Interstate 64 in Missouri

This article is about the section of Interstate 64 in Missouri. For the entire length of the highway, see Interstate 64.

Interstate 64
Route information
Maintained by MoDOT
Length:	40.6 mi (65.3 km)
Existed:	1956 – present
Major junctions
West end:	I-70 / US 40 / US 61 in Wentzville
	I-270 in Town and Country US 61 / US 67 in Frontenac I-170 in Richmond Heights I-55 / I-70 in St. Louis
East end:	I-55 / I-64 / I-70 / US 40 in St. Louis
Location
Counties:	St. Charles, St. Louis, City of St. Louis
Highway system
Interstate Highway System Main Auxiliary Business Missouri Highways Supplemental ← US 63 Route 64 →

Interstate 64 (I-64) passes through in the St. Louis area in the U.S. state of Missouri. The entire route overlaps U.S. Route 40 (US 40). Because the road was a main thoroughfare in the St. Louis area before the development of the Interstate Highway System, it is not uncommon for locals to refer to the stretch of highway as "Highway 40" rather than "I-64". On December 6, 2009, the portion of the highway running through the city of St. Louis was named the Jack Buck Memorial Highway in honor of the late sportscaster.

Route description

I-64 begins at an interchange with Interstate 70, U.S. Route 40, and U.S. Route 61 in Saint Charles County and heads south. Previously, the freeway was a divided highway signed only as U.S. 40 with at-grade intersections, which were slowly converted to limited-access exits. The final intersection at Callahan Road was removed on October 14, 2009. The next major exit is for Route N (Missouri), which will be eventual western terminus of Missouri Route 364. Pavement stubs indicate what the eventual interchange will look like, which has a completion date of December 2014. From here, I-64 continues past an interchange with Route 94 and crosses the Missouri River via the Daniel Boone Bridge and enters Saint Louis County.

The freeway travels through the congested Chesterfield Valley, where it gains a fourth lane and then meets Interstate 270 at a flyover interchange built in the early 1990s in the city of Town and Country. Continuing east, I-64 remains four lanes and travels through the affluent areas of Frontenac and Ladue. The next major interchange is Interstate 170 in the city of Richmond Heights. This stretch, between Ballas Road and I-170, was closed in 2008 for a complete reconstruction, at which point substandard exits were upgraded and the fourth lane was added. The interchange with I-170 was also overhauled, creating a full interchange with high speed ramps in all directions. The reconstructed expressway opened to traffic on the morning of December 15, 2008.

East of the interchange with I-170, I-64 drops a lane and stays at three through lanes to Clayton Road. Through here, the expressway passes through older neighborhoods and enters into the city of Saint Louis. After re-adding a fourth lane, the freeway skirts the southern edge of Forest Park. In this area, one would find both the St. Louis Science Center and St. Louis Zoo both immediately to the north. Kingshighway marks the end of the completely reconstructed eastern half, where again outdated exits were updated and shoulders widened. The eastern half was closed from December 15, 2008 to December 7, 2009. I-64's speed limit drops from 60 to 55 miles per hour east of Kingshighway and drops a lane at Vandeventer Ave (the opposite of the westbound lanes). Passing by Saint Louis University, the freeway becomes double-decked for the first time (eastbound lanes lower level, westbound lanes upper level), gaining back a fourth lane east of Compton Avenue. Another lane drop occurs at the Chestnut Street/20th Street exit, where the cancelled Missouri Route 755 was to interchange. The freeway passes just south of the Scottrade Center and again becomes double-decked in the same arrangement, passing within fifty feet of the New Busch Stadium. The route becomes two lanes as it approaches the Mississippi River and the Poplar Street Bridge, where it joins with Interstate 55 and Interstate 70 (again) at an incomplete interchange, though eastbound I-64 cannot directly access any of the other routes. Westbound I-64, however, can directly access both. All three then head into Illinois.

History

Reconstruction

In 2008, I-64/US 40 was closed in this area for a complete reconstruction between 2008 and 2009. Shown is the Spoede Road overpass above I-64. This overpass was demolished in June 2008.

The Missouri Department of Transportation rebuilt the stretch of I-64 from Spoede Road to Kingshighway Boulevard between 2008 and 2009. The project included new concrete pavement on the highway; approximately 25 rebuilt bridges; and several reconfigured interchanges, including a new freeway-to-freeway interchange at Interstate 170.

The section between Spoede Road and I-170 was closed for reconstruction on Jan 2, 2008 and opened to traffic on December 15, 2008. The section between I-170 and Kingshighway Boulevard was closed on December 15, 2008 and reopened to traffic December 7, 2009.

