Managing & Protecting California’s Water Resources
The Department of Water Resources (DWR) is responsible for managing and protecting California’s water resources. DWR works with other agencies to benefit the State’s people and to protect, restore and enhance the natural and human environments.

DWR Opens Sacramento Weir for First Time in Over a Decade
DWR engineers opened a number of the Sacramento Weir gates to direct water through the Sacramento Bypass and into the Yolo Bypass early on January 10, 2017. Weir gates were opened based on forecasted conditions indicating the amount of water heading down the Sacramento River could overtop riverbanks in the urban areas of Greater Sacramento. The Sacramento Weir has been in operation for 100 years. Nearly 2,000 feet in length, it consists of 48 gates that are removed manually to allow water to spill from the Sacramento River. Learn more about Sacramento River Flood Protection System Weirs and Flood Relief Structures.

View photos of today’s opening of the Sacramento Weir, as well as historic photos, in our gallery.

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