HomeMy WebLinkAbout20130829 Ver 1_Application_20130806
S TATE OF N ORTH C AROLINA
D EPARTMENT OF T RANSPORTATION
P AT L. M C C RORY A NTHONY J. T ATA
G OVERNOR S ECRETARY
MAILING ADDRESS:
NC D EPARTMENT O F T RANSPORTATION
P ROJECT D EVELOPMENT AND E NVIRONMENTAL A NALYSIS
1598 M AIL S ERVICE C ENTER
R ALEIGH NC 27699-1598
T ELEPHONE : 919-707-6000
FAX: 919-212-5785
W EBSITE :NCDOT .GOV
LOCATION:
C ENTURY C ENTER , B UILDING B
1020 B IRCH R IDGE D RIVE
R ALEIGH NC 27610
July 15, 2013
U. S. Army Corps of Engineers
Regulatory Field Office
151 Patton Avenue, Room 208
Asheville, NC 28801-5006
ATTN: Ms. Loretta Beckwith
NCDOT Coordinator
Subject: Application for Section 404 Nationwide Permit 23, 33, 13 and Section
401 Water Quality Certification for the proposed replacement of Bridge
No. 309 over Featherstone Creek on SR 1528 (Locust Grove Road) in
Henderson County, Federal Aid Project No. BRZ-1528(6), Division 14, TIP
No. B-4988, Debit $570 from WBS 40156.1.1.
Dear Madam:
The North Carolina Department of Transporta tion (NCDOT) proposes to replace Bridge No.
309 over Featherstone Creek on SR 1529 with a 77’ long, 8’x6’ double-barrel reinforced
concrete box culvert (RCBC) on the existing ali gnment. Traffic will be maintained during
construction via an offsite detour.
There will be 78 linear feet of permanent im pacts, 126 linear feet (0.02 ac) of temporary
impacts and 75 linear feet of bank stabilization due to installation of the proposed RCBC.
Please see enclosed copies of the Pre-Cons truction Notification (PCN), EEP acceptance
letter, stormwater management plan, perm it drawings and design plans for the above-
referenced project. The Programmatic Categori cal Exclusion (PCE) was completed in April
2012 and distributed shortly thereafter. Additional copies are available upon request.
1
Pre-Construction Notification (PCN) Form
A. Applicant Information
1. Processing
1a. Type(s) of approval sought from the
Corps: Section 404 Permit Section 10 Permit
1b. Specify Nationwide Permit (NWP) number: 13 23 33 or General Permit (GP) number:
1c. 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
1e. 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 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: Replacement of Bridge 309 over Featherstone Creek on SR 1528
2b. County: Henderson
2c. Nearest municipality / town: Hendersonville
2d. Subdivision name: not applicable
2e. NCDOT only, T.I.P. or state
project no: B-4988
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.: (919) 707-6108
3g. Fax no.: (919) 212-5785
3h. Email address: ekcheely@ncdot.gov
Office Use Only:
Corps action ID no. _____________
DWQ project no. _______________
Form Version 1.3 Dec 10 2008
2
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.:
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:
3
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: 35.39058 Longitude: - 82.44411
(DD.DDDDDD) (-DD.DDDDDD)
1c. Property size: 0.7 acre
2. Surface Waters
2a. Name of nearest body of water (stream, river, etc.) to
proposed project: Featherstone Creek
2b. Water Quality Classification of nearest receiving water: C
2c. River basin: French Broad
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:
The land use within the vicinity of the project consists of about 65% forest land (including mixed hardwood and acid cove
forests), 20% developed or disturbed lands (roadsides and resi dential areas) and 15% cultivated land (agricultural fields
and pastures).
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:
230
3d. Explain the purpose of the proposed project:
The purpose of this project is to replace a structurally deficient (sufficiency rating of 20 of 100 and structural evaluation
appraisal of 2 of 9) bridge.
3e. Describe the overall project in detail, including the type of equipment to be used:
The project involves replacing a 25-foot single-span bridge wit h a 76'9" long, 2 @ 8'x6' reinforced concrete box culvert
(RCBC) on the existing alignment with an off-site detour. 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: Only perennial streams, no prior JD needed
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): Jason Dilday
Agency/Consultant Company: NCDOT
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.
