Missouri Secondary State Route W is a north-south highway in Southwestern Linn County. It runs from U.S. Rt. 36/Missouri State Route 139, south to Fountain Grove. MO Sec St Rt W passes through the following town in Linn County. Fountain Grove MO Sec St Rt W is not multi-plexed in Linn County. MO Sec St Rt W intersects the following highways in Linn County. U.S. Rt. 36, near Meadville. Missouri State Route 139, near Meadville.