n.1.A cistern or vault at the point where a street gutter discharges into a sewer, to catch bulky matters which would not pass readily through the sewer.
References in periodicals archive ?
Dilks says the site was generally flat but was graded at 1 percent to help direct water away from the piles of recyclable metals and toward the nine catch-basin drains collecting runoff.
To do that, he keeps the total velocity among all the catch-basin drains at less than 2 feet per second.
Other measures include using catch-basin inserts to screen or filter pollutants, telling downtown business owners along Skid Row not to hose vagrants' waste into storm drains and running ad campaigns advising residents to pick up after their pets, lest more bacteria wash into the Los Angeles River.