Consider the following statements with respect to weir under discussion:
1. Its design corresponds to soft sandy foundation.
2. The difference in weir crest and downstream river bed may not exceed 3 m
3. When water passes over it, the longitudinal location of the formation of a hydraulic jump is variable.
This weir is of the type
1
Vertical drop weir
2
Masonry or concrete sloping weir
3
Dry stone slope weir
4
Parabolic weir