20131052 Ver 1_Application_20131001

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STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATTON
PAT L. MCCRORY
GOVERNOR
September 30, 2013
Mr. Steven Kichefski
Asheville Regulatory Field Office
US Arnty Corp of Engineers
151 Patton Avenue, Suite 208
Asheville, NC 28801-5006
AN [ xo1vY J. TnrA
SECRETARY
SUBJECT: Bridge #289 Replacement on SR 1309 (Boone Gap Lane), Alexander County
Dear Mr. Kichefski:
The North Cazolina Department of Transportation requests authorizarion to replace a
deteriorating bridge on SR 1309 (Boone Gap Lane) in Ale�nder County. NCDOT proposes to
replace the existing timber deck bridge at the same location with a double 43-foot, 8' x 5'
reinforced concrete box culvert. Riprap-faced floodplain benches will be constructed at the
culvert inlet/outlet in order to maintain "normal" channel dimensions. A temporary cofferdam
pumping system will be used to divert the stream around the conshuction site as needed. Any
areas affected by temporary cofferdam system will be restored to pre-project conditions. The
scope of the work will result in a total of 108 feet of permanent impacts (43 feet of culvert
impacts and 65 feet of floodplain bench impacts) to the Lower Little River, which is class�ed as
Class C Waters by the Division of Water Quality.
Any mirigation required shall be provided in accordance with the procedures detailed in the
USACE letter dated September l, 2004, from Mr. Ken Jolly to Dr. Gregory J. Thorpe. Attached
is a copy of the EEP mitigation request letter for 43 feet of culvert impacts.
A survey was conducted Maroh 19, 2012 for federally listed species for Alexander County
(USFWS listed dated September 22, 2010), wluch include the dwarf-flowered heartleaf
(HexastyZis nan�ora) and the bog Yurtle (Clemmys muhlenbergii). Suitable habitat for the
federally listed species does not exist in the project study azea. A cultural resources review of the
azea of potential impact was conducted. There are no archaeological sites or lustoric properties
which would be affected by the project. (Project Tracking No. 11-10-0011).
The project area is not located within'/z mile of any critical watershed area. SR 1309 is not a nxral
or urban arterial; therefore, hazazdous spill basins are not required. Enclosed is the hazazdous
spill basin checklist.

Bridge # 289, SR 1309
Page 2
September 30, 2013
I have enclosed a pre-construction norificafion for a NW#14, sketches of planned activifies and
location maps relative to the project.
Project information for the 401 Automated Payment Procedure is as follows:
• Work order number: 150459-55120005-17BP.12.R3-3372
• TIP#: NA
• Project Category: $240.00 Fee
If you have any questions or concerns please feel free to contact me at [phone]. Thank
you for yow time and considerarion on this matter.
Respectfully yours,
M.L. Holder, P.E.
Division Engineer
Twelflh Division
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BY: >
," j,���r`' C"ti,,-,.�.
Trish Beam
Division 12 Environmental Supervisor
Enclosures

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Offce Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.3 Dec 10 2008
Pre-Construction Notification PCN Form
A. A licant Information
1. Processing
1 a. Type(s) of approval sought from the
Corps: � Section 404 Permit ❑ Section 10 Permit
1b. Specify Nationwide Permit (NWP) number: 14 or General Permit (GP) number:
1c. Has the N WP or GP number been verified by the Corps? ❑ Yes � No
1 d. Type(s) of approval sought from the DWQ (check all that apply):
� 401 Water Quality Certifcation — Regular ❑ Non-404 Jurisdictional General Permit
❑ 401 Water Quality Certifcation — Express ❑ Riparian BufferAuthorization
1e. Is this notification solely for the record For the record only for DWQ 401 For the record only for Corps Permit:
because written approval is not required? Certifcation:
❑ Yes � No ❑ Yes � No
1f. Is payment into a mitigation bank or in-lieu fee program proposed for mitigation � Yes ❑ No
of impacts? If so, attach the acceptance letter from mitigation bank or in-lieu
fee program.
1g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h ❑ Yes � No
below.
1 h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ❑ Yes � No
2. Project Information
2a. Name of project: SR 1309 (Boone Gap Lane)
2b. County: Alexander
2c. Nearest municipality / town: Taylorsville
2d. Subdivision name:
2e. NCDOT only, T.I.P. or state 17BP.12.R.3
project no:
3. Owner Information
3a. Name(s) on Recorded Deed: NC DOT Right of Way
3b. Deed Book and Page No.
3a Responsible Party (for LLC i f
applicable):
3d. Street address:
3e. City, state, zip:
3f. Telephone no.:
3g. Fax no.:
3h. Email address:
Page 1 of 12
PCN Form — Version 1.3 December 10, 2008 Version

