U.S. 40

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U.S. 40 travels 486.92 miles in Colorado, entering the state at Dinosaur and departing into Kansas east of Arapahoe. Through northwestern reaches of the state, U.S. 40 joins the county seats of Craig, Steamboat Springs and Hot Sulphur Springs to the Rocky Mountains. South from Granby, U.S. 40 ascends across Berthoud Pass at an elevation of 11,315 feet to Empire and Interstate 70.

Interstate 70 overlays U.S. 40 east through Idaho Springs. East into Jefferson County, the US highway emerges as a frontage road for the freeway to El Rancho, and again from Genesee Park to Mount Vernon Canyon. Through Golden, Lakewood, Denver and Aurora, U.S. 40 combines with Business Loop I-70 along Colfax Avenue.

Colfax Avenue and Interstate 70 converge in east Aurora, with U.S. 40 and 287 joining the freeway on a hidden concurrency to Limon. The US highway pair branch southeast from I-70 and U.S. 24 at Limon to Kit Carson. U.S. 287 heads south to Eads while U.S. 40 continues to Cheyenne Wells and Wallace County, Kansas.

U.S. 40 Colorado Highway Guides


U.S. 40 west
U.S. 40 westbound merges onto Interstate 70 at Genesee Park. Section B of U.S. 40 begins 2.4 miles to the west from SH 74 at El Dorado. Photo taken 02/02/02.
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U.S. 40 west and U.S. 6 converge at the west end of Clear Creek Canyon. U.S. 40 (Route 040B) ends, with U.S. 6 merging onto I-70 west through Idaho Springs. SH 119 ties into U.S. 6, 2.8 miles to the east. Photos taken 08/29/04.



Photo Credits:

02/02/02, 08/29/04 by AARoads

Connect with:
Interstate 25
Interstate 70
U.S. 6
U.S. 24

Page Updated 05-04-2017.