20100745 Ver 1_Application_20100909

STATE OF NORTH CAROLINA
X0,0 10
DEPARTMENT OF TRANSPORTATION ;AO?rg,
BEVERLY EAVES PERDUE EUGENE A. (_6yJT1, JR.
GOVERNOR - SECRETARY
September 9, 2010
U. S. Army Corps of Engineers
151 Patton Avenue, Room 208
Asheville, NC 28801-5006
100'/ A `y5
ATTN: Ms. Loretta Beckwith
NCDOT Coordinator
Subject: Application for Section 404 Nationwide Permits 13, 23, & 33 and Section 401
Water Quality Certifications for the proposed replacement of Bridge No. 419 over
Pigeon River on US 13/23/74 in Haywood County, Federal Aid Project No. BRSTP-
0019(3); Division 14; TIP No. B-3656
$240.00 debit WBS 33202.1.2
Dear Ms. Beckwith:
The North Carolina Department of Transportation (NCDOT) proposes to replace Bridge No. 419
over the Pigeon River on US 13/23/74 in downtown Canton. There will be 85 linear feet of
permanent impact to the Pigeon River due to bank stabilization and shoring up under the bridge.
There will also be 0.42 acres of temporary stream impacts due to the use of causeways throughout
the construction sequence. Please see the attached permit drawings and sequence of construction
activities narrative for a more detailed explanation. Lastly, the newly constructed bridge will
contain two piers in the water, one fewer than the existing structure, and will yield a total permanent
impact area of 126 square feet for the construction of bents in the water.
Please see enclosed copies of the Pre-Construction Notification (PCN), Rapanos jurisdictional
determination form, stormwater management plan, addendum to stormwater management plan
B-3656 Narrative for Sequence of Construction, permit drawings, and roadway design plans for the
above mentioned project. The Natural Resources Technical Report (NRTR) was completed in July
2009 and a Programmatic Categorical Exclusion (PCE) was completed in March 2009. Additional
copies are available upon request. A Biological Opinion (BO) is in the final stages of completion by
the United States Fish and Wildlife Services (USFWS). When NCDOT receives the final BO from
the USFWS, the document will be forwarded under separate cover.
Comments from the North Carolina Wildlife Resources Commission (NCWRC) will be required
prior to authorization by the Corps of Engineers. By copy of this letter and attachments, NCDOT
hereby requests NCWRC review. NCDOT requests that NCWRC forward their comments to the
Corps of Engineers and the NCDOT within 30 calendar days of receipt of this application.
MAILING ADDRESS: TELEPHONE: [phone] LOCATION:
NC DEPARTMENT OF TRANSPORTATION FAX: [phone] ATLANTIC AVENUE
PROJECT DEVELOPMENT AND ENVIRONMENTAL ANALYSIS SUITE 116
1598 MAIL SERVICE CENTER WEBSITE: WWW.NCDOTORG RALEIGH NC 27604
RALEIGH NC 27699-1598
This project calls for a letting date of December 21, 2010 and a review date of November 2, 2010.
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 Kris Dramby at [phone].
Sincerely,
WGregory J. Thorpe, Ph:D.
Environmental Management Director, PDEA
W/attachment
Mr. Brian Wrenn, NCDWQ (S Copies)
Ms. Marella Buncick, USFWS
Ms. Marla Chambers, NCWRC
Dr. Charles Nicholson, TVA
W/o attachment (see website for attachments)
Dr. David Chang, P.E., Hydraulics
Mr. Dewayne Sykes, P.E., Utilities Unit
Mr. Victor Barbour, P.E., Project Services Unit
Mr. Greg Perfetti, P.E., Structure Design
Mr. Mark Staley, Roadside Environmental
Mr. J. B. Setzer, P.E. (Div. 14), Division Engineer
Mr. Mark Davis (Div. 14), 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
Ms. Natalie Lockhart, Project Development Engineer
sI
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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 El Section 10 Permit
1 b. Specify Nationwide Permit (NWP) number: 13, 23 & 33 or General Permit (GP) number:
1c. Has the N WP 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 ? Nan-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 ® 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 1 h
below. ? Yes ® No
1h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ? Yes ® No
::. Project Information
2a. Name of project: Replacment of Bridge 419 Over Pigeon River on US 19/23174.
2b. County: Haywood
2c. Nearest municipality / town: Canton
2d. Subdivision name: not applicable
2e. NCDOT only, T.I.P. or state
project no: B-3656
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 i f

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]
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:
4f. Telephone no.:
4g. Fax no.:
41h. 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:
B. Project Information and Prior Project History
1. Property Identification
1a. Property identification no. (tax PIN or parcel ID): not applicable
1b. Site coordinates (in decimal degrees): Latitude: 35.53175 Longitude: - 82.84224
(DD.DDDDDD) (-DD.DDDDDD)
1c. Property size: 3.5 acres within the Project Study Area
2. Surface Waters
2a. Name of nearest body of water (stream, river, etc.) to
proposed project: Pigeon River
2b. Water Quality Classification of nearest receiving water: C
2c. River basin: French Broad River
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:
TIP NO. B-3656's project study area is located in downtown Canton in an urban section of Haywood.County primarily
surrounded by commercial, industrial, and forested land. The topography in the project study area is comprised of a
nearly level floodplain of Pigeon River. Elevation within the project study area measures approximately 2600 feet above
mean sea level.
3b. List the total estimated acreage of all existing wetlands on the property:
NA
;S c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
140
3d. Explain the purpose of the proposed project:
To replace a structurally deficient bridge.
4
.e. Describe the overall project in detail, including the type of equipment to be used:
Bridge No. 419 is 189 feet long. The replacement structure will be a bridge approximately 220 feet long providing a minimum
53.5-foot clear deck width. The bridge will include three 11-foot travel lanes. The proposed bridge will accommodate bicycle
traffic on the north side on the structure. On each side of the bridge, 5.5-foot sidewalks will be provided. The bridge length is based
on preliminary design information and is set by hydraulic requirements. The roadway grade of the new structure will be
approximately the same as the existing structure.
