Beach erosion in San Benito Chiapas, Mexico : assessment and possible solution

Periodo de realización: 1900/01/01 al 2014/06/01

Tipo: Artículo científico

Lugar(es) de estudio: Puente San Benito, Puerto de San Benito, CHIS, México
Resumen: "The study area is on the Gulf of Tehuantepec, where a harbour was built at San Benito, near Tapachula, Chiapas, in1972. Two breakwaters, of 630 m and 800 m, respectively, were constructed to provide protection to the harbourchannel. Erosion problems were detected near the harbour even before it was opened to trade. The original designhad many flaws as no wave climate analysis had been done and littoral drift had not been taken into account. In 1975,17 groins were built with the aim of reducing the erosion on the adjacent beach. These were unsuccessful and, in1980, a rock armour apron was built at the most seriously eroded section in a further attempt to minimize theproblem and to protect the population. However, the erosion continues at a rate of around 25 m per year in somesections. Commercial and navigation activities at the harbour are important for the population of San Benito and itssurroundings, so coastal management policies must facilitate harmonic coexistence between human activities and thecoastal system. This study analyses the problem and offers alternative solutions for minimizing the beach erosionusing hard and/or soft solutions."

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