Red Bluff Diversion Dam

Red Bluff Diversion Dam

Background:

The Tehama-Colusa Canal Authority required a 500 cfs (323 MGD; 50,970 m³/h) emergency pumping plant to supply water to its irrigators after use of a major diversion dam was restricted due to permitting issues involving state and federally protected Chinook and Coho Salmon, Steelhead, and Sturgeon. The emergency pumping plant required 1,500 ft² (139 m²) of screens screen surface area to meet the 0.33 fps (10 cm/s) approach velocity requirement with only 3 feet (0.9 m) of water depth available. The diversion also needed to be designed, fabricated, and installed in less than four months.

The final project used a piled structure to support 10 shallow intake plenums, the pump columns, and the cone screens. The cone screens system included 10 C168-48HA screens, each measuring 14 feet (4.3m) in diameter and 4-feet (1.2 m) high and equipped with a hydraulic drive brush cleaning system to meet the project needs.

Benefit of ISI System

ISI worked with the client's engineering firm, the pump manufacturer, and the fisheries agencies to develop a design-build solution that went from design to installation in less than 3 months and without interruption to operations. ISI's conical shaped screen enabled this shallow water diversion to meet fish protection criteria by placing a large screen surface area in a relatively small project footprint.

Owner:

Tehama-Colusa Canal Authority

Engineer(s):

CH2M Hill

General Contractor:

Galindo Construction Corporation and Rain for Rent

Location:

Sacramento River, Red Bluff, CA