4
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.
Wetland impact
number –
Permanent (P) or
Temporary (T)
2b.
Type of impact
2c.
Type of wetland
(if known)
2d.
Forested
2e.
Type of jurisdiction
(Corps - 404, 10
DWQ – non-404, other)
2f.
Area of impact
(acres)
Site 1 P T Yes
No
Corps
DWQ
Site 2 P T Yes
No
Corps
DWQ
Site 3 P T Yes
No
Corps
DWQ
Site 4 P T Yes
No
Corps
DWQ
2g . Total wetland impacts 0 Permanent
0 Temporary
2h. Comments: No wetlands within construction limits
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.
Stream impact
number -
Permanent (P) or
Temporary (T)
3b.
Type of impact
3c.
Stream name
3d.
Perennial
(PER) or
intermittent
(INT)?
3e.
Type of
jurisdiction
(Corps - 404, 10
DWQ – non-404,
other)
3f.
Average
stream width
(feet)
3g.
Impact
length
(linear feet)
Site 1 P T Culvert
(RCBC)
Featherstone
Creek
PER
INT
Corps
DWQ 7 78
Site 1 P T Bank
Stabilization
Featherstone
Creek
PER
INT
Corps
DWQ 7 75
Site 1 P T Culvert
(RCBC)
Featherstone
Creek
PER
INT
Corps
DWQ 7 126
(0.02 ac)
Site 2 P T PER
INT
Corps
DWQ
Site 3 P T PER
INT
Corps
DWQ
Site 4 P T PER
INT
Corps
DWQ
3h. Total stream and tributary impacts 153 Perm
126 Temp
3i. Comments: Replace bridge with 2@8'x6' RCBC. Permanent impacts resulting from new RCBC itself. Bank stabilization at
the inlet and outlet as well due to the floodplain bench construction. The existing alignment of Featherstone Creek will be
maintained. Temporary impacts are at inlet & outlet of proposed RCBC associated with its installation.
5
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 individually list all open water impacts below.
4a.
Open water
impact number –
Permanent (P) or
Temporary (T)
4b.
Name of
waterbody
(if applicable)
4c.
Type of impact
4d.
Waterbody type
4e.
Area of impact (acres)
O1 P T
O2 P T
O3 P T
O4 P T
4f. Total open water impacts 0 Permanent
0 Temporary
4g. Comments: No open water within construction limits.
5. Pond or Lake Construction
If pond or lake construction proposed, then complete the chart below.
5a.
Pond ID
number
5b.
Proposed use or
purpose of pond
5c.
Wetland Impacts (acres)
5d.
Stream Impacts (feet)
5e.
Upland
(acres)
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):
5k. Method of construction:
6
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 any impacts require mitigation, then you MUST fill out Section D of this form.
6a .
Project is in which protected basin?
Neuse Tar-Pamlico Other:
Catawba Randleman
6b.
Buffer impact
number –
Permanent (P) or
Temporary (T)
6c.
Reason for impact
6d.
Stream name
6e.
Buffer
mitigation
required?
6f.
Zone 1 impact
(square feet)
6g.
Zone 2 impact
(square feet)
B1 P T Yes
No
B2 P T Yes
No
B3 P T Yes
No
6h. Total buffer impacts
6i. Comments: This project is not located within a protected buffer area.
7
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
The proposed double-barrel reinforced concrete box culvert (RCBC) will be located on the same alignment and grade as
the existing bridge, maintaining the existing channel loca tion and alignment of Featherstone Creek. A floodplain bench
on the inlet and outlet ends of the RCBC will direct the stream through the baseflow cell, with the remaining overflow cell
being utilized for high-water events. The overflow cell will have a 2' sill at each end, and the baseflow cell will have a 1.5 '
sill at each end. Natural stone bed material will be placed in the baseflow barrel. The drainage area for the existing
crossing is only 1.3 miles and the proposed culvert has been designed such that the slope and velocities are consistent
with the existing stream to the greatest extent practicable.
