Missouri Secondary State Route BB is a short north-south in West-Central Clark County. It runs south of U.S. Rt. 136. MO Sec St Rt BB does not pass through any towns in Clark County. MO Sec St Rt BB is not multi-plexed in Clark County. MO Sec State Route BB intersects the following highway in Clark County. U.S. Rt. 136, near Luray.