HomeMy WebLinkAbout20170723 Ver 1_8450_DEQTrans_2017-05-30 (002)_20170607•
�ocla es
To: NCDEQ
Division of Water Resources — Kristi Lynn Carpenter
943 Washington Square Mall
Washington, NC 27889
Date:
Client:
Project:
Proj. No
We are transmitting the following material for the subject project for:
�X Approval
� Re-approval
� Distribution
� File
5811 Glenwood Avenue
Raleigh, North Carolina 27612
Office: (919) 851-8770
Fax: (919) 859-5918
Website: www.booth-assoc.com
May 30, 2017
Cape Hatteras Electric Cooperative
Bonner Bridge Cable Relocation
Water Quali#y Certification
17-8450-9005/111
VIA: UPS/GROUND
� Herewith
� Under Separate Cover
No. of Drawing No. or
Co ies Identification Sub'ect Remarks
1 Check Check #015747 for $240.00 WQC Fee
401 WQC PCN with supporting documentation & NW14
4 Permit Co/lated copies
4 Stormwater NOI
4 ESCP Details with USGSNM/Soils ma s
2 ESCP1-ESCP5 Stormwater/ESCP Drawinqs 24x36
2 ESCP1-ESCP5 Stormwater/ESCP Drawinqs 11x17
General Remarks:
Enclosed please find a check in the amount of $240.00 with four collated copies of the 401 PCN and supporting
documentation for the Cape Hatteras Electric Cooperative transmission circuit relocation in coniunction with
NCDOT TIP B-2500,
Feel free to contact me at wardme[c�booth-assoc.com or (919) 851-8770 ext. 121 with any questions.
Copies to:
r?� May 2017
Mr. Bill Jordan. P.E.
Mr. Georae Price
Sincerely,
BOOTH & ASSOCIATES, LLG
By.
Liz Ward, E.I,
Section No.
1.0
2.0
3.0
4.0
17-8450-9005/111
� June 2017
CAPE HATTERAS ELECTRIC COOPERATIVE
BONNER BRIDGE TRANSMISSION CIRCUIT RELOCATION
NORTH CAROLINA
DARE COUNTY
401 & BUFFER PERMITTING PCN SUBMITTAL
TABLE OF CONTENTS
Description
PCN Application & Supporting Documentation
Stormwater NOI
Erosion & Sedimentation Control Plan Details
Stormwater Management and Erosion Control Drawings
(Provided Separately)
Y Drawing No. 178450 ESCP1-ESCPS
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PCN APPL,�ICATIC)N ,& SUPP�l1�TIN+G ��CUI'V�NTAT�[�N
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Form Version 1.4 January 2009
Pre-Construction Notification (PCN) Form
A. Applicant Information
1. Processing
1 a. Type(s) of approval sought from the Corps: ❑X Section 404 Permit ❑ Section 10 Permit
1b. Specify Nationwide Permit (NWP) number: 14 or General Permit (GP) number:
1 c. Has the NWP or GP number been verified by the Corps? X❑ Yes ❑ No
1 d. Type(s) of approval sought from the DWQ (check all that apply):
❑X 401 Water Quality Certification — Regular ❑ Non-404 Jurisdictional General Permit
❑ 401 Water Quality Certification — Express ❑ Riparian Buffer Authorization
1 e. Is this notification solely for the record For the record only for DWQ For the record only for Corps Permit:
because written approval is not required? 401 Certification:
❑ Yes OX No ❑ Yes ❑X 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 � Yes ❑X No
or in-lieu fee program.
1 g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h 0 Yes ❑ No
below.
1 h. Is the project located within a NC DCM Area of Environmental Concern (AEC}? ❑X Yes ❑ No
2. Project Information
2a. Name of project: Bonner Bridge Transmission Cable Relocation
2b. County: Dare
2c. Nearest municipality / town; Nags Head
2d. Subdivision name: NA
2e. NCDOT only, T.I.P. or state project no: In conjunction with NCDOT TIP Project B-2500 (Phase I)
3. Owner Information
3a. Name(s) on Recorded Deed: US Government -DOI Cape Hatteras Natl Seashore & Pea Island Natl Wildlife Refuge
3b. Deed Book and Page No. NPS: Deed Book 79, Page 548 FWS: Deed Book 19, Page 451
3c. Responsible Party (for LLC if
applicable):
3d. Street address: NPS: 1401 National Park Dr., Manteo, NC 27954 c/o Steve Thompson
3e. City, state, zip: FWS: P.O. Box 1969, Manteo, NC 27954 c/o Art Beyer
3f. Telephone no.: NPS: 252-475-9036 (Steve Thompson) FWS: 252-473-1132 x235 (Art Beyer)
3g. Fax no.: NPS: 252-473-2595 FWS: 252-473-1668
3h. Email address: steve d_thompson@nps.gov Arthur beyer@fws.gov
Page 1 of 10
PCN Form — Version 1.4 January 2009
4. Applicant Information (if different from owner)
4a. Applicant is: ❑X Agent ❑X Other, specify: Cape Hatteras Electric Cooperative
4b. Name: George Price
4c. Business name Cape Hatteras Electric Cooperative (CHEC) - Right-of-Way Grant Owner
(if applicable):
4d. Street address: 47109 Light Plant Road
4e. City, state, zip: Buxton, NC 27920
4f. Telephone no.: (252) 995-5616 x236
4g. Fax no.: (252) 995-4088
4h. Email address: georgep@chec.coop
5. Agent/Consultant Information (if applicable)
5a. Name: Liz Ward
5b. Business name Booth & Associates, LLC
(if applicable):
5c. Street address: 5811 Glenwood Avenue
5d. City, state, zip: Raleigh, NC 27612
5e. Telephone no.: 919-851-8770 x121
5f. Fax no.; 919-859-5918
5g. Email address: wardme@booth-a5soc.com
Page 2 of 10
B. Project Information and Prior Project History
1. Property Identification
1a. Property identification no. (tax PIN or parcel ID): see attached
1 b. Site coordinates (in decimal degrees): Latitude: Longitude:
1 c. Property size: acres
2. Surface Waters
2a. Name of nearest body of water to proposed project: Oregon Inlet Motts Creek Roanoke Sound
2b. Water Quality Classification of nearest receiving water: SA;HQW SC SA;HQW
2c. River basin: Pasquotank
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:
see attached Land Use: Parks/Bare Land - Outdoor Cultural, Public Assembly, and Recreation
Site conditions at FWS are disturbed for ongoing NC DOT construction. Shoreline erosion and nourishment ongoing.
Site conditions at NPS are disturbed for ongoing NC DOT construction. Wetlands are maintained by mowing.
3b. List the total estimated acreage of all existing wetlands on the property: 1,363
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: 0
3d. Explain the purpose of the proposed project:
To provide uninterrupted electrical service to CHEC customers during and after the construction of the NC DOT TIP B-2500 Bonner Bridge project.
3e. Describe the overall project in detail, including the type of equipment to be used:
See attached Special Use Permit Applications and Drawings submitted to NPS and FWS
4. Jurisdictional Determinations
4a. Have jurisdictional wetland or stream determinations by the ❑X Yes ❑ No ❑ Unknown
Corps or State been requested or obtained for this property /
pro'ect includinq all prior phases) in the ast? Comments: see attached
4b. If the Corps made the jurisdictional determination, what type
of determination was made? ❑ Preliminary ❑X Final
4c. If yes, who delineated the jurisdictional areas? Agency/Consultant Company: Arcadis & czR
Name (if known): Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
see attached
5. Project History
5a. Have permits or certificatians 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 file" instructions.
see attached for list of TIP B-2500 permit approvals
6. Future Project Plans
6a. Is this a phased project? �X Yes ❑ No
6b. If yes, explain.
Phase 1= NPS: construction access, maintenance to existing substation, bore under road and wetlands to substation, duct bank installation to vault
Phase 2= FWS: installation of new riser pole structure, removal of existing poles, cable pulling from vault to end of Bonner Bridge
Page 3 of 10
PCN Form — Version 1.4 January 2009
C. Proposed Impacts Inventory
1. Impacts Summary
1 a. Which sections were eompleted below for your project (check all that apply):
❑X 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 impact Type of wetland Forested Type of jurisdiction Area of
number Corps (404,10) or impact
Permanent (P) or DWQ (401, other) (acres)
Tem ora T
W1 P Fill Man-dominated No Corps 0.15
W2 - Choose one Choose one Yes/No -
W3 - Choose one Choose one YeslNo -
W4 - Choose one Choose one Yes/No -
W5 - Choose one Choose one Yes/No -
Wg - Choose one Choose one Yes/No -
2g. Total Wetland Impacts: 0.15
2h. Comments:
W1 occurs near existing substation on NPS land in area of existing easement to expand substation fence and install construction access which will be
converted to future gravel drive access up to and surrounding southeast corner of substation for adequate turn radius. Area will require 0.027 acres of
temporary hand clearing in Maritime Shrub Thicket.
See attached FWS drawing showing temporary hand clearing in 0.06 acres af Maritime Shrub/Grassland.
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. 3e. 3d. 3e. 3f. 3g.
Stream impact Type of impact Stream name Perennial (PER) or Type of Average Impact
number intermittent (INT)? jurisdiction stream length
Permanent (P) or width (linear
Temporary (T) (feet) feet)
S1 - Choose one - -
S2 - Choose one - -
S3 - Choose one - -
S4 - Choose one - -
S5 - Choose one - -
S6 - Choose one - -
3h. Total stream and tributary impacts
3i. Comments:
NA
Page 4 of 10
PCN Form — Version 1.4 January 2009
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 individuall list all o en water im acts below.
4a. 4b. 4c. 4d. 4e.
Open water Name of waterbody
impact number (if applicable) Type of impact Waterbody Area af impact (acres)
Permanent (P) or type
Tem ora T
01 - Choose one Choose
02 - Choose one Choose
03 - Choose one Choose
04 - Choose one Choose
4f. Total open water impacts
4g. Comm2ntS: Cable will be ulled throu h conduit installed on the brid e structure a
P g g ( pproved by US Coast Guard) without additional impacts.
5. Pond or Lake Construction
If ond or lake construction ro osed, then com lete the chart below.
5a. 5b. 5c. 5d. 5e.
Pond ID number Proposed use or Wetland Impacts (acres) Stream Impacts (feet) Upland
purpose of pond (acres)
Flooded Filled Excavated Flooded Filled Excavated
P1 Choose one
P2 Choose one
5f. Total:
5g. Comments: NA
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 yes, then individually list all buffer impacts
below. If any impacts require miti ation, then ou MUST fill out Section D of this form.
6a. Project is in which protected basin? ❑ Neuse � Tar-Pamlico � Catawba � Randleman ❑ Other:
6b. 6c. 6d. 6e. 6f, 6g.
Buffer Impact Reason for impact Stream name Buffer Zone 1 Zone 2
number — mitigation impact impact
Permanent (P) or required? (square (square
Tem ora T feet) feet
B1 - Yes/No
B2 - Yes/No
63 - Yes/No
B4 - Yes/No
B5 - Yes/No
B6 - Yes/No
6h. Total Buffer Impacts:
6i. Comments:
NA
Page 5 of 10
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
see attached project narrative
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
see attached project narrative
2. Com ensato Mitiqation for Im acts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for ❑X 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 ❑X Corps
❑ Mitigation bank
2c. If yes, which mitigation option will be used for this
project? ❑ Payment to in-lieu fee program
❑x Permittee Responsible Mitigation
3. Complete if Usinq a Mitiqation Bank
3a. Name of Mitigation Bank:
Type: Choose one Quantity_
3b. Credits Purchased (attach receipt and letter) Type: Choose one Quantity:
Type: Choose one Quantity:
3c. Comments:
4. Com lete if Making a Pa ment to In-lieu Fee Program
4a. Approval letter from in-lieu fee program is attached. ❑ Yes
4b. Stream mitigation requested: linear feet
4c. If using stream mitigation, stream temperature: Choose one
4d. Buffer mitigation requested (DWQ only): square feet
4e. Riparian wetland mitigation requested: acres
4f. Non-riparian wetland mitigation requested: acres
4g. Coastal (tidal) wetland mitigation requested: acres
4h. Comments:
5. Complete if Using a Permittee Responsible Mitigation Plan
5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
See attached letter of verification for the mitigation of wetland impacts from CHEC construction to be performed by NCDOT at the Bodie Island
Lighthouse Pond SNHA (Site Id #1134) as described in the Final Wetland Mitigation Plan NC 12 Replacement of Herbert C. Bonner Bridge (Bridge No.
11) overOregon Inlet.
Page 6 of 10
PCN Form — Version 1.4 January 2009
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 ❑X 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.
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 mitigation is proposed (e.g., payment to private mitigation bank,
permittee responsible riparian buffer restoration, payment into an approved in-lieu fee fund).
6h. Comments:
Page 7 of 10
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 ❑X No
within one of the NC Ri arian Buffer Protection Rules?
1 b. If yes, then is a diffuse flow plan included? If no, explain why.
� Yes � No
2. Stormwater Management Plan
2a. What is the overall percent imperviousness of this project? 18.5 %
2b. Does this prolect require a Stormwater Management Plan? ❑ Yes ❑x No
2c. If this project DOES NOT require a Stormwater Management Plan, explain why:
Please contact Samir Dumpor (252-946-3659 or Samir.dumpor@ncdenr.gov) in the Washington Regional Office for questions regarding compliance.
Coastal State SW Permitting Program has jurisdiction. �th less than 24% BUA we will submit the NOI for the SWG 04 - Linear Utility Projects permit.
2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
2e. Who will be responsible for the review of the Stormwater Management Plan?
3. Certified Local Government Stormwater Review
3a. In which local governmenYs jurisdiction is this project? �wG Regionai Office
❑ 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 X❑ No
attached?
4. DWQ Stormwater Proqram Review
OCoastal counties
❑HQW
4a. Which of the following state-implemented stormwater management programs apply �ORW
(check all that apply): ❑Session Law 2006-246
❑X Oth2�: Linear Utility Line
4b. Has the approved Stormwater Management Plan with proof of approval been � Yes ❑X No
attached?
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 8 of 10
PCN Form — Version 1.4 January 2009
F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
1 a. Does the project involve an expenditure of public (federal/state/local) funds or the 0 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 ❑X 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
lettef.) Court ROD concluded the EIS covered the replacement of the Bonner Bridge which ❑ Yes ❑ NO
COmm2nts: included areas of utility relocation. CE applications submitted to NPS and FWS.
2. Violations (DWQ Requirement)
2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated
Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards, ❑Yes ❑X No
or Riparian Buffer Rules (15A NCAC 2B .0200)?
2b. Is this an after-the-fact permit application? ❑ Yes ❑X 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 ❑X No
additional development, which could impact nearby downstream water quality?
3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the
most recent DWQ policy. If you answered "no," provide a short narrative description.
4. Sewage Disposal (DWQ Requirement)
4a. Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from
the proposed project, or available capacity of the subject facility.
NA
Page 9 of 10
PCN Form — Version 1.4 January 2009
5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or 0 Yes ❑ No
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act � Yes ❑ No
impacts?
5c. If yes, indicate the USFWS Field Office you have contacted. Raleigh
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
FWS Agency Consultation & website: http://ecos.iws.gov/ipac, NCDOT TIP B-2500 FEIS/ROD, Letter received April 2017 indicating requirements for
section 7(a)(2) of the ESA have been satisfied for this project.
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat? ❑X Yes ❑ No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
Mid-Atlantic Fishery Management Council & National Marine Fisheries Service Mid-Atlantic Region Habitat Conservation Division GIS Shapefile
EFH & HAPC: Summer Flounder EFH: Scup, Black Sea Bass
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
7a. Will this project occur in or near an area that the state, federal or tribal
governments have designated as having historic or cultural preservation � Yes ❑ No
status (e.g., National Historic Trust designation or properties significant in
North Carolina history and archaeology)?
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?
Existing NC DOT TIP B-2500 Phase I Programmatic Agreement signed by FHWA, SHPO, ACHP and NCDOT will be followed. http://gis.ncdcr.gov
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA-designated 100-year floodplain? ❑X Yes ❑ No
8b. If yes, explain how project meets FEMA requirements:
Zone AE- The Dare flood ordinance does not address electrical substations above ground or below, the regulations do not apply to public utilities.
Existing substation, boring cable underground and encasing cable in underground concrete duct bank, elevated pole structures.
8c. What source(s) did you use to make the floodplain determination?
http://fris.nc.gov/FRIS/ DFIRM NC 3730072600J & DFIRM NC_3730073500 J
Contacted Dare County Planning Director
Liz Ward °��`w`��`y�
Liz Ward �����d.4.�,.• — � W
-^��^� ----�^ �� 05/05/2017
�' 70t7 O6.C! 1 t..ld4-0f07
Applicant/Agent's Printed Name Applicant/Agent's Signature Date
(AgenYs signature is valid only if an authorization
letter from the applicant is provided.)
Page 10 of 10
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AGENT AUTHORIZATION
Property Address: Cape Hatteras National Seashore at Oregon Inlet Rd., Nags Head, NC 27959
Parcel PIN: Dare County: 071700685112
Please print:
Property Owner: US Government DOI - Cape Hatteras National Seashore (National Park Service)
Property Owner: George Price - Cape Hatteras Electric Cooperative (Project & Easement Owner)
The undersigned, registered property owners of the above noted property, do hereby authorize
Bvoth & Associates. LLC — 5811 Glenwood Av,e., Ralei�h, NC 27612 {A�ent f Cansultin� Firm1
to act on my behalf and take all actions necessary for the processing, issuance and acceptance of this
permit or certification and any and all standard and special conditions attached.
Property Owner's Address (if different than property above):
C/O Steve Thompson - Bonner Bridge Permit Monitor 1401 National Park Drive, Manteo, NC 27954
C/O George Price - Manager of Engineering & Operations, 47109 Light Plant Road, Buxton, NC 27920
Te�ephOne: 252-216-6455 (Steve T.) & 252-995-5616 x236 (George P.)
We hereby certify the above information submitted in this application is true and accurate to the best of
our knowledge.
Authorized Signature George Price
Authorized Signature _._ _
15-6803-9005
OO March 2017
=_=*���= ��� Date: 4/4/2017
Date:
Booth & Associates, LLC
Consulting Engineers
5811 Glenwood Avenue
Raleigh, North Carolina 27612
Firm License No.: F-0221
US A,rmr Corps
a! Enpfnaps.
� �`°'�'' °�''a AGENT AUTHORIZATION
Pro �erty Address• Pea Island National Wildlife Refuge at Lifeboat Station Road, Rodanthe, NC 27968
Parcel PIN: �are County: 074200340875
Pie II e print:
F'raperty �wner': US Govemment DOI - Pea lsland National Wildl'de Refuge (Fish and Wlldlife Service)
Property Owner: George Price - Cape Hatteras Electric Cooperative (Project & Easement Owner)
The undersigned, registered properly owners of the above noted property, do hereby autho�ize
Boath & Assr�ciates, LLC — 5�11 G�enwoad Ave„ Raiel�h, hIC 27612 [A�ent / Consultin� Firm„),
, .
to act on my behaff and take all actions necessary for the processing, issuance and acceptance of this
per �mit or certification and any and all standard and special conditions attached. '
Owner's Address (if different than property above):
Art Beyer Assistant Refuge Manager P.O. Box 1969, Manteo, fVC 27954
Telephone• 252�73-1132 x235
We�hereby certify the above information submitted in this application is true and accurate to the best of
our know[edge.
