HomeMy WebLinkAbout20020158 Ver 3_Tab D - Project Narrative Revised-082820_20201002Town of Sunset Beach Navigation Project
Maintenance Dredging of South Jinks Creek, the Bay Area, & the Feeder Channel
Nearshore Placement Narrative
INTRODUCTION
The Town of Sunset Beach (Town) intends to modify the existing CAMA Permit 79-19 to allow nearshore
placement of beach compatible material dredged from south Jinks Creek. The modification request stems
from the Town's attempts to maintain compliance with the North Carolina General Statutes and avoid
property rights issues with beach front property owners. Permit 79-19 allows navigational dredging in the
water bodies known as south Jinks Creek, the Bay Area, and the Feeder Channel system within the Town
of Sunset Beach. Sunset Beach lies in Brunswick County, along the southern coastal border of North
Carolina, adjacent to Ocean Isle Beach. The proposed navigational dredging will occur along the eastern
border of Sunset Beach, within the interior waters of Tubbs Inlet. Figure 1 shows the proposed project area
in relation to Brunswick County.
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Figure 1. Project Vicinity Map
South Jinks Creek comprises a portion of the Jinks Creek connector channel that extends from the Atlantic
Intracoastal Waterway (AIWW) to Tubbs Inlet and the Atlantic Ocean. The navigation project in south
Jinks Creek will also include the Bay Area and Feeder Channel system positioned in the east portion of
Sunset Beach. However, only south Jinks Creek contains beach compatible material. Therefore, this
modification request does not alter any portion of the project as permitted for the Bay Area, which includes
1 residential canal, or the Feeder Channel system, which includes one (1) main channel connected to four
(4) residential finger canals referenced as Canals A — D. In addition, the modification only proposes to
change the material placement location for the south Jinks Creek portion of the navigation project. The
modification does not propose to change any aspect of the proposed dredging in south Jinks Creek. This
modification only requests to change the material placement site for the beach compatible material
dredged from south Jinks Creek from the beach front between 5th and 12th Street on Sunset Beach
(originally authorized), to the nearshore zone between 3" and 13th Street.
An estimated 40,500 cubic yards (CY) of beach compatible material will be dredged from south Jinks
Creek. The beach compatible material will be hydraulically placed as beneficial reuse in the nearshore
along approximately 2,000-ft of shoreline seaward of 3' Street to 13t' Street on Sunset Beach. The
Town of Sunset Beach Navigation Project
Maintenance Dredging of South Jinks Creek, the Bay Area & Feeder Channel
Nearshore Placement Narrative Page 12
beneficial reuse material will be placed in an approximate 200-ft wide template in water depths ranging
between approximately -9-ft to -13-ft MLW. The final grade for the placed material will not exceed -6.0-ft
MLW in height. Figure 2 shows the work area and estimated dredge volume for the south Jinks Creek
maintenance dredging project Tab E (Permit Drawings) shows scaled drawings of the work area.
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Figure 2. South Jinks Creek Work Area
MODIFICATION BACKGROUND
Tab F (Previous Permits) provides Permit 79-19, which authorizes beach placement of the south Jinks Creek
material. The Town originally intended to place the beach compatible material along the beachfront
between 5' and 12' Street on Sunset Beach. However, due to property rights concerns, the Town does not
feel beach placement provides a feasible alternative. Specifically, residents were unwilling to risk how the
state may enforce NCGS 146-6 (d), which states "...the title to land in or immediately along the Atlantic
Ocean raised above the mean high water mark by publicly financed projects which involve hydraulic
dredging or other deposition of spoil materials or sand vests in the State. " Since state grants would help
finance this project, upland property owners felt they would lose the designation of "beach front" ownership
if they allowed material placement on their property. As a result, the property owners refused to provide
the temporary construction easements necessary to allow equipment and personnel on their property to
complete the work.
Town of Sunset Beach Navigation Project
Maintenance Dredging of South Jinks Creek, the Bay Area & Feeder Channel
Nearshore Placement Narrative Page 13
The referenced NCGS does not apply for projects that do not receive public funding. However, public
assistance on this project equals 2/3" of the overall costs, including engineering, construction, and
monitoring. For the construction cost to dredge south Jinks Creek alone, the grant funding is estimated at
approximately $570,000, and that excludes the engineering and monitoring costs.
