Connecting the Great Lakes to the Atlantic Ocean in HOI4

[Sovetskysoyuz]

Having Chicago as a shipyard/port on the great lakes with access to the Atlantic will elevate its importance in a way that is not reflected in HOI3.

The whole point of building the Seaway was that until it was constructed, the Great Lakes ports could not send ocean-going surface ships down the St Lawrence River, and ocean-going surface ships from the Atlantic could not go above Montreal on the St. Lawrence. Chicago's importance as a port was for Great Lakes shipping at the time.

 

[Klausewitz]

Well, sure.
If Paradox has done all the important changes why not the American equivalent of the Kiel Kanal.

 

[raspel]

It can work not just with Great Lakes or Mississippi, but with all major rivers. May be special river zones, not allowed for big ships. Soviet Union used river flotillas on Dnieper or Danube, for example. Also, several submarines were build in Gorkiy (now Nizhniy Novgorod).