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U.S. Route 6 in Colorado

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U.S. Highway 6 marker
U.S. Highway 6
Map
US 6 highlighted in red
Route information
Maintained by CDOT
Length467.284 mi[1] (752.021 km)
Major junctions
West end I-70 / US 6 / US 50 at Utah state line
Major intersections US 50 in Grand Junction

US 24 in Minturn
US 40 near Empire
SH 470 near Golden
I-25 / US 85 / US 87 / US 287 in Denver
I-270 in Commerce City
I-76 from Commerce City to Fort Morgan
US 34 in Fort Morgan

US 385 in Holyoke
East end US 6 at Nebraska state line
Location
CountryUnited States
StateColorado
CountiesMesa, Garfield, Eagle, Summit, Clear Creek, Jefferson, Denver, Adams, Weld, Morgan, Washington, Logan, Phillips
Highway system
  • Colorado State Highway System
SH 5 SH 7

U.S. Route 6 (US 6) is a part of the U.S. Highway System that travels from Bishop, California, to Provincetown, Massachusetts. In the U.S. state of Colorado, US 6 is an east–west highway stretching from Utah to Nebraska. Much of the route overlaps other highways in Colorado, and as a result, much of US 6 is unsigned.

Route description

The 6th Avenue Freeway in Denver, Colorado, looking east from Knox Court.

US 6 is concurrent with Interstate 70 for a significant portion of its length from the Utah state line to Denver. When the highway enters the western Denver suburbs, US 6 coincidentally aligns with 6th Avenue in the grid system, where it is known as 6th Avenue Freeway. Once it reaches Interstate 25, US 6 travels north briefly, then follows Interstate 76 for most of its length east of Denver. It is unsigned while it is overlapped.

Loveland Pass in 1964

The highest altitude along US 6 is 11,990 feet (3,650 m) at Loveland Pass, where it crosses the Continental Divide. It continues down Clear Creek Valley until it reaches I-70, where it is briefly overlapped until I-70 leaves Clear Creek Valley. US 6 continues down Clear Creek and into Denver, where it turns into a freeway with 6 lanes. East of Denver, it continues east while joined with I-76 until it reaches Sterling, where it diverges from the interstate. The last town in Colorado it passes is Holyoke.

U.S. 6 in Lakewood Colorado


Major intersections

CountyLocationmi[1]kmExitDestinationsNotes
Mesa0.0000.000
I-70 / US 6 / US 50 west – Salina
Continuation into Utah
2.1943.5312Rabbit Valley Road
Mack11.10617.87311
I-70 east – Grand Junction
Eastern end of I-70 overlap
Loma15.13224.353
SH 139 to I-70 – Loma, Rangely
To I-70 via SH 139 south
Fruita19.95532.114

SH 340 east (S. Coulson Street) to I-70
Western terminus of SH 340
Grand Junction26.08041.972
I-70 / I-70 BL begins – Denver
Western end of I-70 Bus. overlap; I-70 exit 26; Diverging diamond interchange
28.24445.45424 Road north, Redlands Parkway southInterchange
30.44749.000

I-70 BL east / US 50 east – Montrose
Eastern end of I-70 Bus. and US 50 overlaps
34.85956.100
I-70 BL west
Western end of I-70 Bus. overlap
Clifton37.26759.975
SH 141 south
Northern terminus of SH 141
37.72660.714
I-70 BL east
Eastern end of I-70 Bus. overlap
46.51074.85144
I-70 west – Grand Junction
Western end of I-70 overlap; eastbound exit and westbound entrance only
47.93377.14146Cameo
49.46879.61147James M. Robb – Colorado River State Park, Island AcresFormer port of entry
51.61683.06849


