Catch Basin
Catch Basin
(OP)
I see that most standards state to slope the inside of a catch basin at 1:12 (8.33%) minimum towards the outlet pipe. Has anyone seen a deviation from this?
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RE: Catch Basin
Type 1 which is small, (18" square or so) or a Manhole that is anywhere from 48" to 72" in diameter, or a precast concrete vault?
In general, for storm, the bottom slopes will be flat for the small CB's and Manholes. However, for sanitary sewers, although the minimum line slope is at 0.5%, the bottom side slopes perpendicular to the trench within the Manhole are greater. Is this the slope you are referring to?
Mike McCann
MMC Engineering
RE: Catch Basin
RE: Catch Basin
RE: Catch Basin
RE: Catch Basin
Hydrology, Drainage Analysis, Flood Studies, and Complex Stormwater Litigation for Atlanta and the South East - http://www.campbellcivil.com
RE: Catch Basin