History of King's Highway 24A:
King's Highway 24A was a short alternate route that connected Paris to Galt (Cambridge). Highway 24A came into existence in 1930, when Highway 24 was relocated onto a new, more direct route between Brantford and Galt. The old route of Highway 24 from Highway 2 in Paris to Highway 24 in Galt became Highway 24A. The new 21 km route of Highway 24A was gravel-surfaced at first, but it was paved in its entirety in 1931.
In 1964, work began on a new highway between Simcoe and Highway 53 in order to complete a proper alternate route to Highway 24 between Cambridge and Simcoe. This new road was originally planned to be a southerly extension of Highway 24A. The first section of the new Highway 24A was opened in 1965 between Simcoe and Scotland. This new section of Highway 24A was 16 km long, but it was not connected to the north section of Highway 24A located between Paris and Galt. Despite the ambitious plans to create an extension of Highway 24A to Simcoe, the extension of the highway went no further bearing that designation. The final section of the new highway between Scotland and Highway 53 near Burford opened to traffic in 1967, but prior to the opening, a decision was made to name this new route as Highway 24 instead. The Highway 24A designation was removed from the newly constructed highway between Simcoe and Highway 53 near Burford and replaced by the Highway 24 designation.
In 1975, the section of Highway 24A lying north of the Brant-Waterloo Boundary was decommissioned. The road was turned over to the Regional Municipality of Waterloo on October 7, 1975. The former section of Highway 24A was renamed as Waterloo Regional Road 75. On March 31, 1997, the remainder of Highway 24A was downloaded to Brant County. During 1998 and 1999, the former Highway 24A was renamed several times by Brant County. Eventually, the logical name "Brant County Highway 24A" was established.
Highway 24A is a rural two-lane highway for its entire length bewteen Paris and Cambridge. Services are available frequently along Highway 24A. The speed limit on Highway 24A is 80 km/h (50 mph), unless posted otherwise. Please visit the Highway 24A Mileage Chart page for a list of mileage reference points along Highway 24A.