Highway 114's routing started off as part of Highway 2.
In 1929, there was a great renumbering in the area because the Ambassador Bridge opened.
Highway 2 was rerouted along a different path just to the north, along North Talbot Road and Provincial Road (along what would become Highway 98).
Malden Road was re-designated as Highway 2A until 1931, when the predecessor to Highway 98 received that numbering, and this road received the designation of Highway 3B (unrelated to Dougall Avenue's designation of 3B).
This remained until 1938, when it was re-designated as Highway 98A, a spur of the newly created Highway 98.

By 1954, this road became an independent non-spur road in its own right, and received the numbering of Highway 114.
It remained this way until it was deleted in 1970.

To simplify things, the following designations for Highway 114 are listed below:
Highway 2 (1925–1929)
Highway 2A (1929–1931)
Highway 3B (Maidstone) (1931–1938)
Highway 98A (Maidstone) (1938–1953)
Highway 114 (Maidstone) (1954–1970)
Highway 114's routing started off as part of Highway 2. In 1929, there was a great renumbering in the area because the Ambassador Bridge opened. Highway 2 was rerouted along a different path just to the north, along North Talbot Road and Provincial Road (along what would become Highway 98). Malden Road was re-designated as Highway 2A until 1931, when the predecessor to Highway 98 received that numbering, and this road received the designation of Highway 3B (unrelated to Dougall Avenue's designation of 3B). This remained until 1938, when it was re-designated as Highway 98A, a spur of the newly created Highway 98.
By 1954, this road became an independent non-spur road in its own right, and received the numbering of Highway 114. It remained this way until it was deleted in 1970.
To simplify things, the following designations for Highway 114 are listed below:
Highway 2 (1925–1929)
Highway 2A (1929–1931)
Highway 3B (Maidstone) (1931–1938)
Highway 98A (Maidstone) (1938–1953)
Highway 114 (Maidstone) (1954–1970)
Ontario Highway 114