PTH 28 first appeared on the 1959 Manitoba Highway Map. Along with PR 258, PTH 28 was decommissioned in its entirety when
PTH 5 was extended from
Neepawa to its current southern terminus in 1980. The original PTH 28 was designated from
PTH 1 north of
Griswold to
PTH 4 in
Shoal Lake. This became part of
PTH 21 in 1949. ==See also==