Patent ID: 6379541
Filing Date: 2002-04-30
Classification: E03F,Y02A

Abstract:
A stormwater litter trap comprising an apertured flume disposed at a downstream end of a stormwater outlet so as to direct the discharge from a stormwater pipe or other drainage outlet through a gradual confining shape transition and a gradual rise in elevation towards the discharge end of the flume, and an apertured collection container disposed adjacent the discharge end of the flume, wherein the flume is provided with an apertured top cover which is hinged in relation to said flume and is normally closed but is adapted to open if the volume of stormwater exceeds a predetermined level to release accumulated stormwater, and to close again when the flow of excess stormwater subsides, whereby the flowing stream of stormwater containing litter discharging from the stormwater pipe or outlet during or after a storm event is channeled via said flume whereby the litter is urged under the influence of the flowing stream towards the collection container and the litter is screened from the water via said flume and collected in said collection container at a position which is separate from and free-draining in relation to said flowing stream of stormwater, and screened water is channeled away from said trap.