Missouri Route 30

Route 30
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
	Route 47 in St. Clair I-270 in Sunset Hills US 50 / US 61 / US 67 in Sunset Hills
East end:	I-44 / I-55 in St. Louis
Highway system
Missouri State Highway System Interstate US State Supplemental ← 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

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 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 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.

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

County	Location	mi[1]	km	Destinations	Notes
Franklin	St. Clair	0.000	0.000	Route AB north / Route WW west / Historic US 66 west	Western terminus of Route 30 and concurrency with Historic US 66; continuation beyond western terminus
		0.088	0.142	I-44 – Rolla, St. Louis	Western terminus; exit 239 on I-44
		0.453	0.729	Route 47 north / Historic US 66 east (Commercial Avenue)	Eastern terminus of concurrency with Historic US 66; western terminus of concurrency with Route 47
		0.769	1.238	Route PP south (Sycamore Avenue)	Northern terminus of Route PP
	​	1.817	2.924	Route K south	Northern terminus of Route K
	​	6.657	10.713	Route 47 south – Richwoods	Eastern terminus of concurrency with Route 47
	Lonedell	9.859	15.867	Route N north	Southern terminus of Route N
		9.920	15.965	Route FF south	Northern terminus of Route FF
	​	12.505	20.125	Route HH north	Southern terminus of Route HH
Jefferson	Grubville	14.491	23.321	Route Y south	Northern terminus of Route Y
	​	20.817	33.502	Route NN north / Route B south – Hillsboro	Southern terminus of Route NN; northern terminus of Route B
	Byrnes Mill	27.465	44.201	Route W north / Route MM east – Eureka, House Springs	Southern terminus of Route W; northern terminus of Route MM
	High Ridge	31.421	50.567	Route PP north	Southern terminus of Route PP
St. Louis	Fenton	38.132	61.368	Route 141 – Fenton, Valley Park	Interchange
	Sunset Hills	40.842	65.729	I-270	Exit 3 on I-270
		41.787	67.250	US 50 / US 61 / US 67 (Lindbergh Boulevard)
	Affton	44.898	72.256	Route 21 south (Tesson Ferry Road)	Northern terminus of Route 21
		45.251	72.824	Route P north (Mackenzie Road)	Southern terminus of Route P
City of St. Louis		49.976	80.429	Route 366 / Historic US 66 west (Chippewa Street)	Western terminus of concurrency with Historic US 66; no left turns
		50.658	81.526	Grand Boulevard
		52.085	83.823	Jefferson Avenue	No left turns
		52.651	84.734	I-55 south – Memphis	Exit 207A on I-55
		52.718	84.841	I-44 east / I-55 north	Eastern terminus; exit 290C on I-44
		52.718	84.841	Historic US 66 east (Tucker Boulevard)	Eastern terminus of concurrency with US 66; continuation beyond I-44 / I-55
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Incomplete access

References

Route map: Google