Authorized Signature Date: � /�. l �� �
Authorized Signature George Price '�= =�" -�— ---- pate: 4/4/ 017
Booth & Assoceates, LLC
Consalting Engineers
5811 Glenwood Avenue
Raleigh, North Carolina 27612
Firm License No.: F-0221
� f'iAarch 20Z7
PCN 61: Propertv Identification
Propertv Owners:
US GOVERNMENT - DEPARTMENT OF THE INTERIOR
Cape Hatteras National Seashore: National Park Service (NPS)
Pea Island National Wildlife Refuge: Fish & Wildlife Service (FWS)
Responsible Party for Project: Cape Hatteras Electric Cooperative (CHEC)
Cape Hatteras ryational Sea�hc�re
1401 National Park Drive
Manteo, NC 27954
Parcel # 025076998
PIN # 071700685112
Deed Book 79, Page 548
Site coordinates: 35.799376, -75.546724
Property Size: 4,623 acres
Phase 1= 1 acre from existing CHEC substation to new Bonner Bridge
ATTN: Steve Thompson - Bonner Bridge Permit Monitor
Point of Contact B-2500 / Project Leader B-2500 B
Direct: (252) 216-6455
Fax: (252) 473-2595
Email: steve d thompsnn@nps.�c�V
PFA !SI �Nn NnTinruni N/�LDILIFE REFl1CF
P.O.BOX 1969, MANTEO, NC 27954
Parcel # 028727990
PIN # 074200340875
Deed Book 19, Page 451
Site coordinates: 35.764588, -75.520563
Property Size: 4,304 acres
Phase 2= 2 acres from existing CHEC transmission line pole structures to end of new Bonner Bridge
ATTN: Art Beyer—Assistant Refuge Manager
Direct: (252) 473-1132 x235
Fax: (252) 473-1668
Email: Arthur bever�a fws.�o�
PCN B.3a - Existing Site Conditions
This project lies within the Tidewater Region of the Coastal Plain Physiographic Province in the
Albemarle Sub-basin of the Pasquotank River Basin (Hydrologic Unit Code 03010205).
Terrestrial upland communities in the project corridor are represented by three major community
types: Man- Dominated (maintained/disturbed), Maritime Shrub Thicket, and Maritime Shrub
Grassland. The delineated wetland community types located within the corridor include: Man-
Dominated, Maritime Grassland, Maritime Shrub Thicket, and Maritime Shrub/Grassland.
Neither streams nor open water are affected by construction within the corridor.
Land use: Parks/Bare Land - Outdoor Cultural, Public Assembly, and Recreation
Site conditions at FWS are disturbed for ongoing NCDOT construction. Shoreline erosion and
nourishment are ongoing. Site conditions at NPS are disturbed for ongoing NCDOT
construction. Wetlands are maintained by mowing.
PCN B.3d - Applicant's Stated Purpose
Construction of the new Bonner Bridge for NCDOT TIP B-2500 requires relocation of existing
Cape Hatteras Electric Cooperative (CHEC) transmission cable. A new transmission circuit is
required to be installed to provide uninterrupted electrical service to CHEC customers during and
after the construction of the NCDOT TIP B-2500 Bonner Bridge project.
PCN B.3 - Project Description
The Corps issued the original DA permit SAW-2012-00715 to NC DOT on May 4, 2012 and
SAW-1993-03077 issued to NC DOT on August 20, 2013, with modifications approved October
21, 2015 for impacts associated with TIP B-2500, replacement of the Bonner Bridge over
Oregon Inlet, in Dare County, North Carolina. Impacts assessed for the project in the 2008 Final
Environmental Impact Statement and 2010 Environmental Assessment included areas of study
where relocation of utilities will be required by this project. Cape Hatteras Electric Cooperative
has been working in coordination with NCDOT, Cape Hatteras National Seashore, Pea Island
National Wildlife Refuge, and associated permitting authorities to have construction on the
electric transmission cable ready to be attached to the new bridge structures in accordance with
the NCDOT project timeline. Construction on TIP B-2500 will continue for the next several
years; therefore, limited access for shared equipment laydown areas and construction access
require sequencing of permit approvals and bid schedules. Booth & Associates, LLC began
interagency coordination meetings between the NPS, FWS, NCDOT, CHEC, for the
collaborative design of the Cape Hatteras Electric Cooperative utility relocation in August 2016.
A timeline was established for coordination of using NCDOT right-of-way and having the cables
installed and ready to pull onto the new Bonner Bridge by December 2019.
PCN 64: Previous Proiect Area Jurisdictional Determinations
Previous wetland delineations:
• Performed by consultants Arcadis in 2004 as well as CZR in 2004, 2006, and 2012.
• JD's were confirmed by USACE Wilmington District on January 27, 2004, April 26, 2006
and May 2, 2006 by Mr. William J. Biddlecome.
• Phase I delineation was updated in January 2012 and field-verified in March 2012 by
USACE and the NC DCM.
• An approved JD was issued by USACE on May 4, 2012 (SAW-2012-00715).
• Steven Lane of DCM performed field review in March 2012 and concurred with CAMA
wetland mapping in May 30, 2012 email.
PCN B5: Previous TIP B-25t?4 Permit Appro�als
ACOE:
SAW-2012-00715 issued to NC DOT on May 4, 2012
SAW-1993-03077 issued to NC DOT on August 14, 2013
Modified October 21, 2015
401 Water Qualitv Certi�cation:
Certification No. 003939 issued to NC DOT on September 7, 2012
Modified October 15, 2015
NCDWR Project No.20120629 v.2
CAMA:
Permit No. 106-12 issued to NC DOT on September 19, 2012
Modified October 29, 2015
Coast Guard•
Bridge Permit 1-15-5 issued to NC DOT on July 31, 2015
NEPA FEI5IEAIROD :
1993 Draft Environmental Impact Statement
2005 Supplemental Draft Environmental Impact Statement
2007 Supplement to the 2005 Supplemental Draft Environmental Impact Statement
2008 Final Environmental Impact Statement
2010 Environmental Assessment
Record of Decision - December 20, 2010
PCN D.la - Avoidance and Minimization for Project Design
Any clearing will be done by hand and no mechanized clearing or grubbing is required. Timber
matting will be utilized in sensitive areas to reduce impacts to existing vegetation and reduce
impaction from construction vehicles. Existing silt fence along the NCDOT right of way will be
utilized to avoid sediment and runoff impacts to surrounding aquatic vegetation. Design
alternatives for the CHEC cable relocation reduced the total combined limits of disturbance from
3.95 acres to 1.35 acres.
Uesi�n alternatives tn avo'rd andfpr minimize imnaets vn N1'S nropertv:
The existing CHEC transmission cable was bored under NC12 from the existing substation and
then encased in a concrete duct bank on the eastern side of the highway. Relocation of this
existing cable circuit was considered more impactful to the NPS Cape Hatteras National
Seashore than the installation of a new transmission circuit. The new Bonner Bridge will be
located farther west than the existing bridge which also requires moving the transmission circuit
farther west to avoid issues with cable bend radius. A new transmission circuit offers
redundancy and will allow uninterrupted power service to CHEC customers. The potential
impact to existing vegetation and aquatic environment is reduced by abandoning the existing
transmission duct bank in place as opposed to digging and breaking up the concrete duct bank for
removal after completion of the new circuit installation.
The installation of the new transmission circuit on the western side of NC12 was originally
planned to be open cut trenched the entire length from the existing substation to a splice vault
near the new bridge structure. Upon further review and coordination meetings, the circuit will be
bored under Oregon Inlet Road from the substation to avoid impacts to the man-dominated and
shrub-thicket delineated wetland areas, as well as disrupting access to the fishing center parking
lot. The existing subsurface utilities will be avoided by the bore as well. The remaining
transmission circuit utility easement was relocated southeast out of maintained wetland areas and
away from the fishing center dump station's existing septic drainage field. This shared easement
area reduces additional disturbance and mitigation. The transmission circuit must be encased in
a concrete duct bank for cable protection so a high early concrete mix will be utilized to reduce
curing time and potential runoff impacts.
The existing substation does not have a driveway access for CHEC and Dominion Power to
utilize for routine maintenance or during emergency operations. This project will require a
temporary construction access which is proposed to become a permanent gravel drive. A
designated gravel drive will avoid continued disturbance to existing maintained wetland
vegetation from large vehicles accessing the substation. The permanent gravel drive was
reduced in width and will be located in an area of existing vegetation disturbance off Oregon
Inlet Road. Permanent access off Oregon Inlet Road as opposed to NC 12 is safer for utility
employees, pedestrians, and drivers using the highway. Access from the fishing center parking
lot utilizes existing paved surfaces and provides a large turning radius, thereby reducing the size
of the proposed gravel drive.
Improvements to existing substation structures will be conducted at the same time to avoid future
impacts and increase equipment reliability. These improvements and connection of the new
cable circuit requires expansion of the substation fence. A temporary chain link safety fence
which does not require digging posts was chosen to further reduce impacts to existing vegetation.
The location of this fence was modifed to completely avoid a small section of CAMA wetlands.
Overall, these design alternatives reduced the total limits of disturbance by 0.91 acres and
eliminated 0.55 acres of wetland impacts.
Desi�n altern�tivcs to avaid and/Qr minimize imnacts nn �"WS Pronertv:
In anticipation for the new transmission circuit off the new Bonner Bridge a temporary riser
structure was installed on the eastern side of NC12 in 2015 on Pea Island National Wildlife
Refuge. During coordination with NCDOT, it was determined to keep the transmission circuit
installed all the way to the end of the new bridge deck to avoid future relocations as storm
impacts and continued erosion impede stability of the original splice location. This design
reduces the amount oftemporary easement required on FWS property and removes the necessity
for a concrete duct bank installation and associated wetland impacts. The cable circuit will be
installed under the highway and attached to a new riser structure within a smaller proposed
utility easement and existing CHEC easement will be abandoned and returned to the refuge.
Existing pole structures will be removed by hand with bases to be left in place to avoid impacts
to existing vegetation and wildlife habitat. Overall, these design alternatives reduced the total
limits of disturbance by 1.69 acres and eliminated 0.67 acres of wetland impacts.
PCN D.1 b- Avoidance and Minimization through Construction Techniques
Construction techniques to avoid and/or minimize impacts to the aquatic environment:
• Utilization of NCDEQ Best Management Practices (BMPs) and Coastal Stormwater Design
Standards for the protection of surface waters;
• Use of Design Standards in Sensitive Watersheds throughout the project;
• All potential runoff will be diffused and designed for non-erosive velocities before entering
stream and wetland areas to the maximum extent practicable;
• Silt fence outlets will be irnplemented to reduce erosion and sedimentation issues;
• Potential groundwater intrusion into trenches will be filtered via sediment bags and discharged
into grassed ditches or onto grassed uplands.
PCN D.Sa - Compensatory Mitigation
NCDOT agreed to cover mitigation of CHEC transmission cable relocation wetland impacts.
The previously approved B-2500 wetland restoration site owned by the NPS will remain the
mitigation plan and will cover the additional wetland impacts from the CHEC cable relocation.
Please see attached letter of verification from NCDOT.
For the previously authorized DA permit, mitigation for the project shall be provided in
accordance with the document titled "Final Wetland Mitigation Plan NC 12 Replacement of
Herbert C. Bonner Bridge (Bridge No. 11) over Oregon Inlet" prepared by the United States
National Park Service and the North Carolina Department of Transportation dated January 30,
2013. Wetland mitigation was decided at a 5:1 mitigation to impact ratio.
PCN F.5 — Endangered Species and Designated Critical Habitat
Permittee expects to abide by the terms and conditions outlined for the TIP B-2500 project in the
July 10, 2008 Fish and Wildlife Service Biological and Conference Opinions. Permitee will
work in close coordination with established regulatory recommendations and implement
additional commitments specified in the Special Use Permits by the Department of the Interior.
March 9, 2017
NR Points
� NR Individual Listing
• NR Listing, Gone
�t NRHD Center Point
NR Boundaries
�.
CHEC Cable Relocation Project
�A ��
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��or inl�r
1'3�
1:36,112
d) 0.3 0.6 1.2 mi
r— �� �—� � i ' �� ` °�
0 0.5 1 2 km
Sources� Esn, HERE, DeLorme. USGS, Intermap, INCREMENT P, NRCan,
Esri Japan, MEiI, Esri China (Hong Kong), Esri Korea, Esri (Thailand),
Mapmylndia, NGCC. OO OpenStieelMap co�tribulas, and Ihe GIS User
Communiry
5oolh & Associales
�n��
IPaC
Reeulatorv review / Endangered species / Species determinations
Species determinations
For listed species? not covered by determination keys, an impact analysis should be performed to reach a
conclusion about how this project will impact the species. These conclusions will result in determinations
for each species, which will be used in consultation with the U.S. Fish and Wildlife Service.
Birds
Piping Plover None
Charadrius melodus
Red Knot None
Calidris canutus rufa
Red-cockaded Woodpecker None
Picoides borealis
Roseate Tern None
Sterna dougallii dougallii
Fishes
Atlantic Sturgeon
Acipenser oxyrinchus oxyrinchus
Shortnose Sturgeon
Acipenser brevirostrum
Flowering Plants
Seabeach Amaranth
Amaranthus pumilus
Mammals
Northern Long-eared Bat
Myotis septentrionalis
Red Wolf
Canis rufus
West Indian Manatee
Trichechus manatus
Reptiles
American Alligator
Alligator mississippiensis
Hawksbill Sea Turtle
Eretmochelys imbricata
Kemp's Ridley Sea Turtle
Lepidochelys kempii
None
None
None
None
None
None
None
None
None
U.S. Fish & Wildlife Service
Leatherback Sea Turtle
Dermochelys coria�ea
Loggerhead Sea Turtle
Care[ta carett�
Critical habitats
Piping Plover
Charadrius melodus
None
None
None
1. Species listed under the Endangered Species Act are threatened or endangered; IPaC also shows species
that are candidates, or proposed, far listing. See the listing status paEe for more information.
U.S. ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT
Action Id. SAW-2017-01082 County: Dare U.S.G.S. Quad: NC-OREGON [NLET
GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION
Permittee: Cape Hatteras Eiectrir Caoperati�e fCHEC}
Geor2e Price
Address: 47109 Lieht Plant Road
Buxton, NC, 27920
Telephone Number: 252-995-5616 x 236
Size (acres) 15 Nearest Town Nags Head
Nearest Waterway Atlantic Ocean River Basin Albemarle-Chowan
USGS HUC 03010205 Coordinates Latitude: 35.7994118982846
Longitude: -75.5466865573325
Location description: Proieet is located on the north en_d of the Ort�nn Inlet �`ishine Center between the uark'sn� 1vt and the
Cape Hatteras Eiectric Coop,erati�e Sub-Station.
Description of projects area and activity: Construct a nermanent access coad fram the aarkio� lot of t6e Oreeon Inlet Fishin�
Center to Cane Hattcras Electric Coonerati�e Sub-Statian imnattin� 6�34 squar� feet f0 l�+ acresl uf wetlands Road is
s� rorimatel t b' wide an[125 lon and then widens to 3ii' wide b a roximatel 140 feef I n around the subsis�tian
uerimeter on two sides.
Applicable Law: � Section 404 (Clean Water Act, 33 USC 1344)
❑ Sections 10 (Rivers and Harbors Act, 33 USC 403)
Authorization: Regional General Permit Number or Nationwide Permit Number: NW # 14
SEE ATTACHED RGP or 1VWP GENERAL, REGIONAL AND SPECIAL CONDITIONS
Your work is authorized by the above referenced permit provided it is accomplished in strict accordance with the attached
conditions and your submitted application and attached information dated Mav 5, 2017. Any violation of the attached
conditions or deviation from your submitted plans may subject the permittee to a stop work order, a restoration order, a Class
I administrative penalty, and/or appropriate legal action.
This verification will remain valid until the expiration date identified below unless the nationwide authorization is modified,
suspended or revoked. If, prior to the expiration date identified below, the nationwide permit authorization is reissued and/or
modified, this verification will remain valid until the expiration date identified below, provided it complies with all requirements of
the modified nationwide permit. If the nationwide permit authorization expires or is suspended, revoked, or is modified, such that the
activity would no longer comply with the terms and conditions of the nationwide permit, activities which have commenced (i.e., are
under construction) or are under contract to commence in reliance upon the nationwide permit, will remain authorized provided the
activity is completed within twelve months of the date of the nationwide permit's expiration, modification or revocation, unless
discretionary authority has been exercised on a case-by-case basis to modify, suspend or revoke the authorization.
Activities subject to Section 404 (as indicated above) may also require an individual Section 40l Water Quality Certification. You
should contact the NC Division of Water Resources (telephone 919-807-6300) to determine Section 401 requirements.
For activities occurring within the twenty coastal counties subject to regulation under the Coastal Area Management Act (CAMA),
prior to beginning work you must contact the N.C. Division of Coastal Management in Elizabeth City, NC, at (252) 264-3901.
This Department of the Army verification does not relieve the permittee of the responsibility to obtain any other required Federal,
State or local approvals/permits.
If there are any questions regarding this verification, any of the conditions of the Permit, or the Corps of Engineers regulatory
program, please contact William Biddlecame ai (9i01251-�t558 or Witliam.J.Biddlecome(a�usace.armv.tnil.
BIDDLECOME.WILLIA � � � N.,�a,�z,»bsa !
,,.._� o-�s �.�mM� a-� a-�
Corps Regulatory Official:MJJR.1�28726504 °��°°=�°�F�°^��^w^�����°��°s°° Date: Mav 22. 2017
Expiration Date of Verification: March 18, 2022 �
SAW-2017-01082
Determination of Jurisdiction:
A. � There are wetlands on the above described project area that may be subject to Section 404 of the Clean Water Act (CWA) (33
USC § 1344) and/or Section l0 of the Rivers and Harbors Act (RHA) (33 USC § 403). This preliminary determination is not an
appealable action under the Regulatory Program Administrative Appeal Process (Reference 33 CFR Part 331). However, you
may request an approved JD, which is an appealable action, by contacting the Corps district for further instruction. Please note, if
work is authorized by either a general or nationwide permit, and you wish to request an appeal of an approved JD, the appeal must
be received by the Corps and the appeal process concluded prior to the commencement of any work in waters of the United States
and prior to any work that could alter the hydrology of waters of the United States.
B. ❑ There are Navigable Waters of the United States within the above described project area subject to the permit requirements of
Section ] 0 of the Rivers and Harbors Act (RHA) (33 USC § 403) and Section 404 of the Clean Water Act (CWA) (33 USC §
1344). Unless there is a change in the law or our published regulations, this determination may be relied upon for a period not to
exceed five years from the date of this notification.
C. � There are wetlands within the above described project area that are subject to the permit requirements of Section 404 of the
Clean Water Act (CWA) (33 USC § 1344). Unless there is a change in the law or our published regulations, this determination
may be relied upon for a period not to exceed five years from the date of this notification.
D. � The jurisdictional areas within the above described project area have been identified under a previous action. Please reference
jurisdictional determination issued May 4, 2012. Action ID: SAW-00715.
