20161203 Ver 1_401 Application_20161216

f� DUKE
ENERGY
Nov. 30, 2016
Mr. John Thomas
Project Manager
US Army Corps of Engineers
CE -SAW -RG -R
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
RE: Pre -Construction Notification — NWP 3
Duke Energy Belews Creek Steam Station, Stokes County, NC
Saddle Dikes 2 & 3 Erosion Repair
Dear Mr. Thomas:
410 S Wilmington St.
Raleigh NC 27601
Enclosed is a Pre -Construction Notification (PCN) application for the above referenced project
located in Stokes County, North Carolina. In accordance with Section 404 of the Clean Water
Act (33 USC 1344), Duke Energy is requesting authorization for a Department of the Army
Nationwide Permit (NWP) #3 to disturb Waters of the United States as part of the Belews Creek
Steam Station Saddle Dikes 2 & 3 Erosion Repair project. Please find enclosed a project
description for this project, along with supporting documentation and figures.
Please do not hesitate to contact me if you have any questions regarding this PCN application.
Respectfully,
Steve Cahoon
Sr. Environmental Specialist
Duke Energy EHS — CCP Permitting and Compliance
Enclosures

0� \NA71
�E �
I 1 � �
I . I q
Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.4 January 2009
Page 1 of 10
PCN Form — Version 1.4 January 2009
Pre -Construction Notification (PCN) Form
A.
Applicant Information
1.
Processing
1a.
Type(s) of approval sought from the Corps:
Q Section 404 Permit ❑ Section 10 Permit
1b.
Specify Nationwide Permit (NWP) number: 3 or General Permit (GP) number:
1c.
Has the NWP or GP number been verified by the Corps?
❑X Yes ❑ No
1d.
Type(s) of approval sought from the DWQ (check all that apply):
Q 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
because written approval is not required?
For the record only for DWQ
401 Certification:
❑ Yes X❑ No
For the record only for Corps Permit:
❑ 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
or in -lieu fee program.
❑ Yes 0 No
1g.
Is the project located in any of NC's twenty coastal counties. If yes, answer 1h
below.
❑ Yes Q No
1 h.
Is the project located within a NC DCM Area of Environmental Concern (AEC)?
❑ Yes Q No
2.
Project Information
2a.
Name of project:
Belews Creek Saddle Dikes 2 & 3 Erosion Repair
2b.
County:
Stokes
2c.
Nearest municipality / town:
Walnut Cove, NC / Stokesdale, NC; Township of Belews Creek
2d.
Subdivision name:
N/A
2e.
NCDOT only, T.I.P. or state project no:
N/A
3.
Owner Information
3a.
Name(s) on Recorded Deed:
Duke Energy Corporation
3b.
Deed Book and Page No.
Deed Book 535, Page No. 965
3c.
Responsible Party (for LLC if
applicable):
3d.
Street address:
3195 Pine Hall Road
3e.
City, state, zip:
Belews Creek, NC 27009
3f.
Telephone no.:
919-546-7457
3g.
Fax no.:
3h.
Email address:
Page 1 of 10
PCN Form — Version 1.4 January 2009

4.
Applicant Information (if different from owner)
4a.
Applicant is:
❑ Agent Other, specify: Duke Energy Employee
4b.
Name:
Steve Cahoon - Senior Environmental Specialist
4c.
Business name
(if applicable):
Duke Energy
4d.
Street address:
410 S. Fayetteville Street
4e.
City, state, zip:
Raleigh, NC 27601
4f.
Telephone no.:
919-546-7457
4g.
Fax no.:
4h.
Email address:
[e-mail]
5.
Agent/Consultant Information (if applicable)
5a.
Name:
5b.
Business name
(if applicable):
5c.
Street address:
5d.
City, state, zip:
5e.
Telephone no.:
5f.
Fax no.:
5g.
Email address:
Page 2of10

B.
Project Information and Prior Project History
1.
Property Identification
1a.
Property identification no. (tax PIN or parcel ID):
6982-00-64-2715
1 b. Site coordinates (in decimal degrees):
Latitude: 36.31829834 Longitude: 80.0348
1 c.
Property size:
6099 acres
2.
Surface Waters
2a.
Name of nearest body of water to proposed project:
Belews Lake
2b.
Water Quality Classification of nearest receiving water:
C
2c.
River basin:
Roanoke River
3.
Project Description
3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this
application:
Belews Creek Steam Station includes a cooling lake, referred to as Belews Lake, that has five impounding structures functioning and permitted as
dams. Belews Lake actually extends over several North Carolina counties, and the lake's dams are partly situated in Stokes County and partly
situated in Rockingham County.
3b.
List the total estimated acreage of all existing wetlands on the property: 29
3c.
List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: 142980
3d. Explain the purpose of the proposed project:
The project purpose is repair of upstream shoreline erosion areas of Saddle Dike No.2 and Saddle Dike No. 3. See Attachment A for additional details
3e. Describe the overall project in detail, including the type of equipment to be used:
See project narrative in Attachment A. Typical construction equipment included tracked/wheeled excavators and dump trucks may be used.
4.
Jurisdictional Determinations
4a.
Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
project (includingall prior phases)in the past?
❑ Yes ❑X No ❑ Unknown
Comments:
4b.
If the Corps made the jurisdictional determination, what type
of determination was made?
❑ preliminary ❑ Final
4c.
If yes, who delineated the jurisdictional areas?
Name (if known):
Agency/Consultant Company: Amec Foster Wheeler
Other:
4d.
If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
5.
Project History
5a.
Have permits or certifications been requested or obtained for
this project (including all prior phases) in the past?
El Yes X❑ No ❑ Unknown
5b.
If yes, explain in detail according to "help file" instructions.
6.
Future Project Plans
6a.
Is this a phased project?
❑ Yes ❑X No
6b.
If yes, explain.
Page 3of10
PCN Form — Version 1.4 January 2009

