Missouri Secondary State Route B is a north-south highway in Eastern Clark County. It runs from U.S. Rt. 136, at Wayland, to the Iowa/Missouri State Line at Saint Francisville. MO Sec St Rt B passes through the following towns in Clark County. Wayland
MO Sec St Rt B is not multi-plexed in Clark County. MO Sec St Rt B intersects the following highways in Clark County. U.S. Rt. 136, at Wayland.