Overflow water from the Sacramento River can make its way through the gates of the weir, but when water levels at the I Street Bridge reach 29.87 feet the gates of the weir are opened.

Rookwood Weir, located on the lower Fitzroy River about 66 km southwest of Rockhampton, was built to provide a consistent water supply to meet urban, agricultural and industrial needs in the ...

Whenever water in Sacramento River exceeds the height of Fremont Weir, the excess flow runs into the lower Yolo Bypass floodway, reducing the risks of flooding Sacramento.