The approach roadway will extend approximately 490 feet from the west end of the new bridge and 340 feet from the east end of
the new bridge to accommodate parallel parking. The approaches will be widened to include three I I-foot lanes that will include 2-
foot extra widening for the outside lanes, 2-6 inch concrete curb and gutter with 5.5-foot sidewalks and a 10-foot berm will be
provided on each side of the roadway. The roadway will be designed as a Major Collector using 2004 AASHTO policy with a 30
mile per hour design speed.
Traffic will be detoured off-site during construction.
The existing bridge on US 19 over the Pigeon River in Canton consists of concrete deck girders atop masonry abutments and
reinforced concrete web bents with reinforced concrete footings founded on timber piles.
Removing the existing bridge and constructing the proposed bridge will require temporary stone workpads in the Pigeon River.
Flan sheets showing each phase and stage are included in the permit drawings. The removal and construction is proposed to begin
from the east side of the river and is shown as Phase 1, which has 3 stages. The work from the west is shown as Phase 11, which
also has 3 stages. Removal of the existing superstructure does not propose significant logistical concerns and, therefore, is not
addressed in any of the following discussion. The removal may take place before or during any of the early stages. Twice during
the removal and construction more than 50% of the Pigeon River will be blocked by the workpads. The slopes on both the east and
west side of the river in the area of construction will be stabilized using Class 11 Riprap with filter fabric.
Phase I Stage I workpad will block 56% of the Pigeon River. This Phase and Stage are required for the removal of existing Bent 2
which is in the center of the river. The critical need is for removing the footing and pulling or cutting the piles. The footing is
estimated to be 6 feet thick and must be broken apart before removal. The piles may be removed or cut off at the river bed. To
keep debris from the river, the Bent 2 footing and piles need to be surrounded by the workpad. Existing Bent 3 may be removed at
this stage or the next. When Bent 2 is removed, the workpad must be reduced to stage 2. Phase I stage I workpad will be in place
no more than 14 calendar days.
Phase I stage 2 will block 34% of the river. This workpad is required for constructing the drilled pier foundations of proposed Bent
2. This workpad allows access to the drilled pier locations, but more importantly protects the river from drilling muds and spoil
coming from the drilled hole. When the bent construction is completed, the workpad will be reduced to Stage 3 behind the mudflat.
Phase I Stage 3 will block 21 % of the river. This workpad stage is requested for cranes to set box beams in Spans B and C. The
setting of Span B box beams is described below. Phase I Stage 3 remains in place until all box beams are set in Spans B and C.
Phase II Stage I workpad will block 27% of the river, however it is in place along with Phase I Stage 3 workpad. These two
workpads will block 48% of the river. This Phase and Stage are required for the removal of existing Bent 1. The requirements here
are described above for the removal of Bent 2. After the bent is removed, the workpad will be increased for Phase II Stage 2.
Phase II Stage 2 will block 34% of the river, being in concurrently with Phase I Stage 3 will cause 55% of the river to be blocked.
This workpad is required for the construction of the drilled pier foundations of proposed Bent I. The above described need for
constructing Bent 2 is the same for Bent 1. This stage will be in place approximately 60 calendar days.
Phase II Stage 3 reduces the workpad to the limits of Stage I for the setting of box beams and blocks 48% of the river. For Span B,
trucks will deliver box beams to the west end of the bridge. A crane located on the workpad will pick up box beams from the trucks
and set them in Span A. The crane will reposition to pick up only the west end of the box beam and the crane in the Phase I Stage 3
position will reach over Bent 2 to Bent 1, picking up the east end of the box beam, and together the two cranes will lift then set the
box beams in Span B. The workpad remains in place until all box beams are set in Spans A and B. After the box beams are set, the
temporary workpads will be removed.
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? ? Yes ® No ? Unknown
Comments: Please consider this application and Rapanos
form attached, the request for final JD.
4b. If the Corps made the jurisdictional determination, what type
? Preliminary ? Final
of determination was made?
4c. If yes, who delineated the jurisdictional areas? Agency/Consultant Company:
Name (if known): Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
!i. Project History
5a. Have permits or certifications been requested or obtained for ? Yes ® No ? Unknown
this project (including all prior phases) in the past?
51b. If yes, explain in detail according to "help file" instructions.
ti. Future Project Plans
Fa. Is this a phased project? ? Yes ® No
6b. If yes, explain.
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)
Temporary T
Site 1 ? P ? T ? Yes ? Corps
? No ? DWQ
Site 2 ? P ? T ? Yes ? Corps
? No ? DWQ
Site 3 ? P ? T ? Yes ? Corps
? No ? DWQ
Site 4 ? P ? T ? Yes ? Corps
? No ? DWQ
Site 5 ? P ? T ? Yes ? Corps
? No ? DWQ
Site 6 ? P ? T ? Yes ? Corps
? 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. 31b. 3c. 3d. 3e. 3f. 3g.
Stream impact Type of impact Stream name Perennial Type of Average Impact length
number - (PER) or jurisdiction stream (linear feet)
Permanent (P) or intermittent (Corps - 404, 10 width
Temporary (T) (INT)? DWQ - non-404, (feet)
other)

Site 1 ® P ? T Riprap Pads
and Slope
Pigeon River ® PER ® Corps
165
85
Protection ? INT ? DWQ
Temporary

Site 2 ? P ® T Causeway: All
Construction
Pigeon River ® PER ® Corps
165
170
Scenarios ? INT ? DWQ
Combined
Site 3 ? P ? T ? PER ? Corps
? INT ? DWQ
85 LF Perm
3h. Total stream and tributary impacts (.02 Acre)
170 LF Temp
(.42 Acre)
3i. Comments: 170 linear feet of temporary surface water impacts includes all construction phases combined. See project
description for details.
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) or (if applicable)
Temporary T
01 ?P?T
02 ?P?T
03 ?P?T
04 ?P?T
4f. Total open water impacts X Permanent
X Temporary
4g. Comments:
6. Pond or Lake Construction
If and or lake construction proposed, then complete the chart below.
f a. 5b. 5c. 5d. 5e.
