20090385 Ver 1_Application_20090408

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STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
BEVERLY EAVES PERDUE
GOVERNOR
U. S. Army Corps of Engineers
Regulatory Field Office
151 Patton Avenue, Room 208
Asheville, NC 28801-5006
ATTN: Mr. Steve Chapin
NCDOT Coordinator
Dear Sir:
EUGENE A. CONTI, JR.
SECRETARY
&@ lr IJ
A
PR 2009
KE4R- TER
UNDSgt sTDR nt'411:•4HI M
090385-
Subject: Application for Section 404 Nationwide Permits 23, 33 and Section 401
Water Quality Certifications for the proposed replacement of Bridge No. 82
over Jacktown Creek on NC 226 in McDowell County, Federal Aid Project
No. BRSTP-226(10); Division 13; TIP No. B-4191
$570.00 debit WBS 33538. 1.1
The North Carolina Department of Transportation (NCDOT) proposes to replace Bridge No.
82 over Jacktown Creek on NC 226. There will be 85 feet (0.02 acres) of temporary surface
water impacts, 175 feet (0.04 acres) of permanent surface water impacts. Following
construction of the project, NCDOT will mitigate for 175 feet of permanent stream impacts
onsite at 1:1 ratio by restoring approximately 450 ft. of Jacktown Creek. The conceptual
mitigation plan for the restoration is attached. NCDOT will apply for a separate permit for
the onsite mitigation project and will include final mitigation design plans at that time. If for
any reason the mitigation cannot be obtained onsite, NCDOT will request mitigation from
the North Carolina Ecosystem Enhancement Program.
Please see enclosed copies of the Pre-Construction Notification (PCN), permit drawings,
design plans and Stormwater Management Plan for the above-referenced project. The
Categorical Exclusion (CE) was completed in March 2006 and the Right-of-Way
Consultation was completed in July 2008. Documents were distributed shortly thereafter.
Additional copies are available upon request.
This project calls for a letting date of September 15, 2009 and a review date of July 28,
2009.
MAILING ADDRESS:
NC DEPARTMENT OF TRANSPORTATION
PROJECT DEVELOPMENT AND ENVIRONMENTAL ANALYSIS
1598 MAIL SERVICE CENTER
RALEIGH NC 27699-1598
April 3, 2009
TELEPHONE: [phone]
FAX: [phone]
WEESITE: WWW.N000TORG
LOCATION:
4701 ATLANTIC AVENUE
SUITE 116
RALEIGH NC 27604
.
A copy of this permit application will be posted on the NCDOT Website at:
http://www.ncdot.org/doh/preconstruct/pe/. If you have any questions or need additional
information, please call Jennifer Harrod at [phone].
S' rely,
O"' Gregory . Thorpe, Ph.D.
Environmental Management Director, PDEA
w/attachment
Mr. Brian Wrenn, NCDWQ (5 copies)
Ms. Marla Chambers, NCWRC
Ms. Marella Buncick, USFWS
w/o attachment (see permit website for attachments)
Dr. David Chang, P.E., Hydraulics
Mr. Mark Staley, Roadside Environmental
Mr. Victor Barbour, P.E., Project Services Unit
Mr. Greg Perfetti, P.E., Structure Design
Mr. J.J. Swain, P.E., Division Engineer
Mr. Roger Bryan, DEO
Mr. Jay Bennett, P.E., Roadway Design
Mr. Majed Alghandour, P. E., Programming and TIP
Mr. Art McMillan, P.E., Highway Design
Mr. Scott McLendon, USACE, Wilmington
Mr. Vincent Rhea, PDEA
O?aF WATFgOG
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Office Use Only
Corps action ID no.
DWQ project no.
Form Version 1.3 Dec 10 2008
Pre-Construction Notification (PCN) Form
A. Applicant Information
1. Processing
1 a. Type(s) of approval sought from the

