Calumet Harbor: 3,645 t/day estimated with Chicago Calumet Harbor Sarnia: 663 t/day estimated with Chicago Sarnia Green Bay: 572 t/day estimated with Chicago Green Bay Indiana Harbor: 413 t/day estimated with Chicago Indiana Harbor Duluth: 358 t/day estimated with Chicago Duluth Detroit: 354 t/day estimated with Chicago Detroit Milwaukee: 328 t/day estimated with Chicago Milwaukee Buffington: 265 t/day estimated with Chicago Buffington Thunder Bay: 232 t/day estimated with Chicago Thunder Bay Bay City: 141 t/day estimated with Chicago Bay City Cleveland: 117 t/day estimated with Chicago Cleveland Gary: 101 t/day estimated with Chicago Gary Grand Haven: 100 t/day estimated with Chicago Grand Haven Two Harbors: 95 t/day estimated with Chicago Two Harbors Hamilton: 92 t/day estimated with Chicago Hamilton Toledo: 80 t/day estimated with Chicago Toledo Port Dover: 57 t/day estimated with Chicago Port Dover Ashtabula: 57 t/day estimated with Chicago Ashtabula Sandusky: 55 t/day estimated with Chicago Sandusky Conneaut: 43 t/day estimated with Chicago Conneaut Burns Harbour: 42 t/day estimated with Chicago Burns Harbour Quebec: 37 t/day estimated with Chicago Quebec Menominee: 29 t/day estimated with Chicago Menominee Toronto: 28 t/day estimated with Chicago Toronto Fairport: 27 t/day estimated with Chicago Fairport Presque Isle: 26 t/day estimated with Chicago Presque Isle Montreal: 20 t/day estimated with Chicago Montreal Erie: 15 t/day estimated with Chicago Erie Monroe: 14 t/day estimated with Chicago Monroe Clarkson: 8 t/day estimated with Chicago Clarkson Rotterdam: 7 t/day estimated with Chicago Rotterdam Kunda: 6 t/day estimated with Chicago Kunda Vlissingen: 4 t/day estimated with Chicago Vlissingen Gdansk: 2 t/day estimated with Chicago Gdansk Tuticorin: 1 t/day estimated with Chicago Tuticorin Norfolk: 1 t/day estimated with Chicago Norfolk Chicago + − ⌂
click to enable scroll zoom · drag to pan Full footprint: all 36 connections of Chicago aggregated over the SeaRoute (Eurostat) shipping lanes — each segment glows according to the estimated capacity it carries (IMF PortWatch, AIS 2019-2025).
Where vessels arrive from
Ports of origin (upstream)
1. Calumet Harbor United States 1.1 days between calls
2. Green Bay United States 3.0 days between calls
3. Detroit United States 4.1 days between calls
4. Milwaukee United States 1.2 days between calls
5. Buffington United States IMF connection network based on vessel capacity before and after calling at this port (AIS 2019-2025). The time shown is the average elapsed between the call at one port and the next call at the other — it includes anchorage and berthing waits, which is why it far exceeds pure sailing time on short routes such as Algeciras–Tanger Med.