Wetland Impacts (acres) Stream Impacts (feet) Upland
Pond ID Proposed use or (acres)
number purpose of pond Excavat
Flooded Filled ed 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):
5k. Method of construction:
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If ye s, then individually list all buffer
impacts below. If an impacts require miti gation, then you MUST fill out Section D of this form.
6a.
? Neuse
?Tor-Pamlico ? Other:
Project is in which protected basin? ? Catawba ? Randleman
61b. 6c. 6d. 6e. 6f. 6g.
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?
61 ?P?T ?Yes
? No
B2 ?P?T ?Yes
? No
B3 ?P?T ?Yes
? No
61h. Total buffer impacts
6i. Comments:
D. Impact Justification and Mitigation
1. Avoidance and Minimization
'la. 'Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
Best management practices will be followed as outlined in "NCDOT's Best Management Practices for Construction and
Maintenance Activities", Design Standards for Sensitive Watersheds will be used for protection of downstream waters
and known A. Elktoe populations, new bridge has one fewer pier (bent) in the river thus increasing habitat availability
within the water column and along the streambed, and traffic will be detoured offiste during construction to minimize
temporary impacts to the river and reduce the overall time of construction disturbance.
lb. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
3:1 fill slopes will be used where practicable, no deck drains discharging directly into river, existing road fill and vertical
concrete abutments will be removed, new bridge will have increased waterway opening that will improve bridge
conveyance and reduce flow velocity and erosion potential, rip-rap slope protection on banks beneath bridge will stabilize
the embankment and reduce potential for erosion, and outfall pipe for storm drain system northeast of bridge will be
constructed at shallow slope consistent with that of existing system to minimize flow velocity at outlet. New rip-rap pad at
outlet will further reduce velocity.
:2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
? Yes ®No
2a. Does the project require Compensatory Mitigation for If no, explain: Total impacts are below thresholds that would
impacts to Waters of the U.S. or Waters of the State? require mitigation. Only permanent impacts are due to bank
stabilization measures and construction of bents in water.
Overall, minimal if an net loss of waters.
2b. If yes, mitigation is required by (check all that apply): ? DWQ ? Corps
? Mitigation bank
2c. If yes, which mitigat ion option will be used for this ? Payment to in-lieu fee program
project?
? Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a. Name of Mitigation Bank: not applicable
31b. 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
4th. 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
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5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
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
6b. 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:
E. Stormwater Management and Diffuse Flow Plan (required by DWQ)
1. Diffuse Flow Plan
1 a. Does the project include or is it adjacent to protected riparian buffers identified ? Yes ® No
within one of the NC Riparian Buffer Protection Rules?
1 b. If yes, then is a diffuse flow plan included? If no, explain why.
? Yes ? No
Comments: if yes, see attached permit drawings.
.2. Stormwater Management Plan
2a. What is the overall percent imperviousness of this project? N/A
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 permit drawings.
? 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
4a. Which of the following state-implemented stormwater management programs apply ? HQW
(check all that apply): ? ORW
? Session Law 2006-246
? Other:
41b. Has the approved Stormwater Management Plan with proof of approval been
attached? ? Yes ? No
5. DWQ 401 Unit Stormwater Review
52. Does the Stormwater Management Plan meet the appropriate requirements? ® Yes ? No
51b. Have all of the 401 Unit submittal requirements been met? ® Yes ? No
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F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
1a. Does the project involve an expenditure of public (federal/state/local) funds or the ® Yes ? No
use of public (federal/state) land?
11b. 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
letter.) ® Yes ? No
Comments:
2. Violations (DWQ Requirement)
:2a. Is the site in violation of'DWQ Wetland Rules (15A NCAC 2H .0500), Isolated
Wetiand 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
additional development, which could impact nearby downstream water quality? ® No
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.
Due to the minimal transportation impact resulting from this bridge replacement, this project will neither influence nearby
land uses nor stimulate growth. Therefore, a detailed indirect or cumulative effects study will not be necessary.
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
13
5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or Z Yes ? No
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act Z Yes ? No
impacts?
El Raleigh
Sc. If yes, ind icate the USFWS Field Office you have contacted.
Z Asheville
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
NHP GIS Element Occurences, USFWS website, and NCDOT-field surveys.Based on NCDOT mussel survey results
yielding Appalachian elktoe found within the project study area; a Biological Assessment was completed and submitted to
the Asheville USFWS office on May 25, 2010 and formal Section 7 Consultation was activated on May 27, 2010. The
biological opinion from USFWS is included in this permit application.
ti. Essential Fish Habitat (Corps Requirement)
Fa. Will this project occur in or near an area designated as essential fish habitat? ? Yes N No
Gb. 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 n No
status (e.g., National Historic Trust designation or properties significant in
North Carolina history and archaeology)?
71b. 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)
8.3. Will this project occur in a FEMA-designated 100-year floodplain? Z Yes ? No
86. If yes, explain how project meets FEMA requirements: NCDOT Hydraulics coordination with FEMA
8c. What source(s) did you use to make the floodplain determination? FEMA Maps

? 7' f V
Dr. Gregory J. Thorpe. Ph D t
' D
t
Applicant/Agent
s Printed Name A IicanU gent's Signature a
e
. (Agent's signature is valid only ff an authorization letter from the applicant
is provided.)
14
APPROVED JURISDICTIONAL DETERMINATION FORM
U.S. Army Corps of Engineers
This form should be completed by following the instructions provided in Section IV of the 1D Form Instructional Guidebook.
SECTION I: BACKGROUND INFORMATION -
A. REPORT COMPLETION DATE FOR APPROVED JURISDICTIONAL DETERMINATION (JD):
B. DISTRICT OFFICE, FILE NAME, AND NUMBER:
C. PROJECT LOCATION AND BACKGROUND INFORMATION:
State: NC County/parish borough: Haywood City: Canton
Center coordinates of site Hat/long in degree decimal format): Lat. 35.53167° N, Long. 82.84228° W.
