20231071 Ver 1_Support doc and figs POD6 70237121_20230731

City of New Bern POD6 NWP Permitting
Install/Construct Transmission Line Switches and Permanent Gravel Access Route
Duke Energy Progress, LLC
7/2023
Terracon #70237121
Proiect Summarv:
The project is to install 2 transmission line switches (SW 130-2 and SW 132-1) along with
gravel switch pads and a permanent gravel access route (that ties to an existing gravel access
road) to provide all-weather access to these switch locations for necessary operations. This
project/permit review area is located within a project area previously assessed for the
Havelock 23kV Relocation Project. A natural/cultural resource assessment, pedestrian species
specific threatened and endangered species surveys, and a PJD (SAW-2021-00630 approved
8/2021) was completed for this project. Information from the previous studies were used to
develop this supporting documentation.
As part of the project to install these switches four (4) new transmission H-frames will be
installed; STR PT 130-1, SW 130-2, STR 132, and STR SW 132-1, two (2) existing
transmission H-frames will be replaced; STR 130 and STR 131, one (1) existing transmission
H-frame structure will be removed EX STR 132, and six (6) existing single wooded distribution
line poles will be removed (EX POLE 7-12). Two separate locations to install underground
electrical conduits will be completed via directional drilling. One directional drill install will be
between STR PT 130-1 and SW 130-2, and the other under the proposed permanent access
road for a distribution. To provide all-weather access to both switch locations (SW 130-2 and
SW 132-1) a 12-foot-wide permanent gravel access route and permanent gravel switch pads
(one switch pad 46'x40' for each switch location) will be constructed. The permanent gravel
access route will tie to an existing gravel access road that connects to County Line Road.
Temporary wetland work pads (around structures and poles in wetland areas) and temporary
construction access route (within the existing ROW easement) will also be needed for this
project. Please see site plan attached for detailed drawings for the proposed project.
• The construction of the 12-foot-wide permanent gravel access route (geotextile/gravel
road) and two (2) gravel switch pads will necessitate the proposed 0.23-
acre/10,092saft of permanent wetland impact within the existing maintained powerline
ROW.
These proposed permanent wetland impacts are to provide all-weather/storm response access
necessary to provide reliable electrical services and operational line maintenance solutions for
this Duke transmission line and service areas. The length and width of the proposed
permanent gravel access route has been designed to minimize adverse effects on WOTUS and
will be constructed as near as possible to pre -construction contours in efforts to maintain
surface flows.
Temporary wetland impacts are also proposed as part of this project. Structure and pole
replacement/removal will be performed with equipment appropriate for site conditions.
Equipment will access the power line ROW from the exiting gravel access road connecting to
County Line Road. Float track (low ground pressure equipment) and matting maybe used to
facilitate construction. Wetland areas may be temporarily matted with commercially made

