Missouri Route 30

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Route 30 marker

Route 30
Gravois Road/Gravois Avenue
Route information
Maintained by MoDOT
Length: 59 mi (95 km)
Existed: 1922 – present
Major junctions
East end: I-44.svgI-55.svg I-44/I-55 in St. Louis
  MO-366.svg Route 366 in St. Louis
MO-supp-P.svg Route P in Grantwood Village
US 50.svgUS 61.svgUS 67.svg US 50/61/67 in Sunset Hills
I-270.svg I-270 in Sunset Hills
MO-141.svg Route 141 in Fenton
MO-47.svg Route 47 west of Lonedell
West end: I-44.svg I-44 in St. Clair
Highway system

Missouri Highways

I-29 Route 31

Route 30 is a highway in eastern Missouri. 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.

Route description[edit]

Route 30 begins as it crosses over Interstate 55 at I-55's interchange with I-44. The four-lane road turns southwest as Gravois Rd and, after about two miles (3 km), intersects Route 366. Shortly after the intersection with Route 366(where a Quiktrip is now open), the road becomes a narrow street passing through some older parts of St. Louis. At the city limits of St. Louis, it continues into the suburban area (unincorporated). Shortly before reaching Grantwood Village is the northern terminus with Route 21. About two miles (3 km) further west is the intersection with Lindbergh Blvd (US 61/US 67/US 50) and the road becomes a four-lane divided highway. A mile past Lindbergh Boulevard is the junction with I-270, and two miles (3 km) southwest of that is an interchange over Route 141.

As the highway continues southwest in the suburban St. Louis area, the road has several traffic lights which gradually diminish as the road approaches Cedar Hill. West of Cedar Hill, the divided highway ends and the road becomes a winding road all the way to its end. A portion of the highway over the Meramec River was re-routed in the early 2000s when a new, wider bridge was built.

West of Lonedell is the beginning of a concurrency with Route 47. The concurrency ends five miles (8 km) later inside the city limits of St. Clair. The road briefly joins former U.S. Route 66, turns a corner, and ends at Interstate 44.

Major intersections[edit]

County Location Mile km Destinations Notes
Franklin St. Clair Route AB west / Route WW west / Historic US 66 west west end of Historic US 66 overlap
I-44 – St. Louis, Rolla I-44 exit 239
Route 47 north / Historic US 66 east (South Commercial Avenue) east end of Historic US 66 overlap; west end of Route 47 overlap
  Route 47 south – Richwoods east end of Route 47 overlap
Jefferson   Route NN north / Route B south – Hillsboro
Scotsdale / Byrnes Mill Route W north / Route MM east – Eureka, House Springs
St. Louis Fenton Route 141 – Fenton, Valley Park interchange
Sunset Hills I-270 I-270 exit 3
US 50 / US 61 / US 67 (Lindbergh Boulevard)
Affton Route 21 south (Tesson Ferry Road)
City of St. Louis Route 366 / Historic US 66 west (Chippewa Street) west end of Historic US 66 overlap; no left turn in either direction
Grand Boulevard
South Jefferson Avenue no left turn in either direction
I-55 south – Memphis I-55 exit 207A
I-44 east / I-55 north / Historic US 66 east (Tucker Boulevard) east end of Historic US 66 overlap; I-44 exit 290C
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Mass Transit[edit]

The southern half of MetroBus Route #10 (Lindell-Gravois) follows Gravois Ave from the Civic Center Station at 14th and Spruce, then onto Tucker and Chouteau. From Tucker, the route follows nearly the entirety of Gravois Ave until it reaches the Hampton Loop at Hampton and Gravois.

Route map: Google / Bing