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Title: Atlantic Coast of Maryland Shoreline Protection Project : Final Supplemental Environmental Impact Statement, General Reevaluation Study : Borrow Sources for 2010-2044
Authors: United States. Army. Corps of Engineers. Baltimore District
Keywords: Coasts--Maryland
Beach nourishment
Environmental management
Environmental protection
Publisher: United States. Army. Corps of Engineers. Baltimore District.
Abstract: The U.S. Army Corps of Engineers, Baltimore District (USACE) has prepared a Final Supplemental Environmental Impact Statement (FSEIS) for the Atlantic Coast of Maryland Shoreline Protection Project (Project) to evaluate the impacts of dredging several new offshore shoals to provide sand for the project for the years 2010 - 2044. Between 6,800,000 and 15,000,000 cubic yards of sand would be needed through 2044, depending on future storminess. Borrow sources to obtain up to 15,000,000 cubic yards of sand were identified. Offshore shoals are the best sand sources for the project since these contain large quantities of suitable sand that can be cost-effectively obtained. Three offshore shoals located in Federal waters were recommended: Weaver Shoal, Isle of Wight Shoal, and Shoal "A." Sub-areas on each shoal were delineated based on suitability of sand for beach nourishment purposes. Sand at Shoal "B," also known as Bass Grounds or First Lump, is also suitable, however that shoal is currently an important fishing grounds. Accordingly, Shoal "B" would not be utilized unless future reevaluation finds that its relative value as a fishing grounds has declined substantially. Dredging guidelines to minimize long-term impacts to the offshore shoals were formulated. No more than about 5% of the total volume of any shoal would be dredged. Dredging would avoid the crest, be conducted uniformly over a wide area, and go no deeper than ambient depths of the adjacent seafloor. Dredging would be preferentially conducted on the up and downdrift ends of each shoal if suitable sand is present there.
Description: Supplemental Environmental Impact Statement
Rights: Approved for Public Release; Distribution is Unlimited
Appears in Collections:Environmental Documents

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