Land Application of Dredged Material at Port Manateeby Jay F. Beckman, Bromwell & Carrier Inc, Lakeland, FL, USA,
W. David Carrier, III, Bromwell & Carrier Inc, Lakeland, FL, USA,
Thomas A. Shoopman, Bromwell & Carrier Inc, Lakeland, FL, USA,
Abstract: Maintenance dredging of approximately 600,000 cu yd of highly plastic clay was conducted in October 1983. This material was deposited on a nearly 200 acre tract of farmland in a depth of about 5 ft. After desiccation, the clay will only be about 1 ft (30 cm) deep, and this layer will be mixed with the natural sands by plowing and discing. Chemical studies have shown that potential problems with the reclamation of sea water sediments, such as acidity, salinity, and contaminants, will not adversely affect the reclaimed soil. Leaching of the excess salts by rainfall will yield a soil suitable for agricultural use within two to three years. It is likely that the land will be improved for agricultural use, and will not be adversely affected for future construction. The initial construction costs of dikes and site preparation were about 40% less for the land application method and reclamation costs, and development costs are considerably less as well.
Subject Headings: Dredged materials | Agriculture | Water reclamation | Land use | Construction costs | Clays | Soil mixing | Salt water
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