History of King's Highway 61B:
King's Highway 61B was a business route that was established in 1969 through Fort William, which later became Thunder Bay. The Lakehead Expressway was
completed around Fort William in 1969. The route of Highway 61 was relocated onto the newly-completed bypass. The bypassed section of Highway 61
through Fort William was redesignated as Highway 61B. It is believed that Highway 61B was actually a municipally-signed business loop in recent years and
was not an official designation. Highway 61B was apparently decommissioned on March 31, 1997, although it should be noted that the highway was omitted
from all Ministry of Transportation mileage tables after 1989. Also, the route of Highway 61B was not marked on the Ontario Official Road Map between 1982
and 1986. In all likelihood, this omission was a cartographic error, since the highway was listed in MTO's mileage logs throughout the 1980s.
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