Basis For Determination:
Remarks:
E. Attention USDA Program Participants
This delineation/determination has been conducted to identify the limits of Corps' Clean Water Act jurisdiction for the particular site
identified in this request. The delineation/determination may not be valid for the wetland conservation provisions of the Food Security
Act of 1985. If you or your tenant are USDA Program participants, or anticipate participation in USDA programs, you should request
a certified wetland determination from the local office of the Natural Resources Conservation Service, prior to starting work.
F. Appeals IllfoCmatlon (This information applies only to approved jurisdiction determinations as indicated in B and
C above).
This correspondence constitutes an approved jurisdiction determination for the above described site. If you object to this
determination, you may request an administrative appeal under Corps regulations at 33 CFR Part 331. Enclosed you will find a
Notificatian of Appeal Process (NAP) fact sheet and request for appeal (RFA) form. [f you request to appeal this determination you
must submit a completed RFA form to the following address:
US Army Corps of Engineers
South Atlantic Division
Attn: Jason Steele, Review Officer
60 Forsyth Street SW, Room 1OM15
Atlanta, Georgia 30303-8801
Phone: (404) 562-5137
In order for an RFA to be accepted by the Corps, the Corps must determine that it is complete, that it meets the criteria for appeal
under 33 CFR part 33 l.5, and that it has been received by the Division Office within 60 days of the date of the NAP. Should you
decide to submit an RFA form, it must be received at the above address by rrlA
**It is not necessary to submit an RFA form to the Division Office if you do not object to the determination in this correspondence.**
BIDDLECOME.WILLIAMJ. �����YNn�dhy�pOLECOMFWIlLAM1JplFI47765M
COl'ps RegulStory OfftCial: wa rus.o�.sc��,�,aw.aan.��.wn,w�sn,
rry�Y'Y Ft-RAtF 1MI I[L�3 111l.sJ]�1
, FSa� M17052? f6fl7�75�W'07
SAW-2017-01082
William Biddlecome
Date of JD: May 4, 2012
Expiration Date of JD: May 4, 2017
The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we
continue to do so, please complete our Customer Satisfaction Survey, located online at
http:llc.or�sm�[�t�.us�c;�.arn�v,millcm ape�li`?�a=13f.4:0.
Copy furnished:
Agent: Booth and Associates. LLC
Liz Ward
Address: 5811 Glenwood Avenue
Raleieh. NC. 27612
Telephone Number:
Boc�t� �A��ociates, LLC
engineering for the future since 1960
5/4/17
Via Electronic Mail
LeiLani Paugh
ICl/OSM Group Supervisor
Natural Environment Section
North Carolina Department of Transportation
Subject: Verification of Mitigation Plan Coverage for Construction Activities
To Install Underground Electric Utility as part of NCDOT
TIP Project B-2500 (Phase I), Dare County, North Carolina
Dear Ms. Paugh:
In response to the North Carolina Department of Highways (NCDOT) Project TIP B-
2500, Cape Hatteras Electric Cooperative (CHEC) is required to relocate its existing
underground transmission power line to facilitate its realignment with the new bridge. Booth
& Associates, LLC has prepared the Pre-Construction Notification for submittal to the
Wilmington District US Army Corps of Engineers Office. We will need to include this
confirmation letter with the submittal package as evidence that the CHEC wetland impacts
will be covered by the existing and approved NCDOT mitigation plan for the subject project.
Per emailed confirmation on September 8, 2016 from Mr. David Hering, LG, PE
(NCDOT), any required wetland mitigation resulting from transmission circuit relocation may
be covered by the wetland restoration site. CHEC construction for the subject project will
require an additional 0.15 acres of permanent impacts to Seetion 404 jurisdictional freshwater
wetlands as shown in the attached drawing.
Terrestrial upland communities in the project corridor are represented by three major
community types: Man- Dominated (maintained/disturbed), Maritime Shrub Thicket, and
Maritime Shrub Grassland. The delineated wetland community types located within the
corridor include: Man-Dominated, Maritime Grassland, Maritirne Shrub Thicket, and
Maritime Shrub/Grassland. Neither streams nor open water are affected by construction
within the corridor. The proposed route avoids as much environmental impact as practical.
Impacts to park land were minimized in design by relocating the duct bank into the
NCDOT right of way, boring under Oregon Inlet Road, and boring under wetlands in front of
the substation adjacent to NC 12. Any clearing will be done by hand and no mechanized
clearing or grubbing is required. Timber matting will be utilized in sensitive areas to reduce
impacts to existing vegetation and reduce impaction from construction vehicles. Existing silt
fence along the NCDOT right of way will be utilized to avoid sediment and runoff impacts to
surrounding aquatic vegetation.
Ms. LeiLani Paugh
May 4, 2017
Page 2
Improvements to existing substation structures and connection of the new cable circuit
requires expansion of the substation fence. A temporary chain link safety fence which does
not require digging posts was chosen to further reduce impacts to existing vegetation. The
location of this fence was modified to completely avoid a small section of CAMA wetlands.
During coordination with NCDOT, it was determined to keep the transmission circuit
installed all the way to the end of the new bridge deck to avoid future relocations as storm
impacts and continued erosion impede stability of the original splice location. This design
reduces the amount of temporary easement required on Pea Island National Wildlife Refuge
and removes the necessity for a concrete duct bank installation and associated wetland
impacts. Furthermore, existing pole structures will be removed by hand with bases to be left
in place to avoid impacts to existing vegetation and wildlife habitat.
Please sign below to acknowledge and agree, subject to approval by the regulatory
agencies, the mitigation of wetland impacts from CHEC construction to be performed by
NCDOT at the Bodie Island Lighthouse Pond SNHA (Site Id #1134) as described in the Final
Wetland Mitigation Plan NC 12 Replacement of Herbert C. Bonner Bridge (Bridge No. 11)
over Oregon Inlet.
LeiLani Paugh
ICl/OSM Group Supervisor
Natural Environment Section
NCDOT
Digitally signed by LnLani Pau9h
�eiLani Paugh�_`"e�m�,��a��,��,�r.o�_Na��,a�
ft�Yvan�+ml'krliun.
IYdlwuqhAndCl;m. i�175
P¢tnSa77, t79+:fu-L4•
George Price
Manager of Engineering & Operations
Cape Hatteras Electric Cooperative
?M+� w'.a W �r+wH�rW
�eorge Price w��•'���..�,- M�,���
l+Y�mn......W.wun?�+*'tmcP �=us
� i���, w.n�rrr
Please feel free to contact our office with any questions.
Sincerely,
BOOTH & ASSOCIATES, LLC
0�9��,uy �9��d ey wnu:m a �o,aa�
W i I I i a m P. J o rd a n �N cnqMlAiNn P.lardan, o=Booth and Associales,
LLC, ou, m W F�mdanwp�haath-assacrom, c=US
Date ia17 05 05 I a: i o:t E-04'00'
William P. Jordan, PE
WPJ/mew
Enclosures
cc: Ms. Susan Flythe (CHEC)
Mr. George Price (CHEC)
Mr. David Hering (NCDOT)
Mr. Steve Thompson (NPS)
17-8450-9005
United States Department of the Interior
F1SH AND \1�1LDLIFE SERVICE
Raleigh GS Field Oftice
Post OFtice Box 33726
Raleigh, Tv�orth Carolina 276 �6-3726
April 6, 2017
Liz Ward
Booth & Associates, LLC
5811 Glenwood Avenue, Suite 109
Raleigh, NC 27612
Re: Cape Hatteras Electric Cooperative — Dare County, NC
Dear Mrs. Ward:
This letter is to inform you that the Service has established an on-line project planning and
consultation process which assists developers and consultants in determining whether a
federally-listed species or designated critical habitat may be affected by a proposed project. For
future projects, please visit the Raleigh Field Office's project planning website at
tiit�:;:/lwww,f�v�.�avlraiei�h/i�p,html. If you are only searching far a lisf of species that may be
present in the project's Action Area, then you may use the Service's Information, Planning, and
Consultation System (IPaC) website to determine if any listed, proposed, or candidate species
may be present in the Action Area and generate a species list. The IPaC website may be viewed
at hcip5:/lec:u5.i'�•s.gur�/i�ac:/. The IPaC web site contains a complete and frequently updated list
of all endangered ancl thre�tened species protected by the provisions of the Endangered Species
Act of 1973, us amended (16 U.S.C. 1531 et seq.}(Act), a list of federal species af�concern� that
are known to occur in each county in North Carolina, and other resources.
Section 7 of the Act requires that all federal agencies (or their designated non-federal
representative), in consultation with the Service, insure that any action federally authorized,
funded, or carried out by such agencies is not likely to jeopardize the continued existence ot� any
federally-listed endangered or threatened species. A biological assessment or evaluation may be
prepared to fulfill that requirement and in determining whether additional consultation with the
Service is necessary. In addition to the federally-protected species list, information on the
species' life histories and habitats and information on completing a biological assessment or
evaluation and can be found on our web page at http://www.fws.gov/raleigh. Please check the
web site often for updated information or changes.
� The tenn "federal species of concern" refers to those species which the Service believes might be in need of
concentrated conservation actions. Federal species of concern receive no legal protection and their designation does
not necessarily imply that the species will eventually be proposed for listing as a federally endangered or threatened
species. However, we recommend that all practicable measures be taken to avoid or minimize adverse impacts to
federal species of concern.
I}'yot�r prc�j�e:t cc�ntai��s 5uit�l�le ll�il�itat far a«y c�i�the fecl�ralty-lisced species known to be
fli`titic'.17i 4Y'lllll[l tlle e;UlllltY 14�h�ec: y�fur �roject �iecur�. tht �?rop�s�+� actic�n has ihe �i�tential to
ad4•er,ely al�f'cct thc�se spcci�ti, !1s such, we recammend that swticys be �ondu�tcd tu det�rmine
the specics' preti��nct or absence within t114 pr�.j�ct ar�a. The use c}i' F�u►'th Carc�lina Nat«ral
Herita�e pr�gram da�a shoulcl not be sub:;ti�uted for a�tual field surveys.
If you d�ter�nine that the proposed action �nay affect {i.e., likely to adversel� affect ar not likely
to adversely affect) a feder�311y-protected speeies, yc�u should notify this oCtic� witll your
determination, the results of your sftrveys, surviy metltoc�c�lc��icti, and ait an�lysis �f the effeets
of the action on listed species, in�,:lt�clin�, eonsider.iti�n aC�iir�ct, i�'idirect, and cumulative effects,
before conducting any activities tlyat c�ii�ltt c�i'fi:�l thc: s�eci�s, 1 I' you determine that the proposed
action will have no effect (i.e., n�� hen�lici�ll eil• tt�����r��, ciir�ct ��r indirect effect) on federally
list�ei sl�ecicy. thNi3 yc�u acr: ��c�t rec;uired tc., cunitic:t our c�#� ic� Fc�r cone��rren�c ( unless a�z
Cnvirom�z�ntal Impact St�:tt�meni is pr�pared). I-luwevcr. �lou slzould maintain a c;c�niplete recard
Q1'th� assessme:nt, inclucli►ig steps leaciin,� tc� yc�ur cieterminacion c�t effect, th� yualified pei-�ann�el
conducting the assessment, habitat conditions, site photographs, and any other related articles.
With regard to the above-referenc�d praject, we affer the tollowing remarks. Our comments are
submitted pursuant to, and in accordancc with, pro�i5ions of thz Endangered Species l�ct.
Based on the information provided and other information avail�ble, it appears that the proposed
action is not likely to adversely affect any federally-listed endan�,ered or thre�tcned species, their
formally designated critical habi#ai, or species cur�•ently �roposeci for listing under the Act at
these sites. We believe that the re�uirements afsectian 7(a){2} af the Act have been satisfied for
your prc�jeci. Please remember tl��t abli�atic�ns under section 7 consultalion must be
reconsiderec� if: (1) new inf'or�l��tian re�eal� impacis of this identified action that may affect
listed species or critical habitat in a manner not previously considered; (2) this action is
subsequently modified in a manner that was not considered in this review; or, (3) a new species
is listed or critical habitat determined that may be affected by the identified action.
However, the Service is concerned about the potential impacts the proposed action might have
on ac�toatic sp�:ci�s. Aquatic resources are highly susceptible to sedimentation. Therefore, we
recommend that all practicable measures be taken to ��Uid aciv�rse irnp�cts to aquatic species,
incllydin� implemeuting directional boring niethods and stri�igent sedimei�t and erosion cantrol
measures. An �rasi4n and sedimentatian control plan should be submitted to and approved by
the North Carolina Division of Land Resources, Land Quality Section prior to construction.
Erosion and sedimentation controls should be installed and maint�ined between the cc�nstruction
site and any nearby down-gradient surface waters. In addition, we recommend maintaining
natural, vegetated buffers on all streams and creeks adjacent to the project site.
The North Carolina Wildlife Resources Commission has develc3pLc1 a Gui�l��iicL Me�nolanct��tit (a
cUpy c:an be found oi� our `avebsite at (http:1lwww,fws.gov/raleiglj} to addr�ss and �nitigate
seennclary and cumulative it�ipacts ta aquatic aild terrestrial wildlife resatuces and water c�uafity.
We recommend that you consider this doeument in the develapment of your projects and in
completing an initiation package for consultation (if necessary).
2
We hope you �ind our web pag� useful and rnivrr�native and that following the process described
above will ret�uce the tim� required, �nd e�iminate the need, For general correspond�nce for
species' lists. If you have any questions or comments, please contact Jolin Ellis of this office at
(919) 856-4520 ext. 26.
Sincerely,
„ !
�,,j"� U %!�
�
ete Benjamin
Field Supervisor
3
Coastal Management
ENVIRONMENTAL pUALITY
George Price
Manager of Engineering & Operations
Cape Hatteras Electrical Cooperative
Buxton, NC 27920
252-995-5616
�; Gt��'�cF' �� �: hGc, ct�p��
Dear Mr. Price,
ROY COOPER
Covernor
MICHAEL S. REGAN
Secrerary
BRAXTON C. DAVIS
Direcfor
I am writing in reference to our meeting on March 22, 2017 at the southern transmission line
location on the south side of the Bonner Bridge near Nags Head, North Carolina. I would like to
verify that we met on site to asses any environmental impacts that could potentially come from
the proposed work near the aforementioned transmission lines location in regards to the Coastal
Area Management Act. After review of the plan drawings and site assessment it appears that all
necessary precautions have been given to avoid potential impacts to CAMA.
If you have any further questions or are in need of any further assistance pertaining to this, or
any other project please feel free to contact me.
�UlCI'.1'��j+. j,//1 ¢�'�f''1
f ��Y ��V
Y
C'Yzlthi.� Rc�u ��•e�:
Field Representative
NC Division of Coastal Management
401 South Griffin Street, Suite 300
Elizabeth City, NC 27909
252-264-3901
�Nothing Compares�.
State of North Carollna I Environmental Quality I Coastal Management
Ellzabeth City Office I 401 South Grlffin Street, Suite 300 I Elizabeth Clty. Nortli Carallna 27909
252 Z64 3901
a,.•
i .ti
Coastal Management
ENVIRONMENTAL OUALITV
George Price
Manager of Engineering & Operations
Cape Hatteras Electrical Cooperative
Buxton, NC 27920
252-995-5616
Geor�eP@chec.COOp
Dear Mr. Price,
ROY COOPER
Governor
MICHAEL S. REGAN
Secrelary
BRAXTON C. DAVIS
Drrecfa�
I am writing in reference to our meeting on January 18, 2017 at the substation located near the
Bonner Bridge in Nags Head, North Carolina. I would like to verify that we met on site to asses
any environmental impacts that could potentially come from the proposed work near the
aforementioned substation in regards to the Coastal Area Management Act. After review of the
plan drawings and site assessment it appears that all necessary precautions have been given to
avoid potential impacts to CAMA.
If you have any further questions or are in need of any further assistance pertaining to this, or
any other project please feel free to contact me.
Sincerely, }�, ? �
G-�q ' �'.'� __ �r:C.%
Cynthia R���rtt��-�e
Field Representative
NC Division of Coastal Management
401 South Griffin Street, Suite 300
Elizabeth City, NC 27909
252-264-3901
�Nothing Compares,,.�_
State of North Carolina I Envlronmental Quality I Coastal Management
Elizabeth Clty Office I 401 South Grlffin S�reet. Suite 300 I Ellzabeth Clty, North Carollna 27909
252 264 3901
�i�
STATE STQRNiWATER N(3I
G�NERAL LINEAR UTILITY LINE PEFtMIT
17-8450-9005/111 ��1t ll I I
� June 2017 ``r'` :''~� �t'l�Zt�'•`'
N.C. DIVISION OF WATER QUALITY
SURFACE WATER PROTECTION SECTION
STATE STORMWATER NOTICE OF INTENT (NOI)
SWG040000 - GENERAL PERMIT TO CONSTRUCT A LINEAR UTILITY LINE
AND ASSOCIATED INCIDENTAL BUILT-UPON AREA
State Stormwater Management Application Notice of Intent for coverage under the General Stormwater Management
Permit to construct a utility line and incidental built-upon area associated with a linear utility project including water,
sewer, gas, telephone, and electric.
For the construction, operation and maintenance of incidental impervious areas associated with the construction of a
linear utility line. Incidental built-upon area associated with the utility project includes small, single pump stations,
access roads which minimize their built-upon area, concrete pads, manhole covers, etc.
(Please print or type)
1. Mailing address of owner/developer: (The address to which all permii correspondence will be mailed.)
Owner/Developer Name Cape Hatteras Electric Cooperative (CHEC)
Street Address 47109 Light Plant Road
City B�xt�� State N� ZIP Code 2�920
Telephone No. ( 25z � 995-5616x236 Fax ( z52 ) 995-0OBB
2. Proposed Project Information:
Project Name Cape Hatteras Electric Cooperative Bonner Bridge Transmission Circuit Relocation
Street Address Cape Hatteras National Seashore, 98 NC-12 & Oregon Inlet Rd
of the Project
City NagsHead State N� ZIP Code 2�959
County Dare
Contact Person George Price - Manager of Engineering and Operations
Mailing Address 47109 Light Plant Road
City Buxton State "� ZIP Code z�92°
Telephone No. ( z5z � 995-5616 x236 Fax (zs2 ) sss-aoes
3. Physical Location Information:
Please provide the street address of the project and describe how to get to the project, using street names,
state road numbers, and the distance and direction from the nearest major intersection: Be9��a<<ne���e«���o�or�ne
CHEC substation near 98 Oregon Inlet Road (SR-1256) off of NC Highway 12. Head south over Oregon Inlet via the Bonner Bridge and end near the intersection of
Lifeboat Station Road (SR-1257) and NC Highway 12 on Pea Island Conslruction lo take place within existing right of way on weslern side of NC Hwy 12
4. What is the name of the receiving stream? Oregon Inlet (30-22-1), Motts Creek (30-21-13), Roanoke Sound (30-21)
5. River Basin Pasquotank Receiving Stream Classification SA/HQW, SC, SA/HQW
6. This Certificate of Coverage is being submitted as a result of:
� New or proposed project ❑ Modification to an existing project
Existing COC or Permit Number:
Date project is scheduled to begin construction si2o��
7. What is the total project area above mean high water? 96,268 ftZ
8. What is the total amount of built-upon area proposed at this site? 7,305 ft
z
(Please include all manhole covers, pump stations, concrete pads, and gravel access roads)
SW I I-11 Fi-17FFR9(11() Pana 1 �f :i
9. What type of utility project will be constructed?
❑ Water ❑ Sewer ❑ Gas ❑ Telephone 0 Electric ❑ Other
10. Has the built-upon area been minimized to the extent practicable?
� YES ❑ NO
11. Is the runoff from the built-upon area outside the vegetative buffer directed away from surface waters, to the
extent practicable?
