Measure #1 - Seawalls (Hard Engineering)
Tuesday, 19 June 2012 | 08:04 | 0 comments
- A man made wall structure built on or near the shoreline
- The purpose of it is to protect the land or an area of water behind the wall from erosion
LIMITATIONS:
- It may not protect the coast in the long run.
As waves break against the seawalls, the energy from the waves is redirected downwards, to the base of the seawall, causing it to weaken and eventually collapse. Hence, seawalls have to be carefully maintained.
- Building seawalls is very expensive.
E.g, in England, it can cost up to $3million to build a stretch of seawalls of 1 kilometre.
