Question

Consider the following statements:
The general depth of scour calculated by Lacey's formula in a river represents the depth below the:
1. Maximum flood level in the river
2. Minimum flow water level in the river
3. Normal flow water level in the river
4. Existing river bed level
Which of these statements is/are correct?

• A. 1, 2, 3 and 4
• B. 1, 2 and 3 only
• C. 2, 3, and 4 only
• D. 1 only

Answer 1

The correct option is D 1 only

The general depth of scour calculated by Lacey's formula in a river represents depth below maximum flood level.