C. Proposed Impacts Inventory
1. Impacts Summary
1 a. Which sections were completed below for your project (check all that apply):
❑ Wetlands ❑ Streams —tributaries ❑ Buffers ❑X Open Waters ❑ Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a.
Wetland impact
number
Permanent (P) or
Temporary T
2b.
Type of impact
2c.
Type of wetland
2d.
Forested
2e.
Type of jurisdiction
Corps (404,10) or
DWQ (401, other)
2f.
Area of
impact
(acres)
W1
Choose one
Choose one
Yes/No
W2
Choose one
Choose one
Yes/No
W3
Choose one
Choose one
Yes/No
W4
Choose one
Choose one
Yes/No
W5
Choose one
Choose one
Yes/No
W6
Choose one
Choose one
Yes/No
2g. Total Wetland Impacts:
2h. Comments:
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a.
Stream impact
number
Permanent (P) or
Temporary (T)
3b.
Type of impact
3c.
Stream name
3d.
Perennial (PER) or
intermittent (INT)?
3e.
Type of
jurisdiction
3f.
Average
stream
width
(feet)
3g.
Impact
length
(linear
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:
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 individually list all open water impacts below.
4a.
Open water
impact number
Permanent (P) or
Temporary T
4b.
Name of waterbody
(if applicable)
4c.
Type of impact
4d.
Waterbody
type
4e.
Area of impact (acres)
01 P
Belews Lake
Fill
Lake
0.003
02 P
Belews Lake
Fill
Lake
0.005
03
Choose one
Choose
04
Choose one
Choose
4f. Total open water impacts
0.008
4g. Comments: 01 = Saddle Dike 2 repair includes 76 yd3 of rip -rap at and average of 0.55 yd3/linear foot. 02 = Saddle Dike 3 repair includes 126
yd3 of rip -rap at an average of 0.59 yd3/ iinear foot.
5. Pond or Lake Construction
If pond or lake construction proposed, the complete the chart below.
5a.
Pond ID number
5b.
Proposed use or
purpose of pond
5c.
Wetland Impacts (acres)
5d.
Stream Impacts (feet)
5e.
Upland
(acres)
Flooded
Filled
Excavated
Flooded
Filled
Excavated
P1
Choose one
P2
Choose one
5f. Total:
5g. Comments:
5h. Is a dam high hazard permit required?
❑ Yes ❑ No If yes, permit ID no:
5i. Expected pond surface area (acres):
5j. Size of pond watershed (acres):
5k. Method of construction:
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If any impacts require mitigation, then you MUST fill out Section D of this form.
6a. Project is in which protected basin?
❑ Neuse ❑ Tar -Pamlico ❑ Catawba ❑ Randleman ❑ Other:
6b.
Buffer Impact
number -
Permanent (P) or
Temporary T
6c.
Reason for impact
6d.
Stream name
6e.
Buffer
mitigation
required?
6f.
Zone 1
impact
(square
feet)
6g.
Zone 2
impact
(square
feet
B1
Yes/No
B2
Yes/No
B3
Yes/No
B4
Yes/No
B5
Yes/No
B6
Yes/No
6h. Total Buffer Impacts:
6i. Comments:
Page 5of10