The Town also considered transporting the beach sand from south Jinks Creek to an adjacent beach, such
as the eastern end of Ocean Isle Beach, or Oak Island. However, DCM determined that these options would
violate NCGS 113-229 and therefore could not be allowed. For reference, NCGS 113-229 (hl) & (h2) state
"...dredgings of beach -quality sand may be placed on the affected downdrift ocean beaches or, if placed
elsewhere, an equivalent quality and quantity of sand from another location shall be placed on the
downdrift ocean beaches. Clean, beach quality material dredged from navigational channels within the
active nearshore, beach or inlet shoal systems shall not be removed permanently from the active nearshore,
beach or inlet shoal system. This dredged material shall be disposed of on the ocean beach or shallow
active nearshore area where it is environmentally acceptable and compatible with other uses of the beach ".
Several conversations and interpretations have been offered towards implementation of the referenced
NCGS. Therefore, to ensure evaluation of the appropriate actions or alternatives, the Town requested a
legal interpretation of the referenced NCGS. The North Carolina Division of Coastal Management (DCM)
provided the following legal interpretation:
"The language in the NC Dredge and Fill Law at 113-229(h2) is very clear that: "Clean, beach quality
material dredged from navigational channels within the active nearshore, beach or inlet shoal systems shall
not be removed permanently from the active nearshore, beach or inlet shoal system. This dredged material
shall be disposed of on the ocean beach or shallow active nearshore area where it is environmentally
acceptable and compatible with other uses of the beach. "
We do not interpret subsection (hl) to be allow flexibility with respect to the mandate in (h2). However, as
we have previously suggested, we may be able to allow temporary storage of the beach -compatible sand
on high ground until it can be beneficially placed on an eroding beach or nearshore area in the same inlet
system. Because the D&F language says "the " active nearshore, beach or inlet shoal system, we interpret
this to mean that the sand must stay in the system where the dredging is occurring".'
Therefore, the beach compatible material must be maintained in the Tubbs Inlet littoral complex to provide
consistency with the NCGS. The NCGS does allow for the temporary stockpiling of the beach compatible
material in an upland facility. However, the material must be maintained and eventually returned to the
Tubbs Inlet littoral complex. As a result, the Town abandoned the alternative for beach placement because
(1) it could not be constructed based on the unwillingness for beach front owners within the Tubbs Inlet
littoral zone to grant construction access to their property, (2) the option to place the beach material outside
of the Tubbs Inlet littoral zone is not allowable under State Law, and (3) stockpiling the beach sand in an
upland facility would only delay the action of placing the material along the beach or nearshore while
increasing the project cost significantly.
NEARSHORE PLACEMENT REASONING
Although nearshore placement is not a widely used option for non-federal stakeholders, the alternative
provides a beneficial reuse option for placement of the beach material from south Jinks Creek. Nearshore
placement also provides an environmentally acceptable and least cost alternative that meets the purpose
'Davis, B. (2020). Sunset Beach— Jinks Creek Question. Personal email: Braxton.DavisaNCDENR.aov (01-June02O2O)
Town of Sunset Beach Navigation Project
Maintenance Dredging of South Jinks Creek, the Bay Area & Feeder Channel
Nearshore Placement Narrative Page 14
and need of the project. The Town evaluated nearshore placement as a last resort for balancing the property
owner concerns with beach placement and maintaining consistency with NCGS 113-229.
In regards to federal initiatives, the USACE Wilmington District conducts nearshore placement of beach
compatible material at nearby Lockwoods Folly Inlet and Carolina Beach Inlet. The USACE implements
nearshore placement as presumably the most effective available option for maintaining the navigable
channels of the referenced inlets. Figure 3 shows the location of Lockwoods Folly Inlet in relation to Sunset
Beach. Lockwoods Folly Inlet lies between Oak Island to the east, and Holden Beach to the west. Other
sites in North Carolina where nearshore placement routinely occurs under federal authority include
Morehead City Harbor, Oregon Inlet, and Hatteras Inlet.
In efforts to identify the most beneficial location for the nearshore placement, the Town of Sunset Beach
evaluated recent hurricane impacts. The Town experienced noticeable erosion impacts in the beach and
dune system along their central shoreline region extending between 3' Street and 13' Street on Sunset
Beach. Although the Town did not document the beach and shoreline impacts, data obtained from the DCM
corroborates the general consensus of erosion concerns in the area of 3' through 131}i Streets. Figure 4
shows long-term erosion rates calculated by DCM for the Sunset Beach shoreline. The DCM calculated
rates show the shoreline between 3' Street and 151}i Street experienced a landward shoreline recession
between 1981 and 2016. Although the recession rate experienced seems minimal, the data shows the
shoreline between 3' Street and 15t' Street as the most susceptible to erosion forces. Therefore, the Town
elected to place the nearshore material seaward of this shoreline in efforts of providing a secondary benefit
from the navigation project. The placement of beach -compatible sand placed in the nearshore will add to
the sediment supply in the active profile and increase the protection level afforded against wave and current
driven shoreline erosion.
