Alberta Highway 43

Highway 43 is a major highway in northern and central Alberta, Canada, that connects Edmonton to the British Columbia border via the Peace Country, forming the northernmost portion of the CANAMEX Corridor in Alberta. It stretches approximately 495 kilometres (308 mi) from Highway 16 (Yellowhead Highway) near Manly Corner west of Edmonton to the British Columbia border west of Demmitt. It is designated as a core route in Canada's National Highway System, comprising a portion of a key international corridor that stretches from Alaska into Mexico.

Highway 43 was originally numbered Highway 17, a short gravel road that ran only from Highway 16 to Onoway. It was later extended to Whitecourt and renumbered as Highway 43 in the 1940s, and an extension to Valleyview had been completed by the mid-1950s. In 1991 the highway was extended to included a portion of the existing Highway 34 from Valleyview to Donnelly, but was revised in 1998 to turn west through Grande Prairie, forming a contiguous route from Manly Corner to the border. Due to increasing traffic levels and the province's greater plan to upgrade their portion of the CANAMEX Corridor, work began in the 2000s to twin the entire length of the highway. The Edmonton–Grande Prairie section was completed in summer 2014, and construction began in 2016 on an expressway bypass to the northwest of Grande Prairie. Planning is underway for the remaining section between the BC border and Beaverlodge.

Route description

Highway 43 begins west of Demmitt at the British Columbia border and runs through Grande Prairie, Valleyview, and Whitecourt to Highway 16 near Manly Corner west of Edmonton.