helpful in determining bulk erodibilty for the modeling
phase.
A summary of data relevant to SWAT model input for each of the 28 field surveys in
Table 1. Detailed cross section and sediment data are presented in Appendix I and II
respectively. Photos were taken at each cross section looking up and downstream, and
when an unusual condition existed, photos were taken of each bank. These photos are
presented in Appendix III.
ICI Quantitative Assessment
for R-2246 and U-2009
16
Buck Engineering
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Figure 12. Field Site Locations
Lake
1 0.5 0 1 2 3 4 5
Watershed zz? Miles
10.50 1 2 3 4 5 6 7
Kilometers
Table 1. Selected Cross Section and Sediment Sites.

Site
#

ocation Cross
Sectional
Area (sq.
ft.
Stream
Width
ft
Average
Depth
ft
Width to
Depth
Ratio

Stream
Class

BEHI
Rating
la Afton Run at Dogwood 9.5 9.5 1.0 9.4 E5 MOD
1c Afton Run at H 73 61.5 19.5 3.2 6.2 E5 MOD
1d Afton Run at Poplar Tent 57.8 19.0 3.0 6.3 G4/5 V.HIGH
1 b Afton Run at Trinity Church 19.7 12.6 1.6 8.0 Gc4/5 HIGH
2a-1 Coddle Ck UT at Enochville 18.1 9.0 1.9 4.7 E5 MOD
2f-1 Coddle Ck UT at H 49 25.3 14.3 1.8 8.1 E4 HIGH
2b-1 Coddle Ck UT at Lon briar 54.5 18.0 3.0 6.0 E5 MOD
2c Coddle Ck at Archer Rd 166.6 40.5 4.1 9.9 Gc5 MOD
2e Coddle Ck at H 29 358.4 53.9 6.7 8.1 E5 MOD

2b-1 Coddle Ck at Patterson Farm
Rd
77.6
25.6
3.0
8.4
Gc5
MOD
2d Coddle Ck at Poplar Tent 276.0 52.2 5.3 9.9 E5 HIGH
2a Coddle Ck at Teeter 72.3 23.1 3.1 7.4 Gc5 MOD

3a East Fork Coddle Ck at Unity
Ch.
49.4
25.9
1.9
13.6
F5
MOD
4b-1 Irish Buffalo UT at Azalea 38.0 22.1 1.7 12.8 F5 V.HIGH
4b-2 Irish Buffalo UT at Oakwood 47.0 17.4 2.7 6.4 Gc5 V.HIGH
4a Irish Buffalo at Saw Rd 40.5 18.3 2.2 8.3 Gc5 MOD
4c Irish Buffalo Ck at Hyyy 73 125.3 37.4 3.4 11.2 Gc5 MOD

4b Irish Buffalo Ck at Mooresville
Rd
130.4
28.8
4.5
6.4
E5
MOD
5d-1 Mill Ck UT at Drakestone 17.3 9.9 1.8 5.6 E5 LOW
5c Mill Ck at Mooresville Rd 76.2 26.4 2.9 9.2 E5 MOD
5a Mill Ck at Smith Rd 14.6 14.6 1.0 14.6 Bc4/3 LOW
5d Mill Ck at Stirewalt 58.5 23.1 1.8 12.9 E5 MOD
5d-1 Mill Ck at Wright Rd 31.3 20.1 1.6 12.9 F5 MOD
6c Park Ck at Plum 54.3 20.1 3.4 5.9 E5 HIGH
6a Park Ck at Smith 20.0 12.2 1.6 7.5 E5 LOW
6b Park Ck at Wright 25.1 13.6 1.8 7.4 E5 LOW
7a Wolf Meadow at H 29 7.9 5.8 1.4 4.3 E4/3 MOD
7b Wolf Meadow at Roberta 62.9 23.4 2.7 8.7 E5/1 LOW
4.1.4 Other Data Sources
Other data required for model calibration and implementation were secured and are
described below.
Weather station data were obtained from the Salisbury, NC National Weather Service
station. This weather station is the closest to the Project Area (Figure 13), is in the same
geophysiographic region, and has a similar altitude. Weather statistics over the past 91
years from this site were used as a source to generate simulated weather for model runs.
ICI Quantitative Assessment 18 Buck Engineering
for R-2246 and U-2009
' ALLEGHANY
ASHE
Transou
Elev = 1005.80 meters
WILKES
YADKIN
STOKES
Reidsville 2NW
Elev = 271.30 meters
CASWELL
GUILFORD
ALAMANCE
Winston-Salem WB AP
Elev = 295.70 meters
ALEXANDER / I DAVIE
IREDELL
:ATAWBA
ROWAN.?
Hickory Airways
Elev = 347.50 meters
LINCOLN Kanna olis
Concord
CABARRUS
GASTON
MECKLENBUR'G-
Charlotte
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Legend
• Weather Station
County Boundary
Municipality Boundary
Study Area
DAVIDSON Siler City
Elev = 192.00 meters
1 RANDOLPH
Salisbury
Elev = 231.60 meters
CHATHAM 1
STANLY MONTGOMERY ` MOORE
}
RICHMOND
ANSON
A- L,
Laurinburg
Elev = 70.10 meters SCOTLAND
OF NORTH SRO
* North Carolina Department of Transportation
Project Development & Environmental
Analysis Branch
P
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Figure 13. Weather Stations
10 5 0 10 20 3
files
10 5 0 10 20 30 40 5-:
ilometers

