List of Interstate Highways in Colorado

Interstate Highways in Colorado
Interstate 70 marker Interstate 225 marker Interstate 76 Business marker
Standard highway markers for Interstate 70, Interstate 225, and Interstate 76 Business
Highway names
Interstates Interstate X (I-X)
Business routes: Interstate X Business (I-X Bus.)
System links
Colorado State Highways

Mainline highways

Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
I-25 305.04490.91 I-25 at the New Mexico state lineI-25 at the Wyoming state line ——
I-70 449.51723.42 I-70 at the Utah state lineI-70 at the Kansas state line ——
I-76 183.99296.10 I-70 in ArvadaI-76 at the Nebraska state line ——
I-225 11.9919.30 I-25 in DenverI-70 in Aurora and Denver ——
I-270 5.358.61 US 36 and I-25 in unincorporated Adams CountyI-70 in Denver ——

Business routes

This list is incomplete; you can help by expanding it.
Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
I-25 Bus. 1.943.12 Aguilar ——
I-25 Bus. 3.946.34 Walsenburg ——
I-25 Bus. 6.7510.86 Colorado Springs ——
I-70 Bus. 13.3621.50 Grand JunctionClifton ——
I-70 Bus. 0.170.27 Silt ——
I-70 Bus. 0.270.43 Eagle ——
I-70 Bus. 0.520.84 Edwards ——
I-70 Bus. 2.544.09 Idaho Springs ——
I-70 Bus. 26.8043.13 West Pleasant ViewAurora —— Also serves Lakewood and Denver
I-70 Bus. 0.310.50 Watkins ——
I-70 Bus. 0.300.48 Strasburg ——
I-70 Bus. 0.310.50 Deer Trail ——
I-70 Bus. 0.300.48 Agate ——
I-70 Bus. 2.804.51 Limon ——
I-70 Bus. 0.510.82 Vona ——
I-70 Bus. 1.802.90 Burlington ——
I-76 Bus. 0.300.48 Keenesburg ——
I-76 Bus. 50.0080.47 Fort MorganSterling —— Also serves Brush, Hillrose, Merino, and Atwood

See also

  • Colorado portal
  • U.S. Roads portal

References

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