Between April 1993 and May 1995, as part of the Hume Highway bypass of Yass, a dual carriageway deviation of Barton Highway was constructed to connect Barton Highway with the new alignment of Hume Highway, north of Yass. The new route crosses the Yass River on twin bridges to the east of Cooma Cottage before terminating at a trumpet interchange with Hume Highway, about northeast of Yass. The highway's former alignment, near the historic Cooma Cottage, east of the Yass River, was renamed Kirkton Road and Dog Trap Road.