1b. Specifically describe measures taken to avoid or mi nimize the proposed impacts through construction techniques.
Traffic will be maintained off-site during construction. Best Management Practices (BMPs) will be utilized during
construction to attempt to reduce the stormwater impacts to the receiving stream due to erosion and runoff.
2. Compensatory Mitigation for Impacts to Wate rs 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
If no, explain:
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
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: Total requested is 153 linear feet. 153 linear feet (@1:1 for
NCDWQ); 78 linear feet (@ 2:1 for USACE)
4c. If using stream mitigation, stream temperature: warm cool cold
4d. Buffer mitigation requested (DWQ only): 0 square feet
4e. Riparian wetland mitigation requested: 0 acres
4f. Non-riparian wetland mitigation requested: 0 acres
4g. Coastal (tidal) wetland mitigation requested: 0 acres
4h. Comments: Total mitigation required by USACE: 78 linear feet (likely at 2:1). Total mitigation required by NCDWQ: 153
linear feet @ 1:1. The NCDOT does not propose mitigation for the 126 linear feet of temporary stream impacts associated
with the installation of the new RCBC. These temporary impacts do not require fill in the stream bed and, therefore, under
Section 404 of the Clean Water Act, do not constitute Loss of Waters of the U.S. and are not subject to compensatory
mitigation.
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.
8
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 th e
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:
9
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
within one of the NC Riparian Buffer Protection Rules?
Yes No
1b. If yes, then is a diffuse flow plan included? If not, explain why.
Comments: If required from 1a, see attached buffer permit drawings. Yes No
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, narrative description of the plan:
See attached permit drawings.
2e. Who will be responsible for the review of the Stormwater Management Plan?
Certified Local Government
DWQ Stormwater Program
DWQ 401 Unit
3. Certified Local Government Stormwater Review
3a. In which local government’s jurisdiction is this project? not applicable
3b. Which of the following locally-implemented stormwater management programs
apply (check all that apply):
Phase II
NSW
USMP
Water Supply Watershed
Other:
3c. Has the approved Stormwater Management Plan with proof of approval been
attached?
Yes No
4. DWQ Stormwater Program Review
4a. Which of the following state-implemented stormwater management programs apply
(check all that apply):
Coastal counties
HQW
ORW
Session Law 2006-246
Other:
4b. Has the approved Stormwater Management Plan with proof of approval been
attached? Yes No N/A
5. DWQ 401 Unit Stormwater Review
5a. Does the Stormwater Management Plan meet the appropriate requirements? Yes No N/A
5b. Have all of the 401 Unit submittal requirements been met? Yes No N/A
10
F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
1a. Does the project involve an expenditure of public (federal/state/local) funds or the
use of public (federal/state) land? Yes No
1b. 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
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
Yes No
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.)
Comments: Programmatic Categorical Exclusion (PCE) approved 4/26/12
Yes No
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,
or Riparian Buffer Rules (15A NCAC 2B .0200)?
Yes No
2b. 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
additional development, which could impact nearby downstream water quality?
Yes
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 disposit ion (non-discharge or discharge) of wastewater generated from
the proposed project, or available capacity of the subject facility.
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1
CATEGORICAL EXCLUSION ACTION CLASSIFICATION FORM
TIP Project No. B -4 988
W.B.S. No. 40156.1.1
Federal Project No. BRZ -1 528 (6 )
A. Project Description:
The purpose of this project is to replace Henderson County B ridge No. 309 on
SR 1528 over Featherstone Creek. Bridge No. 309 is 25 feet lo ng. The
replacement structure will consist of a double barrel, 8-foot wide by 6-foot high
reinforced concrete box culvert. The culvert size is based on preliminary design
information and is set by hydraulic requirements. The r oadway grade of the new
structure will be approximately the same as the existing gr ade.
The approach roadway will extend approximately 120 feet from the west end of
the culvert and 120 feet from the east end of the culvert. The approaches will be
widened to include a 20-foot pavement width providing two 10-foot lanes. Three-
foot paved shoulders will be provided on each side (6-foot sh oulders where
guardrail is included). The roadway will be designed as a Rura l Local Route
using Subregional Tier guidelines with a 25 mile per hour des ign speed.