� YES ❑ NO
12. Is the project within 575' of the Mean High Water line of class ORW waters?
� YES (Please show the 575' AEC line on plans) ❑ NO
(If yes, tofal built-upon area must be less than or equal to 25% ol the total projecf area within the AEC above mean high water.)
13. Are there any wetlands on the site? � YES (please delineate on the plans) ❑ NO
Name and affiliation of person making this determination: Sam Cooper with CZR Environmental Consultants
14. Please list all Best Management Practices employed at this site:
Please see sheets ESCP-4 through ESCP-6 of the plan drawings, Sections 5& 6(Construction Sequence, General BMP Notes & Maintenance) oF attached plan.
The post development drainage will not increase from driving poles and attaching aerial distribution cables. The underground cable will be direc[ional
bored to reduce land disturbance. Existing drainage will not be altered by use of slatted timber matting & no additional culverts or conveyance devices will be required.
15. Certification:
North Carolina General Statute 143-215.6B (i) provides that:
Any person who knowingly makes any false statement, representation, or certification in any application, record, report, plan,
or other document filed or required to be maintained under this Article or a rule implementing this Article; or who knowingly
makes a false statement of a material fact in a rulemaking proceeding or contested case under this Article; or who falsifies,
tampers with, or knowingly renders inaccurate any recording or monitoring device or method required to be operated or
maintained under this Article or rules of the Commission implementing this Article shall be guilty of a Class 2 misdemeanor
which may include a fine not to exceed $10,000. (18 U.S.C. Section 1001 provides a punishment by a fine of not more than
$10,000 or imprisonment of not more than 5 years, or both, for a similar offense.)
I hereby request coverage under the referenced General Permit. I understand that coverage under this permit will
constitute the permit requirement for the project and is enforceable in the same manner as an individual permit.
I certify that I am familiar with the information contained in the application and that to the best of my knowledge and
belief such information is true, complete, and accurate.
PI'lllted 11afT12 Of p21'SOII Slgnlllg: George Price - Cape Hatteras Electric Cooperative
Tltle: Manager of Engineering and Operations
(Signature of Applicant)
(Date signed)
A check or money order must accompany this Notice of Inten[ for $505.00, made payable to: NCDENR.
Your application will be returned unprocessed unless all of the following items are submitted:
✓❑ This completed form
✓❑ Two sets of site and grading plans
✓❑ A check for $505.00
✓❑ A USGS map with the project clearly located on it.
Mail the entire package to: NCDENR Division of Water Quality
Surface Water Protection Section — Stormwater
at the Appropriate Contact Address (see the following page)
Note: The submission of this document does not guarantee the issuance of a Certificate of Coverage under the
General Permit.
RWI I-11R-17FFR7fli(1 PanP 2 nf �
3.0
ERC)SI�N {& SEDI�'IENTA'I`ICIN C�NTT��L
PIIAN 11E�*I�'AILS
17-8450-9005/l l 1 ` ���;�1
� June 2Q 17 ' ' ' .'4
EROSION & SEDIMENTATION CONTROL PLAN
CAPE HATTERAS ELECTRIC COOPERATIVE
BON�JER BRIDGE TRANSMISSION CIRCUIT RELOCATION
NORTH CAROLINA
DARE COUNTY
PREPARED FOR:
�
— �
� � Hatte�,�S
�
� Electric �oo erative
p
A Touchstone Energy Cooperative �e�
�
June 2, 2017
TABLE �F CUNTENTS
SECTION
1.0 PROJECT DESCRIPTION ..................................................................................1
2.0 EXISTING SITE CONDITIONS ...........................................................................3
3.0 SOIL CONDITIONS ..........................................................................................4
4.0 DESIGN APPROACH .......................................................................................5
5.0 CONSTRUCTION SEQUENCE ...........................................................................5
6.0 GENERAL CONSTRUCTION NOTES & MAINTENANCE .....................................8
APPENDIX A:
APPENDIX B:
APPENDIX C:
LIST OF APFENDICES
FINANCIAL RESPONSIBILITY/OWNERSHIP FORM, LETTER OF CONSENT
& LIST OF EASEMENT GENERAL WARRANTY DEEDS
VICINITY MAP & USGS QUADRANGLE MAP
BONNER BRIDGE NCDOT TIP B-2500 WETLAND DELINEATIONS,
PREVIOUSLY OBTAINED PERMITS FOR NCDOT TIP B-2500
APPENDIX D: FEMA FLOOD MAPS
APPENDIX E: NRCS SOILS MAP & SUBSURFACE SOIL REPORTS
APPENDIX F: SELF-INSPECTION REPORT FOR LAND-DISTURBING ACTIVITY
APPENDIX G
17-8450-9005/111
�O June 2017
EROSION & SEDIMENTATION CONTROL PLAN DRAWINGS
i ��,I I �
�:;--. ti5t�r•i�tll"ti
1.0 PROjECT DESCRIP'�IUN
Construction of the new Bonner Bridge for NCDOT TIP B-2500 requires relocation of existing Cape
Hatteras Electric Cooperative (CHEC) transmission cable. A new transmission circuit is required to be
installed to provide uninterrupted electrical service to CHEC customers during and after the construction
of the NCDOT TIP B-2500 Bonner Bridge project. CHEC will install a new underground transmission
power line in Cape Hatteras National Seashore onto the new Bonner Bridge over Oregon Inlet in Dare
County. CHEC proposes to replace the existing circuit within its existing and NC DOT's right-of-way
easements granted by the National Park Service (NPS) and Fish and Wildlife Service (FWS). The existing
power line is encased in a cement "duct bank" (two feet by four feet (2'X4') concrete vault) on the
eastern side of NC Highway 12 which will be left in place after the new construction. The proposed
work detailed below comes after consideration of numerous line routes and construction methods. The
proposed route avoids as much environmental impact as practical. Through the course of design, the
alignment has been simplified by utilizing NC DOT right-of-way. Conflicts with road access to the nearby
fishing center and area wetlands are mitigated as much as practical by utilizing a horizontal directional
bore installation method for a portion of the transmission power circuit route.
The project consists of constructing the following:
1. A ten foot (10') wide temporary access road using removable matting from Oregon Inlet Road to the
existing CHEC substation north of Bonner Bridge (approximately 365 feet in length). This road will
mitigate impacts to the maintained wetlands around the substation to allow access for large utility
vehicles and construction equipment. Hand clearing (if needed) and between fifteen to thirty feet of
matting around the substation will be used to support this construction effort. After construction the
temporary access road and matted areas south and east of the substation will be converted to a
permanent gravel drive with turnaround for future maintenance access to the substation.
2. Installation of a new underground 115kV transmission power circuit consisting of:
a. A total of five (5) conduits in duct bank— four 6" conduits and one 2" inch conduit
b. Approximately 1,225 linear feet of four (4) foot wide and one (1) foot tall concrete duct bank
— utilizing a high early mix design for faster setting to close open trench sooner than typical
c. Approximately 420 linear feet of horizontal directional bore under Oregon Inlet Road and
maintained wetlands to inside the expanded substation fence
d. One below-grade utility vault — approximately ten (10) feet x twenty (20) feet x six (6) feet tall
e. No less than three (3) feet below grade to top of duct bank/vault
f. Duct bank to be open-cut trenched the total length of circuit from the new proposed bridge
end bent #2 to Oregon Inlet Road
Once the new transmis5ion power circuit is installed and commissioned, power shall be transferred off
the existing circuit to the new. The existing CHEC duct bank is planned to be abandoned in place, with
the understanding that the National Park Service may require its removal at a future date. Any required
wetland mitigation resulting from transmission circuit relocation will be covered by the NCDOT 8-2500
wetland restoration site.
17-8450-9005/111 13 H �) l;
�O June 2017 P a g e � 1 ��.5cx'''ll `.5
Proposed land disturbance will be limited to the existing right of way areas adjacent to NC 12, the
existing substation, and near an existing overhead line on Pea Island where the cable will be connected
to a new overhead riser structure. Soil disturbing activities will include: installing erosion and sediment
controls, obstruction hand clearing, directional boring, open trenching, pole installation, a gravel access
road, and any necessary seeding and stabilization. Timber matting and hand-clearing will be used to
ensure wetland protection. Silt fencing and coir wattle will be used to prevent sediment from flowing to
nearby drainage ditches, riparian buffers, wetlands, and waterways. The total project limits north and
south of the bridge include 2.21 acres, of which 1.56 acres includes land disturbance. Impacts to
wetlands were minimized and include temporary hand clearing for pole construction and removal
access, as well as fill for a gravel drive. The built-upon area is only 7.6% of the total project area. Please
reference Appendix H for the Erosion and Sedimentation Control Plan drawings for more location and
design details.
17-8450-9005/111
OO June 2017 P a e 2 �.x)t�l
g � �° ,�;c [''' '�
2.0 EXISTING SITE CONDITIONS
This project site is located within the Tidewater Region of the Coastal Plain Physiographic Province in
Dare County. Terrestrial upland communities in the project corridor are represented by three major
community types: Man- Dominated (maintained/disturbed), Maritime Shrub Thicket, and Maritime
Shrub Grassland. The delineated wetland community types located within the corridor include: Man-
Dominated, Maritime Grassland, Maritime Shrub Thicket, and Maritime Shrub/Grassland. Neither
streams nor open water are affected by construction within the corridor. Land use is classified as
Parks/Bare Land - Outdoor Cultural, Public Assembly, and Recreation. Current site conditions are
disturbed for ongoing NCDOT construction. Shoreline erosion and nourishment are ongoing on Pea
Island. Cape Hatteras National Seashore wetlands adjacent to NC 12 and near the substation are
maintained by mowing.
The Corps issued the original DA permit SAW-2012-00715 to NC DOT on May 4, 2012 and SAW-1993-
03077 issued to NC DOT on August 20, 2013, with modifications approved October 21, 2015 for impacts
associated with TIP B-2500, replacement of the Bonner Bridge over Oregon Inlet. Impacts assessed for
the project in the 2008 Final Environmental Impact Statement and 2010 Environmental Assessment
included areas of study where relocation of utilities will be required by this project. Wetlands identified
in the 2012 delineation by CZR are shown on the Erosion and Sedimentation Control Plan drawings in
Appendix H. Please reference Appendix C for details on existing permits and wetland delineations.
The USGS Hydrologic Atlas indicates that the parcel is located fully within the Albemarle sub-basin of the
Pasquotank River basin of hydrologic unit code 03010205. The landscape slopes from an elevation of 13
feet to sea level and has an elevation of 3 feet AMSL at the substation up to 6 feet AMSL through the
transmission corridor. The project site is mostly flat draining into Oregon Inlet (30-22-1), Motts Creek
(30-21-13), and Roanoke Sound (30-21), which are in respective Classes SA/HQW, SC, and SA/HQW.
Coastal Area Management Act impacts were assessed on site to be avoided and no buffer rules are
applicable. Federal Emergency Management Agency (FEMA) DFIRM Flood Data lists the site in Panels #
373007 (2600J, 2500J, 3400J, and 3500J). Please reference the FEMA maps in Appendix D.
17-8450-9005/111 �( K)1 � 1
�O lune 2017 P a g e � 3 �� :;�[�t�'�tt ��+
3.U_5UtL C+ONDITIUIV�
The substation and transmission corridor on Cape Hatteras National Seashore north of the Bonner
Bridge includes the following soil types:
Dare County, North Grolina (NCOSS)
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
C�A Cartere� sand �:0 2 perce^t C.0 �.4°e
slopes, frequently `locced
D;A Ductst�n f ne sand G tc 2 2 9 32.4°;
percen; slc�es, cccasionally
flocced
PJeC Newhan ine sand. D to 10 5.4 °�8,6'ti
percen; slcpes
NnC Newhan-Corolla comp ex. D l0 0? 7.6°b
1 C percent s apes
W Water 0 0 �.D°b
Totals for Area of Interest 9.0 100.U%
The new riser structure and transmission corridor on Pea Island south of the Bonner Bridge includes the
following soil types:
Dae Courd�r. N«th Canolina (NC055j
Map Unit 5ynbol Map U�rt N�ne Aaes in Ae01 Peroe�d af AOI
CEA :ar:ene[ sanc_ D �0 2 pH�o-ent D,1 G 6'�'e
scpes, irEcuernly flovded
G4� Ducksran fine sanc. 0 ta 2 6.8 E►2.1'.•:
perc�t slcpes, oxasi�nalfy
Facdec
Tatals (or Area oFlnterest 8.6 100_04G
Reference the USDA NRCS Soil Survey found in Appendix E for more details about these site soil
conditions.
17-8450-9005/111
OO June 2017 P a e 4 � y�ji}1
g I tisr�t''' �s
4.0 DFS�GN APPRUACH
In order to prevent sediment from leaving the project site, several erosion and sediment control devices
are to be installed. Construction entrances will be properly installed and any sediment tracked onto the
roadway will be cleaned up immediately. The disturbed site will have silt fencing installed around its
perimeter. In areas upslope of sensitive water bodies, it is recommended that standard silt fence
outlets be installed.
Care has been taken in design to avoid direct impact to wetlands; however the project site is in close
proximity to some wetlands. Impacts to park land were minimized in design by relocating the duct bank
into the NC DOT right of way, boring under Oregon Inlet Road, and boring under wetlands in front of the
substation adjacent to NC 12. CHEC has been working in coordination with NCDOT, Cape Hatteras
National Seashore, Pea Island National Wildlife Refuge, and associated permitting authorities to have
construction on the electric transmission cable ready to be attached to the new bridge structures in
accordance with the NCDOT project timeline. Construction on TIP B-2500 will continue for the next
several years; therefore, limited access for shared equipment laydown areas and construction access
require sequencing of permit approvals and bid schedules. Booth & Associates, LLC began interagency
coordination meetings between the NPS, FWS, NCDOT, CHEC, for the collaborative design of the Cape
Hatteras Electric Cooperative utility relocation in August 2016. A timeline was established for
coordination of using NCDOT right-of-way and having the cables installed and ready to pull onto the new
Bonner Bridge by December 2019. All disturbed areas will be stabilized by seeding and mulching. After
construction has ceased and the site is stabilized with permanent vegetation, the temporary erosion
control measures will be removed and stabilized with vegetative covering. The Owner, along with
NCDEQ shall determine when permanent vegetation is well established. For further detail, please see
Section 5.0 Construction Sequence and Section 6.0 General Construction Notes & Maintenance.
5.0 CUNSTRUCTION �EQUENCE
5.0 Obtain all applicable permits. Contact NCDEQ Washington Regional Land Quality at 252-946-
6481 prior to beginning construction.
5.1 Before work begins at any site, the contractor will evaluate the site with respect to earth
disturbance and erosion potential. Sensitive areas are identified on the enclosed plan
drawings. There will be no mechanized clearing, grading, or grubbing. Only hand-clearing may
be utilized with equipment such as chainsaws and similar small devices.
5.2 Flag construction limits and hand clear what is necessary to install timber matting to access
the substation and install temporary perimeter fencing.
5.3 Install stormwater inspection box with rain gauge, stormwater inspection report, and a copy
of the permits as indicated in the Construction Notes in the ESCP drawing details. The
inspection box will be placed on the outside of the temporary fencing around the construction
17-8450-9005/111
f3ut�tli
�O June 2017 P a g e � 5 Fr;�.�9cx'iiltE'�+
area. The self-inspection records for land disturbing activities per G. S. 113a-54.1 must be
completed weekly and within 24 hours of a% inch or greater rainfall event. Extra copies of
the self-inspection forms should be placed in the inspection box. See Appendix F of this plan
for a copy of the form.
5.4 Hand clear as necessary to install compost socks, additional silt fencing and silt fence outlets
within construction limits. All debris/spoil, trees, and scrub to be hauled away and stored at a
NCDEQ approved location.
5.5 Install any remaining erosion control measures prior to onset of land disturbing activities.
Disturb only what is necessary to install these measures. Make sure to place silt fence on
three sides of any stockpiled soil leaving one side free for access. Erosion control matting that
incorporates plastic mesh and/or plastic twine shall not be used along streambanks or within
wetlands.
5.6 Immediately stabilize land-disturbing activity with vegetative cover using the following
permanent seed mixtures at rates of 12 Ibs PLS/acre with an additional cover crop of grain rye
at 30 Ibs/acre.
Caqe Hattera5 Grass Seed Mix Version 2
% of
Mix Latin Name Common Name Cultivar/
Ecotype
4 Agrostis hyemalis Winter Bentgrass NC
15 Elymus virginicus Virginia Wildrye Suther (NC)
5 Festuca rubra Creeping Red Fescue Commercial
5 Panicum amarum Coastal Panicgrass `Atlantic'
20 Panicum anceps Beaked Panicgrass SC
5 Panicum virgatum Switchgrass Carthage
38 Schizachyrium scoparium Little Bluestem NC
g Sorghastrum elliottii Slender Indiangrass NC
100 Total
5.7 Ground cover sufficient to restrain erosion must be provided in this HQW zone within 7 days.
All disturbed areas shall be provided temporary or permanent stabilization with ground cover
daily. Only disturb that length which can be stabilized by the end of the day.
17-8450-9005/111 ��x)1.� I
�O June 2017 P a g e � 6 �E �w{������{*.;
5.8 All seeded areas will be checked regularly to see that a good stand is maintained. All
disturbed areas will be limed, fertilized, or reseeded as necessary according to the rates
provided.
5.9 All erosion and sediment control measures will be inspected weekly and after each significant
rainfall event. Needed repairs will be made immediately and indicated on the stormwater
inspection forms kept in inspection box on site. The following items will be checked in
particular:
5.9.1 The silt fencing will be checked regularly for failures and repaired immediately. If
sediment accumulates to one-half (1/2) of the fence height, the sediment shall be
removed.
5.9.2 All seeded areas will be checked regularly to see that a good stand is maintained.
Areas will be fertilized and reseeded as needed.
5.9.3 Roadside culverts will be checked to ensure that sediment has not accumulated in
accumulated in the ditch. If so, remove the sediment and stabilize the ditch
immediately.
5.9.4 If sediment is found on road at any time during construction, it will be removed
immediately.
5.10 The following must be kept on site until the ESCP Plan has been closed out by Land Quality: 30
days of self-inspection records, rain gauge, approval certificate/letter, approved plan and
NPDES permit. These items should be located near the main construction entrance. Failure to
maintain these items on site violates the NPDES permit.
5.11 After the site is stabilized, coordinate with NCDOT to remove/reposition all temporary
sediment control measures and determine areas to apply permanent vegetation. After the silt
fences have been cleared of accumulated sediment, stabilize immediately with permanent
vegetation. All accumulated sediment shall be removed off-site to a NCDEQ permitted
location. The silt fencing is to remain until all construction is complete and permanent
vegetation is established. Silt fencing to be removed by owner.