Corps:
® Section 404 Permit ? Section 10 Permit
1 b. Specify Nationwide Permit (NWP) number: 23 33 or General Permit (GP) number:
tc. Has the NWP or GP number been verified by the Corps? ? Yes ®No
1d. Type(s) of approval sought from the DWQ (check all that apply):
® 401 Water Quality Certification - Regular ? Non-404 Jurisdictional General Permit
? 401 Water Quality Certification - Express ? Riparian Buffer Authorization
le. Is this notification solely for the record
because written approval is not required? For the record only for DWQ 401
Certification:
? Yes ®No For the record only for Corps Permit:

? Yes E] No
1f. Is payment into a mitigation bank or in-lieu fee program proposed for mitigation
of impacts? If so, attach the acceptance letter from mitigation bank or in-lieu
fee program. ? Yes ® No
1g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1h
below. ? Yes ® No
1h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ? Yes ®No
2. Project Information
2a. Name of project: Replacment of Bridge 82 over Jacktown Creek on NC 226
2b. County: McDowell
2c. Nearest municipality / town: Marion
2d. Subdivision name: not applicable
2e. NCDOT only, T.I.P. or state
project no: B-4191
3. Owner Information
3a. Name(s) on Recorded Deed: North Carolina Department of Transportation
3b. Deed Book and Page No. not applicable
3c. Responsible Party (for LLC if
applicable): not applicable
3d. Street address: 1598 Mail Service Center
3e. City, state, zip: Raleigh, NC 27699-1598
3f. Telephone no.: [phone]
3g. Fax no.: [phone]
3h. Email address: [e-mail]
Page 1 of 11
4. Applicant Information (if different from owner)
4a. Applicant is: ? Agent ? Other, specify:
4b. Name: not applicable
4c. Business name
(if applicable):
4d. Street address:
4e. City, state, zip:
V. Telephone no.:
4g. Fax no.:
4h. Email address:
5. Agent/Consultant Information (if applicable)
5a. Name: not applicable
5b. Business name
(if applicable):
5c. Street address:
5d. City, state, zip:
5e. Telephone no.:
5f. Fax no.:
5g. Email address:
Page 2 of 11
B. Project Information and Prior Project History
1. Property Identification
1 a. Property identification no. (tax PIN or parcel ID): not applicable

1 b. Site coordinates in decimal degrees):
(
.65 Longitude: - 81.95
Latitude: 35
(DD.DMDDD) (-DD.DDDDDD)

1 c. Property size: 950 ft L x 225 ft W = 213,750 sq. ft
(213,750) sq. ft. / (43,650) sq. ft =
4.9 acres
2. Surface Waters
2a. Name of nearest body of water (stream, river, etc.) to
proposed project: Jacktown Creek
2b. Water Quality Classification of nearest receiving water: C
2c. River basin: Catawba
3. Project Description
3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this
application:
Bridge No. 82 will be replaced with a 90-foot long reinforced concrete box culvert. Area is heavily developed/disturbed.
3b. List the total estimated acreage of all existing wetlands on the property:
0
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
250 feet
3d. Explain the purpose of the proposed project:
To replace a structurally deficient and/ or functionally obsolete bridge.
3e. Describe the overall project in detail, including the type of equipment to be used:
The project involves replacing a 21-foot bridge with a 90-foot, RCBC at new location just northeast of the existing
location. Standard road building equipment, such as trucks, dozers, and cranes will be used.
4. Jurisdictional Determinations
4a. Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property
/ project (including all prior phases) in the past?
Comments:
? Yes ®No ? Unknown
4b. If the Corps made the jurisdictional determination, what type
of determination was made? ? Preliminary ? Final
4c. If yes, who delineated the jurisdictional areas?
Name (if known): Agency/Consultant Company:
Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
5. Project History
5a. Have permits or certifications been requested or obtained
for this project (including all prior phases) in the past? ? Yes ®No ? Unknown
5b. If yes, explain in detail according to "help file" instructions.
6. Future Project Plans
6a. Is this a phased project? ? Yes ®No
6b. If yes, explain.
Page 3 of 11
C. Proposed Impacts Inventory
1. Impacts Summary
1a. Which sections were completed below for your project (check all that apply):
? Wetlands ® Streams - tributaries ? Buffers
? Open Waters ? Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a. 2b. 2c. 2d. 2e. 2f.
Wetland impact Type of jurisdiction
number - Type of impact Type of wetland Forested (Corps - 404, 10 Area of impact
Permanent (P) or (if known) DWQ - non-404, other) (acres)
Tem ora T
? Yes ? Corps
Site 1 ? P ? T ? No ? DWQ
? Yes ? Corps
Site 2 ? P ? T ? No ? DWQ
? Yes ? Corps
Site 3 ? P ? T . ? No ? DWO
? Yes ? Corps
Site 4 ? P ? T ? No ? DWQ
? Yes ? Corps
Site 5 ? P ? T ? No ? DWQ
? Yes ? Corps
Site 6 ? P ? T ? No ? DWQ
2g. Total wetland impacts X Permanent
X Temporary
2h. Comments:
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a. 3b. 3c. 3d. 3e. 3f. 3g.
Stream impact Type of impact Stream name Perennial Type of Average Impact
number - (PER) or jurisdiction stream length (linear
Permanent (P) or intermittent (Corps - 404, 10 width feet)
Temporary (T) (INT)? DWQ-non-404, (feet)
other)