Traffic will be detoured off-site during construction (see Figure 1).
B. Purpose and Need:
NCDOT Bridge Management Unit records indicate Bridge No. 309 has a
sufficiency rating of 20 out of a possible 100 for a new st ructure.
The bridge is considered structurally deficient due to superst ructure condition of 4
out of 9 and a structural evaluation appraisal of 2 out of 9 according t o Federal
Highway Administration (FHWA) standards and therefore eligible for FHWA’s
Highway Bridge Program.
The bridge deck and rails of Bridge No. 309 have timber elemen ts that are forty-
nine years old. Timber components have a typical life e xpectancy between 40 to
50 years due to the natural deterioration rate of wood. Re habilitation of a timber
structure is generally practical only when a few elements are damaged or
prematurely deteriorated. However, past a certain degree of deterioration, most
timber elements become impractical to maintain and upon eligibility are
programmed for replacement. Timber components of bridge N o. 309 are
experiencing an increasing degree of deterioration that can no longer be addressed
by reasonable maintenance activities; therefore, the b ridge is approaching the end
of its useful life.
2
C. Proposed Improvements:
Circle one or more of the following Type II improvemen ts which apply to the
project:
1. Modernization of a highway by resurfacing, restoration, r ehabilitation,
reconstruction, adding shoulders, or adding auxiliary lanes (e.g., parking,
weaving, turning, climbing).
a. Restoring, Resurfacing, Rehabilitating, and Reconstructing
pavement (3R and 4R improvements)
b. Widening roadway and shoulders without adding through lanes
c. Modernizing gore treatments
d. Constructing lane improvements (merge, auxiliary, and tur n lanes)
e. Adding shoulder drains
f. Replacing and rehabilitating culverts, inlets, and draina ge pipes,
including safety treatments
g. Providing driveway pipes
h. Performing minor bridge widening (less than one through lane)
i. Slide Stabilization
j. Structural BMP’s for water quality improvement
2. Highway safety or traffic operations improvement proj ects including the
installation of ramp metering control devices and lighting.
a. Installing ramp metering devices
b. Installing lights
c. Adding or upgrading guardrail
d. Installing safety barriers including Jersey type barrie rs and pier
protection
e. Installing or replacing impact attenuators
f. Upgrading medians including adding or upgrading median barrier s
g. Improving intersections including relocation and/or realig nment
h. Making minor roadway realignment
i. Channelizing traffic
j. Performing clear zone safety improvements including re moving
hazards and flattening slopes
k. Implementing traffic aid systems, signals, and motor ist aid
l. Installing bridge safety hardware including bridge rail ret rofit
3. Bridge rehabilitation, reconstruction, or replacement o r the construction of
grade separation to replace existing at-grade railroad cros sings.
a. Rehabilitating, reconstructing, or replacing bridge approa ch slabs
b. Rehabilitating or replacing bridge decks
c. Rehabilitating bridges including painting (no red lead paint), scour
repair, fender systems, and minor structural improvement s
d. Replacing a bridge (structure and/or fill)
4. Transportation corridor fringe parking facilities.
5. Construction of new truck weigh stations or rest are as.
3
6. Approvals for disposal of excess right-of-way or for joint or limited use of
right-of-way, where the proposed use does not have signifi cant adverse
impacts.
7. Approvals for changes in access control.
8. Construction of new bus storage and maintenance facili ties in areas used
predominantly for industrial or transportation purposes wher e such
construction is not inconsistent with existing zoning and located on or near
a street with adequate capacity to handle anticipated bus a nd support
vehicle traffic.
9. Rehabilitation or reconstruction of existing rail and b us buildings and
ancillary facilities where only minor amounts of addit ional land are
required and there is not a substantial increase in the number of users.
10. Construction of bus transfer facilities (an open are a consisting of
passenger shelters, boarding areas, kiosks and related st reet
improvements) when located in a commercial area or oth er high activity
center in which there is adequate street capacity for pro jected bus traffic.
