End of US highway 85 |
1926-1940
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1940-1946
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1946-present
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Mileage: in 1989 AASHTO listed a figure of 1479 miles for US 85. That closely matches our own 2020 measurement, which yielded 1477.0 miles.
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That was once eastbound US 70-80, which continued ahead a few blocks to Main Street, where those routes diverged. To the left on Valley was the original south beginning of US 85. In 1946 the US 85 designation was extended southward; more info on the El Paso page.
That is an example of a Colonial Revival style customs house, which was commonly used at border stations in the northern and northeastern parts of the country (compare to the abandoned customs house on US 2 in Houlton ME). The one at Ambrose is still in use; here is a detail shot:
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Although US 85 runs all the way between the Canada and Mexico borders, its integrity has been compromised in New Mexico and Colorado. After I-25 and I-10 were built, US 85 was rerouted onto interstates all the way through NM. So apparently in 1990 the state decided it was a superfluous route, and nearly all signs have been removed. Traveling north from El Paso, the last US 85 sign drivers will see for about 560 miles is at the Texas/New Mexico border:
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A handful of US 85 signs still remain in NM, but they are all relics that refer to the historic (pre-interstate) route. Along the implied (interstate) route, there is no mention of US 85 from Texas to halfway through Colorado. Unlike New Mexico, Colorado has not completely eliminated US 85; however CDoT generally does not dual-sign US 85 where it runs concurrently with interstates. Instead, US 85 is considered to have three separate segments in the state. The southernmost segment begins at I-25's interchange 128 at Fountain... and it never rejoins I-25. Shortly after passing over I-25 (with no access to the freeway), this orphaned segment of US 85 just quietly ends at a nondescript intersection, while the road itself continues ahead as a city arterial. CDoT is severely misguided in continuing to sign a road like that with a US highway shield.
Colorado's middle segment of US 85 runs between I-25's exit 184 in Castle Rock and exit 208 in Denver (most of this stretch is referred to locally as Santa Fe Drive). This is a legitimate highway, but north of there is an implied (almost entirely unsigned) overlap with I-25 and I-70 through central Denver. Colorado's northernmost segment of US 85 begins at exit 276 on I-70, where it is finally allowed to start behaving in a manner consistent with what one expects from a US highway. US 85 runs up into Wyoming, where it gets the respect it deserves.
Colorado's middle segment of US 85 runs between I-25's exit 184 in Castle Rock and exit 208 in Denver (most of this stretch is referred to locally as Santa Fe Drive). This is a legitimate highway, but north of there is an implied (almost entirely unsigned) overlap with I-25 and I-70 through central Denver. Colorado's northernmost segment of US 85 begins at exit 276 on I-70, where it is finally allowed to start behaving in a manner consistent with what one expects from a US highway. US 85 runs up into Wyoming, where it gets the respect it deserves.
Research and/or photo credits: Chris Elbert; Alan Hamilton; Julian Macdonald; Dale Sanderson; Michael Summa; Stephen Taylor; wbaron
Page originally created 2000;
last updated Oct. 26, 2021.
last updated Oct. 26, 2021.