A rainfall hyetograph is provided for a 6-hour storm event, which occurred over a watershed with an area of 2100-acres (Ac). If the Phi-index is 0.71 in/hr, calculate the volume of runoff (VRO) from the storm (in Ac-ft). Report your answer to the nearest tenths (0.1) place. HINT...the answer should be around the 500-1,500 Ac-ft range (yes, it is a big range if you need to guess). Intensity (in/hr) 2.5 2.0 1.5 1.0 0.5 0.0 0 M 1 2 3 4 Time (hr) 5 6 7 M 2√
A rainfall hyetograph is provided for a 6-hour storm event, which occurred over a watershed with an area of 2100-acres (Ac). If the Phi-index is 0.71 in/hr, calculate the volume of runoff (VRO) from the storm (in Ac-ft). Report your answer to the nearest tenths (0.1) place. HINT...the answer should be around the 500-1,500 Ac-ft range (yes, it is a big range if you need to guess). Intensity (in/hr) 2.5 2.0 1.5 1.0 0.5 0.0 0 M 1 2 3 4 Time (hr) 5 6 7 M 2√
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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
Transcribed Image Text:A rainfall hyetograph is provided for a 6-hour storm event, which occurred over a
watershed with an area of 2100-acres (Ac). If the Phi-index is 0.71 in/hr, calculate
the volume of runoff (VRO) from the storm (in Ac-ft). Report your answer to the
nearest tenths (0.1) place. HINT...the answer should be around the 500-1,500 Ac-ft
range (yes, it is a big range if you need to guess).
Intensity (in/hr)
2.5
2.0
1.5
1.0
0.5
0.0
0
1
2
3
4
Time (hr)
5
6
7
2
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