What color is the sky in your world? Niether Cheif Joseph Dam or Grand Coulee Dam have fish ladders which effectively cut the Columbia River Salmon run by 50% right off the top!!!!!!!!!!!The record number of returning fish is compared to relatively recent counting measures, but is pale in comparison to Salmon runs in the past that I remember in my lifetime(44 years).Dam passage as my brother's above pointed out is the "least" of the problems the Dams create.72 degree water is not condusive to healthy fish along with a host of introduced preditory fish that thrive on smolt.STS magazine had an article in it written by Buzz Ramsey that had actual adult equivalent numbers of fish mortality directly related to dams and it was around 80%.The "record" number of fish you are talking about are mainly hatchery fish and shoudn't be counted as actually part of the return to compare with non-hatchery years.Don't get me started.......lester