FOLSOM -- The flow out of the Nimbus Dam was increased to 15,000 cubic feet of water per second Wednesday afternoon.
That's about six times more water rushing into the American River compared to the beginning of this week.
The flow is scheduled to more than double on Thursday to 35,000 cubic feet per second.
"The increased releases are based on changing conditions and are necessary to maintain space in Folsom Reservoir for projected Sierra runoff," the Bureau of Reclamation said in a news release. "Current storage in the reservoir is around 158 percent of its 15 year average for December."
Low-lying portions of the American River Parkway will likely be closed Thursday due to flooding, as will the Campus Commons golf course and Discovery Park.
People along the riverbanks between Folsom and Sacramento are urged to seek higher ground.