sentences:  This road was designated Highway 17A on April 1, 1937, when the DND merged into the Department of Highways.In 1959, Highway 120 was renumbered as Highway 11, and a concurrency with Highway 17 between Shabaqua Corners and Nipigon was created to join the discontinuous segments.As the northern bypass of Port Arthur now formed an alternate route to both Highway 11 and 17, it was codesignated as Highway 11A and 17A.