Universal Transverse Mercator:
Name of nearest waterbody: Pigeon River
Name of nearest Traditional Navigable Water (TNW) into which the aquatic resource flows: Pigeon River
Name of watershed or Hydrologic Unit Code (HUC): 06010106
® Check if map/diagram of review area and/or potential jurisdictional areas is/are available upon request.
E] Check if other sites (e.g., offsite mitigation sites, disposal sites, etc...) are associated with this action and are recorded on a
different JD forth.
D. REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL THAT APPLY):
Q Office (Desk) Determination. Date:
a Field Determination. Date(s):
SECTION 11: SUMMARY OF FINDINGS
A. BHA SECTION 10 DETERMINATION OF JURISDICTION.
There Fck,L "navigable waters of the US." within Rivers and Harbors Act (RHA) jurisdiction (as defined by 33 CFR part 329) in the
review area. [Required]
Q Waters subject to the ebb and flow of the tide.
Q Waters are presently used, or have been used in the past, or may be susceptible for use to transport interstate or foreign commerce.
Explain:
B. CWA SECTION 404 DETERMINATION OF JURISDICTION.
There Pjck?Iist "waters ojthe US." within Clean Water Act (CWA) jurisdiction (as defined by 33 CFR part 328) in the review area. [Required]
1. Waters of the U.S.
a. Indicate presence of waters of U.S. in review area (check all that apply): t
® TNWs, including territorial seas
t.= Wetlands adjacent to TNWs
Q Relatively permanent waters (RPWs) that flow directly or indirectly into TNWs
Q Non-RPWs that flow directly or indirectly into TNWs
Q Wetlands directly abutting RPWs that flow directly or indirectly into TNWs
Q Wetlands adjacent to but not directly abutting RPWs that flow directly or indirectly into TNWs
?r Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs
Impoundments ofjurisdictional waters
Isolated (interstate or intrastate) waters, including isolated wetlands
b. Identify (estimate) size of waters of the U.S.in the review area:
Non-wetland waters: 1801inear feet: 165width (ft) and/or acres.
Wetlands: acres.
c. Limits (boundaries) of jurisdiction based on: 1987,fDeltneabon;Manuiil
Elevation of established OHWM (if known):
2. Non-regulated waters/wetlands (check if applicable):3
Potentially jurisdictional waters and/or wetlands were assessed within the review area and determined to be not jurisdictional.
Explain:
t Boxes checked below shall be supported by completing the appropriate sections in Section III below.
2 For purposes of this form, an RPW is defined as a tributary that is not a TNW and that typically flows year-round or has continuous flow at least "seasonally"
te.g., typically 3 months).
' Supporting documentation is presented in Section III.F.
SECTION Ill: CWA ANALYSIS
A. TNWs AND WETLANDS ADJACENT TO TNWs
The agencies will assert jurisdiction over TNWs and wetlands adjacent to TNWs. If the aquatic resource is a TNW, complete
Section III.A.1 and Section II1.D.1. only; if the aquatic resource is a wetland adjacent to a TNW, complete Sections III.A.1 and 2
and Section III.D.1.; otherwise, see Section III.B below.
1. TNW
Identify TNW: Pigeon River.
Summarize rationale supporting determination: Large River Complex.
2. Wetland adjacent to TNW
Summarize rationale supporting conclusion that wetland is "adjacent":
B. CHARACTERISTICS OF TRIBUTARY (THAT IS NOT A TN") AND ITS ADJACENT WETLANDS (IF ANY):
This section summarizes information regarding characteristics of the tributary and its adjacent wetlands, if any, and it helps
determine whether or not the standards for jurisdiction established under Rspanos have been met.
The agencies will assert jurisdiction over non-navigable tributaries of TNWs where the tributaries are "relatively permanent
waters" (RPWs), i.e. tributaries that typically flow year-round or have continuous flow at least seasonally (e.g., typically 3
months). A wetland that directly abuts an RPW is also jurisdictional. If the aquatic resource is not a TNW, but has year-round
(perennial) flow, skip to Section III.D.2. If the aquatic resource is a wetland directly abutting a tributary with perennial flow,
skip to Section III.D.4.
A wetland that is adjacent to but that does not directly abut an RPW requires a significant nexus evaluation. Corps districts and
EPA regions will include in the record any available information that documents the existence of a significant nexus between a
relatively permanent tributary that is not perennial (and its adjacent wetlands if any) and a traditional navigable water, even
though a significant nexus finding is not required as a matter of law.
If the waterbody° is not an RPW, or a wetland directly abutting an RPW, a JD will require additional data to determine if the
waterbody has a significant nexus with a TNW. If the tributary has adjacent wetlands, the significant nexus evaluation must
consider the tributary in combination with all of its adjacent wetlands. This significant nexus evaluation that combines, for
analytical purposes, the tributary and all of its adjacent wetlands is used whether the review area identified in the JD request is
the tributary, or its adjacent wetlands, or both. If the JD covers a tributary with adjacent wetlands, complete Section III.B.1 for
the tributary, Section HLB.2 for any onsite wetlands, and Section III.B.3 for all wetlands adjacent to that tributary, both onsite
and offsite. The determination whether a significant nexus exists is determined in Section IILC below.
1. Characteristics of non-TNWs that flow directly or indirectly into TNW
(i) General Area Conditions:
Watershed size: Pick4Lisi
Drainage area: (I?it:ltList
Average annual rainfall: inches
Average annual snowfall: inches
(ii) Physical Characteristics:
(a) Relationship with TNW:
? Tributary flows directly into TNW.
°-r--
'? Tributary flows through P.ick•List tributaries before entering TNW.
Project waters are PkklL'ist river miles from TNW.
Project waters are Eic9hist river miles from RPW.
V, ,,r,
Project waters are Pick?list aerial (straight) miles from TNW.
Project waters are PiekdList aerial (straight) miles from RPW.
Project waters cross or serve as state boundaries. Explain
Identify flow route to TNW':
Tributary stream order, if known:
' Note that the Instructional Guidebook contains additional information regarding swales, ditches, washes, and erosional features generally and in the and
'Nest.
' Flaw mute can be described by identifying, e.g., tributary a, which flows through the review area, to flow into tributary b, which then flows into TNW.