Site 1 ®P ? T Culvert 2 @ 8'
X 10' RCBC
Creek
Jacktown ® PER
El INT ® Corps
El DWQ 8' 175

Site 2 ? P ®T Temporary
Pipe
Jacktown Creek ® PER
INT ® Corps
? DWQ
8
85
2 @ 66" CSP
Site 3 ? P ? T ? PER
? INT ? Corps
? DWQ
? PER ? Corps
Site 4 ? P ? T ? INT ? DWQ
? PER ? Corps
Site 5 ? P ? T ? INT ? DWQ
? PER ? Corps
Site 6 ? P ? T ? INT ?DWQ
3h. Total stream and tributary impacts 175 Perm
85 Temp
3i. Comments:
Page 4 of 11
4. Open Water Impacts
If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of
the U.S. then individual) list all open water impacts below.
4a. 4b. 4c. 4d. 4e.
Open water Name of
impact number - waterbody Type of impact Waterbody type Area of impact (acres)
Permanent (P) (if applicable)
or Temporary T
01 ?P?T
02 ?P?T
03 ?P?T
04 ?P?T
0. Total open water impacts X Permanent
X Temporary
4g. Comments:
5. Pond or Lake Construction
If and or lake construction proposed, then complete the chart below.
5a. 5b. 5c. 5d. 5e.
Wetland Impacts (acres) Stream Impacts (feet) Upland
Pond ID Proposed use or (acres)
number purpose of pond
Flooded
Filled
Excavated
Flooded
Filled
Excavated
Flooded
P1
P2
5f. Total
5g. Comments:
5h. Is a dam high hazard permit required?
? Yes ? No if yes, permit ID no:
5i. Expected pond surface area (acres)':
5j. Size of pond watershed (acres):
51k. Method of construction:
Page 5 of 1 l
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer
impacts below. If an impacts require mitigation, then ou MUST fill out Section D of this form.
6a.
? Neuse ?Tar-Pamlico ? Other:
Project is in which protected basin? ? Catawba ? Randleman
6b. 6c. 6d. 6e. 6f. 69.
Buffer impact
number - Reason for impact Buffer Zone 1 impact Zone 2 impact
Permanent (P) or Stream name mitigation (square feet) (square feet)
Temporary T required?
?Yes
131 ?P?T ? No
?Yes
B2 ?P?T ? No
B3 ? P ? T ? Yes
? No
6h. Total buffer impacts
6i. Comments:
Page 6 of 11
D. Impact Justification and Mitigation
1. Avoidance and Minimization
la. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
The current bridge will be replaced at new location just northeast of the existing location. During construction traffic will
follow an on-site detour. There will be no direct discharge into Jacktown Creek. Low flow channel in RCBC and
preformed scoure hole to reduce road runoff.
1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
NCDOT Best Management Practices will be implemented during all phases of construction and demolition.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for
impacts to Waters of the U.S. or Waters of the State? ® Yes ? No
2b. If yes, mitigation is required by (check all that apply): ® DWQ ® Corps