Because current detailed soils information is not available for the entire project area,
general soils were used. Four distinct regions of soil types are located within the Bypass
watershed (Figure 14).
Two reservoirs in the watershed were modeled both because they have the potential to
mitigate downstream sediment and nutrient pollution and because they may be impacted
by the Bypass (Figure 15). Model parameters for the two reservoirs are presented in
Table 2.
Table 2. Reservoir Data
Coddle Creek
Reservoir
Kanna olis Lake
Surface area to emergency spillway 607.03 116.95
Volume to emergency spillway 18927060 5110306
Surface area to principal spillway 526.09 116.95
Volume to principal spillway 15141650 5110306
Average volume Full Pond Full Pond
Average amount withdrawn each day 0.2409695 0.3427901
Monthly target reservoir storage Full Pond Full Pond
Minimum daily outflow 0.1699011 0.1314379
Average daily outflow 0.1699011 0.1862037
Two small discharges of treated waste are permitted under the National Pollutant
Discharge Elimination System (NPDES) in the Bypass watershed (Figure 15). Both of
these facilities are associated with water treatment plant back wash and have limited
' effect on water quality.
' 4.2 Model Calibration
Stream channel segmentation was based upon the DEM and existing stream hydrography.
ESRI GIS software Spatial Analyst was use to determine the location all channels with
' drainage areas greater than one square mile. Reaches were linked at their confluences
with routing nodes (Figure 16). A total of 35 stream miles in 80 reaches were modeled
within the 117 square mile watershed. The 80 sub-watersheds associated with each of
' these reaches are shown in Figure 17.
Current land use and soils data were overlain with the 80 sub-watershed boundaries to
' create tables of the hydraulic response units (HRUs), unique combination of soil and land
use for each sub-watershed. The SWAT model was then parameterized with the spatial
data described above.

Channel dimensions, Manning's n, stream cover and bank erodibility parameters were
entered for each stream reach to reflect values observed and recorded in the field.
ICI Quantitative Assessment 20 Buck Engineering
for R-2246 and U-2009

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NC083
1 0.5 0 1 2 3 4 5
NCO86 Miles
10.50 1 2 3 4 5 6 7
Kilometers

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Legend North Carolina Department of Transportation
2 Project Development & Environmental
Analysis Branch
O Water Intake Streams ,,,DNS
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Figure 15. Water Withdrawals and Discharges
Watershed
1 0.5 0 1 2 3 4 5
Miles
10.50 1 2 3 4 5 6 7
Kilometers
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North Carolina Department of Transportation
Project Development & Environmental
Streams Analysis Branch
Watershed -

® Reservoirs Figure 16. Modeled Stream Segments
® Model Nodes 1 0.5 0 1 2 3 4 s
Miles
1050 1 2 3 4 5 6 7
Kilometers
°a
t
t t °T«o ;
North Carolina Department of Transportation
Legend Project Development & Environmental
Z Analysis Branch
Mfti c
Streams
Lake Figure 17. Modeled Watersheds
Watershed
1 0.5 0 1 2 3 4 5
Miles
1050 1 2 3 4 5 6 7
Kilometers

d

1

The model was run for a fifteen year period of simulated weather. The initial mean
annual runoff value from the model was 0.85 cubic feet per second (cfs) per year. This
compared favorably to the USGS estimate for the region of 1.05 cubic feet per second per
year (Giese and Mason, 1993). Because hydraulic processes are important to essentially
all model components, hydraulic calibration was achieve by minor global adjustment of
the runoff curve numbers so that a final modeled mean annual runoff value of 1.05 was
achieved. This resulted in an average flow of 163 cfs at the outlet of Coddle Creek and
82 cfs the Irish Buffalo Creek outlet.
ICI Quantitative Assessment 25
for R-2246 and U-2009
Buck Engineering
' 4.3 Results and Discussion
Results of the analysis suggest that as development continues in the project area to the
projected 2015 build out densities, streams will be impacted by higher flows and higher
' sediment and nutrient concentrations. However, modeling results indicate that
construction of the Bypass will result in only marginal increases in sediment and nutrient
concentrations over the No Build option.
' Increased impervious surface from development and the Bypass project itself will
increase stream flow below the project by an average of 4.7%. Only a small increase in
' average stream flow of approximately I% is expected under the No Build scenario
(Figure 18). These small changes in stream discharge are a result of the fact that the
project area has already been developed to some extent and that large scale conversion of
' low density residential neighborhoods to highly impervious surfaces is not anticipated.
While changes in average stream flow of less than 5% are not large compared to changes
observed in many developing areas, it is possible that increased discharge may result in
' bank erosion and cause some streams to degrade. As 40% of surveyed stream reaches
were incised, increased stream flow may affect bank stability on many reaches (Table 1).
Efforts to protect mature riparian vegetation on stream banks throughout the watershed
' would be a key strategy in minimizing this impact.

