Over the following decades, environmental advocates clashed with “industrial interests” that sought to establish a large port in the area.

That's too long, some lawmakers and environmental advocates say.

After the toll ring was closed in 2005 some politicians, environmental advocates and others have suggested reintroducing the toll ring.

And some fish and environmental advocates see this case as an important precedent for dam removals to restore free flowing rivers.

Environmental advocates and industry officials welcomed the new program, but for different reasons.