FLOOD PREVENTION TECHNIQUES - 2

Sea Wall Barrier s

Implementation o f a sea w all a llows for safe protection against a c oast and its c ommunity. The sea wall is c onstructed o f concrete and p laced

Process

anchored to ensure i t doesn’t topple over. Weep holes are then placed in the wall to allow for water drainage and preventing pressure behind the wall. The bottom of t he w all is set into the w ater ground, with r ip raps ( small rocks) p laced for suppor t in front of the wall.

Pros Cons

- Seawalls a re not a s expensive as l andscaping ground.

- They p coast outside of the wall.

- The walls are sturdy and does not crack easily.

- Requires high maintainance to perf orm well.

- O vert opping can o ccur if sea l evel r ises past the wall height.