Question

what are some disadvantages of groynes?

Answer 1

Answer:

Your answer is......

Groynes that are too long or too high tend to accelerate downdrift erosion, and are ineffective because they trap too much sediment. Groynes that are too short, too low, or too permeable are ineffective because they trap too little sediment.

Answer 2

Answer:

disadvantages of groynes is

Expensive to build and maintain. Curved sea walls reflect the energy of the waves back to the sea. This means that the waves remain powerful. Can also be unattractive.

Hope it's helpful