Consider the following statements. I. Possibility of combining some other structure with a fall eg. regulator, road bridge etc. II. Cutting and filling are required below and above the fall should not be necessarily equal. III. The command should not be reduced due to the lowering of F.S.L and the fall may be located below the outlets. Which of the following statement is correct for site selection of a fall?

Correct Answer: I and III
The unbalanced earthwork is quite expensive so the excavation and filling on two sides of the fall should be balanced. The considerations of the economy in ‘cost of cutting and filling’ versus ‘cost of fall’ form a basis in deciding the site of a fall in case of the main canal.