20240538 Ver 1_00_Agent_Authorization_SignedPCNpage_20240408

AGENT AUTHORIZATION FORM
I, Jonathan Stone hereby certify that I have authorized Johanna Velasquez, representing
HDR Engineering, Inc. of the Carolinas, to act on my behalf and take all actions necessary
to the processing and issuance and acceptance of this permit, and all standard, and
special conditions attached associated with the Sweetwater Tap Relocation Project in
Catawba County, North Carolina.
Property Legal Description: Not Applicable - Utility line right-of-way. Duke Energy
Carolinas, LLC
We hereby certify that the information submitted in this application is true and accurate to
the best of our knowledge.
Jonathan Stone
Duke Energy Carolinas, LLC
Applicant's Name
A
plicarr 's Signature
Date
hdrinc.com
440 South Church Street Suites 900 & 1000, Chadatte, NC 28 202-2 07 5
T 704.338.8700 F 704,338,6760
Johanna Velasquez, HDR, Inc.
Agent's Name
Agent's Signature
3127/2024
Date

0 ST ,
c
y o
EaeauMn�mE"'
NORTH CAROLINA
Environmental Quality
Wo ter Resources
Office Use Only
Corps Action ID no. [Click to enter.] Date received: [Click to enter.]
DWR project no. [Click enter.] Date received: [Click to enter.]
Site Coordinates:
Latitude (DD.DDDDDD): 35.722314'
Longitude (DD.DDDDDD): 81.310363'
Form Version 4.3, April 20, 2022
Pre -Construction Notification (PCN) Form
(Ver. 4.2, January 31, 2022))
For Nationwide Permits and Regional General Permits and corresponding Water Quality Certifications
Please note: fields marked with a red asterisk * are required. The form is not considered complete until all
mandatory questions are answered.
The PCN help document may be found at this link:
://edocs.dea.nc.aov/WaterResources/DocView.aSDx?dbid=0&id=2196924&cr=1
Please ensure you have submitted a pre -filing meeting request at least 30 days prior to submitting this
form, as DWR will not be able to accept your application without documentation of this important first step.
The Division has developed a Pre -filing Meeting Request email address 401 PreFileCa)_ncdenr.gov to accept
the federally required pre -filing meeting request and provide confirmation receipt of submittal . This receipt
or similar documentation will satisfy 40 C.F.R. Section 121.4(a) which states "At least 30 days prior to
submitting a certification request, the project proponent shall request a pre -filing meeting with the certifying
agency." In accordance with 40 C.F.R. Section 121.5(b)(7), and (c)(5), all certification requests must
include documentation that a pre -filing meeting request was submitted to the certifying authority at least 30
days prior to submitting the certification request.
Attach documentation of Pre -Filing Meeting Request to this Application.
Date of Pre -filing Meeting Request (MM/DD/YYYY) *: 11/28/2023
Page 1 of 22 PCN Form Version 4.3- April 20, 2022

A. Processing Information
County (counties) where project is located: *
Catawba Additional (if needed).
Is this an ARPA project? *
❑ Yes N No
If yes, ARPA project number:
* The project number can be found on the "Letter of Intent to Fund"
(LOIF) or "Offer and Acceptance Letter". If you are unable to locate
Click or tap here to enter text.
your DWI ARPA Funding Project Number, please contact Corey
Basinger at core v.basinger(a)ncdenr.gov for further assistance.
Is this a NCDMS project? *
(Click yes only if NCDMS is the applicant or co-
❑ Yes N No
applicant)
Is this a public transportation project?
(Publicly funded municipal, state, or federal road, rail,
❑ Yes N No
or airport project)
Is this a NCDOT project? *
❑ Yes N No
If yes, NCDOT TIP or state project number:
Click to enter.
If yes, NCDOT WBS number: *
Click to enter.
N Section 404 Permit (wetlands, streams, waters,
Clean Water Act)
la. Type(s) of approval sought from the Corps: *
❑ Section 10 Permit (navigable waters, tidal
waters, Rivers and Harbors Act)
Has this PCN previously been submitted? *
❑ Yes N No
Please provide the date of the previous submission. *
Click to enter a date.
N Nationwide Permit (NWP)
1 b. What type(s) of permit(s) do you wish to seek
*
El Regional General Permit (RGP)
authorization?
❑ Standard (IP)
This form may be used to initiate the standard/ individual permit process with the USACE. Please contact your Corps
representative concerning submittals for standard permits. All required items can be included as attachments and
submitted with this form.
1c. Has the NWP or GP number been verified by the Corps? *
❑ Yes ❑x No
NWP number(s) (list all numbers ):
57 — Electric Utility Line and
Telecommunications Activities
RGP number(s) (list all numbers ):
Click to enter.
Are you a federal applicant?
❑ Yes N No
If yes, please provide a statement concerning compliance with the Coastal Zone Management Act
Click to enter text.
1 d. Type(s) of approval sought from DWR (check all that apply):
N 401 Water Quality Certification — Regular
❑ 401 Water Quality Certification— Express
❑ Non-404 Jurisdictional General Permit
❑ Riparian Buffer Authorization
❑ Individual 401 Water Quality Certification
Page 2 of 22 PCN Form Version 4.3- April 20, 2022

Is this a courtesy copy notification
❑ Yes
❑x No
1 e.
Is this notification solely for the record because written approval is not required? *
For the record only for DWR 401 Certification: *
❑ Yes
❑x No
For the record only for Corps Permit: *
® Yes
❑ No
1f.
Is this an after -the -fact permit/certification application? *
❑ Yes
❑x No
1g.
Is payment into a mitigation bank or in -lieu fee program proposed for
mitigation of impacts?
❑ Yes
® No
If yes, attach the acceptance letter from mitigation bank or in -lieu fee program.
1 h.
Is the project located in any of NC's twenty coastal counties? *
❑ Yes
® No
1 i.
Is the project located within an NC DCM Area of Environmental
Concern (AEC)? *
❑ Yes
® No ❑ Unknown
1j.
Is the project located in a designated trout watershed? *
❑ Yes
❑x No
If yes, you must attach a copy of the approval letter from the appropriate Wildlife Resource Commission Office.
Trout information may be found at this link: http://www.saw.usace.army.miI/Missions/Regulatory-Permit-
Program/Agency-Coordination/Trout.aspx
Page 3 of 22 PCN Form Version 4.3- April 20, 2022

B. Applicant Information
1a.
Who is the primary contact? *
Jonathan Stone
1 b.
Primary Contact Email: *
[e-mail]
1c.
Primary Contact Phone: * (###)###-####
[phone]
1d.
Who is applying for the permit/certification? * (check
all that apply)
❑ Owner 0 Applicant (other than owner)
1 e.
Is there an agent/consultant for this project?*
Z Yes ❑ No
2.
Landowner Information
2a.
Name(s) on Recorded Deed: *
Martin Marrieta Materials Inc. and Duke Energy
Carolinas, LLC -Easement
2b.
Deed Book and Page No.:
Book 3819, Page 0629
2c.
Contact Person (for corporations):
Jonathan Stone
2d.
Address *
Street Address:
526 S. Church Street
Address line 2:
Click to enter.
City:
Charlotte
State/ Province/ Region:
North Carolina
Postal/ Zip Code:
28202
Country:
Click to enter.
2e.
Telephone Number: * (###)###-####
Click to enter.
2f.
Fax Number: (###)###-####
Click to enter.
2g.
Email Address: *
[e-mail]
3.
Applicant Information (if different from owner)
3a.
Name: *
Jonathan Stone
3b.
Business Name (if applicable):
Duke Energy Carolinas, LLC
3c.
Address: *
Street Address:
526 S. Church Street
Address line 2:
Click to enter.
City:
Charlotte
State/ Province/ Region:
North Carolina
Postal/ Zip Code:
28202
Country
United States
3d.
Telephone Number: * (###)###-####
[phone]
3e
Fax Number: (###)###-####
Click to enter.
Page 4 of 22 PCN Form Version 4.3- April 20, 2022

3f. Email Address: * [e-mail]
4. Agent/ Consultant (if applicable)
4a. Name: *
Johanna Velasquez
4b. Business Name:
HDR Engineering, Inc.
4c. Address: *
Street Address:
440 South Church Street
Address line 2:
Suite 1200
City:
Charlotte
State/ Province/ Region:
NC
Postal/ Zip Code:
28202
Country:
United States
4d. Telephone Number: * (###)###-####
[phone]
4e Fax Number: (###)###-####
Click to enter.
4f. Email Address: *
[e-mail]
Agent Authorization Letter:*
Attach a completed/signed agent authorization form or letter. A sample form may be found at this link:
https://www.saw. usace.army. mil/Missions/Regulatory-Permit-Program/Permits/2017-Nationwide-Permits/Pre-
construction-Notification/
Page 5 of 22 PCN Form Version 4.3- April 20, 2022

C. Project Information and Prior Project History
1. Project Information
1a. Name of project: *
Sweetwater Tap Line Relocation Project
1 b. Subdivision name (if appropriate):
N/A
1c. Nearest municipality/town: *
Hickory
2.
Project Identification
2a.
Property identification number (tax PIN or parcel ID):
371215640891 and 371210355299 (Exhibit A-1, A-
2, and A-3)
2b.
Property size (in acres):
N/A -ROW
2c.
Project Address:
Street Address:
N/A- ROW
Address line 2:
Click to enter.
City:
Click to enter.
State/ Province/ Region:
Click to enter.
Postal/ Zip Code:
Click to enter.
Country:
Click to enter.
2d.
Site coordinates in decimal degrees (using 4-6 digits
after the decimal point): *
Latitude (DD.DDDDDD): * 35.722314'
Longitude (-DD.DDDDDD): *-81.310363°
3. Surface Waters
3a. Name of nearest body of water to proposed project: *
Clark Creek
3b. Water Resources Classification of nearest receiving
C
water: *
The Surface Water Classification map may be found at this link:
https:Hncdenr. maps.arcqis.com/apps/webappviewer/index.html?id=6el 25ad7628f494694e259c8Odd64265
Catawba
3c. In what river basin(s) is your project located? *
Choose additional (if needed)
3d. Please provide the 12-digit HUC in which the project is
Upper Clark Creek 1030501020302
located:
The Find Your HUC map may be found at this link:
https:Hncdenr.maps.arc_qis.com/apps/Publicinformation/index.html?appid=ad3a85aOc6d644aOb97cdO69db238ac3
Page 6 of 22 PCN Form Version 4.3- April 20, 2022

4. Project Description and History
4a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of
this application: *
The Study Aea consists of approximately 1 mile of an existing utility line right-of-way located south of Tate
Boulevard and North 11th Avenue in the City of Hickory, North Carolina (Figure 1).
4b. Have Corps permits or DWR certifications been obtained for this
❑ Yes ❑x No ❑ Unknown
project (including all prior phases) in the past? *
If yes, please give the DWR Certification number and/or Corps
[Click to enter.]
Action ID (ex. SAW-0000-00000):
jClick to enter.]
Attach any pertinent project history documentation
4b2. Is any portion of the work already complete? *
❑ Yes ❑x No
If yes, describe the completed work.
Click to enter text.
4c. List of other certifications or approvals/denials received from other federal, state or local agencies for work
described in this application not related to the 404 or 401.
TBD
4d. Attach an 8'/2 x 11" excerpt from the most recent version of the USGS topographic map indicating the location of
the project site.
4e. Attach an 8'/2 x 11" excerpt from the most recent version of the published County NRCS Soil Survey map
depicting the project site.
4f. List the total estimated acreage of all existing wetlands on the
0.01 acres
property:
4g. List the total estimated linear feet of all existing streams (intermittent
424 linear feet
and perennial) on the property:
4g1. List the total estimated acreage of all existing open waters on the
0 acres
property:
4h. Explain the purpose of the proposed project:
The proposed Project involves the installation of a permanent culvert to provide access for work associated with
the relocation of the Sweetwater 100- kilovolt (kV) Transmission Line in Catawba County, North Carolina. The
Project area consists of approximately 1 mile of an existing utility line right-of-way located south of Tate
Boulevard and north eleventh avenue in the City of Hickory, North Carolina (Figures 1 and 2). The Sweetwater
Tap Relocation Project (Project) proposes to install the permanent culvert to provide access for the relocation of
the transmission line. Maintaining access to the utility line is critical to perform maintenance and emergency
repairs to this important infrastructure. Specifically, one Corrugated Metal Pipe (CMP) arch culvert will be
installed in order to construct an access road across a tributary to Clark Creek (Tributary 2).
4i. Describe the overall project in detail, including the type of equipment to be used: *
The Project proposes to install a new 40-foot long, 87-inch by 57-inch pipe -arch CMP culvert to provide
permanent access for the construction and maintenance associated with the Sweetwater Tap Relocation Project.
The culvert was sized to accommodate a 10-year 24-hour storm event without overtopping. Installation of the
downstream rip rap dissipation pad will result in permanent impacts below the Ordinary High Water Mark of the
tributary to Clark Creek (Tributary 2). A pump around will be implemented in order to work in the dry and will
result in temporary fill associated with impervious dikes and de -watering impacts. The culvert will be installed
approximately 1 foot below the existing stream bed at a slope that allows for passage of water and movement of
aquatic life. Standard construction equipment will be used, such as excavators, backhoes, hauling trucks, etc.
4j. Attach project drawings/site diagrams/depictions of impact areas for the proposed project.
4k. Will this activity involve dredging in wetlands or waters? *
❑ Yes ❑x No
Page 7 of 22 PCN Form Version 4.3- April 20, 2022

If yes, describe the type of dredging, the composition of the dredged material, and the locations of disposal area.
Click to enter text.
Page 8 of 22 PCN Form Version 4.3- April 20, 2022

5.
Jurisdictional Determinations
5a.
Have the wetlands or streams been delineated on the property or in
® Yes ❑ No ❑ Unknown
proposed impact areas?
Comments:
Duke Energy contracted Terracon Consultants, Inc. to survey the Project area for the presence of jurisdictional
waters of the U.S. regulated under Section 404 of the CWA and Section 10 of the Rivers and Harbors Act. The
survey investigations were conducted in May 2023 and identified three potential jurisdictional streams and one
potential jurisdictional wetland (Figure 3). A summary and maps of jurisdictional waters of the U.S., and
associated photographs are provided in Exhibit B.
5b.
If the Corps made a jurisdictional determination,
❑ Preliminary ❑ Approved ❑ Emailed concurrence
what type of determination was made? *
❑x Not Verified ❑ Unknown ❑ n/a
Corps AID number (ex. SAW-0000-00000):
Click to enter.
Name (if known): Click to enter.
5c.
If 5a is yes, who delineated the jurisdictional
Agency/Consultant Company: Terracon Consultants, Inc.
areas?
Other: Click to enter.
5d.
List the dates of the Corps jurisdictional determination or State determination if a determination was made by
either agency.
N/A
5d1.
Attach jurisdictional determinations.
6. Future Project Plans
6a. Is this a phased project?
❑ Yes ❑x No
6b. If yes, explain.
Click to enter.
Are any other NWP(s), regional general permit(s), or individual permit(s) used, or intended to be used, to
authorize any part of the proposed project or related activity? This includes other separate and distant crossings
for linear projects that require Department of the Army authorization but don't require pre -construction
notification.
No
7. Addresses of adjoining property owners, lessees, etc. whose property adjoins the waterbody (if more than can be
entered here, please attach a supplemental list)
See attached Adjacent Property Owner Mailing List (Table 1) and Catwaba County Parcels (Figure 4).
8. Scheduling of activity:
Activity is scheduled to be start as soon as authorization is received.
Page 9 of 22 PCN Form Version 4.3- April 20, 2022

D. Proposed Impacts Inventory
Impacts Summary
❑ Wetlands ❑x Streams - tributaries
la. Where are the impacts associated with your project ❑ Buffers ❑ Open Waters
(check all that apply):
❑ Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, complete this table for each wetland area impacted.
2a.
Site #*
2a 1.
Impact
Reason/Type*
2b.
Impact
Duration*
2c.
Wetland Type*
2d.
Wetland Name*
2e.
Forested
?*
2f.
Jurisdiction
Type*
2g.
Impact Area
(ac)*
W1
Choose one
Temp/ Perm
Choose one
Click to enter
Y/N
Choose one
Click to enter
W2
Choose one
Temp/ Perm
Choose one
Click to enter
Y/N
Choose one
Click to enter
W3
Choose one
Temp/ Perm
Choose one
Click to enter
Y/N
Choose one
Click to enter
W4
Choose one
Temp/ Perm
Choose one
Click to enter
Y/N
Choose one
Click to enter
W5
Choose one
Temp/ Perm
Choose one
Click to enter
Y/N
Choose one
Click to enter
W6
Choose one
Temp/ Perm
Choose one
Click to enter
Y/N
Choose one
Click to enter
W7
Choose one
Temp/ Perm
Choose one
Click to enter
Y/N
Choose one
Click to enter
W8
Choose one
Temp/ Perm
Choose one
Click to enter
Y/N
Choose one
Click to enter
W9
Choose one
Temp/ Perm
Choose one
Click to enter
Y/N
Choose one
Click to enter
W10
Choose one
Temp/ Perm
Choose one
Click to enter
Y/N
Choose one
Click to enter
W11
Choose one
Temp/ Perm
Choose one
Click to enter
Y/N
Choose one
Click to enter
W12
Choose one
Temp/ Perm
Choose one
Click to enter
Y/N
Choose one
Click to enter
W13
Choose one
Temp/ Perm
Choose one
Click to enter
Y/N
Choose one
Click to enter
W14
Choose one
Temp/ Perm
Choose one
Click to enter
Y/N
Choose one
Click to enter
W15
Choose one
Temp/ Perm
Choose one
Click to enter
Y/N
Choose one
Click to enter
2g1. Total temporary wetland impacts
Click to enter. ac
2g2. Total permanent wetland impacts
Click to enter. ac
2g3. Total wetland impacts
ac
2h. Type(s) of material being discharged and the amount of each type in cubic yards:
Click to enter text.
2i. Comments:
No impacts to jurisdictional wetlands are anticipated.
Page 10 of 22 PCN Form Version 4.3- April 20, 2022

3. Stream Impacts
If there are perennial or intermittent stream/ tributary impacts (including temporary impacts) proposed on the site,
complete this table for all stream/ tributary sites impacted.
** All Perennial or Intermittent streams must be verified by DWR or delegated local government
Site #*
3a
Impact
Reason*
3b.
Impact
Duration*
3c.
Impact Type*
3d.
Stream Name*
3e.
Stream
Type*
3f.
Jurisdiction
Type*
3g.
Stream Width
(avg ft) *
3h.
Impact length
(linear ft)
S1
Culvert
Permanent
Crossing/
Culvert
Tributary 2- T2
Intermittent
Both
5
40
S2
Dissipation
Pad
Permanent
Fill (Incl.
Riprap)
Tributary 2— T2
Intermittent
Both
5
34
S3
Pump -Around
Temporary
Dewatering
Tributary 2- T2
Intermittent
Both
5
20
S4
Click to enter
Temp/ Perm
Choose one
Click to enter
Per/Int
Choose one
Click to enter
Click to enter
S5
Click to enter
Temp/ Perm
Choose one
Click to enter
Per/Int
Choose one
Click to enter
Click to enter
S6
Click to enter
Temp/ Perm
Choose one
Click to enter
Per/Int
Choose one
Click to enter
Click to enter
S7
Click to enter
Temp/ Perm
Choose one
Click to enter
Per/Int
Choose one
Click to enter
Click to enter
S8
Click to enter
Temp/ Perm
Choose one
Click to enter
Per/Int
Choose one
Click to enter
Click to enter
S9
Click to enter
Temp/ Perm
Choose one
Click to enter
Per/Int
Choose one
Click to enter
Click to enter
S10
Click to enter
Temp/ Perm
Choose one
Click to enter
Per/Int
Choose one
Click to enter
Click to enter
S11
Click to enter
Temp/ Perm
Choose one
Click to enter
Per/Int
Choose one
Click to enter
Click to enter
S12
Click to enter
Temp/ Perm
Choose one
Click to enter
Per/Int
Choose one
Click to enter
Click to enter
S13
Click to enter
Temp/ Perm
Choose one
Click to enter
Per/Int
Choose one
Click to enter
Click to enter
S14
Click to enter
Temp/ Perm
Choose one
Click to enter
Per/Int
Choose one
Click to enter
Click to enter
S15
Click to enter
Temp/ Perm
Choose one
Click to enter
Per/Int
Choose one
Click to enter
Click to enter
S16
Click to enter
Temp/ Perm
Choose one
Click to enter
Per/Int
Choose one
Click to enter
Click to enter
S17
Click to enter
Temp/ Perm
Choose one
Click to enter
Per/Int
Choose one
Click to enter
Click to enter
S18
Click to enter
Temp/ Perm
Choose one
Click to enter
Per/Int
Choose one
Click to enter
Click to enter
S19
Click to enter
Temp/ Perm
Choose one
Click to enter
Per/Int
Choose one
Click to enter
Click to enter
S20
Click to enter
Temp/ Perm
Choose one
Click to enter
Per/Int
Choose one
Click to enter
Click to enter
3i1. Total jurisdictional ditch
impact:
0 linear ft
M. Total permanent stream
impacts:
74 linear ft
M. Total temporary stream
impacts:
20 linear ft
34. Total stream and ditch
impacts:
94 linear ft
3j. Comments:
The culvert installation will result in 74 If of permanent stream (-0.007 ac), and 20 If of temporary impacts
(-0.002 ac.) associated with dewatering activities.
Page 11 of 22 PCN Form Version 4.3- April 20, 2022

