12-meter Sediment Recirculating Hydraulic Channel

The 12-meter long sediment recirculating hydraulic channel was designed and installed in 1993. The channel is used to study:

  • sediment transport in rivers with free surface conditions
  • scour around bridge piers in ice-covered channels
  • woody debris hydraulics, and
  • hydraulics of vegetated channels.

The channel is 0.45-meters wide and 0.6-meters deep. The flow rate can vary between 0 and 0.06 cms. The slope of the channel can be adjusted between 0.01% and 4.5%. Water level at the downstream boundary is controlled by a vertical sluice gate. Sediment is recirculated in the channel by means of a slurry pump connected to a floor trap at the downstream end of the channel. The slurry is pumped to the upstream end of the channel and pumped to the upstream end of the channel.

Sediment transport under large woody material jam experiment.
Large woody material jam.