Missouri Route 370
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Route 370 is a freeway that connects Saint Louis County with Saint Charles County via the Discovery Bridge over the Missouri River.
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[edit] Route
From west to east, SR-370 begins in St. Peters at Interstate 70 east of Mid Rivers Mall Drive and ends in Hazelwood at Interstate 270 west of Missouri Bottom Road.
[edit] History
Construction on SR-370 began in the early 1990s. It was built to replace the section of St. Charles Rock Road, 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] List of Exits
- Exit 1A: Interstate 70 East
- Exit 1B: Interstate 70 West
- Exit 1C: Spencer Rd (westbound only)
- Exit 2: Harry S Truman Blvd / Cave Springs Rd
- Exit 5: Elm St / New Town Blvd
- Exit 7: Route 94
- Exit 9: Earth City Expwy
- Exit 11: St. Louis Mills Blvd
- Exit 12A: Interstate 270 West
- Exit 12B: Interstate 270 East
