| Province: | AB |
| Type: | AB 1970s |
| Route: | 46 |
| Length Km: | 152 |
| Established: | 1950s |
| Direction A: | South |
| Direction B: | North |
| Terminus A: | near Radway |
| Junction: | near Atmore |
| Terminus B: | in Lac La Biche |
| Previous Type: | Hwy |
| Next Type: | Hwy |
| Previous Route: | 45 |
| Next Route: | 47 |
| Rural Municipalities: | Thorhild, Athabasca, Lac La Biche |
| Towns: | Lac La Biche |
Alberta Provincial Highway No. 46, commonly referred to as Highway 46, was a highway in north-central Alberta, Canada connecting Edmonton to Lac La Biche. It existed between the 1950s and 1970s, and has formed portions of Highways 55 and 63 since the late 1970s.[1] [2]
Highway 46 began at Highway 28 west of Radway and travelled north to through Boyle.[3] North of Boyle, Highway 46 turned east through Grassland and Atmore, ending in Lac La Biche.[3]
A portion of the gravel road that later became Highway 46 had been constructed by the late 1930s.[4] [5] Construction of Highway 63 between Atmore and Fort McMurray began in 1962.[6] In the late-1970s, in conjunction with new highways being constructed between Athabasca and Boyle as well as between Lac La Biche and Cold Lake, the east-west section between Atmore and Lac La Biche was renumbered to Highway 55.[2] The north-south section between Radway and Boyle became part of Highway 63, while a concurrency with Highways 55 & 63 was established between Boyle and Atmore.[2]
Replacement highways
| Current Number | Length (km) | Length (mi) | Southern terminus | Northern terminus | Notes | ||||
|---|---|---|---|---|---|---|---|---|---|
| 890NaN0 | Hwy 28 near Radway | Former Highway 664 at Donatville | Hwy 664 replaced by Highway 55. | ||||||
| Former Highway 664 at Donatville | Highway 63 at Atmore | ||||||||
| 400NaN0 | Highway 63 at Atmore | Hwy 36 in Lac La Biche | Highway 55 continues east. | ||||||
| Concurrency | |||||||||