4. Applicant Information (if different from owner)
4a. Applicant is: ❑ Agent ❑ Other, specify:
4b. Name: Mike Holder
4c. Busines s name N.C. Department of Transportation, Division 12
(if applicable):
4d. Street address: 1710 East Marion Street
4e. City, state, zip: Shelby, NC 28151
4f. Telephone no.: 704-480-9020
4g. Fax no.: 704-450-5401
4h. Email address: [e-mail]
5. Agent/Consultant Information (if applicable)
5a. Name: Trish Beam
5b. Business name N.C. Department of Transportation, Division 12
(if applicable):
Sc. Street address: 1710 East Marion Street
5d. City, state, zip: Shelby, NC 28151
Se. Telephone no.: 704-450-9044
5f. Fax no.: 704-480-5401
Sg. Email address: [e-mail]
Page 2 of 12
PCN Form — Version 1.3 December 10, 2008 Version

B. Project Information and Prior Project History
1. Property Identification
1a. Property identification no. (tax PIN or parcel ID): NA
1 b. Site coordinates (in decimal degrees): Latitude: 36.0136 Longitude: - 81.2566
(DD.DDDDDD) (-DD.DDDDDD)
1 c. Property size: <.10 acres
2. Surface Waters
2a. Name of nearest body of water (stream, river, etc.) to Lower Little River
proposed project:
2b. Water Quality Classification of nearest receiving water: C
2c. River basin: Catawba
3. Project Description
3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this
application:
Existing 19-foot timber deck span bridge; Land use is mostly forested and bridge is on paved secondary road.
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:
200 feet
3d. Explain the purpose of the proposed project:
The purpose of the proposed work is to replace the deteriorating bridge for the safety of the travelling public.
3e. Describe the overall project in detail, including the type of equipment to be used:
NCDOT proposes to replace the existing timber deck bridge with a double 43-foot, 8' x 5' reinforced concrete box culvert.
Riprap-faced floodplain benches will be constructed at the culvert inlet/outlet in order to maintain "normal" channel
dimensions. A temporary cofferdam pumping system will be used to divert the stream around the construction site as
needed. Any areas affected by temporary cofferdam system will be restored to pre-project conditions. All Best
Management Practices will be utilized during the course of the project. The Project will be constructed using typical
heavy equipment (trackhoe, backhoe, etc.)
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: Jurisdictional stream determination made by
Division 12 DEO.
4b. If the Corps made the jurisdictional determination, what type
of determination was made? ❑ Preliminary � Final
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.
5. Project History
5a. Have permits or certifications been requested or obtained for � Yes � No ❑ Unknown
this project (including all prior phases) in the past?
5b. If yes, explain in detail according to "help f le" instructions.
Page 3 of 12
PCN Form — Version 1.3 December 10, 2008 Version

6. Future Project Plans
6a. Is this a phased project? ❑ Yes � No
6b. If yes, explain.
Page 4 of 12
PCN Form — Version 1.3 December 10, 2008 Version

1. Impacts Summary
1 a. Which sections were completed below for your project (check all that apply):
❑ Wetlands � Streams - tributaries ❑ Buffers
❑ Open Waters ❑ Pond Construction
Page 5 of 12
PCN Form — Version 1.3 December 10, 2008 Version

