Guyana: More Mahaicony sea defence under threat after spring tide sweeps away mangroves

The Ministry of Public Works today said that the current spring tide has exposed more of the Mahaicony sea defence to erosion after protective mangroves were swept away.

A statement from the Ministry of Public Works follows:

The Ministry of Public Works is assessing the impacts of the current spring tide on the sea and river defences in vulnerable locations along the coast. Engineers from the Ministry have been monitoring critical stretches of coastline impacted by the spring tide and measures are being taken to minimise potential flood impacts. The current spring tide, which commenced on September 15th and will be active until September 22nd, is one of the most pronounced for the year 2020. Based on the published tide tables, high tide levels in excess of 3.3m above Chart Datum will be experienced, with a maximum high tide level of 3.32m above Chart Datum on September 18, 2020. According to recent meteorological reports, a total of five tropical cyclones are currently active in the Atlantic Ocean. The five systems are Hurricane Paulette, Hurricane Sally, Tropical Storm Teddy, Tropical Storm Vicky, and Tropical Depression Rene. Expert meteorologists have indicated that this is a notable development, since the only other recorded instance of five simultaneously active weather systems in the Atlantic was in 1971. Tropical storms and low-pressure systems, when combined with spring tide effects, characteristically contribute to a more aggressive wave climate and increases nearshore wave energy. The Ministry is currently consulting with the Hydrometeorological Department to determine the potential influence of active Atlantic weather systems on the nearshore wave climate along the Guyana Coast.


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