Length: 243.57 miles
Counties Passed through: Cherokee, Crawford, Bourbon, Linn, Miami, Johnson, Wyandotte, Leavenworth, Atchison, Doniphan
Average Annual Daily Traffic
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The last bastion of the "old" signs for the Bonner Springs Interchange on I-70 is on the K-7 bridge over the turnpike, facing eastbound traffic. This sign would eventually be replaced, on the new sign, "THIS EXIT" is replaced by a upward pointing arrow. Prior to the changes that necessitated replacement of this sign, US 73 left K-7 at State Avenue, hence the "TO" banner. 28 April 2009
Along Last Chance Road (ex-K-7) in Troy, there are several concrete intersection posts with the street names (and "Hiway 7") painted on using a basic stencil.