5.12 Estimated time before phase 1 final stabilization is six (6) months. Estimated time before
phase 2 final stabilization is twelve (12) months. Estimated time before phase 3 final
stabilization is twenty-four (24) months.
17-8450-9005/111
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�O June 2017 P a g e � 7 •� 5titx•i�t ['s
6.Q GENERAL CUNSTRUCTIUN NOTES & MAINTENANCE
6.1 Unless otherwise indicated, all vegetative and structural erosion and sediment control
practices will be constructed and maintained according to minimum standards and
specifications of the North Carolina Erosion and Sediment Control Planning and Design
Manual.
6.2 Additionally, the following standards for Sensitive Watersheds will be implemented:
6.2.1 Vegetative root systems shall be left intact to maintain the integrity of the soil.
6.2.2 Rip rap shall not be used.
6.2.3 Application of fertilizer to establish planted/ seeded vegetation within disturbed
riparian areas and/ or wetlands shall be conducted at agronomic rates and shall
comply with all other Federal, State and local regulations. Fertilizer application
shall be accomplished in a manner that minimizes the risk of contact between the
fertilizer and surface waters. No herbicides will be used in maintenance of
easement.
6.2.4 Construction activities shall minimize the removal of vegetation, the extent of the
disturbed area, and the time in which areas remain in a disturbed state. In
wetlands, mats shall be utilized to minimize soil disturbance.
6.2.5 Concrete is used during construction of open trench duct bank installation. All
necessary measures shall be taken to prevent direct contact between uncured or
curing concrete and waters of the state. Water inside coffer dams or casings that
has been in contact with wet concrete shall be pumped into filter bags and can be
discharged on uplands after the concrete is set and cured.
6.2.6 All mechanized equipment operated near surface waters shall be inspected and
maintained regularly to prevent contamination of surface waters from fuels,
lubricants, hydraulic fluids, or other toxic materials. Construction shall be staged
in order to minimize the exposure of equipment to surface waters to the
maximum extent practicable. Fueling, lubrication and general equipment
maintenance shall not take place within 50 feet of a waterbody or wetlands to
prevent contamination by fuels and oils.
6.2.7 Active measures shall be taken after construction and during routine maintenance
to ensure diffuse flow of stormwater.
6.3 It is the responsibility of the contractor to perform all necessary maintenance during
construction. Once construction is complete, the Owner will assume maintenance
responsibilities.
6.4 The contractor shall be responsible for stabilizing the work site before moving to the next
location. Areas damaged during construction activities shall have necessary additional
erosion and sedimentation control measures.
6.5 All moratoriums on construction activities established by the NC Wildlife Resources
Commission (WRC), US Fish and Wildlife Service (USFWS), NC Division of Marine Fisheries
(DMF), or National Marine Fisheries Service (NMFS) shall be implemented. Exceptions to this
condition require written approval by the resource agency responsible for the given
moratorium. A copy of the approval from the resource agency shall be forwarded to DWR.
17-8450-9005/111 i� x�) i 1
�O June 2017 P a g e � 8 ��;s� �'� t[�ti
6.6 A preconstruction meeting is required 30 days prior to the start date to review permitting
conditions such as:
6.6.1 The exterior and underside of all vehicles and matting must be steamed or
power washed outside of Park property to be free of weeds, seed, debris and
mud to prevent the introduction and/or spread of exotic, invasive plants.
6.6.2 The refuge managers shall be contacted before any surface work is done
including mowing, digging, clearing or trimming vegetation, installation of
structures, etc.
6.6.3 The Point of Contact (POC) will direct any inquiries and communications to the
Park during daily operations.
6.6.4 Vehicles and equipment must not interfere with or impede routine visitor traffic
or use of park resources.
6.6.5 The only items that will be allowed within the rights-of-way and easements will
be equipment and materials necessary for ongoing work at that time. No
unused equipment or material will be left in the area for extended durations.
All material and equipment not in use at the site will be staged only in
designated staging areas approved by the Park.
6.6.6 A meeting between the Park and Permittee representatives must occur on-site
to review and approve materials and acceptable plant species prior to planting
vegetative cover on the road shoulder.
6.6.7 Any water discharge piping shall be laid and removed by hand. The specific
location of piping and discharge will be negotiated and approved in advance
during an on-site meeting between the Permittee and Park representative.
6.6.8 An on-site meeting is required immediately prior to the start of construction
between �representatives of the Park, the construction/maintenance
supervisors, and contractor representatives to determine and clarify scope of
the project. The construction/maintenance supervisors will contact the District
Ranger on the morning of the first and last day of work, advising the location
and extent of work crews and equipment in the park.
6.6.9 Contractors/subcontractors will coordinate with the Permittee and Park staff to
reduce disruption of normal park activities. At least 48-hours prior to the arrival
of heavy construction equipment, contractors will notify the Park's POC and
District Ranger to minimize traffic delays that may occur as trailers carrying
equipment turn off Highway 12 or access other areas of the Park.
6.6.10 Refer to the Park's annual Hurricane Plan for an outline of steps to be taken
under certain storm events and evacuations. The terms and conditions of this
plan and all directives issued by the Incident Command must be followed.
6.6.11 From May 1 through November 15, all lighting associated with the Project shall
be limited to the immediate area of active construction only and shall be the
minimal lighting necessary to comply with safety requirements. Only lights
approved in the Biological Opinion and subsequent Section 7 consultations are
required to minimize illumination of the nesting beach and nearshore waters.
Shielded low pressure sodium vapor lights are highly recommended for lights on
offshore equipment.
6.6.12 Discovery of Previously Unknown Remains and Artifacts requires halting
construction and must immediately be reported to the park's Cultural Resource
Specialist 252-475-9021 and District Engineer 252-475-8308. The district
engineer will initiate the Federal, Tribal, and state coordination required to
determine if the items or remains warrant a recovery effort or if the site is
eligible for listing in the National Register of Historic Places.
17-8450-9005/111 �3 x)��1
�O June 2017 P a g e � 9 �5�r)Clt�tes
6.6.13 Contractors must identify all areas to be used to borrow material, or to dispose
of fill or waste material for approval by Permittee and USACE to ensure that all
borrow and waste activities occur on high ground and do not result in the
degradation of adjacent wetlands and streams.
6.6.14 Contractors and agents must comply with the terms and conditions of all
permits obtained by NCDOT for Phase I of TIP B-2500 and Cape Hatteras Electric
Cooperative for this work. Copies of these permits, including conditions, shall
be available at the project site during construction and maintenance of this
project.
17-8450-9005/111 � t rS �� � �
�O June 2017 P a g e � 10 �= .;.;� •�• ��.;
AP�ENI�ICES
17-8450-9005/111 ��� ri �I � t
�O June 2017 �: �1�wc �� •i.a lt�ti
APPENDIX B
VICINITY MAP
USGS QUADRANGLE MAP
17-8450-9005/111 � �_ �i �[ I �
�O June 2017 s..� y�,;�;t�,•i{���,,;
�
r
SITE
NORTHERN SITE INFORMATION
OWNER: UNITED STATES GOVERNMENT
PARCEL IDENTIFICATION #: 071700685122
DEED BOOK 79, PAGE 548
EXISTING SUBSTATION COORDINATES
35'47'S8.2207"N
7532'48.4633"W
.
�`` Oregon lnle t
.
PROPOSED '
TRANSMISSION �"�
ROUTE •�
.
�
.
.,. , _
SOUTHERN SITE INFORMATION
OWNER: UNITED STATES GOVERNMENT
PARCEL IDENTIFICATION #: 074200340875
DEED BOOK 19, PAGE 451
PROPOSED TRANSMISSION STRUCTURE �12 COORDINATES
35'45'S3.7268"N
7531'15.0904"W
0 1000 2000 4000
GRAPHIC SCALE
1 "=2000'
DWN.
CKD.
SCALE:
JOB N0.
c0
'E HATTERAS ELECTRIC COOPERAl1VE
BUXTON, NORTH CAROLINA
BONNER BRIDGE TRANSMISSION CIRCUIT
RELOCATION VICINITY MAP
r�ir►c�tli Sc11���c�r.°i�<<tf�s. LLC
AA�w DATE: 5/17/17
MEW APPD. WPJ DWG. N0.
1" = 2000' FILE: »a45ovM.�wc
178450 DA� REwSION VM-1
5/17
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APPENDIX E
NRCS SOILS MAPS
17-$450-9005/111 � y� �� �'l � �
�O June 2017 �: �,,ria��ti�r,
.>.,' 4?:4 fl
�
Soil Nlap—Dare County. North Carolina
(Bonner Transmission Relocation - CHNSj
d`.'_"ui�i �`�f��� diJ7S 4Fi(k3CA 4°O�AO
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41�'l,ll ;t_M7iA.l -,,..i!! A�{li� <'}(;.;Q.i
,. Map �cale: 1:4,03G if pnnl:ecl on A{�orb��t (8S' x 11") sheet.
htleters
'- F� n 50 10J 200 3�6
� Feet
7 7 �0 �70 Q� 900
f��p pro�e ction: Web Mer�ator Comer ca�rrlin�,r-s: WGSE34 [dge tic3: UTM Zone 18N WGS&A
��yp;> Natural Resources Web Soil Survey
� Conservation Service National Cooperative Soil Survey
d�i:�l�i
5/15/2017
Page 1 of 3
MAP LEGEND
Area of Interest (AOI)
Area of Interest (AOI)
sous
�
�'.
Soil Map Unit Polygons
Soil Map Unit Lines
Soil Map Unit Points
Special Point Features
v Blowout
Borrow Pit
Clay Spot
Closed Depression
Gravel Pit
Grevelly Spot
Landfill
Lava Flow
Marsh or swamp
Mine or Quarry
Miscellaneaus Water
Perennial Water
Rock Outcrap
Saline Spot
Sandy Spot
Severely Eroded Spot
Sinkhole
Slide or Slip
Sodic Spot
Soil Map—Dare County, North Carolina
(Bonner Transmission Relocation - CHNS)
Spoil Area
S4ony Spot
Very Stony Spot
Wet Spot
Other
Special Line Features
Water Features
Streams and Canals
Transportation
� Rails
.v
.�.s
Interstate Highways
US Routes
Major Raads
Local Roads
Background
� Aerial Photography
MAP INFORMATION
The soil surveys that comprise your AOI were mapped at
1:24, 000.
Warning: Soil Map may not be valid at this scale.
Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
scale.
Please rely on the bar scale on each map sheet for map
measuremen#s.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated fram the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Dare County, North Carolina
Survey Area Data: Version 16, Sep 19, 2016
Soil map units are labeled (as space allows) for map scales
1:50,d00 or larger.
Date(s) aerial images were photographed: Data not available.
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
USDa Natural Resources Web Soil Survey 5/15/2017
� Conservation Service National Cooperative Soil Survey Page 2 of 3
Soil Map—Dare County, North Carolina
Nlap Unit Legend
Map Unit Symbol
CeA
DtA
NeC
NhC
W
Totals for Area of Interest
Dare County, North Carolina (NC055)
Map Unit Name Acres in AOI
Carteret sand, 0 to 2 percent
slopes, frequently flooded
Duckston fine sand, 0 to 2
percent slopes, occasionally
flooded
Newhan fine sand, 0 to 10
percent slopes
Newhan-Corolla complex, 0 to
10 percent slopes
Water
I
Bonner Transmission Relocation -
CHNS
IPercent of AOI
D.0 0.4°/a
2.9 32.4%
5.4
0.7
0.0
9.0
59.6%
7.6%
0.0%
100.0%
U� Natural Resources Web Soil Survey 5/15/2017
� Conservation Service National Cooperative Soil Sunrey Page 3 of 3
1�=4fY.: 45; 53CI 4575C0
35" 46' 1" N �. . �
�
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4'. T / ' �'! � t .,
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[ y=���� w.'. ��+Y- ,y���
� 't -_�. f, _ t:-a;._
35" 45' 47' N
8
�
�
�-
�-
�
Soil Map—Dare Gounty, North Carolina
(Bonner Transmission Relocation - PINWR)
��
1 � ��
� _
452740
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3
� Map Sc31e: ?:3,210 fi pnnfed on .4landsra;rz ( i l" x 8.5"} ,lieet.
~ N =h1?t�ar�
^ 0 45 90 18Q 270
J� -` F�C
n o , �o �oo coo soo
/�1 Map projection: VUeb Merrator Cnmer ra�rrJinaC�: WG584 Edge Ucs: UTM Zone 18N WG584
USDn Natural Resources Web Soil Survey
�' Conservation Service National Cooperative Soil Survey
4•'i�."B@] 4`a�"�✓1 453��0
�
_�
35° 45' 47" N
5/15/2017
Page 1 of 3
MAP LEGEND
Area of Interest (AOI)
Area of Interest (AOI)
�
:
Soil Map Unit Polygons
Soil Map Unit Lines
5oil Map Unit Points
Special Point Features
(� Blowout
C=:
w
�
Borrow Pit
Clay Spot
Closed Depression
Gravel Pit
Gravelly Spot
Landfill
Lava Flow
Marsh or swamp
Mine or Quarry
Miscellaneous Water
Perennial Water
Rock Ou4crop
Saline Spot
Sandy Spot
Severely Eroded Spot
Sinkhole
Slide or Slip
Sodic Spot
Soil Map—Dare County, North Carolina
(Bonner Transmission Relocation - PINWR)
Spoil Area
Stony Spot
Very Stony Spot
Wet Spot
Otner
Special Line Features
Water Features
Streams and Canals
Transportation
� Rails
r!
:�
Interstate Highways
US Routes
Major Roads
Local Roads
Backgraund
� Aerfal Photography
�MAP INFORMATION
The soil surveys that comprise your AOI were mapped at
124, 000.
Warning: Soil Map msy not be valid at this scale.
Enlargement o# maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
scale.
Pl�ase rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resourcas Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Dare County, North Carolina
Survey Area Data: Version 16, Sep 19, 2016
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Data not available.
The orthophoto or other base mep on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
USUA Natural Resources Web Soil Survey 5/15/2017
� Conservation Service National Cooperative Soil Survey Page 2 of 3
Soil Map—Dare County, North Carolina
I�lap Unit Legend
Dare County, North Carolina (NC055)
Map Unit Symbol Map Unit Name Acres in AOI
CeA Carteret sand, 0#0 2 percent
slopes, frequently flooded
DW Duckston fine sand, 0 to 2
percent slopes, occasionally
flooded
Totals for Arsa of Interest
Bonner Transmission Relocation -
PINWR
I Percent of AOI
0.1 d.9%
B.B 99.1 %
B.6
100.0%
USD,a Natural Resources Web Soil Survey 5/15/2017
� Conservation Service National Cooperative Soil Survey Page 3 of 3
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4.0
ST�R_NTWATER I�'�ANAGEII�'�ENT AN�
E�(}S��N C(3N'�I��� D1�WINGS
17-8450-9005/I I I ��as �i iQ � I
� June 2017 ��>.�1�;� �['1:11a�ti
CONSTRUC110N SEQUENCE
5.0 OBTAIN ALL APPLICABLE PERMITS. CONTACT NCDEQ WASHINGTON REGIONAL LAND QUALITY AT 252-946-6481
PRIOR TO BEGINNING CONSTRUCTION.
5.1 BEFORE WORK BEGINS AT ANY SITE, THE CONTRACTOR WILL EVALUATE THE SITE WITH RESPECT TO EARTH
DISTURBANCE AND EROSION POTENTIAL. SENSITIVE AREAS ARE IDENTIFIED ON THE ENCLOSED PLAN DRAWINGS. THERE
WILL BE NO MECHANIZED CLEARING, GRADING, OR GRUBBING. ONLY HAND-CLEARING MAY BE UTILIZED WITH
EQUIPMENT SUCH AS CHAINSAWS AND SIMILAR SMALL DEVICES.
5.2 FLAG CONSTRUCTION LIMITS AND HAND CLEAR WHAT IS NECESSARY TO INSTALL TIMBER MATTING TO ACCESS
THE SUBSTATION AND INSTALL TEMPORARY PERIMETER FENCING.
5.3 INSTALL STORMWATER INSPECTION BOX WITH RAIN GAUGE, STORMWATER INSPECTION REPORT, AND A COPY OF
THE PERMITS AS INDICATED IN THE CONSTRUCTION NOTES IN THE ESCP DRAWING DETAILS. THE INSPECTION BOX
WILL BE PLACED ON THE OUTSIDE OF THE TEMPORARY FENCING AROUND THE CONSTRUCTION AREA. THE
SELF-INSPECTION RECORDS FOR LAND DISTURBING ACTIVITIES PER G. S. 113A-54.1 MUST BE COMPLETED WEEKLY
AND WITHIN 24 HOURS OF A� INCH OR GREATER RAINFALL EVENT. EXTRA COPIES OF THE SELF-INSPECTION
FORMS SHOULD BE PLACED IN THE INSPECTION BOX. SEE APPENDIX F OF THIS PLAN FOR A COPY OF THE FORM.
5.4 HAND CLEAR AS NECESSARY TO INSTALL COMPOST SOCKS, ADDITIONAL SILT FENCING AND SILT FENCE OUTLETS
WITHIN CONSTRUCTION LIMITS. ALL DEBRIS/SPOIL, TREES, AND SCRUB TO BE HAULED AWAY AND STORED AT A
NCDEQ APPROVED LOCATION.
5.5 INSTALL ANY REMAINING EROSION CONTROL MEASURES PRIOR TO ONSET OF LAND DISTURBING ACTIVITIES.
DISTURB ONLY WHATIS NECESSARY TO INSTALL THESE MEASURES. MAKE SURE TO PLACE SILT FENCE ON THREE
SIDES OF ANY STOCKPILED SOIL LEAVING ONE SIDE FREE FOR ACCESS. EROSION CONTROL MATTING THAT
INCORPORATES PLASTIC MESH AND/OR PLASTIC TWINE SHALL NOT BE USED ALONG STREAMBANKS OR WITHIN
WETLANDS.
5.6 IMMEDIATELY STABILIZE LAND-DISTURBING ACTIVITY WITH VEGETATIVE COVER USING THE FOLLOWING PERMANENT
SEED MIXTURES AT RATES OF 12 LBS PLS/ACRE WITH AN ADDITIONAL COVER CROP OF GRAIN RYE AT 30 LBS/ACRE.
CAPE HATTERAS GRASS SEED MIX VERSION 2
% of
Mix Latin Name Common Name Cultivar/
Ecotype
4 Agrostis hyemalis Winter Bentgrass NC
15 Elymus virginicus Virginia Wildrye Suther (NC)
5 Festuca rubra Creeping Red Fescue Commercial
5 Panicum amarum Coastal Panicgrass 'Atlantic'
Z� Panicum anceps Beaked Panicgrass SC
5 Panicum virgatum Switchgrass Carthage
38 Schizachyrium scoparium Little Bluestem NC
$ Sorghastrum elliottii Slender Indiangrass NC
100 Total
5.7 GROUND COVER SUFFICIENT TO RESTRAIN EROSION MUST BE PROVIDED IN THIS HQW ZONE WITHIN 7 DAYS. ALL
DISTURBED AREAS SHALL BE PROVIDED TEMPORARY OR PERMANENT STABILIZATION WITH GROUND COVER DAILY.
