Like most alternate routes, it previously served as the main highway through the town.

[1] PTH 16A runs in concurrence with PR 262 from its southern terminus into Minnedosa,[2] using 1st Street S.W., 3rd Avenue S.W., and Main Street within the town limits before PR 262 leaves the concurrence at 2nd Avenue S.E.

[3] PTH 16A continues along Main Street before meeting westbound PR 355 (6th Avenue N.W.)

PR 262 was added to its current portion of the route when the Government of Manitoba implemented its secondary road system in 1966.

The Minnedosa by-pass was completed and opened to traffic in 1971, with the PTH 4/10 designation being transferred to the new highway.