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State highway in Missouri
Route 30
Route 30 highlighted in red
Route information
Maintained by MoDOT
Length
52.718 mi[1] (84.841 km)
Existed
1922–present
Major junctions
West end
I-44 in St. Clair
Major intersections
Route 47 in St. Clair
Route 141 in Fenton
I-270 in Sunset Hills
US 50 / US 61 / US 67 in Sunset Hills
East end
I-44 / I-55 in St. Louis
Location
Country
United States
State
Missouri
Counties
Franklin
Jefferson
St. Louis
Independent city
City of St. Louis
Highway system
Missouri State Highway System
Interstate
US
State
Supplemental
← I-29
→ Route 31
Route 30 is a highway in eastern Missouri, United States. Its eastern terminus is at the Interstate 55/Interstate 44 junction in St. Louis. Its western terminus is at Interstate 44 in St. Clair. In St. Louis, the section between Interstate 44 and Route 366 is part of historic U.S. Route 66 and is marked as such. In the St. Louis area, it is known as Gravois Avenue or Gravois Road. Further south, Gravois Rd. is used to mark the old section of the highway where the newer, divided highway rerouted Highway 30.
^Missouri Department of Transportation (March 19, 2015). MoDOT HPMAPS (Map). Missouri Department of Transportation. Retrieved March 19, 2015.
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Global Information
I-44 in St. Clair
I-44 / I-55 in St. Louis