ONLY DISTURB THAT LENGTH WHICH CAN BE STABILIZED BY THE END OF THE DAY.
5.8 ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND IS MAINTAINED. ALL
DISTURBED AREAS WILL BE LIMED, FERTILIZED, OR RESEEDED AS NECESSARY ACCORDING TO THE RATES PROVIDED.
5.9 ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE INSPECTED WEEKLY AND AFTER EACH SIGNIFICANT
RAINFALL EVENT. NEEDED REPAIRS WILL BE MADE IMMEDIATELY AND INDICATED ON THE STORMWATER INSPECTION
FORMS KEPT IN INSPECTION BOX ON SITE. THE FOLLOWING ITEMS WILL BE CHECKED IN PARTICULAR:
5.9.1 THE SILT FENCING WILL BE CHECKED REGULARLY FOR FAILURES AND REPAIRED IMMEDIATELY. IF
SEDIMENT ACCUMULATES TO ONE-HALF (1/2) OF THE FENCE HEIGHT, THE SEDIMENT SHALL BE
REMOVED.
5.9.2ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND IS MAINTAINED.
AREAS WILL BE FERTILIZED AND RESEEDED AS NEEDED.
5.9.3ROADSIDE CULVERTS WILL BE CHECKED TO ENSURE THAT SEDIMENT HAS NOT ACCUMULATED IN
ACCUMULATED IN THE DITCH. IF S0, REMOVE THE SEDIMENT AND STABILIZE THE DITCH IMMEDIATELY.
5.9.41F SEDIMENT IS FOUND ON ROAD AT ANY TIME DURING CONSTRUCTION, IT WILL BE REMOVED
IMMEDIATELY.
5.10 THE FOLLOWING MUST BE KEPT ON SITE UNTIL THE ESCP PLAN HAS BEEN CLOSED OUT BY LAND QUALITY: 30
DAYS OF SELF-INSPECTION RECORDS, RAIN GAUGE, APPROVAL CERTIFICATE/LETTER, APPROVED PLAN AND NPDES
PERMIT. THESE ITEMS SHOULD BE LOCATED NEAR THE MAIN CONSTRUCTION ENTRANCE. FAILURE TO MAINTAIN
THESE ITEMS ON SITE VIOLATES THE NPDES PERMIT.
5.11 AFTER THE SITE IS STABILIZED, COORDINATE WITH NCDOT TO REMOVE/REPOSITION ALL TEMPORARY SEDIMENT
CONTROL MEASURES AND DETERMINE AREAS TO APPLY PERMANENT VEGETATION. AFTER THE SILT FENCES HAVE
BEEN CLEARED OF ACCUMULATED SEDIMENT, STABILIZE IMMEDIATELY WITH PERMANENT VEGETATION. ALL
ACCUMULATED SEDIMENT SHALL BE REMOVED OFF-SITE TO A NCDEQ PERMITTED LOCATION. THE SILT FENCING IS TO
REMAIN UNTIL ALL CONSTRUCTION IS COMPLETE AND PERMANENT VEGETATION IS ESTABLISHED. SILT FENCING TO BE
REMOVED BY OWNER.
5.12 ESTIMATED TIME BEFORE PHASE 1 FINAL STABILIZATION IS SIX (6) MONTHS. ESTIMATED TIME BEFORE PHASE 2
FINAL STABILIZATION IS TWELVE (12) MONTHS. ESTIMATED TIME BEFORE PHASE 3 FINAL STABILIZATION IS
TWENTY-FOUR (24) MONTHS.
DARE COUNTY, NC
DATE: 05/26/2017
GENERAL NOTES:
1
�
3.
VICINITY MAP
(N.T.S)
NCDEQ APPROVAL PENDING. CONTACT WASHINGTON REGIONAL OFFICE LAND QUALITY AT (252) 946-6481
PRIOR TO BEGINNING CONSTRUCTION.
DUCT BANK AND DIRECTIONAL BORE EQUIPMENT SHOWN IN THIS DRAWING IS PROPOSED AND FOR
ILLUSTRATIVE PURPOSES ONLY.
SITE INFORMATION OBTAINED FROM NORTH CAROLINA DEPARTMENT OF TRANSPORTATION PROJECT B-2500
RELEASED FOR CONSTRUCTION BRIDGE PLANS AND ROADWAY PLANS. (D-084R1 & D-085)
4. RECEIVING STREAMS: OREGON INLET (30-22-1), MOTTS CREEK (30-21-13), ROANOKE SOUND (30-21)
5. RECEIVING STREAM CLASSIFICATIONS: SA/HQW, SC, SA/HQW
6. RIVER BASIN: PASQUOTANK
7. TOTAL PROJECT AREA ABOVE MEAN HIGH WATER: 96,268 FT"2
8. TOTAL BUILT-UPON AREA: 7,305 FT"2
9. PARKING AND LAY DOWN TO BE LOCATED ON EXISTING NCDOT PROJECT B-2500 STAGING AREAS.
10. SEE ADDITIONAL PERMITTING & MAINTENANCE NOTES ON SHEETS ESCP4 - ESCP5.
11. CLARIFICATIONS CAN BE ADDRESSED BY CONTACTING MR. BILL JORDAN, P.E. AT BOOTH & ASSOCIATES, LLC.
EMAIL: JORDANWP@BOOTH-ASSOC.COM
PHONE:(919) 851-8770
SITE INFORMATION:
NOR7HERN SI7E INFORMA710N SOU7HERN SI7E INFORMA710N
OWNER: OWNER:
UNITED STATES GOVERNMENT UNITED STATES GOVERNMENT
DEPARTMENT OF THE INTERIOR DEPARTMENT OF THE INTERIOR
NATIONAL PARK SERVICE U.S. FISH AND WILDLIFE SERVICE
CAPE HATTERAS NATIONAL SEASHORE PEA ISLAND NATIONAL WILDLIFE REFUGE
PARCEL IDENTIFICATION #: 071 7006 851 22
DEED BOOK 79, PAGE 548
EXISTING SUBSTATION COORDINATES
35'47'58.2207"N
75'32'48.4633"W
PROJECT INFORMATION
PROJECT AREA: 1.47 ACRES
DISTURBED AREA: 1.30 ACRES
PARCEL IDENTIFICATION #: 074200340875
DEED BOOK 19. PAGE 451
PROPOSED TRANSMISSION STRUCTURE �12 COORDINATES
35'45'53.7268"N
75'31 '15.0904" W
PROJECT INFORMATION
PROJECT AREA: 0.74 ACRES
DISTURBED AREA: 0.26 ACRES
LEGEND:
•
m
O
13
i
�
TRANSMISSION STRUCTURE LOCATION - TO BE RETAINED
TRANSMISSION STRUCTURE LOCATION - TO BE REMOVED
TRANSMISSION STRUCTURE LOCATION - PROPOSED
TRANSMIS510N STRUCTURE NUMBER
GUY AND ANCHOR COMBINATION
PROPOSED CHEC PERMANENT UTILITY EASEMENT
x x
PROPOSED CHEC TEMPORARY CONSTRUCTION AREA - 0.17f Ac. (TOTAL)
x x - WITH TEMPORARY PERIMETER FENCE
EXISTING CHEC UTILITY EASEMENT - TO BE ABANDONED - 1.90f Ac.
�- -r -'� -r
CAMA WETLANDS
� � � �
w w w w
� � � � 404 WETLANDS
w w w w
0
SF SF
DRAIN FIELD
PROPOSED GRAVEL AREA
PROPOSED 115 kV ELECTRIC 10'W X 20'L VAULT
DISTURBANCE LIMIT
EXISTING NCDOT SILT FENCE
CENTERLINE OF EXISTING OVERHEAD 115 kV ELECTRIC (TO BE REMOVED)
CENTERLINE OF EXISTING OVERHEAD 115 kV ELECTRIC (TO BE RETAINED)
u6 UNDERGROUND 115 kV ELECTRIC (CHEC)
- TO BE INSTALLED
cu, UNDERGROUND COMMUNICATIONS
- TO BE INSTALLED
C
OVERHEAD 115 kV ELECTRIC (CHEC)
- TO BE INSTALLED
EDGE OF EXISTING HIGHWAY RIGHT OF WAY
O O COMPOST SOCK
WOODS/SCRUB LINE
� � � � � SUBSTATION PERIMETER FENCE
"""""""""""" PROPOSED TRANSMISSION STRUCTURE #12 SAFETY FENCE
� � EXISTING CONTOURS, 1FT INTERVAL
SHEET INDEX:
ESCP1
ESCP2
ESCP3
ESCP4
ESCP5
KNOW WHATS BELOW
ALWAYS CALL 811
BEFORE YOU DIG
IPs fast. IPs free. IPs the law.
COVER SHEET
EROSION AND SEDIMENT CONTROL PLAN
EROSION AND SEDIMENT CONTROL PLAN
EROSION AND SEDIMENT CONTROL DETAILS
EROSION AND SEDIMENT CONTROL DETAILS
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' ' ` SANITARY DRAIN FIELD
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DB 79 PG 548 _
US GOVERNMENT, � �
PROPOSED UTILITY VAULT �
. ,. � 10'W x 20' L x 7' D _ I
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/ / BANK DETAIL D D.
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DIRECTIONAL BORE � — — — � ��
DETAIL
A—A
N.T.S.
WARNIN
TAPE
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DUCT BANK DETAIL FOR ���
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N.T.S.
WARNIN
TAPE
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DUCT BANK DETAIL FOR ccc �
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\ / 'y� (NPS) EXISTING SUBSTATION
10 W x 25'L CONSTRUCTION PROPOSED 10' WIDE ACCESS FENCE TO BE REMOVED
ENTRANCE (SEE DETAIL ON ROAD AND 30' WIDE PERIMETER.
� SHEET ESCPS.) (PHASES I& II- TIMBER 15' SUBSTATION
MATTING, PHASE III- GRAVEL) �� FENCE EXTENSION
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LEGEND
PROPOSED CHEC PERMANENT UTILITY EASEMENT
x x
PROPOSED CHEC TEMPORARY CONSTRUCTION AREA
x x - WITH TEMPORARY PERIMETER FENCE
fi fi fi fi
CAMA WETLANDS
+ �- + �
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" " " " 404 WETLANDS
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DRAIN FIELD
PROPOSED GRAVELED AREA
Q PROPOSED 115 kV ELECTRIC 10'W X 20'L VAULT
EXAMPLE: TEMPORARY PERIMETER FENCE
/
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// �TEMPORARY HAND CLEARED
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�PACT
15'
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SF EXISTING NCDOT SILT FENCE
uG UNDERGROUND 115 kV ELECTRIC (CHEC)
- TO BE INSTALLED
cu, UNDERGROUND COMMUNICATIONS
- TO BE INSTALLED
--•--•- EDGE OF EXISTING HIGHWAY RIGHT OF WAY
O O COMPOST SOCK
WOODS/SCRUB LINE
� � � � � SUBSTATION PERIMETER FENCE
� � EXISTING CONTOURS, 1FT INTERVAL
wetland Impacts
Mitigable
Permanent Biotic
Site Station/Location Wetland
Fill (acres) Community
Impacts
404 W ETLAN D I MPACTS
0.150 0.150 Wetland man-
1 Substation Drive & Perimeter dominated
0.001 0.001 Maritime
Shrub Thicket
TOTAL PROJECT IMPACTS (ACRES): 0.151
WETLAND
(MARITIME SHRUB
THICKET) � w - `"
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\ � � ` SUBSTATION � REDUCED TEMPORARY
DB 79 PG 548 3 � 3 � PROPOSED +- 435' � � \ ONSTRUCTION AREA TO
US GOVERNMENT \ � � �3 30' 20� AVOID CAMA WETLANDS
- I PROPOSED f UNDERGROUND a M
� 10'L x 10'W x 5'D i OREGON ' DIRECTIONAL BORE "/ M �, o� WETLAND
DISTURBANCE LIMIT AND � I BORE PIT I \ ROAD � ¢ i��� (MAN-DOMINATED)
� EXISTING NCDOT SILT �
FENCE ALONG EDGE OF \/ 3/ \ � � � — �w
�'-� RIGHT-OF-WAY ' / PROPOSED TEMPORARY � �,
Z W_ W � � „ � �� I ' PERIMETER � __ N. T. S.
_ W -� -� �-. � / � *** SEE BLOW UP DETAIL *** ¢ P�P 6'L x 6'W x 5'D FENCE
� W "' — w- w W� W W� W� w w `" � � FOR WETLANDS INFORMATION . / �
_ . . PROPOSED � BORE PIT
C� �20' PUE ' _ �
� s / � EXISTING R/W � � - �
i nn t�� � / � c�r c� � c� r �� � � c�r
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12 N.C. HIGHWAY 12 2� � \
� 100' �
-. DISTURBANCE LIMIT ���/ '� � � �`r OREGON INLET
. , __ _
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_EGEND
� PROPOSED ACTIVE CIRCUIT CONDUCTOR IN CONDUIT
a PROPOSED SPARE CIRCUIT CONDUCTOR IN CONDUIT
O PROPOSED GROUNDING CONDUCTOR IN CONDUIT
� �� � ' - � - � � � -� M � � � / � DB 79 PG 548
�
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J � � � � , � � M � � �"� `�� M � -- - � - US GO,VERNMENT '1CIl�[lf� 1�1LA1V � 1�E
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US GOVERNMENT
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BONNER BRIDGE TRANSMISSION
CIRCUIT RELOCATION EROSION AND
SEDIMENT CONTROL PLAN
Booth & Associates, LLC
o�,e�Ry��,���s,z �o ER��� ��,
DWN. MCW DATE: 5/26/17 DWG. N0.
CKD. MEW APPD. WPJ 2 OF 5
SCALE:1" = 50' PLOT: 1:1 178450ESCP
wetland Impacts \
Hand Total l
wetland Biotic � ��
Site Station/Location Clearing . •-
Impacts Community \ 10R � ��-'
(acres) CAMA � -� �
(acres) WETLANDS _ � �� �'� ,
PEA ISLAND T,-' �� '
404 WETLAND IMPACTS � ' �� �� , ,
NATIONAL WILDLIFE REFUGE
�v (FWS) ��� �� - - , ��\�.�
Maritime � �� � '' �� � ��"
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1 Temporary Construction Areas 0.06 0.06 �_ �y y� i�^ _� -�, �-
Shrub/Grassland � x � ' �+ .,
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� SELECT � WARNING SELECT � o � - STRUCTURE � 3 ��� ���__- --" � %-�� � FENCE ALONG EDGE OF � � � � � -�� �� �/ � / ��
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TYPICAL TRENCH N1DTH CONSTRUCTION AREA 1 � " ' �l - �� — � �
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LEGEND 10' WIDE PUE � � • � � � � � � \ � �I
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LEGEND PEA ISLAND
NATIONAL WILDLIFE REFUGE CAMA
WETLANDS
• TRANSMISSION STRUCTURE LOCATION - TO BE RETAINED �FWS� EXISTING 50' WID PU <
TO BE ABANDONED ��
(STRUCTURES TO BE \ �z
m TRANSMISSION STRUCTURE LOCATION - TO BE REMOVED _ CHAINSAWED AND ��,
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13 TRANSMISSION STRUCTURE NUMBER o - -- _.�.�_ \ _ - - - � " - __ _ _ _ _ _ ___�__ \ US GOVERN�MENT \ � �
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<� PUE AT ORDINARY
PROPOSED CHEC PERMANENT UTILITY EASEMENT 1 \ '-- _ _ _ �_ -� _ � - -- .___ � � � HIGH WATER MARK
- - � DB 19 PG 451 EXISTING NCDOT SIL�T \ �� -�_T , -r��'\ �'F�j '--- -�
US GOVERNMENT ��� -�`- _ _ /
FENCE ALONG EDGE �- �—�'` '� - � "" j
x x OF RIGHT-OF-WAY ����` � F
PROPOSED CHEC TEMPORARY CONSTRUCTION AREA W PROPOSED 10' WIDE SF '� S� W SF
� x x� - WITH TEMPORARY PERIMETER FENCE z PUE ON BRIDGE � � SF PROPOS� `" ��-� W
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W W W W— ::. .., ,�� M_ M
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- TO BE INSTALLED
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cu, UNDERGROUND COMMUNICATIONS APPROVED STAGING AREA. SEE r'=so�
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S�' CAPE HATTERAS ELECTRIC COOPERAl1VE
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- TO BE INSTALLED �� � ``; �3" _ � ,�..,�, -:� �
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O O COMPOST SOCK r - -_. __�__ .�----�-
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WOODS/SCRUB LINE � �� M M "' e O�
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"""""""""""" PROPOSED TRANSMISSION STRUCTURE #12 SAFETY FENCE M DWN. MCW DATRil0�NC3J613 CON5uLT1NGENG1NEER5NCF-0221
� E:5/26/17 DWG. N0.
� � EXISTING CONTOURS, 1FT INTERVAL ' �
EXAMPLE: TEMPORARY PERIMETER FENCE w� W CKD. MEW APPD. WPJ 3 OF 5
Qc 5 17 N0. REVISIONS DATE SCALE:1" = 50' PLOT: 1:1 178450ESCP
Practice Standards and Specifications P�actice Standards and Specifications P�actice Standa�ds and Specifications Practice Standards and Specifications
6.66 •'• • • Check dams Compost Sock Conventional Product Description Example
• Along the toe of stream and channel banks BMP Application Compost socks may be used as check dams in ditches not exceeding 3 feet in
C • Around area drains or inlets located in a storm drain system depth. Normally, 8 to 12 inch diameter socks should be used. Be sure to stake
� Silt Socks Silt Fence (on A 3-dimensional "� ���' �'� --� the sock e endicular to the slo e of the ditch. When used as checic dams
. . • Around sensitive trees where trenching of silt fence is not beneficial for tree �� ��- ���.�. ���� � � p� p '
�@flnit1011 A com post sock is a three-dimensional tubular sediment control and storm water smaller areas) sediment control -��� _ i n s t a l l a t i o n s h o u l d b e s i m i l a r t o t h a t o f n a t u r a l f i b e r w a t t l e s. T h e e n d s a n d
runoff device t icall used for erimeter control of sediment and soluble survival or ma unnecessaril disturb established ve etation. measure used for �; ��" .����� ���
yp y p � y y g � ��� y� � middle of the sock should be staked, and additional stakes placed at a 2-foot
On paved surfaces where trenching of silt fence is impossible. sediment removal ������ '
pollutants (such as phosphorous and petroleum hydrocarbon), on and around �`"�� - �. maximum interval. See Table 6.66b for spacing.
construction activities. Compost socks trap sediment and other pollutants in . �����
A compost sock can be applied to areas of sheet runoff, on slopes up to a 2:1
runoff water as it passes through the matrix of the sock and by allowing water to grade with a maximum height o� 10 feet, around inlets, and in other disturbed ` . ���`���_ _ �@Slgn Crlterla The sediment and pollutant removal process characteristic to a compost sock
temporarily pond behind the sock, allowing deposition of suspended solids. --�- _��
areas of construction sites requiring sediment control. Compost socks may also _ �� � allows deposition of set�ling solids. Ponding occurs when water flowing to the
Compost socks are also used to reduce runoff flow velocities on sloped surfaces. be used in sensitive environmental areas, or where trenching may damage roots. � _ sock accumulates faster than the hydraulic flow through rate of the sock.
