+1 vote
in Irrigation Engineering by (65.8k points)
Calculate the top width (A) of the earth dam of height 50 m.

(a) 5.0 m

(b) 4.75 m

(c) 6.10 m

(d) 3 m

The question was posed to me in semester exam.

The origin of the question is Design Criteria of Earth Dams in chapter Earthen and Rock Fill Dams of Irrigation Engineering

1 Answer

0 votes
ago by (87.2k points)
Right option is (c) 6.10 m

The best explanation: For dams higher than 30 m, the top width (A) is given by the following formula-

A = 1.65 (H + 1.5)^1/3 where H is the height of the dam.

A = 1.65 (50 + 1.5)^1/3 = 6.13 m.

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