Missouri Route 370

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Route 370

Maintained by MoDOT

Length:

11 mi (18 km)

Formed:

1993

East end:

Bridgeton

West end:

St. Peters

Major cities:

Bridgeton
St. Charles
St. Peters

Missouri Highways
< Route 367		Route 371 >
Supplemental

Route 370 is a freeway that connects St. Louis County with St. Charles County via the Discovery Bridge over the Missouri River.

1 Route description
2 History
3 Exit list
4 See also

[edit] Route description

Please help improve this section by expanding it.
Further information might be found on the talk page or at requests for expansion.

From west to east, Route 370 begins in St. Peters at Interstate 70 east of Mid Rivers Mall Dr and ends in Hazelwood at Interstate 270 west of Missouri Bottom Rd.

[edit] History

Construction on SR-370 began in the early 1990s. It was built to replace the section of St. Charles Rock Rd, then designated as Route 115, west of Interstate 270. On December 16, 1992 the first section of the highway opened allowing direct access to St. Charles at Route 94 from I-270. It replaced the crumbling Old St. Charles Bridge that carried SR-115 traffic. On April 1, 1993 the road was designated as SR-370. Later in 1993 a great flood surrounded much of the highway which is built on top of an embankment. As the flood waters surrounded the highway, many of the new exits had been shut down because the roads it connected to were underwater. Despite the flood construction resumed on the highway until it was completed in 1996.

[edit] Exit list

County	Location	#	Destinations	Notes
St. Charles		1A	I-70 east – St. Louis
		1B	I-70 west – Kansas City
		1C	Spencer Rd.	westbound only
		2	Truman Blvd., Cave Springs Rd.
	St. Charles	5	Elm St., Airport Rd.
	St. Charles	7	Route 94 / North 3rd St.
St. Louis	Bridgeton	9	Earth City Expressway
		11	St. Louis Mills Blvd.
		12A	I-270 north – Chicago
		12B	Missouri Bottom Rd.	Exit only
		12C	I-270 south – Memphis