Figure 3. Lockwoods Folly Inlet Location in Relation to Sunset Beach
Town of Sunset Beach Navigation Project
Maintenance Dredging of South Jinks Creek, the Bay Area & Feeder Channel
Nearshore Placement Narrative Page 15
Figure 4. DCM Shoreline Migration Rates for the East End of Sunset Beach (1981-2016)2
Figure 5 shows the nearshore placement area in relation to the Sunset Beach shoreline and Tubbs Inlet. The
placement area initiates approximately 6,000-ft west of Tubbs Inlet and 600-ft offshore of the MHW
contour. The placement site lies in the nearshore region between 3' Street and 13t1' Street on Sunset Beach.
The placed material can be expected to migrate in a westward direction as a function of the wave driven
transport. Historically the dominant long -shore transport for Sunset Beach has progressed to the west,
towards Little River Inlet. Figure 6 shows the historical wave directions and significant wave height
offshore of Sunset Beach through a wave rose with the frequency of occurrence designated by the circular
bars on the figure. The USACE maintains the publicly available data represented in the wave rose diagram.
The wave rose shows that approximately 60% of the wave cases observed in 2014 propagated towards the
west, with the largest percentage coming from the south southeast (SSE) and southeast (SE) direction. If
portions of the nearshore material migrated back to Tubbs Inlet, it could not be distinguished from the
existing sediment supply already available in the ebb shoal system and nearshore area closer to Tubbs Inlet.
Therefore, the relatively small quantity of material proposed for nearshore placement will not create adverse
shoaling impacts for Tubbs Inlet or erosion impacts along Sunset Beach.
z Richardson, K. (2020). NC DCM — maps showing erosion on Sunset Beach. Personal email: ken.richardson(&ncdenr.gov
(20-February-2020).
Town of Sunset Beach Navigation Project
Maintenance Dredging of South Jinks Creek, the Bay Area & Feeder Channel
Nearshore Placement Narrative Page 16
Figure 5. Nearshore Placement Vicinity to Tubbs Inlet, South Jinks Creek, Feeder Channel, and the
Bay Area
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Figure 6. Wave Rose for Sunset Beach
Town of Sunset Beach Navigation Project
Maintenance Dredging of South Jinks Creek, the Bay Area & Feeder Channel
Nearshore Placement Narrative Page 17
SEDIMENT COMPATIBILITY
The Town conducted a significant effort to determine the sediment composition of the dredge material in
south Jinks Creek. The Town also sampled the native material along the shorefront to determine the
compatibility of the south Jinks Creek material. The effort entailed collection of multiple vibracores spaced
on approximate five -hundred -foot intervals throughout the dredge area, as well as grab samples along the
beach face in accordance with NCAC requirements. Figure 7 shows the sediment sample locations in the
respective work areas and Tab G (Sediment Analysis) shows the grain size analysis including the individual
gain size results for each sample.
A total of 6 sediment samples were collected from the proposed south Jinks Creek dredge area (borrow
area) in efforts to define the beach compatible material. The calculated sediment characteristics from the
dredge area were compared with composite characteristics of 65 samples analyzed from the recipient beach
and nearshore zone. Table 1 shows the analysis results for the dredge material and recipient placement site
in accordance with the 15A NCAC 07H.0312. Specifically, 15A NCAC 07H.0312 provides the following
guidelines for determining if material dredged from navigation projects may be placed on the beach or in
the nearshore as a project alternative.
