Device, to prevent water exit from channel opening at high water, has metal or hard plastics support frame fitted over channel opening and container sealed against ground around channel opening

摘要

The device has a metal or hard plastics support frame (14) that can be fitted over the channel opening (12). The support frame supports a container (16) made of watertight textile or film material. The container is open at the top and extends to the ground and is sealed against the ground around the channel opening. The support frame may be made of vertical stands and longitudinal bars.