Oroville Dam spillway devastation, ruined hillside, clogged river revealed after water flow is stopped
The California Department of Water Resources is advising the public of increased outflows to the Feather River near Oroville Dam.
Water flow was expected to rise from 11,000 to 13,000 cubic feet per second beginning Saturday afternoon, with additional releases expected in the following week. The increase prompted DWR officials to advise people to steer clear of the waterway.
On Sunday, outflows from the Hyatt Power Plant were at 12,900 cubic feet per second. The department has been releasing water to the Feather River through the Thermalito Diversion Dam and the Thermalito Afterbay outlet to meet environmental requirements.
Lake Oroville rose from an elevation of 860.5 feet on Saturday to 860.9 feet on Sunday as inflows of about 13,000 to 19,000 cubic feet per second outpace the outflow, the DWR said in a press release Sunday.
As of Sunday, crews working around the clock had cleared about 990,000 cubic yards of sediment and debris clogged in the river underneath the Oroville Dam’s fractured spillway.