HSWPE 2

HSWPE 2 

As impounding reservoir had an original storage capacity of 738 ha-m. The drainage area of the reservoir is 80 sq. km. from which, annual sediment discharges into the reservoir at the rate of 0.1153 ha-m per sq. km. of the drainage area. Assuming the trap efficiency as 80 percent, find the annual capacity loss of the reservoir in percent per year.

ANS 

Given

Reservoir capacity = 738 ha-m

Drainage area = 80 sq.km

Annual sediment discharge = 0.1153 ha-m per sq.km

Trap efficiency = 80% = 0.80

We know

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