Question

When the height of the dam is in between 7.5 to 15, the Strange’s recommended value for maximum freeboard of low earth dams is ______________

(a) 1.2 to 1.5

(b) 1.5 to 1.8

(c) 1.85

(d) 2.1

The question was asked in class test.

I'd like to ask this question from Design Criteria of Earth Dams in section Earthen and Rock Fill Dams of Irrigation Engineering

Answer 1

Right option is (c) 1.85

The explanation: For the height of the dam up to 4.5 m, the maximum freeboard is 1.2 to 1.5 m and for the height range 4.5 to 7.5 m, the maximum freeboard is 1.5 to 1.8 m. If the height of the dam is in between 7.5 to 15 m, the maximum value is 1.85 m.