Using a variety of water supplies available, our fisheries testing and fish holding facilities can accommodate large numbers of freshwater, brackish water, and marine species for long periods in closed recirculating water systems.
One test apparatus is an 80-ft long, 6-ft deep, 6-ft wide recirculating flume. Velocities up to 3 ft/sec can be achieved over the full cross-sectional area. Typically, this flume is used for evaluating individual technologies testing species at a time.
We also maintain an even larger-scale fish testing facility comprising a recirculating flume in which we can install and evaluate fish protection technologies. The testing apparatus is 110 ft long, 20 ft wide, and 17 deep, and is located within a 10,000 square foot building. Two, 66-inch diameter bow thrusters, with a combined capacity of 500 ft3/s, move water through the test section. The area of the flume in which testing is conducted is about 80 ft long, 20 ft wide, and 10 ft deep. With an 8-ft water depth, the bow thrusters can provide a 3-ft/s test velocity over the entire 20-ft flume width. However, with a contraction installed, velocities up to 9 ft/s have been achieved.
The test flume has a 300,000 gallon storage tank with transfer pumps that convey water between the storage tank and the test flume. The test flume and storage tank have a water filter system and a large chiller to maintain appropriate water quality for testing with fish.
In addition to the test flumes, a turbine blade strike facility is available.