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7.23 A 45-min rainstorm occurs on a 9-acre urban area having a runoff coefficient of 0.7. The time of concentration has been calculated as 20 min. Incremental rainfall depths for the storm are given in the table below. Using a spreadsheet, calculate the runoff from the storm at 5-minute intervals. Plot the resulting hydrograph. Time (min) 0 10 15 20 25 30 35 40 45 50 55 60 65 70 Incremental Rainfall Depth (in.) 0 0.1 0.18 0.29 0.6 0.64 0.51 0.3 0.17 0.07 0 0 0 0 0

7.23 A 45-min rainstorm occurs on a 9-acre urban area having a runoff coefficient of 0.7. The time of concentration has been calculated as 20 min. Incremental rainfall depths for the storm are given in the table below. Using a spreadsheet, calculate the runoff from the storm at 5-minute intervals. Plot the resulting hydrograph. Time (min) 0 10 15 20 25 30 35 40 45 50 55 60 65 70 Incremental Rainfall Depth (in.) 0 0.1 0.18 0.29 0.6 0.64 0.51 0.3 0.17 0.07 0 0 0 0 0

Structural Analysis
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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7.23 A 45-min rainstorm occurs on a 9-acre urban area having a runoff coefficient of 0.7. The time of concentration has been calculated as 20 min. Incremental rainfall depths for the storm are given in the table below. Using a spreadsheet, calculate the runoff from the storm at 5-minute intervals. Plot the resulting hydrograph. Time (min) 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 Incremental Rainfall Depth (in.) 0 0.1 0.18 0.29 0.6 0.64 0.51 0.3 0.17 0.07 0 0 0 0 0
Transcribed Image Text:7.23 A 45-min rainstorm occurs on a 9-acre urban area having a runoff coefficient of 0.7. The time of concentration has been calculated as 20 min. Incremental rainfall depths for the storm are given in the table below. Using a spreadsheet, calculate the runoff from the storm at 5-minute intervals. Plot the resulting hydrograph. Time (min) 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 Incremental Rainfall Depth (in.) 0 0.1 0.18 0.29 0.6 0.64 0.51 0.3 0.17 0.07 0 0 0 0 0
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