(b) General Tributary Characteristics (check all that aoolv):
Tributary is: ? Natural
? Artificial (man-made). Explain:
? Manipulated (man-altered). Explain:
Tributary properties with respect to top of bank (estimate):
Average width: feet
Average depth: feet
Average side slopes: PickiEist.
Primary tributary substrate composition (check all that apply):
? Silts ? Sands ? Concrete
? Cobbles ? Gravel ? Muck
? Bedrock ? Vegetation. Type/%cover:
? Other. Explain:
Tributary condition/stability, [e.g., highly eroding, sloughing banks]. Explain:
Presence of run/rifflc/pool complexes. Explain:
Tributary geometry: Pick List
Tributary gradient (approximate average slope): %
(c) Flow:
Tributary provides for: Pick-Llst
Estimate average number of flow events in review area/year: Piekllist
Describe flow regime:
Other information on duration and volume:
Surface flow is:PicyZ'ist. Characteristics:
Subsurface flow: Pick-Eist. Explain findings:
? Dye (or other) test performed:
Tributary has (check all that apply):
? Bed and banks
? OHWM6 (check all indicators that apply):
? clear, natural line impressed on the bank ?
? changes in the character of soil ?
? shelving ?
? vegetation matted down, bent, or absent ?
? leaf litter disturbed or washed away ?
? sediment deposition ?
? water staining ?
? other (list):
? Discontinuous OHWM.' Explain:
If factors other than the OHWM were used to determ
0 High Tide Line indicated by:
? oil or scum line along shore objects
? fine shell or debris deposits (foreshore)
? physical markings/characteristics
? tidal gauges
? other (list):
the presence of litter and debris
destruction of terrestrial vegetation
the presence of wrack line
sediment sorting
scour
multiple observed or predicted flow events
abrupt change in plant community
ne lateral extent of CWAjurisdiction (check all that apply)
Mean High Water Mark indicated by:
? survey to available datum;
? physical markings;
? vegetation lines/changes in vegetation types.
(iii) Chemical Characteristics:
Characterize tributary (e.g., water color is clear, discolored, oily film; water quality; general watershed characteristics, etc.).
Explain:
Identify specific pollutants, if known:
6A natural or man-made discontinuity in the OHWM does not necessarily severjurisdiction (e.g., where the stream temporarily flows underground, or where
the OH WM has been removed by development or agricultural practices). Where there is a break in the OHWM that is unrelated to the waterbody's flow
regime (e.g., flow over a rock outcrop or through a culvert), the agencies will look for indicators of flow above and below the break.
'Ibid.
(iv) Biological Characteristics. Channel supports (check all that apply):
? Riparian corridor. Characteristics (type, average width):
? Wetland fringe. Characteristics:
? Habitat for:
? Federally Listed species. Explain findings:
? Fish/spawn areas. Explain findings:
? Other environmentally-sensitive species. Explain findings:
? Aquatic/wildlife diversity. Explain findings:
2. Characteristics of wetlands adjacent to non-TNW that flow directly or indirectly into TNW
(i) Physical Characteristics:
(a) General Wetland Characteristics:
Properties:
Wetland size: acres
Wetland type. Explain:
Wetland quality. Explain:
Project wetlands cross or serve as state boundaries. Explain:
(b) General Flow Relationship with Non-TNW:
Flow is: PicOGR. Explain:
Surface flow is: PickZist
Characteristics:
Subsurface flow: Pick List. Explain findings:
? Dye (or other) test performed:
(c) Wetland Adjacency Determination with Non-TNW:
? Directly abutting
? Not directly abutting
? Discrete wetland hydrologic connection. Explain:
? Ecological connection. Explain:
? Separated by berm barrier. Explain:
(d) Proximity (Relationship) to TNW
Project wetlands are Bi k-Thisf river miles from TNW.
Project waters are Pick-Tit aerial (straight) miles from. TNW.
Flow is from: P k liist.
Estimate approximate location of wetland as within the Pickk Ltsf floodplain.
(ii) Chemical Characteristics:
Characterize wetland system (e.g., water color is clear, brown, oil film on surface; water quality; general watershed
characteristics; etc.). Explain:
Identify specific pollutants, if known:
(iii) Biological Characteristics. Wetland supports (check all that apply):
? Riparian buffer. Characteristics (type, average width):
? Vegetation typetpercent cover. Explain:
? Habitat for:
? Federally Listed species. Explain findings:
? Fish/spawn areas. Explain findings:
? Other environmentally-sensitive species. Explain findings:
? Aquatic/wildlife diversity. Explain findings:
3. Characteristics of all wetlands adjacent to the tributary (if any)
All wetland(s) being considered in the cumulative analysis: PickList
Approximately ( ) acres in total are being considered in the cumulative analysis.
For each wetland, specify the following:
Directly abuts? (YIN) Size (in acres) Directly abuts? (Y/N) Size (in acres)
Summarize overall biological, chemical and physical functions being performed:
C. SIGNIFICANT NEXUS DETERMINATION
A significant nexus analysis will assess the flow characteristics and functions of the tributary itself and the functions performed
by any wetlands adjacent to the tributary to determine if they significantly affect the chemical, physical, and biological integrity
of a TNW. For each of the following situations, a significant nexus exists if the tributary, in combination with all of its adjacent
wetlands, has more than a speculative or insubstantial effect on the chemical, physical and/or biological integrity of a TNW.
Considerations when evaluating significant nexus include, but are not limited to the volume, duration, and frequency of the flow
of water in the tributary and its proximity to a TNW, and the functions performed by the tributary and all its adjacent
wetlands. It is not appropriate to determine significant nexus based solely on any specific threshold of distance (e.g. between a
tributary and its adjacent wetland or between a tributary and the TNW). Similarly, the fact an adjacent wetland lies within or
outside of a floodplain is not solely determinative of significant nexus.
Draw connections between the features documented and the effects on the TNW, as identified in the Rapanos Guidance and
discussed in the Instructional Guidebook. Factors to consider include, for example:
• Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to cant' pollutants or flood waters to
TNWs, or to reduce the amount of pollutants or flood waters reaching a TNW?