D. Impact Justification and Mitigation
1. Avoidance and Minimization
1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
The additional rip -rap protection required to prevent further erosion of the dike embankment toe will be the minimal amount necessary to complete the
proposed repairs.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
The riprap repair consisting of laying geotextile over the existing ground contours followed by placement of bedding stone and riprap to match the
existing slopes was designed to prevent future erosion and undermining of the embankment toe. A temporary turbidity curtain will be used in the lake
throughout the duration of the project as an ES&C BMP.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for
impacts to Waters of the U.S. or Waters of the State?
❑ Yes ❑X No
2b. If yes, mitigation is required by (check all that apply):
❑ DWQ ❑ Corps
2c. If yes, which mitigation option will be used for this
project?
❑ Mitigation bank
El Payment to in -lieu fee program
❑ Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a. Name of Mitigation Bank:
3b. Credits Purchased (attach receipt and letter)
Type: Choose one
Type: Choose one
Type: Choose one
Quantity:
Quantity:
Quantity:
3c. Comments:
4. Complete if Making a Payment to In -lieu Fee Program
4a. Approval letter from in -lieu fee program is attached.
❑Yes
4b. Stream mitigation requested:
linear feet
4c. If using stream mitigation, stream temperature:
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.
Page 6of10
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?
YesX❑ No
6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the
amount of mitigation required.
Zone
6c.
Reason for impact
6d.
Total impact
(square feet)
Multiplier
6e.
Required mitigation
(square feet)
Zone 1
3 (2 for Catawba)
Zone 2
1.5
6f. Total buffer mitigation required:
6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank,
permittee responsible riparian buffer restoration, payment into an approved in -lieu fee fund).
6h. Comments:
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 Riparian Buffer Protection Rules?
1 b.
If yes, then is a diffuse flow plan included? If no, explain why.
❑ Yes ❑X No
2.
Stormwater Management Plan
2a.
What is the overall percent imperviousness of this project?
0
2b.
Does this project require a Stormwater Management Plan?
❑ Yes ❑X No
2c.
If this project DOES NOT require a Stormwater Management Plan, explain why:
The plant has an overall stormwater plan. Stormwater will not be generated by the proposed project.
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 localgovernment's jurisdiction is thisproject?
❑ Phase II
❑ NSW
3b.
Which of the following locally -implemented stormwater management programs
❑ USMP
apply (check all that apply):
❑ Water Supply Watershed
❑ Other:
3c.
Has the approved Stormwater Management Plan with proof of approval been
❑ Yes ❑ No
attached?
4.
DWQ Stormwater Program Review
❑Coastal counties
❑HQW
4a.
Which of the following state -implemented stormwater management programs apply
❑ORW
(check all that apply):
❑Session Law 2006-246
❑ Other:
4b.
Has the approved Stormwater Management Plan with proof of approval been
❑ Yes ❑ 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 8of10
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
❑ Yes ❑X No
use of public (federal/state) land?
1 b.
If you answered "yes" to the above, does the project require preparation of an
environmental document pursuant to the requirements of the National or State
❑ Yes ❑ No
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
1c.
If you answered "yes" to the above, has the document review been finalized by the
State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval
❑ Yes ❑ No
letter.)
Comments:
2.
Violations (DWQ Requirement)
2a.
Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated
Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards,
E] 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
E] 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.
The project will not generate wastewater. There is no sewage disposal or treatment involved with this project.
Page 9of10
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
❑ Yes ❑X No
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act
❑ Yes ❑X No
impacts?
5c. If yes, indicate the USFWS Field Office you have contacted.
-
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
USFWS Information, Planning, and Conservation System (IPaC) website and the N.C. Natural Heritage Program (NCNHP) Natural Heritage
Database Search interactive website.
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat?
❑ Yes ❑X No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
Anadromous Fish Spawning Area Maps, NCDEQ website.
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 X❑ 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?
N.C. Dept. of Cultural Resources, State Historic Preservation Office (SHPO) interactive website (HPOWEB).
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:
The proposed project inlcudes the replacement of previously placed rip -rap along the landward edge of the 100 -year floodplain along Belews Lake.
Wave action of the years has resulted in the loss of the original rip -rap due to erosion.
8c. What source(s) did you use to make the floodplain determination?
NC Flood Maps. FEMA/FIRM number 3710698200K, dated July 3, 2007.
Applicant/Agent's Printed Name
Date
Applicant/Agent's Signature
(Agent's signature is valid only if an authorization
letter from the applicant is provided.
Page 10 of 10

USACE Pre -Construction Notification — NWP 3
Duke Energy Corporation
Belews Creek Steam Station
Saddle Dikes 2 & 3 Erosion Repair
Stokes County, NC
ATTACHMENTS
Figure 1 Site Location Map
Figure 2 USGS Topographic map
Figure 3 NRCS Soils Map
Figure 4 National Wetland Inventory Map
Figure 5 Floodplain Map
Attachment A
Saddle Dikes 2 & 3 Erosion Repair Drawings

RoanoA�nchburg �-'•
�Nrrlo-lk
�aaxvrlVe
Athens CUI�1 .� ace
ea+rrtRCciro///Jmn
Augusta
Charleston
tai/r r3tr
P11F .
Service Layer Credits: © OpenStreetMap (and) contributors, C
LEGEND
® Belews Creek Steam Station Boundary
Project Area
P:\Energy\Projects\Duke\2015\Carolinas ABSAT Natural Resources Surveys\16 Sites\T&E Survey Proposed\GIS\Report_MXDs\Data Driven\Figure1_SiteMap.mxd, User: jason.hightower; Date: 8/12/2016 2:44:51 PM,
Belews Creek Steam Station
Stokes County, NC
Saddle Dikes 2 & 3 Erosion Repair
Site Location Map
PROJECT NO: 60519806 FIGURE NO:
A
0 600 1,200 Feet
I I
DUKE
ig�
ENERGY
The map shown here has been
.
created with all due and reasonable
care and is strictly for use with Amec
Foster Wheeler project number
amec
. Amec Foster Wheeler
foster
assumes no liability, direct or indirect,
whatsoeveror any such third party
wheeler
or unintended use.
NOTE: THIS FIGURE IS FOR REFERENCE ONLY.
LEGEND
® Belews Creek Steam Station Boundary
Project Area
P:\Energy\Projects\Duke\2015\Carolinas ABSAT Natural Resources Surveys\16 Sites\T&E Survey Proposed\GIS\Report_MXDs\Data Driven\Figure1_SiteMap.mxd, User: jason.hightower; Date: 8/12/2016 2:44:51 PM,
Belews Creek Steam Station
Stokes County, NC
Saddle Dikes 2 & 3 Erosion Repair
Site Location Map
PROJECT NO: 60519806 FIGURE NO:
A
0 600 1,200 Feet
I I
DUKE
ig�
ENERGY

