The flows have been shut off through the Hyatt Powerhouse at the base of Oroville Dam, and the lake is beginning to rise. And that’s all by design, according to the state Department of Water Resources. The flows were shut down about 10 p.m. Wednesday and hadn’t resumed as of Thursday afternoon. But hours-long cutoffs have been occurring since March 8. Since March 15, water has been released for a few hours in the morning and a few hours in the evening but the penstocks in the powerhouse have been closed off for the rest of the day.