Bridges, Industry News, Latest News SA Gov unveils plans for $45M Mt Barker Interchange upgrade A new three-lane bridge and dedicated right-hand turns will form part of a $45m freeway interchange upgrade at Mt Barker, the new plan reveals.Read More Staff Writer10/02/2022, 9:45 am10/02/2022 Comments Off on SA Gov unveils plans for $45M Mt Barker Interchange upgrade 728