• Does the tributary, in combination with its adjacent wetlands (if any), provide habitat and lifecycle support functions for fish and
other species, such as feeding, nesting, spawning, or rearing young for species that are present in the TNW?
• Does the tributary, in combination with its adjacent wetlands (if any), have the capacity to transfer nutrients and organic carbon that
support downstream foodwebs?
• Does the tributary, in combination with its adjacent wetlands (if any), have other relationships to the physical, chemical, or
biological integrity of the TNW?
Note: the above list of considerations is not inclusive and other functions observed or known to occur should be documented.
below:
1. Significant nexus findings for non-RPW that has no adjacent wetlands and flows directly or indirectly into TNWs. Explain
findings of presence or absence of significant nexus below, based on the tributary itself, then go to Section III.D:
2. Significant nexus findings for non-RPW and its adjacent wetlands, where the non-RPW flows directly or indirectly into
TNWs. Explain findings of presence or absence of significant nexus below, based on the tributary in combination with all of its
adjacent wetlands, then go to Section III.D:
3. Significant nexus findings for wetlands adjacent to an RPW but that do not directly abut the RPW. Explain findings of
presence or absence of significant nexus below, based on the tributary in combination with all of its adjacent wetlands, then go to
Section III.D:
D. DETERMINATIONS OF JURISDICTIONAL FINDINGS. THE SUBJECT WATERS[WETLANDS ARE (CHECK ALL
THAT APPLY):
1. TNWs and Adjacent Wetlands. Check all that apply and provide size estimates in review area:
® TNWs: I801inear feet] 65width (ft), Or, acres.
-.H Wetlands adjacent to TNWs: acres.
2. RPWs that flow directly or indirectly into TNWs.
Q Tributaries of TNWs where tributaries typically flow year-round are jurisdictional. Provide data and rationale indicating that
tributary is perennial:
Q Tributaries of TNW where tributaries have continuous flow "seasonally" (e.g., typically three months each year) are
jurisdictional. Data supporting this conclusion is provided at Section III.B. Provide rationale indicating that tributary flows
seasonally:
Provide estimates forjurisdictional waters in the review area (check all that apply):
[D Tributary waters: linear feet width (ft).
E] Other non-wetland waters: acres.
Identify type(s) of waters:
3. Non-RPWs that flow directly or indirectly into TNWs.
E] Waterbody that is not a TNW or an RPW, but flows directly or indirectly into a TNW, and it has a significant nexus with a
TNW is jurisdictional. Data supporting this conclusion is provided at Section III.C.
Provide estimates for jurisdictional waters within the review area (check all that apply):
M Tributary waters: linear feet width (ft).
Q Other non-wetland waters: acres.
Identify type(s) of waters:
4. Wetlands directly abutting an RPW that flow directly or indirectly into TNWs.
Q Wetlands directly abut RPW and thus are jurisdictional as adjacent wetlands.
Wetlands directly abutting an RPW where tributaries typically flow year-round. Provide data and rationale
indicating that tributary is perennial in Section III.D.2, above. Provide rationale indicating that wetland is
directly abutting an RPW:
Q Wetlands directly abutting an RPW where tributaries typically flow "seasonally." Provide data indicating that tributary is
seasonal in Section III.B and rationale in Section III.D.2, above. Provide rationale indicating that wetland is directly
abutting an RPW:
Provide acreage estimates forjurisdictional wetlands in the review area: acres.
5. Wetlands adjacent to but not directly abutting an RPW that flow directly or indirectly into TNWs.
ED Wetlands that do not directly abut an RPW, but when considered in combination with the tributary to which they are adjacent
and with similarly situated adjacent wetlands, have a significant nexus with a TNW arejurisidictional. Data supporting this
conclusion is provided at Section III.C.
Provide acreage estimates for jurisdictional wetlands in the review area: acres.
6. Wetlands adjacent to non-RPWs that flow directly or indirectly into TNWs.
Q Wetlands adjacent to such waters, and have when considered in combination with the tributary to which they are adjacent and
with similarly situated adjacent wetlands, have a significant nexus with a TNW are jurisdictional. Data supporting this
conclusion is provided at Section III.C.
Provide estimates forjurisdictional wetlands in the review area: acres.
7. Impoundments of jurisdictional waters.'
As a general rule, the impoundment of ajurisdictional tributary remains jurisdictional.
M Demonstrate that impoundment was created from "waters of the U.S.," or
Q Demonstrate that water meets the criteria for one of the categories presented above (1-6), or
Q Demonstrate that water is isolated with a nexus to commerce (see E below).
E. ISOLATED (INTERSTATE OR INTRA-STATE] WATERS, INCLUDING ISOLATED WETLANDS, THE USE,
DEGRADATION OR DESTRUCTION OF WHICH COULD AFFECT INTERSTATE COMMERCE, INCLUDING ANY
SUCH WATERS (CHECK ALL THAT APPLY):"'
?ri.' which are or could be used by interstate or foreign travelers for recreational or other purposes.
from which fish or shellfish are or could be taken and sold in interstate or foreign commerce.
Q which are or could be used for industrial purposes by industries in interstate commerce.
Q Interstate isolated waters. Explain:
Q Other factors. Explain:
Identify water body and summarize rationale supporting determination
'See Footnote # 3.
° To complete the analysis refer to the key in Section III.D.6 of the Instructional Guidebook.
10 Prior to asserting or declining CWA jurisdiction based solely on this category, Corps Districts will elevate the action to Corps and EPA HQ for
review consistent with the process described in the Corps/EPA Memorandum Regarding CWA Act Jurisdiction Following Rapanos.
Provide estimates forjurisdictional waters in the review area (check all that apply):
Tributary waters: linear feet width (fi).
Other non-wetland waters: acres.
Identify type(s) of waters:
? Wetlands: acres.
F. NON-JURISDICTIONAL WATERS, INCLUDING WETLANDS (CHECK ALL THAT APPLY):
? If potential wetlands were assessed within the review area, these areas did not meet the criteria in the 1987 Corps of Engineers
Wetland Delineation Manual and/or appropriate Regional Supplements.
