Draft Environmental Assessment. Fifi Island Restoration Rock Breakwater Extension. Jefferson Parish, Louisiana.

摘要

A rock breakwater structure, approximately 2,200 feet in length, was constructed in 2004 at the northeast end of Fifi Island for land restoration and abatement of destructive wave action affecting the northeast shoreline of Grand Isle. The project was constructed through an interagency cooperative effort including the National Oceanic and Atmosphere Administration, State of Louisiana, Jefferson Parish, Grand Isle Independent Levee District (GIILD) and the Bureau of Ocean Energy Management, Regulation, and Enforcement (BOEMRE). This U-shaped structure, which is designed for containment of dredged material, was constructed in conjunction with the United States Army Corps of Engineers (USACE) Fifi Island Dredged Material Placement Plan, a beneficial use plan for dredge spoil to restore and stabilize eroded portions of Fifi Island. Following the completion of this project, the GIILD installed a 200-foot long, floating wave abatement facility, known as the Whisper Wave Breakwaters, at the northeast end of the structure, as a further effort to abate destructive wave action at Grand Isle. This facility was short-lived as a result of being completely destroyed by Hurricane Katrina in 2005. Jefferson Parish, the applicant, initially requested and was approved for FEMA funding for the replacement of the Whisper Wave facility.