End of US highway 40 |
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1927-1936
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1936-1966
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1966-1975
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1975-present
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The east end of US 40 has been on the Jersey Shore since the US routes were first commissioned in 1926; more info on the Atlantic City page.
Originally the west end of US 40 was in Oakland CA. After ten years, the Bay Bridge opened to traffic, and US 40 was extended to San Francisco. Those historic endpoints are detailed on the Bay Area page.
Originally the west end of US 40 was in Oakland CA. After ten years, the Bay Bridge opened to traffic, and US 40 was extended to San Francisco. Those historic endpoints are detailed on the Bay Area page.
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US 40 ended in California for about 40 years, but the designation was completely eliminated from the state in 1966. For the next decade or so, its west end was at Reno NV (or more likely at the CA stateline on the edge of town). Here is a photo from the historic US route junction downtown:
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Elbert, Mar. 2005
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That was looking south on Virginia Street (old US 395) at Fourth Street (old US 40). In 1975 US 40 was removed from Nevada, and most of Utah as well. Since then the west terminus of US 40 has been at a place called Silver Creek Junction: at I-80, on the outskirts of Park City UT. The view in this next photo is to the northwest at the interchange that was then numbered 148; the white pickup is heading east on I-80:
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Stober
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In 2000 (a few years after that photo was taken), this interchange was undergoing major reconstruction. This photo was from basically the same vantage point as the shot above...
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Taylor, 2000
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...but it was not long afterwards that this junction was significantly changed. This shot shows the exit sign for the west beginning of US 40, as seen from westbound I-80:
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Field/Nitzman, Sep. 2005
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The interchange now has flyover ramps. Also note that this exit number was affected when UDoT recalculated the mile markers along its interstates: this is now interchange 146. Here we're looking the opposite direction (east on I-80):
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Sanderson, Oct. 2005
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If one takes that exit to the right, the first eastbound confirming marker is posted where the roadway straightens out:
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Field/Nitzman, Sep. 2005
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The westernmost 12 miles of US 40 is now a freeway, all the way down to U-32 near Heber City. Signage for the first eastbound exit (Silver Summit) is barely visible in the distance. The frontside of the sign bridge at far left is shown in this photo. It is interesting that a westbound US 40 marker was posted within sight of the west end of the designation:
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Sanderson, Oct. 2005
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At that point, US 40 traffic wanting westbound I-80 to Salt Lake has already been directed along the opposite side of the concrete barrier at far left, and will use the flyover visible in the distance. However, if one gets on US 40 from the Silver Summit interchange, they are not allowed to cut across traffic to get to the flyover. Instead, drivers must continue straight ahead towards Silver Creek Road. Near the big green sign at far right (which directs east I-80 traffic to the right), there is a gore in the roadway, in which this assembly was posted:
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Sanderson, Oct. 2005
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At the time, that was a new "End US 40" sign, but it did not last long... it had already been replaced by 2010...
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Elbert, July 2010
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...and in 2017 a reference to US 189 was added, which was an important milestone (for the reason why, see the US 189 page).
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Rand, Aug. 2018
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For the first ten years of its existence, there was a significant split in the route of US 40. West of Manhattan KS, "US 40N" followed what is now US 24 to Limon CO (until 1936). Today's US 40 follows what used to be "US 40S" between Manhattan and Limon.
And it gets even more interesting: at Limon was the west terminus of US 40N, and US 40 continued west through Denver as it does today. But there was still a US 40S to the west of Limon*. It followed what is now US 24 through Colorado Springs and to Minturn CO. From there, US 40S followed what would later become US 6 (better known today as I-70) to Grand Junction, where the designation ended at its junction with US 50. In other words, the west segment of US 40S did not reconnect with mainline US 40. More info can be found on the Grand Junction page.
This situation lasted until 1935 or 1936; at that point, the US 24 designation was extended west of Kansas City along its present route. In other words, it replaced US 40N between Manhattan and Limon, and it followed the former US 40S from Limon to Grand Junction. US 40S from Manhattan to Limon became simply US 40.
* It remains unclear whether there were actually two separate routes called "US 40S" (each heading opposite directions from Limon), or whether US 40S was a single route, overlapped with US 40 along a four-mile stretch through Limon.
And it gets even more interesting: at Limon was the west terminus of US 40N, and US 40 continued west through Denver as it does today. But there was still a US 40S to the west of Limon*. It followed what is now US 24 through Colorado Springs and to Minturn CO. From there, US 40S followed what would later become US 6 (better known today as I-70) to Grand Junction, where the designation ended at its junction with US 50. In other words, the west segment of US 40S did not reconnect with mainline US 40. More info can be found on the Grand Junction page.
This situation lasted until 1935 or 1936; at that point, the US 24 designation was extended west of Kansas City along its present route. In other words, it replaced US 40N between Manhattan and Limon, and it followed the former US 40S from Limon to Grand Junction. US 40S from Manhattan to Limon became simply US 40.
* It remains unclear whether there were actually two separate routes called "US 40S" (each heading opposite directions from Limon), or whether US 40S was a single route, overlapped with US 40 along a four-mile stretch through Limon.
Research and/or photo credits: Chris Elbert; Andy Field; Alex Nitzman; Charles Rand; Dale Sanderson; Dan Stober; Steven Taylor
Page originally created 2000;
last updated Aug. 22, 2018.
last updated Aug. 22, 2018.