■ The average percentage by weight of fine-grained sediment (less than 0.0625 millimeters) shall not
exceed the average percentage by weight of fine-grained sediment of the recipient beach
characterization plus five percent;
■ The average percentage by weight of granular sediment (greater than or equal to 2 millimeters
and less than 4.76 millimeters) shall not exceed the average percentage by weight of coarse -sand
sediment of the recipient beach characterization plus 10 percent;
■ The average percentage by weight of gravel (greater than or equal to 4.76 millimeters and less
than 76 millimeters) in a borrow site shall not exceed the average percentage by weight of gravel -
sized sediment for the recipient beach characterization plus five percent;
■ The average percentage by weight of calcium carbonate in a borrow site shall not exceed the
average percentage by weight of calcium carbonate of the recipient beach characterization plus 15
percent; and,
■ Sediment and shell material with a diameter greater than or equal to three inches (76 millimeters)
is considered incompatible if it has been placed on the beach during the beach fill project, is
observed between MLW and the frontal dune toe, and is in excess of twice the background value
of material of the same size along any 50,000-square-foot (4,645 square meter) section of beach.
Town of Sunset Beach Navigation Project
Maintenance Dredging of South Jinks Creek, the Bay Area & Feeder Channel
Nearshore Placement Narrative P a g e 18
Figure 7. Sediment Sampling Locations
Table 1. Sediment Comparison (South Jinks Creek & Nearshore Site)
Gravel
Granular
Saond
Fines
Calcium
Analysis Area
/o
/o
/oavel
/o
Carbonate
South Jinks Creek
0.00%
0.01%
98.38%
1.60 %
5%
Recipient Beach
0.07 %
0.55 %
98.15%
1.23%
2%
• Note: Sediment classifications determined in accordance with NCAC 15a07h.0312.
Beach Compatible Material Placement
The material within south Jinks Creek will be hydraulically dredged and placed in the nearshore between
approximate 3' Street and 13th Street on Sunset Beach. The material will be placed along a 2,000-ft by
approximately 200-ft wide template in water depths ranging from approximately -9-ft MLW to -13-ft
MLW. The material will be placed to a maximum (highest) elevation of -6.0-ft MLW. While no State
standards exist for sediment compatibility for nearshore placement, the material has been determined to be
compatible with the characteristics of the immediately adjacent native beach. It can therefore be assumed
that the placement material is also compatible with the sediment characteristics of the recipient nearshore
area.
The hydraulic dredging work will be conducted on a 24-hr per day schedule by a cutterhead dredge between
November 16th and March 31st, in accordance with the USFWS August 2017 Statewide Programmatic
Biological Opinion (SPBO) shown in Tab H. The beneficial reuse material will be transported through an
approximate 7,000-ft long hydraulic pipeline for nearshore placement. The pipeline will most likely be
anchored within south Jinks Creek immediately behind the hydraulic dredge plant and shall be marked with
reflective buoys as recommended by the USCG. Once the floating pipeline traverses landward of MHW ,
Town of Sunset Beach Navigation Project
Maintenance Dredging of South Jinks Creek, the Bay Area & Feeder Channel
Nearshore Placement Narrative Page 19
it will not be allowed to meander back into navigable waters. However, the shore pipe may be forced to
cross navigable waterways at the Bay Area and Feeder Channel confluence with Jinks Creek. The pipeline
will be anchored to the channel bottom to avoid creating a marine hazard at each crossing. The pipeline
will also cross navigable waterways perpendicular to the directions of travel to minimize the pipeline length
within the navigation channel. The pipeline will be anchored in the deepest depth available so as not to
block navigation and will have buoys attached approximately every 25-feet within the crossings. Signage
will also be provided and visible from both directions of navigation to mark the pipeline crossing.
Along the beachfront, the pipeline will be located as close to the dune as reasonable without traversing over
beach grass or other established vegetation. Markings shall be installed along the pipe to warn beach goers
to use caution around the pipeline and to remain off the equipment. Sand ramps will also be constructed for
pedestrian crossings. The ramps may also be used for emergency beach access by the Town or construction
related access for the Contractor. At least one (1) sand ramp will be constructed and maintained where the
pipeline turns to enter the Atlantic Ocean. The sand ramp location, as well as the final pipeline location,
will be coordinated with USFWS staff and the NCWRC to identify the best path for avoiding shorebird
habitat.
The pipeline will traverse across the beach along the shortest reasonable path to enter the Atlantic Ocean.
The pipeline will be anchored once it passes the breaker zone in the nearshore to prevent unnecessary
movement in the pipe. The pipeline route in the Atlantic Ocean shall be marked with reflective buoys on
approximate 500-ft intervals. Smaller spacings may be used if pedestrian use of the nearshore area appears
likely.