Roanoke Richmond 1 •� • .�,.�1 �, N
'YP'fIuF14i + . f) yy
Nrrlalk
i
�aaxvrlle i r r •
Ch tt _ F . c d e ♦ 'irr 4
i
n
Athens CO-
Florence �, ` •
- ''�rrtRCairoJrnc rr/
Augusta IL
1-y
• _ `\
Macon
' Charlcxoro
4
0-01
100
a
!
'011 46 p th
.�
IWO
1
— — •, f �'T 1 0 600 1,200 Feet
Service Layer Credits: © OpenStreetMap (andr contributors, CCTe
The map shown here has been Belews Creek Steam Station
created with all due and reasonable
care and is strictly for use with Amec LEGEND Stokes County, NC
Foster Wheeler project number DUKE
amec Amec Foster Wheeler Saddle Dikes 2 & 3 Erosion Repair
assumes no liability, direct or indirect, Belews Creek Steam Station Boundary 19� ENERGY,
foster whatsoeveror any such third party USGS Topographic Map
wheeler or unintended use. Project Area
NOTE: THIS FIGURE IS FOR REFERENCE ONLY. PROJECT NO: 60519806 FIGURE NO: 2
Energy\Projects\Duke\2015\Carolinas ABSAT Natural Resources Surveys\16 Sites\T&E Survey Proposed\GIS\Report_MXDs\Data Driven\Figure1_SiteMap.mxd, User: jason.hightower; Date: 8/12/2016 2:44:51 PM,

P:\Energy\Projects\Duke\2015\Carolinas ABSAT Natural Resources Surveys\16 Sites\T&E Survey Proposed\GIS\Report_MXDs\Data Driven\Figure1_SiteMap.mxd, User: jason.hightower; Date: 8/12/2016 2:44:51 PM,

Lynchburg
Roanoke v Richmond
�rFe�rpors,; -
�kevNorfolk ~ �^�
-4: — J
Inra - -Augusta
Macon
VV, owl' -Vr' 1W 1W
0 400 800 Feet
`45117er ice Laye s: © p n r and) contributors, CC- I I I
The map shown here has been
Belews Creek Steam Station
created with all due and reasonable LEGEND
care and is strictly for use with Amec
Stokes County, NC
amec
Foster Wheeler project number
Amec Foster Wheeler Belews Creek Steam Station Boundary
Saddle Dikes 2 & 3 Erosion Repair
DUKE
��
foster
assumes no liability, direct or indirect,
National Wetland Inventory Map
ENERGY,
Yo
wheeler
whatsoeveror any such third party
or unintended use. Lake Project Area
PROJECT NO: 60519806
FIGURE NO: 4
NOTE: THIS FIGURE IS FOR REFERENCE ONLY.
iergy\Projects\Duke\2015\Carolinas ABSAT Natural Resources Surveys\16 Sites\T&E Survey Proposed\GIS\Report_MXDs\Data Driven\Figure1_SiteMap.mxd, User: jason.hightower; Date: 8/12/2016 2:44:51 PM,

P:\Energy\Projects\Duke\2015\Carolinas ABSAT Natural Resources Surveys\16 Sites\T&E Survey Proposed\GIS\Report_MXDs\Data Driven\Figure1_SiteMap.mxd, User: jason.hightower; Date: 8/12/2016 2:44:51 PM,

ATTACHMENT A
The Belews Creek Steam Station is located in Belews Creek, North Carolina, which is in Stokes County.
The Station includes a cooling lake, referred to as Belews Lake, that has five impounding structures
functioning and permitted as dams. Belews Lake actually extends over several North Carolina counties,
and the lake's dams are partly situated in Stokes County and partly situated in Rockingham County.
These dam structures include the Main Dam (ROCKI-236), Saddle Dike No. 1 (STOKE -117), Saddle Dike
No. 2 (STOKE -118), Saddle Dike No. 3 (STOKE -119), and Saddle Dike No. 4 (ROCKI-235).
The Scope of Work under Issue No. BC -413 is limited upstream shoreline erosion areas of Saddle Dike
No.2 and Saddle Dike No. 3. Riprap protection was part of the original design for the upstream slopes of
the Saddle Dikes. The original design shows riprap protection extending from below the normal water
level to the upstream crest of the dam. Wave action over the years has resulted in loss of riprap
material and extended to native material very near the embankment toe. These areas could become a
dam safety concern as further erosion could begin to undermine the embankment toe. A riprap repair
detail consisting of laying geotextile over the existing ground contours followed by placement of
bedding stone and riprap to match the existing slopes was designed to prevent future erosion and
undermining of the embankment toe. A temporary turbidity curtain will be used in the lake throughout
the duration of the project as an ES&C BMP.

DUKE ENERGY
BELEWS CREEK STEAM STATION
DUKE ENERGY ISSUE NO. BC -413
SADDLE DIKES 2 & 3 EROSION REPAIR
NCDEQ STATE DAM ID'S: STOKE - 118 & 119
STOKES COUNTY, NORTH CAROLINA
NOVEMBER 28, 2016
DWG. NO. DWG. DESCRIPTION PREPARED FOR:
@ 'Pine Hall
n 1 TITLE SHEET DUKE ENERGY (OWNER)
2 OVERALL SITE PLAN
400 S. TRYON STREET, MAIL CODE ST05H
3 EROSION AREA 1 CHARLOTTE, NC 28202
SITE 4 EROSION AREA 2 CONTACT: RANDY HART
5 EROSION AREA REPAIR DETAILS AND NOTES
-' PHONE: [phone]
6 TEMPORARY TURBIDITY CURTAIN DETAILS AND NOTES
i PREPARED BY:
AECOM (ENGINEER)
1600 PERIMETER PARK DR. SUITE 400
1 I
MORRISVILLE, NC 27560
i s CONTACT: DOUGLAS W. CARR, P.E.
i PHONE: [phone]
I
J I NOTE: IT IS ANTICIPATED THAT THE WORK SCOPE OUTLINED IN THESE PLANS
WILL NOT REQUIRE ANY LAND DISTURBING ACTIVITIES. THUS, A NCDEQ
STEAMWSTATION� EROSION AND SEDIMENT PERMIT HAS NOT BEEN SOUGHT AND THESE
_ PLANS DO NOT INCLUDE ANY EROSION AND SEDIMENT CONTROL
- DETAILS, NOTES, ETC. IN THE EVENT THAT ANY SHORELINE AREAS ARE
INADVERTENTLY DISTURBED DURING THE WORK, SUCH AREAS
SITE VICINITY MAP SHOULD BE IMMEDIATELY RESEEDED IN ACCORDANCE WITH THE
VEGETATION MAINTENANCE IMPLEMENTATION PLAN (VMIP) FOR DUKE
ENERGY BELEWS CREEK STEAM STATION AND THE REQUIREMENTS p _
-5,000 0 2,500 5,000 OF STANDARD SPECIFICATION 6.10 OF THE NORTH CAROLINA A_ OM
N SEDIMENT CONTROL PLANNING AND DESIGN MANUAL. �� CARS BELEWS CREEK STEAM STATION
SCALE IN FEET © `fes PHASE 4 & 5 SUPPLEMENTAL SERVICES
4[1F�"5joiy� `� DUKE ENERGY
Q
SE ISSUE BC -413
026889 11128 0 t- SADDLE DIKES 2 & 3 EROSION REPAIR
NGINE. r TITLE SHEET

