The rise in water level due to the obstruction caused by bridge construction is called as
- ARunoff
- BHighest flood level
- CFree board
- DAffluxCorrect
Solution
Concept
Afflux
Step-by-step solution
1. Afflux is the rise of water level due to the obstruction.
Explanation
It is caused by the bridge piers.
Why the other options are wrong
Free board is above HFL.
Shortcut
Afflux = heading up.
Correct answer: D) Afflux