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Stony Gorge Dam Safety Modification EA
Risk studies performed in 2001 under Reclamation's Safety of Dams Program identified a need for structural improvements at Stony Gorge Dam to better enable the facility to withstand seismic loading during an earthquake. Located about 20 miles west of the town of Willows, Stony Gorge Dam is a 139-foot high buttress style dam that regulates flows along the lower reaches of Stony Creek and stores about 50,000 acre-feet of water for irrigation purposes.

Draft environmental assessment released to public for 30-day review on December 22, 2004. FONSI signed January 31, 2005. Supplemental EA prepared and FONSI signed March 12, 2006.

No Contacts at this time.
List of Available Reports
Report Title
File Ext
File Size
File with .pdf extension Figure 1, Stony Gorge Draft EA .pdf 91.41KB 
File with .pdf extension Figure 2, Stony Gorge Draft EA .pdf 90.48KB 
File with .pdf extension Figure 3, Stony Gorge Draft EA .pdf 89.52KB 
File with .pdf extension Final EA/FONSI, Stony Gorge .pdf 311.43KB 
File with .pdf extension Stony Gorge Draft EA .pdf 277.72KB 
File with .pdf extension Supplemental Final EA/FONSI, Stony Gorge .pdf 84.32KB