I'm curious. What makes you think it was a problem with snagging? The state only controls a small piece on the Salmon & none of the Queets. There was no water until recently. I never fished the Clearwater so I have no input on that.
Could it be possible that the tribe who nets the Queets is the issue and they netted way more fish than anticipated? It wouldn't be the 1st time. The Queets has had a hard time meeting Coho escapement goals for years yet they keep on netting.
Once the rivers go up snagging usually diminishes.