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IC) What method do we use to calculate runoff for storm sewer design? Calculate the total runoff entering pipe a pipe given: Total area draining to the pipe is 1.87 acres; the runoff coefficient for that area is 0.38; tc for the area draining directly into the pipe is 10.2 minutes; tc for the area draining into the preceding pipe is 9.8 minutes; travel time in pipe the preceding pipe is 0.6 minutes. Assume central New Jersey as the location. Using Method, Qp was calculated to be cfs

IC) What method do we use to calculate runoff for storm sewer design? Calculate the total runoff entering pipe a pipe given: Total area draining to the pipe is 1.87 acres; the runoff coefficient for that area is 0.38; tc for the area draining directly into the pipe is 10.2 minutes; tc for the area draining into the preceding pipe is 9.8 minutes; travel time in pipe the preceding pipe is 0.6 minutes. Assume central New Jersey as the location. Using Method, Qp was calculated to be cfs

Solid Waste Engineering
Solid Waste Engineering
3rd Edition
ISBN:9781305635203
Author:Worrell, William A.
Publisher:Worrell, William A.
Chapter8: Landfills
Section: Chapter Questions
Problem 8.10P
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IC) What method do we use to calculate runoff for storm sewer design? Calculate the total runoff entering pipe a pipe given: Total area draining to the pipe is 1.87 acres; the runoff coefficient for that area is 0.38; tc for the area draining directly into the pipe is 10.2 minutes; tc for the area draining into the preceding pipe is 9.8 minutes; travel time in pipe the preceding pipe is 0.6 minutes. Assume central New Jersey as the location. Using Method, Qp was calculated to be cfs ID) Find the max capacity for the following pipes and determine if they can safely handle a Qp of 3.4 cfs. All pipes are reinforced concrete with n = 0.015. - 12" diameter pipe at a 1% slope has a capacity of - 15" diameter pipe at a 1% slope has a capacity of - 18" diameter pipe at a 0.4% slope has a capacity of - 21" diameter pipe at a 0.05% slope has a capacity of ft/s ft/s cfs and cfs and cfs and cfs and safely handle Qp safely handle Qp safely handle Qp safely handle Qp IE) Check if the following outfall needs erosion protection. Show your work/results to justify your answer. Soil type is a clay loam; Design discharge is 1.75 cfs; Slope of the pipe leading to the outfall is 0.4%; Outfall diameter is 1.25ft Allowable velocity Design velocity
Transcribed Image Text:IC) What method do we use to calculate runoff for storm sewer design? Calculate the total runoff entering pipe a pipe given: Total area draining to the pipe is 1.87 acres; the runoff coefficient for that area is 0.38; tc for the area draining directly into the pipe is 10.2 minutes; tc for the area draining into the preceding pipe is 9.8 minutes; travel time in pipe the preceding pipe is 0.6 minutes. Assume central New Jersey as the location. Using Method, Qp was calculated to be cfs ID) Find the max capacity for the following pipes and determine if they can safely handle a Qp of 3.4 cfs. All pipes are reinforced concrete with n = 0.015. - 12" diameter pipe at a 1% slope has a capacity of - 15" diameter pipe at a 1% slope has a capacity of - 18" diameter pipe at a 0.4% slope has a capacity of - 21" diameter pipe at a 0.05% slope has a capacity of ft/s ft/s cfs and cfs and cfs and cfs and safely handle Qp safely handle Qp safely handle Qp safely handle Qp IE) Check if the following outfall needs erosion protection. Show your work/results to justify your answer. Soil type is a clay loam; Design discharge is 1.75 cfs; Slope of the pipe leading to the outfall is 0.4%; Outfall diameter is 1.25ft Allowable velocity Design velocity
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