Missouri Secondary State Route B runs in North St Louis County. It mostly runs near Lambert-St. Louis International Airport. MO Sec St Rt B passes through the following town in St. Louis County. Bridgeton
MO Sec St Rt B is not multi-plexed in St. Louis County. MO Sec St Rt B intersects the following highways in St. Louis County. Interstate 70, at Bridgeton. U.S. Rt. 67, at Bridgeton. Missouri State Route 180, at Bridgeton.
A BGS on WB I-70. A junction marker on WB MO St Rt 180.
