- "Fun" facts from the OD study: about 69% of bridge traffic has an origin/destination within Superior, and about 63% has an origin/destination within the Duluth core. Just under 1/4 of bridge traffic has an origin/destination along US 53 (or US 2) south (east) of WI 13.
This is precisely why a cross-town freeway/Interstate across Superior isn't going to happen anytime soon, if ever. US-2/53 spends a lot of time on city streets in Superior, but it's not congested. To build a freeway that didn't obliterate much of Superior would require a minimum of a 20-mile southerly bypass of Superior to tie into I-35, and more like 35 miles if it eventually ties back into US-53 somewhere. That makes no sense when there's comparatively little through traffic to begin with.
The only real problematic portion of US-2/53 is through Allouez, where a 4-lane truck route is jammed into a footprint so narrow there's barely room for sidewalks, and trucks rumble at 35 mph within 10 feet of some living room windows. I would argue taking property on one side of the street or the other for a wider boulevard would end up being a net positive as it would allow more space to separate pedestrians, cars, and residential spaces.
Otherwise, though, there's nothing wrong with US-2/53 as-is.