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., individually list all open water impacts in the table below.
4a.
Site #*
4a 1.
Impact Reason
4b.
Impact
Duration*
4c.
Waterbody Name*
4d.
Activity Type*
4e.
Waterbody
Type*
4f.
Impact area
(ac)*
01
Click to enter.
Temp/ Perm
Click to enter.
Choose one
Choose one
Click to enter.
02
Click to enter.
Temp/ Perm
Click to enter.
Choose one
Choose one
Click to enter.
03
Click to enter.
Temp/ Perm
Click to enter.
Choose one
Choose one
Click to enter.
04
Click to enter.
Temp/ Perm
Click to enter.
Choose one
Choose one
Click to enter.
05
Click to enter.
Temp/ Perm
Click to enter.
Choose one
I Choose one
Click to enter.
4g.
Total temporary open water impacts
Click to enter. ac
4g.
Total permanent open water impacts
Click to enter. ac
4g.
Total open water impacts
Click to enter. ac
4h.
Comments:
No impacts to open waters are anticipated.
5.
Pond or Lake Construction
If pond or lake construction is proposed, complete the table
below. (*This
does NOT include offline stormwater
management ponds.)
5a.
5b.
5c.
5d.
5e.
Pond ID
Proposed use or
Wetland Impacts (ac)
Stream
Impacts (ft)
Upland
#
purpose of pond
Impacts (ac)
Flooded
Filled
Excavated
Flooded
Filled
Excavated
Click to
Click to
Click to
Click to
Click to
Click to
Click to
P1
Choose one
enter.
enter.
enter.
enter.
enter.
enter.
enter.
P2
Choose one
Click to
Click to
Click to
Click to
Click to
Click to
Click to
enter.
enter.
enter.
enter.
enter.
enter.
enter.
P3
Choose one
Click to
Click to
Click to
Click to
Click to
Click to
Click to
enter.
enter.
enter.
enter.
enter.
enter.
enter.
5f.
Total
Click to
Click to
Click to
Click to
Click to
Click to
Click to
enter.
enter.
enter.
enter.
enter.
enter.
enter.
5g.
Comments:
No impacts to ponds or lakes are proposed as a result of this
Project.
5h.
Is a dam high hazard permit required?
❑ Yes ❑ No
If yes, permit ID no.:
Click to enter.
5i.
Expected pond surface area (acres):
Click to enter.
5j.
Size of pond watershed (acres):
Click to enter.
5k.
Method of construction:
Click to enter.
Page 12 of 22 PCN Form Version 4.3- April 20, 2022

6. Buffer Impacts (DWR requirement)
If project will impact a protected riparian buffer, then complete the chart below. Individually list all buffer impacts.
6a. Project is in which protected basin(s)?
* (Check all that apply.)
❑ Neuse ❑ Tar -Pamlico ❑ Catawba
❑ Jordan ❑ Goose Creek ❑ Randleman
❑ Other: Click to enter.
Site #*
6b.
Impact Type*
6c.
Impact Duration*
6d.
Stream Name*
6e.
Buffer
Mitigation
Required?*
6f.
Zone 1 Impact*
(sq ft)
6g.
Zone 2 Impact*
(sq ft)
131
Choose one
Temp/ Perm
Click to enter.
Y/N
Click to enter.
Click to enter.
B2
Choose one
Temp/ Perm
Click to enter.
Y/N
Click to enter.
Click to enter.
B3
Choose one
Temp/ Perm
Click to enter.
Y/N
Click to enter.
Click to enter.
B4
Choose one
Temp/ Perm
Click to enter.
Y/N
Click to enter.
Click to enter.
B5
Choose one
Temp/ Perm
Click to enter.
Y/N
Click to enter.
Click to enter.
B6
Choose one
Temp/ Perm
Click to enter.
Y/N
Click to enter.
Click to enter.
B7
Choose one
Temp/ Perm
Click to enter.
Y/N
Click to enter.
Click to enter.
B8
Choose one
Temp/ Perm
Click to enter.
Y/N
Click to enter.
Click to enter.
B9
Choose one
Temp/ Perm
Click to enter.
Y/N
Click to enter.
Click to enter.
B10
Choose one
Temp/ Perm
Click to enter.
Y/N
Click to enter.
Click to enter.
1311
Choose one
Temp/ Perm
Click to enter.
Y/N
Click to enter.
Click to enter.
B12
Choose one
Temp/ Perm
Click to enter.
Y/N
Click to enter.
Click to enter.
B13
Choose one
Temp/ Perm
Click to enter.
Y/N
Click to enter.
Click to enter.
B14
Choose one
Temp/ Perm
Click to enter.
Y/N
Click to enter.
Click to enter.
B15
Choose one
Temp/ Perm
Click to enter.
Y/N
Click to enter.
Click to enter.
B16
Choose one
Temp/ Perm
Click to enter.
Y/N
Click to enter.
Click to enter.
B17
Choose one
Temp/ Perm
Click to enter.
Y/N
Click to enter.
Click to enter.
B18
Choose one
Temp/ Perm
Click to enter.
Y/N
Click to enter.
Click to enter.
B19
Choose one
Temp/ Perm
Click to enter.
Y/N
Click to enter.
Click to enter.
B20
Choose one
Temp/ Perm
Click to enter.
Y/N
Click to enter.
Click to enter.
6h. Total temporary impacts:
Zone 1: Click to enter. sq ft
Zone 2: Click to enter. sq ft
6h. Total permanent impacts:
Zone 1: Click to enter. sq ft
Zone 2: Click to enter. sq ft
6h. Total combined buffer impacts:
Zone 1: Click to enter. sq ft
Zone 2: Click to enter. sq ft
6i. Comments:
The Study Area is located in the Catawba River Basin. Per the Catawba River Basin riparian buffer rules, a 50-
foot buffer applies to all shorelines along Catawba River mainstem below Lake James to the North Carolina/South
Carolina border and all shorelines of the Catawba mainstem lakes. The Project is not located along the mainstem
of the Catawba River, therefore this buffer requirement does not apply to the Project.
Please attach supporting documentation (impact maps, plan sheets, etc.) for the proposed project.
Page 13 of 22 PCN Form Version 4.3- April 20, 2022

E. Impact Justification and Mitigation
1. Avoidance and Minimization
1 a. Specifically describe measures taken to avoid or minimize the proposed impacts through project design:
The proposed Project has been designed to avoid and minimize impacts to jurisdictional surface waters. Duke
Energy contracted Terracon Consultants, Inc. to survey the Project area for the presence of jurisdictional waters
of the U.S. regulated under Section 404 of the Clean Water Act and Section 10 of the Rivers and Harbors Act.
The field survey was conducted in May 2023 and the investigations aided the Project's design to avoid and
minimize impacts to jurisdictional surface waters. The delineation identified 3 streams and 1 wetland within the
Project. Furthermore, the stream crossing has been designed to minimize permanent impacts to the maximum
extent possible. The length of the proposed culvert was reduced from 90 feet in length (original design, due to
site conditions) to a 40-foot-long arched CMP culvert. The culvert design (Exhibit D) as well as other engineering
construction alternatives have allowed to the permanent impacts to Tributary 2 to be reduced by 50 feet.
1 b. Specifically describe measures taken to avoid or minimize proposed impacts through construction techniques:
The culvert installation will be conducted in a manner that will promote safe passage of fish and other organic
organisms. Specifically, the culvert will be buried 1-foot below the stream bed (Exhibit C — Detail 10, Sheet
PED3).
Erosion control measures will be installed to encompass the construction limits prior to construction. The E&SC
plan will be implemented during construction to prevent sedimentation impacts to water resources. Best
Management Practices (BMP) will include installing protective silt fencing. The work area will be inspected daily
for signs of erosion or degradation and BMP device failure.
Pump-arounds or bypass flume will be installed to allow for work to be completed within a dry workspace and
water will be passed through a sediment filter bag before returning to the stream.
Pump(s) will be sized accordingly to convey normal stream flow.
Dewatering will be conducted through a silt bag or sedimentation control measure that is located within the
easement and outside of any wetland area (Exhibit C —Detail No. 8, Sheet PED2).
Mechanical equipment will not operate within streams or traverse the stream without the use of a temporary
bridge.
No wastes, spoils, or fill will be placed within the stream, or riparian areas beyond the permitted disturbance
limits.
Equipment will be kept within construction limits and disturbance minimized by the use of timber mats. Refueling
of equipment will be conducted in upland areas away from waterbodies.
2. Compensatory Mitigation for Impacts to Waters of the U.S., Waters of the State, or Riparian Buffers
2a. If compensatory mitigation is required, by whom is it required? * ❑ DWR ❑ Corps
(check all that apply)
2b. If yes, which mitigation option(s) will be used for this ❑ Mitigation Bank
project? * (check all that apply) ❑ In Lieu Fee Program
❑ Permittee Responsible Mitigation
3. Complete if using a Mitigation Bank
(Must satisfy NC General Statute143-214.11 (d1).)
3a. Name of mitigation bank:
Click to enter.
3b. Credits purchased/requested:
Type: Choose one
Quantity Click to enter.
Type: Choose one
Quantity Click to enter.
Type: Choose one
Quantity Click to enter.
Attach receipt and/or approval letter.
Page 14 of 22 PCN Form Version 4.3- April 20, 2022

3c. Comments:
N/A
4.
Complete if Using an In Lieu Fee Program
4a. Attach approval letter from in lieu fee program.
4b.
Stream mitigation requested:
Click to enter. linear feet
4c.
If using stream mitigation, what is the stream temperature:
Choose one
NC Stream Temperature Classification Maps can be found under the Mitigation Concepts tab on the Wilmington
District's RIBITS website: (Please use the filter and select Wilmington district)
https://ribits.usace.army.mil/ribits apex/f?p=107:27:2734709611497::NO: RP:P27 BUTTON KEY:O
4d.
Buffer mitigation requested (DWR only):
Click to enter. square feet
4e.
Riparian wetland mitigation requested:
Click to enter. acres
4f.
Non -riparian wetland mitigation requested:
Click to enter. acres
4g.
Coastal (tidal) wetland mitigation requested:
Click to enter. acres
4h.
Comments:
N/A
5. Complete if Providing a Permittee Responsible Mitigation Plan
5a. If proposing a permittee responsible mitigation plan, provide a description of the proposed mitigation plan,
including mitigation credits generated.
Click to enter.
5b. Attach mitigation plan/documentation.
6.
Buffer Mitigation (State Regulated Riparian Buffer Rules) — DWR requirement
6a.
Will the project result in an impact within a protected riparian buffer
❑ Yes ❑x No
that requires buffer mitigation?
If yes, please complete this entire section — please contact DWR for more information.
6b.
If yes, identify the square feet of impact to each zone of the riparian buffer that requires
mitigation. Calculate the
amount of mitigation required in the table below.
6c.
6d.
6e.
Zone
Reason for impact
Total impact
Multiplier
Required mitigation
(square feet)
(square feet)
Zone
1
Click to enter.
Click to enter.
Choose one
Click to enter.
Zone
2
Click to enter.
Click to enter.
Choose one
Click to enter.
6f. Total buffer mitigation required
Click to enter.
6g.
If buffer mitigation is required, is payment to a mitigation bank or
❑ Yes ❑ No
NC Division of Mitigation Services proposed?
6h.
If yes, attach the acceptance letter from the mitigation bank or NC Division of Mitigation Services.
6i.
Comments:
N/A
Page 15 of 22 PCN Form Version 4.3- April 20, 2022

Page 16 of 22 PCN Form Version 4.3- April 20, 2022

F. Stormwater Management and Diffuse Flow Plan (DWR requirement)
1. Diffuse Flow Plan
1a. Does the project include or is it adjacent to protected riparian buffers
❑ Yes ® No
identified within one of the NC Riparian Buffer Protection Rules?
1 b. All buffer impacts and high ground impacts require diffuse flow or other form of stormwater treatment. If the
project is subject to a state implemented riparian buffer protection program, include a plan that fully documents
how diffuse/dispersed flow will be maintained.
All Stormwater Control Measures (SCM) must be designed in accordance with the NC Stormwater Design
Manual (httr)s://deg.nc.gov/about/divisions/energy-mineral-land-resources/energy-mineral-land-r)ermit-
guidance/stormwater-bmp-manual).
Associated supplement forms and other documentation must be provided.
❑ Level Spreader
What Type of SCM are you
❑ Vegetated Conveyance (lower seasonal high water table- SHWT)
providing?
❑ Wetland Swale (higher SHWT)
(Check all that apply)
❑ Other SCM that removes minimum 30% nitrogen
❑ Proposed project will not create concentrated stormwater flow through the
buffer
For a list of options to meet the diffuse flow requirements, click here.
Attach diffuse flow documentation.
2.
Stormwater Management Plan
2a.
Is this an NCDOT project subject to compliance with NCDOT's
Individual NPDES permit NCS000250? *
❑ Yes ® No
2b.
Does this project meet the requirements for low density projects as
defined in 15A NCAC 02H .1003(2)? *
®Yes El No
To look up low density requirements, click here:
http://reports.oah.state. nc. us/ncac/title%2015a%20-%20environmental %20guality/chapter%2002%20-
%20environmental%20management/subchapter%20h/15a%20ncac%2002h%20.1003.pdf
2c.
Does this project have a stormwater management plan (SMP)
❑ Yes ❑ No
reviewed and approved under a state stormwater program or state -
approved local government stormwater program? *
© n/a — project disturbs < 1 acre
Note: Projects that have vested rights, exemptions, or grandfathering from state or locally implemented
stormwater programs or projects that satisfy state or locally -implemented stormwater programs through use of
community in -lieu programs should answer "no" to this question.
2d.
Which of the following stormwater management program(s) apply?
❑ Local Government
(Check all that apply.)*
E State
If you have local government approval, please include the SMP on their overall impact map.
❑ Phase II ❑ USMP
Local Government Stormwater Programs *
❑ NSW ❑ Water Supply
Page 17 of 22 PCN Form Version 4.3- April 20, 2022

Please identify which local government stormwater program you are using.
Click to enter.
State Stormwater Programs * ❑ Phase II ❑x HQW or ORW
❑ Coastal Counties ❑ Other
Comments:
Click to enter.
Page 18 of 22 PCN Form Version 4.3- April 20, 2022

G. Supplementary Information
1. Environmental Documentation
1 a. Does the project involve an expenditure of public (federal/state/local)
❑ Yes ® No
funds or the 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 (North Carolina) Environmental
❑ Yes ❑ No
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
❑ Yes ❑ No
NEPA or SEPA final approval letter.)
Comments:
N/A
2. Violations (DWR Requirement)
2a. Is the site in violation of DWR Water Quality Certification Rules (15A
NCAC 2H .0500), Isolated Wetland Rules (15A NCAC 2H .1300),
Federally Non -Jurisdictional Wetlands /Classified Surface Waters
❑ Yes ❑x No
(15A NCAC 2H. 1400) DWR Surface Water or Wetland Standards or
Riparian Buffer Rules (15A NCAC 2B .0200)?
2b. If you answered "yes" to the above question, provide an explanation of the violation(s):
Click to enter.
3. Cumulative Impacts (DWR Requirement)
3a. Will this project (based on past and reasonably anticipated future
impacts) result in additional development, which could impact nearby
❑ Yes ❑x No
downstream water quality? *
3b. If you answered "no", provide a short narrative description:
This project is privately funded and will not require a cumulative impact analysis. Best management practices
will be deployed through the duration of the project. The completed project is not anticipated to result in
incremental adverse affects to downstream water quality.
3c. If yes, provide a qualitative or quantitative cumulative impact analysis in accordance with the most recent DWR
policy. (Attach .pdf)
4. Sewage Disposal (DWR Requirement)
4a. Is sewage disposal required by DWR for this project? * ❑ Yes ❑ No ❑x N/A
Page 19 of 22 PCN Form Version 4.3- April 20, 2022

4b. If yes, describe in detail the treatment methods and dispositions (non -discharge or discharge) of wastewater
generated from the proposed project. If the wastewater will be treated at a treatment plant, list the capacity
available at that plant.
Click to enter.
5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected
® Yes ❑ No
species or habitat? (IPAC weblink: https://www.fws.gov/ipac/ rfws.govl)
5b. Have you checked with the USFWS concerning Endangered Species
❑ Yes ❑x No
Act impacts? *
5c. If yes, indicate the USFWS Field Office you have contacted.
Choose one
5d. Is another federal agency involved? *
❑ Yes © No ❑ Unknown
If yes, which federal agency?
Click to enter.
5e. Is this a DOT project located within Divisions 1-8? *
❑ Yes ® No
5f. Will you cut any trees in order to conduct the work in waters of the
U.S.? *
®Yes El No
5g. Does this project involve bridge maintenance or removal? *
❑ Yes ❑x No
5g1. If yes, have you inspected the bridge for signs of bat use such as
staining, guano, bats, etc.? Representative photos of signs of bat use
❑ Yes ❑ No
can be found in the NLEB SLOPES, Appendix F, pages 3-7.
Representative photos of signs of bat use can be found in the NLEB SLOPES, Appendix F, pages 3-7. Link to
NLEB SLOPES document: http://saw-reg.usace.army.miI/NLEB/1-30-17-signed NLEB-SLOPES&apps.pdf
If you answered yes to 5g1, did you discover any signs of bat use? *
❑ Yes ❑ No ❑ Unknown
If yes, please show the location of the bridge on the permit drawings/ project plans
5h. Does this project involve the construction/ installation of a wind
turbine(s)? *
El Yes ❑x No
If yes, please show the location of the wind turbine(s) on the permit drawings/ project plans (attach .pdf)
5i. Does this project involve blasting and /or other percussive activities
that will be conducted by machines, such as jackhammers,
❑ Yes ❑x No
mechanized pile drivers, etc.? *
If yes, please provide details to include type of percussive activity, purpose, duration, and specific location of this
activity on the property (attach .pdf)
5j. What data sources did you use to determine whether your site would impact Endangered Species or Designated
Critical Habitat? *
USFWS information for Planning and Conservation (IPaC) online mapping system for information on threatened
and endangered species.
Attach consultation documentation.
6. Essential Fish Habitat (Corps Requirement)
Page 20 of 22 PCN Form Version 4.3- April 20, 2022

6a. Will this project occur in or near an area designated as
an Essential Fish Habitat? *
❑ Yes ❑x No
Is there submerged aquatic vegetation (SAV) around
the project vicinity? *
El Yes ❑x No El Unknown
Will this project affect submerged aquatic vegetation? *
❑ Yes ❑ No ❑x Unknown
Explain: Click to enter.
6b. What data source(s) did you use to determine whether your site would impact Essential Fish Habitat?
The National Oceanic and Atmospheric Administration Inland, Essential Fish Habitat (EFH) Mapper. The query
indicated that no EFH consultation was necessary.
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
Link to the State Historic Preservation Office Historic Properties Map (does not include archaeological data):
http://gis.ncdcr.gov/hpoweb/
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 status (e.g., National Historic Trust designation or
❑Yes 0 No
properties significant in North Carolina history and archaeology)?
7b. What data source(s) did you use to determine whether your site would impact historic or archeological
resources? *
North Carolina State Historic Preservation Office (SHPO) HPOWEB GIS service database was queried on May
5, 2023 and revealed that no historical resources were located within the project study area. Two cultural
resources were mapped within a 0.5-mile radius of the Project; however, their status was "unasssed and gone".
7c. Attach historic or prehistoric documentation.
8. Flood Zone Designation (Corps Requirement)
Link to the FEMA Floodplain Maps: https:Hmsc.fema.gov/portal/search
8a. Will this project occur in a FEMA-designated 100-year floodplain? *
❑ Yes ❑x No
8b. If yes, explain how the project meets FEMA requirements.
Click to enter.
8c. What source(s) did you use to make the floodplain determination?
Flood Insurance Rate Map (FIRM) Map Panel 3710371200J, eff. 9/5/2007 (Figure 5).
H. Miscellaneous
Comments:
Click to enter.
Attach pertinent documentation or attachments not previously requested
Page 21 of 22 PCN Form Version 4.3- April 20, 2022

I. Signature *
❑x By checking the box and signing below, I, as the project proponent, certify to the following:
• The project proponent hereby certifies that all information contained herein is true, accurate, and complete, to
the best of my knowledge and belief;
• The project proponent hereby requests that the certifying authority review and take action on this CWA 401
certification request within the applicable reasonable period of time;
• The project proponent hereby agrees that submission of this PCN form is a "transaction" subject to Chapter
66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act");
• The project proponent hereby agrees to conduct this transaction by electronic means pursuant to Chapter 66,
Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act');
• The project proponent hereby understands that an electronic signature has the same legal effect and can be
enforced in the same way as a written signature; AND
• As the project proponent, I intend to electronically sign and submit the PCN/online form.
Full Name: * Johanna Velasquez
Signature: * Click to enter.
Date: * Click to enter.
Page 22 of 22 PCN Form Version 4.3- April 20, 2022

