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Title: Environmental Assessment on Maintenance Dredging Port Everglades, Broward County, Florida
Authors: United States. Army. Corps of Engineers. Jacksonville District.
Keywords: Dredging
Environmental impact analysis
Port Everglades (Fort Lauderdale, Fla.)
Publisher: United States. Army. Corps of Engineers. Jacksonville District.
Abstract: The U.S. Army Corps of Engineers (Corps), Jacksonville District, proposes to continue conducting routine maintenance dredging of the Port Everglades Federal Navigation Project, Broward County, Florida (see Figure 1, Plan View and Location Map). Approximately 100,000 cubic yards of sediment, resulting from shoaling, will be removed from the harbor on a three-year basis or as needed, to maintain the authorized depths of the Federal Navigation Project. Placement of dredged material for the ten-year life of this assessment (the length of time covered in the pending State Water Quality Certificate (WQC)) will be in portions of the entrance channel which are deeper than the required navigation depth, the Environmental Protection Agency (EPA) designated Ocean Dredged Material Disposal Site (ODMDS), and on John U. Lloyd State Park beaches. The project EA is proposed to be valid as long as conditions have not changed appreciably, for at least ten years, as the WQC for the Port Everglades O&M dredging is expected to cover a duration of ten years (R. Williams, FLDEP, pers.comm). The Marine Protection, Research and Sanctuaries Act (MPRSA) Ocean Disposal concurrences from EPA are issued for a three year period. If the WQC is issued for a longer period of time this EA may be considered “valid” for that length of time, or until conditions change so that another NEPA document is necessary to cover impacts associated with maintenance dredging. At a minimum this NEPA document should be re-evaluated after five years to determine whether conditions have changed and new NEPA documentation is needed. Although the Corps is preparing this Environmental Assessment (EA) to evaluate the effects of maintenance dredging the entire Federal Navigation Project for the next ten-years, recent shoaling in the port has spurred in the need for a maintenance event. As part of its navigation mandate, the Corps conducts annual surveys of the Federal Navigation projects. During the 2004 survey, it was determined that shoals had formed in various locations within Port Everglades and that these shoals have the potential to adversely effect vessel safety and port operations. Shoals have developed in the Main Turning Basin (MTB), Entrance Channel (EC) and in the North Turning Basin (NTB) of the port. Shoaling of the Inner Entrance Channel was addressed in a separate NEPA document completed by the Corps in November 2003 and is addressed in Section 1.5 of this document.
Appears in Collections:Environmental Documents

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