Foreshore Protection, Lower Mississippi River

by Rudolf Hertzberg,

Serial Information: Journal of the Waterways and Harbors Division, 1965, Vol. 91, Issue 2, Pg. 1-16

Document Type: Journal Paper


Progressive increase in volume and speed of river traffic has created severe low water wavewash problems along the Mississippi River below New Orleans. Related problems are developing upstream. Corrective work must prevent further erosion, and where damage has reached proportions sufficient to endanger the levee, must provide means for inducing restoration of lost foreshore by deposition of sediment. Early forms of protection, including bulkheads of wood and steel, were relatively ineffective. Brush dikes were effective, but deteriorated rapidly, and maintenance costs were excessive. Riprap dikes and pavements have been highly effective; maintenance costs on properly designed structures have been negligible. First costs have been kept low by use of broken concrete for riprap, and by use of clam shell as base and filter blanket material. Current costs (1964), reflecting ample supplies of materials and improved efficiency in construction methods, are considerably below the 1954-1964 average.

Subject Headings: Levees and dikes | Littoral zones | Rivers and streams | Maintenance | Riprap | Pavement design | Construction materials | Construction methods | Mississippi River | New Orleans | Louisiana | United States

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