Plans for the Elimination of Shoaling in the New Castle-Finns Point Ranges, Delaware River: Model Investigation
Abstract
This memorandum constitutes a comprehensive report on a model study of the New Castle and Finns Point Ranges section of the Delaware River ship channel, The model investigation was authorized by the Chief of Engineers, U. s. Army, on 10 September 1940, and was conducted by the Waterways Experiment Station during the period June 1941 to January 1945. The problem with which the model study was concerned was that of shoaling in the above-mentioned ranges, where the annual shoaling rate averages about 2,000,000 cu yd, The purpose of the study was to predetermine the effectiveness of various proposed improvement plans in eliminating or reducing maintenance dredging in the ship channel. Plans tested consisted of: (l) installing structures designed to reduce shoaling by directing tidal currents into conformity with the dredged channel; (2) realigning the navigation channel to conform more nearly to the alignments of existing tidal currents; and (3) constricting the crosssectional area of the channel to increase flood and ebb velocities in the channel reach subject to excessive shoaling. Tests were conducted on a fixed-bed model in which transportation and deposition of shoaling material, as affected by the various hydraulic forces, were reproduced and studied.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1948
- Accession Number
- ADA635958