Interstate 64 in Missouri
This article needs additional citations for verification. (November 2007) |
US 61 in Wentzville | ||||
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East end | ![]() ![]() ![]() St. Louis | |||
Location | ||||
Country | United States | |||
State | Missouri | |||
Counties | St. Charles, St. Louis, City of St. Louis | |||
Highway system | ||||
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Interstate 64 (I-64) passes through the Greater St. Louis area in the US state of Missouri. The entire route is concurrent with 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.[2]
Route description
I-64 begins at an interchange with
The freeway travels through the congested Chesterfield Valley, where it gains a fourth lane and then meets
East of the interchange with I-170, I-64 drops a lane and stays at three throughlanes to Clayton Road. Through here, the expressway passes through older neighborhoods and enters into the city of
History

Initial construction
Before the Interstate Highway System, US 40 was a main thoroughfare through St. Louis and Kansas City. From each state line, there were signs saying "Future I-55/I-64 Corridor" and "Future I-70 Corridor".
Reconstruction
The Missouri Department of Transportation (MoDOT) 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 I-170.
The section between Spoede Road and I-170 was closed for reconstruction on January 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 on December 7, 2009.
Exit list
County | Location | mi[1] | km | Exit | Destinations | Notes |
---|---|---|---|---|---|---|
St. Louis | Western terminus; signed as exits 1A (I-70/US 40 west) and 1B (I-70 east); exit 210 on I-70; western end of concurrency with US 40/US 61/AOTS; cloverleaf interchange | |||||
Lake St. Louis | 1.433 | 2.306 | 1C | Prospect Road | ||
3.038 | 4.889 | 2 | Lake Saint Louis Boulevard | |||
3.926 | 6.318 | 4A | ![]() | Exits 1A-B on SR 364; cloverleaf interchange | ||
4.326 | 6.962 | 4B | ![]() ![]() | |||
O'Fallon | 6.275 | 10.099 | 6 | ![]() | ||
9.995 | 16.085 | 9 | ![]() | |||
Weldon Spring | 10.726 | 17.262 | 10 | ![]() | Eastbound exit is via exit 9 | |
11.928 | 19.196 | 11 | Research Park Circle | No westbound entrance | ||
Missouri River | 13.186 | 21.221 | Daniel Boone Bridge | |||
St. Louis | Chesterfield | 13.757– 14.043 | 22.140– 22.600 | 14 | Chesterfield Airport Road | Eastbound exit and westbound entrance |
14.651 | 23.578 | Spirit of Saint Louis Boulevard | Westbound exit and eastbound entrance | |||
14.917– 16.204 | 24.007– 26.078 | 16 | Long Road / Chesterfield Airport Road | Westbound exit and eastbound entrance | ||
17.150 | 27.600 | 17 | Boone's Crossing | |||
19.221 | 30.933 | 19A | Chesterfield Parkway West | |||
19.848 | 31.942 | 19B | ![]() | |||
20.50 | 32.99 | 20 | Chesterfield Parkway East | Westbound exit and eastbound entrance | ||
20.316 | 32.695 | 21 | Timberlake Manor Parkway | |||
Town and Country | 22.553 | 36.296 | 22 | ![]() | ||
23.231 | 37.387 | 23 | Maryville Centre Drive | No eastbound exit | ||
24.186 | 38.924 | 24 | Mason Road | |||
25.886 | 41.659 | 25 | ![]() ![]() | Exit 12 on I-270 north, exits 12A-B on I-270 south | ||
26.207 | 42.176 | 26 | ![]() ![]() | Access to Mercy Hospital, Missouri Baptist Medical Center, and Covenant Seminary | ||
Frontenac | 27.745 | 44.651 | 27 | Spoede Road | ||
28.267 | 45.491 | 28A | ![]() ![]() ![]() ![]() ![]() | Eastern end of concurrency with US 61; western end of concurrency with LCT; national southern terminus of the Avenue of the Saints | ||
Ladue | 28.862 | 46.449 | 28B | Clayton Road | Westbound exit and eastbound entrance | |
30.735 | 49.463 | 30 | McKnight Road | |||
Richmond Heights | 31.770– 32.249 | 51.129– 51.900 | 31B-A | ![]() ![]() ![]() | Signed separately as exits 31B (Hanley/Brentwood) and 31A (I-170) westbound; exits 1A-B-C on I-170; southern terminus of I-170; access to St. Louis Lambert International Airport | |
32 | Laclede Station Road | Former westbound exit and eastbound entrance; removed 2007[9] | ||||
