U.S. Route 66 in Kansas new Interstate highway crossed directly from Oklahoma to Missouri, bypassing Kansas entirely. US-69 Alternate was formed in 1985 when US-66 was decommissioned; the remainder of US-66 in Kansas became K-66. The final (1985) alignment of US-66 therefore perfectly matches present US-69 Alternate and K-66. Coming from the west, US 66 entered Kansas from Oklahoma, concurrent with US-69 Alternate, also called Military Avenue. From the state line, the highway ran north through Baxter Springs. At the intersection of US-66 with West 30th Street, the highway originally traveled east onto West 30th Street and then north onto Roberts Road to get back
U.S. Route 75 in Kansas 4 miles north of the state line. South of Neodesha, US 75 overlaps with US 400 as a 2 lane freeway. At Interstate 35 (I-35), US 75 becomes a two-lane expressway again, passing east of Melvern Lake. About 15 miles south of Topeka, the highway becomes a four lane freeway. US 75 crosses the Kansas Turnpike without any direct access and drivers must use I-470 to access the turnpike. US 75 runs around the main part of the city along I-470 and I-70. Leaving Topeka, US 75 becomes its own route again. Between Hoyt and Holton, the highway runs along