Missouri State Route 30 runs from the St. Louis County Line, at the River Des Peres to Interstate 55, south of downtown. MO St Rt 30 is not multi-plexed in St. Louis. MO St Rt 30 intersects the following highways in St. Louis. Missouri State Route 366, near Amberg Park.
NB MO St Rt 30 north of Loughborough Ave. EB MO St Rt 30 near Alma Ave. EB MO St Rt 30 near Morgan Ford. A junction marker on WB MO St Rt 366. EB MO St Rt 30 east of MO St Rt 366. EB MO St Rt 30 at Spring Ave. EB MO St Rt 30 at California Ave. A BGS on NB I-55. A BGS on NB I-55. A BGS on WB I-44. A BGS on WB I-44/SB I-55. A BGS on WB I-44/SB I-55.
