1.Determine the weighted curve numbers for a watershed with 40 percent residential (1/4-acre lots), 25 percent open space, good condition, 20 percent commercial business (85 percent impervious), and 15 percent industrial (72 percent impervious), with corresponding soil groups of C,D, C, and D. If the watershed experienced a rainfall of 6in, what is the runoff volume? Determine the weighted curve numbers for a watershedwith 40 percent residential (1/4-acre lots), 25 percentopen space, good condition, 20 percent commercialbusiness (85 percent impervious), and 15 percentindustrial (72 percent impervious), with correspondingsoil groups of C,D, C, and D. If the watershedexperienced a rainfall of 6in, what is the runoff volume?

● Here in this question we have to solve the value of runoff voluma and also have to determine the…

1.Determine the weighted curve numbers for a watershed with 40 percent residential (1/4-acre lots), 25 percent open space, good condition, 20 percent commercial business (85 percent impervious), and 15 percent industrial (72 percent impervious), with corresponding soil groups of C,D, C, and D. If the watershed experienced a rainfall of 6in, what is the runoff volume

1.Determine the weighted curve numbers for a watershed with 40 percent residential (1/4-acre lots), 25 percent open space, good condition, 20 percent commercial business (85 percent impervious), and 15 percent industrial (72 percent impervious), with corresponding soil groups of C,D, C, and D. If the watershed experienced a rainfall of 6in, what is the runoff volume

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter16: Highway Drainage

Section: Chapter Questions

Problem 10P

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Problem 3.24 (page 119): The soil in a watershed has the following properties: 0, = 0.02, 0fe= 0.25, and 0 = 0.38. The watershed has a composite ARC II curve number of CN 80. A storm with a rainfall of 30 mm occurs in dormant season. During the five days before the storm begins, the total rainfall is 25 mm. Estimate the direct runoff from this storm using the MORE and SCS-CN models. %3D %3D %3D
Calculate the runoff from a watershed of (0.01 x 4737) ha. The following data are available: Depth of rainfall is 100 mm. Antecedent rainfall condition, AMC 1: Row crop, good condition in 40 ha (Soil group C) Woodland, good condition in 20 ha (Soil group B) The day after the rainfall of 100 mm, another rainfall of 50 mm occurred. Solve for the surface runoff from the watershed. [ NOTE: Where R is the last four digits of your Registration Number. R = 4737 ]
What would the runoff be if a 3 acre watershed got 10 in/hr rainfall and an average c coefficient of 0.4?
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A 220-acre watershed is comprised of 2 distinct areas: 40% cultivated, flat land- tight day 50% cultivated, flat land-sandy loam. The time for concentration in this watershed has been found to be 90 minutes. Water flows to the center of the two drainage areas, not across both. Determine the runoff rate of this area for the 10-year storm?
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