East
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A parclo interchange joins I-70/U.S. 40 with W Union Road at Exit 347.
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Previous guide signs for Exit 351 displayed just Frontage Road.
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I-70/U.S. 40 cross Mission Creek ahead of the half diamond interchange (Exit 351) with Patton Road.
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Patton Road was historically part of K-10 leading east from U.S. 40/K-99 near Alma to Topeka.
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K-4 follows a stair stepped route northeast from Dover to combine with I-70/U.S. 40 east at Exit 353.
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The eastbound ramps at the parclo interchange (Exit 353) with K-4 (Auburn Road) originally tied into adjacent SW 10th Avenue. SW 10th Avenue (old K-10) was eventually relocated southward away from the ramp system.
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Prior to being realigned onto Interstate 70, K-4 continued east into Topeka along 21st Street to Gage Boulevard north.
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K-4 follows Auburn Road 2.02 miles south to a western turn around Western Hills Golf Club.
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East
K-4 joins I-70/U.S. 70 east for 13.23 miles to the East Topeka Interchange.
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Interstate 470 branches southeast from I-70 at Exit 355. The 13.72 mile long loop connects with the Kansas Turnpike southwest to Wichita.
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U.S. 75 combines with the western leg of Interstate 470 from I-70 to a separate freeway leading south to Topeka Regional Airport (FOE).
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U.S. 75 combines with I-470 east from the directional T interchange at Exit 355.
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Originally a wye interchange joined I-70-U.S. 40/K-4 east with I-470 east. U.S. 75 utilized Wannamaker Road south from a half cloverleaf interchange just to the east to connect with the freeway loop south.
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U.S. 75 north combines with I-70-U.S. 40/K-4 east just ahead of the folded diamond interchange with Wannamaker Road at Exit 356.
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Construction in 1990/92 added the flyover taking U.S. 75 from I-70 west onto I-470 east.
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East 
North
U.S. 75 north overlaps with Interstate 70 east for 1.98 miles.
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The diamond interchange (Exit 357A) with Fairlawn Road replaced what was a split diamond interchange with ramps at SW 6th Avenue.
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Exit 357A departs I-70 east for Fairlawn Road at West Southwest Topeka. There is no Exit 357B in either direction.
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U.S. 75 north next parts ways with I-70-U.S. 40/K-4 east at what as previously numbered Exit 358.
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Sign changes made by 2021 added Holton for the continuation of U.S. 75 north from Topeka.
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U.S. 75 spurs north along a freeway to NW 62nd Street near Elmont and continues along an expressway to the Jackson County seat of Holton.
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Ramps link the directional T interchange for U.S. 75 north with the adjacent parclo interchange at Gage Boulevard.
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East
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Elevating over the Topeka street grid, Interstate 70 curves south along the Polk-Quincy Viaduct into Downtown.
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The narrow Polk-Quincy Viaduct was constructed in the early 1960s. Construction in the mid-2020s will replace the aging bridge system.
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I-70-U.S. 40/K-4 navigate through a sharp curve into the split diamond interchange (Exit 361B) at 3rd and Monroe Streets.
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Townsite Tower rises just west of I-70 at 534 S Kansas Avenue. The 17 story building was painted an iron-ore color over Summer 2021.1
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I-70 converges with the east end of Interstate 470 and the Kansas Turnpike at the East Topeka Interchange (Exit 366) where U.S. 40/K-4 turn north toward Tecumseh.
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Interstate 70 east leads onto the Kansas Turnpike toward Lawrence beyond the directional T interchange (Exit 366) with the two lane freeway spur taking K-4 north to U.S. 24.
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I-70 east at the toll collection point beyond the Oakland Expressway (U.S. 40/K-4). The East Topeka Interchange was constructed from 1997 to 2001.
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Sources:
- "Townsite Tower in downtown getting new look." WIBW TV-13 (Topeka, KS), June 23, 2021.
Photo Credits:
- 10/17/04 by AARoads.
- 06/18/15 by AARoads.
- 06/19/15 by AARoads.
- 10/31/16 by AARoads and JP Nasiatka.
- 10/06/21 by AARoads.
Connect with:
U.S. 40
U.S. 75
Highway 4
Page Updated 11-03-2021.