US 40 in Kansas


US 40
Get started weskan
End Kansas City
Length 425 mi
Length 685 km
  • Colorado
  • Sharon Springs
  • Oakley
  • Oakley – Topeka:
  • Topeka
  • Lawrence
  • Kansas City
  • Missouri

According to Beautyphoon, US 40 is a US Highway in the US state of Kansas. The road forms a long east-west route through the center of the state, from the Colorado border near Weskan to the Missouri border in Kansas City. Between Exit 76 and Exit 364, US 40 is double numbered with Interstate 70 for a length of 464 kilometers. The total route is 685 kilometers long.

Travel directions

Western Kansas

West of the village of Weskan, US 40 in Colorado enters the state of Kansas from Denver, in a flat and treeless agricultural area at about 1,200 feet. Not far from here is the highest point of Kansas, which barely rises above the surroundings. US 40 is a lonely road through the prairies, with only a few villages for 70 miles to I-70. At the village of Oakley, there is an intersection with US 83, the road from Garden City in the south to McCook in Nebraska. After this, US 40 merges with Interstate 70 towards Kansas City.

Eastern Kansas

US 40/59 over the Kansas River in Lawrence.

464 kilometers east, US 40 rejoins I-70, on the east side of the city of Topeka, the capital of Kansas. The road here parallels I-70, which becomes a toll road here, the Kansas Turnpike. The road runs parallel to it for a short distance, first to the north, later to the south. One soon reaches the city of Lawrence, which has 90,000 inhabitants. Here one crosses US 59, the road from St. Joseph in Missouri to Miami in Oklahoma. The road then crosses the Kansas River, and crosses I-70 again. After this, US 40 merges with US 24, which also comes from Topekacomes via a more northerly route. Both roads will then be double numbered for the rest of the route in Kansas.

On the west side of Kansas City, US 73, which begins nearby, crosses and runs to Falls City in Nebraska, a relatively minor route, although the first section to Leavenworth is fairly busy. You then pass the Kansas Speedway, after which it connects with the Kansas City ring road, the Interstate 435. The road then forms a 2×2 trunk road through the western neighborhoods of Kansas City, which are relatively sparsely built. Closer to downtown Kansas City in Kansas, it crosses Interstate 635, Kansas City’s western bypass. After the center of Kansas City in Kansas, US 24 and US 40 merge at theInterstate 70, which brings the routes to Kansas City in Missouri.


US 40 was created in 1926. The current route was then numbered US 40S, west of Manhattan US 40 was split into US 40N and US 40S. US 40N is now US 24. In 1932 the route east of Ellsworth was paved, as was part of Hays, but the rest was an improved gravel road. During the 1930s, thousands of miles of main road in Kansas were paved, including US 40. Less than 15 years after US 40 was paved, construction began on Interstate 70, the first section of which overlaps US 40 in was opened in 1956. The Kansas Turnpike also opened in 1956between Topeka and Kansas City, but it was built parallel to US 40. West of Topeka, I-70 was built right next to US 40, the last section of which opened in 1967. US 40 is of little use as a number in Kansas, the only section that is not double-numbered with other routes (west of Oakley) is of little through importance because there are no towns of any size adjacent to it.

Traffic intensities

The western portion of US 40 is downright extinct, with only 500 vehicles per day. The double numbering with the I-70 counts 9,000, increasing to 20,000 vehicles for Topeka. Between Topeka and Lawrence, 2,500 to 6,000 vehicles run per day, and 4,000 to 14,000 for Kansas City. In Kansas City, the busiest point is at 19,000 vehicles per day.

US 40 in Kansas