The North Carolina Division of Water Quality (DWQ) has identified increased stream
flow from stormwater sources as a likely factor in determining existing water quality
' impairment in the watershed (NCDWQ 2003). Under Phase II of stormwater rules the
Concord, Kannapolis and Cabarrus County will be required obtain NPDES permits for
there stormwater systems. To compliment this regulatory action DWQ has recommended
' that the Irish Buffalo Creek watershed be prioritized for buffer acquisition (NCDWQ
ICI Quantitative Assessment 26 Buck Engineering
' for R-2246 and U-2009
Figure 18. Predicted Discharge for Three Scenarios.

1

1

1
2003). Results of this study suggest that extending the priority buffer acquisition area to
the Coddle Creek watershed would result in significant water quality improvement.
Results of the sediment analysis suggest construction of the Bypass will result in an
increase in sediment of 7.0% as compared to the No Build option. A significant increase
in sediment load of more than 30% is expected in the watershed with or with out the
Bypass as a result of ongoing development activities (Figure 19). As streams in the
watershed are presently listed on the 303(d) list of impaired waters it would seem prudent
to encourage the targeting of sediment BMPs to control sediment (including stream
restoration) in the project area under either the Build or No Build option.
Model results predict an increase in total nitrogen load of 5.3% as compared to the "No
Build" option. However, most of this increase in load is attributable to increased flow as
the model predicts an increase in total nitrogen concentration of less than I% (Figure 20).
This suggests that the impact of the Bypass on instream water quality as a result of total
nitrogen will be quite small.
The model results also indicate a large increase (> 30%) in sediment loading can be
expected in 2015 with or without the project unless significant steps are taken to control
streambank erosion. The WRP has identified project watershed as an area with a great
need and opportunity for stream and wetland restoration (NCDWQ 2003). The
watershed will be given higher priority than non-targeted watersheds for the
implementation of WRP restoration projects. Results of this study confirm that
streambank instability is a major water quality concern for this basin and suggest that
' without intensive stream restoration efforts in the Coddle Creek watershed sediment
impairment will continue. Many of the field sites visited in this study may be suitable
sites for stream restoration and the data presented in Appendices I and II can be used to
suggest potential restoration sites.
ICI Quantitative Assessment 27 Buck Engineering
' for R-2246 and U-2009
Figure 19. Predicted Sediment Loading for Three Scenarios.

1

i

1

1

Model results predict an increase in total nitrogen load of 5.3% as compared to the "No
Build" option. However, most of this increase in load is attributable to increased flow as
the model predicts an increase in total nitrogen concentration of less than I% (Figure 20).
This suggests that the impact of the Bypass on instream water quality as a result of total
nitrogen will be quite small. Further, as the project area is generally downstream of the
two nearby public water supply reservoirs, water quality in public drinking supplies will
not be affected.
Figure 20. Predicted Nitrogen Loading and Concentration for Three Scenarios.
Total Nitrogen Loading and Concentration
Discharge for Three Scenarios
500000 - 1
- 0.9
450000 r
400000 0.8
350000 0.7
300000 0.6 ZZ
Load
N 250000 0.5
200000 u 0.4 E f Concentration
150000 : - 0.3
100000 0.2
50000 ?- 0.1
0 0
Current 2015 No 2015 Build
Year Build
Results of the nutrient analysis suggest construction of the Bypass will result in an
increase in total phosphorus load of 7.4% as compared to the "No Build" option.
However, much of this increase in load is attributable to increased flow as the model
predicts an increase in total nitrogen concentration of less than 3% (Figure 21).
For all three scenarios phosphorus concentrations are high. As phosphorus has its
greatest impact on water quality in lakes and ponds where excessive algal growth may
occur there is some concern nutrient increase may impact the Mill Creek arm of the
Coddle Creek Reservoir. DWQ's designation of much of this tributary as a water Supply
Critical area will limit the effect of future development on water quality in the reservoir.
However, Nutrient BMPs, especially for phosphorus, would be beneficial in this
watershed.
ICI Quantitative Assessment 28 Buck Engineering
' for R-2246 and U-2009

Figure 21. Predicted Phosphorus Loading and Concentration for Three Scenarios.
Total Phosphorus Loading and Concentration
Discharge for Three Scenarios
120000 - - 0.25
100000 0.2
80000 ?
0.15

y
60000 Load
0 1 E -+- Concentration
40000
0
05
20000 .
0 0
Current 2015 No 2015 Build
Year Build
ICI Quantitative Assessment 29
for R-2246 and U-2009
Buck Engineering

' 5 Conclusions
Conclusions of the report:
'
• Water quality in the Bypass watershed may be impacted by increased sediment
in 2015 due to development regardless of whether the Build or No Build option
' is selected.
• Many channelized streams in the basin are at risk of degradation and bank
erosion if riparian vegetation were to be removed.
' • Water quality in the watershed's two public drinking water supplies will not be
affected by the project.
• While nutrient loading will be increased by the Build option instream nitrogen
' concentrations will be essentially unchanged by the project and phosphorus
concentrations will increase by less than 3%. The increase in nutrient
concentrations alone does not threaten water quality in the watershed.
' • Increased nutrient loading under both the Build and No Build option are
predicted to impact the eutrophic condition of Mill Creek arm of the Coddle
Creek Reservoir. Mill Creek is not a 303(d) listed stream.

