Missouri Secondary State Route U is a north-south highway in Eastern Linn County. It runs from U.S. Rt. 36/Missouri Secondary State Route 5, near Bucklin, to Missouri State Route 129, south of New Boston. MO Sec St Rt U does not pass through any towns in Linn County. MO Sec St Rt U is not multi-plexed in Linn County. MO Sec St Rt U intersects the following highways in Linn County. U.S. Rt. 36, near Bucklin. Missouri State Route 5, near Bucklin.
