Minnesota State Route 55 is a north-south highway in Central Dakota County. It runs from Hennepin/Dakota County Line, at Fort Snelling, to U.S. Rt. 61, at Hastings. MN St Rt 55 passes through the following towns in Dakota County. Mendota Heights Eagan Inver Grove Heights Rosemount Hastings MN St Rt 55 is multi-plexed in Dakota County. Minnestoa State Route 149, at Eagan.