Missouri Secondary State Route T is a north-south highway in Northwestern Cole County. It runs from Missouri State Route 179, south to U.S. Rt. 50/Missouri Secondary State Route D. MO Sec St Rt T passes through the following towns in Cole County. Elston St. Martins MO Sec St Rt T is not multi-plexed in Cole County. MO Sec St Rt T intersects the following highways in Cole County. Missouri State Route 179, near Elston. U.S. Rt. 50, near St. Martins. Missouri Secondary State Route D, near St. Martins.