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Salmon Return: River's Thirst Quenched After Decades
27 Jul
Summary
- A major restoration effort aims to revive salmon populations.
- Friant Dam's construction in the 1940s severely impacted river flows.
- A 2006 settlement launched the San Joaquin River Restoration Program.
For decades, the San Joaquin River's cold mountain waters, crucial for Chinook salmon and local ecosystems, were redirected for agriculture after Friant Dam's construction in the 1940s. This significantly altered the river's flow and habitat.
A legal battle initiated in 1988 ultimately led to a settlement in September 2006, bringing together environmental groups, agricultural users, and federal agencies. This agreement paved the way for the San Joaquin River Restoration Program, formally established by Congress in March 2009.
The program focuses on restoring fish populations, particularly spring-run Chinook salmon, while minimizing impacts on agricultural water supplies. This involves carefully managing water releases to rehydrate previously dry sections of the river between Friant Dam and the Merced River confluence.
Five state and federal agencies, including the Bureau of Reclamation and NOAA Fisheries, share responsibility for the program's success. Their collaborative efforts encompass scientific research, habitat restoration, and population monitoring to guide decisions and adapt to changing conditions.
In 2013, the experimental reintroduction of Central Valley spring-run Chinook salmon began under the Endangered Species Act. An important milestone occurred when adult salmon returned to the river after a 60-year absence, signaling progress toward establishing a self-sustaining population.
