Wisconsin State Route 89 runs briefly in Southeastern Columbia County. This runs from BUSN U.S. Rt. 151/Wisconsin State Route 73, near Columbus to the Columbia/Dane County Line. WI St Rt 89 does not pass through any towns in Columbia County. WI St Rt 89 is not multi-plexed in Columbia County. WI St Rt 89 intersects the following highways in Columbia County. BUSN U.S. Rt. 151, near Columbus. Wisconsin State Route 73, near Columbus.