The pipeline will traverse to a barge anchored in the placement area. An excavator may be mounted on the
barge to help control and maneuver the pipeline outfall. Regardless, the pipeline will be secured to the barge
with the outfall positioned overboard. The pipeline will face into the placement area. As material placement
occurs, the barge will most likely be maneuvered through the placement area by anchors secured along the
four (4) corners of the barge. Placement operations will occur across the 200-ft wide template prior to
moving the barge west or parallel to the beach in the placement area.
Placement operations will not be allowed to move east or back over an area that has already received
material without measuring the current material height. The material will not be placed higher than -6-ft
MLW at any time. If material accumulates at a stage higher than -6-ft MLW, excess material shall be
removed immediately and prior to advancing further with the placement operations.
Hydrographic surveys shall be conducted before and after nearshore placement occurs. The surveys shall
be conducted in perpendicular and parallel directions to the beach. The surveys will be used to verify
material placement did not encroach above the -6-ft MLW contour. Any deviation found where material
placement occurs above the -6-ft MLW contour shall be remediated by leveling the material with an
excavator positioned on the barge or through other mechanical means. Hydraulic dredging shall not be
allowed as a measure to fix or remediate the material accumulation.
The nearshore placement shall strive to maintain a placement density no greater than 25 CY per foot of
shoreline. This will provide a low -density placement option that allows the placed material to blend into
the existing contours within a six (6) to 18-month period. The low -density placement will also help avoid
visual impacts to the upland properties, as the material will disburse in the nearshore zone and not
accumulate along the beachfront. The material is anticipated to provide additional storm protection, but the
benefit should be minimal due to the low -density placement.
Town of Sunset Beach Navigation Project
Maintenance Dredging of South Jinks Creek, the Bay Area & Feeder Channel
Nearshore Placement Narrative Page 110
MONITORING INITIATIVES
The Town of Sunset Beach will implement construction and physical monitoring efforts to document the
project performance. Since nearshore placement remains a rare or infrequent practice for non-federal
entities, the monitoring results may assist in guiding future projects. Turbidity monitoring shall be
conducted during the construction efforts and physical monitoring will help confirm the long-term project
performance.
Turbidity Monitoring
During nearshore placement operations, the Town of Sunset Beach will monitor the turbidity impacts of
the nearshore placement efforts. Turbidity measurements shall be taken every 4 hours during nearshore
placement operations. Samples will be collected within a 2,000-ft mixing zone extending from the
nearshore placement area in the downdrift direction. A sample will also be collected at the entrance to
Tubbs Inlet during flood tide events. The samples will be collected within the densest portion of any
noticeable plume identified at the mixing zone boundary. The results of the turbidity tests will be compared
with background conditions collected up -current of the placement operations. The turbidity tests results
will be reported to DCM on a weekly basis, along with any corrective actions necessary to address non-
compliant results.
Samples will be collected at the surface, mid -depth, and bottom at each test location. If the samples taken
in the mixing zone exceed 20 Nephelometric Turbidity Units (NTU's) or the background measurements
(whichever is greater), placement operations will cease until the measurements return to background
conditions. If turbidity readings frequently exceed the monitoring protocols, the pipeline outfall used for
the nearshore placement, may be lowered to the ocean floor to help minimize suspended solids. If the
pipeline is lowered, the Town will raise the pipeline at least once every four (4) hours to observe the material
coming out of the pipe. This will help to reduce the potential for non -compatible material placement in the
nearshore.
Physical Monitoring
The Town will also conduct physical monitoring on an annual schedule to track the project performance.
The monitoring will entail the nearshore placement location and Tubbs Inlet to document if increased
sediment shoaling occurs as result of the nearshore placement. Surveys of the nearshore placement area
will be used to investigate how the placed material disperses into the existing sediment regime.
The monitoring efforts will be conducted annually for a minimum of three (3) years to establish a shoaling
rate across the material placement site. Surveys within the dredge area may continue past the three (3) year
period at the Town's discretion. Surveys of the nearshore placement area will continue annually until traces
of the placed sediment no longer remain. The monitoring will evaluate if sediment remains by evaluating
if the contours of the placement area have returned to pre -construction conditions. The monitoring will also
identify the most likely migration of the placed sediment.
AVOIDANCE & MINIMIZATION EFFORTS
The Town of Sunset Beach has worked with the resource agencies to avoid and minimize potential impacts
that could reasonably be associated with the project since 2016, including four (4) coordination meetings
and one (1) on -site discussion. Although the primary focus of the coordination efforts concentrated on
potential impacts that may occur as a result of the dredging process, the Town also coordinated in regards
to nearshore material placement. The Town organized an agency coordination meeting on June 30, 2020 to
discuss potential resource impacts that may result from nearshore placement.
