St. Charles Rock Road
| Former name(s) | St. Charles Street, St. Charles Road |
|---|---|
| Part of |
 Route 180
|
| Owner | City of Bridgeton and State of Missouri |
| Maintained by | City of Bridgeton Public Works Department, Street Maintenance Division and MoDOT |
| Length | 12.1 mi (19.5 km) |
| Location | Bridgeton–Wellston, Missouri |
| Nearest metro station | Rock Road |
| West end | Missouri Bottom Road in Bridgeton |
| Major junctions |
 Route 141 in Bridgeton I-270 in Bridgeton I-70 in Bridgeton US 67 in Bridgeton I-170 in Charlack
|
| East end |
 Route 180 / Route U in Wellston
|
| Construction | |
| Completion | 1815 |
St. Charles Rock Road is the current name of what was the first road to traverse present-day St. Louis County, Missouri between St. Louis and St. Charles. For most of its length it is also known as Route 180.
Its present-day origin is in Wellston, starting at Salzman Avenue where Martin Luther King Drive ends. It proceeds northwest past several cemeteries, crosses under I-170 within St. John, then continues through Breckenridge Hills and St. Ann. As it enters Bridgeton, it crosses over I-70 and then under I-270. From I-270 it continues northwest towards the banks of the Missouri River, ending opposite St. Charles at Missouri Bottom Road.
In the 1760s, St. Louis (on the Mississippi River) and St. Charles (on the Missouri) were the two major European settlements in the lower Missouri River Valley. A path between the two came to be known as King’s Highway, a name used in colonial times by the Spanish and then the French for many frequently used roads. The southeastern end of the road became known as St. Charles Street.
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Wikipedia