2. Wetland Impacts
If there are wetla�d impacts proposed on the site, then complete this question for each wetland area impacted.
2a. 2b. 2c. 2d. 2e. 2f.
Wetland impact Type ofjurisdiction
number— Type of impact Type of wetland Forested (Corps - 404, 10 Area of impact
Permanent (P) or (if known) DWQ — non-404, other) (acres)
Tem orar T
W1 ❑ P❑ T ❑ Yes ❑ Corps
❑ No ❑ DWQ
W2 ❑ P❑ T ❑ Yes ❑ Corps
❑ No ❑ DWQ
W3 ❑ P❑ T ❑ Yes ❑ Corps
❑ Na ❑ DWQ
W4 � P� T ❑ Yes ❑ Corps
❑ No ❑ DWQ
WS ❑ P❑ T ❑ Yes ❑ Corps
❑ No ❑ DWQ
W6 ❑ P � T ❑ Yes ❑ Corps
❑ No ❑ DWQ
2g. Total wetland impacts
2h. Comments:
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a. 3b. 3c. 3d. 3e. 3f. 3g.
Stream impact Type of impact Stream name Perennial Type ofjurisdiction Average Impact
number - (PER) or (Corps - 404, 10 stream length
Permanent (P) or intermittent DWQ — non-404, width (linear
Temporary (T) (INT)? other) (feet) feet)
S1 � P❑ T Culvert Fill Lower Little River � PER � Corps g 43
❑ INT � DWQ
Riprap-faced
floodplain
S2 � P❑ T benches at Lower Little River � PER � Corps g 65
inleUoutlet to ❑ INT � DWQ
maintain channel
dimensions
S3 ❑ P� T Cofferdam bypass Lower Little River � PER � Corps g 30
pumping ❑ INT � DWQ
S4 ❑ P❑ T ❑ PER ❑ Corps
❑ INT ❑ DWQ
SS ❑ P❑ T ❑ PER ❑ Corps
❑ INT ❑ DWQ
S6 ❑ P❑ T ❑ PER ❑ Corps
❑ INT ❑ DWQ
3h. Total stream and tributary impacts "108
3i. Comments " Permanent Impacts
Page 6 of 12
PCN Form — Version 1.3 December 10. 2008 Version

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. 4b. 4c. 4d. 4e.
Open water Name of waterbody
impact number — (if applicable) Type of impact Waterbody type Area of impact (acres)
Permanent (P) or
Tem orar T
01 ❑P❑T
02 ❑P❑T
03 ❑P❑T
04 ❑P❑T
4f. Total open water impacts
4g. Camments:
5. Pond or Lake Construction
If ond or lake construction ro osed, then com lete the chart below.
5a. 5b. 5c. Sd. 5e.
Wetland Impacts (acres) Stream Impacts (feet) Upland
Pond ID Proposed use or purpose (acres)
number of pond
Flooded Filled Excavated Flooded Filled Excavated Flooded
P1
P2
Sf. Total
5g. Comments:
5h. Is a dam high hazard permit required?
❑ Yes ❑ No If yes, permit ID no:
Si. Expected pond surface area (acres):
Sj. 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 yes, then individually list all buffer impacts
below. If an impacts require miti ation, then ou MUST fill out Section D of this form.
6a.
❑ Neuse ❑ Tar-Pamlico ❑ Other:
Project is in which protected basin? ❑ Catawba ❑ Randleman
6b. 6c. 6d. 6e. 6f. 6g.
Buffer impact
number— Reason Buffer Zone 1 impact Zone 2 impact
Permanent (P) or for Stream name mitigation (square feet) (square feet)
Tem ora im act re uired?
B1 ❑P❑T ❑Yes
❑ No
62 ❑ P ❑ T ❑ Yes
❑ No
63 ❑POT ❑Yes
❑ No
6h. Total buffer impacts
6i. Comments:
Page 7 of 12
PCN Form — Version 1.3 December 10, 2008 Version

D. ImpactJustification and Mitigation
1. Avoidance and Minimization
1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
Construction of floodplain benches to maintain stream channel dimension immediately upstream and downstream of the
culvert.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Minimization of impacts by installing appropriate erosion control measures.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for ❑ Yes � No
impacts to Waters of the U.S. or Waters of the State?
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
project? ❑ Payment to in-lieu fee program
❑ Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a. Name of Mitigation Bank:
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: 43 linearfeet
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: Mitigation shall be provided in accordance with the procedures detailed in the USACE letter dated September
1, 2004, from Mr. Ken Jolly to Dr. Gregory J. Thorpe. Attached is a copy of the mitigation request letter submitted to Ms. Beth
Harmon (EEP) on August 19, 2013.
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.
Page 8 of 12
PCN Form — Version 1.3 December 10, 2008 Version

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 ❑ Yes � No
buffer mitigation?
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.
6c. 6d. 6e.
Zone Reason for impact Total impact Multiplier Required mitigation
(square feet) (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 mitigatlon is proposed (e.g., payment to private mitigation bank,
permittee responsible riparian buffer restoration, payment into an approved in-lieu fee fund).
6h. Comments:
Page 9 of 12
PCN Form — Version 1.3 December 10, 2008 Version