I Recommendations to Mitigate Projected Impacts:

' • A joint effort between the Town of Kannapolis, NC Division of Water Quality
and Cabarrus County to address the reduction of sediment and nutrient loading
from development could result in the overall amelioration of water quality in the
area.
• Sediment and nutrient best management practices are recommended in this
watershed.
' • It is recommended the NC Wetlands Restoration Program's buffer acquisition
priority status of Irish Buffalo Creek be extended to the Coddle Creek
watershed below the Coddle Creek Reservoir.
' • Since the increased sediment load will be the result of stream instability, the
Coddle Creek drainage area within the study area should be targeted for stream
restoration.
t

ICI Quantitative Assessment 30 Buck Engineering
for R-2246 and U-2009

' 6 References
' Bunte, K. and S. Abt. 2001. Sampling surface and subsurface particle-size distributions
in wadable gravel- and cobble-bed streams for analyses in sediment transport,
hydraulics, and streambed monitoring. Gen. Tech. Rep. RMRS-GTR-74. Fort
' Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain
Research Station. 428 p.
' Giese, G.L., Mason, Robert R. Jr. 1993. Low-Flow Characteristics of Stream in North
Carolina. USGS Water-Supply Paper 2403. 29 p.
' Harman, W.A., G.D. Jennings, J.M. Patterson, D.R. Clinton, L.O. Slate, A.G. Jessup, J.R.
Everhart, and R.E. Smith. 1999. Bankfull Hydraulic Geometry Relationships for
North Carolina Streams. Wildland Hydrology. AWRA Symposium Proceedings.
' Edited by: D.S. Olsen and J.P. Potyondy. American Water Resources Association.
June 30-July 2, 1999. Bozeman, MT.

Neitsch, S.L., Arnold, J.G., Kiniry, J.R., Williams, J.R., King, K.W. 2002. Soil and
Water Assessment Tool Theoretical Documentation: Version 2000. Texas Water
Resources Institute, College Station, Texas. GSWRL Report 02-01.
North Carolina Division of Water Quality, 2003. Yadkin-Pee Dee River
Final Basinwide Water Quality Plan, Raleigh, NC.
President's Council on Environmental Quality. CEQ Guidance "Considering Cumulative
Effects Under the National Environmental Policy Act." 1997.
Rosgen, D.L. 1996. Applied River Morphology. Wildland Hydrology Books, Pagosa
Springs, CO.
ICI Quantitative Assessment 31 Buck Engineering
' for R-2246 and U-2009

Appendix I

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1

Appendix II
Sediment Analysis

i
i
Appendix II - Sediment Analysis
Afton Run at Dogwood
Riffle Grab Sample Analysis
100
90
o-O 80
c 70
a?
60
a 50
d
40
a
£ 30
V 20
--fir- Reach Total
10

0
12.5 16
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3
Particle Size - Finer Than (mm)
D50 = 0.49mm
Afton Run at Hwy 73
Riffle Grab Sample Analysis
100
90
80
E 70
L 60
0- 50
40
30
j 20
10
0
- Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm) D50 = 1.01mm
i
i

Afton Run at Poplar Tent Rd
Pebble Count Data
100- - 00000-199091,
90-
80-
70-
60-
IL -?-Riffle
50
40
ca
3 30
U 20
10
0
0.062 0.25 1 4 8 16 32 64 128 256 512 2048
Particle Size - Finer Than (mm)
Afton Run at Poplar Tent Rd
Pebble Count Data
35 100
30 90
80 c
25
c 70 L
L 20 f? Class Percent 60 a
a Cumulative Percent 50 > c
15 U
ai 40 .
A

U 10 30 E
20 U
5
10
0 0

< .125 .50 - 2.0 - 5.7 - 11.3 22.6 45 - 90 - 180 - 362 - 1024
.062 -.25 1.0 4.0 8.0 - - 32 64 128 256 512 -
16.0 2048
Particle Size Class (mm)

Afton Run at Trinity Church Rd
Riffle Grab Sample Analysis
100
90
o .. 80
70
60
50
40
30
V 20
10
0
- & Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3
Particle Size - Finer Than (mm)
12.5 16
1 D50 = 0.46mm
Afton Run at Trinity Church Rd
Pool Grab Sample Analysis
100
90
80
70
m
60
CL 50
40
30
E 20
V 10
0
--& - Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm)

Coddle Creek at Archer Road USGS Station
Riffle Grab Sample Analysis
100
90
80
a=i 70
y 60
a 50
d
40
30
E 20
v 10
0
-6 Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5
Particle Size - Finer Than (mm)
16
D50 = 0.87mm
Coddle Creek at Hwy 29
Riffle Grab Sample Analysis
100
90
0 80
c 70
d
L 60
m
m 50
40
30
?j 20
10
0
--A Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 . 6.3
Particle Size - Finer Than (mm)
12.5 16
D50 = 0.95mm
Coddle Creek at Patterson Farm Rd
Riffle Grab Sample Analysis
100
90
80
70
y 60
CL 50
d
40
?a
30
20
U 10
0
-6 Reach Total I
0.062 0.125 0.25 0.50 1.0 1.4 2.0 4.8
Particle Size - Finer Than (mm)
6.3 12.5 16.0
D50 = 0.98mm
Coddle Creek at Poplar Tent Rd
Riffle Grab Sample Analysis
100
90
80
70
60
CL 50
d
40
30
20
U 10
0
& Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3
Particle Size - Finer Than (mm)
12.5 16
D50 = 0.77mm