Review area included isolated waters with no substantial nexus to interstate (or foreign) commerce.
? Prior to the Jan 2001 Supreme Court decision in "SWANCC," the review area would have been regulated based solely on the
"Migratory Bird Rule" (MBR).
0 Waters do not meet the "Significant Nexus" standard, where such a finding is required forjurisdiction. Explain:
i" Other: (explain, if not covered above):
Provide acreage estimates for non-jurisdictional waters in the review area, where the sole potential basis of jurisdiction is the MBR
factors (i.e., presence of migratory birds, presence of endangered species, use of water for irrigated agriculture), using best professional
judgment (check all that apply):
Non-wetland waters (i.e., rivers, streams): linear feet width (ft). -
0 Lakes/ponds: acres.
Other non-wetland waters: acres. List type of aquatic resource:
E] Wetlands: acres.
Provide acreage estimates for non jurisdictional waters in the review area that do not meet the "Significant Nexus" standard, where such
a finding is required forjurisdiction-(check all that apply):
E] Non-wetland waters (i.e., rivers, streams): linear feet, width (ft).
? Lakes/ponds: acres.
0 Other non-wetland waters: acres. List type of aquatic resource:
Q Wetlands: acres.
SECTION IV: DATA SOURCES.
A. SUPPORTING DATA. Data reviewed for JD (check all that apply - checked items shall be included in case file and, where checked
and requested, appropriately reference sources below):
® Maps, plans, plots or plat submitted by or on behalf of the applicant/consultant
Data sheets prepared/submitted by or on behalf of the applicant/consultant,
? Office concurs with data sheets/delineation report.
? Office does not concur with data sheets/delineation report.
0 Data sheets prepared by the Corps:
FLI Corps navigable waters' study:
U.S. Geological Survey Hydrologic Atlas:
? USGS NHD data.
? USGS 8 and 12 digit HUC maps.
? U.S. Geological Survey map(s). Cite scale & quad name:
E] USDA Natural Resources Conservation Service Soil Survey. Citation:
E] National wetlands inventory map(s). Cite name:
State/Local wetland inventory map(s):
Q FEMA/FIRM maps:
100-year Floodplain Elevation is: (National Geodectic Vertical Datum of 1929)
t Photographs: ? Aerial (Name & Date):
or ? Other (Name & Date):
Previous detemtination(s). File no. and date of response letter:
'?'- Applicable/supporting case law:
? Applicable/supporting scientific literature:
? Other information (please specify):
B. ADDITIONAL COMMENTS TO SUPPORT JD:

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STORMWATER MANAGEMENT PLAN NARRATIVE
TIP No. B-3656 (33202.1.2)
Haywood County
June 2010
Project nescription
This project consists of approach roadway work and the replacement of Bridge #419 over Pigeon River on
US 19-23-74 (Park Street) in downtown Canton. The existing two-lane facility serves westbound traffic, and
it has 11 ft. lanes with 5 ft. wide sidewalks on either side across the bridge. The proposed bridge will be
wider, comprised of three lanes with 12 ft, lanes and 4 ft. paved shoulders plus 5.5 ft. wide sidewalks on
either side. The existing 188 ft. bridge (four spans at 47 ft. ea.) will be replaced with a 225 ft. long (three
spans at 75 ft. ea.) bridge supported by 33-inch reinforced concrete box-beam girders on drilled-shaft
reinforced concrete piers. The existing bridge has vertical concrete abutments. These will be removed, and
the new bridge will have sloping "spill-through" type abutments; hence, the need for the longer bridge
length. Sorrels Street, which intersects with Park Street immediately at the east end of the existing bridge
will need to be realigned approximately 40 ft. to the east of its present location in order to accommodate the
proposed bridge and meet current roadway design standards. The existing roadway grade is at essentially
the same elevation as the adjacent properties' ground level, as there are numerous driveways and side
parking areas to access adjacent businesses along this street in downtown Canton. Therefore, the existing
roadway grade is being maintained. The roadway vertical alignment crests on the existing bridge, as it will
also on the proposed replacement bridge. Pursuant to a recent decision by Town of Canton in April 2010, .
NCDOT has agreed to design the bridge to accommodate a future greenway crossing under the east end of
the bridge. This will be accomplished with a vertical abutment on the east end, and excavation of the east
river bank underneath the bridge to provide 8 ft. vertical clearance for the future trail.
Project Involvement
The project will require only minimal widening of the existing roadway approaches. Guardrail will be
added on the south side of the east end of the bridge, turning onto the west side of the realigned Sorrells
Street. There are existing closed storm drain systems east and west of the existing bridge which outfall on
the downstream (north) side of the bridge onto the banks of Pigeon River. Stormwater runoff west of the
bridge will be collected and conveyed in the existing storm drain system. Stormwater runoff east of the
bridge will be partially be collected in the existing system; however, a portion of the existing storm drain
system will be replaced to remove the system from being underneath the travelway. The existing outfall
location on the east side will be utilized, and the slope of the replacement system will be consistent with that
of the exisitng system in order to minimize the outfall flow velocity, and a rip-rap pad will be provided at the
outlet to prevent erosion.
At this location, Pigeon River has a Best Usage Classification of Class C - suitable for aquatic life, secondary
recreation, and as a source of fresh water (source: DWQ BIMS). Pigeon River is in the French Broad River
watershed, which is also is subject to Tennessee Valley Authority regulations. This location on Pigeon River
is not a designated trout stream. A recent survey of the Pigeon River at the site of B-3656 turned up the
federally endangered Appalachian elktoe (mussel species). As a result, a formal Biological Assessment
consultation was held on the project site on October 22, 2009. At this consultation, it was noted that there
Page.
1 /2
are Appalachian elktoe approximately 50 ft. upstream of the edge of the existing bridge; however, the
presence of a dam downstream of the bridge prevents migration of the mussels further downstream.
