 From PTH 68 to the Saskatchewan border, the highway's designation changes to east-west.Prior to 1980, the southern terminus for PTH 5 was at PTH 16 "(PTH 4 prior to 1977)" in Neepawa, making the original length of the highway .In 1980, the highway was extended to its current southbound terminus, replacing PR 258 between Neepawa and PTH 3 at Cartwright, via Glenboro and Carberry, and PTH 28 between the U.S. border and Cartwright.