The trip swap forum was a good suggestion.
The most popular place to shorefish in Minneapolis with chance of success(walleyes) is the Minnehaha Creek – Mississippi River Confluence. It can be quite busy, but the fishing can be decent. Pool 2 and south is the only place you can target walleyes because the regular season isnt open yet, p2 is a catch and release only fishery.
It is a bit of a walk to get down there, lots of stairs. If you want directions there, send me a PM.