A fiberglass 2-inch Parshall flume with end adapters and flanges mounted above grade.  A stainless steel frame supports the flume with connection flanges between the flume and the end adapters inserted into the slot of the frame's horizontal struts.

A bolt-down fiberglass cover over the flume minimizes any splashing the flume might experience.  In the cover a hole has been cut out for the ultrasonic sensor beam.