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.
Comments: ❑ Yes ❑ No
2. Stormwater Mana ement Plan
2a. What is the overall percent imperviousness of this project? 0%
2b. Does this project require a Stormwater Management Plan? ❑ Yes � No
2c. If this project DOES NOT require a Stormwater Management Plan, explain why: Complies with NCDOT's individual
NPDES permit NCS000250.
2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
❑ 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? NA
❑ Phase II
3b. Which of the following locally-implemented stormwater management programs ❑ NSW
apply (check all that apply): ❑ USMP
❑ Water Supply Watershed
❑ Other:
3c. Has the approved Stormwater Management Plan with proof of approval been ❑ Yes ❑ No
attached?
4. DWQ Stormwater Pro ram Review
❑ Coastal counties
❑ HQW
4a. Which of the following state-implemented stormwater management programs apply � ORW
(check all that apply): ❑ Session Law 2006-246
❑ Other:
4b. Has the approved Stormwater Management Pla� with proof of approval been
attached? ❑ Yes ❑ No
5. DWQ 401 Unit Stormwater Review
5a. Does the Stormwater Management Plan meet the appropriate requirements? ❑ Yes ❑ No
5b. Have all of the 401 Unit submittal requirements been met? ❑ Yes ❑ No
Page 10 of 12
PCN Form — Version 1.3 December 10, 2008 Version

F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
1 a. Does the project i�volve an expenditure of public (federal/state/local) funds or the � Yes ❑ No
use of public (federal/state) land?
1 b. 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)?
1 c. 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
Wetland Rules (15A NCAC 2H .1300), DWQ Surtace Water or Wetland Standards, ❑ Yes � No
or Riparian Buffer Rules (15A NCAC 2B .0200)?
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 RequiremeM)
3a. Will this project (based on past and reasonably anticipated future impacts) result in � Yes � No
additional development, which could impact nearby downstream water quality?
3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the
most recent DWQ policy. If you answered "no," provide a short narrative description.
The project is a minimum criteria project which has low potential for cumulative/indirect impacts and will not result in
additional development which could impact water quality.
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.
No wastewater generated from project.
Page 11 of 12
PCN Form — Version 1.3 December 10, 2008 Version

5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or � Yes � No
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act � Yes � No
impacts?
❑ Raleigh
5c. If yes, ind icate the USFWS Field Office you have contacted.
❑ Asheville
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
NC Natural Heritage Program database. On site survey conducted 3/19/12.
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat? ❑ Yes � No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
No salt marshes, oyster reefs, or seagrass beds located in vicinity of project.
7. Historic or Prehistoric Culturel Resources (Corps Requirement)
7a. Will this project occur in or near an area that the state, federal or tribal
governments have designated as having historic or cultural preservation � yes � No
status (e.g., National Historic Trust designation or properties significant in
North Carolina history and archaeology)?
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?
The project was reviewed/cleared by Cultural Resources 10/26/11(Archaeology) and S/13/12 (Historic Architecture).
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA-designated 100-year floodplain? ❑ Yes � No
8b. If yes, explain how project meets FEMA requirements:
8c. What source(s) did you use to make the floodplain determination? FEMA FIRM panel number:3703980001A
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ApplicanUAgenYs Printed Name Applicant/AgenYs Signature Date
(Agenfs signature is valid only rf an authorization letter from the applicant
is provided.)
Page 12 of 12
PCN Form - Version 1.3 December 10, 2008 Versian

Bridge #289 Replacement
SR 1309, Boone Gap Lane
Alexander County
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Name: BOOMER Location: 036.0138676° N 0812567337° W
Date: 6/5/2013 Caption: Bridge #289 Replacement, SR 1309 (Boone Gap Lane), Lower
Scale: 1 inch equals 1333 feet Little River, qass C, Catawba River Basin

NCDOT
HA7ARDOUS SPILL BAS1N CHECKLIST
Division: 1 � County: Alexanrler Project ID: 17BP12.R3
River Basin: Catawba Bridge No: 289
Route: SR 1309
Water Ouality Criteria:
Stream: Lower Little River
Yes No
Stream Crossing Blue Line On USGS
ORW
WSI
WS II,III OR N, Crossing Within O.Smi of W.S. CriticalArea
Roadway Criteria:
Route Designarion-
Additional Site Information:
Yes No
ArterialUrban `��
Arterial Rura1 '�
Is a Hazardous Spill Basin Required?
Yes No
i ;J
Criteria Based Upon NCDOT `Best Management Practices for the
Protection of Surface Waters" (March, 1997).