4 '
l
ik alt '
I _ ; + _ �
•�
w `y
s
0 500
_,
1
SCALE: 1" = 500'
fro. 10
`
SADDLE DIKE 4
N
06
b -
N
O
e
NOTES:
Z
O
1. AERIAL IMAGE OBTAINED FROM ARCGIS
tZ
SADDLE DIKE
3
o
E , V,
MAIN DAM
o.ti+
•` y , R_
', •,;
EROSION REPAIR AREA 1
16
a
,
SADDLE DIKE 2
O
r
Of
"p
k
•',+_
BELEWS LAKE
d�
tiro.
ori
!' - - i •,
U
W
EROSION REPAIR AREA 2
'
o
- -
JACQM
CA)?
BELEWS CREEK STEAM STATION
SADDLE DIKE 1
�O E51 .
PHASE 4 & 5 SUPPLEMENTAL SERVICES
DUKE ENERGY
N
�q
SEAL _ •
ISSUE BC -413
.-
025889 ll�r, fG
SADDLE DIKES 2 & 3 EROSION REPAIR
0 VGINE � ��
OVERALL SITE PLAN
ASWGP
DRAWN BY.
SS
CHECKED BY:
DWC
PROJECT No:
60519806
DATE:
11/28/16
DWG. No:
2
i
0

* #A ,
�► vs
4-1
'T
- -
SHORELINE EDGE OF EROSION —
0
i
o \�
c 1
E�
d
a
a
N
N -
a
d
0
v
% :&. '�
CONTRACTOR TO FIELD FIT
RIPRAP AT TERMINATIONS
OF REPAIR TO PREVENT
FUTURE EROSION
o
N
" -K y
U _
X
"IV
SADDLE DIKE 2
'._; . „� LIMITS OF SURVEY
- (SEE NOTES 1 & 2)
TEMPORARY
TURBIDITY CURTAIN
a '
(SEE DRAWING NO. 6)
r
PROPOSED AREA OF RIPRAP
(SEE TYPICAL REPAIR DETAIL)
BELEWS LAKE
CARp�r
4 a�qF �–sS104'
SEAL
026889 t1/26%rfC
tmNE�� �� 1
I
r
0 50'
SCALE: 1" = 50'
LEGEND
PROPOSED MAJOR CONTOURS
PROPOSED MINOR CONTOURS
LIMITS OF SURVEY
13 E3 TEMPORARY TURBIDITY CURTAIN
PROPOSED REPAIR
NOTES:
1. TOPOGRAPHIC SURVEY WAS OBTAINED
BY S.D. PUCKETT & ASSOCIATES, INC.
ON OCTOBER 17, 2016.
2. BATHYMETRIC SURVEY OF SHOWN
AREA IN BELEWS LAKE WAS OBTAINED
USING A HYDRONE-RCV REMOTE
CONTROL SURVEY BOAT PLATFORM ON
OCTOBER 10, 2016 BY AECOM.
3. AERIAL IMAGE OBTAINED FROM ARCGIS
ICOM
BELEWS CREEK STEAM STATION
PHASE 4 & 5 SUPPLEMENTAL SERVICES
DUKE ENERGY
ISSUE BC -413
SADDLE DIKES 2 & 3 EROSION REPAIR
EROSION REPAIR AREA 1
DRAWN BY: CHECKED By.1 PROJECT No: DATE: DWG. No:
SS DWC 60519806 11/28/16 3

