History of King's Highway 15A (Alt) Ottawa:
King's Highway 15A (Alt) was created in 1956, when a former route of Highway 15 from the intersection of Richmond Road and Carling Avenue near Brittania
Heights into Downtown Ottawa was redesignated as Highway 15A (Alt). Prior to 1956, the route of Highway 15 branched into two separate highways at
Brittania Heights. The route of Highway 15A (Alt) followed Richmond Road and Wellington Street from Brittania Heights into Downtown Ottawa, while the route
of Highway 15 via Carling Avenue retained its original designation. Highway 15A (Alt) ended at the junction with Highway 31 at the intersection of
Wellington Street and Bank Street in Downtown Ottawa. The route of Highway 15A (Alt) was decommissioned in 1960, along with a number of other "scenic"
routes that had been established in the Ottawa area during the 1940s and 1950s.
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