Coddle Creek at Poplar Tent Road
Pool Grab Sample Analysis
100
90
80
Z
d 70
d 60
a 50
m
40
?a
30
20
V 10
0
--t-- Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm)
Coddle Creek at Teeter Rd
Riffle Grab Sample Analysis
100
90
80
70
60
a 50
40
?a
30
V 20
10
0
-A Reach Total I
0.062 0.125 0.25 0.5 1 1:4 2 4.75 6.3
Particle Size - Finer Than (mm)
12.5 16
D50 = 1.48mm
Un-named Tributary to Coddle Creek at Enochville
Riffle Grab Sample Analysis
100
90
80
c 70
d
60
a 50
d
40
is
E 30
c1 20
10
0
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3
Particle Size - Finer Than (mm)
-A-- Reach Total I
12.5 16
D50 = 0.71 mm
Un-named Tributary to Coddle Creek at Hwy 49
Riffle Grab Sample Analysis
100
90
?dl 80
70
60
50
d
40
R
S 30
5 20
U
10
0
- A Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3
Particle Size - Finer Than (mm)
12.5 16
D50 = 4.52mm
1
1
1
1
1
1
1
1
1
1
Un-named Tributary to Coddle Creek at Hwy 49
Riffle Pebble Count
100
90
80
70
d 60 ?-- Reach Total
50
d
40
«.
A 30_Jr
-
0
E 20
V 10-
0
0.062 0.25 1 4 8 16 32 64 128 256 512 2048
Particle Size - Finer Than (mm)
Un-named Tributary to Coddle Creek at Hwy 49
Riffle Pebble Count
16 1 1 1 0 0 0 - - 100
14 90

12 80 5
LL
70
i 10- oro? ® Class Percent 60 L
a 8 -0--Cumulative Percent 50 a
9
y 6 40
c
o
v 30 `-°
4
20 =
2 U
10
0 0

< .125 .50- 2.0 - 5.7 - 11.3 22.6 45 - 90 - 180 - 362 - 1024
.062 -.25 1.0 4.0 8.0 - - 32 64 128 256 512 -
16.0 2048
Particle Size Class (mm)

Un-named Tributary to Coddle Creek at Longbriar
Riffle Grab Sample Analysis
100
90
80
70
60
IL 50
d
40
30
20
V
10
0
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3
Particle Size - Finer Than (mm)
- A Reach Total I
12.5 16
D50 = 1.47mm
East Fork Coddle Creek at Unity Church Rd
Riffle Grab Sample Analysis
100
90
80
70
60
a 50
40
R
30
V 20
10
-[- Reach Total I
0
0.062 0.125 0.25 0.5 1 1.4 2 4.75
Particle Size - Finer Than (mm)
6.3 12.5 16
D50 = 1.53 mm
i

Irish Buffalo at Hwy 73
Riffle Grab Sample Analysis
100
90

0 80

70

60

a
50 --A- Reach Total

40
-
A
= 30

E -

20

10

0
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm) D50 = 1.46mm
Irish Buffalo Creek at Mooresville Road
Riffle Grab Sample Analysis
100
90
80
70
60
n. 50
.. 40
R
30
20
U
10
0
- 6 Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm) D50 =1.66mm

i
i
Irish Buffalo at Saw Rd
Riffle Grab Sample Analysis
100
90
>_ 80
E 70
32 60
CL 50
40
30
V 20
10
0
-&- Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3
Particle Size - Finer Than (mm)
12.5 16
D50 = 1.33mm
100
90
80
Un-named Tributary to Irish Buffalo at the end of Azelea Ave
Riffle Grab Sample Analysis
= 70
d
60
d
CL 50
40
ca
5 30
V 20
10
0
-A - Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm) D50 = 1.65mm

100
90
80
..
C 70
60
CL 50
d
40
30
20
v 10
0
Un-named Tributary to Irish Buffalo at the end of Azelea Ave
Pool Grab Sample Analysis
--&- Reach Total
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm)
Un-named Tributary to Irish Buffalo at Oakwood Rd.
Riffle Grab Sample Analysis
100
90
80
70
60
a 50
:. 40
:5 30
U 20
10
0
- is Reach Total
0.062 0.125 0.25 0.5 1 1.4 2 4.75
. Particle Size - Finer Than (mm)
6.3 12.5 16
D50 = 1.60mm

Un-named Tributary to Irish Buffalo at Oakwood Dr.
Pool Grab Sample Analysis
100
90
80
70
60
50
d
40
30
3 20
U
10
0
-& - Reach Total
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm)
Mill Creek at Mooresville Road
Riffle Grab Sample Analysis
100
90
0 80
70
m 60 --t -Reach Total
a. 50
40
ca
30
20
V 10
0
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm)
D50 = 1.31 mm
Mill Creek at Smith Rd
Riffle Pebble Count
100
.. 90
OAZ
80-
70-
60-
50- ' ?--Riffle
d
40-
's 30-
E 20
U 10
0
0.062 0.25 1 4 8 16 32 64 128 256 512 2048
Particle Size - Finer Than (mm)
Mill Creek at Smith Rd
Riffle Pebble Count
18 100
16 90

