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

The third route in Ontario to carry the Highway 11A designation existed near Thunder Bay between 1960 and 1972. The route was created when Highway 11 was extended from Nipigon to Atikokan. Since Highway 11's new route through the Port Arthur and Fort William area ran concurrently with Highway 17, it was decided to designate an alternate route for Highway 11 concurrently with the existing alternate route for Highway 17 between Port Arthur (later known as Thunder Bay) and Sistonen's Corners. The newly-designated route of Highway 11A ran concurrently with Highway 17A for its entire length. The highway was roughly 36 km in length. In 1972, Highway 11A & Highway 17A were both renumbered as Highway 102. Two other unrelated routes in Toronto and Bracebridge were also designated as Highway 11A.