Figure 1
e r-Rhyne
College
Highland
A vo
�F
F pve Or SE
Sweetwater of
Tale 31vd SE
m
0
h
V 3
F o.
,tp a e
SF
\� O
icon Ex-prisone \ \ � ra of H.ar
Fairbrook
Legend
p.>ti>a
Project Study Area
0 500 1,000
Source: USGS Latest Topographic Map 2022; Project Study Area
Provided by Duke Energy
U.r DUKE
Feet
Feet
ENERGY
N- VegeWRon l or anendbn of
la or and logy aver urinal one
Oisslaimer: The information tle ctetl on this R for infornational pumosea on y
Q Catawba River Basin
evaluation an aRec[lurisdid'anal sbtus
and may require r&evaluationofwetiand
prepare ga gineering purposes.
amd was not d bq and is not suitabkufor le l or our
This information presented is not for regulatory review and is
intended for uae only by a Professional Land Surveyor to regulatory review.
boundarie . prior
Project:
Wr Con
USGS Topographic
70237263
Date:
-^
Sweetwater Ret Tap Hickory B&W - 100kV Relocation
Ma 2023
Drwn/Chkd: NR/JH
2491&eMwoed Reed, aaite,W Raleigh, NC27W4
7
Catawba County, NC
Figure: 1
Ph.. : P19)873-2211 Fax. (919)893-

er-Rhyne
College
High lend
q po
�F
F pve Or SE
Sweetwater u
Tate 31vd SE
m
0
y @ xrI
h
V 3
N C
m tth
sF
icon Ex_prisoners of \ \
N'ar
Fairbrook
Cg132
_ - f
- CgC2
P-fB
t • �'�.
Legend lk' f-r
Project Study Area �""""' - ? • .
ud.•
NRCS Soil Mapping Units lr
Soil Mapping Units �, =
CfB: Clifford sandy loam, 2-6% slopes " rF CfB
CfC: Clifford sandy loam, 6-10% slopes ' O
CsA: Codorus loam, 0-2% slopes, frequently flooded
FaE3: Fairview clay loam, 10-25% slopes, severely eroded FdE�2
FcC: Fairview gravelly fine sandy loam, 6-10% slopes
FdE2: Fairview soils, 10-25% slopes, moderately eroded
Ud: Udorthents, loamy and clayey
0 150 300 Source: Latest High -Resolution NC Statewide Orthoimagery, NC
OnelVap Server, Project Study Area provided by Duke Energy NRCS
DUKE Web Soil Survey 2023
It DUKE
N Feet
NsteoVegeWRonoremoval or ft.ratien of Disclaimer: The information depicted on this figure is for informational purposes only
Is or hyd IogyafierinNalsbe and was not prepared for, and is notsuitable for legal orengineedng purposes.
evaluation an aRec[urisdid'anal sbtus This information t d is not for re Ito d is
Q Catawba River Basin and may require ree lu.fibhofwetland intended for use on b Professional Land Surve a ry re ewanl t
bound.d.. only by yor pdoro regua ory review.
Project: 70237263
Wraean NRCS Soils Date:
^a) Sweetwater Ret Tap Hickory B&W - 100kV Relocation Ma 2023
Drwn/Chkd: NR/JH
gam P19)d 3-2211 te,W .. (919 Ne]9fD4 Catawba County, NC
Ph.. : (g,9la,a-z:„ Fax: (919)e93-9555 Figure: 2

e -Rhyne
.x
J�
College
Highland
t :
'
A vc
F Or SE
Pye Sweetwater 4
Tate 31vd SE
y
m
o
,M1�h
I
h
c
• ff
m
sF
T1a
o
�\
icon E'-Prisoners
Clark Creek
90 LF
w1
-e_
or \ T2
H,ar UT to Clark Creek
Hwy 154 LF
Headwater -
Fairbrook
m
Tlb
Clark Creek
- _ -
139 LF
_
.,
J a
r ;F
I°
Legend
0 Project Study Area
® Potential Wetlands
— Potential Tributaries
AL
tr
T3w.t.-
✓~'r� 3: UT to Clark Creek
42 LF
0 150 300 Source: Latest High -Resolution NC Statewide Orthoirragery, NC
OneMap Server, Project Study Area provided by Duke Energy
U'DUKE Feet
ENERGY N NoteoVegeWdonFeet for ale not Oiaslaimer: The information tle detl on this figure for infornational
Is or Iryd logy after mibal one and was not d fop and is not a itabkufor le l or on pumoeee s. y
evaluation an a Rest lurisdid'amal status prepare ga gineedng purposes.
rI Catawba River Basin and may require revaluation of wetland This information presented is not for regulatory review and is
boundarie . intended for use only by. Professional Land Surveyor prior to regulatory review.
Project: 70237263
r Potential Wetlands and Waters
F �CVJR n Date: Ma 2023
^a) Sweetwater Ret Tap Hickory B&W -100kV Relocation
Drwn/Chkd: NR/JH
Ph. Brentwood 3-2211 te,m .. (919 Nez-soa Catawba County, NO
Ph.. (e,9la,a-z:„ Fax: (919)a93-9555 Figure: 3

Q Study Area
Adjacent Parcel
Catawba County Parcel
DATA SOURCE: Bing Hybrid Aerial Imagery
MEET!!!
Caldwell Alexander
County County
iredell
Burke County County
Catawba
County
Lincoln
County
Gaston County
IL,
L
SWEETWATER TAP RELOCATION PROJECT
FYZ �'DLIKE IrNERGY o 250 Feet CATAWBA COUNTY PARCELS
Figure 4

H
L
LL
Ca
N
m
N
R mromnv
°
O
c
N
p
N
N Y Y E
a >
R
W
O Q
0 0
R L
2 3 3
-p a 3
Y GJ7
m
p X 2
'O
R
2
a
O
N
N
? LL
c m
y0
N
R
O_
c
Q C C
N
W
LL O O N
¢ N
y
N m
N T
a R
N V c
U 0
o LL Y
rl R N N
O
O
N
c
a
O
C N
Y> p R Cc..0+
o y
O p. a
c p
C
R L °
N a
N m
IL
O o
m a
li m O
m° '�
U U c
m m Y
Y S O.R.
v ap aai Z o
R 2
E
Y
y
N
> o
N m N N O N C li
o U w v m c
U) O T
W
m C N d
N
Q O S N LL
ILL N
C O
rL
C
U Y
•V w R O p R w O.
H N F
O
C C
Y Y
m
0 >-
O
0
c
N O p fy
a y '� o o
t c t
o a Q R
N N
R N R
i> i
R N
i
R
i
@ N
>
N am+ N tm/l (N6 a
O R E 2N
2
O O 'mO R
t
1i U Q J Q
Q W
Q
t
U J
U$ U 0o 'J U d 2
N
LL
W
O W
LLa
fn¢
22
22
wa
a
wc~i
Oa
J G
Q S
2 =
Q O
2
W
C.3
LL
=o
2
o
U)i
a¢
f/1 2
H LL
Q
d=
N
R N
fl.
O.
z
od
°ms
r. L
E R
-.0
R N
E�yw
roo
c m
O a
Y F a by
O o y 0
m
N a °
O m N
O a +L+ t
a a R N
°p
R >
'E'
£ R�
w N d
� >, R R
i ¢
m Y
yam
aw0j �RNd
is
LR
° 6�.l
E£6
o
Ow
R
NaO y
¢>
w42
a@E°
E p N R
O
Uw O c
0 Z O
y y-
a O
p
W O O.
c` N N N a
O E> i
N NR N
Y R- N
O N �+
LL c E
R N\ C C
w f V a E
El®HO
C R
aL+ °
d
\NedOl
.6R!U
R
"OR
a
Rp
E
!N0 Z. i
2ORN.
Oc
E NY
Z
->cm'o
£0W
Z
O. N
a
,
°OUN mcN
Em2
O
0
�°CREc
EcCQJ>'
R �aO
E m
i O
O
O
N
0
0
0
0
C
0
CD
0
N
0
M
N
O
N
a
R
cu
0
cu
Z
ai
U
i
0
O
a
N
by
R
a
R
N
N
R
m

3819 ❑636
Exhibit A-1
z.I .. .TEXHST
,
1
• OU VAS, LLC,
1
_ L '. .VN ON TN15
UAIA
SURVEY FEET I,i:I
c
I15 PRQ-i RTY ;S LOW, E4lti
I IA2ARb 2.0W ".A[ ' AS 00MD9
• . �;i;iA MAPi�b 3T1037f3[1I71.
9
O
- _-- -;= -b'AY WIT)N rOR LINE lSCK7 ISISE PL4
vA
q: F. 0�nJG T 73-L71.
A-1PROXI1MATE LOCATION OF
20' SANITARY SEWER EASEMFNT
. — (PB 71, PG 741 l-
_ --
PARCEL371210355299
MAR'Ih MARIfTTA
MATERIALS REAL FSTATE
INIESTM5NT5, INC.-
_ OH 31!]6, FG �12
P6 71, °G 74
a3,
' poi r
4 aI
` � l'l
--- � iI�� `Rap
SEE INSERT ON SHEE1 3
QUARRY CORNER, LLC
DB 2086, FIG 1051
MR38•PG114 —_
998 5i7,_ FT„ 0.023 AC.
fOTA{-AREA 184,800SQ rT..
ACCLUIREO 4-242 ACRES
TOTAL AREA 111,387 SC- FT-,
I\ RELEASED 1.5: i ACRES
. PARCLL37_2_S640891
MAR -IN MARII77rh
MATERIALS, INC
❑S 2955, PG 736
zz7HAVENU
SSE
+ + y -, -.....- u s`-,
I' i CRTiFY THAT 7 HIS MAP WAS DRAWN UNDER MYyyyyya+►��`
SUPERV!$10N FROM AN ACTUAL SURVEY MADE UNDER M;:- .., ,._ .. };SON. Pi.S, CFRTIFY THAT TH 5
SUPERV S10N FROM 0E=04ESCRIPTI0N RF.CC]p7E1) IN 800K .: r; ;,: .+ li'; R RAYSU] ERVISIflN ANC7 r ;.
AND PACE SHOWN; THAT THE BOUNDARIES NOT SURVEYED ARE j PO ICWIryG ;•, ;l.Ai ION WAS USED TO PERFOP5:'
INDICATED AND DRAWN 'ROM INFORMATION FOUND INBOOK ` THE SURVEY.
AND PAGE SHOWN; TRAT THE RA'i100; PRECISION 15GREATER '
THAN 1-lU,1300, AND THAT THIS PA AP N*F fS THE I (II)CLASS OF SUc. ;z • .I -ASS A
REQUIREMENTS OPT]+E STANCARDS OF PRACT-ICE FOR LAND I I 1}POSII10NAL ACCURACY r G 1M'
5URVEYING IN NORTH CARO,!NA.122 NCAC56.1500j. �
WITryK55 NYORiGIN& SIGNATL,Rt, IICENSE NUMBER, A\❑ I 31TY9E OF GPS FIELDIPAQCEDJHF VMS
SEAL THIS I I. (41DATf 0� SURVEY: 03-15-3022
TH15 24TH DAY OF MARCH 2023. ( SIDAIUM/EPOCf I' NA 83I20111
(6)PIrf)IQ F1T1riKF ] 0032 [7!. USED: CAST
(1)GFi71p tvlGbEt. G':flFp]?A
(8jC0MI31NF.p GRID FACTOR(S)- 0-999835543
STOPHER . GLOSSON, PIS l-$415 (9)UNITS! MFiEPS CONVF.RTE D T 0 V5 5URWy Ff E7
SITE: 000894 FOR SOUICE OF THE RFFFR TO U.Bk. 31S9, 9G 1479 & D.3k. 2955, PC 736 5HEET1 Dr 3
DUKE ENERGY CAROLINAS, LLC
SWEETWATER RETAILTAP 100KV RELOCATION DUKE
IiIL=,_C]' V,AY' 7+HIRIT E
(CARTINES �RIITT.S INVESMATNRTMENTS
INC.� EI�ER�Y
ESTATE INV�'S?'3fENT5 I.
k 1IdRTIAF MARrRIPTA MATRRIAIS 1,VV .
TOWN OF HICKORY CA71AWBA (_0JN7Y, N-C
BOOK: 407' O 411a' 80u ] 200 C*;? vv Lr 1,4
_)ATC- 03.24.:[l';R DRAWN BY CC[ J
Sck.F ]"=4LQ' SCA_ I f IN H.O.P.="A0,400• 1
Fl:ET
LANiT LIN11.=801207 MAP 0088.1-U10416

3819 0637
Exhibit A-2
PI T• _+
GEN 1 32+52.74
_ AP PROX.FOATE LOCATION OF GEN 2 4343? 41
70' SANITArRY SEWER EASEMENT - " v ) $3'67'sG" L r. i
{Pp 71, PG 74) NAU83(2011) , --7=
N= 725,901-232'
E: 1,314,823.313'
PAR C E L 37121 D3 5 5299
6JARrIN MARIETTA
MAI, RALS REAL ESTATE
IN
31D6E PG S52 NTS, INC-��� "31
45 v Clay r 31$ .�,tk
FB 7i, PG 74 pOQOSEb SU3g`0.5'
L17
-ex TIE N 77' PROPOSED PI T 8
r J GEN 2 40.45.26
�1 PROPOSED PIT •7 PROPOSED DUKE POWER
GEN 2 36+02.79 RIGHT OF WAY ON �O0p
SEECEL37 INSERT 21 SHEET1 !y
J �r w r' PARCEL 371215540891
L7U r' 149 $Q, FT.: 0.003 ACRES
T-8
(TO BE REMOVEI7I
NC GRID (NA083) j ;f+f ti no
GEN 1 27+4P.35
Z Lo RT.0.17'
F r r 3434
rZ PROPOSED
DUKE POWER RIGHT OF WAY 1"'. FLOOD
f ON PARCEL 371215640891 ?CINC AF
r 174.315 5Q. FT. Lu w-
IF 4.002 ACRES o� 0 l95 ELOO7
�r �i aoNe x
;n
PROPOSED PI T-6.5 PARCG'_ 321215544891 �]
34,
F\ f GEN 2 31+16.56 �� z� T-7
CD
\J IN MARIETTA
" ti 34 ARTATERIAL5, INC (TO115 REMOVED)
D8 2955, PGRk6 GEN 1 23+4833
^� Iw RT 0 30'
PUKE POWER RIGHT OF WA
w p r n TO BE RELEASED
4
to Iw (D3 13, PG 24)
Ib 1,337 SO. FT r
II aft IO 2-55] ACRES N I ry
,r :86R2
1SED
p
0 DUKE PO WAY 3I
ON PARCEL 442334 �w' q
6�10,336 .FT �z f
�r 237 ACRES
� T-6
1 PR PI (TO BE REMOVED)
° 1 GEN 2 GEN 1 19+51,93
5 7$ 34`11 PROPOSED PI T-5.5 1T, p.IE3'
4-5 2Qs. 72' GEN 2 19+58.00
S 7Y Q9' 1, E 10
11 L(5 r rn S �Z3�4 53 y `6 2 5
_CG `4$Z. rZ 45q T-5
_ f 2 y S ?9g.3 E GEN 1 15+33-55
,nJ1 4 �a - 4$ 4I3 46 s9' N7 724? 97 631'
SEE INSERT ON SHEET 3 GSq S 333 Z4� d E: 1,314,644 RO'.
QUARRY CORNER, LLC 5� 3 Z 454 , �tiairriarr.r
ME 38. PG 114 NU` +` C
998 SQ- FT-; M23 AC..'4G5 NSF _ � :�¢Z� Ess 1 p •�+
° SEAL r .
L-54 o
y+ 'y E
jl l � Q5r1a FC3 SDURCF GI TITLE REFf R TO FI.P,K 3159, PG- 1479 & LEV : 9'.S. VG 7 35 SIFE ! 2 UIi
DUKE ENERGY CAROUNAS, LLC
SWEETWATER RETAIL TAP 100KV RELOCATION D' r
.,- u
KE
MARTIN TT.i MATERIALS REAL ENE RAY®
ESTATE
' -[ INVESTMENTS INC.
dr MARTIN MMUEs TTA MATERLALS INC.
TOWN OF HICKORY CATAWBA COUNTY, N-C.
300-- 1U] 0 10p' no, 250' CRFW: LF/LP. t505 TRVOPJ 57R�ET
34T- 03.24 2n,) DRAWN $Y: C:CG C.-{ARLB'T I N.L
5CA,E. 1-200' SCA,_F IN FF.0 R_O_P; 1 a0,L00- IEl cPHQNS N7 i704) 392 23ri1
LAN 7 u NI ; . 28C+7201 h1�A.p: tls2"Ii 83FQiP416

3819 0638
Exhibit A-3
PARCEL TABLE
LOT
OWNER
PARCEL NQ,
)rEo
REFERENCE
PLAT
REFERENCE
1
-AR HEEL PROPERTIES OF II;CKCRY, I.LC
371214343533
N 2416. PG 1608
RB 55. PG 175
2
CNS REAL 3STATE!, LLC
371214346600
D8 3220. PC 191.
PB 55, PG 175
3
MAO PROPERTIES, LLC
3712:4346735
DB 6297, FG 121
PO 56, PG 175
4
COUNTY -WIDE INSURANCE AGENCY, INC.
371?14345931
DO3A5S, PG 613
PH 55, ]G IT,
5
TERRY E7WAR ?S, P.T A�.
371710454989
DB 2911. PG 1335
PR 11, PG 5
p
❑SCAR ROM ERO, ET AI
31]710464130
DB E 576, PG 733
PB I1, PG 5
7
OV�IN ALBER T SCHRONCE
374'10463290
D9 1747. PG 939
M 11. PG 5
$
JOI.ENF & AIAN CROOKS., JR
371210463350
133589. PG 356
PB 11. PG 5
9
IOUNE & ALAN CROOKS, JR.
3)12104£2486
DES 344G. PG V44
PB 11 PG 5
10
MARTIN %148 LTA MATERIALS REAI ESlAIE INVES MI N75, INC
3712144a2334
DR 3159. PG 1479
PB71, PG 183
INSERT 1"=30'
1 PROP OSFD DUKE POW _R
I RIGHT OF WAY ON
/ SEE INSERT ON 5HEE r 3
PARCEL37121564U891
149 5Ct RT.. Q.003 ACPES
C '
Pr..9
ic-
n
� ��aH�a� *,cAaolnnax3l
PIT9
OEN 1 32+52.74
GEN 2 43432-41
G E N 2 83'67'30"
NA083j 20111 1
N. 725,907.2
E: i,314,823.
LINE TABLE
L
BEARING
DISTANCE
L?
7ti-40'52" E
50.27
:.2
1_3
IN 76'18'59" `N
S 14'S 7'08" E
2 28'
L4
LS
N 75"20'42" W
N 19 3T20' E
?34-
991.
L6
5 77'08'25" 1E
176,80'
LI
516"S9'44"W
76.OT
N 16'57'517" E.
-3 11.23
N 14'33'12
195,85'
E
15'.92
N 14`2'28
661.47
5`1315"
248.48'
N 77`35'A7'
142.97'
N 77'37'11" E
182.92'
N ?$'05 28" W
104,83'
L16
5 04'33`10" E
124,91
L17
N 84`5849"
147.76,
LIS
S 77`20'20" E
6.52'
719
N 18'10'41"r�789"'
1-20
N 3443849 E
L21
N 34'38'A9" E
L22
N 34'38'49" E
1Md_
_23
N 13'S5 47' E
102.0
724
N 13'5 '47" E
68.19'
US
N 11 55'47" '
94.90'
E35
571"45'41" F.
164,58'
n
INSERT 1"=100'
N
n!7111
�l
c aam I^IAne sI 4r
a
PARCE1371215540991
+j MARTIN MA:RIETTA � 4
MATERIALS, INC o
DB 79S5, PG 736
[QUARRY CORNER, I.1.0
❑B 2086, PG 1051
M9 38. PG 114 t °
^ L 998 7G. F',, 0.023 AC. =
M
!6
T tiF AR' A SHOWN HEREON 1998 SQUARE FEETI IS A
1108110'N 01 .A PARCEL CONVEYED r0 QJARAY
CORNER. LLC HEED BOOK 2D35, PAGE 10511. THIS
AREA WAS NOT INCLUDED IN THE' FALL CAVING
C014VEYANWsS 10 TAR HEEL PROPERTE5 01F
HICKORY'. LLC (DEED BOOK 21'16, PAGE 16031 &
='ANDA PARTNIRS, LLC IbEED 1360K 2565, PACE
325).
A R .+.+
LEGEND
4''.4��►,+ftiG
0� �..+•••+..• ( 4
E Sum EYED PR Ii11E
1Q'¢O�ESSIfl•4�i�++ ----
ADJOINING PARCEL UW
ppSS�•
SEAL
ROAD RIGHT OF V1AY
2
;r 5415
4
TIE LINL
----
l
.EASEM"NT
�'►r • '. . •• r
SURVE4 LINE ITRANRAISSIONJ
—LW—
SA,l'1TAM STEW tR(APPROX I NIATEI
0
FOO'NDPROP1RTYCORN ER
e
CALCGL4TE17POINr
■
SE r 1/i" PIPE
_,ITE: 000884 FOR SOURCE ©P TIFLE REFER TO D.H.K. 3159, as;. 1Q79 & ❑.9K. 2955, PG 73E- SH'Fi 3O'r 3
DUKE ENERGY CAROL.INAS, LLC
SWEETWATER RETAIL TAP 100KV RELOCAi ON DUKE
''GIJT OF WAY EXIII-'3IT V
MARTIN EA TSVENR IffC.LS
MARTIN.ESTATYA.WTTAyYAT.KRW5INC. ENERGY.
T OWN' OF H:CKGRY CATAVI,'BA COUN TY, N.C.
a{'110{. [REvt ll_R i05. T q
TAT:: 03,24.202.1 DRAWN BY CCG Cf4R:"11-C.2620 ] rl]
5CAI.kHDp;Z
111 rN•?I'aR1:363
A'dD,_; I_: 287?0 I-1A= r7'3788�;.•k[]%75

Natural &Cultural Resources
Report
Sweetwater Ret Tap Hickory B&W-100kV
Relocation
Prepared by:
Terracon Consultants, Inc.
Raleigh, North Carolina
Catawba County, North Carolina
May 2023
Project No. 70237263
Prepared for:
Duke Energy Carolinas
Charlotte, North Carolina
lerracan
Explore with us
Nationwide ■ Facilities
■ Environmental
■ Gootechnical
Terracon.com ■ Materials

Sweetwater Ret Tap Relocation I Catawba County, NC � �erra�on
May 2023 1 Terracon Project No. 70237263
Table of Contents
1.0 PROJECT DESCRIPTION & UNDERSTANDING.............................................1
2.0 BACKGROUND RESEARCH..........................................................................1
3.0 PHYSICAL RESOURCES..............................................................................1
3.1 Topography.......................................................................................1
3.2 Soils.................................................................................................1
3.3
Water Resources................................................................................2
3.4
Floodplains........................................................................................2
4.0 JURISDICTIONAL ISSUES..........................................................................2
4.1
Clean Water Act Waters of the U.S.......................................................2
4.1.1 Potential Wetlands Data..............................................................
3
4.1.2 Potential Waters Data...............................................................4
4.2
Clean Water Act Permits.....................................................................4
4.3
Coastal Area Management Act.............................................................5
4.4
Construction Moratoria........................................................................5
4.5
N.C. River Basin Buffer Rules...............................................................5
4.5.1 Local and Municipal Buffers.......................................................6
4.6
Section 10 of the Rivers and Harbors Act..............................................6
4.7
Endangered Species Act Protected Species............................................6
4.8
Bald and Golden Eagle Protection Act (BGEPA).......................................9
4.9
Federal Species of Concern/At-Risk Species...........................................9
4.10
State Listed Species...........................................................................9
5.0 CULTURAL/ARCHAEOLOGICAL
RESOURCES.............................................10
6.0 SUMMARY................................................................................................10
Appendices
Appendix A
• Exhibits
Appendix B
• Representative Photos
2

