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Army Corps rates Oroville levee "low risk" but flags vulnerable Bedrock Park reach, recommends geotech and emergency planning
Summary
The U.S. Army Corps of Engineers told Oroville's City Council its May 2025 levee review places the system in a "low risk" category while identifying a critical, narrow reach near Bedrock Park that needs geotechnical study and possible structural work; the Corps recommended prioritized repairs, an emergency action plan and coordination with DWR updates.
The U.S. Army Corps of Engineers presented a voluntary levee safety review to the Oroville City Council, concluding the city's levee system rates as "low risk" overall but contains a critical vulnerable section near Bedrock Park that merits targeted investigation and repair.
Michael Gonia of the Corps's Levee Safety Center told the council the assessment looks at hazard, performance and consequences, and relies primarily on existing studies and a May 2025 field visit. "Bottom line upfront: when we look at the levee risk category, we came up with that this is a low risk levee system," Gonia said, while noting a specific reach with narrow geometry, steeper slopes and signs of past seepage.
The Corps highlighted three reasons for the lower overall ranking: local emergency planning and evacuation history, flow moderation from Oroville Dam upstream, and…
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