2c.
If yes, which mitigation option will be used for this

project? ? Mitigation bank

El Payment to in-lieu fee program

® Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a. Name of Mitigation Bank: not applicable
3b . Credits Purchased (attach receipt and letter) Type Quantity
3c. Comments:
4. Complete if Making a Payment to In-lieu Fee Program
4a . Approval letter from in-lieu fee program is attached. ? Yes
4b . Stream mitigation requested: linear feet
4c . If using stream mitigation, stream temperature: ? warm ? cool ?cold
4d . Buffer mitigation requested (DWQ only): square feet
4e . Riparian wetland mitigation requested: acres
4f. Non-riparian wetland mitigation requested: acres
4g . Coastal (tidal) wetland mitigation requested: acres
4h . Comments:
5. Complete if Using a Permittee Responsible Mitigation Plan
5a . If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
NCDOT will restore approximately 175 feet of jurisdictional stream as onsite-mitigation at 1:1 ratio by restoring the
downstream reach of Jacktown Cree. See attached Conceptual Stream Restoration Plan.
Page 7 of 11
6. Buffer Mitigation (State Regulated Riparian Buffer Rules) - required by DWQ
6a. Will the project result in an impact within a protected riparian buffer that requires
buffer mitigation? ? Yes ? No
61b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the
amount of mitigation required.

