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    Wednesday, May 20, 2009

    Effectiveness of Catch Basin Screen Covers

    An interesting conversation is taking place over at the LAist regarding the utility of catch basin screen covers. If you are not familiar with the catch basin screen covers, they are essentially screens placed over storm drains intended to allow water, but not the accompanying trash runoff, to flow down the storm drains. Although these are certainly an improvement, our observation has been that the trash tends to accumulate around the screens and is rarely swept up properly by the street sweepers.

    The city of Los Angeles has installed a number of these screen covers, focusing particularly on the neighborhoods of Silver Lake, East Hollywood, Echo Park and other high-trash areas.

    Has anybody come across any places where these screens are particularly effective? Is there anyway that we could improve upon the screens or make them more effective?

    1 comment:

    1. When installing catch basin filters on new sites, the owner of the property has to sign a maintenance covenant generally cleaning the filters out after major storms or quarterly so they don't become a nuisance. Most new commercial building projects or sites over an acre require all onsite water to be cleaned before hitting the storm drain. That whole idea seems pointless if the street drains aren't properly taken care of.