I have an alternate solution. Abandon the dam. Send all the illegal Mexican aliens in and around LA back to Mexico, and tell LA there will be no more water coming from the Oroville dam source. Open floodgates slowly and allow the lake to empty out slowly. Then allow the Feather River to flow naturally through the former Lake Oroville, as it did for thousands of years before the dam. Environmentalists will be happy with this solution. So will taxpayers.
I would mention that while the land where my home is built has not been flooded since the 1880s, it has come close a few times, and it is mostly due to good water management at Oroville that it hasn't been flooded. You might want to re-think the plan if you take me up on the offer.
Problem, the “flood gates” cannot empty the lake - they are too high. One or both of the “drains” are damaged and not working properly. The power station doesn’t flow enough water to drain the lake in time for the next rainy season. Lib management in action.
Who let you in here? Go back to DU or somewhere else that cares about your Unicorns and Pixie Dust.