(a) Determine the area of the watershed to which this unit hydrograph corresponds. Report your answer in acres. (b) Assume a very intense 3-hour storm occurs shortly after a rainy period, so the ground is very saturated. The runoff from the first one-hour interval of the storm totals 0.5 in., the runoff from the second one-hour interval is 2.5 in, and the runoff from the third one-hour interval totals 1.7 in. The baseflow during and after the storm is 80 cfs. Derive the storm hydrograph for this 3-hour storm. Provide a table that clearly indicates how you used the unit hydrograph, sample calculations with sufficient explanation, explanatory sketches, and a graph of the storm hydrograph. ) Determine the peak discharge that will occur in the river if this 3-hour storm ccurs.

(a) Determine the area of the watershed to which this unit hydrograph corresponds. Report your answer in acres. (b) Assume a very intense 3-hour storm occurs shortly after a rainy period, so the ground is very saturated. The runoff from the first one-hour interval of the storm totals 0.5 in., the runoff from the second one-hour interval is 2.5 in, and the runoff from the third one-hour interval totals 1.7 in. The baseflow during and after the storm is 80 cfs. Derive the storm hydrograph for this 3-hour storm. Provide a table that clearly indicates how you used the unit hydrograph, sample calculations with sufficient explanation, explanatory sketches, and a graph of the storm hydrograph. ) Determine the peak discharge that will occur in the river if this 3-hour storm ccurs.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

Problem 3
The table below contains the data for a one-hour unit hydrograph.
Time
Q
(hr)
(cfs/in)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0
145
246
359
979
432
246
134
65
32
0
(a) Determine the area of the watershed to which this unit hydrograph corresponds.
Report your answer in acres.
(b) Assume a very intense 3-hour storm occurs shortly after a rainy period, so the
ground is very saturated. The runoff from the first one-hour interval of the storm
totals 0.5 in., the runoff from the second one-hour interval is 2.5 in, and the runoff
from the third one-hour interval totals 1.7 in. The baseflow during and after the
storm is 80 cfs. Derive the storm hydrograph for this 3-hour storm.
table that clearly indicates how you used the unit hydrograph, sample calculations
Provide a
with sufficient explanation, explanatory sketches, and a graph of the storm
hydrograph.
(c) Determine the peak discharge that will occur in the river if this 3-hour storm
occurs.

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