11. Construction of rail storage and maintenance facilit ies in areas used
predominantly for industrial or transportation purposes wher e such
construction is not inconsistent with existing zoning and where there is no
significant noise impact on the surrounding community.
12. Acquisition of land for hardship or protective purposes, advanc e land
acquisition loans under section 3(b) of the UMT Act. Hardship and
protective buying will be permitted only for a particular par cel or a limited
number of parcels. These types of land acquisition qualify for a CE only
where the acquisition will not limit the evaluation o f alternatives,
including shifts in alignment for planned construction project s, which may
be required in the NEPA process. No project developmen t on such land
may proceed until the NEPA process has been completed.
13. Acquisition and construction of wetland, stream and endange red species
mitigation sites.
14. Remedial activities involving the removal, treatment or m onitoring of soil
or groundwater contamination pursuant to state or federal r emediation
guidelines.
4
D. Special Project Information:
The estimated costs, based on 2012 prices, are as follows:
Structure $ 148,000
Roadway Approaches $ 118,000
Detour Structure and Approaches - 0 -
Structure Removal $ 15,000
Misc. & Mob. $ 51,000
Eng. & Contingencies $ 58,000
Total Construction Cost $ 390,000
Right-of-way Costs $ 19,975
Right-of-way Utility Costs $ 10,240
Total Project Cost $ 420,215
Estimated Traffic:
Current - 400 vpd
Year 2035 - 1900 vpd
TTST - 1%
Dual - 7%
Accidents: Traffic Engineering has evaluated a recent ten year period and found
two accidents occurring in the vicinity of the project. From the crash analysis
there does not appear to be identifiable crash patterns or obvious safety hazards
within the vicinity of the structure.
Design Exceptions: There are no anticipated design exceptions for this projec t.
Pedestrian and Bicycle Accommodations: This portion of SR 1528 is not a part
of a designated bicycle route nor is it listed in the Tr ansportation Improvement
Program (TIP) as a bicycle project. Additionally, ther e is no indication of
significant bike or pedestrian usage at the bridge. Neithe r permanent nor
temporary bicycle or pedestrian accommodations are required for this project.
Bridge Demolition: Bridge No. 309 has a timber bridge deck and timber rails.
The substructure is Yount Masonry and the girders are I -beams. The bridge
should be possible to remove with no resulting debris in t he water based on
standard demolition practices.
Alternatives Discussion:
No Build – The no build alternative would result in eventually cl osing the
road which is unacceptable given the volume of traffic served by SR 1528.
Rehabilitation – The bridge was constructed in 1963 and the timber
materials within the bridge are reaching the end of their useful life.
Rehabilitation would require replacing the timber componen ts which
would constitute effectively replacing the bridge.
5
Offsite Detour – Bridge No. 309 will be replaced on the existing
alignment. Traffic will be detoured offsite (see Figure 1) during the
construction period. NCDOT Guidelines for Evaluation of O ffsite Detours
for Bridge Replacement Projects considers multiple proj ect variables
beginning with the additional time traveled by the average road user
resulting from the offsite detour. The offsite detour for this project would
include SR 1560 and SR 1622. The detour for the average road user
would result in a delay of less than 5 minutes (1.4 miles additional travel).
Up to a 4-month duration of construction is expected on this project.
Based on the Guidelines, the use of an offsite detour requir es evaluating
EMS and school transportation needs. Henderson County Em ergency
Services along with Henderson County Schools Transportati on have
indicated that an offsite detour is acceptable. NCDOT Di vision 14 has
indicated that the condition of all roads, bridges and int ersections along
the detour are acceptable without improvement and concur with the use of
the detour.
Onsite Detour – An onsite detour was not evaluated due to the presence
of an acceptable offsite detour.
Staged Construction – Staged construction was not considered because
of the availability of an acceptable offsite detour.
New Alignment – Given that the alignment for SR 1528 is acceptable, a
new alignment was not considered as an alternative.