u
E
(V
TEMPORARY
TURBIDITY CURTAIN
(SEE DRAWING NO. 6)
I
)GE OF EROSION
Q
0
0
W
i
a
a
CONTRACTOR TO FIELD FIT
RIPRAP AT TERMINATIONS
OF REPAIR TO PREVENT
FUTURE EROSION
SADDLE DIKE 3
s . 00
A
a
PROPOSED AREA OF RIPRAP
(SEE TYPICAL REPAIR DETAIL)
LIMITS OF SURVEY
(SEE NOTES 1 & 2)
BELEWS LAKE
ME "
NOTES:
0 50'
SCALE: 1" = 50'
PROPOSED MAJOR CONTOURS
PROPOSED MINOR CONTOURS
LIMITS OF SURVEY
TEMPORARY TURBIDITY CURTAIN
PROPOSED REPAIR
1. TOPOGRAPHIC SURVEY WAS OBTAINED
BY S.D. PUCKETT & ASSOCIATES, INC.
ON OCTOBER 17, 2016.
2. BATHYMETRIC SURVEY OF SHOWN
AREA IN BELEWS LAKE WAS OBTAINED
USING A HYDRONE-RCV REMOTE
CONTROL SURVEY BOAT PLATFORM ON
OCTOBER 10, 2016 BY AECOM.
3. AERIAL IMAGE OBTAINED FROM ARCGIS
ICOM
CARO BELEWS CREEK STEAM STATION
�9-F��O PHASE 4 & 5 SUPPLEMENTAL SERVICES
�lz '}T DUKE ENERGY
SEAL ISSUE BC -413
026889 tl/26,,/z rL SADDLE DIKES 2 & 3 EROSION REPAIR
'o NE�� c� EROSION REPAIR AREA 2
AS DRAWN BY: CHECKED BY: PROJECT No: I DATE: DWG. No:
mm" SS DWC 60519806 11/28/16 L4
U
�
o
a
o
s
i
it
I
r
0
U
0
CONTRACTOR TO FIELD FIT
RIPRAP AT TERMINATIONS
OF REPAIR TO PREVENT
FUTURE EROSION
SADDLE DIKE 3
s . 00
A
a
PROPOSED AREA OF RIPRAP
(SEE TYPICAL REPAIR DETAIL)
LIMITS OF SURVEY
(SEE NOTES 1 & 2)
BELEWS LAKE
ME "
NOTES:
0 50'
SCALE: 1" = 50'
PROPOSED MAJOR CONTOURS
PROPOSED MINOR CONTOURS
LIMITS OF SURVEY
TEMPORARY TURBIDITY CURTAIN
PROPOSED REPAIR
1. TOPOGRAPHIC SURVEY WAS OBTAINED
BY S.D. PUCKETT & ASSOCIATES, INC.
ON OCTOBER 17, 2016.
2. BATHYMETRIC SURVEY OF SHOWN
AREA IN BELEWS LAKE WAS OBTAINED
USING A HYDRONE-RCV REMOTE
CONTROL SURVEY BOAT PLATFORM ON
OCTOBER 10, 2016 BY AECOM.
3. AERIAL IMAGE OBTAINED FROM ARCGIS
ICOM
CARO BELEWS CREEK STEAM STATION
�9-F��O PHASE 4 & 5 SUPPLEMENTAL SERVICES
�lz '}T DUKE ENERGY
SEAL ISSUE BC -413
026889 tl/26,,/z rL SADDLE DIKES 2 & 3 EROSION REPAIR
'o NE�� c� EROSION REPAIR AREA 2
AS DRAWN BY: CHECKED BY: PROJECT No: I DATE: DWG. No:
mm" SS DWC 60519806 11/28/16 L4

0
U
Q
a
i=
E
0
a
N
N
a
a
la
TYPICAL REPAIR CROSS-SECTION
NOT TO SCALE
NOTES:
1. ANCHOR GEOTEXTILE AT SHORELINE USING STAPLES PER MANUFACTURER'S RECOMMENDATIONS. ALL
GEOTEXTILE SHALL RUN HORIZONTALLY (PARALLEL TO THE SHORELINE) AND BE PLACED FROM BOTTOM
OF EROSION AREA TO TOP SUCH THAT THE UPPER SECTIONS OVERLAP OVER TOP OF THE LOWER
SECTIONS.
2. CONTRACTOR TO MATCH THE RIPRAP SLOPE WITH THE EXISTING LINE OF GRADE.
3. RIPRAP SHALL BE PLACED IN MAXIMUM 24" LIFTS ALONG WITH THE GEOTEXTILE AND BEDDING LAYER.
4. RIPRAP SHALL GRADED BE SO THAT SMALLER STONES ARE UNIFORMLY DISTRIBUTED THROUGHOUT THE
MASS; FORMING A PROPERLY GRADED, DENSE, NEAT LAYER OF STONE.
5. DROP DISTANCE FOR RIPRAP SHOULD BE LIMITED TO NO MORE THAN 3—FT TO AVOID PUNCTURING THE
GEOTEXTILE THROUGH THE BEDDING STONE.
6. BEDDING STONE SHALL EXTEND HORIZONTALLY OUT FROM THE SHORELINE A DISTANCE EQUAL TO TWO
TIMES THE LARGEST SCARP HEIGHT AT EACH REPAIR AREA, UP TO A MAXIMUM OF 15 FT.
APPROXIMATE QUANTITIES
EROSION AREA 1 (SADDLE DIKE 2)
NCDOT CLASS 2 RIPRAP
505
TONS
NO. 467M STONE
210
TONS
16 OZ NON—WOVEN GEOTEXTILE
3000
SQFT
EROSION AREA 2 (SADDLE DIKE 3)
NCDOT CLASS 2 RIPRAP
215
TONS
NO. 467M STONE
100
TONS
16 OZ NON—WOVEN GEOTEXTILE
1800
SQFT
* QUANTITIES ABOVE DO NOT CONTAIN A CONTINGENCY
FACTOR.
� � 0�
SEAL
026889
AS

