Question

Give one advantage of building small check dams to stop the rain water from flowing away

Answer 1

Answer and explanation : The main purpose of check dams is to reduce water velocity and to trap sediments in gullies and streams instead of additional soil material being eroded away (Gray and Leiser 1982). They are used to reduce the velocity of concentrated flow and, therefore, to reduce the erosion in a swale or channel.

Answer 2

Answer:

Check dams are a highly effective practice to reduce flow velocities in channels and waterways. Contrasting big dams, check dams have a faster implementation timeline, are cost effective, and are smaller in scope.