juro, I don't think there are any private docks on either lake. It's been a while since I fished them, but i don't remember any. I think there is just a couple of people with lake views that don't want river views. Some may think that the dried up lake bed may be ugly, but when they lowered lake Mills for the geological survey, it only took one summer to have too much vegitation to walk through.
Last cast, I think you could bring fish in from other hatcheries, and I guess I must release several unmarked hatchery steelhead every year. There also must be a few salmon that missed the hatchery last weekend when I was up at the dam.
Native son is correct, a large part of the cost of removing the dams is trucking the silt away. I know my employer is looking forward to leasing any available trucks, and said anyone with a dump and pup could get quite a bit of work from it.