E
i
0
N
N
z°
la
0
a
a
a
d
E
0
a
N
N
a
a
la
NOTES:
CURTAIN SKIRT
LIMIT CURTAIN SEC11ONS
TO SO' (MIN) -100' (MAX)
1. TEMPORARY FLOATING TURBIDITY CURTAINS SHALL BE USED BY THE CONTRACTOR AT EACH EROSION REPAIR AREA
THICKNESS, MILS
RSAL CONNECTOR
ATATION SEGMENT
TO CREATE A BARRIER TO RESTRICT TURBID WATER TO DEFINED CONSTRUCTION ZONE. THE TURBIDITY CURTAINS
FLOATATION
FOLD JOINTJOR
SHALL BE INSTALLED AS SHOWN ON THESE PLANS AND THIS SHEET TO ISOLATE ACTIVE CONSTRUCTION AREAS
�- SEGMENT
�FLO
TENSION CABLE STORAGE
WITHIN OR ADJACENT TO THE BODY OF WATER TO MINIMIZE THE MIGRATION OF SILT LADEN WATER OUT OF THE
WATER
JTOP
100, MACHINE DIRECTION
STRENGTH
CONSTRUCTION ZONES.
3' MIN. SURFACE
DIRECTION
UV INHIBITOR
MUST BE INCLUDED
2. TURBIDITY CURTAINS SHALL BE INSTALLED AND CONTINUALLY USED TO PROVIDE AN IMPERMEABLE FABRIC TO THE
DEPTH SPECIFIED. INSTALLATION SHALL BE IN GENERAL ACCORDANCE WITH NCDOT EROSION AND SEDIMENT
°
CONTROL SPECIAL PROVISIONS TITLED "FLOATING TURBIDITY CURTAIN", WITH THE ADDITIONAL REQUIREMENTS
II _______________________________________
REQUIRED BY THESE PLANS.
------------------------------------------- --- ----------- -----------
0
3. LITTLE TO NO FLOWS/CURRENT ARE EXPECTED IN THE LAKE. THUS, A TYPE II TURBIDITY CURTAIN SHALL BE
INSTALLED. IF FLOW CONDITIONS DIFFER FROM THIS ASSUMPTION, NOTIFY DUKE ENERGY AND THE ENGINEER OF
O II
RECORD FOR FURTHER DIRECTION. IN EVENT OF HIGH WINDS, CONSTRUCTION MAY NEED TO BE TEMPORARILY
0
HALTED.
CURTAIN SKIRT
0 II
(DEPTH VARIES)
4. DESIGN OF CURTAINS AND ANCHORAGE SHALL BE IN ACCORDANCE WITH MANUFACTURER'S RECOMMENDATIONS.
0 '
FILTER CLOTH SKIRT SHOULD BE ABLE TO WITHSTAND THE FORCES IMPARTED ON IT DUE TO THE EXPECTED WIND
0
VELOCITY OR WATER BODY FLOW VELOCITY.
0 l
5. CURTAINS SHALL BE INSTALLED AS CLOSE TO PROJECT AREA AS POSSIBLE. BARRIERS SHALL BE USED AND
0
SHOULD BE A BRIGHT COLOR (YELLOW OR "INTERNATIONAL" ORANGE ARE RECOMMENDED) THAT WILL ATTRACT THE
0 j
ATTENTION OF NEARBY BOATERS.
0 !?
6. SINCE THE TURBIDITY CURTAINS WILL BE IN A NAVIGABLE WATERWAY, DUKE ENERGY OR REGULATORY AUTHORITIES
0 II ANDLATE OR
MAY REQUIRE LIGHTED BUOYS TO BE LIT ACCORDING TO REGULATORY AGENCY STANDARDS.
�STREK
0 H CONNECTION
BALLAST
7. FLOATATION DEVICES SHALL BE FLEXIBLE, BUOYANT UNITS CONTAINED IN AN INDIVIDUAL FLOATATION SLEEVE OR
CHAIN
011
-- -- - - --- -- - -- -- -- --- -- --- -- - - -- --
COLLAR ATTACHED TO THE CURTAIN. BUOYANCY PROVIDED BY THE FLOATATION UNITS SHALL BE SUFFICIENT TOI-
WATER
o
SUPPORT THE WEIGHT OF THE CURTAIN AND MAINTAIN A FREEBOARD OF AT LEAST 3 INCHES ABOVE THE WATER
1 BODY
BOTTOM
SKIRT CONNECT
POOL ELEVATION. 12' MIN.
11
GROMMETS
8. LOAD LINES SHALL BE FABRICATED INTO THE BOTTOM AND TOP OF THE CURTAINS. THE TOP LOAD LINE SHALL
BE A VINYL—COATED STEEL CABLE AT LEAST 5/16"IN DIAMETER WITH A BREAK STRENGTH IN EXCESS OF 10,000
LBS. THE BOTTOM LOAD LINE SHALL CONSIST OF A CHAIN INCORPORATED INTO THE BOTTOM HEM OF THE
CURTAIN OF SUFFICIENT WEIGHT TO SERVE AS BALLAST TO HOLD THE CURTAIN IN A VERTICAL POSITION. THE
LOAD LINES SHALL HAVE SUITABLE CONNECTING DEVICES WHICH DEVELOP THE FULL BREAKING STRENGTH FOR
CONNECTING TO LOAD LINES OF ADJACENT SECTIONS.
9. THE CURTAINS SHALL BE INSTALLED IN THE LOCATIONS AND GENERAL ORIENTATIONS/LENGTHS SHOWN IN THESE
PLANS. AVOID AN EXCESSIVE AMOUNT OF JOINTS IN THE TURBIDITY CURTAINS. MAINTAIN SPAN LENGTHS
