Notice of Availability of the Draft Supplemental Environmental Impact Statement (DSEIS) for the Nourishment of 25,000 Feet of Beach in Topsail Beach, Pender County, NC, 43435-43438 [E8-17079]

Agencies

• DEPARTMENT OF DEFENSE
• Department of the Army, Corps of Engineers
• Department of the Army; Corps of Engineers

[Federal Register Volume 73, Number 144 (Friday, July 25, 2008)]
[Notices]
[Pages 43435-43438]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E8-17079]


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DEPARTMENT OF DEFENSE

Department of the Army; Corps of Engineers


Notice of Availability of the Draft Supplemental Environmental 
Impact Statement (DSEIS) for the Nourishment of 25,000 Feet of Beach in 
Topsail Beach, Pender County, NC

AGENCY: Department of the Army, U.S. Army Corps of Engineers, DoD.

ACTION: Notice of availability.

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SUMMARY: The U.S. Army Corps of Engineers (USACE), Wilmington District, 
Wilmington Regulatory Field Office has received a request for 
Department of the Army authorization, pursuant to Section 404 of the 
Clean Water Act and Section 10 of the Rivers and Harbors Act, from the 
Town of Topsail Beach to conduct a one-time interim beach fill project 
to protect oceanfront development and infrastructure until such time 
that a federally authorized shore protection project can be 
implemented. While federal budget priorities have made it difficult to 
obtain funds for civil works projects in general and beach protection 
projects in particular, the projected earliest construction date for 
the federal project is 2012. A Draft General Reevaluation Report--
Environmental Impact Statement (GRR-EIS) has been prepared by the USACE 
and was released for public review and comment in June 2006 (USACE, 
2006). Given the current status of the GRR-EIS and the need for 
Congressional authorization, funding, preparation of plans and 
specifications, and right-of-way acquisition, the federal project may 
not be implemented until Fiscal Year 2012, or possibly later. 
Accordingly, the Town would like to construct an interim project to 
protect its development and infrastructure during the period between 
now and the time the federal project is constructed. In order to 
account for any possible delays in the construction of the federal 
project, a construction date of 2016 was used in the development of the 
alternatives and economic analysis for the interim project. This would 
maintain the baseline conditions described in the Draft GRR and EIS.

ADDRESSES: Copies of comments and questions regarding the DSEIS may be 
addressed to: U.S. Army Corps of Engineers, Wilmington District, 
Regulatory Division. ATTN: File Number SAW-2006-40848-071, Post Office 
Box 1890, Wilmington, NC 28402-1890.

[[Page 43436]]


FOR FURTHER INFORMATION CONTACT: Questions about the proposed action 
and DSEIS can be directed to Mr. Dave Timpy, Wilmington Regulatory 
Field Office, telephone: (910) 251-4634.

SUPPLEMENTARY INFORMATION:
    1. Project Description. The fill placement area will occur between 
Godwin Avenue on the south to a point 2,000 feet northeast of Topsail 
Beach/Surf City town limits, a total ocean shoreline length of 
approximately 25,000 feet. The fill would consist of three sections, a 
1,000-foot transition on the south beginning at a point opposite Godwin 
Avenue, a 22,000-foot main fill section that would extend to the 
Topsail Beach/Surf City town limits, and a 2,000-foot northern 
transition (Figure 1). The beach fill would have a variable width berm 
constructed to an elevation of +6.0 feet NAVD. The volume of material 
for the emergency project is based on providing erosion protection 
until such time a federal storm damage reduction project is 
implemented.
[GRAPHIC] [TIFF OMITTED] TN25JY08.013


[[Page 43437]]


