Well it's not done by WDFW. The people that have the power house or what ever is there at the base of the Falls do the trucking so I guess that it would be Puget Power that does the trucking. But As to what or when is another thing.
But finding that out would be like cheating. It is more fun to hunt them down and seek them out. Besides there are some big steelhead in the river in the summer time and I have seen a few of them but not lucky enough to catch them.
Well I might have to argue with you on this a little. This last fall The WDFW asked the people that were trucking the fish up river to please give them any steelhead and those people doing the trucking said NO. So what I heard might be true and again it might not be. So who are you supposed to believe. I got this off a web site and no I don't remember which one.