Structure Type : The current structure is a bridge built in 1963 and has a drainage
area of 1.3 square miles. The reason for building a bridge was not because a
culvert would not work but because the design, materials and labor were not
practical in the time when this structure was built. B ased on the drainage area and
design discharges, a 2 @ 8-foot wide by 6-foot high reinforce d concrete box
culvert was determined to be adequate from a hydraulics stan dpoint. The culvert
will be buried 1.5 feet below the streambed and will be de signed with sills at the
inlet and outlet ends of the culvert. A 1.5-foot sill will be placed in the main flow
barrel and 2-foot high sills will placed in the other bar rel with floodplain benches
at the entrance and outlet of the culvert to maintain normal channel flow. The
culvert will be designed such that the slope and velociti es are consistent with the
existing stream to the extent practicable. Because culv erts generally cost less,
require less maintenance throughout their service life and last longer than bridges,
a culvert is the preferred structure type.
6
Other Agency Comments:
The U.S. Environmental Protection Agency provided the follo wing project
comments:
1. Bridge supports should not be placed in the stream, if possi ble.
2. Bridge deck drains should not discharge directly into the strea m, and
stormwater should be pre-treated prior to discharge to a str eam or wetland.
3. Mechanical landclearing adjacent to the bridge should be li mited to the
extent possible, to avoid impacts to wetlands and stream s in the project
area.
Response: NCDOT will be replacing the existing bridge with a culver t.
Please see discussion of Structure Type on Page 5. NCD OT can best
manage its water quality impacts by performing work in and a round
bodies of water with the utmost care and by using Best Management
Practices (BMPs) that focus on minimizing sediment los s from a
project.
Public Involvement:
A letter was sent by the Location & Surveys Unit to all property owners affected
directly by this project. Property owners were invited to comment. No comments
have been received to date.
E. Threshold Criteria
The following evaluation of threshold criteria must b e completed for Type II
actions
ECOLOGICAL YES NO
(1) Will the project have a substantial impact on any
unique or important natural resource?
X
(2) Does the project involve habitat where federally
listed endangered or threatened species may occur?
X
(3) Will the project affect anadr a mous fish?
X
(4) If the project involves wetlands, is the amount of
permanent and/or temporary wetland taking less than
one -tenth (1/10) of an acre and have all practicable measures
to avoid and minimize wetland takings been evaluated?
X
7
(5) Will the project require the use of U. S. Forest Service lands?
X
(6) Will the quality of adjacent water resources be adversel y
impacted by proposed construction activities?
X
(7) Does the project involve waters classifie d as Outstanding
Resources Water s (O R W) and/or High Quality Waters (HQW)?
X
(8) Will the project require fill in waters of the United St ates
in any of the designated mountain trout counties?
X
(9) Does the project involve any known underground storage
tanks (UST's) or hazardous materials sites?
X
PERMITS AND COORDINATION YES NO
(10) If the project is located within a CAMA county, will the
project significantly affect the coastal zone a nd/or any
"Area of Environmental Concern" (AEC)?
X
(11) Does the project involve Coastal Barrier Resources Act
resources?
X
(12) Will a U. S. Coast Guard permit be required?
X
(13) Could the p roject result in the modification of any existing
regulatory floodway?
X
(14) Will the project require any stream relocations or chann el
changes?
X
SOCIAL, ECONOMIC, AND CULTURAL RESOURCES YES NO
(15) Will the project induce substantial impacts to planned
growth or land use for the area?
X
(16) Will the project require the relocation of any family o r
business?
X
(17) Will the project have a disproportionately high and ad verse
human health and environmental effect on any minority or
low -income population?
X
(18) If the project involves the acquisition of right of way , is the
amount of right of way acquisition considered minor?
X
8
(19) Will the project involve any changes in access control?
X
(20) Will the project substantially alter the usefulness
and/or land use of adjacent property?
X
(21) Will the project have an adverse effect on p ermanent
local traffic patterns or community cohesiveness?
X
(22) Is the project included in an approved thoroughfare plan
and/or Transportation Improvement Program (and is,
therefore, in conformance with the Clean Air Act of 1990 )?
X
(23) Is the project anticipated to cause an increase in traf fic
volumes?
