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Title:	Fire Island Inlet to Moriches Inlet, Fire Island Stabilization Project, Hurricane Sandy Limited Reevaluation Report : Evaluation of a Stabilization Plan For Coastal Storm Risk Management In Response To Hurricane Sandy & Public Law 113-2
Authors:	United States. Army. Corps of Engineers. New York District
Keywords:	Fire Island Inlet (N.Y.) Moriches Inlet (N.Y.) Hurricanes Storms Shore protection Flood control Environmental management Environmental protection
Publisher:	United States. Army. Corps of Engineers. New York District.
Abstract:	This project is designed to provide coastal storm risk management from coastal erosion and tidal inundation through construction of a beach berm and dune, at Fire Island Inlet to Moriches Inlet, New York. The project area stretches from Robert Moses State Park in the west to Smith Point County Park in the east for a total of 19 miles. The purpose of the project is to provide a level of storm damage protection to mainland development protected by the barrier island. As a consequence of the severe coastal erosion during Hurricane Sandy in October 2012, the dune and berm system along Fire Island is now depleted and vulnerable to overwash and breaching during future storm events, which increases the potential for storm damage to the shore and particularly back-bay communities along Great South Bay and Moriches Bay. The Fire Island to Moriches to Inlet (FIMI) Plan was developed using background material and existing information and data to expedite the FIMI Hurricane Sandy Limited Reevaluation Report (HSLRR) in accordance with approach approved by HQUSACE in a memorandum dated 8 January 2014 and consistent with the Disaster Relief Appropriations Act of 2013 (Public Law. 113-2; herein P.L. 113-2). This Stabilization Project is a one-time, stand-alone project with its own independent utility. As developed, this project does not limit the options available in the Fire Island to Montauk Point (FIMP) Reformulation Study or pre-suppose the outcome of the Reformulation Study. After the initial placement of 6,992,145 cubic yards (cy) of sand, the project is expected to erode, and diminish in its protective capacity, eventually returning to a pre-project condition. The Project is designed with advance fill to maintain design conditions for a period of 5 years, and it is estimated that the residual effect of the fill placement would last another 5 years. After the residual effect of beachfill has diminished, there is further residual effect of 10 years that is provided by the acquisition and relocation of structures. The total period over which residual effects are expected is 10 years for sand and 20 years for structure acquisition. The project’s annual benefits and annual costs were developed using October 2013 price levels and are $18.8M and $17.5M, respectively. The Benefit to Cost Ratio is 1.1 (at 3.50% FY14 Discount Rate). The project is economically justified and the District recommends that the Stabilization project be constructed at a project cost of $207,100,000 with a total investment cost of $223,324,000. The Draft HSLRR and Environmental Assessment (EA) were released for public review. The report has been revised to account for public comments received on the project, as well as agency input received through coordination and consultation that occurred concurrently with public review of the EA. Based upon consideration of the public and agency review and consultation, including a favorable Biological Opinion, and approval of the HSLRR and EA by the North Atlantic Division, the District has signed a Finding of No Significant Impact (FONSI).
Description:	Limited Reevaluation Report
Rights:	Approved for Public Release; Distribution is Unlimited
URI:	https://hdl.handle.net/11681/43381
Appears in Collections:	Environmental Documents