composite or heavy-duty timber/crane mats, where necessary in the ROW to allow for
equipment access and to provide wetland work pads. Pole/H-frame structures are to be
installed via vibratory caissons and placed in the soil to desired project depth. As proposed,
there will be no changes to existing contours, no discharge of fill material, no addition of
impervious surfaces within wetlands to facilitate these efforts. All matting will be removed
once construction is complete. With the herbaceous root bed retained the existing vegetation
will grow within the temporary access path and wetland work pads. Matting will be
adjusted/blocked (with additional mats and transitions) where necessary to accommodate
existing contours and provide access and construction work pads.
• The proposed temporary wetland impacts associated with this project totals
approximately 1.85-acres/80,416saft; 0.62-acre/27,048sgft for wetland work pads
and 1.23-acre/53,368sgft for access route matting.
This project includes both temporary and permanent wetland impacts. Avoidance and
minimization measures have been implemented to the extent practicable to reduce the
potential for individual or cumulative adverse environmental effects. The project was
designed in efforts to limit environmental effects. The compensatory mitigation necessary for
the proposed permanent wetland impacts, within the existing maintained powerline ROW, is
at the discretion of the district engineer. In the event some other environmentally appropriate
form of mitigation is not determined, a one -for -one ratio will be used to mitigate for the
proposed 0.23-acre permanent wetland impacts. A commercial mitigation banker (Brices
Creek Wetland Mitigation Bank) was contacted to determine that credits are available in the
service area for this project.
Threatened and Endangered Species
A NCNHP database query was generated in July 2023 to determine if any federally listed
species have been documented inside of or within 1.0 mile of the permit review study area.
Red -cockaded woodpecker (RCW) was identified within a one -mile radius of the study area
(last observed 2021). Habitat for RCW does not exist within the existing transmission line
ROW/permit review area for the City of New Bern POD6 project.
Terracon Consultants Inc completed pedestrian species specific Threatened and Endangered
Species surveys for the Havelock 23kV Feeder Relocation project on 6/29-30/2021. These
surveys were for the following species: rough -leaved loosestrife and cursory surveys for some
of USFS species of concern (PETS); Leconte's Thistle and spring -flowering goldenrod on USFS
properties. The potential habitat surveyed was based on descriptions and guidance from the
U.S. Fish and Wildlife Service (USFWS) for each species. Potential habitat within the study
area consisted of wet powerline ROW, adjacent roadside ditches, and other wetland areas
within the study area. The surveys for rough -leaved loosestrife were conducted during the
optimal survey window for this species, mid -May through September. None of these species
were observed during these surveys. A search of North Carolina Natural Heritage Program
(NHP) database indicated no occurrences of the Federally listed species (rough -leaved
loosestrife) have been documented within 1.0 mile of the study area. Leconte's Thistle was
reported in the NHP search as occurring within 1.0-mile of the study area.
No listed plant species were observed in the City of New Bern POD6 permit review
area during the previously performed species specific surveys.
Cultural Resources (for the Havelock 23kV Relocation Proiect)

Archaeological Sites
Research conducted by the North Carolina Office of State Archaeology (OSA) on March 10,
2021 indicated that one previously recorded archaeological site has been recorded directly
within the project study corridor. Archaeological site 31CV90 was recorded in 1976 during a
survey of transmission corridors in the area and is located within the existing transmission
corridor. The prehistoric scatter of Woodland period ceramics was recommended Not Eligible
for the National Register of Historic Places (NRHP).
Archaeological site 31CV90 is located over 4,900-feet northwest of the permit
review area for the City of New Bern POD6 project. No archaeological sites were
recorded in the permit review area.
Historic Structures
Research conducted using the North Carolina State Historic Preservation Office (SHPO)
HPOWEB GIS service database on March 8, 2021 revealed no previously recorded historic
properties are located in or within 0.25-mile of the permit review study area. As the proposed
transmission work is located within the existing Right of Way and is not likely to result in
additional visual disturbances, no adverse effect is anticipated to historic resources.

Duke Energy Progress -City of New Bern POD 6
Craven County
70237121
Table of Contents
Figures........................................................5-6
Site Plan Drawings......................................7-8
Agent Authorization Form ...........................9

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USACEINCDWR Agent Authorization Form
Property/Site: Duke EnerqV Progress, LLC
Address of Site: Duke Energy transmission line ROW easement
South of County Line Road in Craven County
34.99931,-77.05424
Parcel Identification Number (PIN):
Owner Information:
Name: Duke Energy Progress, LLC c/o Nuwan Wijesuriya
Address: 411 Fayetteville Street
Raleigh, NC 27601
Telephone Number: [phone]
E-mail Address: [e-mail]
Property Owner Certification:
I, the undersigned, a duly authorized owner of record of the property/properties identified herein,
do authorize representatives of the Wilmington District, U.S. Army Corps of Engineers (Corps)
and/ or the North Carolina Division of Water Resources (NCDWR) to enter upon the property
herein described for the purpose of conducting on -site investigations and issuing a determination
associated with Waters of the U.S (WOTUS) subject to Federal/State jurisdiction under Section
404 and 401 of the Clean Water Act andlor Section 10 of the Rivers and Harbors Act of 1899.
Terracon, as designated by the current property owner, is the authorized consultant to coordinate,
schedule, and provide supplemental information to both agencies in support of this verification
and/or permit application.
Property Owner Signature:
Date: 7/ 2- 3 /2 0 2-
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