Red Bluff Diversion Dam

A concrete gravity diversion dam on the Sacramento River, built in 1962–1964 for irrigation. It is formally decommissioned, and its gates are now left open year-round so the river can flow freely through the site, a change driven by long-running fish-passage problems for salmon and other migratory fish. ([en.wikipedia.org](https://en.wikipedia.org/wiki/Red_Bluff_Diversion_Dam)) - **Notable detail:** 11 large gates once formed Lake Red Bluff for gravity diversion. ([usbr.gov](https://www.usbr.gov/projects/index.php?id=244&utm_source=openai)) - **Why it remains:** irrigation diversion was shifted to pumping-based solutions rather than immediate total demolition of the structure. ([usbr.gov](https://www.usbr.gov/mp/TFFIP/red-bluff.html?utm_source=openai)) - **Further information:** - https://www.usbr.gov/projects/index.php?id=244 - https://www.usbr.gov/mp/TFFIP/red-bluff.html

Sacramento River near Red Bluff, Tehama County, California, USA