The volume of beach fill material could range from a minimal amount 
needed to counter long-term erosion losses during the interim period 
(approximately 5 years) to a maximum amount that would include a 
contingency volume to account for possible storm related erosion losses 
during the time period. The material to construct the emergency project 
would be derived from an offshore borrow site or a combination of 
borrow sites. The potential borrow sites include a portion of Borrow 
Area A (Borrow Area A1) identified by the USACE in the Draft GRR/EIS 
with the area considered for the emergency project shown in Figure 1. 
Borrow Area A1 contains a total volume of approximately 2.0 million cy. 
The second potential borrow area, designated as Borrow Area X in Figure 
1, was developed specifically for the interim project and lies offshore 
of New Topsail Inlet outside the areas investigated by the USACE. 
Borrow Area X also contains approximately 2.0 million cy. Borrow Area B 
(Figure 1) is considered as a possible source for the interim project, 
however the volume of material available in Borrow Area B is an 
estimated total volume of 820,000 gross cy with an overfill factor of 
1.23 resulting in a potential net volume of suitable beach fill 
material of 660,000 cy. The superposition of the 500 m buffer around 
the probable hardbottom areas located close to Borrow Area B eliminated 
approximately 54% of the area. The remaining area of Borrow Area B 
lying outside the 500 m buffer contains approximately 230,000 cy of 
relatively fine grained material (0.19 mm mean grain size) in a shallow 
deposit (2 to 3 ft). The shallow nature of the deposit in Borrow Area B 
would not render it economical to dredge with a cutterhead pipeline 
dredge. Ultimately, the small volume of material that could reasonably 
be obtained from Borrow Area B compared to the increase in potential 
environmental resources associated with the placement of pipeline 
around probable hardbottom or use of a hopper dredge resulted in its 
elimination as a viable borrow source for the Topsail Beach Interim 
Beach Fill Project. In addition to the borrow areas discussed above, 
the USACE identifies an additional five (5) offshore borrow areas in 
Section 7.04 of the Draft GRR/EIS (USACE, 2006). These offshore borrow 
areas, Borrow Areas A, C, D, E, and F, lie seaward of the 3-mile state 
territorial limit and would require permits from the U.S. Minerals 
Management Service (MMS). Usage of the USACE offshore borrow areas 
located beyond the 4.8 km (3 mi) state territorial limit would not meet 
the purpose and need of the project. In particular, the acquisition and 
utilization of beach compatible material for shore protection project 
no later than March 31, 2009.
    A possible fourth source of borrow material, Banks Channel located 
behind Topsail Beach, was considered a potential alternative however it 
has not been evaluated in detail due to the small volume of material 
that could be removed from within the limits of the authorized 
navigation channel. A recent maintenance operation in Banks Channel and 
Old Topsail Creek, completed in fall 2007, removed approximately 
160,000 cy of shoal material and deposited the material along 4,000 
feet of shoreline extending north of the Sea Vista Hotel/Condominium. 
This operation further reduced the quantity of material that could be 
used for the interim project that would be available from the existing 
navigation channels. Upland borrow sources are not an economical option 
for the emergency project. Cost estimates for truck haul material from 
upland borrow areas located near the Town of Wallace, NC determined the 
unit cost for the material was non-competitive. Accordingly, upland 
borrow sources were not evaluated in detail for the proposed emergency 
project.
    Beach fill alternatives evaluated in detail for the interim project 
are listed below and include constructing the project using Borrow Area 
A1, Borrow Area X, or a combination of Borrow Areas X and A1. For the 
combined use of Borrow Areas X and A1, only the two seaward most dredge 
cuts of Borrow Area X would be used. This particular portion of Borrow 
Area X contains an estimated 784,000 cy of material. The Applicant's 
Preferred Alternative includes the use of Borrow Area X which contains 
an estimated 2.0 million cy of material. Two dredging methods were also 
evaluated; ocean certified cutter-suction pipeline dredge (pipeline 
dredge) and hopper dredge using direct pumpout (hopper dredge).
    The naming convention for the various beach fill alternatives is as 
follows:

Alternative 3a: Borrow Area A1 with pipeline dredge.
Alternative 3b: Borrow Area X with pipeline dredge.
Alternative 3c: Borrow Areas X and A1 with pipeline dredge.
Alternative 3d: Borrow Area A1 with hopper dredge.
Alternative 3e: Borrow Area X with hopper dredge.
Alternative 3f: Borrow Areas X and A1 with hopper dredge.