Zone 6c.
Reason for impact 6d.
Total impact
(square feet)
Multiplier 6e.
Required mitigation
(square feet)
Zone 1 3 (2 for Catawba)
Zone 2 1.5
6f. Total buffer mitigation required:
6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank,
permittee responsible riparian buffer restoration, payment into an approved in-lieu fee fund).
6h. Comments:
Page 8of11
E. Stormwater Management and Diffuse Flow Plan (required by DWQ)
1. Diffuse Flow Plan
1a. Does the project include or is it adjacent to protected riparian buffers identified ? Yes ® No
within one of the NC Riparian Buffer Protection Rules?
1b. If yes, then is a diffuse flow plan included? If no, explain why.
? Yes ? No
Comments:
2. Stormwater Management Plan
2a. What is the overall percent imperviousness of this project? See attached %
2b. Does this project require a Stormwater Management Plan? ® Yes ? No
2c. If this project DOES NOT require a Stormwater Management Plan, explain why:
2d. If this project DOES require a Stormwater Management Plan, then provide a brief, na rrative description of the plan:
See attached
? Certified Local Government.
2e. Who will be responsible for the review of the Stormwater Management Plan? ? DWQ Stormwater Program
? DWQ 401 Unit
3. Certified Local Government Stormwater Review
3a. In which local government's jurisdiction is this project? not applicable
? Phase II
3b. Which of the following locally-implemented stormwater management programs ? NSW
? USMP
apply (check all that apply): ? Water Supply Watershed
? Other:
3c. Has the approved Stormwater Management Plan with proof of approval been ? Yes ? No
attached?
4. DWQ Stormwater Program Review
? Coastal counties
? HOW
4a. Which of the following state-implemented stormwater management programs apply ? ORW
(check all that apply):
? Session Law 2006-246
? Other:
4b. Has the approved Stormwater Management Plan with proof of approval been
attached? ? Yes ? No
5. DWQ 401 Unit Stormwater Review
5a. Does the Stormwater Management Plan meet the appropriate requirements? ? Yes ? No
5b. Have all of the 401 Unit submittal requirements been met? ? Yes ? No
Page 9 of 11
F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
la. Does the project involve an expenditure of public (federal/state/local) funds or the ® Yes ? No
use of public (federal/state) land?
lb. If you answered "yes" to the above, does the project require preparation of an
environmental document pursuant to the requirements of the National or State ® Yes ? No
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
1c. If you answered "yes" to the above, has the document review been finalized by the
State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval
® Yes
? No
letter.)
Comments:
2. Violations (DWQ Requirement)
2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated
Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards, ? Yes ®No
or Riparian Buffer Rules (15A NCAC 2B.0200)?
21b . Is this an after-the-fact permit application? ? Yes ® No
2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
3. Cumulative Impacts (DWQ Requirement)
3a . Will this project (based on past and reasonably anticipated future impacts) result in ? Yes ® No
additional development, which could impact nearby downstream water quality?
3b . If you answered 'yes' to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the
most recent DWQ policy. If you answered "no," provide a short narrative description.
4. Sewage Disposal (DWQ Requirement)
4a . 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.
not applicable
Page 10 of I 1
5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or ? Yes ® No
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act ? Yes ® No
impacts?
? Raleigh
5c. If yes, indicate the USFWS Field Office you have contacted.
? Asheville
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
http://www.fws.gov/nc-es/es/countyfr.htmi ; Field investigations within the project study area were conducted by NCDOT
staff resulting in biological conclusions of No Effect (No Habitat Present) for all T&E species listed for McDowell County.
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat? ? Yes ® No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
NMFS County Index
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
7a . Will this project occur in or near an area that the state, federal or tribal
governments have designated as having historic or cultural preservation Yes ®No
status (e.g., National Historic Trust designation or properties significant in
North Carolina history and archaeology)?
7b . What data sources did you use to determine whether your site would impact historic or archeological resources?
NEPA Documentation
8. Flood Zone Designation (Corps Requirement)
8a . Will this project occur in a FEMA-designated 100-year floodplain? ? Yes ® No
8b . If yes, explain how project meets FEMA requirements: Hydraulics coordination with FEMA
8c . What source(s) did you use to make the floodplain determination? FEMA Maps
Dr. Gregory J. Thorpe, Ph D
Applicant/Agent's Printed Name Applicant/Agent's Signature Date
(Agent's signature is valid only if an authorization letter from the applicant
is provided.)
Page 11 of 11
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NORTH CAROLINA
DEPARTMENT OF TRANSPORTA770M
.' PROJECT DEVELOPMENT &
-?' EN ONMENTAL ANALYSIS BRANCH
McDOWEU COUNTY TIP NO. B-4191
BRIDGE N0.81 ON NC 226
OVER JACKTOWN CREEK
VICINITY MAP
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Trustees of the McDowell County
3 Technical Institute
Dawn J. Smith & Leo M. Smith:
AND Phyllis J. Lynch & Linard P.
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54 College Dr,. Marion NC 278752
Route 3, Box 68A, Ameliia, NC 23002
NC DEPARTMENT OF TRANSPORTATION
DIVISION OF HIGHWAYS
McDowell COUNTY
WBS - 33538.1.1 (B-4191)
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10/27/2008
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Jacktown Creek
Conceptual Stream Restoration Plan
Replacement of Bridge No. 82 on NC 226
McDowell County
TIP B-4191
