Other Coastal Environments: 1999
Publications
Author:
Trembanis, A.C., Pilkey, O.H., and
Valverde, H.R.
Title: Comparison of beach
nourishment along the US Atlantic, Great Lakes, Gulf of Mexico,
and New England shorelines.
Publication: Coastal
Management 27(4): 329-340, 1999.
© Taylor &
Francis
Notes:
The U.S. national beach nourishment
experience is summarized for the East Coast barrier islands, the
Gulf of Mexico, New England, and the Great Lakes. A total of 1,305
nourishment episodes on 382 beaches are recorded at a total
estimated cost of approximately $1.4 billion ($2.5 billion in 1996
dollars). In terms of both volume and costs, nourishment has been
the most extensive by far on the East Coast barrier islands.
Depending on the region, between 65% and 85% of all nourishment
projects have a federal funding component. Annual expenditures and
sand volumes for beach nourishment are increasing, especially on
East Coast barriers. At present, total annual national beach
nourishment costs (excluding the Pacific Coast) are on the order
of $100 million per year. The cost per cubic yard of nourishment
sand as expressed in 1996 dollars has remained more or less
constant over time. Additionally, the volumes of sand needed for
subsequent nourishment episodes on individual beaches do not
decrease, despite contrary assumptions in the
shoreface-profile-of-equilibrium concept that subsequent
nourishment volumes should diminish. In light of the historical
experience of beach nourishment identified in this study,
individual state and local coastal communities should reevaluate
their plans for future beach nourishment programs. The complete
listing of all the data on nourished beaches from this survey is
available at www.geo.duke.edu/Research/psds/psds.htm
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