SH 65 south to SH 330 east – Grand Mesa, Collbran
Northern terminus of SH 65
64.249103.39962De Beque
GarfieldParachute77.262124.34175Parachute, Battlement Mesa
83.837134.92381Rulison
89.451143.95787
I-70 east – Denver
Eastern end of I-70 overlap
Rifle91.796147.731
SH 13 north – Rifle, Meeker
Southern terminus of SH 13
110.603177.998109
I-70 west – Grand Junction
Western end of I-70 overlap
113.931183.354111South Canyon Creek Road
Glenwood Springs116.898188.129114West Glenwood
118.983191.485116 SH 82 – Glenwood Springs, AspenWestern terminus of SH 82
121.241195.118119No Name
123.743199.145121Grizzly Creek – Hanging Lake
125.263201.591123Shoshone Access RoadEastbound exit and westbound entrance only
127.664205.455125Hanging LakeEastbound exit and westbound entrance only
127.870–
128.457
205.787–
206.732
Hanging Lake Tunnel
130.918210.692129Bair Ranch Road
Eagle135.985218.847133Dotsero
Gypsum142.134228.743140
I-70 east – Denver
Eastern end of I-70 overlap
159.500256.690
SH 131 north – Wolcott
Western end of SH 131 overlap
159.889257.316

SH 131 south to I-70
Eastern end of SH 131 overlap
174.857281.405171

I-70 west / US 24 east – Minturn, Leadville
Western end of I-70 overlap
Vail177.071284.968173West Vail
179.809289.375176Vail Ski Area – Vail Museum
183.618295.505180East Vail
EagleSummit
county line
193.733311.783Vail Pass summit — elevation 10,662 feet (3,250 m)
Summit193.847311.967190Shrine Pass Road – Vail Pass rest area
199.050320.340195
SH 91 south – Copper Mountain, Leadville
Northern terminus of SH 91
201.606324.453198Officers Gulch
Frisco204.747329.508201Main Street
206.104331.692203
SH 9 south – Frisco, Breckenridge
Western end of SH 9 overlap
Silverthorne209.175336.635205

I-70 east / SH 9 north – Dillon, Silverthorne
Eastern end of I-70 and SH 9 overlaps
SummitClear Creek
county line
225.552362.991Loveland Pass summit — elevation 11,990 feet (3,650 m)
Clear Creek229.325369.063
I-70 west – Grand Junction
Western end of I-70 overlap
218.346351.394218Herman Gulch Road
221.297356.143221Bakerville
Silver Plume225.719363.260226Silver Plume
Georgetown227.910366.786228Georgetown
231.889373.189232
US 40 west – Empire, Granby
Western end of US 40 overlap
223.047358.959223LawsonEastbound exit only
234.209376.923234Downieville, Lawson
235.005378.204235DumontWestbound exit and eastbound entrance only
237.680382.509238Fall River Road
Idaho Springs238.885384.448239
I-70 BL east – Idaho Springs
239.652385.683240
SH 103 south – Mount Evans
Northern terminus of SH 103
241.125388.053241
I-70 BL westModule:Jct warning: "road" parameter is deprecated
242.980391.038243Hidden Valley, Central City
251.001403.947244

I-70 east / US 40 east – Denver
Eastern end of I-70 / US 40 overlap
257.296414.078
SH 119 north – Black Hawk, Central City
Southern terminus of SH 119
JeffersonGolden271.600437.098

SH 58 east / SH 93 north – Golden, Boulder
Western terminus of SH 58
273.397439.990
SH 470 east – Colorado Springs
CO 470 exits 0A-B northbound.
275.120442.763 US 40 (Colfax Avenue)
275.656443.625 SH 470 – Colorado SpringsWestern end of 6th Avenue freeway
276.003444.184 I-70 – Grand Junction, DenverI-70 exit 261 eastbound.
Lakewood276.998445.785Indiana Street
277.002445.792Union Boulevard, Simms Street
277.310446.287 SH 391 (Kipling Street)
278.795448.677Garrison Street
280.830451.952 SH 121 (Wadsworth Blvd)
281.984453.809 SH 95 (Sheridan Blvd)
282.330454.366Knox Court
City and County of Denver283.86456.83 SH 88 (Federal Blvd)
284.470457.810 I-25 – Colorado SpringsEastern end of 6th Avenue freeway/South end of I-25 overlap, I-25 exits 209A-B
286.272460.710209C8th Avenue
287.310462.381210A US 40 (Colfax Avenue, I-70 Bus./US 287) – Downtown Denver
287.661462.946210CAuraria ParkwayNorthbound exit and southbound entrance
288.008463.504210B17th AvenueSouthbound exit (to 20th Avenue) is via exit 211
289.167465.36921123rd Avenue
289.985466.686212Speer Boulevard – Downtown DenverSigned as exits 212A (south) and 212B (north)
290.425467.394212C20th Street
291.479469.090213Park Avenue, West 38th Avenue
290.090466.855214A

