Lanterna Rally

Author: ARMY ENGINEER DISTRICT SAVANNAH GA.

Publisher:

Published: 1983

Total Pages: 357

ISBN-13:

Savannah District, U.S. Army Corps of Engineers, conducted a maintenance program evaluation study of their portion of the Atlantic Intracoastal Waterway (AIWW) which extends from Port Royal Sound, South Carolina, to the St. Mary's River at the Georgia-Florida line. The major objective of the study was to formulate a 50-year maintenance plan, as well as to identify and evaluate problems associated with maintenance of the waterway. Problem shoaling areas were identified, and dredging and disposal activities assessed in regard to their impacts on the environment along the waterway. Based on this data, various dredging alternatives, including existing methods, were evaluated with respect to their environmental, technical and economic feasibility. Nineteen major shoaling areas on the main route of the AIWW and one area on the alternate route around St. Andrews Sound were identified. The primary method of dredged material disposal is undiked discharge into disposal tracts adjacent to the waterway (with the exception of several open water sites) and on diked area. Various alternatives were evaluated to develop a maintenance scheme that considers technical, economic and environmental factors. Based on the results of the evaluation of alternatives, continued discharge onto existing deposits in undiked areas adjacent to the waterway is the recommended alternative for most of the 20 shoaling areas.