Compost products acceptable for this application should meet the chemical, „ s _ _- Typically, initial hydraulic flow-through rates for a compost sock are 50%
The weight of a filled sock (40 lbs / linear ft. for 8 diameter) effectively �_��_ � __ _ greater than geotextile fabric (silt fence). However, installation and maintenance
physical and biological properties specified for Practice 6.18, Compost Blankets. revents sediment mi ration beneath the sock. It is ossible to drive over a �=.����� ���-�- �� �'� � �=��' -�`� is es eciall im ortant for ro er function and erformance. Desi n
p g P Inlet Socks Inlet Designed to allow - �-�� f - ,;��.,.� ,,�_ p y p p p p g
compost sock during construction (although not recommended); however, these � �� � � `'`���" � .'�� "� �� � � `�--
Protection stormwater to enter �� ��� - ,� �- consideration should be given to the duration of the proj ect, total area of
areas should be immediately repaired by manually moving the sock back into inlets while removing ��"''��`�� ��'� `- �, �� �°�: � � disturbance, rainfall/runoff potential, soil erosion potential, and sediment loading
,,���'����_ �'� �,�` �"� �. _� ,�� ���� •� �� r, ,,�� y� place, if disturbed. Continued heavy construction traffic may destroy the fabric sediment and protecting � �� �� �_ when specifying a compost sock.
�k � �. "u � � �?'� _ �s ,��'� �`�° " , � �� � ,- � +, F �� - -
� �,ti . .. �, � �r �,,: �� ,� mesh, reduce the dimensions, and reduce the effectiveness of the compost sock. inlets from clogging �- -
"��� -�' �_�- � � - » ; ; � •� ` ��,'��; " ��M,� ��' � `, �. Vegetating the compost sock should be considered. — - - _ - Runoff Flow:
r 4 � I ��- � �.�.� �I � ��� � ��-M I } u ( � � . � `+ . f: '.�'�ir . �
. ' .
.
- r . ' �- .' �', "'� ` �� ,� � ,, �"'�� „ �,z � � ' � � The depth of runoff ponded above the compost sock should not exceed the height
y. .r �- . ,.;.<R . -
. , y '� �u " , A' , _ • . � i . �'� , � "� `.
. _ . . . . " '^ a 1:s-P";
--= �- � e„� <�;, �` �" �r .. ^, � P�aClnlllg Compost socks shall either be made on site or delivered to the jobsite F� �:; `- - -�- of the compost sock. If overflow of the device is a possibility, a larger diameter
, ., : ` .. � � _ �, � � �;� r, �' �!
� - - -- �"''° '- `,�-'`-: Considerations assembled. The sock shall be produced from a 5 mil thick continuous ��``�-_ , sock should be constructed, other sediment control devices may be used, or
_ ,. `.���,�� �" -: ' - . :
� -'.� _ ���r �'� �.� ���, , ��" HDPE or polypropylene, woven into a tubular mesh netting material, with - ����.: management practices to reduce runoff should be installed. Alternatively, a
°°- w- "�� i openings in the knitted mesh of '/g" - 3/8� (3-lOmm). This shall then be filled with second sock may be constructed or used in combination with Practice 6.17
, � � ��; ,
i � nn �T
�-� �� ���'�� �� ��� �, ��`� #��� ��� compost meeting the specifications outlined in Practice 6.18, Compost Blankets, Rolled Erosion Cont�ol Products or Practice 6.18, Compost Blankets to slow
„- �"; b ���' �� " _ �- .� . '� �� . _ : .� -. ; � � ; k
,�, .�� ,� �� ' with the exception of particle size, to the diameter of the sock. Compost sock Ditch Check Rock Check Contours to ditch shape � ���•µ ���-. runoff and reduce erosion.
�,'" . i ,. � . "
�� � � ._ ��" �� , , � � netting materials are also available in biodegradable plastics for areas where Dams and eliminates gullies � � ``�"� '�-�� �1 � � �
, 1 . *, � " ,�, f - . �
��� .°' .� i removal and disposal are not desired (i.e., when using pre-seeded socks). . Level Contour:
.� a
ti�� �' '_ �=,�'` �� Compost socks contain the compost, maintaining its density and shape. ���-�:� �•-� �� � " The compost sock should be placed on level contours to assist in dissipating low
`,� � � r�' , m °� � � „� �_� �_" concentrated flow into sheet flow and reducing runoff flow velocity. Do not
R � a � � � � � �� � � :
� �'�� � " � � Compost socks should be installed parallel to the base of the slope or other -��°����� _���" �- ��� construct compost socks to concentrate runoff or channel water. Sheet flow of
:� , . .� � � ,b , � � —� ,: , , .
�.�_��j' �, ' t�� ,,, � affected area e endicular to sheet flow. The sock should be installed a �����_�-� �. � � �� _ water should be perpendicular to the sock at impact and un-concentrated.
. +� .� � � P � �' � r w -.�
� �, � - �,����'.� � �_, minimum of 10 feet beyond the top of graded slopes. When runoff flows onto '� ''� � �, w Placing compost socks on undisturbed soil will reduce the potential for
. � .� .; J
�4. ` T - �� +� .a �� _ . - the disturbed area from a land above the work zone a second sock may be � ��, �:. � --� undermining by concentrated runoff flows.
- �� - � � . �, _ �, ,.� � .
_� �"� �` � constructed at the top of the slope in order to dissipate flows. �'�?�` �`� ` '�� -:"�.
"'���`'�� -- - • _ - �` " '���� �` � Runoff and Sediment Accumulation:
Figure 6.66a — Compost Sock On locations where greater than a 200-foot long section of ground is to be treated Table 6.66a Compost Sock BMPs as Replacements for Current Erosion Control Practices The compost sock should be placed at a 10 foot minimum distance away from the
Photo Credit — Filtrexx International with a compost sock, the sock lengths should be sleeved. After one sock section Photo credits: Filtrexx International toe of the slope to allow for proper runoff accumulation for sediment deposition
(200 feet) is filled and tied off (knotted) or zip tied, the second sock section shall and to allow for maximum sediment storage capacity behind the device. On flat
COndItlOflS �/�/ilerE: Compost socks are to be installed down slope of disturbed areas requiring be pulled over the first 1-2 feet and 'sleeved' creating an overlap. Once After filling, the coinpost sock must be staked in place. Oak or other durable areas, the sock should be placed at the edge of the land-disturbance.
Pi"aCtlCe App�l@S erosion and sediment control. Compost socks are effective when installed overlapped, the second section is filled with compost starting at the sleeved area hardwood stakes 2"x 2" in cross section should be driven vertically plumb,
perpendicular to sheet flow, in areas where sediment accumulation of less to create a seamless appearance. The socks may be staked at the overlapped area through the center of the compost sock. Stakes should be placed at a maximum End Around Flow:
than six inches is anticipated. Acceptable applications include (Fifield, (where the sleeve is) to keep the sections together. Sleeving at the join�s is interval of 4 feet, or a maximum interval of 8 feet if the sock is placed in a 4 inch In order to prevent water flowing around the ends of the compost sock, the ends
2001): necessary because it reduces the opportunity for water to penetrate the joints trench. See Figure 6.66b. The stakes should be driven to a minimum depth of 12 of the sock must be constructed pointing upslope so the ends are at a higher
when installed in the field. inches, with a minimum of 3 inches protruding above the compost sock. elevation. A minimum of 10 linear feet at each end placed at a 30 degree angle is
• Site perimeters
recommended.
• Below disturbed areas subject to sheet runoff, with minor sheet or rill If the compost sock is to be left as part of the natural landscape, it may be seeded
erosion. Compost socks should not be used alone below graded slopes at time of installation for establishment of permanent vegetation using the
greater than 10 feet in height. seeding specification in the erosion and sedimentation control plan. A maximum
• Above graded slopes to serve as a diversion berm. life of 2 years for photodegradable netting and 6 months for biodegradable
netting should be used for planning purposes.
ue�. sii3 6.66.1 6.66.2 xe�. si13 u��. si� 3 6.66.3 6.66.4 Re�. si13
Practice Standards and Specifications P�actice Standards and Specifications Practice Standards and Specifications Practice Standards and Specifications
Vegetated Compost Sock: This specification covers compost produced from various organic by-products, should be driven to a minimum depth of 12 inches, with a minimum of 3
For permanent areas the compost sock can be directly seeded to allow vegetation for use as an erosion and sediment control measure on sloped areas. The inches protruding above the compost sock.
established directly on the device. Vegetation on and around the compost sock product's parameters will vary based on whether vegetation will be established ��rr,�,o�t s�c�c ���_�,�,�,�t ,{,��
will assist in slowing runoff velocity for increased deposition of pollutants. The on the treated slope. Only compost products that meet all applicable state and 7. In the event staking is not possible (i.e., when socks are used on pavement) � i t�. � �� ���� r� ��
►--.; _ -
option of adding vegetation should be shown on the erosion and sedimeniation federal regulations pertaining to its production and distribution may be used in heavy concrete blocks shall be used behind the sock to hold it in place during F�,��,�, a�f�To �E ���,� I ����������
control plan. No additional soil amendments or fertilizer are required for this application. Approved compost products must meet related state and federal runoff events. �-�- ���;TE�TEa ��
,�-`-��_�,���.
vegetation establishment in the vegetated compost sock. chemical contaminant (e.g., heavy metals, pesticides, etc.) and pathogen limit �. � �; �� �
standards ertainin to the feedstocks source materials in which it are derived. 8. If the com ost sock is to be left as art of the natural landsca e it ma be �� �� �r�� �� � �� �� ���°' �
P g � � P p p� Y 2inx2ir� Zinx2i�
Slope Spacing & Drainage Area: seeded at time of installation for establishment of permanent vegetation using ������ �T��E�
Maximum drainage area to and spacing between the compost socks is dependent In regions subjected to higher rates of precipitation and/or greater rainfall the seeding specification in the erosion and sedimentation control plan.
on rainfall intensity and duration used for specific design/plan, slope steepness, intensity, larger compost socks should be used. In these particular regions, SE� CIC1P�1 SECTI�N
and width of area draining to the sock. coarser compost products are preferred as the compost sock must allow for an 9. Compost socks are not to be used in perennial or intermittent streams.
improved water percolation rate. The designer should check the flow rate per
torm ater does not br ak t rou�h at thet ntersection o ocks ula ed end-to-endt ade u te� he rerde�ed fl w rat sra e outl ed in Table 6 66c. sock being used is MalntellanCe Inspect compost socks weekly and after each significant rainfall event (1/2 inch ��-� N��`�' �� �� �.� �P�'
Ends are jointed together by slee ing one sock end into the other. The diameter � � or greater). Remove accumulated sediment and any debris. The compost sock `�'
must be re laced if clo ed or torn. If ondin becomes excessive the sock ma �- �
of the compost sock used will vary depending upon the steepness and length of Table 6.66c — Compost Sock Initial Flow Rates p gg p g ' y '�� �t�
the slope; example slopes and slope lengths used with different diameter compost need to be replaced with a larger diameter or a different measure. The sock
socks are presented in Table 6.66b. Compost Sock 8 inch 12 inch 18 inch 24 inch 32 inch needs to be reinstalled if undermined or dislodged. The compost sock shall be � ��`��• �,.
Desi n Diameter (200mm) (300mm) (450mm) (600mm) (800mm) inspected until land disturbance is complete and the area above the measure has �RENCF-I INT� ����� � ��
Table 6.66b - Com ost Sock S acin versus Channel Slo e Maximum Slope 600 ft 750 ft 1,000 ft 1,300 ft 1,650 ft been permanently stabilized. ��o�ND
p p g p Len th (<2%) (183m) (229m) (305m) (396m) (SOOm) � ��• ���• �
Channel Slope (%) Spacing Between Socks (feet) H draulic Flow 7.5 m/ft 11.3 m/ft 15.0 m/ft 22.5 m/ft 30.0 m/ft DISPOSAL/RECYCLING w��a r�u�cH �c�R �ar��ns�
8-inch Diameter Sock 12-inch Diameter Sock y gp gp gp gp gp
Through Rate (941/m/m) (141 Um/m) (188 Um/m) (281 Um/m) (374 1/m/m) Compost media is a composted organic product recycled and manufactured from ��' ��� H6E1�"�°F ���
1 67 100 Source: B. Faucette-2010 locall enerated or anic natural and biolo icall based materials. Once all soil �
2 33 50 y g g � � g y IJNTREl1lCHED IN57ALLATI�N QR ENTF�ENCHEQ CI'�STALLp►TIC]'�U
has been stabilized and construction activity has been completed, the compost *TH15 APPLf�l�,TIC1N E�/lAY RIOT BE uSE�
3 22 33 Construction INSTALLATION media may be dispersed with a loader, rake, bulldozer or similar device and may WITH CC)i1,�1PC]5� SC1CK� SMALLER THAC� 12 IIV_
4 17 25 be incorporated into the soil as an amendment or left on the soil surface to aid in
5 13 Zp Sp@CIfICatIOnS 1. Materials used in the compost sock must meet the specifications outlined IS� f�li ETRIG Ill EW
above and in Practice 6.18, Compost Blankets. permanent seeding or landscaping. Leaving the compost media on site reduces
Source: B. Faucette — 2010 removal and disposal costs compared to other sediment control devices. The
2. Compost socks should be located as shown on the erosion and sedimentation mesh netting material will be extracted from the media and disposed of properly.
MateriaL• The photodegradable mesh netting material will degrade in 2 to 5 years if left on
The com ost media shall be derived from well-decom osed or anic matter control plan. �u�c►, �r� ��rr,�ost
p p g site. Biodegradable mesh netting material is available and does not need io be
source produced by controlled aerobic (biological) decomposition that has been extracted and disposed of, as it will completely decompose in approximately 6 to ��r ��ntr�n�hec� ��c�s
sanitized throu h the eneration of heat and stabilized to the oint that it is 3. Prior to installation, clear all obstructions including rocks, clods, and other
g g p 12 months. Using biodegradable compost socks completely eliminates the need ���� T� �E
a ro riate for this articular a lication. Com ost material sha11 be rocessed debris greater than one inch that may interfere with proper function of the ��������c�
pp p p pp p p com ost sock. and cost of removal and disposal.
through proper thermophilic composting, meeting the US Environmental p ��,�zt F�Qw
Protection Agency's definition for a`Process to Further Reduce Pathogens' ����'���� �°��
(PFRP), as defined at 40 CFR Part 503. The compost portion shall meet the 4. Compost socks should be installed parallel to the toe of a graded slope, a
chemical, physical and biological properties specified in Practice 6.18, Compost minimum of 10 feet beyond the toe of the slope. Socks located below flat
Blankets Table 6.18a, with the exception of particle size. Slightly more coarse areas should be located at the edge of the land-disturbance. The ends of the '�'�'�'�"� �����
compost is recommended for the socks, as follows: socks should be turned slightly up slope to prevent runoff from going around
the end of the socks.
Particle Size Distribution
Sieve Size Percent Passing Selected Sieve Mesh Size, Dry Weight Basis 5. Fill sock netting uniformly with compost to the desired length such that logs
2" 99 %(3" Maximum Particle Size) do not deform. ���� Maryland Standards and Specifications
3/8" 30-50 %
for Soil Erosion and Sediment Control,
6. Oak or other durable hardwood stakes 2" X 2" in cross section should be 2011, Maryland Department of
See Practice 6.18, Compost Blankets for complete information on compost driven vertically plumb, through the center of the compost sock. Stakes
should be laced at a maximum interval of 4 feet, or a maximum interval of 8 Environment, Water Management
parameters and tests. Installer should provide documentation to support p FI ure 6.66b Com ost Sock Installation Administration
compliance of testing required in the compost specification. feet if the sock is placed in a 4 inch trench. See Figure 6.66b. The stakes 9 P
Rev. 5/13 6.66.5 6.66.6 Rev. 5/13 Rev. 5/13 6.66.7 6.66.8 1zev. 5/13
COMPOST SOCK DETAILS
N.T.S.
7I°]H[�� ]��[s��T 7I°� ��
1�77I°��[s���� ]��]E� ��7I°� ����[s
��T� �]E������T ���T7I°]E���[s
]��J]E�]����� ��T]C,�I'
GENERAL CONS7RUC710N N07ES Ac MAIN7ENANCE
6.1 UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL
PRACTICES WILL BE CONSTRUCTED AND MAINTAWED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS
OF THE NORTH CAROLINA EROSION AN� SEDIMENT CON7ROL PLANNING AND DESIGN MANUAL.
6.2 ADDITIONALLY, THE FOLLOWING STANDARDS FOR SENSITIVE WATERSHEDS WILL BE IMPLEMENTED:
6.21 VEGETATIVE ROOT SYSTEMS SHALL BE LEFT INTACT TO MAINTAIN THE INTEGRITY OF THE SOIL.
6.22 RIP RAP SHALL NOT BE USED.
6.2.3 APPLICATION OF FERTILIZER TO ESTABLISH PLANTED/ SEEDED VEGETATION WITHIN DISTURBED
RIPARIAN AREAS AN�/ OR WETLANDS SHALL BE CON�UCTE� AT AGRONOMIC RATES AND SHALL COMPLY
WITH ALL OTHER FEDERAL, STATE AND LOCAL REGULATIONS FERTILIZER APPLICATION SHALL BE
ACCOMPLISHED IN A MANNER THAT MINIMIZES THE RISK OF CONTACT BETWEEN THE FERTILIZER AND
SURFACE WATERS. NO HERBICIDES WILL BE USED IN MAINTENANCE OF EASEMENT.
6.24 CONSTRUCTION ACTIVITIES SHALL MINIMIZE THE REMOVAL OF VEGETATION, THE EXTENT OF THE
DISTURBED AREA, AND THE TIME IN WHICH AREAS REMAIN IN A DISTURBED STATE IN WETLAN�S,
MATS SHALL BE UTILIZED TO MINIMIZE SOIL DISTURBANCE.
6.25 CONCRETE IS USED DURING CONSTRUCTION OF OPEN TRENCH DUCT BANK INSTALLATION. ALL
NECESSARY MEASURES SHALL BE TAKEN TO PREVENT DIRECT CONTACT BETWEEN UNCURED OR CURING
CONCRETE AND WATERS OF THE STATE WATER INSIDE COFFER DAMS OR CASINGS THAT HAS BEEN IN
CONTACT WITH WET CONCRETE SHALL BE PUMPED INTO FILTER BAGS AND CAN BE DISCHARGED ON
UPLAN�S AFTER THE CONCRETE IS SET AN� CURED.
6.26 ALL MECHANIZED EQUIPMENT OPERATED NEAR SURFACE WATERS SHALL BE INSPECTED AND
MAINTAWE� REGULARLY TO PREVENT CONTAMINATION OF SURFACE WA7ER5 FROM FUELS, W BRICANTS,
HYDRAULIC FWIDS, OR OTHER TOXIC MATERIALS. CONSTRUCTION SHALL BE STAGED IN ORDER TO MINIMIZE
THE EXPOSURE OF EQUIPMENT TO SURFACE WATERS TO THE MAXIMUM EXTENT PRACTICABLE. FUELING,
WBRICATION AND GENERAL EQUIPMENT MAINTENANCE SHALL NOT TAKE PLACE WITHIN 50 FEET OF A
WATERBODY OR WETLANDS TO PREVENT CONTAMINATION BY FUELS AND OILS.