Sweetwater Ret Tap Relocation I Catawba County, NC � �erra�on
May 2023 1 Terracon Project No. 70237263
1.0 PROJECT DESCRIPTION & UNDERSTANDING
Terracon has completed the natural and cultural resources due diligence investigation for
Duke Energy Carolinas (Duke) for potential work on the Sweetwater Ret Tap Line in
Catawba County, NC. The study area consists of 2,900 feet of existing line and
approximately 2,800 feet of proposed, new right-of-way. The limits of the study area were
provided by Duke as GIS data.
The study area is depicted on a current U.S. Geological Survey (USGS) topographic map
(Exhibit 1), the Natural Resource Conservation Service (NRCS) Soil Survey of Catawba
County (Exhibit 2), recent aerial photography depicting the delineation results titled
Potential Wetlands/Waters (Exhibit 3), and a Flood Zone map (Exhibit 4).
Terracon was tasked by Duke to provide the following services for the Sweetwater
Ret Tap Line:
• Wetland and waters delineation,
• GPS data collection for any delineated wetlands and tributaries,
• Preliminary protected species habitat assessments for federally Endangered and
Threatened species,
• Preliminary cultural resources assessment, and
• Report, graphics, data, and KMZ file preparation
2.0 BACKGROUND RESEARCH
Prior to the initiation of field efforts, available sources were reviewed, including the
applicable USGS 7.5-minute topographic quadrangles of Hickory, NC (NGS/ESRI 2011),
the NRCS Soil Survey for Catawba County, NC (USDA 1995), and Federal Emergency
Management Agency (FEMA) floodplain mapping (FEMA 2019). Additionally, North Carolina
Natural Heritage Program (NCNHP) data concerning any known occurrences of state and
federally Threatened or Endangered species were reviewed in May 2023 on the Natural
Heritage Data Explorer (NCNHP 2022). Field work was conducted by Terracon staff on May
1, 2023.
3.0 PHYSICAL RESOURCES
The study area is located within the piedmont physiographic province of North Carolina.
Specifically, the study area is in the Biotite gneiss and schist and the Megacrystic biotite
gneiss Formations (NCDENR 2018).
3.1 Topography
Topography in the study area consists of slight slopes and drainages. Elevations appear
to range from a high of approximately 1,160 feet above mean sea level (MSL) down to
approximately 1,015 feet above MSL, based on a review of Exhibit 1 and other online data
sources.
3.2 Soils
The soil mapping units identified by NRCS as occurring in the study area include Clifford
sandy loam, 2-6% slopes; Clifford sandy loam, 6-10% slopes; Codorus loam, 0-2% slopes,
frequently flooded; Fairview clay loam, 10-25% slopes, severely eroded; Fairview gravelly
fine sandy loam, 6-10% slopes; Fairview soils, 10-25% slopes, moderately eroded; and
1

Sweetwater Ret Tap Relocation I Catawba County, NC � �erra�or�
May 2023 1 Terracon Project No. 70237263
Udorthents, loamy and clayey (Exhibit 2). The soil mapping unit Codorus loam, potentially
occurring within the study area is considered a hydric (wetland) soil by NRCS or is known
to have hydric inclusions.
3.3 Water Resources
Water resources in the study area are located within the Catawba River Basin [USGS
hydrologic unit 03050101 (NCDWR 2019)]. A Best Usage Classification (BUC) is assigned
to waters of North Carolina based on the existing or contemplated best usage of various
bodies of water. Table 1 contains the nearest named water resource associated with
features located within the study area, its Stream Index Number (SIN), and BUC. This
named stream represents the potential receiving waters of any wetlands and tributaries
that are located inside the study area. Unnamed tributaries carry the same BUC as their
receiving waters, unless otherwise indicated by North Carolina Division of Water Resources
(NCDWR).
Table 1. Named water resources and receiving waters (NCDWR 2019)
Stream Name
SIN =
BUC
Basin
Clark Creek (Shooks Lake)
11-129-5-(0.3)
1 C
Catawba
C are waters protected for uses such as aquatic life propagation, survival, and maintenance
of biological integrity (including fishing and fish), wildlife, secondary contact recreation,
and agriculture. Secondary contact recreation means wading, boating, other uses not
involving human body contact with water, and activities involving human body contact with
water where such activities take place on an infrequent, unorganized, or incidental basis.
3.4 Floodplains
Portions of the study area associated with Clark Creek are designated as the 100-year
floodplain (AE zone), which is defined as an area with a 1 percent annual chance of flooding
and as a regulatory floodway (FEMA 2019). Under NWP 57, activities within the 100-year
floodplain must comply with applicable FEMA-approved state or local floodplain
management requirements. These requirements should be evaluated by Duke engineers
or the applicable engineering consultant.
4.0 JURISDICTIONAL ISSUES
4.1 Clean Water Act Waters of the U.S.
Section 404 of the Clean Water Act (CWA) requires regulation of discharges into waters of
the U.S. (WOTUS). Although the principal administrative agency of the CWA is the U.S.
Environmental Protection Agency (EPA), the U.S. Army Corps of Engineers (USACE) has
major responsibility for implementation, permitting, and enforcement of provisions of the
CWA. Water bodies such as rivers, lakes, and streams are subject to jurisdictional
consideration under the Section 404 program. However, by regulation, certain wetlands
are also considered WOTUS.
Currently WOTUS are assessed by the CWA's pre-2015 definition of WOTUS. This definition
of WOTUS includes the implementation of rulemaking as decided in the Supreme Court's
decision of the consolidated cases Rapanos v. United States and Carabeii v. United States.
2

Sweetwater Ret Tap Relocation I Catawba County, NC � �erra�on
May 2023 1 Terracon Project No. 70237263
Specifically, the following waters will be under federal jurisdiction pursuant to the CWA:
• Traditional navigable waters (TNWs)
• Wetlands adjacent to TNWs
• Non -navigable tributaries of traditional navigable waters that are relatively
permanent where the tributaries typically flow year-round or have continuous
flow at least seasonally (3 months)
• Wetlands that directly abut such tributaries
• Relatively permanent, standing or continuously flowing bodies of water "forming
geographic features" that are described in ordinary parlance as "streams,
oceans, rivers, and lakes". These are Relatively Permanent Waters (RPWs).
The following waters will be considered jurisdictional if a significant nexus (contributes to
the physical, chemical, or biological integrity of downstream TNWs) exists between these
features and traditional navigable waters:
• Non -navigable tributaries that are not relatively permanent
• Wetlands adjacent to non -navigable tributaries that are not relatively
permanent
• Wetlands adjacent to but that do not directly abut a relatively permanent non -
navigable tributary
The following waters will be considered non jurisdictional under the CWA:
• Swales or Erosional features (gullies, small washes characterized by low volume,
infrequent or short duration flows)
• Ditches (including roadside ditches) excavated wholly in and draining only
uplands and that do not carry a relatively permanent flow of water.
However, wetlands and other waterbodies that do not fall under federal regulation per the
CWA may be subject to jurisdiction by the N.0 Division of Water Resources (NCDWR) under
the state's Isolated and Other Non-404 Jurisdictional Wetlands and Waters program.
Our delineation methodology generally follows the guidance outlined in the Regional
Supplement to the USACE Wetland Delineation Manual for the Eastern Mountains and
Piedmont Region, which states that areas must exhibit three distinct characteristics to be
considered jurisdictional wetlands: 1) prevalence of hydrophytic (water tolerant) plants;
2) presence of hydric soils; and 3) sufficient wetland hydrology indicators within 12 inches
of the ground surface.
The study area was also reviewed for the presence of tributaries (stream channels) using
criteria provided by the USACE and the NCDWR. When present, intermittent, and perennial
tributaries, and certain other surface waters, are also considered jurisdictional by the
USACE and/or NCDWR.
4.1.1 Potential Wetlands Data
One (1) potential wetland was delineated within the study area. As such, this
feature is reported for Dukes preliminary due diligence and planning purposes. This
potential wetland feature was flagged with sequentially numbered orange and red -
and -white striped flagging. Exhibit 3 depicts the approximate extent and
approximate location of this feature. These graphics are not intended to be a
C

Sweetwater Ret Tap Relocation I Catawba County, NC
May 2023 1 Terracon Project No. 70237263
it Terracon
replacement for a traditional survey and are not intended to be used as such. Table
2 contains a summary of the specific wetland data collected for the wetland that
occurred inside of the project study area. This wetland is classified as a Headwater
Forest wetland. Headwater Forest wetlands are intermittently inundated to
seasonally saturated, dominated by woody vegetation, and located in areas that
have less than a second -order stream or are located within a topographic
crenulation without a stream.
Table 2. Potential wetlands data for the Sweetwater Ret Tap Line
Approximate
Likely
Wetland
NCWAM
Size in
Hydrologic Regime
Jurisdictional
ID
Classification
project
Authority
Study Area
Seasonally to semi-
W1
Headwater Forest
permanently inundated
0.011
USACE/DWR
and/or only intermittently
inundated.
TOTAL
f0.01 ac
' Final decision regarding jurisdictional status lies with USACE.
4.1.2 Potential Waters Data
Three (3) potential tributaries, Clark Creek and two unnamed tributaries to Clark
Creek, were identified by Terracon staff within the project study area. These
features are reported for Duke's preliminary due diligence and planning purposes
and were delineated with sequentially numbered solid blue and orange flagging. A
NCDWR stream identification form was completed for the potential tributaries in the
study area to determine if the stream exhibits perennial or intermittent flow. Exhibit
3 depicts the approximate extent and approximate location of these features. This
exhibit is not intended to be a replacement for a traditional survey and are not
intended to be used as such. Table 3 contains the potential waters data collected
as part of this project.
Table 3. Potential waters data for the Sweetwater Ret Tap Line
Approximate
NCDWQ
Likely
Water
Flow
Length (ft) in
Approximate
Stream
Jurisdictional
s ID
Regimes
Width (ft)
ID Form
Study Area
Authority
Score
T1
(Clark
Perennial
228
15
>30
USACE/DWR
Creek)
T2
Intermittent
154
6
24
USACE/DWR
T3
Intermittent
42
6
20
USACE/DWR
TOTAL
424 LF
'Based on NCDWR score; USACE holds final decision
4

Sweetwater Ret Tap Relocation I Catawba County, NC � �erra�on
May 2023 1 Terracon Project No. 70237263
4.2 Clean Water Act Permits
Dredge and fill activities in WOTUS must be authorized by USACE as a regulated discharge
pursuant to Section 404 of the CWA and by NCDWR pursuant to Section 401 of the CWA.
Activities authorized by the USACE are subject to further water quality requirements per
Section 401 of the CWA. In North Carolina, the NCDWR administers the Section 401 Water
Quality Certification process, which also must include plans on how the applicant proposes
to manage stormwater.
USACE authorizes many utility projects under the Nationwide Permit (NWP) program. NWP
57 will allow activities required for the construction, maintenance, repair, and removal of
utility lines and associated facilities in WOTUS, provided the activity does not result in the
loss of greater than 0.5 acre of WOTUS for each single and complete project.
Compensatory mitigation can be required by USACE if the proposed project is determined
to have an adverse effect on WOTUS, including wetlands, because of a regulated discharge.
Mitigation can be required for wetland losses >_ 0.10 acre and/or the loss of >_ 0.02 acre of
stream bed. Under NWP 57 activities within the 100-year floodplain must comply with
applicable FEMA-approved state or local floodplain management requirements.
Coordination is recommended with USACE and NCDWR to determine the applicable
jurisdictional authority and the permitting requirements for this project, if any. Section
404 permitting may not be necessary if all wetland and stream impacts are avoided;
however, concurrence from USACE and NCDWR should be obtained prior to beginning any
activities.
4.3 Coastal Area Management Act
North Carolina Division of Coastal Management (NCDCM) regulates certain wetlands and
water bodies in the twenty coastal counties of North Carolina pursuant to the Coastal Area
Management Act. Catawba County is not a coastal county and is not subject to NCDCM
regulations.
4.4 Construction Moratoria
No construction moratoria should apply to this project based on the lack of sensitive
environmental resources that could trigger a moratorium. There are no Primary Nursery
Areas (PNA) listed for Catawba County (NCDMF 2011). There are no Anadromous Fish
Spawning Areas (AFSA) listed for Catawba County (NCDMF 2007). There are no
waters/tributaries within the study area or receiving waters that are classified as Trout
Waters (Tr) (NCDWR 2018).
4.5 N.C. River Basin Buffer Rules
The study area is within the Catawba River Basin. Per the Catawba River Basin riparian
buffer rules, a 50-foot buffer applies to all shorelines along Catawba River mainstem below
Lake James to the North Carolina/South Carolina border and all shorelines of the Catawba
mainstem lakes. This buffer does not apply to any features identified within the study area.
5

Sweetwater Ret Tap Relocation I Catawba County, NC
May 2023 1 Terracon Project No. 70237263
it Terracon
4.5.1 Local and Municipal Buffers
The project study site is within Catawba County. There appear to be no local or
municipal riparian buffer requirements in Catawba County. Terracon makes no
definitive statement regarding buffers that are associated with landscaping,
viewsheds, zoning, or any purpose other than for the protection of aquatic
resources.
4.6 Section 10 of the Rivers and Harbors Act
Section 10 of the Rivers and Harbors Act requires authorization from the USACE for the
excavation of material, alteration, obstruction, or construction of any structure in or over
any "navigable water" of the United States (33 U.S.0 410 et seq.). "Navigable water" is
defined as waters that are subject to the ebb and flow of the tide shoreward to the mean
high-water mark and/or waters that are presently used, have been used in the past, or are
susceptible for use to transport interstate or foreign commerce (33 CFR part 329). There
are no Section 10 waters within the study area.
4.7 Endangered Species Act Protected Species
Species with the federal classifications of Endangered (E) or Threatened (T) are protected
under the Endangered Species Act (ESA) of 1973, as amended (16 U.S.C. 1531 et
seq.). Species officially Proposed (P) for such listing are not protected under the ESA, but
are recommended for inclusion in evaluations based on potential for status to be upgraded
to official listing as E or T. The U.S. Fish and Wildlife Service (USFWS) online Information
for Planning and Consultation (IPaQ system (IPAC 2023) indicates that five (5) species
are recommended for project consideration based on the location of the project study area.
Three of these species, tricolored bat (listed as Proposed Endangered), bog turtle (listed
as Threatened -Similar to Appearance), and monarch butterfly (listed as Candidate) do not
currently require further consideration. A NCNHP database query was generated in April
2023 to determine if any of these species have been documented inside of or within 1.0
mile of the study area. Terracon conducted habitat assessments inside the study area in
May 2023.
Table 4. Federal listed species for Sweetwater Ret Tap Line (Catawba County)
Potential
Federal
Habitat
Biological
Common Name
Scientific Name
Status
Present
conclusion
(T/E) 1
Y/N
May Affect -
Northern long-
Myotis
Yes (summer
Not Likely to
eared bat
septentrionalis
E
habitat)
Adversely
Affectz
Tricolored bat
Perimyotis
PE
Yes
Not Required
subflavus
X

Sweetwater Ret Tap Relocation I Catawba County, NC � �erra�on
May 2023 1 Terracon Project No. 70237263
May Affect -
Dwarf -flowered
Hexastylis
T
Yes
Not Likely to
heartleaf
naniflora
Adversely
Affectz
Bog turtle
Glyptemys
T(S/A)
No
Not Required
muhlenbergii
Monarch
butterfly
Danaus plexippus
C
No
Not Required
1 E - Endangered, PE - Proposed Endangered, T-Threatened, T(S/A)-Threatened (Similarity of
Appearance, C-Candidate
z May require USFWS concurrence if Section 404 permitting is required
Northern long-eared bat — During summer, the northern long-eared bat (NLEB) roosts
singly or in colonies underneath bark, in cavities, or in crevices in both live and dead trees
and/or snags (typically >3 inches diameter breast height). Males and non -reproductive
females may also roost in cooler places, like caves and mines. This bat seems opportunistic
in selecting roosts, using tree species based on suitability to provide cavities or crevices or
presence of peeling bark. It has also been found, rarely, roosting in structures like barns
and sheds when suitable tree roosts are not available. During the summer, NLEB emerge
at dusk to forage in upland and lowland woodlands and tree -lined corridors. It is reported
that the NLEB hibernation season is October 15 — April 15. The bats spend winter
hibernating in caves and mines, called hibernacula. They typically use large caves or mines
with large passages and entrances; constant temperatures; and high humidity with no air
currents. Specific areas where they hibernate have very high humidity, so much so that
droplets of water are often seen on their fur. Within hibernacula, surveyors find them in
small crevices or cracks, often with only the nose and ears visible (USFWS 2023).
Habitat Present: Yes
The project study area contains potential summer habitat for NLEB. The forested
areas provide the necessary habitat requirements this species needs during the
summer months. A review of April 2023 NCNHP records indicates no known
occurrences of NLEB within 1.0 mile of the study area. If tree clearing or Section
404 permitting is needed for this project, further coordination with USFWS may be
needed to maintain compliance with he ESA.
Biological Conclusion: May Affect, Not Likely to Adversely Affect
Tricolored bat — The tricolored bat is a small native bat that can be found across the
eastern and central United States. During the spring, summer, and fall - collectively
referred to as the non -hibernating seasons - tricolored bats primarily roost among live and
dead leaf clusters of live or recently dead deciduous hardwood trees. In addition, tricolored
bats have been observed roosting during summer among pine needles, eastern red cedar
(Juniperus virginiana), within artificial roosts like barns, beneath porch roofs, bridges,
concrete bunkers, and rarely within caves. During the winter, tricolored bats hibernate in
caves and mines; although, in the southern United States, where caves are sparse,
7

Sweetwater Ret Tap Relocation I Catawba County, NC � �erra�or�
May 2023 1 Terracon Project No. 70237263
tricolored bats often hibernate in road -associated culverts, as well as sometimes in tree
cavities and abandoned water wells (IPAC 2023).
Habitat Present: Yes
Potential habitat for the tricolored bat does occur within the study area. The forested
areas provide the necessary habitat requirements this species requires. NCNHP data
reviewed in April 2023 indicates no known occurrences of the tricolored bat within
1.0 mile of the study area.
Biological Conclusion: Not Currently Required
This species is listed as Proposed Endangered. Any species the Service has
determined is in danger of extinction throughout all or a significant portion of its
range and the Service has proposed a draft rule to list as endangered. Proposed
endangered species are not protected by the take prohibitions of section 9 of the
ESA until the rule to list is finalized. Under section 7(a)(4) of the ESA, Federal
agencies must confer with the Service if their action will jeopardize the continued
existence of a proposed species.
Dwarf -flowered heartleaf- Dwarf -flowered heartleaf is endemic to the western Piedmont
and foothills of North and South Carolina. This herbaceous evergreen is found in moist to
rather dry forests along bluffs; boggy areas next to streams and creek heads; and adjacent
hillslopes, slopes, and ravines. Requiring acidic, sandy loam soils, the species is found in
soil series such as Pacolet, Madison, and Musella, among others. Occurrences are generally
found on a north facing slope. Undisturbed natural communities such as Piedmont/Coastal
Plain Heath Bluff, Dry-Mesic Oak Hickory Forest, and Mesic Mixed Hardwood Forest hold
the most viable occurrences. However, less viable remnant occurrences are found in
disturbed habitats, including logged, grazed, mown, and residential/commercial roadside
rights -of -way; and on upland slopes surrounding manmade ponds or lakes (IPAC 2023).
Habitat Present: Yes
Potential habitat for dwarf -flowered heartleaf, although marginal, does occur in the
study area. NCNHP data reviewed in April 2023 indicates one known occurrence of
dwarf -flowered heartleaf within 1.0 mile of the study area and one occurrence within
the study area. Terracon staff performed pedestrian surveys for this species within
the maintained ROW that comprises the study area and found no evidence of the
dwarf -flowered heartleaf.
Although our survey did not identify the species inside the ROW, due to the
proximity of the known locations of this species, Terracon cannot provide a No Effect
determination. It is recommended that Duke consult with USFWS prior to land
disturbance if Section 404 permitting is necessary for the project.
Biological Conclusion: May Affect, Not Likely to Adversely Affect
Bog turtle— The bog turtle is one of the smallest turtles in North America with a max
length at about 4 inches. They typically inhabit herbaceous sedge meadows bordered by
wooded areas. The meadows must contain pockets of dry land and pockets that are
n.

