Plans for a new interstate bridge are running into questions from Oregon lawmakers.  20 House members, both Republican and Democrat, have signed on to a letter of concern. “We need to make sure that the assumptions that we make for financing of the $4-billion project, that those assumptions are fundamentally correct. And I think that there’s enough question right now, that they’re just simply not.” Republican Katy Brewer says it's not clear to her whether it's a bridge project or a light rail project that happens to include a bridge.