Revetment
Protective structures facing seaward that absorb wave energy through surface roughness and slope geometry, reducing erosion of the material behind.
Real World
The rock armour revetments at Lyme Regis, Dorset, use large Norwegian granite boulders to dissipate wave energy and protect the historic Cobb harbour and town from further cliff retreat.
Exam Focus
Compare revetments with seawalls by contrasting their slope angle, energy dissipation method, cost, and visual impact.
How well did you know this?