Ontario Highway 11B (Thunder Bay) History - The King's Highways of Ontario

The Fort William and Port Arthur (later Thunder Bay) Highway 11B Business Route was established in 1969, following the completion of the Lakehead Expressway. The Highway 11 designation was assigned to this new bypass route around Fort William and Port Arthur, while the old route of Highway 11 through the two cities became Highway 11B. The route was 17.5 km in length and it ran concurrently with Highway 17B for its entire route. It is believed that this road was actually a municipally signed business loop in recent years, since the route number has been omitted from all MTO mileage logs after 1989. However, the route is marked on the 1997 Official Ontario Road Map, suggesting that the route was not formally decommissioned until that year.