Breakthrough Channel

Breakthrough Channel

 

an opening formed during a breakthrough by a stream of water under a head in a hydraulic engineering installation constructed of local materials, such as a dike or earthen dam.

References in periodicals archive ?
The three most common are broken nozzles, breakthrough channels (also referred to as "sand boils," "jet action," or "gulfstreaming") through the media, and loss of media through seams or breaks in the underdrain.