Monday, May 7, 2012

Groynes

A form of hard engineering, built to limit the amount of sediment moving up the beach due to longshore drift. Without these (or other form of coastal defences) beaches wouldn’t exist. They are generally made of wood or piles of rocks and their length and elevation, and the spacing between each groyne is determined by the local wave energy and slope of the beach.

Here I have made my own groynes out of little bit of wood, to show how sediment piles up behind them therefore showing how they work in stopping the sediment moving up the beach.