Coastal Management Solutions
Sea Walls, Groynes and Breakwaters
Groynes
Constructed along beaches (almost at right angles to the shore) to catch sand and make beaches wider. As a management technique they rely on the sand carried by longshore drift. They protrude into the ocean and are designed primarily to slow down the rate of longshore drift.
Sea wall
Used to stop erosion of the coastline and protect property. Sea walls often replace the foredune, which is an essential part of the beach erosion– accretion cycle and the scenic appeal of the beach may be reduced by their construction.
Break waters
Constructed at the entrances to rivers, they extend into the ocean in order to stabilise river entrances and provide safe access for boating by keeping the river entrance clear of sand build-up. However, these breakwaters can act to dramatically alter patterns of erosion, transportation and deposition of sand along the coastline.
Check out this link!
Click on the link below where you can find information and interactivediagrams on how these strategies work.