A gravity dam is called:
1
A low dam if the maximum allowable stress at the base controls the base width.
2
A low dam if the base width controls from the consideration of the resultant falling as close as possible to the extremities of the middle third of the base.
3
A high dam if the base width controls from the consideration of no tension anywhere in the beam.
4
A high dam if its height is greater than 100 meters.