The area of a watershed is 0.875 square miles, where the runoff volume is 188 ac-ft....

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The area of a watershed is 0.875 square miles, where the runoff volume is 188 ac-ft. The o index value of this storm is equal to? (You need some trial and error to find the answer). Note: 1 sq miles 640 ac (8 points) Rainfall (in) 76543210 6.4 2 4 Time (hr) 6 The area of a watershed is 0.875 square miles, where the runoff volume is 188 ac-ft. The o index value of this storm is equal to? (You need some trial and error to find the answer). Note: 1 sq miles 640 ac (8 points) Rainfall (in) 76543210 6.4 2 4 Time (hr) 6

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To find the index value of the storm we need to calculate the runoff coefficient C first The runoff ... View the full answer