The Seattle federal court decided in favor of treaty tribes in Western Washington in the so-called “Culvert Case.” From the decision:

The Court hereby declares that the right of taking fish, secured to the Tribes in the Stevens Treaties, imposes a duty upon the State to refrain from building or operating culverts under State-maintained roads that hinder fish passage and thereby diminish the number of fish that would otherwise be available for Tribal harvest. The Court further declares that the State of Washington currently owns and operates culverts that violate this duty.

Here is a pdf of the decision.