Interstate 64 in Missouri

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Interstate 64 Main route of the Interstate Highway System
Maintained by Missouri DOT
Length:	14.69 mi[1] (23.64 km)
Formed:	1956
West end:	I-70 / US 40 / US 61 in Wentzville
Major junctions:	I-270 in Town and Country I-170 in Richmond Heights I-55 / I-70 in St. Louis
East end:	I-55 / I-64 / I-70 / US 40 at Illinois state line
Missouri Highways < US 63 Route 64 > Supplemental

In the U.S. state of Missouri, Interstate 64 passes through in the St. Louis area. The entire route overlaps U.S. Route 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".

Route description

Immediately following the split of Interstate 55 and Interstate 70 in Downtown Saint Louis, Interstate 64 travels through the downtown area in a double decker configuration (Eastbound lanes lower level, and Westbound lanes upper level). In this area the expressway comes within fifty feet of the New Busch Stadium. Leaving Downtown, the expressway travels near Saint Louis University and through the Central West End of the city. In the Western Portion of Saint Louis, this highway 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 off the expressway.

West of Forest Park, I-64 exits the main city and enters Saint Louis County in the City of Richmond Heights. Through here, the expressway passes through older neighborhoods, and before the reconstruction, its outdated design had narrow shoulders and substandard exit and entrance ramps. Currently the expressway is closed from Kingshighway Boulevard and I-170 for major construction to update I-64 to a more modern design I-64 Construction. The reconstruction is slated to be completed by December 7, 2009.

On the Western end of Richmond Heights, I-64 intersects Interstate 170 near the Saint Louis Galleria. The surrounding area is very congested with its many businesses and shopping centers. Continuing West, I-64 travels through affluent areas such as Ladue and Town and Country. Throughout 2008, Interstate 64 between I-170 and I-270 was closed for a complete rebuilding of the 70 year old highway. One lane in each direction was added between Spoede Road and Interstate 170 with reconstructed interchanges throughout the section. The reconstructed expressway opened to traffic on the morning of December 15, 2008

In Town and Country, I-64 intersects with Interstate 270 in a flyover interchange built in the early 1990s. West of I-270, the freeway continues into West Saint Louis County through the city of Chesterfield. After traveling through the Chesterfield Valley, the freeway crosses the Daniel Boone Bridge and enters Saint Charles County. From here, I-64 continues past an interchange with Route 94 as well as a series of interchanges converted from at grade intersections. The final intersection at Callahan Road was removed on October 14, 2009^[2], completing the US 40 conversion to I-64, ending at Interstate 70 in Wentzville.

Future

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

The Missouri Department of Transportation is currently rebuilding the stretch of I-64 from Spoede Road to Kingshighway Boulevard. The project includes new pavement on the highway, rebuilding approximately 25 bridges, reconfiguring several interchanges, and a new freeway-to-freeway interchange at Interstate 170. The section between Spoede Road and I-170 was completed and opened to traffic on December 15, 2008. The section between I-170 and Kingshighway Boulevard is closed until December 7, 2009.^[3]

Exit list

This section contains a table that is missing mileposts for one or more junctions. Please help by adding the missing mileposts.

County	Location	Mile	#[4]	Destinations	Notes
St. Charles	Wentzville			US 61 north – Hannibal	Continuation beyond I-70 / US 40 west
			1	I-70 / US 40 west – Kansas City, St. Charles	Westbound exit and eastbound entrance; signed as exits 1A (west) and 1B (east)
			1C	Prospect Road
	Lake St. Louis		2	Lake St. Louis Boulevard
			4	Route N
	O'Fallon		6	Route DD (Winghaven Boulevard)
			9	Route K – O'Fallon
	Weldon Spring		10	Route 94 – St. Charles	Westbound exit via exit 9
			11	Research Park Circle	No westbound entrance
Saint Louis	Chesterfield		14	Chesterfield Airport Road	Eastbound exit and westbound entrance
			14	Spirit of Saint Louis Boulevard	Westbound exit and eastbound entrance
			16	Long Road	Westbound exit and eastbound entrance
			17	Boone's Crossing
			19A	Chesterfield Parkway
			19B	Route 340 (Olive Boulevard, Clarkson Road)
			20	Chesterfield Parkway	Westbound exit and eastbound entrance
			21	Timberlake Manor Parkway
	Town and Country		22	Route 141 (Woods Mill Road)
			23	Maryville Centre Road	No eastbound exit
			24	Mason Road
			25	I-270  – Tulsa, Chicago, Memphis
			26	Route JJ (Ballas Road)
	Frontenac		27	Spoede Road
			28A	US 61 south / US 67 (Lindbergh Boulevard)	South end of US 61 overlap
	Ladue		28B	Clayton Road	Westbound exit and eastbound entrance
			30	McKnight Road
	Richmond Heights		31A	I-170 north – Clayton	All eastbound traffic must exit here due to reconstruction closure through Kingshighway Boulevard until December 7, 2009; westbound access to I-170 north closed until December 7, 2009
			31B	Brentwood Boulevard, Hanley Road	Eastbound access to Brentwood Boulevard only; access to Hanley Road closed due to highway reconstruction until December 7, 2009; westbound access closed until December 7, 2009
			32	Hanley Road, Brentwood Boulevard	Currently closed due to highway reconstruction until December 7, 2009
			33A	Big Bend Boulevard	Currently closed due to highway reconstruction until December 7, 2009
			33B	Bellevue Avenue	Eastbound exit and westbound entrance; currently closed due to highway reconstruction until December 7, 2009
City of St. Louis			33C	McCausland Avenue	Currently closed due to highway reconstruction until December 7, 2009
			34A	Clayton Road, Skinker Boulevard	Westbound exit and eastbound entrance; currently closed due to highway reconstruction until December 7, 2009
			34B	Hampton Avenue – Forest Park	Currently closed due to highway reconstruction until December 7, 2009
			36A	Kingshighway Boulevard	East end of New I-64 Reconstruction project; all westbound traffic must exit here due to reconstruction closure through I-170 north until December 7, 2009
			36B	Boyle Avenue	Westbound exit and eastbound entrance
			36B	Vandeventer Avenue	Eastbound exit and westbound entrance
			37A	Market Street, Bernard Street	Eastbound exit and westbound entrance
			37B	Grand Boulevard	Eastbound exit and westbound entrance
			38A	Forest Park Avenue, Grand Boulevard	Westbound exit and eastbound entrance
			38B	Market Street, 3000 West	Westbound exit and eastbound entrance
			38C	Jefferson Avenue	Eastbound exit and westbound entrance
			38D	Chestnut Street, 20th Street	Eastbound exit and westbound entrance
			39A	Market Street, 21st Street	Westbound exit and eastbound entrance
			39B	14th Street	Eastbound exit and westbound entrance
			39C	11th Street – Busch Stadium	Eastbound exit and westbound entrance
			40A	9th Street, Tucker Boulevard – Busch Stadium	Westbound exit only
			40B	Broadway, 7th Street	Eastbound exit and westbound entrance
			40C	I-55 south to I-44 west  – Memphis, Tulsa	West end of I-55 overlap; westbound exit and eastbound entrance
				I-70 west / Memorial Drive	West end of I-70 overlap; westbound exit and eastbound entrance

References

Interstate 64
Previous state: Terminus	Missouri	Next state: Illinois

External links

• Missouri Department of Transportation: The New I-64