�.-
ECOSyst�m
PROGftAM
Ms. Trish Beam
Division 12 Enviromvental Supervis�i
North Cazolina Departsnent of TransportaYion
Post Office Bos 47
Shclby, North Carolina 28151-0047
Dear Ms. Beam:
AUbntSY 20, 2013
Sabject: EEP Mitigation Aeceptance Letter:
Replace Bridge 289 on SR 1304 (Boone� Gap Lane) over Lower Lattle River, Alexander
Coimry; WBS number 17BP12.R3
The purpose of tlris letter is to notiiy you that the Ecosystem Enhancemeut Program (EEP) will provide the
compensatory stream mitigation for flie subjact project. Based on the information supplied by you on August 16,
2013,. the impacte are located in CU 03050101 of the Catawba Itiver basin iu the Centra3 Piedmont (CP) Eca
Region, and are as follows:
Catawba Stream Wetlands Buffer (Sq. FtJ
03Q50101 Non- Coastal ��'��
Cp Cold Cool Warm Riparian Riparian Marsh � Zonel Zone2
Impacts �
.(�Feet/acres) � 0 � 43.0 Q 0 0 0 0
This. impact ahd assoeiated mitigarion need v,�ere undar projected by the NCDO"�' in the 2013 impaot data.
EEP will commit to implement suffieient�eqmpeqeatory stream iv.itigation oredita to offset the 3mpacte associaEed
witl� tFus project as detemEined by the xegulatory agencies using the delivery rimeline listed in Section F3.airi of the
N,C. Depaitment of Environmeut and Natural ResoUrces' Ecosystem �nhaixement Progiam Tn-Lieu Fee Inetrument
dated July 28, 2010. If the above referenced impact amounts are revised, tlien this mifigaflon acceptance letter wi11.
�no longer be valid and a new mitigation aoaeptance letter will be cequired fram EEP.
If you have any questions or need addirional information, please contact Beth Harmon at 919-707-8420.
Sincerely,
� �—• �
Jan��
s,8. S[anfill
EEP Ass�tMaaagement 5upervisor
ca his. Lari Becl<with, USACE —� Asheville Regulatoi�y Pield Office
Mr. A1aa Jolmson, Division of Water Qualiry, Mooresville Office
Ms, Linda Fitzpatricic, VCDOT—PDEA
File: SR L309—Bridge289—Division 12
RP�StO�(,!?�... Fy;l�iQ�ZGGGLJ... PYDt2GtGtL9 OGGY StiL�
�'��
NCDENR
North Carolina Ecosystem Enhancement Program, 1652 Mail Service Center, Raleigh, NC 27699-1652 / 919-707-897fi � http:/Iportal.ncdenr.org/webleep

�PROPOSED FLOOD BENCH WITH COIR FIBER MATTING.
r.;�� ROCK PACE THE EDGE OF THE PROPOSED CHANNEL
EMBEDDING THE ROCK INTO THE STREAMBED.
.`
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CLA55 II RIP RAP TO EDGE OF PLOOD PLAIN BENCH.
SLOPE THE BANKS TO TIE INTO THE EXISTING CONTOURS.
i
PROPOSED RCBC
;; 2@ 8'X5' BY 43' LONG�
70 DEG SKEW
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EXISTING BRIDGE
TO BE REMOVED
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Oe\\� 2�� �---
'� 35'
CLASS II RIP RAP TO FACE THE.�DGE
OF THE PROPOSED CHANNEL, E/vl�€DDING
THE ROCK INTO THE EXISTING
STREAMBED. SLOPE THE BANKS TO
TIE INTO THE EXISTING CONTOURS. '
PUMPING SYASTEM TO BE USED TO DIVERT
THE STREAM AROUND THE CONSTRUCTION SITE
AS NEEDED.
ANY CONTAMINATED WATER WITHW THE CONSTRUCTION
SITE IS TO BE PUMPED WTO A SPECIAL STILLING BASIN:
SiLT PENCE IS TO 8E PLACED AROUND STOCKPILE AREAS AND
PROJECT AS WORK ALLOWS.
UPON COMPLETION OF THE PROJECT ALL SILT FENCE IS
TO BE PLACED AS NEEDED. SEED AND MULCH ALL
DISTURBED AREAS.
EXISTING STREAMBED MATERIAL TO BE EXCAVATED AND STORED
FOR LATER USE ON THE PROJECT.
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PLACE PROPOSED
15" DRAINAGE PIPE
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30'
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CLASS II RIP RAP TO FACE THE EDGE
OF THE PROPOSED CHANNEL,
EMBEDDING THE ROCK INTO THE
EXISTING STREAMBED. SLOPE THE
BANEES TO TIE INTO THE EXISTING
l2th DlV NCDOT
REPLACE BRIDGE WITH
CULVERT, BRIDGE #289
BOONE GAP LN SR 1309
ALEXANDER COUNTY
WBSr l7BP.l2.R.3
6/13

