Blountstown Reach, Apalachicola River. Movable-Bed Model Study
Abstract
The Blountstown Reach, Apalachicola River, is located between navigation miles 81 and 76. This area requires approximately 107,000 cu yd of dredging annually to maintain the navigation channel. The model study was conducted to examine the dredged material disposal in the thalweg and within the bank and to develop a system of contraction works to develop and maintain the navigation channel with little or no maintenance dredging. The model, built to a horizontal scale of 1:120 and a vertical scale of 1:80, was of the movable-bed type and allowed for inflow from both and Apalachicola River and Sutton Lake. The three phases of the model study were as follows: (a) Thalweg disposal. Disposal of dredged material in the deep portion of the bendways; (b) Within- bank disposal. Disposal of the dredged material within the water line and no closer than 100 ft from the navigation channel; (c) Contraction works. Use of the training works to contract channel width and improve sedimentation conditions. Plan A was the initial plan suggested by the Mobile District that was modified to improve its efficiency. Plan B was a progressive development of training works.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1988
- Accession Number
- ADA199360
Entities
People
- R. A. Mccollum