Sweetwater Ret Tap Relocation I Catawba County, NC � �erra�on
May 2023 1 Terracon Project No. 70237263
frequently flooded. Bog Turtles also inhabit open shrub wetlands that contain muddy
bottoms with dry pockets. They prefer areas that are dominated by low grasses and
sedges. Bog Turtles feed on small worms and snails, and berries. They spend much of their
time underwater, in shrubs, or buried in mud (USFWS 2023).
Habitat Present: No
Species listed as threatened due to similarity of appearance do not require Section
7 consultation with the USFWS. Suitable habitat for the bog turtle was not observed
within the project study area. NCNHP data reviewed in April 2023 indicates no
occurrences of the bog turtle within 1.0 mile of the study area.
Biological Conclusion: Not Required
4.8 Bald and Golden Eagle Protection Act (BGEPA)
Bald eagles typically feed on fish but may also consume birds and small mammals. In the
Carolinas, nesting season extends from December through May (Potter et al. 1980). Bald
eagles typically nest in tall, living trees in a conspicuous location near water and forage
over large bodies of water with adjacent trees available for perching (Hamel 1992).
The bald eagle was officially delisted and removed from the federal Endangered Species
List on August 9, 2007, but they are still protected under the BGEPA (Guidelines) and the
Migratory Bird Treaty Act (META). The Guidelines prohibits disturbance to a bald eagle.
The Guidelines defines disturb as "to agitate or bother a bald or golden eagle to a degree
that causes, or is likely to cause, based on the best scientific information available: 1)
injury to an eagle; 2) a decrease in its productivity, by substantially interfering with normal
breeding, feeding, or sheltering behavior; or 3) nest abandonment, by substantially
interfering with normal breeding, feeding, or sheltering behavior." The definition also
covers impacts that result from human -caused alterations initiated around a previously
used nest site during a time when eagles are not present, if, upon the eagle's return, such
alterations agitate or bother an eagle to a degree that injures an eagle or interferes with
normal breeding, feeding, or sheltering behavior.
Under the current Guidelines, USFWS recommends the following measures for roads, trails,
canals, power lines, and other linear utilities. If the eagle nest can be seen from the project
site and there is no similar activity within 660 feet, then USFWS recommends that the
project: 1) maintain a buffer of at least 660 feet between your activities and the nest; 2)
maintain any established landscape buffers; and 3) if possible, create additional landscape
buffers to screen the new activity from the nest. If these recommendations cannot be
adopted for the project, then coordination is recommended with the local USFWS office.
No habitat was identified within the project study area. A review of NCNHP records in April
2023 indicates no known occurrences of the bald eagle within 1.0 mile of the study area.
4.9 Federal Species of Concern/At-Risk Species
USFWS also maintains a list of Federal Species of Concern (FSC) and At -Risk Species (ARS).
Neither FSC or ARS are afforded federal protection under the Endangered Species Act and
9

Sweetwater Ret Tap Relocation I Catawba County, NC � �erra�on
May 2023 1 Terracon Project No. 70237263
are not subject to any of its provisions, including Section 7, until they are formally listed
as P, T, or E under the ESA. However, the status of these species is subject to change,
and a review of NCNHP data has been performed to determine if they have been
documented in or near the study area. The NCNHP review concludes no FSC/ARS species
have been documented within 1.0 mile of the study area based on a review of the April
2023 NCNHP data.
4.10 State Listed Species
Some species that are listed as FSC or ARS by USFWS receive limited state protection if
state -listed by the N.C. Wildlife Resources Commission or N.C. Plant Conservation Service
as Endangered (E), Threatened (T), or Special Concern (SC). These species receive limited
protection under the North Carolina Endangered Species Act (G.S. 113-331 et seq.) and
the North Carolina Plant Protection Act of 1979 (G.S. 106-202.12 et seq.). The April 2023
NCNHP review indicates two state -listed species have been documented within 1.0 mile of
the study area. Dwarf threetooth (Triodopsis fulciden) was last documented in 1952.. No
further coordination regarding these species is necessary pursuant to current regulations.
5.0 CULTURAL/ARCHAEOLOGICAL RESOURCES
Research conducted using the North Carolina State Historic Preservation Office (SHPO)
HPOWEB GIS service database on May 5, 2023, revealed that while no historical resources
appear to be located directly within the project study area, two are mapped within a 0.5-
mile radius (Table 5). Both resources have been destroyed and neither were evaluated for
the National Register of Historic Places (NRHP).
Table 5: Historic -Age Resources within 0.5-Mile Radius of the Project Study Area
Resource ID
Description
NRHP Status
CT0462
Duke Power Relay Station
Unassessed (Gone)
CT0917
Cline Farm
Unassessed (Gone)
Research conducted by Terracon at the North Carolina Office of State Archaeology (OSA)
on May 12, 2023, revealed that no archaeological sites have been recorded within a 0.25-
mile radius of the project study area.
Review of aerial imagery suggests that much of the proposed new location has been
previously disturbed by former residential development and subsequent demolition. Given
this previous disturbance and that a portion of the proposed project is located within
existing right-of-way, is unlikely that the project would adversely affect known cultural
resources. However, if federal permitting triggers Section 106 compliance, it is
recommended that SHPO be consulted to determine whether cultural resources surveys
may be required.
6.0 SUMMARY
One (1) potential wetland and three (3) potential tributaries were identified within the
project study area. Wetland and tributary impacts should be avoided and minimized as
10

Sweetwater Ret Tap Relocation I Catawba County, NC � �erra�on
May 2023 1 Terracon Project No. 70237263
much as practicable. Unavoidable impacts resulting in a regulated discharge of dredge or
fill material into wetlands and/or waters must be coordinated with the USACE and NCDWR
and Section 404/401 permitting and compensatory mitigation could be required. A
preliminary jurisdictional determination (PJD) is recommended if Section 404 permitting is
anticipated.
Potential habitat exists for three (3) of the federal -listed species identified for consideration
in this portion of Catawba County: Northern long-eared bat, tricolored bat, and dwarf -
flowered heartleaf. Surveys for dwarf flowered heartleaf were conducted within the study
area at the time of the site visit by Terracon. No evidence of dwarf -flowered heartleaf was
identified within the study area. NCNHP does document this species as occurring inside the
ROW; however, it is likely that this occurrence has previously been addressed by the quarry
due to their expansion plans. Potential summer habitat for the northern long-eared bat and
potential habitat for the tricolored bat occurs within the forested parts of the study area.
Further consultation with USFWS regarding the impacts to these species is recommended
if Section 404 permitting is required for the project.
No recorded cultural or historic resources were identified within 0.25 mile of the study
area. No archaeological sites have been recorded within 0.25 mile of the study area. If
Section 404/401 permitting will be required for this project, further coordination with SHPO
may be necessary.
11

Sweetwater Ret Tap Relocation I Catawba County, NC � �erra�on
May 2023 1 Terracon Project No. 70237263
References
Federal Emergency Management Agency. 2020. FEMA's National Flood Hazard Layer.
https://fema.maps.arcciis.com/home/webmap/viewer.html (Accessed May 2023).
Hamel, P.B. 1992. Land Manager's Guide to the Birds of the South. The Nature
Conservancy, Southeastern Region, Chapel Hill, NC. 437 pp.
National Geographic Society/ESRI. 2011. I -cubed seamless USGS quadrangle (Hickory,
NC).
N. C. Department of Environmental and Natural Resources. 2022. Geologic Map of North
Carolina 1985.
https://ncdenr.maps.arcgis.com/apes/MapSeries/index.html?appid=a8281cbd24b
84239b29cd2a7984a10.
N.C. Division of Marine Fisheries. 2007. Anadromous Fish Spawning Areas.
http://portal.ncdenr.ora/web/mf/ (Accessed May 2023).
N.C. Division of Marine Fisheries. 2011. Primary Nursery Areas.
http://portal.ncdenr.ora/web/mf/ (Accessed May 2023).
N.C. Division of Water Resources. 2020. NC Water Quality Classifications by NC River
Basin. http://portal.ncdenr.org/web/wq/ps/csu/classifications (Accessed
May 2023).
N.C. Division of Water Resources. 2020. Find Your Hydrologic Unit.
https://ncdenr.maps.arcgis.com/apes/PublicInformation/index.html (Accessed
May 2023).
N.C. Natural Heritage Program. 2023. Natural Heritage Data Explorer [web application].
NCDNCR, Raleigh, NC. Available at www.ncnhp.org. (Accessed April 2023).
Potter, E.F., J.F. Parnell, and R.P. Teulings. 1980. Birds of the Carolinas. The University
of North Carolina Press, Chapel Hill, NC. 408 pp.
U.S. Department of Agriculture. 2006. Digital Soil Survey of Catawba County, NC.
U.S. Army Corps of Engineers. 2012. Regional Supplement to the U.S. Army Corps of
Engineers Wetland Delineation Manual: Eastern Mountains and Piedmont Region
(Version 2.0). U.S. Army Engineer Research and Development Center, Vicksburg,
MS. 179 pp.
U.S. Fish and Wildlife Service. 2023. Information for Planning and Consultation.
https://ecos.fws.ciov/ipac/ (Accessed May 2023).
12

Sweetwater Ret Tap Relocation I Catawba County, NC
May 2023 1 Terracon Project No. 70237263
Appendix A
Exhibits
r rerracon
13

er-Rhyne
College
Highlaoo
A vo
F pve Or SE ..
Sweetwater of
Tale 31vtl SE
m
h
V 3
m c
sF
ca^ Ex -Prisoners o �
r f
Way.
Fairbrook
9.
40%r
ti
C � •
Legend pia
Project Study Area
W0 500 1,000 Source: USGS Latest Topographic Map 2022; Project Study Area
Provided by Duke Energy
.r DUKE Feet
ENERGYNM..il. rhyd,, moval or aftendbn of Disclaimer The information de cted on thisft for informational
le or Iryd logy after moral efts and was not d foq and is not suitabkufor le I or an p°^'Dees only
evaluation an aRec[lurisdid'anal sbtus prepare ga gineering purposes.
Q Catawba River Basin and may require reevaluation ofwetiand This information presented is not for regulatory reviewand is
boundarie . intended for u. only by a Professional Land Surveyor prior to regulatory review.
Project: 70237263
Wr can USGS Topographic Date:
^a) Sweetwater Ret Tap Hickory B&W - 100kV Relocation May 2023
Drwn/Chkd: NR/JH
gam ereMwoed 3-2211 te,W .. (91ll N73-9M Catawba County, NO
Ph.. : (g,9la,a-z:„ Fax: (919)e93-9555 Figure: 1

er-Rhyne
College
High lend
q po
�F
F pve Or SE
Sweetwater u
Tate 31vd SE
m
0
y @ xrI
h
V 3
N C
m tth
sF
icon Ex_prisoners of \ \
N'ar
Fairbrook
Cg132
_ - f
- CgC2
P-fB
t • �'�.
Legend lk' f-r
Project Study Area �""""' - ? • .
ud.•
NRCS Soil Mapping Units lr
Soil Mapping Units �, =
CfB: Clifford sandy loam, 2-6% slopes " rF CfB
CfC: Clifford sandy loam, 6-10% slopes ' O
CsA: Codorus loam, 0-2% slopes, frequently flooded
FaE3: Fairview clay loam, 10-25% slopes, severely eroded FdE�2
FcC: Fairview gravelly fine sandy loam, 6-10% slopes
FdE2: Fairview soils, 10-25% slopes, moderately eroded
Ud: Udorthents, loamy and clayey
0 150 300 Source: Latest High -Resolution NC Statewide Orthoimagery, NC
OnelVap Server, Project Study Area provided by Duke Energy NRCS
DUKE Web Soil Survey 2023
It DUKE
N Feet
NsteoVegeWRonoremoval or ft.ratien of Disclaimer: The information depicted on this figure is for informational purposes only
Is or hyd IogyafierinNalsbe and was not prepared for, and is notsuitable for legal orengineedng purposes.
evaluation an aRec[urisdid'anal sbtus This information t d is not for re Ito d is
Q Catawba River Basin and may require ree lu.fibhofwetland intended for use on b Professional Land Surve a ry re ewanl t
bound.d.. only by yor pdoro regua ory review.
Project: 70237263
Wraean NRCS Soils Date:
^a) Sweetwater Ret Tap Hickory B&W - 100kV Relocation Ma 2023
Drwn/Chkd: NR/JH
gam P19)d 3-2211 te,W .. (919 Ne]9fD4 Catawba County, NC
Ph.. : (g,9la,a-z:„ Fax: (919)e93-9555 Figure: 2

e -Rhyne
.x
J�
College
Highland
t :
'
A vc
F Or SE
Pye Sweetwater 4
Tate 31vd SE
y
m
o
,M1�h
I
h
c
• ff
m
sF
T1a
o
�\
icon E'-Prisoners
Clark Creek
90 LF
w1
-e_
or \ T2
H,ar UT to Clark Creek
Hwy 154 LF
Headwater -
Fairbrook
m
Tlb
Clark Creek
- _ -
139 LF
_
.,
J a
r ;F
I°
Legend
0 Project Study Area
® Potential Wetlands
— Potential Tributaries
AL
tr
T3w.t.-
✓~'r� 3: UT to Clark Creek
42 LF
0 150 300 Source: Latest High -Resolution NC Statewide Orthoirragery, NC
OneMap Server, Project Study Area provided by Duke Energy
U'DUKE Feet
ENERGY N NoteoVegeWdonFeet for ale not Oiaslaimer: The information tle detl on this figure for infornational
Is or Iryd logy after mibal one and was not d fop and is not a itabkufor le l or on pumoeee s. y
evaluation an a Rest lurisdid'amal status prepare ga gineedng purposes.
rI Catawba River Basin and may require revaluation of wetland This information presented is not for regulatory review and is
boundarie . intended for use only by. Professional Land Surveyor prior to regulatory review.
Project: 70237263
r Potential Wetlands and Waters
F �CVJR n Date: Ma 2023
^a) Sweetwater Ret Tap Hickory B&W -100kV Relocation
Drwn/Chkd: NR/JH
Ph. Brentwood 3-2211 te,m .. (919 Nez-soa Catawba County, NO
Ph.. (e,9la,a-z:„ Fax: (919)a93-9555 Figure: 3

eit-Rhyne -
College
Highland
A I•o
tiF
F pie Or SE
Sweetwater 4
Tate 31vd SE
m
0
h
V 3
F n
ifp Que _
SF
\� O
icon Ex.prisona \
rs of H.ar
Fairbrook Zone AE
V
sw.afwarrr
J I
Zane AE
Zone AE
Legend
p Project Study Area
1% Annual Chance Flood Hazard
Regulatory Floodway ram'.
Special Floodway
0.2% Annual Chance Flood Hazard
0 500 1,000 Source: 11SGS Latest Topographic Map 2022; Project Study Area
provided by Duke Energy
L DUKE Feet
u ENERGY N- VegeWEonoremo al or atle bn of Oia Jaime The in ormation tle etl on thing or in onnational
Is or Ind logy aver inNal sbe and was not d fop and is not suitable for le I or en ' pu,p. s on y
evaluation anaRestlurisdid'anal status prepare ga gineedng purposes.
Q Catawba River Basin and may require re-evaluationof-tishd This information presented is not for regulatory review and is
boundarie . intended for use only by a Professional Land Surveyor prior to regulatory review.
Project: 70237263
Wraean FEMA Flood Plain Date:
^a) Sweetwater Ret Tap Hickory B&W - 100kV Relocation May 2023
Drwn/Chkd: NR/JH
Ph. &eminoed 3-2211 ite,o7 .. (919 Nez-soa Catawba County, NC
Ph.. (9,a)eP3-2211 Fax: (919)a93-9555 Figure: $(REV by HIDR

Appendix B
Representative Photos

41L
4ff
4.
4ff
.7.

CO -
A
4.-
AL.
4r,
L6
CY)
LU
(1)
CA
0
Photograph 3: P
CY)
rl—
+1
cy')
00
0
L6
CY)
ANfl
N4-
rah
7
. k'..p

No. 70237263
W rerracon
r
v
■
m
m
CO
LSD
CO
D
CO
CO
z
0
n
CO
co
N
n
Uj
m
a
d�
r
u
V-
N
N
O
r
■
+!
LO
0)
r-
C1
O
m
00
0
N
N
N
n
m
z
0
a�
N
0
Photograph 5: Tributary T1A (Clark Creek)
Photograph 6: Tributary T1 B (Clark Creek)
Sweetwater Ret Tap Line Relocation

No. 70237263
W rerracon
r-
m
a
■
4-
rn
+I
qZT
LC]
a
CO
CO
0
J
LO
O
CO
r
CV
L{7
m
Q
J
F--
Z
a
N
r
L*C
m
C4
■
M
+I
rn
0
m
CO
0
CO
n
iD
n
LO
CO
Q
J
Lu
a
0
r
9
Photograph 7: Tributary T2
Photograph 8: Tributary T3
Sweetwater Ret Tap Line Relocation

Proiect No. 70237263 rr ierraoon
0
0
■
w
r�
+I
m
rn
00
CY)
0
m
00
z
a
N
N
N
n
LO
m
Q
1=
0
0)
N
X
Photograph 9: Wetland W 1
Sweetwater Ret Tap Line Relocation

NOUVO013N dVl U31VMi33MS
0
a
U �
O
rc �
M
f y O
K
F
Q ~
W �wwmw W N
U
D O
O'
U Z
0oo Alp
c-
w
Z LLI
000
F—
L) _M SNz
� Y
W
W
O L U
Y Y
W �- W_
/� V r a
V� 7 �a/� �`
��zU� z®
Q F O Q - J
CO O Q U Z
W z N w
U
W > rnQ= uJ Uz o
/ V 4 N a _
QM G`I p. H �i 4 a -
I_ V r LLJ J jA W Q
57 V Of
w
LLI W W W
Y% Sri -,: H m > Q f
I 'irid'.f V5 a K 3 N
W
J °
�r
s= [¢ i - - 3
® o 0 w2. tow
r n o� a5� �8 -z' Z-0o
�/�/ z w _ -
�6Zo
x 'eo
W O oWW 3y a _o z 3 _p
0Q6 N� -_ � �� p5rc
Z tr�rlrUF o w HE ws� o mg 3o w
-_ _p Sxa¢u4a - uirc
W U zoos £y� N� _ _ ° _ -_
z p�zo a =' �000w� w
w aN r
Paz =w w=s ,F�� o=w- ;� H.
mm M�_ ~w
z�, '-z J23H"9 �a - o0a U = O„'lx o0
■ nz'g�oN OQ�Q `� o_ °rc�=ori mo °�,� Iz 1; z�z
a Ym �n� �aa`�_
Sz�€� W.z Ow �" oa � �EE3 zaW�N oFaW ok m
JOFQ�y�E E5w „ ='o 3°°r=o as
qQ6 ag��a J�w"'p'o p5g=o Uoio 0
a= =�w wao�oz�ow~aa°�,H pa°o833:99M zO.a° ez
a Q.0o
�j
�U
Q(n
a�D
�Q
�Q
v
rnU�
Z �
�
p
Q H
W
� �
t h NON
r - z
W
a
w�
�
W
Qp
O
��
J �
ikJ m
�
it
dU'
J
W
Z
Z
Q�
Q�wQw00
d0
aoa��N

NOUVO013N dVl U31VMi33MS
� S
o �
a
U
O z
w� O
fZ M
O
K �
ww
0
Q
y O
O N
0
y w
E
Q
111 �������/Z
�J ii Jm�
Y W O_a
w 3
wo
Oa
o �=
oww
lei
aN w woo- w
y
�3
p s
\ _�
o F=
_a N
-
aka
_
o
000
E....12i....y..
E
E
E
Citi-z o f a E E �w _ E
f E
-k
alp
a'2p aN`2p &�o
-moo
sp
orc - - a 9 9_ - -
2
o
y p m=
Cl)
a
o �¢
5
U
o
N3
o <�Z
Ga i £ �k wz
Z
w
<
OA
Wm�Y€
s of-N.
- 2�W
E�p�3
4
�
W
U
8' w< ecaW ' e,k
gip' C s€�.i `k °
U
? yCp
o
�£e= s
LWi
W
o
34
O
W.
RHO
G�
3Q
m� w 2pp°F'Yl 3-
mk `�- a te
<5'
^l
C�
cn
Cl)
w Nfig
9.
_
P} -
Z
sk J5
rc o g
IN
4
a�
paIL
o
.. 5 ka
H
€@s
ME
ue ' $mom �'T \ e^w
w4a "^p °
o
o O
o Gm„Nwwp°^w=
R:6 q N,_
U
w
-rc
-
o8-k, ioiu 2ra 3
`= F°=Ld
m
7`P-N,
.��asso
€°«-:°>
cn
j

NOUV0013N dVI U31VMi33MS
O N
rc
K U)
<
z
lei
Vo M
1: P�
rc
O
21
WN 1 MIN sp
ONE WE
NN,
6H
cc
a I "n
SH At -SIX
6 oil Mal Elm; a
io 117111.19."B'AJANISHIMI"M
61 1010VII1,0111:! ME; JUJI yNg 1 : TSMIg ;MINE I
is HAMM-! AM- Mog :019 ARMOR; - S
fshmg 2 NOW Mile: ­.._2 Man g _1.
1,1111046:W2,A limit is Mgg" 00911S: 21
IS611:9w 2, Eton IRM-A
E in g z E So
w
HAMM
INSIENgbil 8 6 "HII-MA W-6,1581-e
1
-,�-w--&A-EMlaI A
T Mt t
. -Ite. 0AWKWsi
gglI: !
q Ago 61 0W,
Of 1 f
0 1,1111SHU6
M111 x v I a I s 6 6 1 :4 1 a 01 go 11 1 6 'A 1 'S z.
WN
Who 19"p 1
PRE v WS ENQ
NNU 6' dw
Old 4 Re!
=1 I MI
S IRWIN
on,
OWN 6
—0 Mud
w Wsm WHIS WAS
08 H WHOM IM
phi'Nagy cold
M AN popS
lh-"H 0HAN
00 Gs
i�, H-W
1101"I NINO
Q0
O
o
IQ
pzp

NOUV0013N dV1 U31VMi33MS
rc
q 1- ok
LU 0
qo
W-H.-
-RIO-
d= -�m !X
Alp
&
HE H'E
K. H,
0.9
vgq R UWz N, �0 V
. . , �2 -. . w �, --R
MA.
UN
m.,pE H
S. Q qH,5,,E
qv -.e
-M�
P "UN
'z-'"- 5-Ne
zonolg —=pg, 8 UM,
0 'R 1p NU
--lig gq gp'..R 'g. -R� M. In >"3w-
m ! REM
En
W9
n
M
era "N Ei N-1-H. 3- U-N i
en p-ho W gaz. 9.P
z U OEM 0- 2 9, g�
0 Q . H. .......
------- ..�1�
RR
m
Ll
w
>
U)
W.
L'i
z
i I 1 0
E CD
z
z
<
N N
W. 0

Exhibit D
U.
---------------------
C : N T Eno C H
ENGINEERED SOLUTIONS
Corrugated Metal Pipe
Design Guide
C% NTECH'