14 80 =

12 70 LL

10 Fiiiiiiiiiiiii Class Percent 60
a --t-Cumulative Percent 50 a
8 d
40

U 6 i°
30 5
4- E
20 V
2
10
0
0
< .125. .50 - 2.0 - 5.7 - 11.3 22.6 45 - 90 - 180 - 362 - 1024
.062 -.25 1.0 4.0 8.0 - - 32 64 128 256 512 -
16.0 2048
Particle Size Class (mm)
1
1
1
1
1
Mill Creek at Stirewalt Rd
Riffle Grab Sample Analysis
100
90
80
70
60
CL 50
'.?-. 40
A
m 30
V 20
0
10
-6- Reach Total I I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3
Particle Size - Finer Than (mm)
12.5 16
D50 = 1.29mm
Mill Creek at Wright Rd.
Riffle Grab Sample Analysis
100
90
80
O
= 70
L 60
CL 50
4- 40
E 30
U 20
10
0
-h- Reach Total I I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm) D50 = 1.61mm
1
1
1
1
1
1
1
1
1
1
Un-named Tributary to Mill Creek at Drakestone Rd
Riffle Grab Sample Analysis
100
90
o _ 80
70
60
IL 50
40
ea
30
V 20
0
10
-- - Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm) D50 = 0.53mm
Park Creek at Plum Rd
Riffle Grab Sample Analysis
100
90
80
++
E 70
60
a 50
d
40
E 30
20
V 10
0
--6 - Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75
Particle Size - Finer Than (mm)
6.3 12.5 16
D50 = 0.88mm
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Park Creek at Plum Rd
Pool Grab Sample Analysis
100
90
^ 80
C 70
d
L 60
a 50
d
'A 40
E 30
Q 20
10
0
--A- Reach Total I I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
. Particle Size - Finer Than (mm)
Park Creek at Smith Rd
Riffle Grab Sample Analysis
100
90
0 80
c 70
d
60
a 50
d
40
30
j 20
10
0
-A-- Reach Total I
0.062 0.125 0.25 0.5 1 1.4 2 4.75 6.3 12.5 16
Particle Size - Finer Than (mm) D50 = 1.32mm

d

1

1

Wolf Meadow Branch at Roberta Road
Riffle Pebble Count
14 100
12 90 c

80 U.
10
4
5 ® Class Percent
8
42 -4-Cumulative Percent a
a
6
U 40

U 4 30

20 E
2
10 ?j
0
0
< .125 .50 - 2.0 - 5.7 - 11.3 22.6 45 - 90 - 180 - 362 - 1024
.062 -.25 1.0 4.0 8.0 - - 32 64 128 256 512 -
16.0 2048
Particle Size Class (mm)

7

Appendix III
Photo Log

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Afton Run @ Dogwood Rd - Looking Downstream Afton Run @ Dogwood Rd - Right Bank

S 33

Afton Run @ Dogwood Rd below culvert Afton Run @ Dogwood Rd- Left Bank
P
1
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-

46
Afton Run @ Hwy 73 - Left Bank Afton Run @ Hwy 73 - Looking Downstream
'AQ

ion.

Afton Run @ Hwy 73 - Right Bank Afton Run @ Poplar Tent - Looking Upstream

r" t4 ^?a a ,r` .
ti 4- Sr
i

Afton Run @ Poplar Tent - Left Bank Afton Run @ Trinity Church Rd - Pool Left Bank
r+{? 9

Afton Run @ Trinity Church Rd - Pool Looking Afton Run @ Trinity Church Rd - Riffle Looking
Downstream Downstream

Afton Run @ Trinity Church Rd - Riffle Left Bank Afton Run @ Trinity Church Rd - Riffle Right Bank
?. OF
?
s
y a ,;

A?? a

Afton Run @ Trinity Church Rd - Riffle Right Bank2 Coddle Ck @ Archer Rd USGS - Left Bank
Lk. '4 1
1
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t a
Coddle Ck @ Archer Rd USGS -Looking Downstream s
Coddle Ck @ Archer Rd USGS - Looking Upstream
Coddle Ck @ Archer Rd USGS - Right Bank
Coddle Ck @ Hwy 29 - Looking Downstream
Coddle Ck @ Patterson Farm Rd - Looking Downstream
Coddle Ck @ Hwy 29 - Left Bank
Coddle Ck @ Patterson Farm Rd - Left Bank
Coddle Ck @ Hwy 29 - Right Bank
Coddle Ck @ Patterson Farm Rd - Looking Upstream
Coddle Ck @ Poplar Tent Pool Right Bank
Coddle Ck @ Patterson Farm Rd - Right Bank
Coddle Ck @ Poplar Tent Riffle - Left Bank
Coddle Ck @ Poplar Tent Pool - Looking Downstream
Coddle Ck @ Poplar Tent Pool - Left bank
Coddle Ck @ Poplar Tent Pool - Looking Upstream
Coddle Ck @ Teeter Rd - Looking Upstream
Coddle Ck @ Poplar Tent Riffle - Looking DS
Coddle Ck @ Teeter Rd - Looking Downstream
Coddle Ck @ Teeter Rd - Right Bank
Coddle Ck @ Teeter Rd - Left Bank

