I-64-U.S. 40 West / U.S. 61 North - St. Louis County

The on-ramp from McCausland Avenue adds a fourth westbound lane to Exit 33A with Big Bend Boulevard.

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Big Bend Boulevard leads north from the diamond interchange at Exit 33A to Clayton and Fontbonne University and south to Maplewood and Webster Groves.

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Exit 31B departs in one half mile for Hanley Road and Brentwood Boulevard at the commercial center of Richmond Heights.

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A high-speed directional interchange (Exit 31A) replaced a partial interchange with Interstate 64 and U.S. 40 during the "The New I-64"project. Interstate 170 ventures north through University City, Overland and Berkeley, providing a direct route from I-64 to St. Louis Lambert International Airport (STL).

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A collector distributor roadway was constructed from Hanley Road to I-170 north and Brentwood Boulevard during the 2008-09 construction. Addition of the frontage road was part of work to replace the six-ramp parclo interchange at Hanley Road with a split-diamond.

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Traffic joins I-64/U.S. 40 west from Big Bend Boulevard ahead of the Boland Place overpass. Decorative overpasses identify the street name of all roads passing over the freeway throughout the "The New I-64" project area.

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Westbound at the Exit 31B off-ramp on I-64/U.S. 40. Hanley Road heads north from Maplewood on a parallel course to I-170 to Berkeley. Brentwood crosses paths with I-170 north of the St. Louis Galleria mall to Downtown Clayton.

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The right lane defaults onto a flyover ramp (Exit 31A) joining Interstate 170 north to University City and Berkeley.

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I-170, the Inner Belt, was completed from U.S. 40 north to Interstate 270 in 1983. Cancelled plans extended the route southward from Interstate 64 to I-55 in south St. Louis County.

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Flyovers travel above I-64/U.S. 40 to join the freeway with I-170 north to STL Airport. The original exchange between the two routes included a loop ramp from south to east and no direct access from east to north.

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Motorists along I-64/U.S. 40 west leave the city of Richmond Heights in one half mile at McKnight Road (Exit 30) and cross Ladue to Lindbergh Boulevard.

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McKnight Road straddles the Ladue and Brentwood city line south to a crossing of Deer Creek. The road links I-64/U.S. 40 with Rock Hill at Missouri 100 (Manchester Road).

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Shields posted for I-64/U.S. 40 west after the Brentwood Road on-ramp and ahead of the Mc Cutcheon Road overpass. The freeway nips the northwestern corner of Brentwood at Exit 30.

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Entering the diamond interchange (Exit 30) with McKnight Road on I-64/U.S. 40 west. The residential through road ventures north to Ladue Road, just west of its interchange with Interstate 170.

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Winding by a forested area north of Deer Creek between Exits 30 and 28B on Interstate 64 west.

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Clayton Road returns to I-64/U.S. 40 through the city of Ladue. Lindbergh Boulevard (U.S. 67 and U.S. 61 south) line the western city limits to a SPUI (Exit 28A) in 1.25 miles. Spoede Road in Frontenac rounds out the entries on this distance sign.

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Clayton Road leads west from Richmond Heights through residential areas of Ladue to a commercialized stretch southwest from Conway Road to Exit 28B. Clayton Road continues west to U.S. 61/67 (Lindbergh Boulevard), just south of Exit 28A.

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U.S. 61/67 combine along Lindbergh Boulevard north from Mehlville, Sunset Hills, Kirkwood, Huntleigh to split at Exit 28A. U.S. 61 joins I-64/U.S. 40 west to Wentzville while U.S. 67 north remains along Lindbergh Boulevard north to Creve Coeur, Bridgeton, Hazelwood and Florissant.

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Spoede Road (Exit 27) represents the lone Frontenac city exit from I-64/U.S. 40 west. Ballas Road (Exit 26) precedes Interstate 270 as the first of four exits for Town and Country.

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A folded diamond interchange (Exit 27) joins I-64/U.S. 40-61 with Spoede Road. Spoede Road stems north from parallel Clayton Road as a residential through road leading to Ladue Road (former Highway AB) and Missouri 340 (Olive Road) in east Creve Coeur.

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U.S. 40/61 combine with I-64 west to Interstate 70 at Wentzville. This is the initial segment of the Avenue of the Saints corridor leading north to the Twin Cities in Minnesota.

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Interstate 270, the St. Louis beltway, crosses paths with I-64/U.S. 40-61 in one mile. A turbine interchange (Exit 26) joins the two routes. It replaced a cloverleaf interchange during construction between 1988 and 1993.

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A parclo interchange (Exit 26) with Ballas Road precedes Interstate 270 in eastern reaches of Town and Country. Ballas Road was formerly a part of Highway JJ, a 2.50 mile route from I-64 south to Missouri 100 in Des Peres. The portion within Town and Country was decommissioned, leading to the greenout on Exit 26 overheads.

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Ballas Road transitions into New Ballas Road north from I-64/U.S. 40-61 through the city of Creve Coeur. The road ends at Missouri 340 (Olive Boulevard), just east of the SPUI with Interstate 270.
All traffic to Interstate 270 leaves the westbound freeway in one half mile.

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A double lane drop occurs on I-64-U.S. 40/61 west at Exit 25 for Interstate 270. I-270 is signed as the bypass route for I-55 south to Memphis and I-55 north to Chicago, Illinois.

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I-270 consists of a commuter route north to Maryland Heights and Bridgeton and south to Kirkwood and Sunset Hills as part of its 50.6 mile route between Mehlville and Troy, Illinois.

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A flyover carries motorists onto Interstate 270 south to Des Peres. The freeway ends in 12 miles at Interstate 55, where I-255 takes over east to the Jefferson Barracks Bridge.

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Northward I-270 travels through Creve Coeur eight miles to Bridgeton and I-70. The portion of I-270 between Interstates 55 and 70 was designated as Interstate 244 until 1974.

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