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4. The peak of flood hydrograph due to a 3-h duration isolated storm in a catchment is 270 cumecs, Total depth of rainfall is 5:9 cm. Assuming an average infiltration loss of 0:3 cm/h and a constant base flow of 20 cumecs, estimate the peak of 3-h unit

4. The peak of flood hydrograph due to a 3-h duration isolated storm in a catchment is 270 cumecs, Total depth of rainfall is 5:9 cm. Assuming an average infiltration loss of 0:3 cm/h and a constant base flow of 20 cumecs, estimate the peak of 3-h unit

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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4. The peak of flood hydrograph due to a 3-h duration isolated storm in a catchment is 270 cumecs, Total depth of rainfall is 5:9 cm. Assuming an average infiltration loss of 0:3 cm/h and a constant base flow of 20 cumecs, estimate the peak of 3-h unit AK-21/258 ( Turn Over ) ( 6 ) hydrograph. If the area of catchment is given as 567 sq.km, determine the base width of 3-h unit hydrograph assuming it to be triangular in shape.
Transcribed Image Text:4. The peak of flood hydrograph due to a 3-h duration isolated storm in a catchment is 270 cumecs, Total depth of rainfall is 5:9 cm. Assuming an average infiltration loss of 0:3 cm/h and a constant base flow of 20 cumecs, estimate the peak of 3-h unit AK-21/258 ( Turn Over ) ( 6 ) hydrograph. If the area of catchment is given as 567 sq.km, determine the base width of 3-h unit hydrograph assuming it to be triangular in shape.
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