In St. Louis County, Missouri State Route 370 is an expressway, running from the Missouri River to I-270. This section completes the by-pass aroudn St. Charles, and provides a alternate to the old and heavly used Blanchette Bridge on I-70 to the south. MO 370 passes through the following towns in St. Louis County. Bridgeton
Hazelwood Missouri State Route 370 does not multi-plex with any other route in St. Louis County. Missouri State Route 370 intersects the following highway in St. Louis County. Interstate 270, at Bridgeton.
EB MO St Rt 370 at I-270. The eastern end of MO St Rt 370. The eastern end marker. A NB on NB I-270. A motorist advisory BGS on WB I-270. A BGS on NB I-270. A BGS on WB I-270. A BGS on WB I-270. EB MO 370 near I-270 WB MO St Rt 370 at St. Louis Mills. WB MO St Rt 370 east of MO St Rt 141. WB MO St Rt 370 west of MO St Rt 141. WB MO St Rt 370 east of the Missouri River. WB MO St Rt 370 at the Missouri River.