Therefore, it was recommended that any utility relocations, bridge construction work, etc. be carried out
primarily on the downstream side of the existing bridge. Temporary causeways will be needed for bridge
demolition and replacement construction. It was recommended that no more than half the existing waterway
be blocked by the temporary causeways at any given time during construction; however, upon further
review, it will be necessary briefly during the demolition stage to block more than half of the waterway. A
provision will be specified in the construction sequence that this stage of construction shall not exceed
14 days. (See attached Addendum for details regarding the construction sequence.)
Best Management Practices
Best Management Practices (BMPs) utilized on the project are as follows:
-No deck drains on bridge
-Traffic will be detoured offsite during construction to minimize temporary impacts to the river and reduce
the time of construction disturbance.
-Existing road fill and vertical concrete abutments will be removed, and new bridge will have increased
waterway opening, which will improve bridge conveyance and reduce flow velocity and erosion potential.
- Outfall pipe for storm drain system northeast of bridge will be constructed at shallow slope consistent with
that of existing system to minimize flow velocity at outlet. New rip-rap pad at outlet will further reduce
velocity.
-New bridge has one less pier (bent) in the river than the existtng bridge.
-Rip-rap slope protection on banks beneath bridge will stabilize the embankment and reduce potential for
erosion.
Page'.
2/2
Addendum to Stormwater Management Plan
B-3656 NARRATIVE FOR SEQUENCE OF CONSTRUCTION
The existing bridge on US 19 over the Pigeon River in Canton, NC consists of concrete deck girders
atop masonry abutments and reinforced concrete web bents with reinforced concrete footings
founded on timber piles.
Removing the existing bridge and constructing the proposed bridge will require temporary stone
workpads in the Pigeon River. The removal and construction is proposed to begin from the east side
of the river and is shown as Phase 1. Phase I has 3 stages. The work from the west is shown as Phase
11, and Phase 11 has 3 stages. Removal of the existing superstructure does not propose significant
logistical concerns and therefore is not addressed in any of the following discussion, but the removal
may take place before or during any of the early stages. Twice during the removal and construction
more than 50% of the Pigeon River will be blocked by the workpads. (See attached drawings.)
Phase I Stage 1 workpad will block 56% of the Pigeon River. This Phase and Stage are required for
the removal of Existing Bent 2 which is in the center of the river. The critical need is for removing
the footing and pulling or cutting the piles. The footing is estimated to be 6' thick and must be
broken apart before removal. The piles may be removed or cut off at the river bed. To keep debris
from the river, the Bent 2 footing and piles need to be surrounded by the workpad. Existing Bent 3
may be removed at this stage or the next. When Bent 2 is removed, the workpad must be reduced to
Stage 2. Phase I Stage I workpad will be in place no more than 14 calendar days.
Phase I Stage 2 will block 34% of the river. This workpad is required for constructing the drilled
pier foundations of proposed Bent 2. This workpad allows access to the drilled pier locations, but
more importantly protects the river from drilling muds and spoil coming from the drilled hole. When
the bent construction is completed, the workpad will be reduced to Stage 3 behind the mudflat.
Phase I Stage 3 will block 21 % of the river. This workpad stage is requested for cranes to set box
beams in Spans B and C. The setting of Span B box beams is described below. Phase I Stage 3
remains in place until all box beams are set in Spans B and C.
Phase II Stage 1 workpad will block 27% of the river, however it is in place along with Phase I Stage
3 workpad. These two workpads will block 48% of the river.. This Phase and Stage.are required for
the removal of Existing Bent 1. The needs here are described above for the removal of Bent 2. After
the Bent is removed, the workpad will be increased for Phase II Stage 2.
Phase II Stage 2 will block 34% of the river, being in concurrently with Phase 1 Stage 3 will cause
55% of the river to be blocked. This workpad is required for the construction of the drilled pier
foundations of proposed Bent 1. The above described need for constructing Bent 2 is the same for
Bent 1. This stage will be in place approximately 60 calendar days.
Phase II Stage3 reduces the workpad to the limits of Stage I for the setting of box beams and
blocking 48% of the river. For Span B, trucks will deliver box beams to the west end of the bridge.
A crane located on the workpad will pick up box beams from the trucks and set them in Span A. The
crane will reposition to pick up only the west end of the box beam and the crane in the Phase I Stage
3 position will reach over Bent 2 to Bent 1, picking up the east end of the box beam, and together the
two cranes will lift then set the box beams in Span B. The workpad remains in place until all box
beams are set in Spans A and B.
After the box beams are set, the temporary workpads will be removed
B3656 Sequence of Cor
Page(s) 1 of 8
B-3656
lAO I
?• /RETAI
ALLPHASES
IoN PHASE I
1"=60'
REMOVE 25 FT.
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............ ..;.......
18
19
20
B3656 Sequence of Car
Page(s) 2 of 8
B-3656
I ? ?
I I
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PHASE I STAGE 1
PHASE I CONSTRUCT
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83656 Sequence of Coi
Page(s) 3 of 8
B-3656
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PHASE I CONSTRUCT
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16 17 18
f9
20
B3656 Sequence of
Page(s) 4 of 8
B-3656
10
10
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63656 Sequence of Cons on I \
Page(s) 5 of 8
N N
B-3656 PHASE II STAGE 1 or 3 1" = 60'
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B3656 Sequence
Page(s) 6 of 8
i I I B-3656

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B3656 Sequence of
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B-3656
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ENVIRONMEENTALANALYSIS BRANCH
HAMOOD COUNTY
REPLACE BRIDGE No. 419 ON CIS 19-23-774
OVER PIGEON RIVER
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PROPERTY OWNERS
NAMES AND ADDRESSES
PARCEL NQ NAMES ADDRESSES
BETHEL MISSIONARY BAPTIST CHURCH
5868 PIGEON RD
CANTON, NC 28716
4 CARLENE GREENE CRISP 36951 MARTIN DR.
GLADE SPRING, VA 24340
5 BLUE RIDGE PAPER PRODUCTS, INC. P.O. BOX 4000
CANTON, NC 28716
6 BLUE RIDGE PAPER PRODUCTS, INC. P.O. BOX 4000
CANTON, NC 28716
7 TOWN OF CANTON P.O. BOX 4000
CANTON, NC 28716
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