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Location: West Denver
Length: *2.82mi
W End: Jct SH 95 at Sheridan Blvd./Alameda Ave. in
Denver
E End: Jct I-25 Exit 208 in Denver
Counties: Denver
Roadway Names: Alameda Avenue
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Location: East Metro Denver
Length*: 20.41mi
W End: Jct I-25/US 285 Exit 201 in Denver
E End: Gun Club Rd./Quincy Ave. east of Aurora
Counties: Denver, Arapahoe
Places: Denver, Aurora
NHS:
- I-25/US 285 at west terminus east and then north to
Alameda Ave.
- Along 6th Ave. from I-225 to Buckley Road
Roadway Names:
- First east-west section is Hampden Avenue
- First north-south section is Havana Street
- Second east-west section is 6th Avenue
- Second north-south section is Gun Club Road
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Location: Northern Mountains > Northern Front
Range > Northeastern Plains
Length*: 250.14mi signed; 259.51mi total
W End: Jct US 40 in Granby
E End: Nebraska
border east of Laird (link to Chris Geelhart's site)
Nationally: E End: Jct IL 43 in Berwyn, Illinois
(1122mi)
Counties: Grand, Larimer, Weld, Morgan,
Washington, Yuma
Places: Granby, Grand Lake, Estes Park, Loveland,
Greeley, Evans, Garden City, Kersey, Wiggins, Fort Morgan,
Brush, Akron, Otis, Yuma, Eckley, Wray
NHS:
- US 40 east to I-76, with a gap where it's in
RMNP
- While concurrent with SH 71 in Brush
Expressway:
- Five-lane undivided on Loveland's west side
- Four-lane divided from Loveland east to the BR 34
intersection east of Greeley. Includes interchanges at I-25, west
BR 34, SH 257, 23rd Ave., and US 85
- Five-lane undivided from the east BR 34 intersection to
Kersey
- Four-lane divided from Kersey to CR 61 east of
Kersey
- Four-lane undivided from Mileposts 128 to
135 west of Dearfield
Spur Connection:
From US 34 east of Brush northeast to I-76/US 6 (Exit 92)
Business Routes:
Broken Route: Discontinuous due to an unmarked
multiplex with I-76 from Exits 66 to 75.
Mountain Passes: Going over the Continental Divide
in Rocky Mountain National Park, US 34 goes over two passes.
- The western one is Milner Pass (10,758ft; 5.4% grade
on west side)
- The eastern one is Falls River Pass (11,796ft)
Sections Closed in Winter: US 34, as Trail Ridge
Road, is closed every winter from the Colorado River
Trailhead north of Grand Lake east to Many Parks Curve west
of the US 36 intersection in RMNP. This is usually from
mid-October to Memorial Day.
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Location: East Metro Denver > Eastern
Plains
Length*: 24.53mi
W End: Jct I-70 Exit 292 west of Watkins
E End: Jct US 36 in Byers
Counties: Adams, Arapahoe
Places: Watkins, Bennett, Strasburg, Byers
Notes: So numbered because it is old US 36-40-287
before I-70 was built.
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Location: Northern Mountains > Northern Metro
Denver > Eastern Plains
Length*: 187.72mi signed; 224.71mi total
W End: Jct US 34 at Deer Ridge Junction in Rocky
Mountain National Park
E End: Kansas
border east of Idalia (link to Richie Kennedy's site)
Nationally: E End: Jct US 250 in Uhrichsville, Ohio
(1414mi)
Counties: Larimer, Boulder, Broomfield, Jefferson, Adams,
Arapahoe, Washington, Yuma
Places: Estes Park, Lyons, Boulder, Louisville,
Superior, Broomfield, Westminster, Byers, Last Chance, Cope,
Idalia
NHS: SH 119 in Boulder southeast to I-25
Freeway: Broadway/Baseline Rd./28th Ave.
interchange in Boulder southeast to I-25 Exit 217 (exit
list)
Spur Connection:
From US 36 west along Baseline Rd. in Boulder to Broadway
(SH 93)
Broken Route: Discontinuous due to an unmarked
multiplex with Interstates: From I-25 Exit 217, southeast on
I-270, east on I-70, to Exit 316 at Byers.
