Journal
COASTAL ENGINEERING
Volume 42, Issue 2, Pages 143-153Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0378-3839(00)00054-5
Keywords
beach nourishment; coastal zone management; beach erosion; Gulf of Cadiz
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Beach erosion problems have been solved by adding sand to the beaches along the Gulf of Cadiz. The Gulf is located in SW Spain between the Portuguese border and the Strait of Gibraltar. During the last decade, more than 12 x 10(6) m(3) of sand have been nourished in 38 restoration operations carried out on 28 beaches. The main characteristics of the nourishment campaigns (year, volume, budget, transport method, sand data, etc.) are presented. Location of sand borrow sites and distance to the beaches are also shown. Monitoring programs have been performed in order to calculate sediment loss rates. These results have been related to the beach length, the berm width and the budget in order to obtain a variety of relationships for maintenance cost as, for example, the total annual cost for each beach. This information is very useful when developing a strategy in coastal zone management. Furthermore, at least in reef-protected beaches, small yearly renourishments similar to the yearly losses, instead of greater nourishments performed with a periodicity of many years, lead to an economical saving, as well as to a better use of the natural resources. (C) 2001 Elsevier Science B.V. All rights reserved.
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