Missouri Route 231

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Route 231

Route 231 highlighted in red
Route information
Maintained by MoDOT
Length12.234 mi[2] (19.689 km)
ExistedJanuary 1964[1]–present
Major junctions
South end US 61 / US 67 in Arnold
Major intersections I-255 / US 50 in Mehlville
North endRiver City Casino Boulevard in St. Louis
CountryUnited States
CountiesJefferson, St. Louis, City of St. Louis
Highway system
I-229 Route 240

Route 231 is a highway in the St. Louis, Missouri, area. It begins at U.S. Routes 61 and 67 (US 61 / US 67) in Arnold. It follows Telegraph Road through Jefferson and St. Louis counties, being Oakville's main thoroughfare. It then continues further North as Kingston Drive and then Broadway Street. It ends at River City Casino Boulevard, just inside the St. Louis city limits. The road continues north, further into the city, as Broadway. It closely parallels the Mississippi River for its entire route.

Major intersections

JeffersonArnold0.0000.000 US 61 / US 67Southern terminus
St. LouisMehlville8.59913.839 I-255 / US 50 – Chicago, IL, Memphis, TNExit 2 on I-255 / US 50
City of St. Louis12.23419.689River City Casino Boulevard / Broadway northNorthern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ "State Changes Designations of Several Highways in Area". St. Louis Post-Dispatch. January 16, 1964. p. 16. Retrieved April 18, 2019 – via Newspapers.com.
  2. ^ a b Missouri Department of Transportation (March 20, 2015). MoDOT HPMAPS (Map). Missouri Department of Transportation. Retrieved March 20, 2015.