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All you need to know about Hard Engineering Options for Coastal Management!
Erosion from the sea and weathering are the two main causes for the physical transformation of coastlines. It involves the wearing and breaking down of rocks. Both hard and soft rock are found on coastlines and these erode at different rates (see our song "Headlands and Bays"), meaning castal defences are necessary to combat erosion at high levels.
Similarly to engineering options with rivers, there are two groups of methods for controlling erosion - hard and soft engineering options. Hard options often see man-made, constructed/manufactured pieces of equipment used to stop or lessen the damage caused by erosion or longshore drift. Soft options often see the use of strategy involving the natural landscape along a coastline.
Hard Engineering Options along Coasts include:
There are advantages and disadvantages of hard engineering options on coasts, as with any method of defence. They are hardwearing, and extremely good at the job they have been designed for, protecting the coastline and settlements behind it. However they are often extremely expensive options to impliment, due to the transportation of large rocks and construction pieces, the construction of the defences themselves, and long term impact of expensive replacements when wave energy has eroded too much of the defence away.
Make sure to check out our music video on Hard Engineering Options for Coasts, remember the lyrics, and then have a go at our test!
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