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Title: Environmental Assessment : St. Lucie Inlet Navigation Study, Design Memorandum
Authors: United States. Army. Corps of Engineers. Jacksonville District
Keywords: Dredging
Dredging spoil
Inland navigation
Saint Lucie Inlet (Fla.)
Publisher: United States. Army. Corps of Engineers. Jacksonville District.
Abstract: The site of the proposed action is St. Lucie Inlet, Martin County, Florida. The recommended plan consists of the following features. The seaward-most 450' of the north jetty will be raised to +8 feet m.l.w., a sand impoundment basin will be constructed to a length of 1750 feet, a width of 450 feet with a depth of-16 feet m.l.w., plus 2 feet overdepth. The south jetty would be lengthened by 200 feet to an elevation of +8 feet m.l.w and sand tightened. The project is shown on Plate 1 of the Main Report. Prior to initial construction of the impoundment basin, a maintenance dredging event will take place. This material, consisting of beach quality sand, will be deposited at the nearshore site along the shoreline south of the inlet. The disposal areas for all future maintenance events will be considered in the following order: (1.) on the beaches of Jupiter Island beginning approximately 5000 feet south of the south jetty; or (2.) in a nearshore disposal area at a depth less than -16 feet NGVD. Material removed from the impoundment basin will be placed at an artificial reef site located northeast of the north jetty. The reef site is 3000 feet by 3500 feet and lies in 40 to 50 feet of water. The center coordinate of the reef site is 27 degrees, 12.5' N and 80 degrees 06.5' W and is shown on figure 3 of the main report.
Description: Environmental Assessment/Finding of No Significant Impact
Rights: Approved for Public Release; Distribution is Unlimited
Appears in Collections:Environmental Documents

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