Corrugated Metal Pipe (CMP) Design Guide
Table of Contents
Drainage Pipe Selection
Introduction......................................................................................................................3
Environment & Abrasion Guidelines / Reference Specifications..............................................4
Usage Guide for Drainage Products....................................................................................4
Product Dimensions and Hydraulics....................................................................................5
HEL-COR® Corrugated Steel Pipe
Heightof Cover Tables....................................................................................................... 7
HandlingWeights............................................................................................................ 10
CORLIX® Corrugated Aluminum Pipe
Heightof Cover Tables..................................................................................................... 11
HandlingWeights............................................................................................................ 12
ULTRA FLO@
Heightof Cover Tables..................................................................................................... 13
HandlingWeights............................................................................................................ 14
Installationof CMP.................................................................................................... 15
Miscellaneous
SmoothCar""................................................................................................................. 16
QUICKSTAB® Joint......................................................................................................... 17
EndSections................................................................................................................... 18
C=:► NTECH`
ENGINEERED SOLUTIONS

Durability Design Guide
Proper design of culverts and storm sewers requires structural,
hydraulic and durability considerations. While most designers
are comfortable with structural and hydraulic design, the
mechanics of evaluating abrasion, corrosion and water
chemistry to perform a durability design are not commonly
found in most civil engineering handbooks.
The durability and service life of a drainage pipe installation is
directly related to the environmental conditions encountered at
the site and the type of materials and coatings from which the
culvert is fabricated. Two principle causes of reduced service life
in drainage pipe materials are corrosion and abrasion.
Service life can be affected by the corrosive action of the
backfill in contact with the outside of a drainage pipe or more
commonly by the corrosive and abrasive action of the flow
in the invert of the drainage pipe. The design life analysis
should include a check for both the water side and soil side
environments to determine which is more critical— or which
governs service life.
The potential for metal loss in the invert of a drainage pipe due
to abrasive flows is often overlooked by designers and its effects
are often mistaken for corrosion. An estimate for potential
abrasion is required at each pipe location in order to determine
the appropriate material and gage.
This manual is intended to guide specifiers through the
mechanics of selecting appropriate drainage products to meet
service life requirements. The information contained in the
following pages is a composite of several national guidelines.
Using the CMP Design Guide
The choice of material, gage and product type can be extremely
important to service life. The following steps describe the
procedure for selecting the appropriate drainage product,
material and gage to meet a specific service life requirement.
Design Sequence
1. Select pipe or structure based on hydraulic and clearance
requirements. Use Tables 5 and 6 as reference for size
limits and hydraulic properties of all drainage products.
2. Use Height of Cover tables for the chosen pipe or structure
to determine the material gage required for the specific
loading condition.
3. Use Table 1 to select the appropriate material for the
site -specific environmental conditions. Whenever possible,
existing installations of drainage structures along the same
water course offer the most reliable estimate of long-
term performance for specific environment conditions.
In many cases, there will be more than one material that
is appropriate for the project environmental conditions.
Generally speaking, the metal material types increase
in price as you move from top down on Table 1. Please
contact your local Contech Sales Representative for pricing.
4. Use Table 2 to determine which abrasion level most
accurately describes the typical storm event (2 year storm).
The expected stream velocity and associated abrasion
conditions should be based on a typical flow and not a 1 C
or 50-year design flood.
5. Use Table 3 to determine whether the structural gage for
the selected material is sufficient for the design service life.
If the structural gage is greater than or equal to the gage
required for a particular abrasion condition and service life,
use the structural gage. Conversely, if the structural gage
is less than the gage required for a particular abrasion
condition and service life, use the gage required by Table
3.
Note:
Both Contech round pipe and pipe -arch are available with either helical
or annular corrugations. Contech HEL-COR pipe (helical corrugations) is
furnished with continuous lock seams and annular re -rolled ends or non-
rerolled ends. For 3"xl " and 5"x l " HEL-COR pipe -arch, we recommend
non-rerolled ends with flat or dimpled bands and flat gaskets. Contech
riveted pipe is furnished with annular corrugations only. The height of
cover tables in this guide are helical corrugations only. Consult your
Contech representative for Height of Cover tables on riveted pipe.

Material Type
Table 1 — Recommended Environments
Soil* and Water pH
Resistivity (ohm -cm)
3
1 4 5 6 7 8 9
10
11
12
Minimum
Maximum
Galvanized Steel*
2,000
10,000
Aluminized Steel Type 2
(ALT2)
1,500
N/A
Polymer -Coated
250
N/A
Aluminum Alloy
500
N/A
*Appropriate pH range for Galvanized Steel is 6.0 to 10
Abrasion Level
Abrasion Condition
Bed Load
Flow Velocity (fps)
1
Non -Abrasive
None
Minimal
2
Low Abrasion
Minor
< 5
3
Moderate Abrasion
Moderate
5- 15
4
Severe Abrasion
Heavy
> 15
"Interim Direct Guidelines on Drainage Pipe Alternative Selection." FHWA, 2005.
Application
Table 3 - Drainage Product Usage Guide
Culverts, Storm Drain, Cross Drain, Median Drain, Side Drain
Roadway Classification
Rural
Minor
Major
Urban
Rural
Minor
Major
Urban
Rural
Minor
Major
Urban
Design Service Life
25
50
75
100
25
50
75
100
25
50
75
100
Abrasion Level
Abrasion Level 1 & 2
Abrasion Level 3
Abrasion Level 4
CMP (1/2" & 1" deep corrugations), ULTRA FLO' & Smooth Car"
Minimum gage required to meet design service life, assuming that structural design has been met.
Galvanized (2 oz.)
16
12
10
84
14 10
8
N/A
145
10,
85
N/A
Galvanized and Asphalt Coated
16
14
10
8
14
12
8
N/A
145
125
85
N/A
Galv., Asphalt Coated & Paved Invert
16
16
14
10
16
14
12
8
14
12
10
N/A
Aluminized Type 2 (ALT2)
16
16
16
14
14
14
14
12
146
146
146
126
Polymer -Coated
16
16
168
16'
16
16
168
16'
14'
14'
14'-8
14'-9
Aluminum Alloy
16
16
16
16
14
14
14
14
145
145
145
145
Based on Table 1 - Recommended Environments.
Smooth Corr" Steel Pipe combines a corrugated steel exterior shell with a hydraulically smooth interior liner.
Service life estimates for ULTRA FLO' and Smooth Cor- Pipe assume a storm sewer application. Storm sewers rarely achieve abrasion levels 3 or 4.
For applications other than storm sewers or abrasion conditions above Abrasion Level 2, please contact your Contech Sales Representative for
gage and coating recommendations.
Design service life for 8 GA galvanized is 97 years.
Invert protection to consist of velocity reduction structures.
Asphalt coated and paved invert or velocity reduction structures are needed.
Requires a field applied concrete paved invert with minimum thickness 1 " above corrugation crests.
75 year service life for polymer -coated is based on a pH range of 4-9 and resistivity greater than 750 ohm -cm.
7 00 year service life for polymer -coated is based on a pH range of 5-9 and resistivity greater than 1500 ohm -cm.
AASHTO Reference Specifications
Material Type Material Pipe Design* Installation*
CMP (1/2" or 1" deep corrugations)
Galvanized (2 oz.)
M218
M36
Section 12
Section 26
Asphalt Coated
M190
M36
Section 12
Section 26
Asphalt Coated and Paved Invert
M190
M36
Section 12
Section 26
X
Aluminized Type 2
M274
M36
Section 12
Section 26
a
Polymer -Coated
M246
M36 & M245
Section 12
Section 26
L
Aluminum Alloy
M197
M196
Section 12
Section 26
o.
ad
ULTRA FLO" (3/4" x 3/4" x 7-1/2" corrugation)
a
Galvanized (2 oz.)
M218
M36
Section 12
Section 26
d
Aluminized Type 2
M274
M36
Section 12
Section 26
Polymer -Coated
M246
M36 & M245
Section 12
Section 26
Aluminum Alloy
M197
M196
Section 12
Section 26
Smooth Car"
Polymer -Coated M246 M36 & M245 Section 12 Section 26
* AASHTO LRFD Bridge Design Specification and AASHTO Standard Specification for Highway Bridges

Table 5
Drainage Product
- Product Dimensions
Common Use.
Size Limits*
Manning's "n"
Value
Minimum
Maximum
y
.EL
d
9
Corrugated Steel (1/2" deep corrugation)
Corrugated Steel with Paved Invert (1/2" deep corrugation)
Corrugated Steel (1" deep corrugation)
Corrugated Steel with Paved Invert (1 " deep corrugation)
Corrugated Aluminum (1 /2" deep corrugation)
Corrugated Aluminum (1" deep corrugation)
Culverts, small
bridges, storm
water detention/
retention systems,
conduits, tunnels,
storm sewers.
12"
84"
0.011 -0.021
12"
84"
0.014 - 0.020
54"
144"
0.022 - 0.021
54"
144"
0.019 - 0.023
12"
72"
0.011 -0.021
30"
120"
0.023 -0.027
0
ULTRA FLO' Steel
ULTRA FLO® Aluminum
Smooth Car'" Steel (1/2" deep corrugation)
Smooth Car" Steel (1" deep corrugation)
Storm sewers,
culverts, storm
water detention/
retention systems.
18"
102"
0.012
18"
84"
0.012
18"
66"
0.012
48"
126"
0.012
s
Q
a
Corrugated Steel (1/2" deep corrugation)
Corrugated Steel with Paved Invert (1/2" deep corrugation)
Corrugated Steel (1" deep corrugation)
Corrugated Steel with Paved Invert (1" deep corrugation)
Corrugated Aluminum (1 /2" deep corrugation)
Corrugated Aluminum (1" deep corrugation)
Culverts, small
bridges, storm
water detention/
retention systems,
conduits, tunnels,
storm sewers.
1 7" x 13"
83" x 57"
0.011 -0.021
17" x 13"
83" x 57"
0.014 - 0.019
53" x 41"
142" x 91"
0.023 -0.027
53" x 41"
142" x 91"
0.019 - 0.022
17" x 13"
71" x 47"
0011 - 0.021
60" x 46"
1 12" x 75"
0.023 -0.027
d
ULTRA FLO" Steel
ULTRA FLO® Aluminum
Smooth Car- Steel (1 /2" deep corrugation)
Smooth Car" Steel (1" deep corrugation)
Storm sewers,
culverts, storm
water detention/
retention systems.
20" x 16"
66" x 51"
0.012
20" x 16"
66" x 51"
0.012
2 1 " x 15"
77" x 52"
0.012
53" x 41"
137" x 87"
0.012
* For sizes outside of these limits, please contact your Contech representative.
2 2/3" x 1/2"
12 in.
15 in.
18 in.
24 in.
36 in.
48 in.
60 in. +
8 in.
10 in.
All Diameters
Unpaved
0.011
0.012
0.013
0.015
0.018
0.020
0.021
0.012
0.014
0.024
Paved Invert
0.014
0.017
0.020
0.019
0.021
Smooth Car'"
0.012
0.012
0.012
0.012
0.012
N/A
Helical*- 3" x 1"
3" x 1"
36 in.
42 in.
48 in.
54 in.
60 in.
66 in.
72 in.
78 in. +
All Diameters
Unpaved
0.022
0.022
0.023
0.023
0.024
0.025
0.026
0.027
0.027
Paved Invert
0.019
0.019
0.020
0.020
0.021
0.022
0.022
0.023
0.023
Smooth Car"
0.012
0.012
0.012
0.012
0.012
0.012
N/A
Helical* - 5" x 1"
All Diameters
5" x 1"
48 in.
54 in.
60 in.
66 in.
72 in.
78 in. +
Unpaved
0.022
0.022
0.023
0.024
0.024
0.025
N/A
Paved Invert
0.019
0.019
0.020
0.021
0.021
0.022
N/A
ULTRA FLO®
3/4" x 3/4" x 7-1/2"
All diameters n - 0.012
N/A
* Tests on helically corrugated pipe demonstrate a lower coefficient of roughness than for annularly corrugated
steel pipe. Pipe -arches have approximately the some roughness characteristics as their round equivalent pipes.

Area and Hydraulic Radius for Corrugated Steel Pipe Flowing Full
Round Pipe
Diameter
(in.)
- Area & Hydraulic
Radius
Hydraulic Radius
ft)
0.250
Area
(FF)
12
0.8
15
1.2
0.312
18
1.8
0.375
21
2.4
0.437
24
3.1
0.500
30
4.9
0.625
36
7.1
0.750
42
9.6
0.875
48
12.6
1.000
54
15.9
1.125
60
19.6
1.250
23.8
1.375
72
28.1
1.500
78
33.2
1.625
84
38.5
1.750
90
44.2
1.875
96
50.3
2.000
102
56.8
2.125
108
63.6
2.250
114
70.9
2.375
120
78.5
2.500
126
86.6
2.625
132
95.0
2.750
138
103.9
2.875
144
113.1
3.000
Notes:
1. Listed pipe arch dimensions do not include tolerance.
2. For additional detail, please reference the hydraulic radius
tables (Figure 4.32 and 4.33) found in the NCSPA CSP
Design Manual, 2008.
Pipe -Arch -Area & Hydraulic Radius
2 2/3" x 1/2" Corrugated Steel Pipe
Diameter
(in.)
Pipe -Arch Equivalent
Size (in.)
Waterway Area
(Ftz)
Hydraulic Radius
A/TrD
(ft.)
15
17x 13
1.1
0.280
18
21 x 15
1.6
0.340
21
24 x 18
2.2
0.400
24
28 x 20
2.4
0.462
30
35 x 24
4.5
0.573
36
42 x 29
6.5
0.690
42
49 x 33
8.9
0.810
48
57 x 38
11.6
0.924
54
64 x 43
14.7
1.040
60
71 x 47
18.1
1.153
66
77 x 52
21.9
1.268
72
83 x 57
26.0
1.380
Pipe -Arch - Area & Hydraulic Radius
3" x 1" or 5" x 1" Corrugated Steel Pipe
Diameter
(in.)
Pipe -Arch Equivalent
Size (in.)
Waterway Area
(Ftz)
Hydraulic Radius
A/71D
54
60 x 46
15.6
1.104
60
66 x 51
19.3
1.230
66
73 x 55
23.2
1.343
72
81 x 59
27.4
1 .454
78
87 x 63
32.1
1.573
84
95 x 67
37.0
1.683
90
103 x 71
42.4
1.800
96
112 x 75
48.0
1 .91 1
102
117 x 79
54.2
0 2.031
108
128 x 83
60.5
2.141
114
137 x 87
67.4
2.259
120
142 x 91
74.5
2.373
ULTRA FLOc Pipe -Arch -Area & Hydraulic Radius
2 2/3" x 1/2 ° Corrugated Steel Pipe
Diameter
(in.)
Pipe -Arch Equivalent
Size (in.)
Waterway Area
(Ft2)
Hydraulic Radius
Mil)
(ft.)
18
20 x 16
1.7
0.36
21
23 x 19
2.3
0.42
24
27 x 21
3.0
0.48
30
33 x 26
4.7
0.60
36
40 x 31
6.7
0.71
42
46 x 36
9.2
0.84
48
53 x 41
12.1
0.96
54
60 x 46
15.6
1.10
60
66 x 51
19.3
1.23

HEL-COR° Corrugated Steel Pipe
2 2/3" x 1/2" Height of Cover Limits for Corrugated Steel Pipe
H 20 and H 25 Live Loads 0 H 20 and H 25 Live Loads, Pipe -Arch
Diameter
in.
Minimum
Cover
in.
Maximum Cover(') ft.
Specified Thickness in. and Gage
(0.052)
18
(0.064)
16
(0.079)
14
(0.109)
12
(0.138)
10
(0.168) 8
6(8)
12
388
486
8(8)
12
291
365
10(8)
12
233
292
12
12
197
248
310
15
12
158
198
248
18
12
131
165
206
21
12
113
141
177
248
24
12
98
1 124
155
1 217
30
12
99
124
173
36
12
83
103
145
186
42
12
71
88
124
159
195
48
12
62
77
108
139
171
54
12
67
94
122
150
60
12
80
104
128
66
12
68
88
109
72
12
75
93
78
12
79
84
12
66
E 80 Live Loads
Diameter
in.
Minimum
Cover in.
Maximum Coverts ft.
S ecified Thickness in. and Gage
(0.052)18
(0.064)
16
(0.079)14
(0.109)12
(0.138)11
(0.168) 8
12
12
197
248
310
15
12
158
198
248
18
12
131
165
206
21
12
113
141
177
248
24
12
98
124
155
217
30
12
99
124
173
36
12
83
103
145
186
42
12
71
88
124
159
195
48
62
77
108
139
171
54
18
67
94
122
150
60
18
80
104
128
66
18
68
88
109
72
18
75
93
78
24
79
84
24
66
Heights of Cover Notes:
1. These tables are for lock -seam or welded -seam construction. They are
not for riveted construction. Consult your Contech Sales Representative
for Height of Cover tables on riveted pipe.
2. These values, where applicable, were calculated using a load factor of
K=0.86 as adopted in the NCSPA CSP Design Manual, 2008.
3. The haunch areas of a pipe -arch are the most critical zone for
backfilling. Extra care should be taken to provide good material and
compaction to a point above the spring line.
4. E 80 minimum cover is measured from top of pipe to bottom of tie.
5. H 20 and H 25 minimum cover is measured from top of pipe to bottom
of flexible pavement or top of rigid pavement.
6. The pipe -arch tables are based on the corner bearing pressures
as shown. These values may increase or decrease with changes in
allowable corner bearing pressures. Consider the use of a round pipe in
cases where the height of cover exceeds 8'.
Size
Minimum
Thickness
(in.)
Minimum Cover
(1°')
Maximum Cover (ft.)
Round Equivalent
(in.)
Span x Rise
(in.)
2 Tons/Ft.' Corner
Bearing Pressure
15
17x13
0.064
12
16
18
21 x 15
0.064
12
15
21
24 x 18
0.064
12
15
24
28 x 20
0.064
12
15
30
35 x 24
0.064
12
15
36
42 x 29
0.064
12
15
42
49 x 33
0.064*
12
15
48
57 x 38
0.064*
12
15
54
64 x 43
0.079*
12
1 15
60
71 x 47
0.109*
12
15
66
77 x 52
0.109*
12
15
72
83 x 57
0.138*
12
15
E 80 Live Loads, Pipe -Arch
Size
Minimum
Thickness (in.)
Minimum Cover
(in.)
Maximum Cover (ft.)
Round Equivalent
(in.)
Span x Rise (in.)
3 Tons/Ft.' Corner
Bearing Pressure
15
17 x 13
0.079
24
22
18
21 x 15
0.079
24
22
21
24 x 18
0.109
24
22
24
28 x 20
0.109
24
22
30
35 x 24
0.138
24
22
36
42 x 29
0.138
24
22
42
49 x 33
0.138*
24
22
48
57 x 38
0.138*
24
22
54
64 x 43
0.138*
24
22
60
71 x 47
0.138*
24
1 22
* These values are based on the AISI Flexibility Factor limit (0.0433 x 7.5) for
pipe -arch.
7. For construction loads, see Page 75.
8. 1-'/2" x'/4" corrugation. H 20, H 25 and E 80 loading.
9. Smooth Car'" has some Height of Cover properties as corrugated steel
pipe. The exterior shell of Smooth Cor' is manufactured in either 2 213"
x'/2" or 3" x 1" corrugations; maximum exterior shell is 72 GA.