Roadway Names: The above freeway section is the
Denver-Boulder Turnpike, usually shortened to the Boulder
Turnpike.
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Location: North Eastern Plains
Length*: 7.57mi
S End: Jct I-76/SH 52/US 6 Exit 66 at Wiggins
N End: Jct SH 144 in Goodrich
Counties: Morgan
Places: Wiggins, Goodrich
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Location: Eastern Plains
Counties: Arapahoe, Elbert, Lincoln
Places: Byers, Deer Trail, Agate, Limon
Broken Route: Four separate sections of old US
40-287 along the I-70 southwest frontage road on the Eastern
Plains are still being state maintained. These are:
- Byers Section
- Length*: 1.81mi
NW End: Jct US 36/SH 36 in Byers
SE End: On the I-70 frontage road southeast of
Byers at CR 185 (Calhoun Rd.) - Deer Trail Section
- Length*: 6.00mi
NW End: On the I-70 frontage road adjacent to
overpass structures at I-70 MP 323.73 (southeast of
Peoria)
SE End: On the I-70 frontage road adjacent to
overpass structures at I-70 MP 329.74 (CR 42/Wall
Road) - Agate Section
- Length*: 1.99mi
NW End: On the I-70 southwest frontage road
northwest of Agate
SE End: Jct BS I-70 in Agate - Limon Section
- Length*: 0.88mi
NW End: On the I-70 southwest frontage road
northwest of Limon
SE End: Jct US 24-40-287/Spur US 24 west of
Limon
Notes: So numbered because it's old US 40-287
before I-70 was built.
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Location: North Western Slope > Central
Mountains > Metro Denver > Eastern Plains
Length*: 486.86mi
W End: Utah
border west of Dinosaur (link to Dan Stober's site)
E End: Kansas
border east of Arapahoe (link to Richie Kennedy's site)
Nationally: W End: Jct I-80 near Park City, Utah; E
End: Atlantic City, New Jersey (2054mi)
Counties: Moffat, Routt, Jackson, Grand, Clear
Creek, Jefferson, Denver, Adams, Arapahoe, Lincoln,
Cheyenne
Places: Dinosaur, Maybell, Craig, Hayden, Steamboat
Springs, Rabbit Ears Pass, Muddy Creek Pass, Kremmling, Hot
Sulphur Springs, Granby, Fraser, Winter Park, Berthoud Pass,
Empire, Golden, Lakewood, Denver, Aurora, Limon, Hugo, Kit
Carson, Cheyenne Wells
NHS:
- Utah border east to I-70 Exit 232
- Along Colfax Ave. in Denver from an indeterminate
intersection downtown (but it looks like Broadway) east
to I-70 Exit 288
- I-70 Exit 263 southeast to US 287 at Kit Carson
Expressway:
- Five-lane undivided from Golden east into
Lakewood
- Four-lane divided from the Chambers Road area in east
Aurora east to I-70
Broken Route: Discontinuous due to these unmarked
multiplexes with Interstates:
- I-70 Exit 232 at Empire to Exit 259 south of
Golden
- I-70 Exit 288 east of Aurora to Exit 359 northwest of
Limon
Mountain Passes:
- East of Steamboat Springs, Rabbit Ears Pass (9426ft;
6.8% grade)
- Intersection with SH 14, Muddy Pass (8772ft; 5.6%
grade)
- Going over the Continental Divide, Berthoud Pass
(11,307ft; 6.1% grade)
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Location: South Western Slope
Length*: 9.50mi
SE End: Jct US 160 northeast of the Four Corners
NW End: Utah border southeast of Aneth, connecting to
UT 162
Counties: Montezuma
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Location: North Metro Denver
Length*: 4.87mi
NW End: Jct SH 7 west of Lafayette
SE End: Jct US 287 south of Lafayette
Counties: Boulder
Places: Louisville, Lafayette
Roadway Names:
- North-south section is 95th Street
- East-west section is Empire Road
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Location: Northeast Metro Denver
Length*: 4.95mi
E End: Jct SH 2 in Commerce City
W End: Intersection of 104th Ave. and Colorado Blvd.
