[DevdogAZ]

If there is anywhere in the central part of the valley where widening would actually not be that difficult, this is it. Most businesses are set back quite a ways from the freeway in that area, plus there's the cargo section of the airport, and the Salt River Bed. There just wouldn't be that much that would have to be moved.

As for the next phase they discussed for the I-17 to 202 section, I'm not sure how they're going to do that. They'd have to widen the tunnel, and I don't know if there's room for any additional lanes in that canyon. Widening the excavated portion of that section of the freeway would take lots of residential development that borders the freeway on both sides.