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95.7'
STREAM GRADIENT
7320.1
- 7318.4
7 .7/74.2 = 2.3%
50.7'
30.7' 21.5'
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PROPOSED RCBC
ROAD � 2 @ $�X5'
70 DEG SKEW
PROPOSED CULVERT GRADIENT
1319.6
- 1319.1
O.ra/43=1.2%
�E—$'-�E—$'� NOTE: PLACE SILLS AT INLEf AND OUTLET
� OF THE BARRELS ONLY. BACKFILL BOTH BARRELS
WITH NATNE BED MATERIAL. SUBSIDIZE WITH
CLASS B RIP RAP IF NEEDED.
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SILL DETAIL (INLET AND OUTLET)
LOOKING UPSTREAM
NOT TO SCALE
1327
1326 �
1325' 8
1324
1323
1322'
1321'
0' S' 10' 15' 2�' 25' 30'
CROSS SECTION TAKEN APPROX.186'
DOWNSTREAM FROM THE FACE
OP THE CULVERT.
923'
922'
921'
9]0'
919'
132]
1326 � ���' �
1325
1324
1323
1322'
1321'
0' 5' 10' 15' 20' 25' 30' 35' 40'
CROSS SECTION TAKEN APPROX. 80'
UPSTREAM FROM THE FACE
OF THE CULVERT.
27.5'
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59.3'
STREAM GRADIENT
7312.2
- 1320.6
O.Y62.8 = 0.80%
PROFILE & CRO55 SECTION
(HORIZONTAL)
PROFlLE (VERTICAL)
CROSS SECTION (VERTICAL
84.3'
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CULVERT CONSTRUCTION SEQUENCE STA. 14 + 20 -L-
PHASING
1. Cbse SR 7309 (Boone Gap Ln) To iraffic as shown in ihe Traffic management plans. 7. Complete any necessary inle}/outlet channel improvements.
2. Instoll perimeter erosion con}rol devices as shown on EC-4. Place special siilling basins as directed by ihe Engineer. 8. Remove special sTilling basins.
3. Remove exisTing bridge #070289 over Fork Lower Little River. 9. Complete roodway construcfion.
4. Construct impervious dikes fo resfrain sTream and begin pump oround operations.
5. Install proposed reinforced mncrete box culvert.
b. Remove impervious dikes and reTUrn flow back fo creek <hannel.
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EST 9 SY ___.
AI.EXANDHR_EC_dsn_Cuhert Phasing,k289.dgn e/I9/20I3 32&56 PM TGS
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- EST. 60 TONS CL IPRIP RAP
E5T 580 SF GEOT�%Tll�.
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CUT TO FILL TRAN.
CL 1 RIP RAP
EST.75 TONS
GEOTEXTILE FABRIC
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"-E5T �DE=40 CY
EST. 40 TONS CL II RIP RAP
EST 370 SF GEOTEXTILE
— FLOODPLAIN
BENCH
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P0.01ECi RFFERENCE NO. I SXEEi NO.
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CONTRACTOR IS TO USE PUMP AROUND
OPERP.TIONS AS DIRECTED BY THE ENGINEER
TO MAINTAIN STREAM FLOW.
INSTALI PIPE(5) IN JURISDICTIONAL AREAS ACCORDING TO
NC�OT BEST MANAGEMENT PRAQICES FOR
CONSTRUCTION AND MAINTENANCE ACTIVITIES MANUAL.