5" x 1" or 3" x 1" Height of Cover Limits for
Corrugated Steel Pipe
H 20 and H 25 Live Loads
Diameter
in.
Minimum
Cover
in.
Maximum Cover
ft.
Specified Thickness
in.
and Gage
(0.064)
16
(0.079)14
(0.109)12
(0.138)10
(0.168)
8
54
12
56
70
98
127
155
60
12
50
63
88
114
139
66
12
46
57
80
103
127
72
12
42
52
74
95
116
78
12
39
48
68
87
107
84
12
36
45
63
81
99
90
12
33
42
59
76
93
96
12
31
39
55
71
87
102
18
29
37
52
82
108
18
77
114
18
32
72
120
18
30
66
126
18
39
50
61
132
18
36
46
58
138
18
33
43
53
144
18
39
49
Maximum cover heights shown are for 5" x 7 ".
To obtain maximum cover for 3" x 7 ", increase these values by 72%.
E 80 Live Loads
Diameter or
Span
in.
Minimum
Cover
(in.)
18
Maximum Cover ft.
S ecified Thickness
in.
and Gage
(0.064)
16
(0.079)14
(0.109)12
(0.138)10
(0.168) 8
54
56
70
98
127
155
60
18
50
63
88
114
139
66
18
46
57
80
103
127
72
18
42
74
95
116
78
24
39
48
68
87
107
84
24
36
45
63
81
99
90
24
330)
42
59
76
93
96
24
310)
39
55
71
87
102
30 11
290)
37
52
67 11
82
108
30
35
49
63
77
114
30
320)
45
58
72
120
30
30(1
126
36
39
50
61
132
36
36
46
58
138
36
330)
43
53
144
1 36
39
49
Maximum cover heights shown are for 5" x 7 ".
To obtain maximum cover for 3" x 7 ", increase these values by 72%.
(1) These diameters in these gages require additional minimum cover.
Heights of Cover Notes:
1. These tables are for lock -seam or welded -seam construction. They are not
for riveted construction. Consult your Contech Sales Representative for
Height of Cover tables on riveted pipe.
2. These values, where applicable, were calculated using a load factor of
K=0.86 as adopted in the NCSPA CSP Design Manual, 2008.
3. The span and rise shown in these tables are nominal. Typically the actual
rise that forms is greater than the specified nominal. This actual rise is
within the tolerances as allowed by the AASHTO & ASTM specifications.
The minimum covers shown are more conservative than required by the
AASHTO and ASTM specifications to account for this anticipated increase
in rise. Less cover height may be tolerated depending upon actual rise of
supplied pipe -arch.
4. The haunch areas of a pipe -arch are the most critical zone for backfilling.
Extra care should be taken to provide good material and compaction to a
point above the spring line.
5" x 1" Pipe -Arch Height of Cover Limits for
Corrugated Steel Pipe
H 20 and H 25 Live Loads
Size
Minimum
Thickness (in.)
Minimum
Cover
(in)
Maximum Cover (ft.)
Round
Equivalent
(in.)
Nominal
2 Tons/Ft.' Corner
Bearing Pressure
Min. S an
in.
Max. Rise
in.
54
60 -2.7
46 +2.7
0.109
18
21
60
66 -3.0
51 +3.0
0.109
18
21
66
73 -3.3
55 +3.3
0.109
18
21
72
81 -3.6
59 +3.6
0.109
18
21
78
87 -4.4
63 +4.4
0.109
18
20
84
95-48
67 +4.8
0.109
18
20
90
103 -5.2
71 +5.2
0.109
18
20
96
1 12 -5.6
75 +5.6
0.109
21
20
102
1 17 -5.9
79 +5.9
0.109
21
19
108
128 -6.4
83 +6.4
0.109
24
19
1 14
137 -6.9
87 +6.9
0.109
24
19
120
142 -7.1
91 +7.1
0.138
24
19
Larger sizes are available in some areas of the United States. Check with your
local Contech representative. Negative and positive numbers listed with span
and rise dimensions are negative and positive tolerances, no tolerance in
opposite direction.
E 80 Live Loads, Pipe -Arch
Size
Minimum
Thickness (in.)
Minimum
Cover
(in.)
Maximum Cover (ft.)
Round
Equivalent (in.)
Nominal
s
2Tons/Ft. Corner
Bearing Pressure
Min. Span
in.
Max. Rise
in.
54
60 -2.7
46 +2.7
0.109
30
21
60
66 -3.0
51 +3.0
0.109
30
21
66
73 -3.3
55 +3.3
0.109
30
21
72
81 -3.6
59 +3.6
0.109
30
21
78
87 -4.4
63 +4.4
0.109
30
18
84
95-4 8
67 +4.8
0.109
30
18
90
103 -5.2
71 +5.2
0.109
36
18
96
112 -5.6
75 +5.6
0.109
36
18
102
1 17 -5.9
79 +5.9
0.109
36
17
108
128 -6.4
83 +6.4
0.109
42
17
114
137 -6.9
87 +6.9
0.109
42
17
120
142 -7.1
91 +7.1
0.138
42
17
Some 3" x 7" and 5" x 7" minimum gages shown for pipe -arch are due to
manufacturing limitations. Negative and positive numbers listed with span and
rise dimensions are negative and positive tolerances, no tolerance in opposite
direction.
5. E 80 minimum cover is measured from top of pipe to bottom of tie.
6. H 20 and H 25 minimum cover is measured from top of pipe to bottom of
flexible pavement or top of rigid pavement.
7. The pipe -arch tables are based on the corner bearing pressures as shown.
These values may increase or decrease with changes in allowable corner
bearing pressures. Consider the use of a round pipe in cases where the
height of cover exceeds 8'.
8. For construction loads, see Page 75.
9. Smooth CorT" has some Height of Cover properties as corrugated steel
pipe. The exterior shell of Smooth Corr" is manufactured in either 2 213" x
'12' or
3"x I' corrugations; maximum exterior shell is 72 GA.

3" x 1" Pipe -Arch Height of Cover Limits for
Corrugated Steel Pipe -Arch
H 20 and H 25 Live Loads C�)
Size
Minimum
Thickness
(in.)
Minimum
Cover
(in.)
Maximum Cover
Round
Equivalent
q
(in.)
Nominal
2 Tons/Ft.2 Corner
Bearing Pressure
M. S an
in.
Max. Rise
in.
48
53 -2.4
41 +2.4
0.079
12
25
54
60 -2.7
46 +2.7
0.079
15
25
60
66 -3.0
51 +3.0
0.079
15
25
66
73 -3.3
55 +3.3
0.079
18
24
72
81 -3.6
59 +3.6
0.079
18
21
78
87 -4.4
63 +4.4
0.079
18
20
84
95 -4.8
67 +4.8
0.079
18
20
90
103 -5.2
71 +5.2
0.079
18
20
96
1 12 -5.6
75 +5.6
0.079
21
20
102
1 17 -5.9
79 +5.9
0.109
21
19
108
128 -6.4
83 +6.4
0.109
24
19
114
137 -6.9
87 +6.9
0.109
24
19
120
1 142 -7.1
1 91 +7.1
1 0.138
24
1 19
Larger sizes are available in some areas of the United States. Check with
your local Contech Sales Representative. Negative and positive numbers
listed with span and rise dimensions are negative and positive tolerances, no
tolerance in opposite direction.
E 80 Live Loads, Pipe -Arch
Size
Minimum
Thickness
(in.)
Minimum
Cover
(in.)
Maximum Cover (ft.)
Round
Equivalent
(in.)
Nominal
2 Tons/Ft.2 Corner
Bearing Pressure
Min. Span
in.
Max. Rise
in.
48
53 -2.4
41 +2.4
0.079
24
25
54
60 -2.7
46 +2.7
0.079
24
25
60
66 -3.0
51 +3.01
0.079
24
1 25
66
73 -3.3
55 +3.3
0.079
30
24
72
81 -3.6
59 +3.6
0.079
30
21
78
87 -4.4
63 +4.4
0.079
30
18
84
95 -4.8
67 +4.8
0.079
30
18
90
103 -5.2
71 +5.2
0.079
36
18
96
1 12 -5.6
75 +5.6
0.079
36
18
102
1 17 -5.9
79 +5.9
0.109
36
17
108
128 -6.4
83 +6.4
0.109
42
17
114
137 -6.9
87 +6.9
0.109
42
17
120
142 -7.1
91 +7.1
0.138
42
17
Some 3" x 1 " and 5" x 1 " minimum gages shown for pipe -arch are due to
manufacturing limitations. Negative and positive numbers listed with span
and rise dimensions are negative and positive tolerances, no tolerance in
opposite direction.
Heights of Cover Notes:
1. These tables are for lock -seam or welded -seam construction. They are
not for riveted construction. Consult your Contech Sales Representative
for Height of Cover tables on riveted pipe.
2. These values, where applicable, were calculated using K=0.86 as
adopted in the NCSPA CSP Design Manual, 2008.
3. The span and rise shown in these tables are nominal. Typically the actual
rise that forms is greater than the specified nominal. This actual rise is
within the tolerances as allowed by the AASHTO & ASTM specifications.
The minimum covers shown are more conservative than required by
the AASHTO and ASTM specifications to account for this anticipated
increase in rise. Less cover height may be tolerated depending upon
actual rise of supplied pipe -arch.
4. The haunch areas of a pipe -arch are the most critical zone for
backfilling. Extra care should be taken to provide good material
and compaction to a point above the spring line.
5. E 80 minimum cover is measured from top of pipe to bottom of tie.
6. H 20 and H 25 minimum cover is measured from top of pipe to bottom
of flexible pavement or top of rigid pavement.
7. The pipe -arch tables are based on the corner bearing pressures
as shown. These values may increase or decrease with changes in
allowable corner bearing pressures. Consider the use of a round pipe in
cases where the height of cover exceeds 8'.
8. For construction loads, see Page 75.
9. Smooth Car" has same Height of Cover properties as corrugated steel
pipe. The exterior shell of Smooth Car'" is manufactured in either 2 213"
x'12" or 3" x 1 " corrugations; maximum exterior she// is 12 GA.

Approximate Weight (lbs/ft)
HEL-COR° Corrugated Steel Pipe
(Estimated Average Weights -Not for
Specification Use)
Inside Diameter Specified Thickness
in. in.
Galvanized & ALT2
Asphalt Coated
6
0.052
4
5
0.064
5
6
8
0.052
5
6
0.064
6
7
10
0.052
6
7
0.064
7
8
Steel Thicknesses by Gage
Gage (GA) 18 16 14 12 10 8
Thickness .052 1 .064 .079 .109 .138 1 .168
Inside
Diameter
(in.)
2
Specified
Thickness
(in.)
2/3" x 1/2"
Galvanized &
ALT2
Corrugation
Asphalt
Coated
Asphalt Coated w/
Paved Invert
rM
Smooth Cor
0.052
8
10
13
12
0.064
10
12
15
0.079
12
14
17
0.052
10
13
16
15
0.064
12
15
18
0.079
15
18
21
0.052
12
16
19
18
0.064
15
19
22
25
0.079
18
22
25
28
0.052
14
18
23
21
0.064
17
21
26
29
0.079
21
25
30
33
0.109
29
33
33
41
0.052
15
20
26
24
0.064
19
24
30
30
0.079
24
29
35
38
0.109
33
44
47
0.064
24
30
36
42
30
0.079
30
36
42
48
0.109
41
47
53
59
0.064
29
36
44
51
36
0.079
36
43
51
58
0.109
49
56
64
71
8
62
69
77
0.064
34
1 42
51
60
0.079
42
50
59
68
42
0.109
57
65
74
82
0.138
72
80
89
0.168
88
96
105
0.064
38
48
57
67
0.079
48
58
67
77
48
0.109
65
75
84
94
0.138
82
92
101
0.168
100
110
119
0.079
54
65
76
87
54
0.109
73
84
95
106
0.138
92
103
114
0.168
112
123
134
0.109
81
92
106
117
60
0.138
103
114
128
0.168
124
135
149
0.109
89
101
117
129
66
0.138
113
125
141
0.168
137
149
165
72
0.138
123
137
154
(2)
0.168
149
163
180
78
0.168
161
177
194
(2)
84
0.168
173
190
208
(2)
Speed
Inside Thickness
Diameter (in.) (in)
Galvanized &
ALT2
Asphalt
Coated
Asphalt Coated w/
Paved Invert
Smooth OF'
0.064
50
66
84
84
0.079
61
77
95
95
54
0.109
83
100
118
118
0.138
106
123
140
0.168
129
146
163
0.064
55
73
93
93
0.079
67
86
105
105
60
0.109
92
110
130
130
0.138
118
136
156
0.168
143
161
181
0.064
60
80
102
102
0.079
74
94
116
116
66
0.109
101
121
143
145
0.138
129
149
171
0.168
157
177
199
0.064
66
88
111
112
0.079
81
102
126
127
72
0.109
110
132
156
157
0.138
140
162
186
0.168
171
193
217
0.064
71
95
121
120
0.079
87
ill
137
136
78
0.109
119
143
169
168
0.138
152
176
202
0.168
185
209
235
0.064
77
102
130
130
0.079
94
119
147
147
84
0.109
128
154
182
181
0.138
164
189
217
0.168
199
224
253
0.064
82
109
140
139
0.079
100
127
158
157
90
0.109
137
164
195
194
0.138
175
202
233
0.168
213
240
271
0.064
87
116
149
148
0.079
107
136
169
168
96
0.109
147
176
209
208
0.138
188
217
250
0.168
228
257
290
0.064
93
124
158
158
0.079
114
145
179
179
102
0.109
155
186
220
222
0.138
198
229
263
0.168
1 241
272
306
0.079
120
153
188
189
108
0.109
165
198
233
235
0.138
211
244
279
0.168
256
289
324
0.079
127
162
199
200
114
0.109
174
209
246
248
0.138
222
257
294
0.168
271
306
343
0.079
134
171
210
211
120
0.109
183
220
259
260
0.138
234
271
310
0.168
284
321
360
0.109
195
233
274
276
126
0.138
247
285
326
0.168
299
338
378
0.109
204
244
287
289
132
0.138
259
299
342
0.168
314
354
397
0.109
213
255
300
300
138
0.138
270
312
357
0.168
328
370
415
144
0.138
282
326
373
0.168
344
388
435
(2)
1. Weights for polymer -coated pipe are 1% to 4% higher, varying by
gage.
2. Please contact your Contech Sales Representative.
3. Weights listed in the 3" x 1 " or 5" x 1 " table are for 3" x 1 " pipe.
Weights for 5" x 1 " are approximately 12% less than those used in this
table, for metallic coated pipe.
m

CORLIXO Corrugated Aluminum Pipe
2 2/3" X 1/2" Height of Cover Limits for
Corrugated Aluminum Pipe
HL 93 Live Load 0
Diameter
(in.)
Minimum
(In )r
Maximum Cover ft.
Specified Thickness in. and
Gage
(0.048)
18
(0.060)
16
(0.075)
14
(0.105)
12
(0.135)
10
(0.164) 8
60)
12
197
247
80)
12
147
185
10(4)
12
119
148
12
12
125
157
15
12
100
125
18
12
83
104
21
1 12
1 71
89
24
12
62
78
109
27
12
69
97
30
12
62
87
36
12
51
73
94
42
1 12
62
80
48
12
54
70
85
54
15
48
62
76
60
1 15
52
64
66
18
52
43
3" x 1" Height of Cover Limits for Corrugated
Aluminum Pipe
HL 93 Live Load 0
Diameter
(in.)
Minimum
Cove(in.)
Maximum Cover ft.
Specified Thickness in. and Gage
(0.060)
(0.075)14
(0.105)12
(0.135)10
(0.164) 8
30
12
57
72
101
135
159
36
12
47
60
84
112
132
42
12
40
51
72
96
113
48
12
35
44
62
84
99
54
15
31
39
55
74
88
60
15
28
35
50
67
79
66
18
25
32
45
61
72
72
18
23
29
41
56
66
78
21
27
38
51
61
84
21
35
48
56
90
24
33
44
52
96
24
31
41
49
102
24
39
46
108
24
37
43
114
24
39
120
24
36
2 2/3" x 1 /2" Height of Cover Limits for
Corrugated Aluminum Pipe -Arch
HL 93 Live Load
C:)
Size
Minimum
Gage
Minimum
Cover
(in.)
Maximum Cover
ft.
Round Equivalent
in.
Span x Rise
in.
2 Tons/Ft.2 for
Corner Bearing Pressures
15
17x 13
16
12
13
18
21 x 15
16
12
12
21
24x18
16
12
12
24
28 x 20
14
12
12
30
35 x 24
14
12
12
36
42 x 29
12
12
12
42
49 x 33
12
15
12
48
57 x 38
10
15
12
54
64 x 43
10
18
12
60
71 x 47
8(5)
18
12
Notes:
1. Height of cover is measured to top of rigid pavement or to bottom
of flexible pavement.
2. Maximum cover meets AASHTO LRFD design criteria.
3. Minimum cover meets AASHTO and ASTM B 790 design criteria.
4. 1 112" x 114" corrugation.
5. 8 GA pipe has limited availability.
6. For construction loads, see page 75.
7. Consult your Contech Sales Representative for E 80 Live Loads.
3" x 1" Height of Cover Limits for Corrugated
Aluminum Pipe -Arch
HL 93 Live Load
Size
Minimum
Gage
Minimum
(over
(in)
Maximum Cover
(ft.)
Round Equivalent
(in.)
Span x Rise
(in.)
2 Tons/Ft.' for
Corner Bearing Pressures
54
60 x 46
14
15
20
60
66 x 51
14
18
20
66
73 x 55
14
21
20
72
81 x 59
12
21
16
78(4)
87 x 63
12
24
16
84(4)
95 x 67
12
24
16
90(4)
103 x 71
10
24
16
96(4)
112 x 75
8(5)
24
16
Notes:
1. Height of cover is measured to top of rigid pavement or to bottom
of flexible pavement.
2. Maximum cover meets AASHTO LRFD design criteria.
3. Minimum cover meets ASTM B 790 design criteria.
4. Limited availability on these sizes.
5.8 GA pipe has limited availability.
6. For construction loads, seepage 75.
7. Consult your Contech Sales Representative for E 80 Live Loads.

Approximate Weight/Foot
CORLIX° Corrugated Aluminum Pipe
(Estimated Average Weights -Not for Specification Use)
Weight Lb./Lineal Ft.'
Diameter
5 ecified Thickness in. and Ga e
(in.)
(0.048)
18
(0.060)
16
(0.075)
14
(0.105)
12
(0.135)
10
(0.164)
8
6(2)
1.3
1.6
8(2)
1.7
2.1
10(2)
2.1
2.6
12
3.2
4.0
15
4.0
4.9
18
4.8
5.9
21
5.6
6.9
24
6.3
7.9
10.8
27
8.8
12.2
30
9.8
13.5
36
11.8
16.3
20.7
42
19.0
24.2
48
21.7
27.6
33.5
54
24.4
31.1
37.7
60
34.6
41.9
66
46.0
72
50.1
3" x I" Corrugation Aluminum Pipe
Weight Lb./Lineal Ft.'
Diameter
Specified Thickness in. and Gage
in.
(0.060)
16
(0.075)
14
(0.105)
12
(0.135)
10
(0.164)
8
30
9.3
11.5
15.8
20.2
24.5
36
11.1
13.7
18.9
24.1
29.3
42
12.9
16.0
22.0
28.0
34.1
48
14.7
18.2
25.1
32.0
38.8
54
16.5
20.5
28.2
35.9
43.6
60
18.3
22.7
31.3
40.0
48.3
66
20.2
24.9
34.3
43.7
53.0
72
22.0
27.1
37.4
47.6
57.8
78
29.3
40.4
51.5
62.5
84
43.5
55.4
67.2
90
46.6
59.3
71.9
96
49.6
63.2
76.7
102
66.6
80.8
108
71.0
86.1
114
90.9
120
95.6
Notes:
1. Helical lockseam pipe only. Annular riveted pipe weights will be
higher.
2. 7 '/2" x 1/4" Corrugation.
3. 8 GA pipe has limited availability.
12

ULTRA FLO@
Galvanized, ALUMINIZED STEEL Type 2 or 0
Polymer -Coated** Steel ULTRA FLO' H 20 and H 25 Live Load
Diameter in.
Minimum/Maximum Cover ft.
Specified Thickness in. and Gage
(0.064)
16
(0.079)
14
(0.109)
12
(0.138)
10
18
1.0/108
1.0/151
21
1.0/93
1.0/ 130
1.0/216
24
1.0/81
1.0/ 113
1.0/ 189
30
1.0/65
1.0/91
1.0/ 151
36
1.0/54
1.0/75
1.0/126
42
1.0/46
1.0/65
1.0/ 108
48
1.0/40
1.0/56
1.0/94
1.0/ 137
54
1.25 / 36
1.25 / 50
1.0 / 84
1.0 / 122
60
1.25*/32*
1.25 / 45
1.0 / 75
1.0 / 109
66
1.5/41
1.25/68
1.25/99
72
1.5*/37*
1.25 / 63
1.25 / 91
78
1.75*/34*
1.5 / 58
1.5 / 84
84
1 .75 / 54
1.75178
90
2.0*/50*
2.0 / 73
96
2.0*/47*
2.0 / 68
102
2.5*/43*
2.5 / 61
108
2.5*/54*
114
2.5*/49*
120
Galvanized, ALUMINIZED STEEL Type 2 or
Polymer -Coated** Steel ULTRA FLO" E 80 Live Load 0
Minimum/Maximum Cover ft.
S pecified Thickness in. and Ga e
Diameter in.
(0.064)
16
(0.079)
14
(0.109)
12
(0.138)
10
18
1.0/93
1.0/130
21
1.0/79
1.0/ 111
1.0/ 186
24
1.0/69
1.0/97
1.0/ 162
30
1.0/55
1.0/78
1.0/ 130
36
1.5/46
1.25/65
1.0/108
42
1.5 / 39
1.5 / 55
1.25 / 93
48
2.0/34
1.75/48
1.5/81
1.5/118
54
3.0* / 28*
2.0 / 43
1.5 / 72
1.5 / 104
60
2.0 / 39
1.75 / 65
1.75 / 94
66
2.5* / 35*Ab
2.0/58
1 2.0/85
72
2.0/49
2.0/78
78
2.5/42
2.5/72
84
2.75* / 35*
2.5 / 67
90
2.5 / 62
96
2.5* / 58*
102
3.0* / 52*
Notes:
1. The tables for Steel H 20 and H 25 loading are based on the NCSPA Design
Manual, 2008 and were calculated using a load factor of K=0.86. The
tables for Steel E 80 loading are based on the AREMA Manual. The tables
for Aluminum HL 93 loading are based on AASHTO LRFD Design Criteria.
2. The haunch areas of a pipe -arch are the most critical zone for backfilling.
Extra care should be taken to provide good material and compaction to a
point above the spring line.
3. E 80 minimum cover is measured from top of pipe to bottom of tie.
4. H 20, H 25 and HL 93 minimum cover is measured from top of pipe to
bottom of flexible pavement or top of rigid pavement.
5. The pipe -arch tables are based on the corner bearing pressures as shown.
These values may increase or decrease with changes in allowable corner
bearing pressures. Consider the use of a round pipe in cases where the
height of cover exceeds 8'.
6. Larger size pipe -arches may be available on special order.
7. M.L. (Heavier gage is required to prevent crimping at the haunches.)
8. For construction loads, see Page 75.
9. Sewer gage (trench conditions) tables for corrugated steel pipe can be found
in the AISI book "Modern Sewer Design," 4th Edition, 7 999. These tables
may reduce the minimum gage (GA) due to a higher flexibility factor allowed
for a trench condition.
Galvanized, ALUMINIZED STEEL Type 2 or
Polymer -Coated** Steel ULTRA FLO`Pipe-Arch H 20 and H 25 Live Load
Size
Minimum/Maximum Cover ft.
S ecified Thickness in. and Ga e
Round
Equivalent
in.
Span x Rise (in.)
(0.064)
16
(0.079)
14
(0.109)
12
18
20x16
1.0/16
21
23x19
1.0/15
24
27x21
1.0/13
30
33x26
1.0/13
1.0/13
36
40x31
1.0/13
1.0/13
42
46 x 36
M.L.'
M.L.7
1.0 / 13
48
53 x 41
M.L.'
M.L.7
1.25 / 13
54
60 x 46
M.L.'
M.L.7
1.25 / 13
60
66 x 51
M.L.7
M.L.7
1.25 / 13
Galvanized, ALUMINIZED STEEL Type 2 or
Polymer -Coated** Steel ULTRA FLO' Pipe -Arch E 80 Live Load
Size
Minimum/Maximum Cover ft.
Specified Thickness in. and Gage
Round
Equivalent
in.
Span x Rise
(in.)
(0.064)
16
(0.109)
12
18
20x 16
2.0/,
NEW -
21
23x19
2.0/,
24
27x21
2.0/18
30
33x26
2.0/18
36
40x31
2.0/17
42
46x36
2.0/18
48
53x41
2.0/18
54
60 x 46
2.0/18
60
66x51
2.0/18
Polymer -coated ULTRA FLO" provides added durability.
70. All heights of cover are based on trench conditions. If embankment conditions
exist there may be restriction on gages for the large diameters. Your Contech
Sales Representative can provide further guidance for a project in embankment
conditions.
11. All steel ULTRA FLO' is installed in accordance with ASTM A798 "Installing
Factory -Made Corrugated Steel Pipe for Sewers and Other Applications."
* These sizes and gage combinations are installed in accordance with ASTM
A796 paragraphs 18.2.3 and ASTM A798. For aluminum ULTRA FLO" refer to
ASTM B790 and B788.
** Contact your local Contech representative for more specific information on
Polymer -Coated ULTRA FLO' for 12 GA and 10 GA.
***Consult your Contech Sales Representative for E 80 Live Loads for
Aluminum ULTRA FLO®.
13

