Measure #2 - Breakwaters (Hard Engineering)
Tuesday, 19 June 2012 | 08:03 | 0 comments
- It can be built with one and attached to the coast or away from the coast.
- They break the force at high energy waves before they reach the shore.
- When constructed offshore, it can create a zone of calm water behind them and allow deposition to occur, forming beaches.
- Materials deposited behind the breakwater are protected but the zone located away from the breakwater is not.
- It will not receive new supplies of materials and it will get eroded away.
LIMITATIONS:
- Breakwaters are unable to protect the whole coast completely. Therefore, unprotected areas are prone to erosion.
When the breakwaters deflect the waves before they reach the shore, the waves are also deflected to other places, such as exposed areas of the coast, causing erosion.
