River Science

The State of Salmon in California: Challenged

The State of Salmon in California: Challenged

Chinook, coho, and steelhead once thrived within California’s rivers and streams. The last number of decades, though, have born witness to a significant decline in their populations. This decline is attributed to a culmination of factors including water damming and diversions, habitat degradation, the impacts of climate change, and persistent drought conditions. Regrettably, this decline has led to the complete disappearance of these species from numerous streams. 

Hallwood Side Channel and Floodplain Restoration Project Enters Phase Four

Hallwood Side Channel and Floodplain Restoration Project Enters Phase Four

The Hallwood Side Channel and Floodplain Restoration Project is designed to enhance the lower Yuba River ecosystem by increasing available juvenile salmon habitat to improve the natural production of Chinook salmon and Central Valley steelhead. The project will also reduce flood risk through lower water surface elevations and velocities during flood events