Town of Sunset Beach Navigation Project
Maintenance Dredging of South Jinks Creek, the Bay Area & Feeder Channel
Nearshore Placement Narrative Page 111
As part of the nearshore placement coordination efforts, the Town evaluated the potential to impact critical
habitat to loggerhead turtles, right whales, hardbottom substrate, and archeological resources. The
evaluation indicated the proposed placement area does not pose a significant risk to these resources. The
nearshore area does not contain identified critical habitat for loggerhead turtles, nor any known hardbottom
substrate. Also, no known archeological resources exist in the project area. The site is within critical habitat
for the North Atlantic Right Whale, but due to limited water depth, the time of construction, and proximity
to shore, the project is not likely to impact right whale. Tab J (Biological Assessment) provides additional
detail on the evaluation of critical habitat for the North Atlantic Right Whale.
Additional avoidance and minimization efforts include limiting the dredging operations to the months of
November 16t''thru March 31` to reduce the potential for environmental impacts. The approximate 7,000-
ft hydraulic pipeline carrying the nearshore placement material dredged from S. Jinks Creek will also be
positioned away from any established dune or beach vegetation. The final pipeline placement location will
be coordinate with the USFWS and NCWRC prior to the initiation of dredging operations. The Town will
also monitor turbidity created by the nearshore placement to help evaluate if impacts occur as a result of
the sediment placement. Post -construction physical monitoring will also document the nearshore material
placement performance for a period of at least three (3) years. In addition, project construction will follow
guidelines issued by the USFWS and NOAA designed to protect manatee, sea turtle, and smalltooth
sawfish.
SUMMARY
The Town of Sunset Beach intends to maintenance dredge south Jinks Creek as part of an overall initiative
for the Town and residents to manage the established navigation corridors on the east end of Sunset Beach.
As part of the project, approximately 40,500 CY will be placed in the nearshore as beneficial reuse material.
This modification request changes the proposed placement area for beach compatible material from the
oceanfront between 5' and 12t' Street (previously permitted) to the active nearshore region between 3' and
13`' Street. The nearshore site extends along a 2,000-ft long by 200-ft wide stretch of oceanfront in water
depths ranging from -9-ft MLW to -13-ft MLW.
The Town of Sunset Beach chose nearshore placement of the beach compatible material as a last option to
maintain consistency with North Carolina General Statute (NCGS) 113-229, which states "Clean, beach
quality material dredged from navigational channels within the active nearshore, beach or inlet shoal
systems shall not be removed permanently from the active nearshore, beach or inlet shoal system. " The
Town explored other options such as beach placement and material stockpiling. However, these alternatives
were found as either (1) not permittable, (2) unbuildable due to property rights concerns, or (3) not viable
as a final project solution.
Sunset Beach identified a nearshore placement site between 3' Street and 13t' Street to address long term
erosion impacts identified by the North Carolina Division of Coastal Management (DCM), as well as from
observations from Hurricane Matthew impacts. The placement site is approximately 6,000-ft downdrift
from Tubbs Inlet and 600-ft offshore of MHW. The material will not be placed higher than the -6-ft MLW
contour, to limit the potential for visual impacts and navigation concerns.
The Town conducted an extensive sediment analysis and found the material in south Jinks Creek to consist
of more sand than the native beach. The sediment analysis found the native beach and placement area to
consist of approximately 98.15% sand, while the dredge material consisted of 98.38% sand. This result,
along with the comprehensive sediment analysis, shows the material matches well with the placement area
composition.
Town of Sunset Beach Navigation Project
Maintenance Dredging of South Jinks Creek, the Bay Area & Feeder Channel
Nearshore Placement Narrative Page 112
The work will follow guidelines and recommendations provided by the USFWS and NOAA to minimize
the potential for environmental impacts during construction. This includes constructing during the cooler
winter period of November 16t' through March 315t. The Town will also coordinate with the USFWS and
the NCWRC during construction for the pipeline placement proposed to carry the nearshore placement
material. The coordination efforts will help limit the potential for construction impacts to nesting or
foraging shorebirds. Furthermore, the project will follow construction guidelines designed to protect
manatee, sea turtle, and smalltooth sawfish. In addition, the Town will implement turbidity monitoring
protocols during construction and will also monitor the project performance for a minimum 3-year period.