Shad,
As a relative newcomer, you missed seeing what the Chambers Creek hatchery steelhead program provided over the course of its history. Before the Department started making each basin hatchery develop its own local broodstock, almost all juveniles came from Chambers and South Tacoma as fry. And then they were transferred to the various rearing ponds on the Stilly, Skagit, Sky, Snoqualmie, Green, etc., where they were reared until release. That was the original strategy because Chambers and S. Tacoma have significantly warmer water, which got egg incubation and initial fry rearing off to a faster start, so that the juveniles would reach smolt size by the next spring for release. From the 60s, 70s, and into the 80s, Chambers Creek adults averaged 6 pounds (or larger) for 2-salt fish and 12 pounds for 3-salts. While they weren't as pretty as wild fish, it was hard to tell a hatchery 3-salt from a wild fish except for its stubbed dorsal fin. They have become smaller, along with the reduced marine survival rates. The ocean has become less generous to salmon and steelhead over the past 30 years.