The Cosumnes River Flow Augmentation Project supplements the flow of the Cosumnes River by releasing up to 5,000 acre-feet of water into the Cosumnes from the Folsom South Canal. The project objectives are listed below.
RBI assisted the Southeast Sacramento County Agricultural Water Authority and The Nature Conservancy in negotiating an agreement with the Sacramento County Water Agency for a long-term water supply for the project. RBI also manages the implementation of the project.
In 2005, the Pilot Project Phase was implemented with a temporary water supply from the Central Valley Project - B2 Environmental Water Program. The Pilot Project demonstrated that it is possible to mimic historical river conditions by releasing supplemental flows into the Cosumnes River from the Folsom South Canal. These conditions supported a more successful fall migration of chinook salmon to the spawning areas at the base of the Sierra foothills.
RBI will manage the long-term annual implementation of the Flow Augmentation Project on behalf of the SSCAWA, SCWA and TNC. The project will allow biologists, scientists, and water managers to improve: