The section of Highway 4 through Milk River was the last remaining section that was not a divided expressway. Work had been delayed by land acquisition and some uncertainty on the final routing. A bypass east of the town and upgrades to the existing route through the community had been considered, but ultimately a new twinned highway west of the town, and a relocation of the railway, was chosen. The $59 million project included the construction of two bridges over Milk River and was completed in 2009.