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Coddle Ck's Unnamed Trib @ Hwy 49 - Left Bank Coddle Ck's Unnamed Trib C Hwy 49 - Looking
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Coddle Ck's Unnamed Trib @ Longbriar - Looking
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East Fork Coddle Ck @ Unity Ch Rd - Looking
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Coddle Ck's Unnamed Trib @ Longbriar - Looking
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East Fork Coddle Ck @ Unity Ch Rd - Right Bank
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Irish Buffalo Ck @ Hwy 73 Pool - Looking Downstream
Irish Buffalo Ck @ Hwy 73 Riffle - Left Bank
Irish Buffalo Ck @ Hwy 73 Pool - Left Bank
Irish Buffalo Ck @ Hwy 73 Pool - Right Bank
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Irish Buffalo Ck's Unnamed Trib @ Oakwood Rd -Riffle Mill Ck @ Mooresville Rd - Left Bank
Right Bank

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Mill Ck @ Stirewalt - Left Bank
Mill Ck @ Stirewalt - Riffle Looking Downstream
Mill Ck @ Wright Rd - Left Bank
Mill Ck @ Stirewalt - Looking Upstream
Mill Ck @ Stirewalt - Right Bank
Mill Ck @ Wright Rd - Looking Downstream
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STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
MICHAEL F. EASLEY
GOVERNOR
NC Division of Water Quality
1650 Mail Service Center
Raleigh, NC 27699-1650
Attention: Mr. John Dorney
Wetlands/401 Supervisor
Dear Sir,
August 15, 2003
LYNDo TIPPETT
SECRETARY

A U G -. 8 ?UU:i

Subject: R-2246 C Response to DWQ ON HOLD Letter; DWQ Project No.
030845
On July 9, 2003 a permit application for TIP Project no. R-2246 C (DWQ Project no.
030845) was submitted to DWQ. This letter addresses each item in your July 11, 2003,
"on hold letter regarding the widening of the Concord-Kannapolis Westside Bypass. A
copy is attached for your convenience.
1. The use of the Ecosystem Enhancement Program is now permitted. A Memorandum
of Agreement was signed on July 22, 2003 with the North Carolina Department of
Environment and Natural Resources.
2. The qualitative Indirect and Cumulative Effects (ICE) assessment which deals with
future development was delivered to DWQ on July 29, 2003. The quantitative
Indirect and Cumulative Impacts (ICI) assessment which deals with the impacts to the
watershed is being written by Buck Engineering. We estimate that the document will
be available for review by August 22, 2003.
3. NCDOT Hydraulic Design Unit has re-designed the two crossings of the unnamed
tributaries to Coddle Creek, a 303(d) listed stream, to provide pre-treatment of the
storm water runoff before entering the streams. The new design provides wider grass
swales and the elimination of riprap in order to use permanent soil reinforcing matting
(PSRM). The discharge from the pipe exceeds the allowable quantity of water to use
preformed scour holes, and the topography is too steep to use detention basins or level
spreaders. Wider grass swales and the use of PSRM instead of riprap will perform the
same function as preformed scour holes and detention basins. This design will not
exacerbate the cause (urban runoff/storm sewers) of the 303(d) listing for Coddle
Creek.
MAILING ADDRESS:
NC DEPARTMENT OF TRANSPORTATION
PROJECT DEVELOPMENT AND ENVIRONMENTAL ANALYSIS
1548 MAIL SERVICE CENTER
RALEIGH NC 27699-1548
TELEPHONE: [phone]
FAX: [phone]
WEBSITE. WWWWCDOT.ORG
LOCATION:
TRANSPORTATION BUILDING
1 SOUTH WILMINGTON STREET
RALEIGH NC

The revised permit drawings and the revised half size plans show details "N", "M",
and "L". These details correspond to "D", "J", and "B" on the original drawings.
Details "N", "M", and "L" have PSRM in the bottom of the lateral base ditches.
Details "D", "J", and "B" have class B riprap in the bottom of the lateral base ditches.
Copies of the revised hydraulic drawings are attached as requested.
If you have any further questions, please contact Chris Underwood at [phone].
Sincerely,
cc:
Tn . q&-q 1/01
Gregory J. Thorpe, Ph.D, Manager
Project Development & Environmental Analysis Branch
Mr. John Dorney, Division of Water Quality
Ms. Marella Buncick, USFWS
Ms. Marla Chambers, NCWRC
Mr. Jay Bennett, P.E., Roadway Design
Mr. Omar Sultan, Programming and TIP
Ms. Debbie Barbour, P.E., Highway Design
Mr. David Chang, P.E., Hydraulics
Mr. Greg Perfetti, P.E., Structure Design
Mr. Mark Staley, Roadside Environmental
Mr. John Sullivan, FHWA
Mr. B. G. Payne, P.E., Division Engineer
Mr. Larry Thompson, DEO
Mr. David Franklin, USACE, Wilmington
Mr. William Gilmore, P.E., EEP, Raleigh

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0, WAIF Michael F. Easley, Governor
?C 9Q William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
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r Alan W. Klimek, P.E., Director
7

