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List of U.S. Highways in Colorado

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From Wikipedia, the free encyclopedia
U.S. Highways in Colorado
U.S. Highway 6 marker
U.S. Highway 40 marker
U.S. Highway 160 marker
Standard highway markers for U.S. Highway 6, U.S. Highway 40 and U.S. Highway 160
Map
U.S. Highways in Colorado highlighted in red
Highway names
US HighwaysU.S. Highway X (US X)
System links
  • Colorado State Highway System

The U.S. Highways in Colorado are the segments of the national United States Numbered Highway System that are owned and maintained by the state of Colorado. The longest of these highways is U.S. Highway 160 (US 160), which spans 497.223 miles (800.203 km)[1] across southern Colorado. The standards and numbering for the system are handled by the American Association of State Highway and Transportation Officials (AASHTO) while the routes in the state are maintained by the Colorado Department of Transportation (CDOT).

Mainline highways

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Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
US 6 467.284[2] 752.021 I-70/US 6/US 50 near Mack US 6 near Holyoke 01931-01-011931 current
US 24 277.319[3] 446.302 I-70 near Minturn US 24 near Burlington 01936-01-011936 current
US 34 259.529[4] 417.671 US 40 in Granby US 34 near Wray 01939-01-011939 current
US 36 224.718[5] 361.649 US 34 at Deer Ridge in Rocky Mountain National Park US 36 near Idalia 01926-01-011926 current
US 38 — — Greeley US 38 at the Nebraska state line 01926-01-011926 01931-01-011931 Became part of US 6 and US 34
US 40 486.924[6] 783.628 US 40 west of Dinosaur US 40 east of Arapahoe 01926-01-011926 current
US 40N — — US 40 in Limon US 40N at the Kansas state line 01926-01-011926 01935-01-01c. 1935 Became part of US 24
US 40S — — US 40N in Limon Grand Junction 01926-01-011926 01935-01-01c. 1935 Became parts of US 24 and US 40
US 50 467.583[7] 752.502 I-70/US 6/US 50 near Grand Junction US 50/US 400 near Holly 01926-01-011926 current
US 84 27.924[8] 44.939 US 160 near Pagosa Springs US 84 near Chromo 01941-01-011941 current
US 85 309.542[9] 498.160 I-25/US 85/US 87 near Trinidad US 85 near Eaton 01926-01-011926 current
US 87 298.879[10] 480.999 I-25/US 85/US 87 near Trinidad I-25/US 87 01936-01-011936 current Entirely concurrent with Interstate 25 within the state.
US 138 59.823[11] 96.276 US 6 near Sterling US 138 near Julesburg 01926-01-011926 current Orphan route. Was a spur of US 38 before it became part of US 6.
US 160 497.223[1] 800.203 US 160 near Teec Nos Pos, Arizona US 160 near Walsh 01930-01-01c. 1930 current Original western terminus was Trinidad. Extended via US 85 and US 450 to near Dove Creek in 1934. Rerouted west of Cortez via US 164 in 1970 toward Four Corners Monument.
US 164 40.290[12] 64.840 US 164 near Four Corners Monument Cortez 01964-01-011964 01970-01-011970 Became part of US 160 west of Cortez
US 285 263.947[13] 424.782 US 285 near Antonito I-25 in Denver 01936-01-011936 current Originally terminated on Alameda Ave. at US 85/US 87. In 1969, rerouted to terminate at US 40 (Colfax Ave.) in Aurora. Truncated at I-25 in Denver in 1979.
US 287 385.223[14] 619.956 US 287/US 385 near Campo US 287 near Virginia Dale 01935-01-011935 current
US 350 72.718[15] 117.028 US 160 near Walsenburg US 50 in La Junta 01926-01-01c. 1926[16] current
US 385 317.631[17] 511.178 US 287/US 385 near Campo US 385 near Julesburg 01958-01-011958 current
US 400 14.814[7] 23.841 US 50/US 385 in Granada US 50/US 400 near Coolidge, Kansas 01996-01-011996 current Entirely concurrent with US 50 within the state
US 450 — — US 450 at the Utah state line US 85/US 87 in Walsenburg — 01939-01-011939 Now US 491 north of Cortez and US 160 from Cortez to Walsenburg
US 491 69.602[18] 112.014 US 491 north of Shiprock, New Mexico US 491 north of Dove Creek 02003-01-012003[19] current Formerly US 666
US 550 130.219[20] 209.567 US 550 near Durango US 50 in Montrose 01926-01-011926 current
US 650 — — — — 01927-01-01c. 1927 01936-01-011936 Now SH 291 through Salida and US 285 south of Buena Vista
US 666 69.602[18] 112.014 US 666 north of Shiprock, New Mexico US 666 north of Dove Creek 01926-01-01c. 1926 02003-01-012003[19] Now US 491
US 789 — — New Mexico state line Wyoming state line — — Proposed, but never commissioned; would have followed (south to north): US 666, US 160, US 550, US 6/US 24, SH 13
  •       Former