BETWEEN A MINIMUM OF 50 FEET AND A MAXIMUM OF 100 FEET.
10. WHEN ESTIMATING THE LENGTH OF TURBIDITY CURTAIN, ALLOW 10 TO 20 PERCENT VARIANCE IN STRAIGHT LINE
MEASUREMENT.
11. SUFFICIENT SHORE AND WATER BODY ANCHORS SHALL BE USED TO PREVENT DRIFT AND TO KEEP TURBIDITY
CURTAINS AT THEIR INSTALLED LOCATIONS. ANCHORAGE SHALL BE INSTALLED ON BOTH SHORE AND WATER BODY
SIDES. SHORE ANCHORS SHALL CONSIST OF A POST WITH DEADMAN OR APPROVED EQUAL. WATER BODY
ANCHORS SHALL BE OF SUFFICIENT NUMBER AND SIZE TO STABILIZE THE BARRIER WITH NUMBER AND SPACING
DEPENDENT ON WATERWAY VELOCITIES AND MANUFACTURER'S RECOMMENDATIONS.
12. CURTAIN ENDS (BOTH FLOATING UPPER AND WEIGHTED LOWER) SHALL EXTEND WELL UP ONTO THE SHORELINE
(MINIMUM 1 FOOT ABOVE LAKE LEVEL). THE ENDS SHALL BE SECURED FIRMLY TO THE SHORELINE TO FULLY
ENCLOSE THE AREAS WHERE SEDIMENT MAY ENTER THE WATER.
13. IN SHALLOW WATER (2 FEET OF DEPTH OR LESS) TURBIDITY CURTAINS MAY BE INSTALLED ON STAKES DRIVEN
INTO THE BED OF THE WATER BODY.
14. FABRIC SECTIONS SHALL BE CONNECTED END TO END FROM TOP OF THE FLOATATION DOWN THE EDGE OF THE
SKIRT WITH BUILT—IN REINFORCED UNIVERSAL CONNECTORS AND ROPE TIES BETWEEN EVENLY SPACED GROMMETS
AND STRESS PLATES WITH HOOK AND RING CONNECTORS AT THE CURTAIN BOTTOM.
15. SEAMS IN THE FABRIC SHALL BE WELDED OR SEWN IN A MANNER THAT RETAINS THE OVERALL TENSILE STRENGTH
OF CURTAIN SKIRT.
16. THE TURBIDITY CURTAIN AND ADJACENT WORK AREAS SHALL NOT BE DISTURBED 12 HOURS PRIOR TO REMOVAL
FROM WATER BODY. MAINTENANCE AND/OR REPAIRS SHALL BE PERFORMED AS NEEDED TO MAINTAIN CONTINUAL
OPERATION AND TURBID WATER CONTROL. CONTRACTOR SHALL REMOVE THE CURTAIN AT COMPLETION OF WORK IN
A MANNER THAT WILL PREVENT SILTATION OF THE WATERWAY. DURING REMOVAL, EXTREME CARE SHOULD BE
TAKEN NOT TO DISTURB ANY SEDIMENT DEPOSITS.
17. MAINTAIN 12" MINIMUM GAP BETWEEN SKIRT BOTTOM AND CHANNEL BOTTOM TO PREVENT ACCUMULATED SEDIMENT
FROM PULLING TOP OF CURTAIN BELOW WATER SURFACE.
18. IN WIND OR WAVE ACTION SITUATIONS, THE MAXIMUM DEPTH OF THE CURTAIN SHALL BE 12 FEET.
19. CONTRACTOR SHALL SUBMIT THE PROPOSED TURBIDITY CURTAIN TO DUKE ENERGY AND ENGINEER FOR APPROVAL
PRIOR TO INSTALLATION.
20. CONTRACTOR IS RESPONSIBLE FOR REPLACING OR FURNISHING ADDITIONAL TURBIDITY CURTAIN AS NEEDED TO
SUPPORT THE SHORELINE REPAIR WORK.
21. TURBIDITY CURTAIN MAY NOT BE LEFT ON—SITE AT COMPLETION OF PROJECT, UNLESS AGREED UPON BY OWNER.
VINYL -COATED
STEEL TOP
LOAD LINE
18-22 OZ. PVC
CURTAIN SKIRT
AND CHAIN
LOAD LINE
LL!-WJ� X111=1
FLOATING TURBIDITY CURTAIN ELEVATION
USE LIGHTED
BUOY SYSTEM
AS REQUIRED
TURBID WATER
BOTTOM OF
WATER BODY
NOT TO SCALE
ATTACH LINES
U
12' MIN.
(SEE NOTE 17 THIS SHEET)
(WATER SURFACE
FLOATATION DEVICES (BUOYS)
CLEAR WATER
CURTAIN SKIRT
i -BOTTOM ANCHOR
TYPICAL ANCHORING SECTION
NOT TO SCALE
R_ CAR01
QQF ES5l0�,9
SEAL
026889
A 5 W GQ
PHYSICAL PROPERTIES OF TURBIDITY
CURTAIN SKIRT
PHYSICAL PROPERTY
MINIMUM REQUIREMENT
THICKNESS, MILS
45
WEIGHT, OZ./SQ. YD.
18-22
GRAB TENSILE STRENGTH,
370, MACHINE DIRECTION
LBS
250 CROSS MACHINE
DIRECTION
TRAPEZOIDAL TEAR
100, MACHINE DIRECTION
STRENGTH
60 CROSS MACHINE
DIRECTION
UV INHIBITOR
MUST BE INCLUDED
SHORE ANCHOR
GROUNDWORK
ZONE
/II CLEAR
WATER
TURBIDITY
\ CURTAIN
TURBID W loo.
WATER a Typ,
ANCHOR
TYPICAL ANCHORING
PLAN FOR SHORELINE
NOT TO SCALE