.? Division of Water Quality

Coleen H. Sullins, Deputy Director
?4J)
(e ,
Division of Water Quality
U/

July 11, 2003
Cabarrus County
DWQ Project No. Q2U45
TIP Project
Widening of SR 1430 from SR 1431 to SR 1555 (Concord-Kannapolis ae typass
CERTIFIED MAIL: Return receipt requested
UL l g ?003
J. Thorpe, Ph.D., Manager
Mr. Gregory
J
NCDOT Project Development & Environmental Analysis Branch Q
1548 Mail Service Center .0o pMs?p pYS
Raleigh, NC 27699-1548 ?G?0 r DE pQ?Sy
N'?EN AL ANP??
Dear Mr. Thorpe:
The Division of Water Quality staff has reviewed your submittal of an application for a §401 Water
Quality Certification for the aforementioned project dated July 18, 2003 (received July 10, 2003). This
project will remain on hold until:
1.. Issues relating to use of the Ecosystem Enhancement Program (EEP) have been resolved.
To date, an MOU has not been signed with DENR. Until that MOU has been developed
and signed, DWQ will be unable to permit the utilization of the EEP for this project. Use
of the Wetlands Restoration Program (WRP) to provide compensatory mitigation for this
project is acceptable to DWQ.
2. Receipt of the Indirect and Cumulative Impacts Study Report by DWQ.
3. Coddle Creek and its unnamed tributaries are on the §303(d) list of impaired waters for sediment.
The sources are urban runoff and storm water. There are two crossings on this project. DWQ
requests that NCDOT Hydraulic Design Unit re-design these two crossings to provide pre-treatment
of the storm water runoff before entering the streams. Options appear to be a pre-formed scour hole
or a detention basin.
Pursuant to 15A NCAC 2H.0507(a)(3), the permit application is placed on hold until we are supplied the
necessary information. Furthermore, until the information is received by the NC Division of Water
Quality, we request (by copy of this letter) that the US Army Corps of Engineers continue to place the
permit application on hold.
We look forward to working with you.to expedite the processing of your permit application. If you, have
any questions, please telephone Ms. Cynthia Van Der W?ele at 919.733.1786.
R. Dorsey
r Quality Certific, tion Program
cc: Wilmington District Corps of Engineers I
Steve Lund, Corps of Engineers Asheville Field Office
Coleen Sullins, DWQ
NCDWQ Mooresville Regional Office AAM
.File opy.
? 'D t
N. C. Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
[phone] (phone), 919-733-6893 (fax), (http://h2o.enr.state.nc.us/nowetiands)
Customer Service #: 1-877-623-6748
CONTRACT: C200777
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Michfael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
r Alan W. Klimek, P.E., Director
Division of Water Quality
1 _ Coleen H. Sullins, Deputy Director
Division of Water Quality
July 11, 2003
Cabarrus County
DWQ Project No. 030845
TIP Project No. R-2246C
Widening of SR 1430 from SR 1431 to SR 1555 (Concord-Kannapolis Westside Bypass)
CERTIFIED MAIL: Return receipt requested
Mr. Gregory J. Thorpe, Ph.D., Manager
NCDOT Project Development & Environmental Analysis Branch
1548 Mail Service Center
Raleigh, NC 27699-1548
Dear Mr. Thorpe:
The Division of Water Quality staff has reviewed your submittal of an application for a §401 Water
Quality Certification for the aforementioned project dated July 18, 2003 (received July 10, 2003). This
project will remain on hold until:
1. Issues relating to use of the Ecosystem Enhancement Program (EEP) have been resolved.
To date, an MOU has not been signed with DENR. Until that MOU has been developed
and signed, DWQ will be unable to permit the utilization of the EEP for this project. Use
of the Wetlands Restoration Program (WRP) to provide compensatory mitigation for this
project is acceptable to DWQ.
2. Receipt of the Indirect and Cumulative Impacts Study Report by DWQ.
3. Coddle Creek and its unnamed tributaries are on the §303(d) list of impaired waters for sediment.
The sources are urban runoff and storm water. There are two crossings on this project. DWQ
requests that NCDOT Hydraulic Design Unit re-design these two crossings to provide pre-treatment
of the storm water runoff before entering the streams. Options appear to be a pre-formed scour hole
or a detention basin.
Pursuant to 15A NCAC 21-1.0507(a)(3), the permit application is placed on hold until we are supplied the
necessary information. Furthermore, until the information is received by the NC Division of Water
Quality, we request (by copy of this letter) that the US Army Corps of Engineers continue to place the
permit application on hold.
We look forward to working with you to expedite the processing of your permit application. If you have
any questions, please telephone Ms. Cynthia Van Der W4ele at 919.733.1786.
R. Dorney
r Quality Certific tion Program
cc: Wilmington District Corps of Engineers I
Steve Lund, Corps of Engineers Asheville Field Office
Coleen Sullins, DWQ
NCDWQ Mooresville Regional Office
i e opy,
N. C. Division of Water Quality, 401 Wetlands Certification Unit,
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address)
2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location)
[phone] (phone), 919-733-6893 (fax), (http://h2o.enr.state.nc.us/ncwetlands)
Customer Service #: 1-877-623-6748

NOW