I got a chuckle out of this image:
oroville – Water flows through the Hyatt Powerplant under Oroville Dam were increased to the plant’s maximum discharge rate Thursday, giving water officials another avenue to get water out of the reservoir outside of the damaged main spillway.
Bill Croyle, acting director of the state Department of Water Resources, said releases through the hydroelectric plant would reach about 13,000 cubic-feet per second by Thursday evening.royle said officials anticipate using the main spillway again around March 17, when the lake level reaches about 865 feet. He said the goal is to delay to use of the main spillway as long as possible to help with the ongoing removal of debris below that chute.
He stressed that if officials need to use the main spillway earlier, they will. Once in use again, flows down the main spillway will be set at a rate of about 40,000 cfs. That would be in addition to the 13,000 cfs flowing through the power plant.
I was intending on using the scaffolding angle as a vertical reference for the drain line angle determination. Turns out, the scaffolding is a few degrees off. So I resorted to using two references of workers’ balance in the tilt. They turned out to be more accurate. IN the image you can see a white painted bar line on the wall. That white painted bar line is accurate to vertical. From that, you can see how the scaffolding is tilted slightly to the right in comparison.