Missouri Route 30

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.

Route 30
Route 30 highlighted in red
Route information
Maintained by MoDOT
Length52.718 mi[1] (84.841 km)
Existed1922–present
Major junctions
West end I-44 in St. Clair
 
East end I-44 / I-55 in St. Louis
Location
Counties
Highway system
← I-29→ Route 31

Route description

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 (3.2 km), intersects Route 366. Shortly after the intersection with Route 366, 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 (3.2 km) further west is the intersection with Lindbergh Boulevard (U.S. 50 / U.S. 61 / U.S. 67) and the road becomes a four-lane divided highway. A mile past Lindbergh Boulevard is the junction with I-270, and two miles (3.2 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 (8.0 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.

Mass transit

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.

Major intersections
CountyLocationmi[1]kmDestinationsNotes
FranklinSt. Clair0.0000.000 Route AB north / Route WW west / Historic US 66 westWestern terminus of Route 30 and concurrency with Historic US 66;
continuation beyond western terminus
0.0880.142 I-44 – Rolla, St. LouisWestern terminus; Exit 239 on I‑44
0.4530.729 Route 47 north / Historic US 66 east (Commercial Avenue)Eastern terminus of concurrency with Historic US 66;
western terminus of concurrency with Route 47
0.7691.238 Route PP south (Sycamore Avenue)Northern terminus of Route PP
​1.8172.924 Route K southNorthern terminus of Route K
​6.65710.713 Route 47 south – RichwoodsEastern terminus of concurrency with Route 47
Lonedell9.85915.867 Route N northSouthern terminus of Route N
9.92015.965 Route FF southNorthern terminus of Route FF
​12.50520.125 Route HH northSouthern terminus of Route HH
JeffersonGrubville14.49123.321 Route Y southNorthern terminus of Route Y
​20.81733.502 Route NN north / Route B south – HillsboroSouthern terminus of Route NN; northern terminus of Route B
Byrnes Mill27.46544.201 Route W north / Route MM east – Eureka, House SpringsSouthern terminus of Route W; northern terminus of Route MM
High Ridge31.42150.567 Route PP northSouthern terminus of Route PP
St. LouisFenton38.13261.368 Route 141 – Fenton, Valley ParkInterchange
Sunset Hills40.84265.729 I-270Exit 3 on I‑270
41.78767.250 US 50 / US 61 / US 67 (Lindbergh Boulevard)
Affton44.89872.256 Route 21 south (Tesson Ferry Road)Northern terminus of Route 21
45.25172.824 Route P north (Mackenzie Road)Southern terminus of Route P
City of St. Louis49.97680.429 Route 366 / Historic US 66 west (Chippewa Street)Western terminus of concurrency with Historic US 66; no left turns
50.65881.526Grand Boulevard
52.08583.823Jefferson AvenueNo left turns
52.65184.734 I-55 south – MemphisExit 207A on I‑55
52.71884.841 I-44 east / I-55 northEastern terminus; Exit 290C on I‑44
52.71884.841 Historic US 66 east (Tucker Boulevard)Eastern terminus of concurrency with US 66;
continuation beyond I‑44 / I&@8209;55
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also
  •  U.S. Roads portal

References
  1. Missouri Department of Transportation (March 19, 2015). MoDOT HPMAPS (Map). Missouri Department of Transportation. Retrieved March 19, 2015.

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