6.2J ACTIVE MEASURES SHALL BE TAKEN AFTER CONSTRUCTION AND DURING ROUTWE MAINTENANCE TO
ENSURE DIFFUSE FLOW OF STORMWATER.
6.3 IT IS THE RESPONSIBILITY OF THE CONTRACTOR TO PERFORM ALL NECESSARY MAINTENANCE DURING
CONSTRUCTION. ONCE CONSTRUCTION IS COMPLETE, THE OWNER WILL ASSUME MAINTENANCE RESPONSIBILITIES.
6.4 THE CONTRACTOR SHALL BE RESPONSIBLE FOR STABILIZING THE WORK SITE BEFORE MOVING TO THE NEXT
LOCATION. AREAS DAMAGED DURING CONSTRUCTION ACTIVITIES SHALL HAVE NECESSARY ADDITIONAL EROSION
AND SEDIMENTATION CONTROL MEASURES.
6.5 ALL MORATORIUMS ON CONSTRUCTION ACTIVITIES ESTABLISHED BY THE NC WILDLIFE RESOURCES
COMMISSION (WRC), US FISH AND WIL�LIFE SERVICE (USFWS), NC DIVISION OF MARWE FISHERIES (DMF), OR
NATIONAL MARWE FISHERIES SERVICE (NMFS) SHALL BE IMPLEMENTED. EXCEPTIONS TO THIS CONDITION REQUIRE
WRITTEN APPROVAL BY THE RESOURCE AGENCY RESPONSIBLE FOR THE GIVEN MORATORIUM. A COPY OF THE
APPROVAL FROM THE RESOURCE AGENCY SHALL BE FORWARDED TO DWR.
6.6 A PRECONSTRUCTION MEETING IS REQUIRED 30 DAYS PRIOR TO THE START DATE TO REVIEW PERMITTING
CONDITIONS SUCH AS:
6.6.1 THE EXTERIOR AND UNDERSIDE OF ALL VEHICLES AND MATTING MUST BE STEAMED OR POWER
WASHED OUTSIDE OF PARK PROPERTY TO BE FREE OF WEEDS, SEED, DEBRIS AND MUD TO PREVENT
THE INTRODUCTION AND/OR SPREAD OF EXOTIC,INVASIVE PLANTS.
6.62 THE REFUGE MANAGERS SHALL BE CONTACTED BEFORE ANY SURFACE WORK IS DONE INCLUDING
MOWING, DIGGING, CLEARING OR TRIMMING VEGETATION, INSTALLATION OF STRUCTURES, ETC.
6.6.3 THE POINT OF CONTACT (POC) WILL DIRECT ANY INQUIRIES AND COMMUNICATIONS TO THE PARK
DURING �AILY OPERATIONS.
6.6.4 VEHICLES AND EQUIPMENT MUST NOT INTERFERE WITH OR IMPEDE ROUTWE VISITOR TRAFFIC OR
USE OF PARK RESOURCES.
6.6.5 THE ONLY ITEMS THAT WILL BE ALLOWED WITHIN THE RIGHTS—OF—WAY AND EASEMENTS WILL BE
EQUIPMENT AND MATERIALS NECESSARY FOR ONGOING WORK AT THAT TIME. NO UNUSED EQUIPMENT
OR MATERIAL WILL BE LEFT IN THE AREA FOR EXTENDED DURATIONS. ALL MATERIAL AND EqUIPMENT
NOT IN USE AT THE SITE WILL BE STAGED ONLY IN DESIGNATED STAGING AREAS APPROVED BY THE
PARK.
6.6.6 A MEETING BETWEEN THE PARK AND PERMITTEE REPRESENTATIVES MUST OCCUR ON—SITE TO
REVIEW AND APPROVE MATERIALS AND ACCEPTABLE PLANT SPECIES PRIOR TO PLANTING VEGETATIVE
COVER ON THE ROAD SHOIJLDER.
6.6J ANY WATER DISCHARGE PIPING SHALL BE LAID AND REMOVED BY HAND. THE SPECIFIC LOCATION
OF PIPING AN� �ISCHARGE WILL BE NEGOTIATED AN� APPROVE� IN ADVANCE �URING AN ON—SITE
MEETING BETWEEN THE PERMITTEE AND PARK REPRESENTATIVE.
6.6.8 AN ON—SITE MEETING IS REQUIRED IMMEDIATELY PRIOR TO THE START OF CONSTRUCTION
BETWEEN REPRESENTATIVES OF THE PARK, THE CONSTRUCTION/MAINTENANCE SUPERVISORS, AND
CONTRACTOR REPRESENTATIVES TO DETERMWE AND CLARIFY SCOPE OF THE PROJECT. THE
CONSTRUCTION MAINTENANCE SUPERVISORS WILL CONTACT THE DISTRICT RANGER ON THE MORNING OF
THE FIRST AND LAST DAY OF WORK, ADVISING THE LOCATION AND EXTENT OF WORK CREWS AND
EQUIPMENT IN THE PARK.
6.6.9 CONTRACTORS/SUBCONTRACTORS WILL COORDINATE WITH THE PERMITTEE AND PARK STAFF TO
REDUCE DISRUPTION OF NORMAL PARK ACTIVITIES. AT LEAST 48—HOURS PRIOR TO THE ARRIVAL OF
HEAVY CONSTRUCTION EqUIPMENT, CONTRACTORS WILL NOTIFY THE PARK'S POC AND DISTRICT RANGER
TO MINIMIZE TRAFFIC DELAYS THAT MAY OCCUR AS TRAILERS CARRYING EQUIPMENT TURN OFF HIGHWAY
12 OR ACCESS OTHER AREAS OF THE PARK.
6.6.10 REFER TO THE PARK'S ANNUAL HURRICANE PLAN FOR AN OUTLWE OF STEPS TO BE TAKEN
UNDER CERTAIN STORM EVENTS AND EVACUATIONS. THE TERMS AND CONDITIONS OF THIS PLAN AND
ALL DIRECTIVES ISSUE� BY THE INCIDENT COMMAND MUST BE FOLLOWE�.
TOP OF SILT FENCE
MUST BE AT LEAST 1
ABOVE THE TOP OF
rHE wnsHEo sroNE
WIRE FI
HARDWARE CLOTH
STONE MUST BE
NO LE55 THAN
ifi' IN HEIGHT
RLTER OF $57 �
WASHED STONE
BURY WIRE FENCE AND
HARDWARE CLOTH
10' M I
HARDWARE CLOTH FRONT VIEW
STEEL FENCE POST
3' RLTER FABRIC
ON GROUND
� �
STEEL FENCE POST
SET MAX 2' APART
MIN. 18" INTO SOLI�
GROUND
SILT FENCE
6.6 CONTINUED
6.6.11 FROM MAY 1 THROUGH NOVEMBER 15, ALL LIGHTING ASSOCIATED WITH THE PROJECT SHALL BE
LIMITED TO THE IMMEDIATE AREA OF ACTIVE CONSTRUCTION ONLY AND SHALL BE THE MINIMAL LIGHTING
NECESSARY TO COMPLY WI7H SAFETY REQUIREMENTS. ONLY LIGHTS APPROVE� IN THE BIOLOGICAL
OPINION AND SUBSEqUENT SECTION 7 CONSULTATIONS ARE REQUIRED TO MINIMIZE ILLUMINATION OF
THE NESTING BEACH AND NEARSHORE WATERS. SHIELDED LOW PRESSURE SODIUM VAPOR LIGHTS ARE
HIGHLY RECOMMENDED FOR LIGHTS ON OFFSHORE EQUIPMENT.
6.6.12 DISCOVERY OF PREVIOUSLY UNKNOWN REMAINS AND ARTIFACTS REQUIRES HALTING CONSTRUCTION
AND MUST IMMEDIATELY BE REPORTED TO THE PARK'S CULTURAL RESOURCE SPECIALIST
252-475-9021 AND DISTRICT ENGWEER 252-475-8308. THE DISTRICT ENGWEER WILL INITIATE
THE FEDERAL, TRIBAL, AND STATE COORDINATION REQUIRED TO DETERMWE IF THE ITEMS OR REMAINS
WARRANT A RECOVERY EFFORT OR IF THE SITE IS ELIGIBLE FOR LISTING IN THE NATIONAL REGISTER OF
HISTORIC PLACES.
6.6.13 CONTRACTORS MUST IDENTIFY ALL AREAS TO BE USED TO BORROW MATERIAL, OR TO DISPOSE OF
FILL OR WASTE MA7ERIAL FOR APPROVAL BY PERMITTEE AN� USACE TO ENSURE THAT ALL BORROW AND
WASTE ACTIVITIES OCCUR ON HIGH GROUND AND DO NOT RESULT IN THE DEGRADATION OF ADJACENT
WETLANDS AND STREAMS.
6.6.14 CONTRACTORS AND AGENTS MUST COMPLY WITH THE TERMS AND CONDITIONS OF ALL PERMITS
OBTAWED BY NCDOT FOR PHASE I OF TIP B-2500 AND CAPE HATTERAS ELECTRIC COOPERATIVE FOR
THIS WORK. COPIES OF THESE PERMITS, INCLUDING CONDITIONS, SHALL BE AVAILABLE AT THE PROJECT
SITE DURING CONSTRUCTION AND MAINTENANCE OF THIS PROJECT.
BURY WIRE FENCE, �,
RLTER FABRIC,
AND HARDWARE
CLOTH IN TRENCH �
��� sicNFicnNrNRANFn�� EVENT (i/z wcHNORACREnrER)H
BURY 6° OF UPPER EDGE OF CLEAR MESH WIRE OF DE6R15 OR OTHER OBJECTS TO
RLTER FABRIC IN TRENCH PROVIDE ADEQUATE FLOW FOR SUBSEQUENT RAINS. TAKE
u CARE NOT TO �AMAGE OR UN�ERCl1T THE WIRE MESH
Dl1RING SEDIMENT REMOVAL REPLACE STONE AS NEEDED.
sEcrioN viEw ST/WDARD SILT FENCE OU7LET
N.r.s.
FILTER BAG
FLOW
�" _
PUMP DISCHARGE HOSE
FLOW
�" _
STRAP
�.: E
STANDARD SYMBOL
�Fe
— ��oed �^ —
�� �i
RLTER BAG I a _
a ��
°i
daa �i i �
°� a , eaeoa �Da � �,,. _
a°8a'° aac8°°O� a aa a
12 IN MIN.
MULCH, LEAF�WOOD COMPOST,
P�QN VIEV�I WOO�CHIPS, OR SAND.
SLOPE
59 MAX.
ELEVATION � FILTER BAG
8 IN MIN.
CONSTRUCTION SPECIFICATIONS
1. TIGHTLY SEAL SLEEVE AROUND THE PUMP DISCHARGE HOSE WITH A STRAP OR SIMILAR DEVICE.
2 PLACE RLTER BAG ON SUITABLE BASE (E.G., MULCH, LEAF/WOOD COMPOST, WOODCHIPS, OR SAND)
LOCATED ON A LEVEL OR 5� MAXIMUM SLOPING SURFACE DISCHARGE TO A STABILIZED AREA EXTEND
BASE A MINIMUM OF 12 INCHES FROM EDGES OF BAG.
3. CONTROL PUMPING RATE TO PREVENT EXCESSNE PRESSURE WITHIN THE RLTER BAG IN ACCORDANCE
WITH THE MANUFACTURER RECOMMENDATIONS. AS THE BAG FILLS WITH SEDIMENT, REDUCE PUMPING
RATE.
4. REMOVE AND PROPERLY �ISPOSE OF FILTER BAG UPON COMPLETION OF PUMPING OPERATIONS OR
AFTER BAG HAS REACHED CAPACITY, WHICHEVER OCCURS FIRST. SPREA� THE OEWATERE� SEDIMENT
FROM rHE eac iN nN nPPRovEo uP�nNo nREn allo srneiuzE wirH sEEo allo mu�cH er rHE ENo
OF THE WORK DAY. RESTORE THE SURFACE AREA BENEATH THE BAG TO ORIGINAL CONDITION UPON
REMOVAL OF THE DEVICE.
5. USE NONWOVEN GEOTEXTILE WITH DOUBLE STITCHED SEAMS USING HIGH STRENGTH THREAD. SIZE
SLEEVE TO ACCOMMODATE A MAXIMUM 4 INCH DIAMETER PUMP DISCHARGE HOSE. THE BAG MUST BE
MANUFACTURED FROM A NONWOVEN GEOTEXTILE THAT MEETS OR EXCEEDS MINIMUM AVERAGE ROLL
va�uEs (MnRv) FOR rHE Fo��owiNc:
GRAB TENSILE 250 LB ASTM D-4632
PUNCTURE 150 LB ASTM D-4833
FLOW RATE 70 GAL�MIN�FT' ASTM �-4491
PERMITTIVITY (SEC�) L2 SEC� ASTM D-4491
UV RESISTANCE 709 STRENGTH @ 500 HOURS ASTM D-4355
APPARENT OPENING SIZE (A05) 0.15-0.18 MM ASTM D-4751
SEAM STRENGTH 90% ASTM D-4632
6. REPLACE RLTER BAG IF BAG CLOGS OR HAS RIPS TEARS OR PUNCTURES. DURING OPERATION KEEP
CONNECTION BETWEEN PUMP HOSE AND FILTER BAG WATER TIGHT. REPLACE BEDDING IFIT BECOMES
DISPLACED.
FlL7ER BAG DETAIL
N.i.s.
1. SET STEEL POSTS 2'-0" DEEP AND EXCAVATE 3. ATTACH THE SILT FENCE GEOTEXTILED
A 4" X 8" TRENCH UPSLOPE ALONG THE LWE FABRIC TO THE SECOND WIRE FROM
OF POSTS. THE TOP ON THE WIRE FENCE AND
EXTEND IT INTO THE TRENCH.
2 ATTACH WIRE FENCING TO 4. THE END OF THE SILT FENCE NEEDS
THE P�STS.
MIN. 10 GA. TO BE TURNED UPHILL
LWE WIRES 5. BACKFILL AND COMPACT THE
FxrovoTFn enu
8'
MqX
��� �
� �
�IIIIIIII II�I11�-�111�,--��' EXTENSION OF FABRIC AND ��III �Illlllllllll�i,
8"MIN. WIRE INTO THE TRENCH % II 1-111 I 111-111=�'
�—_ — A i I I I—I I I—I I I—I I I I�I I 1- �
_— �\�' STEEL POST °11-III=III-II1=
FILTER FABRIC '^^A�"rE"A"cE« --
iusaEcr sEoiMENr FENCEs nT �EnsT oNCE n wEEu
AN� AFiER EACH RAWFALL MANE ANY REIXIIRE�
>i��/�� � IRE�/� � REPnias iMUEoin��v. sHau�o THE Fneaic oF a
BACKFILL TRENCH � �/ sEoiMENT FENCE co��nasE, TEaa, oEcoMaosE oa
AND COMPACT ��// ��� �/� eEcoME inEFFEcnvE, REa�ncE ir aaoMar�v aEMavE
THOROUGHLY �� �\ �\� SEDIMENT OEPOSITS AS NECESSARY TO PRONDE
noEounTE sToancc wwMc rorz rHc rvExr anirv nNo
ro aEoucE aaEssuaE oN rHE FENCE. aEMavE n��
FEnaNc MnTERin�s nNo uNSTne�E sEoiMEnr oEaosirs
AND BRING THE AREA TO GRADE AND STABILIZE IT
CON57RUC710N OF A SILT FENCE aaoaER�vEsr�el�aeu�nNc oaniNncE nREn Hns eEEN
N.rs.
— PLASTIC OR
WIRE TIES
MIN. 12-1/2 GA.
INTERMEDIATE WIRES
�
� �
/
I 3 �'
,_ruaw��n" 7UBIN6 A IUB�IG -,
B 0
' 1-3 8" x i6 GAUGE 1 x 16 GAUGE �_�
°e^
' NOTE '
PLACE SANDBAGS ON PANEL STANDS
FOR iNCREasEo FENCE sraeiurr.
_7
I —.-- ��i— I
7EMPORARY CHAIN UNK FENCE
PANEL STAND DETNL (TYP)
N.i.s.
8
� / �. .L . _ �y = e4•��`^' �:,,,sii�iii+
� d � - '��`1a. . ` _ _ ��
� r a � � ��� ��
� • � .
� � �i �� . � `.. �, �:.. . , ,
C l, .
Z . \. �
r V f� .
1 ,
SLATiED 71MBER MATiING (TYP) — PHASES I d� II
[TO BE APPROVED BY NA710NAL PARK SERVICE]
N.T.S.
COMPACTED ABC CRUSH
AND RUN
7 sme
SHOULDER
wioTH/z �
STABILIZE � �
WITH GRASS
3:1
r —
caMPncrEo
EARTHEN FlLL
OVER NATIVE SOIL
ecRnoE
� EL VATION
7 SIDE
� snou�oER
� STABILIZE
� WITH GRASS
s oz. NON—WovEN
cEarExn�E FneRic uNOER
CRl1SH AND RUN
*MAINTENANCE*
INSPECT CONSTRUCTION ROADS AND PARKING AREAS PERIODICALLY FOR CONDITION OF SURFACE.
TOPDRESS WITH NEW GRAVEL AS NEEDED. CHECK ROAD �ITCHES AND OTHER SEEDED AREAS FOR
EROSION AND SEDIMENTATION AFTER RUNNOFF—PRO�UCING RAINS. MAINTAIN ALL VEGETATION IN A
HEALTHY, VIGOROl1S CON�ITION. SEDIMENT—PRODl1CING AREAS SHOULD BE TREATED IMMEDIATELY.
10' 1MDE GRAVEL ACCESS DRIVE
(PHASE III)
N.is.
lEMPORARY CHAIN LJNK FENCE
PANEL DETAIL (7YP)
n.T.s.
25 � 7'-3" COARSE
� \ ��.4. �y �"' AGGREGATE
\ � ° . .a:. . . .'
,O ' a . a
\
� \ \ \ �. ��° v �" '. �� COMPACTED
. °
a:
" ��
� \ \ � \ \ . e� .d i
\ \ c�� \ a � • . �: j .
\ \ P ��P �,.�'a ��� . / / ����� GEOTEXTILE NON—WOVEN FABRIC
°y \ \ ' :
�
\ \ \ \ \ \` %,,�
Y�11�
\ wMAINTENANCE*
MAINTAIN THE GRAVEL PAD IN A CON�ITION TO PREVENT MU� OR SEDIMENT FROM
�EnviNc rHe coNSTaucrian� siTE. THis Mnv aeouiae aEeiaoic ToaoaEssiNc
� \ \ wim rincn srone. nFTere Encn enwFn��,iNsaECT nNv sTRucluree usEo ro
\\ rRna sEoiMENr nno c�EnN ir ouT ns NECEssnRr.iMMEoinrE�v aEMovE n��
\ OBJECTIONABLE MATERIALS SPILLED, WASHED, OR TRACKE� ONTO PUBLIC ROADWAYS.
�
suBsrnnoN coHsrnucnoN �rnnNc�
N.i.s.
'Il'H[IIS PLAN'Il'O BE
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PURPOSES ONLY