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Title: Nassau County, Florida, Shore Protection Project : Final Environmental Assessment
Authors: United States. Army. Corps of Engineers. Jacksonville District.
Keywords: Shore protection
Nassau County (Fla.)
Publisher: United States. Army. Corps of Engineers. Jacksonville District.
Abstract: The authorized Nassau County, Florida, Shore Protection Project provides for initial restoration of 3.6 miles of eroded beach from Sadler Road to 0.7 miles south of the south jetty; and, periodic nourishment of 4.3 shoreline miles from the south jetty to Sadler Road. At the request of the state of Florida, the District is also evaluating alternatives to the erosion problems associated with Ft. Clinch State Park (FCSP). Project design includes a 40 foot berm extending from the pre- project +10.4 contour (referenced to national geodetic vertical datum). The foreshore will be appropriately sloped out to the existing bottom. The project would provide for initial restoration and future nourishment of the design beach profile. Advance nourishment material would be placed at the time of construction to offset anticipated erosion losses between nourishments. Initial construction will require placement of approximately 2,500,000 cubic yards (900,000 cy. design volume + 1,600,000 cy. advance nourishment) of beach quality material with characteristics similar to the native sand. The primary borrow source identified is immediately south of the south jetty. Due to the amount of erosion which has occurred since the last nourishment, the above amounts of sand are required to protect the SPP area which is developed with primarily single-family houses. The recommended plan for the Fort Clinch erosion control segment includes construction of a revetment. The crest height of the revetment is +8.0 feet Mean Low Water.
Description: Environmental Assessment/Finding of No Significant Impact
Rights: Approved for Public Release; Distribution is Unlimited
Size: 139 pages/100.4 Mb
Appears in Collections:Environmental Documents

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