33.071 | 53.223 | 33A | Big Bend Boulevard | |||
33.462 | 53.852 | 33B | Bellevue Avenue | Eastbound exit; westbound entrance via collector road connected to exit 33A | ||
St. Louis | 33.807 | 54.407 | 33C | McCausland Avenue | ||
34.042 | 54.785 | 34A | Clayton Road / Skinker Boulevard | Westbound exit and eastbound entrance | ||
34.949 | 56.245 | 34B | Hampton Avenue / Oakland Avenue | Oakland Ave. not signed westbound; access to Forest Park and the Saint Louis Zoo | ||
36.111 | 58.115 | 36A | ![]() | Access to St. Louis Science Center, and St. Louis Community College | ||
36.722– 36.800 | 59.098– 59.224 | 36B | Tower Grove Avenue / Boyle Avenue | Tower Grove Ave. not signed westbound | ||
37.361 | 60.127 | 36C | Vandeventer Avenue | Eastbound exit and westbound entrance; access to the Missouri Botanical Garden | ||
37.750 | 60.753 | 37A | Market Street / Bernard Street | Eastbound exit and westbound entrance | ||
37.825 | 60.873 | 37B | ![]() | Eastbound exit and westbound entrance; access to Saint Louis University Hospital | ||
38.000– 38.262 | 61.155– 61.577 | 38A | Forest Park, Chaifetz Arena and Washington University | |||
38B | Market Street (3000 West) | Westbound exit and eastbound entrance; exit removed in 2020 due to the construction of CityPark | ||||
38.793 | 62.431 | 38A | Jefferson Avenue | Westbound access via exit 38B | ||
38B | CityPark | |||||
39.124 | 62.964 | 38B | 22nd Street | Access to CityPark and St. Louis Union Station | ||
39 | Market Street at 21st Street | Westbound exit and eastbound entrance; former CityPark | ||||
39.646 | 63.804 | 39A | 14th Street | Eastbound exit and westbound entrance; access to the Enterprise Center and the Stifel Theatre; entrance ramp includes direct ramp from Clark Avenue | ||
39.806 | 64.062 | 39B | 11th Street | Eastbound exit only; access to Busch Stadium | ||
10th Street / Clark Avenue | Westbound entrance only | |||||
40.011 | 64.391 | 40 | 6th Street | No westbound exit; last Missouri exit eastbound | ||
40.140 | 64.599 | 40A | 9th Street / Tucker Boulevard | Westbound exit only; access to Busch Stadium | ||
40.369 | 64.968 | 40C | ![]() ![]() ![]() ![]() | Closed; consolidated with exit 40B; was westbound exit and eastbound entrance | ||
40.407 | 65.029 | 40B | ![]() ![]() ![]() ![]() ![]() ![]() | Western end of concurrency with I-55; westbound exit and eastbound entrance; access to St. Louis Lambert International Airport | ||
Mississippi River | 40.817 | 65.689 | Poplar Street Bridge | |||
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | Continuation into Illinois | |||||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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See also
- U.S. Roads portal
References
- ^ a b Missouri Department of Transportation (October 16, 2018). MoDOT HPMAPS (Map). Missouri Department of Transportation. Retrieved October 16, 2018.
- ^ a b "Public Invited to I-64 'Fun on the Freeway'" (Press release). Missouri Department of Transportation. November 30, 2009. Archived from the original on January 8, 2010. Retrieved December 9, 2009.
- ^ "MoDOT to celebrate completion of Route 40/61 work" (Press release). Missouri Department of Transportation. October 7, 2009. Archived from the original on February 22, 2012. Retrieved October 23, 2009.
- ^ "Route 364 upgrade - Phase 3". Missouri Department of Transportation. Archived from the original on August 22, 2012. Retrieved May 2, 2012.
- ^ "The New I-64". Missouri Department of Transportation. Retrieved May 2, 2012.
- ^ Leiser, Ken. "Highway 40 to reopen Dec. 7". St. Louis Post-Dispatch. Archived from the original on December 12, 2009. Retrieved December 21, 2011.
- ^ Staff reports. "Five Highway 40 (I-64) ramps to close permanently on Feb. 3 for new soccer stadium". STLtoday.com. Retrieved March 6, 2020.
- ^ O'Malley, Beth. "Those soon-to-close Highway 40 ramps are remnants of a never-built north-south highway". STLtoday.com. Retrieved March 6, 2020.
- ^ "This week on Highway 40". St. Louis Post Dispatch. August 20, 2007. pp. C3. Retrieved April 22, 2021.