Exit list

County	Location	Mile	km	Exit	Destinations	Notes
St. Charles	Wentzville	0.0	0.0	1A-B	I-70 / US 40 west – Kansas City, St. Charles US 61 north – Hannibal
		1.0	1.6	1C	Prospect Road
	Lake St. Louis	2.9	4.7	2	Lake St. Louis Boulevard
		3.7	6.0	4	Route N
	O'Fallon	5.8	9.3	6	Route DD (Winghaven Boulevard)
		9.5	15.3	9	Route K – O'Fallon
	Weldon Spring	10.7	17.2	10	Route 94 – St. Charles	Westbound exit via exit 9
		11.5	18.5	11	Research Park Circle	No westbound entrance
St. Louis	Chesterfield	13.5	21.7	14	Chesterfield Airport Road	Eastbound exit and westbound entrance
		14.2	22.9	15	Spirit of Saint Louis Boulevard	Westbound exit and eastbound entrance
		16.2	26.1	16	Long Road	Westbound exit and eastbound entrance
		16.6	26.7	17	Boone's Crossing
		18.7	30.1	19A	Chesterfield Parkway
		19.1	30.7	19B	Route 340 (Olive Boulevard, Clarkson Road)
		20.5	33.0	20	Chesterfield Parkway	Westbound exit and eastbound entrance
		20.9	33.6	21	Timberlake Manor Parkway
	Town and Country	21.9	35.2	22	Route 141 (Woods Mill Road)
		23.2	37.3	23	Maryville Centre Road	No eastbound exit
		23.0	37.0	24	Mason Road
		25.3	40.7	25	I-270 – Tulsa, Chicago, Memphis
		26.0	41.8	26	Ballas Road
	Frontenac	27.2	43.8	27	Spoede Road
		27.7	44.6	28A	US 61 south / US 67 (Lindbergh Boulevard)	South end of US 61 overlap
	Ladue	28.9	46.5	28B	Clayton Road	Westbound exit and eastbound entrance
		30.0	48.3	30	McKnight Road
	Richmond Heights	30.3	48.8	31A	I-170 north – Clayton
		31.0	49.9	31B	Brentwood Boulevard, Hanley Road	Roads connected via one way collector road
		32.6	52.5	33A	Big Bend Boulevard
		33.0	53.1	33B	Bellevue Avenue	Eastbound exit; westbound entrance via collector road connected to Big Bend Boulevard entrance ramp
City of St. Louis		33.3	53.6	33C	McCausland Avenue
		34.0	54.7	34A	Clayton Road, Skinker Boulevard	Westbound exit and eastbound entrance
		34.4	55.4	34B	Hampton Avenue	Eastbound slip ramp exit to Oakland Avenue eastbound
		35.6	57.3	36A	Kingshighway Boulevard
		36.5	58.7	36B	Boyle Avenue	Westbound exit and eastbound entrance
		36.7	59.1	36C	Vandeventer Avenue	Eastbound exit and westbound entrance
		37.5	60.4	37A	Market Street, Bernard Street	Eastbound exit and westbound entrance
		37.6	60.5	37B	Grand Boulevard	Eastbound exit and westbound entrance
		38.1	61.3	38A	Forest Park Avenue, Grand Boulevard	Westbound exit and eastbound entrance
		38.3	61.6	38B	Market Street, 3000 West	Westbound exit and eastbound entrance
		38.4	61.8	38C	Jefferson Avenue	Eastbound exit and westbound entrance
		38.6	62.1	38D	Chestnut Street, 20th Street	Eastbound exit and westbound entrance / planned, but not built urban expressway
		38.9	62.6	39A	Market Street, 21st Street	Westbound exit and eastbound entrance
		39.2	63.1	39B	14th Street	Eastbound exit and westbound entrance
		39.5	63.6	39C	11th Street – Busch Stadium	Eastbound exit and westbound entrance
		39.8	64.1	40A	9th Street, Tucker Boulevard – Busch Stadium	Westbound exit only; eastbound entrance via 6th Street
		39.9	64.2	40B	6th Street	Eastbound exit and westbound entrance
		40.3	64.9	40C	I-55 south to I-44 west – Memphis, Tulsa	West end of I-55 overlap; westbound exit and eastbound entrance
		40.5	65.2		I-70 west / Memorial Drive	West end of I-70 overlap; westbound exit and eastbound entrance
Mississippi River		40.6	65.3	Poplar Street Bridge
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also

Missouri portal U.S. Roads portal

External links

Template:Attached_KML/Interstate 64 in Missouri

• Missouri Department of Transportation: The New I-64

Interstate 64
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