Federal Aid Project No. BRSTP-226(10)
WBS No. 33538.1.1
March 2009
The North Carolina Department of Transportation (NCDOT) will perform on-site
mitigation for stream impacts associated with the replacement of Bridge Number 82 over
Jacktown Creek on NC 226 in McDowell County. The project will replace a bridge with
a reinforced concrete box culvert and permanently impact 175 linear feet and temporarily
impact 85 linear feet of stream channel. NCDOT will restore approximately 450 linear
feet of jurisdictional stream to use as onsite mitigation at 1:1 ratio for the impacts once
construction has been completed. The mitigation will occur immediately downstream of
Transportation Improvement Program (TIP) B-4191. Based on agency comments, any
remaining mitigation credit will be considered onsite assets and will be available as
mitigation for future projects in the service area.
EXISTING CONDITIONS
The project is located in McDowell County, approximately 0.2 miles south of I-40 on NC
226. The drainage area of the reach is 1.27 sq. miles and is comprised mainly of forested
land with interspersed light residential and commercial. The reach flows through a
fallow field on McDowell Technical Community College (MTCC). Roughly 0.25 mile
downstream of the project, Jacktown Creek flows into Coperning Creek which is a 303d
listed stream.
A cross section was measured at a representative riffle section for Rosgen classification
determination The width/depth ratio was found to be 12.6 (moderate to high) with an
entrenchment ratio of 1.28 (entrenched) which would classify the stream as an F-type.
The stream has high steep banks with little mature vegetation which leaves them
susceptible to erosion. The stream slope for the entire reach is 0.007 ft/ft.
PROPOSED CONDITIONS
The creek currently flows under a bridge on US 226, but will be replaced with an 8'x 10'
double box culvert. A rock sill will placed at one of the openings to restrict use to high
flows only.
The proposed stream mitigation will consist of restoring 450 linear feet of jurisdictional
stream by improving channel dimensions, profile and to some extent, pattern. The
proposed channel will be a C-type channel with a width/depth ratio of 12 or greater. The
proposed bank full depth of approximately 1.2 feet is appropriate according to the
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mountain regional curve data A floodplain will be excavated to increase the
entrenchment ratio above 22 and a planted buffer will be established to allow storage of
floodwaters and filtering nmoff. Pools will be excavated to provide more variability and
habitat in the profile. The stream slope will remain at approximately 0.007 ft/ft. The
stream pattern will be improved in meanders with low radius of curvature values to
reduce the near bank stress and erosion susceptibility. The stream banks will be
stabilized using coir fiber matting and planted in accordance to the reforestation plan.
Structures, such as rock cross vanes will likely be utilized as needed to maintain the
channel grade and establish pool habitats. NCDOT will be working with the Muddy
Creek Restoration Partnership and NCSU Water Quality Group to incorporate stormwater
wetlands into the site which are intended to capture and treat stormwater from the MTCC
campus.
The Natural Environment Unit shall be contacted to provide construction assistance, if
necessary, to ensure that the stream mitigation area is constructed appropriately.
The Natural Environment Unit is currently coordinating with MTCC to secure an
easement to protect the mitigation site into perpetuity. During a meeting on 12/16/08,
Brian Wilson, President of MTCC, gave NCDOT an initial approval for an easement and
will be presenting a copy of an easement document to the MTCC Board in February
2009. The MTCC Grounds Committee will need to approve the easement as well.
MONITORING
NCDOT proposes to perform a Level 1 monitoring of the stream following completion of
restoration. Monitoring shall be performed twice annually (summer and winter) for each
of a five year period, provided at least two bankfull events have occured during this
period. Monitoring activities shall consist of reference photos, plant survival
determinations and visual inspection of stream stability.
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STORMWATER MANAGEMENT PLAN
Project: 33538.1.1
TIP No.: B-4191
County: McDowell
03/27/2009
Hydraulics Project Manager: Roger Weadon, P.E. (MA Engineering),
Marshal Clawson, P.E. (NCDOT Hydraulics Unit)
ROADWAY DESCRIPTION
The project B-4191 consists of constructing a 2 @ 8x10 Reinforced Concrete Box
Culvert, which is 90' long to replace the existing bridge #82 in McDowell County on
NC-226 over Jacktown Creek. The total project length is 0.147 miles. The project creates
impacts to Jacktown Creek, which is located in the Catawba River Basin. The project
drainage systems consist of curb and gutter streets with an enclosed storm system as well
as roadside ditches and cross pipes culverts.
Jurisdiction Stream Jacktown Creek
ENVIRONMENTAL DESCRIPTION
The project is located within the Catawba River Basin in McDowell County. The stream
is classified as type C. Jacktown Creek will be impacted by the proposed project,
however impacts have been minimized by burying the primary 8'x10' RCBC barrel by 1
foot and raising the second barrel closer to the floodplain by installing a rock inlet sill.
BEST MANAGEMENT PRACTICES AND MAJOR STRUCTURES
The primary goal of Best Management Practices (BMPs) is to prevent degradation of the
states surface waters by the location, construction and operation of the highway system
The BMPs are activities, practices and procedures taken to prevent or reduce stormwater
pollution- The BMP measures used on this project to reduce stormwater impacts are:
• Bury primary flow barrel of the RCBC by 1'
• Set second barrel of RCBC closer to the floodplain with a rock inlet sill.
• Use preformed scour holes at storm drain outlets in flat areas.
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