HomeMy WebLinkAboutDrainage report Westminster Lift Station Driveway
Culvert Capacity Calculations
Job No. 7066
The existing Upstream 18" Culvert Flow drains into a 24" culvert that crosses
FM 2154 approximately 125' north of the driveway location.
Proposed 18" Culvert Flow Calcs
Flow(cfs)
1 Barrel Slope
7.42 0.0050
Downstream 18" Culvert Flow Calcs
Flow(cfs)
1 Barrel Slope
7.42 0.0050
Check That the Proposed Culvert Can Carry The 100yr Flow
Excess Capacity= (Roadside Ditch Flow) - (Proposed Culvert Flow)
= 7.24 cfs
= 0.18 cfs
100 yr Flow to Proposed 18" Culvert= 7.24 cfs
Proposed Flow> Existing Flow
The Proposed 18"Will Carry the 100yr Flow.
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