Lake Oroville Cuts Water Releases by 40% as Runoff Slows
Water is slowing down at one of California’s most important reservoirs.
State officials say outflows from Lake Oroville have been reduced by roughly 40%, dropping from about 5,100 cubic feet per second to 3,000 cfs into the Feather River starting Monday. The shift comes as runoff declines and dry conditions limit incoming water, according to the California Department of Water Resources.
Even with the slowdown, flood-control rules still play a major role in how Oroville is managed. Federal regulations require a portion of the reservoir’s capacity to remain available to capture rain and snowmelt during storms. DWR said the current release schedule balances those requirements while preserving water storage for later in the year.
Lake Oroville remains in strong shape. The reservoir is about 80% full and sitting at 138% of its historical average for this point in the season. As the largest facility in the State Water Project and California’s second-largest reservoir overall, Oroville supplies water and flood protection for roughly 27 million Californians.
Officials emphasized that releases are carefully coordinated with the U.S. Army Corps of Engineers and downstream water managers to ensure river safety and system-wide stability.
For now, lower flows reflect a seasonal transition — and a reminder of how closely California’s water system tracks weather, runoff, and long-term supply planning.