Special routes

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Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes

US 6 Byp. 		— — — — — — Served Colorado Junction

US 24 Bus. 		— — Manitou Springs Colorado Springs — —

US 34 Bus. 		— — — — — — Serves Estes Park

US 34 Bus. 		— — — — — — Serves Greeley

US 34 Bus. 		— — — — — — Served Brush

Temp. US 40 		— — Steamboat Springs Kremmling — —

US 50 Bus. 		— — Pueblo Avondale — —

US 50 Bus. 		— — — — — — Serves Olathe

US 85 Byp. 		— — Fountain Colorado Springs — —

US 85 Bus. 		— — — — — — Serves Brighton

US 85 Bus. 		— — — — — — Serves Fort Lupton

US 85 Bus. 		— — — — — — Serves Platteville

US 85 Bus. 		— — — — — — Serves Greeley

Temp. US 87 		— — — — — — Served Denver

US 160 Bus. 		— — — — — — Serves Mancos

US 160 Bus. 		— — — — — — Serves Durango

US 160 Bus. 		— — — — — — Serves Bayfield

US 350 Byp. 		— — — — — — Serves Trinidad

US 550 Bus. 		— — — — — — Serves Durango
  •       Former

See also

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References

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  1. ^ a b "Highway Explorer". CDOT OTIS: Online Transportation Information System. Colorado Department of Transportation. Archived from the original on September 10, 2012. Retrieved September 29, 2017.
  2. ^ "Highway 006J between 371.69 and 467.284". Colorado Department of Transportation. Retrieved April 9, 2023.
  3. ^ "US 24 inventory form" (PDF). Colorado Department of Transportation. Retrieved April 9, 2023.
  4. ^ "Highway 034B between 158.485 and 259.529". Colorado Department of Transportation. Retrieved April 9, 2023.
  5. ^ "Highway 036D between 89.21 and 224.718". Colorado Department of Transportation. Retrieved April 9, 2023.
  6. ^ "Highway 040H between 386.01 and 486.924". Colorado Department of Transportation. Retrieved April 9, 2023.
  7. ^ a b "Highway 050B between 315.709 and 467.583". Colorado Department of Transportation. Retrieved April 9, 2023.
  8. ^ "Highway 084A between 0 and 27.924". Colorado Department of Transportation. Retrieved April 9, 2023.
  9. ^ "Highway 085L between 265.849 and 309.542". Colorado Department of Transportation. Retrieved April 9, 2023.
  10. ^ "Highway 025A between 0 and 298.879". Colorado Department of Transportation. Retrieved April 9, 2023.
  11. ^ "Highway Data Explorer". CDOT OTIS: Online Transportation Information System. Colorado Department of Transportation. Archived from the original on September 10, 2012. Retrieved September 29, 2017.
  12. ^ "Highway 160A between 0 and 40.290". Colorado Department of Transportation. Retrieved April 9, 2023.
  13. ^ "Highway Explorer". CDOT OTIS: Online Transportation Information System. Colorado Department of Transportation. Archived from the original on September 10, 2012. Retrieved September 29, 2017.
  14. ^ "Highway 287C between 282.7 and 385.223". Colorado Department of Transportation. Retrieved April 9, 2023.
  15. ^ "Highway Explorer". CDOT OTIS: Online Transportation Information System. Colorado Department of Transportation. Archived from the original on September 10, 2012. Retrieved September 29, 2017.
  16. ^ "US 350 Inventory Form" (PDF). Colorado Department of Transportation. Retrieved April 9, 2023.
  17. ^ "Highway 385E between 313.849 and 317.631". Colorado Department of Transportation. Retrieved April 9, 2023.
  18. ^ a b "Highway Explorer". CDOT OTIS: Online Transportation Information System. Colorado Department of Transportation. Archived from the original on September 10, 2012. Retrieved September 29, 2017.
  19. ^ a b Linthicum, Leslie (July 31, 2003). "It's Now US 491, Not US 666". Albuquerque Journal. Retrieved September 29, 2017.
  20. ^ "Highway 550B between 20.916 and 130.219". Colorado Department of Transportation. Retrieved April 9, 2023.
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