Managing flood hard engineering

Question 1

Dams

Answer 1

regulates river flow and reduces risk of flooding
water is released when rainfall is low

Question 2

Channel straightening

Answer 2

cutting through meanders to make river straight
may risk flood downstream
straightened channel speeds up flow of water

Question 3

Embankments

Answer 3

Raised riverbank
raising level of riverbank allows channel to hold more water before flooding occurs

Question 4

Flood relief channel

Answer 4

man made river channel
sluice gates can be opened to allow excess water to flow away into flood relief channels