X
(24) Will traffic be maintained during construction using existing
roads, staged construction, or on -site detours?
X
(25) If the project is a bridge replacement project, will th e bridge
be replaced at its existing location (along the existing facility)
and will all construction proposed in association with the
bridge replacement project be contained on the exist ing facility?
X
(26) Is there substantial controversy on social, economic, or
environmental grounds concerning the project?
X
(27) Is the project consistent with all Federal, State, an d local laws
relating to the environmental aspects of the proj ect?
X
(28) Will the project have an "effect" on structures/properti es
eligible for or listed on the National Register of H istoric Places?
X
(29) Will the project affect any archaeological remains whic h are
importa nt to history or pre -history?
X
(30) Will the project require the use of Section 4(f) resources
(public parks, recreation lands, wildlife and waterfowl re fuges,
historic sites, or historic bridges, as defined in Section 4(f)
of th e U. S. Department of Transportation Act of 1966)?
X
(31) Will the project result in any conversion of assisted publi c
recreation sites or facilities to non -recreation uses, as defined
by Section 6(f) of the Land and Water Conserv ation Act
of 1965, as amended?
X
(32) Will the project involve construction in, across, or a djacent
to a river designated as a component of or proposed for
inclusion in the National System of Wild and Scenic River s?
X
9
F. Additional Documentation Required for Unfavorable Res ponses in Part E
Response to Question 2: Marginal habitat for small whorled pogonia exists within th e
project study area,primarily in the southeast quadrant. The
forested area in this quadrant is primarily composed of whit e
pine and hardwoods with a fairly open shrub layer. A wa lking
visual survey of all potential areas of habitat within t he study
area was conducted by NCDOT biologists on July 3, 2007. No
individuals of this species were observed. A known population
of small whorled pogonia located off of US 64 in Transylvani a
County was visited earlier that same day. The plants at the
known site were up, in good condition and still within thei r
reproductive cycle. A check of the NHP database on January 9,
2008 showed no known occurrences of small whorled pogonia
within 1.0 mile of the study area.
Marginal habitat for white irisette exists within the pr oject
study area, primarily in the southeast quadrant. The fores ted
area in this quadrant is primarily composed of white pine a nd
hardwoods with a fairly open shrub layer. A walking visual
survey of all potential areas of habitat within the stud y area
was conducted by NCDOT biologists on July 3, 2007. No
individuals of this species were observed. A check of the NHP
database on January 9, 2008 showed no known occurrences of
white irisette within 1.0 mile of the study area.
Response to Question 8: A small amount of fill may be required between the bank of
Featherstone Creek and the side of the box culvert. T he
amount of fill will be minimized or eliminated during final
design and construction. In addition, the concrete flo or of the
culvert will be buried underneath the stream.
Response to Question 13 : Henderson County is a participant in the National Flo od
Insurance Program, administered by the Federal Emergency
Management Agency (FEMA). Currently the effective FEM A
floodplain mapping indicates that the subject crossing is
located within a flood hazard zone designated as Zone A.
However, restudy is in progress for Henderson County, and
according to preliminary study information available from NC
Floodplain Mapping Program, this flood zone will be upgraded
to a Zone AE, where 100-year base flood elevations will be
established in a ”Limited Detailed Flood Study”. The
Hydraulics Unit will coordinate with FEMA to determine if a
Conditional Letter of Map Revision (CLOMR) and a
subsequent final Letter of Map Revision (LOMR) are required
for the project. If required, the Division Resident Eng ineer will
submit sealed as-built construction plans to the Hydraulic s Unit
upon project completion certifying the project was built a s
shown on the construction plans.
N ORTH C AROLINA D EPARTMENT OF
TRANSPORTATION
D IVISION OF H IGHWAYS
P ROJECT D EVELOPMENT &
E NVIRONMENTAL ANALYSIS B RANCH
Figure 1
H ENDERSON C OUNTY
R EPLACE B RIDGE N O . 309 ON SR 1528
OVER F EATHERSTONE C REEK
B-4988
S TUDIED D ETOUR R OUTE