I-25 north / I-70 west – Fort Collins, Grand Junction
North end of I-25 overlap/Western end of I-70 overlap
292.815471.240275AWashington StreetEastbound signed exit 274
293.226471.902275B
SH 265 north (Brighton Boulevard)
Southern terminus of SH 265
292.661470.992275CYork Street / Josephine StreetEastbound exit and westbound entrance
293.194471.850276A

I-70 east / US 85 north
Eastern end of I-70 overlap (final)

SH 2 south (Colorado Blvd)
West end of SH 2 concurrency
AdamsCommerce City294473 I-270 – Boulder, LimonI-270 exits 2A-B.
294.550474.032
SH 2 east
Eastbound exit and westbound entrance; east end of SH 2 concurrency
295.995476.358
I-76 west – Arvada
Western end of I-76 overlap, exit 9 westbound.
296.466477.1161088th Avenue
297.114478.1591196th Avenue
298.345480.14012
US 85 north – Greeley, Brighton
Eastern end of US 85 overlap; no eastbound entrance
Commerce City302.285486.48116 SH 2 (Sable Boulevard) – Denver International AirportModule:Jct warning: "road" parameter is deprecated
304.661490.30418
E-470 south – Limon, Denver International Airport
Westbound exit and eastbound entrance
Brighton305.219491.20220136th Avenue
307.828495.40121144th Avenue
308.626496.68522Bromley Lane
310.994500.49625
SH 7 west – Lochbuie, Brighton
Eastern terminus of SH 7
WeldHudson316.269508.98631 SH 52 – Hudson, Fort Lupton
319.220513.73534Kersey Road
324.160521.68539Keenesburg (I-76 Bus. south)
333.302536.39848Roggen
334.007537.53249Painter RoadWestbound exit and eastbound entrance
342.652551.44557County Road 91
345.225555.58660
SH 144 east – Orchard
Western terminus of SH 144
Morgan348.226560.41564WigginsEastbound exit and westbound entrance
350.314563.77666A SH 39 / SH 52 – Goodrich, Wiggins
350.535564.13166B
US 34 west – Greeley, Estes Park
Western end of US 34 overlap; westbound exit and eastbound entrance
357.219574.88873Long Bridge Road
359.789579.02475

US 34 east / I-76 BL east – Fort Morgan
Eastern end of US 34 overlap
364.054585.88879 SH 144 – Weldona
Fort Morgan365.243587.80280 SH 52 – Raymer, Fort Morgan
366.993590.61882Barlow Road – Fort Morgan
370.076595.58086Dodd Bridge Road
373.368600.87889Hospital Road
375.042603.57290
SH 71 to US 34 – Brush, Akron, Limon, Snyder
Signed as exits 90A (south) and 90B (north)
379.192610.250
I-76 east – Sterling
Eastern end of I-76 overlap, exit 92.
Washington
No major junctions
LoganAtwood405.187652.085
SH 63 south – Akron
Northern terminus of SH 63
Sterling412.061663.148
SH 14 west – Fort Collins
Eastern terminus of SH 14
412.689664.159
US 138 east – Julesburg
Western terminus of SH 138
414.116666.455 I-76 – Fort Morgan, JulesburgI-76 exit 125.
414.317666.779
SH 61 south – Otis
Northern terminus of SH 61
Fleming431.121693.822
SH 55 north
Southern terminus of SH 55
PhillipsHaxtun444.295715.023 SH 59 – Yuma, Sedgwick
Holyoke457.213735.813 US 385 – Wray, Julesburg
467.284752.021
US 6 east – Imperial
Nebraska state line; eastern terminus of US 6 in Colorado
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

KML is from Wikidata
  1. ^ a b Colorado Department of Transportation, Highway Data Archived October 8, 2007, at the Wayback Machine, accessed July 2007

Colorado Highways: US 6


U.S. Route 6
Previous state:
Utah
Colorado Next state:
Nebraska