Stormwater Inlet Grate - Clogging Efficiencies
Stormwater Inlet Grate - Clogging Efficiencies
(OP)
Hello,
I'm curious to know how people determine anticipated stormwater inlet grate efficiencies resulting from grates clogging due to leaves and debris. I assume it is a function of longitudinal slope and inlet location (on a slope versus at a lowpoint).
Any ideas are appreciated!
Thanks,
Derek
I'm curious to know how people determine anticipated stormwater inlet grate efficiencies resulting from grates clogging due to leaves and debris. I assume it is a function of longitudinal slope and inlet location (on a slope versus at a lowpoint).
Any ideas are appreciated!
Thanks,
Derek





RE: Stormwater Inlet Grate - Clogging Efficiencies
RE: Stormwater Inlet Grate - Clogging Efficiencies
RE: Stormwater Inlet Grate - Clogging Efficiencies
Derek
RE: Stormwater Inlet Grate - Clogging Efficiencies
1. Are you in a "sump"/"sag" condition - if yes, use a higher factor than you would on a continuous grade.
2. You can also look at the tributary area for potential sources of clogging material. I use higher factors where big-leaf maples drop leaves on the street than when the vegetation is conifer, for example. Also, if you see trash/debris in the gutter or along the sidewalk like occurs in certain neighborhoods, that is a clue to apply a higher clogging factor.
3. Vaned grate inlets are generally less clog-prone than "flat" grates.