Economics of Beach Nourishment Under Scenario of Rising Sea Level
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 112, Issue 3
Abstract
The economics of using coastal structures to retain sand on a beach in conjunction with beach nourishment is presented. As the cost of suitable beach sand increases it becomes more economical to include structures in a project if those structures increase the residence time of the sand on the beach. Expenditures that can be justified to provide structures depend on how long the structures extend the sand's residence time and on the prevailing interest rate. Results are presented graphically for perpetual nourishment projects for the case of a constant erosion rate (a constant rate of sea‐level rise). A correction factor to consider finite lifetime projects is also presented. For the, case where the rate of sea‐level rise continues to increase (as has been projected by several recent studies) perpetual nourishment becomes impossible since the time between successive renourishments decreases. However, nourishment projects with finite lifetimes can be evaluated to establish justifiable structure costs.
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References
1.
Bruun, P., 1962, “Sea Level Rise as a Cause of Erosion,” Journal of the Waterways and Harbors Division, ASCE, Vol. 88, WW1, pp. 117–133.
2.
Climate Research Board, 1979, Carbon Dioxide and Climate: A Scientific Assessment, J. Charney, Chairman, Washington, D.C., NAS Press.
3.
Hansen, J., et al., 1981, “Climate Impact of Increasing Atmospheric Carbon Dioxide,” Science, Vol. 213, pp. 957–966.
4.
Hicks, S., 1973, “Trends and Variability of Yearly Mean Sea Level 1893–1971,” Technical Memorandum 92, National Oceans and Atmospheric Administration, National Ocean Survey, Rockville, Md., Mar., 1973.
5.
Hoffman, J. S., 1984, “Estimates of Future Sea Level Rise,” Greenhouse Effect and Sea Level Rise, M. C. Barth, and J. G. Titus, Eds., van Nostrand Reinhold Co., New York, N.Y.
6.
Kraft, J. C., and Belknap, D. T., 1977, “Holocene Relative Sea Level Changes and Coastal Stratigraphic Units on the Northwest Flank of the Baltimore Canyon Trough Geosyncline,” Journal of Sedimentary Petrology, Vol. 47, No. 2, pp. 610–629.
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Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 112 • Issue 3 • May 1986
Pages: 418 - 426
Copyright
Copyright © 1986 ASCE.
History
Published online: May 1, 1986
Published in print: May 1986
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