in Thornton
Counties: Adams
Places: Thornton, Commerce City
NHS: Entire length
Roadway Names: 104th Avenue
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Location: West Pueblo
Length*: 8.73mi
S End: Jct I-25 Exit 94 south of Pueblo
N End: Jct US 50 northwest of Pueblo
Counties: Pueblo
NHS: Entire length
Expressway: Four-lane divided north of SH 96/Thatcher Ave.
Roadway Names: Pueblo Boulevard
Notes: SH 45 is planned to eventually continue
northeast from US 50, ending at I-25 around Milepost 103.
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Location: Central Mountains
Length*: 6.61mi
W End: Jct SH 119 north of Black Hawk
E End: Becomes Jefferson CR 70 at the
Gilpin/Jefferson County Line
Counties: Gilpin
Places: Golden Gate Canyon State Park
Roadway Names: Golden Gate Canyon Road
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Location: Northeast Pueblo
Length*: 4.63mi
NW End: Jct I-25/US 50 Exit 101 in north Pueblo
SE End: Jct US 50/SH 96 interchange east of Pueblo
Counties: Pueblo
NHS: Entire length
Freeway: East of Dillon Dr. to east of Troy Ave. (exit list)
Roadway Names: University Boulevard is the street name, but it also has the designation César Chávez Memorial Parkway.
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Location: Central Western Slope > Central
Mountains > Southern Front Range > Arkansas Valley
Length*: 467.58mi
W End: Utah
border concurrent with I-70 (link to Dan Stober's site)
E End: Kansas
border east of Holly (link to Richie Kennedy's site)
Nationally: W End: Jct I-80 in Sacramento, Califonia;
E End: Ocean City, Maryland (3011mi)
Counties: Mesa, Delta, Montrose, Gunnison,
Saguache, Chaffee, Fremont, Pueblo, Otero, Bent, Prowers
Places: Grand Junction, Delta, Olathe, Montrose,
Gunnison, Monarch Pass, Poncha Springs, Salida, Howard,
Cañon City, Penrose, Pueblo West, Pueblo, Fowler,
Manzanola, Rocky Ford, Swink, La Junta, Las Animas, Lamar,
Granada, Holly
NHS:
- I-70 northwest of Grand Junction east to I-25 at Pueblo
- SH 47-96 in east Pueblo to Kansas
Expressway:
- I-70 southeast into Grand Junction, including
interchanges at Redlands Pkwy. and the BL 70/US 6 split
- Downtown Grand Junction to entering Delta. Includes an
interchange at CR B.5. Alternates between 4-lane divided and 5-lane undivided.
- Delta to Montrose, alternating between 4-lane divided and 5-lane undivided
- Poncha Springs to Salida, 5-lane undivided
- Parkdale to Cañon City
- Cañon City through Pueblo to Avondale,
including interchanges at SH 115 and SH 96-47.
- Rocky Ford to east of La Junta
- Las Animas to Fort Lyon, including a partial
interchange with SH 194
- US 287 west of Lamar into Lamar
Business Routes:
Auxiliary Routes:
- Truck US 50, local-maintained route bypassing downtown Montrose
- Truck US 50, local-maintained route bypassing downtown Lamar
Broken Route: US 50 is nonexistent west of Grand
Junction, disappearing at I-70 Exit 26.
Mountain Passes: West of Poncha Springs, Monarch
Pass (11,846ft; 6.4% grade).
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