0
Aluminum ULTRA FLO* HL 93 Live Load Aluminum ULTRA FLO'' Pipe -Arch HL 93 Live Load C:)
Diameter (in.)
Minimum/Maximum Cover ft.
Specified Thickness in. and Gage
(0.060)
16
(0.075)
14
(0.105)
12
(0.135)
10
18
1.0/43
1.0/61
21
1.0/38
1.0/52
1.0/84
24
1.0/33
1.0/45
1.0173
30
1.25/26
1.25/36
1.25/58
36
1.5*/21*
1.50/30
1.5/49
1.5/69
42
1.75*/25*
1.75/41
1.75/59
48
2.0/36
2.0/51
54
2.0/32
2.0/46
60
2.0*/29*
2.0/41
66
2.0/37
72
2.5*/34*
See previous page for height of cover notes.
Size
Minimum/Maximum Cover ft.
Sl iecified Thickness in. and Gage
Round Equivalent
(in.)16
Span x Rise (in.)
(0.060)
(0.075)
14
(0.105)
12
(0.135)
10
18
20 x 16
1.0/16
21
23 x 19
1.0/15
24
27 x 21
1 .25/13
1.25/13
30
33 x 26
1.5/13
1.5/13
1.5/13
36
40 x 31
1.75/13
1.75/13
42
46 x 36
2.0/13
2.0/13
48
53 x 41
2.0/13
2.0/13
54
60 x 46
2.0*/13*
2.0/13
60
66 x 51
2.0/13
Handling Weight for ALUMINIZED STEEL Type 2 or Handling Weight for ALUMINUM ULTRA FLO*
Galvanized Steel ULTRA FLO*
Diameter (in.)
Weight Pounds/Lineal Foot
Specified Thickness in. and Gage
(0.064)
16
(0.079)
14
(0.109)
12
(0.138)
10
18
15
18
21
17
21
29
24
19
24
36
30
24
30
42
36
29
36
50
42
33
42
58
48
38
48
66
80
54
45
54
75
90
60
48
60
83
99
66
66
91
109
72
72
99
119
78
78
108 1
129
84
116
139
90
124
149
96
132
158
102
141
168
108
175
114
196
120
206
Weights for polymer -coated pipe are 7 % to 4% higher, varying by gage.
ULTRA FLO" is available in long lengths, and its light weight
allows it to be unloaded and handled with small equipment.
Diameter (in.)
Weight Pounds/Lineal Foot
Specified Thickness in. and Gage
(0.060) (0.075) (0.105) (0.135)
16 14 12 10
18bmm
5
6
21
6
8
11
24
7
9
13
30
9
11
15
36
11
13
18
23
42
15
21
26
48
24
30
54
27
34
60
30
37
66
41
72
45
Reduced excavation due to the smaller outside diameter of
ULTRA FLO®.
14

Installation of CMP
Overview
Satisfactory site preparation, trench excavation, bedding and
backfill operations are essential to develop the strength of any
flexible conduit. In order to obtain proper strength while preventing
settlement, it is necessary that the soil envelope around the pipe
be of good granular material, properly placed and carefully
compacted.
Bedding
Bedding preparation is critical to both pipe performance and service
life. The bed should be constructed to uniform line and grade to
avoid distortions that may create undesirable stresses in the pipe
and/or rapid deterioration of the roadway. The bed should be free
of rock formations, protruding stones, frozen lumps, roots and other
foreign matter that may cause unequal settlement.
Placing the pipe
Corrugated metal pipe weighs much less than other commonly used
drainage structures. This is due to the efficient strength of the metal,
further improved with carefully designed and formed corrugations.
Even the heaviest sections of Contech pipe can be handled with
relatively light equipment compared with equipment required for
much heavier reinforced concrete pipe.
Backfill
Satisfactory backfill material, proper placement and compaction
are key factors in obtaining maximum strength and stability. Backfill
should be a well -graded granular material and should be free of
large stones, frozen lumps and other debris.
Backfill materials should be placed in layers about six inches
deep, deposited alternately on opposite sides of the pipe. Each
layer should be compacted carefully. Select backfill is placed and
compacted until minimum cover height is reached, at which point,
standard road embankment backfill procedures are used.
Installation References
For more information, see AASHTO Bridge Construction
Specification Section 26, the Installation Manual of the National
Corrugated Steel Pipe Association, ASTM A798 for steel and ASTM
B788 for aluminum ULTRA FLO°.
Additional Considerations for ULTRA FLO' Installations
Bedding and Backfill
Typical ULTRA FLO° installation requirements are the same
as for any other corrugated metal pipe installed in a trench.
Bedding and backfill materials for ULTRA FLO" follow the
requirements of the CMP installation specifications mentioned
above, and must be free from stones, frozen lumps or other debris.
When ASTM A796 (steel) or B790 (aluminum) designs are to be
followed for condition III requirements, indicated by asterisk (*) in
the tables on page 13 and 14, use clean, easily compacted
granular backfill materials.
Embankment Conditions
ULTRA FLO® is a superior CMP storm sewer product that is normally
installed in a trench condition. In those unusual embankment
installation conditions, pipe sizes and gages may be restricted. Your
Contech Sales Representative can provide you with further guidance.
Construction Loads
For temporary construction vehicle loads, an extra amount of
compacted cover may be required over the top of the pipe. The
Height of Cover shall meet minimum requirements shown in the
table below. The use of heavy construction equipment necessitates
greater protection for the pipe than finished grade cover minimums
for normal highway traffic.
Temporary Cover For
Construction Loads Finished
Grade
Height of Cove --------------------------------------------
Min. Height
Diameter
(in.)
of Cover
HEL-CORD
Requirements for Construction
Corrugated Steel Pipe*
Minimum Cover (ft.) for Indicated
Axle Loads (kips)
Loads
18-50
50-75
75-110
110-150
12-42
2.0
2.5
3.0
3.0
48-72
3.0
3.0
3.5
4.0
78-120
3.0
3.5
4.0
4.0
126-144
3.5
4.0
4.5
4.5
Min. Height
Diameter
of Cover
CORLIX" Corrugated
Requirements for Construction
Aluminum Pipe*
Minimum Cover (ft.) for Indicated
Axle Loads (kips)
Loads
Min. Height
of Cover
ULTRA
Requirements for Construction
FLW Pipe*
Loads
Minimum Cover (ft.) for Indicated
Diameter
Axle Loads (kips)
(in.)
18-50
50-75 1 75-110
110-150
Steel 3/4' x 3/4" x 7-1/2'
15-42
2.0
2.5
3.0
3.0
48-72
3.0
3.0
3.5
4.0
78-108 1
3.0
3.5
4.0
4.5
Aluminum 3/4' x 3/4' x 7-1/2'
15-42
3.0
3.5 14.0
4.0
Minimum cover may vary depending on local conditions. The contractor
must provide the additional cover required to avoid damage to the pipe.
Minimum cover is measured from the top of the pipe to the top of the
maintained construction roadway surface.
15

Smooth Cor'" Pipe
Excellent Hydraulics, Long Lengths and Easy
Installation
Corrugated Steel Shell
Smooth Car pipe has a smooth interior steel liner that provides a
Manning's "n" of 0.012. Its rugged, corrugated steel shell supplies
the structural strength to outperform rigid pipe. Smooth Cor pipe is
both the economical and performance alternate to concrete.
Superior hydraulics
Smooth Cor, with its smooth interior surface, is hydraulically
superior to conventional corrugated steel pipe and with fewer joints
and better interior surface, outperforms reinforced concrete pipe.
Smooth Cor, with its long lengths, light weight and beam strength,
is superior to concrete pipe in many difficult situations such as
poor soils, poor subsurface drainage conditions, steep slopes and
high fills. Smooth Cor should be specified as an alternate under
normal site conditions, and specified exclusively under very difficult
situations that demand the strength of CSP with positive joints and
a hydraulically efficient smooth liner.
Two Pipe Shapes
In addition to full -round pipe, Smooth Cor comes in a pipe -arch
shape for limited headroom conditions. The low, wide pipe -arch
design distributes the flow area horizontally, enabling it to be
installed with lower head room than a round pipe.
Structural Design
Reference specifications
Material
Polymer -Coated
ASTM A 929
AASHTO M246
ASTM A 742
Pipe
Polymer
AASHTO M245
ASTM A 762 & A 760
Design
Steel Pipe
AASHTO Section 12
ASTM A 796
Installation
Steel Pipe
AASHTO Section 26
ASTM A 798
Smooth Cor is lined with either 18 or 20 gage (GA) steel. Contech
has taken a conservative approach to the Height of Cover. The
maximum heights of cover are based on the shell thickness with no
additional structural allowance for the liner as provided for in the
AASHTO and ASTM design specifications. Using this approach,
the Height of Cover tables for 2 2/3" x 1 /2" and 3" x 1 " steel
corrugations can be used for Smooth Cor.
Diameters
Smooth Car is available in diameters ranging from 18 inches to
66 inches in 2 2/3" x 1/2" corrugation. The 3" x 1" corrugation
is available in diameters of 48" to 126"
Pipe -arch sizes range from 21 " x 15" through 77" x 52" for 2
2/3" x 1 /2" corrugations, and 53" x 41 " through 137" x 87"
for 3" x 1 " corrugations.
Materials
Smooth Cor is available with a heavy -gage polymer coating
that allows the engineer to design for long service life. This
coating is a tough, heavy -gage polymer film laminated to both
sides of the steel coil, providing a barrier to corrosion and
mild abrasion which is particularly effective for protection in
corrosive soils.
Fittings
Smooth Cor can be fabricated into any type of structure
including tees, elbows, laterals, catch basins, manifolds and
reducers. Pre -fabricated fittings are more economical and have
superior hydraulic characteristics when compared to concrete
structures.
Lockseam
Retaining Smooth Interior Liner
Offset

QUICK STAB° Joint
Save Time and Money With Faster Pipe Bell and
Spigot Coupling
The Contech QUICK STAB Bell and Spigot joint speeds
installation of corrugated metal pipe (CMP), reducing your
costs. With the QUICK STAB coupling system, installation
of CMP storm sewers and culverts has never been easier
or faster.
The QUICK STAB joint creates a bell and spigot joining system
with the bell only 1-1/2" larger than the pipe's O.D. Assembled
at the factory, the QUICK STAB bell is shipped to the job site
ready for installation. The only field operation is placing a
special fluted gasket onto the spigot end of the pipe, applying
lubricant and pushing it into the bell end of the preceding pipe.
Without bands, bolts and wrenches to work and worry with,
you can join pipe segments 50%to 90%faster—saving time,
money and aggravation.
Soil Tight Joint
Contech's QUICK STAB joint provides the some soil tightness
as conventional CMP bands. Each QUICK STAB joint uses
a double sealing fluted gasket to seal the spigot against the
bell. A flat gasket is installed at the plant between the pipe and
the corrugated end of the bell. With the deep bell, you gain
maximum soil tightness with minimal installation effort.
Wide Variety of Coatings and Materials
• Plain galvanized
• Aluminized Steel Type 2 (ALT2)
• Aluminum
• Polymeric coated
Four Times Faster Installation Than Concrete
The QUICK STAB's bell and spigot joining system allows
pipe segments to be joined quicker than reinforced concrete
pipe. Next, add in Contech's corrugated metal pipe's length
advantage each segment is four times longer than standard
concrete pipe lengths. That means fewer joints and faster
installation —up to four times faster! Plus, with the bell only
1-1/2" larger than the pipe, trench excavation is considerably
less compared with concrete again, saving time and money.
Field Installation Instructions
The spigot and bell ends must be cleaned of any dirt or debris
prior to assembly. The fluted gasket shall be placed in the first
corrugation with the lower flute nearest the end of the pipe. The
bell & gasket shall be thoroughly lubed just before stabbing in
the bell. Do not place hands, fingers, or any other body parts
between bell and spigot during assembly. If it is necessary
to pull the joint apart, the bell, spigot and gasket shall be
inspected and cleaned of any dirt or debris prior to re -stabbing.
Corrugated Metal Pipe Bell and Spigot
Joint Specification
The joints shall be of such design and the ends of the
corrugated metal pipe sections so formed that the pipe can be
laid together to make a continuous line of pipe. The joint shall
be made from the same material as the pipe and shall prevent
infiltration of the fill material.
Bell and Spigot Coupling System for CMP
Fluted Gasket with the lower Flute Nearest to
DUICR STAB Bell \ the Pipe End
\ Z , Pipe with Rerolled End
Corrugation to Engage Pipe End — 12.5"
This Side is Sleeve Lap is Skip
Welded
The Bell and Spigot joint is available on ULTRA FLO' and
2 2/3" x 1/2" corrugation in 15" through 60" diameter.
Stab
Direction
17

End Sections
Easily installed, easily maintained culvert end
treatments for corrugated metal pipe, reinforced
concrete pipe and HDPE Pipe
Contech End Sections provide a practical, economical and
hydraulically superior method of finishing a variety of culvert
materials.
The lightweight, flexible metal construction of Contech End
Sections creates an attractive, durable and erosion -preventing
treatment for all sizes of culvert inlets and outlets. They can
be used with corrugated metal pipe having either annular or
helical corrugations, and both reinforced concrete and plastic
pipes. End sections can be salvaged when lengthening or
relocating the culvert.
Standard End Sections are fabricated from pregalvanized
steel. For added corrosion resistance, Aluminized Type 2 or
Aluminum End Sections are available in smaller sizes. Special
End Sections for multiple pipe installations may be available on
a specific inquiry basis.
Better hydraulics
Flow characteristics are greatly improved by the exacting design
of Contech End Sections. Scour and sedimentation conditions
are improved, and headwater depth can be better controlled.
Culverts aligned with the stream flow and finished with Contech
End Sections generally require no additional hydraulic controls.
Improved appearance
Contech End Sections blend well with the surroundings. The
tapered sides of an End Section merge with slope design to
improve roadside appearance. Unsightly weeds and debris
collection at the culvert end are reduced.
Economical installation
Lightweight equipment and simple crew instructions result
in smooth and easy installation. Contech End Sections are
easily joined to culvert barrels, forming a continuous, one-
piece structure. For easiest installation, End Sections should
be installed at the same time as the culvert. Installation is
completed by tamping soil around the End Section.
Low maintenance
Contech End Sections reduce maintenance expense because
their tapered design promotes easier mowing and snow
removal. There is no obstruction to hamper weed cutting.
- Va_riable Slope
I1
Typical (ross Section
Reinforced Edge
r...=.:-------- - H
2" a"
Optional Toe
Elevation
Plate Extension
Reinforced Edge
rH
2"
S" Optional Toe
Elevation Plate Extension
Plan
Notes for all End sections:
1 . All three-piece bodies to have 12 GA sides and 10 GA center panels. Multiple
panel bodies to have lap seams which are to be tightly joined by galvanized
rivets or bolts.
2. For 60" through 84" sizes, reinforced edges are supplemented with stiffener
angles. The angles are attached by galvanized nuts and bolts. For the 66" and
72" round equivalent pipe -arch sizes, reinforced edges are supplemented by
angles. The angles are attached by galvanized nuts and bolts.
3. Angle reinforcements are placed under the center panel seams on the 66" and
72" round equivalent pipe -arch sizes.
4. Toe plate is available as an accessory, when specified on the order, and will be
same gage (GA) as the End Section.
5. Stiffener angles, angle reinforcement, and toe plates are the same base metal
as end section body.
6. End sections with 6:1 and 4:1 slopes are available in 12"
through 24" diameters.
7. Actual dimensions may vary slightly.
8. During manufacturing, a slight invert slope may result along the length of the
end section to be accommodated in the field.

Approximate Dimensions, Inches (1)
Pipe
Diameter
Gage
A
(+/-1")
B
(Max)
H L
(Min) (+/-2")
W
(+/- 2")
Overall Width
(+/- 4")
12
16
6
6
6
21
24
36
15
16
7
8
6
26
30
44
18
16
8
10
6
31
36
52
21 01
16
9
1
60
24
16
10
13
—Mm42
6
41
48
68
30
14
12
16
8
51
60
84
36
14
14
19
9
60
72
100
42
12
16
22
11
69
84
116
48
12
18
27
12
78
90
126
54
12
18
30
12
84
102
138
60
12/10
18
33
12
87
114
150
66
12/10
18
36
12
87
120
156
72
12/10
18
39
12
87
126
162
78
12/10
18
42
12
87
132
168
84
12/10
18
45
12
87
138
174
End Sections for Pipe -Arch (2-2/3" x 1/2")
Approximate Dimensions, Inches M
Round
Equivalent
Span x Rise
(in.)
Gage
A
(+/-1")
B
(Max)
H
(+/-1 ")
L
(+/- 2")
W
(+/- 2")
Overall Width
(+/- 4")
15
17 x 13
16
7
9
6
19
30
44
18
21 x 15
16
7
10
6
23
36
50
21
24 x 18
16
8
12
6
28
42
58
24
28 x 20
16
9
14
6
32
48
66
30
35 x 24
14
10
16
6
39
60
80
36
42 x 29
14
12
18
8
46
75
99
42
49 x 33
12
13
21
9
53
85
ill
48
57 x 38
12
18
26
12
63
90
126
54
64x43
12
18
30
12
70
102
138
60
71x47
12/10
18
33
12
77
114
150
66
77x52
12/10
18
36
12
77
126
162
72
83x57
12/10
18
39
12
77
138
174
Approximate Dimensions, Inches (1)
Round
Equivalent
Span x Rise
(in.)
Gage
A
(+/-1")
B
(Max)
H
(+/-1 ")
W
(+/- 2")
L
(+/- 2")
Overall Width
(+/- 4")
48
53 x 41
12
18
25
12
90
63
126
54
60x46
12
18
34
12
102
70
138
60
66x51
12/10
18
33
12
116
77
152
66
73x55
12/10
18
36
12
126
77
162
72
81x59
12/10
18
39
12
138
77
174
78
87x63
12/10
20
38
12
148
77
188
84
95x67
12/10
20
34
12
162
87
202
90
103x71
12/10
20
38
12
174
87
214
96
112x75
12/10
20
40
12
174
87
214
Ce

Contech End Sections attach to corrugated metal pipe, reinforced concrete and plastic pipe.
End Of Pipe
type I
1/2' Th
Rod
Type 2
Pipe To Which End
Section Is Attached
0 0 D ❑ Dimple Band
Jaded ,, Collar Bolted To
End Section With
3/8" Bolts
Type 5
Note: The Type 3 connection is not illustrated. This connection is a one -foot length of pipe attached to the end section.
Multiple End Section on Round (SP
End Sections are available for (SP
Pipe -Arch
='
(ontech End Sections are often used on
concrete pipe. They can be used on both
the bell and spigot end.
Contech® Engineered Solutions provides innovative, cost-effective site solutions to engineers, contractors
and developers on projects across North America. Our portfolio includes bridges, drainage, erosion control,
retaining wall, sanitary sewer and stormwater management products.
For more information, call one of Contech's Regional Offices located in the following cities:
Ohio (Corporate Office) 513-645-7000
California (Roseville) 800-548-4667
Colorado (Denver) 720-587-2700
Florida (Orlando) 321-348-3520
Maine (Scarborough) 207-885-9830
Maryland (Baltimore) 410-740-8490
Oregon (Portland) 503-258-3180
Texas (Dallas) 972-590-2000
www.ContechES.com 1 800-338-1122
NOTHING IN THIS CATALOG SHOULD BE CONSTRUED AS A WARRANTY. APPLICATIONS SUGGESTED HEREIN
ARE DESCRIBED ONLY TO HELP READERS MAKE THEIR OWN EVALUATIONS AND DECISIONS, AND ARE NEITHER
GUARANTEES NOR WARRANTIES OF SUITABILITY FOR ANY APPLICATION. CONTECH MAKES NO WARRANTY
WHATSOEVER, EXPRESS OR IMPLIED, RELATED TO THE APPLICATIONS, MATERIALS, COATINGS, OR PRODUCTS
DISCUSSED HEREIN. ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND ALL IMPLIED WARRANTIES OF
FITNESS FOR ANY PARTICULAR PURPOSE ARE DISCLAIMED BY CONTECH. SEE CONTECH'S CONDITIONS OF
SALE (AVAILABLE AT WWW.CONTECHES.COM/COS) FOR MORE INFORMATION.
M1
BRO-CMP-DESIGN 5/3/2022
Low -slope End Sections—Contech manufactures 4:1 and
6:1 low -slope End Sections for corrugated metal pipe.
This photo shows the optional field -attached safety bars.
C=4 NTECHp
ENGINEERED SOLUTIONS
© 2022 Contech Engineered Solutions L-C, a QUIKRETE Company
All rights reserved. Printed in USA.