Compute using the Rational Method, the diameter of an outfall sewer required to drain stormwater from the watershed in described in Figure 1. Figure 1 gives the lengths of the Land Drainage Sewer (LDS) lines, drainage areas, and inlet times. Assume a composite runoff coefficient of 0.30 for the entire area. Use the five –year City of Winnipeg IDF Curve and a flowing full velocity of 0.75 m/s in the storm sewers.

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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Compute using the Rational Method, the diameter of an outfall sewer required to drain stormwater from the watershed in described in Figure 1. Figure 1 gives the lengths of the Land Drainage Sewer (LDS) lines, drainage areas, and inlet times. Assume a composite runoff coefficient of 0.30 for the entire area. Use the five –year City of Winnipeg IDF Curve and a flowing full velocity of 0.75 m/s in the storm sewers.

 

 

 

Area 2
0.032 km²
Inkel time
= 5.0 min
Area 1
0.016 km
Imet time = 5.0 min
Mannale 1
120 m
sewer
Inlet
BOE Manhole 2
180 m
sewer
Areas 3
D.024 km²
Inlet time- 8.0 min.
Most
remote
point
Manhole 3
Discharge
Transcribed Image Text:Area 2 0.032 km² Inkel time = 5.0 min Area 1 0.016 km Imet time = 5.0 min Mannale 1 120 m sewer Inlet BOE Manhole 2 180 m sewer Areas 3 D.024 km² Inlet time- 8.0 min. Most remote point Manhole 3 Discharge
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