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Cochrane Interchange

The Government of Alberta has started the design process for building an interchange at Highway 1A and Highway 22 in the Town of Cochrane. The intersection, which sees an average of more than 27,000 vehicles per day, was originally planned to be a widened at-grade intersection but with the significant growth in the Town of Cochrane over the years, the town would outgrow the intersection within 10 years. After Alberta Transportation consulted with the Town of Cochrane and considered the future role of Highway 22, an interchange at this location was thought to be the best alternative to alleviate operational issues well into the future.

Project Details

The project is estimated to cost between $40 to 50 million, and will include:

  • Converting Highway 1A to four lanes, divided (two lanes each way) east of Big Hill Creek through to the west interchange limits;
  • Construction of a “Parclo AB” interchange type, with free-flow conditions on Highway 22;
  • Replacement of the bridge structure carrying Hwy 22 over the CPR;
  • Replacement and twinning of the bridge structure carrying Hwy 1A over Big Hill Creek; and,
  • Addition of ramps to access both Highway 1A and 22. 

Project Timelines

Alberta Transportation has engaged ISL Engineering and Land Services to complete detailed design of the project, slated for completion in the Spring of 2019. Following completion of design work and provincial funding, construction could begin in the Fall of 2019.

Project Benefits

This project will support economic development in Alberta by improving access, allowing efficient movement of goods and people through the town to access Highway 1 to the south and the Highway 22 corridor to the north, in particular larger truck traffic that currently uses the corridor. The project will also support planned growth in Cochrane, enhance safety and reduce congestion currently experienced at this location.


Questions about this project? Email: Hwy1A22@islengineering.com