    Based on the goals, needs and objectives of the emergency project, 
Alternative 3b is the Applicant's Preferred Alternative. The proposed 
construction timeframe for the interim beach fill activities will occur 
in early calendar year 2009.
    Beach Fill Surveys & Design. Typical cross-sections of the beach 
along the Topsail Beach project area will be surveyed. Nearshore 
profiles will extend seaward to at least the -30-foot NAVD depth 
contour. The total volume of beach fill to be placed in front of the 
existing development and infrastructure will be based on an evaluation 
of erosion of the project area from 2002 through the expected 
construction date of the Federal project. Additional offshore and 
inshore data for Lea/Hutaff Island were also obtained along the 
northern 5,000 feet of the island. This data was used in the evaluation 
of possible impacts associated with the removal of sediment from the 
selected offshore borrow area and for future impact evaluations 
following project implementation through the use of numerical modeling.
    Geotechnical Investigations. The offshore sand search 
investigations have included bathymetric surveys, sidescan sonar 
surveys, seismic surveys, cultural resource surveys, vibracore 
collection and analysis, and ground-truth diver surveys to verify 
existence or non-existence of hard bottoms. The results of the offshore 
investigations coupled with the compatibility of the sand resource area 
and native beach sand were assessed to define the borrow area. All 
sediment compatibility assessments were based on State of North 
Carolina sediment compatibility standards that went into effect in 
February 2007.
    Environmental Resource Coordination & Permitting. The USACE 
prepared a General Reevaluation Report--Environmental Impact Statement 
(GRR-EIS) for the larger federal shore protection project (June 2006). 
The next step for the West Onslow Project is for the USACE to release 
the Final GRR and EIS for public and agency review and comment in 
summer 2008. The interim beach fill project will be subject to Section 
10 of the Rivers and Harbors Act, Section 404 of the Clean Water Act 
and the North Carolina Environmental Policy Act (NCEPA).
    Preliminary coordination with the USACE-Wilmington District 
resulted in a determination that a Department of the Army Application 
for an Individual Permit will be needed for project compliance with 
Sections 10 and 404.

[[Page 43438]]

Similarly, coordination with the North Carolina Division of Coastal 
Management (NCDCM) determined that the project would require a State 
EIS developed in accordance with NCEPA; as well as a Major Permit under 
the Coastal Area Management Act.
    2. Proposed Action. The scope of activities for the proposed 
interim beach fill project included: (a) Vibracores in the identified 
borrow area, (b) side scan sonar surveys of the ocean bottom, (c) in-
water investigations of potential near shore hardbottom resources 
identified by the side scan sonar survey, and (d) beach profile 
surveys. Offshore investigations included bathymetric surveys, sidescan 
sonar surveys, seismic and cultural resource surveys, as well as 
vibracore collection and analysis. The results of the offshore 
investigations coupled with the compatibility of the sand resource area 
and native beach sand were assessed to define the borrow area.
    3. Issues. There are several potential environmental issues that 
are addressed in the DSEIS. Additional issues may be identified during 
the public review process. Issues initially identified as potentially 
significant include:
    a. Potential impact to marine biological resources (benthic 
organisms, passageway for fish and other marine life) and Essential 
Fish Habitat, particularly hardbottoms.
    b. Potential impact to threatened and endangered marine mammals, 
birds, fish, and plants.
    c. Potential impacts to water quality.
    d. Potential increase in erosion rates to adjacent beaches.
    e. Potential impacts to navigation, commercial and recreational.
    f. Potential impacts to private and public property.
    g. Potential impacts on public health and safety.
    h. Potential impacts to recreational and commercial fishing.
    i. The compatibility of the material for nourishment.
    j. Potential economic impacts.
    4. Alternatives. Several alternatives are being considered for the 
proposed project. These alternatives were further formulated and 
developed during the scoping process and an appropriate range of 
alternatives, including the No Action and Non Structural alternative, 
are considered in the Draft Supplemental EIS.
    5. Scoping Process. Project Delivery Team meetings were held to 
receive comments and assess concerns regarding the appropriate scope 
and preparation of the DSEIS. Federal, state, and local agencies and 
other interested organizations and persons participated in these 
Project Delivery Team meetings.
    The COE is also consulting with the U.S. Fish and Wildlife Service 
under the Endangered Species Act and the Fish and Wildlife Coordination 
Act, and with the National Marine Fisheries Service under the Magnuson-
Stevens Act and Endangered Species Act. Additionally, the Draft 
Supplemental EIS has assessed the potential water quality impacts 
pursuant to Section 401 of the Clean Water Act, and is being 
coordinated with NCDCM to determine the projects consistency with the 
Coastal Zone Management Act. The USACE will closely work with NCDCM 
through the DSEIS to ensure the process complies with all North 
Carolina Environmental Policy Act (NCEPA) requirements. It is the USACE 
and NCDCM's intentions to consolidate both NEPA and NCEPA processes to 
eliminate duplications.
    6. Availability of the Draft Supplemental EIS. The DSEIS has been 
published and circulated, and a public hearing will be held August 26, 
2008 at the Historical Society Assembly Building, 720 Channel Blvd., 
Topsail Beach, NC at 6 p.m.

Brenda S. Bowen,
Army Federal Register Liaison Officer.
[FR Doc. E8-17079 Filed 7-24-08; 8:45 am]
BILLING CODE 3710-GN-P