Same road signed as different routes in each direction

[TheStranger]

Not necessarily the same as a multiplex/corouting (though sometimes this is the case), but I know California has a few examples of a route being signed differently on each carriageway.  Wonder if this is common elsewhere....

Excluding instances in which a route heading from its final exit immediately towards its terminus becomes signed for the route it ends at (though some of these cases certainly apply as such)...two cases of this (with Google Maps' help) -

- US 50 along the WX segment of the Capital City Freeway in Sacramento is signed US 50/Business 80 eastbound between I-5 and Route 99...
http://bit.ly/CJH9W

but westbound on US 50 (starting past the WX segment, on the El Dorado Freeway in East Sacramento), ends up being several different things altogether, none mentioning the US highway:

* To I-80 West: http://bit.ly/4shWa4 (at Exit 7, Stockton Blvd)
* Route 99 North/TO I-80 and TO I-5: http://bit.ly/vIhrR (at Exit 6B, Route 99 South)
* Business 80 West: http://bit.ly/282HaW (right before Exit 5, 16th Street)

- The US 101 segment of the Santa Ana Freeway in Los Angeles is signed for its last two miles, from at least the San Bernardino Split southbound, as US 101/I-5, even though I-5 doesn't take over the Santa Ana Freeway until the East Los Angeles Interchange (and the 101/5 multiplex south of there has not existed now for 40-41 years): http://bit.ly/ll0ut
Likewise, this sign from the Four-Level interchange claims that southbound I-5 follows the Santa Ana Freeway all the way to the latter's terminus!
http://bit.ly/zahV8
And this one right after the Four-Level does not acknowledge US 101 at all, instead marking this first mile of the Santa Ana Freeway as "I-10/I-5 San Bernardino/Santa Ana" - http://bit.ly/2PNBVR - seems that US 101 doesn't get mentioned again until the San Bernardino Split.

Northbound, where I-5 moves onto the Golden State Freeway, the route is only signed for US 101: http://bit.ly/1ieK4X

- Speaking of 101 in Los Angeles, the Four-Level interchange offers yet another instance of "diverging designations", where according to signage both past and present - including the recent replacement reflectorized signs with exit numbering - I-110 covers the entirety of the Harbor Freeway, as opposed to ending at I-10 near the Staples Center:
http://bit.ly/7NiQl
http://bit.ly/qhbXe

On the entire southbound Harbor Freeway between 101 and 10, the interstate status is indeed signed, starting with this gantry right after the Four-Level:
http://en.wikipedia.org/wiki/File:I110SBndEnteringTheSlot.jpg

Conversely, the southbound Pasadena Freeway right before the Four-Level shows no hint of I-110, though it also mentions the "I-5/US 101" double designation for the tail end of the Santa Ana Freeway, as opposed to the correct syntax of "US 101 TO I-5 SOUTH":
http://bit.ly/3y0bUW
Northbound 110 on the other hand has the exit for southbound 101/Santa Ana Freeway labeled as "I-5 South/I-10 East": http://www.davestravelcorner.com/articles/los-angeles/Freeways/LosAngeles-Freeways.jpg

Also, the northbound Harbor Freeway from I-10 on is never acknowledged as part of the interstate:
http://bit.ly/wmtlD
http://bit.ly/yQcc4
http://bit.ly/ttv2Y

- I-80 west from the end of the Bay Bridge onwards is mostly signed for "US 101 South - San Jose" starting at a full two miles (and three or so exits) before the terminus of the route:
http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=Bay+Bridge,+San+Francisco,+CA&sll=38.549851,-121.393727&sspn=0.007266,0.013797&ie=UTF8&ll=37.788493,-122.388237&spn=0.001836,0.003449&z=18&layer=c&cbll=37.788423,-122.388314&panoid=YoT61ygY4oCDDvm5_DYyVQ&cbp=12,248.42,,0,-8.3

[flowmotion]

Wondering if this practice is specific to CalTrans. (Maybe it should be cross-referenced in the "Odd Things Some DOT's Do" thread)

[leifvanderwall]

I think this phenomenon happens a lot in Florida. Take for instance Fl. 61 in the Panhandle. It actually muliplexes w/ US 319 although noone knows it because 61 is not signed until US 319 is put on Capital Circle. Then 61 south meets US 27 & multiplexes with 27 through downtown Tallahassee , but the only people who know about the partnership are the drivers on US 90 westbound where it is only signed at the junction. Then US 27 turns onto the Apalachee Pkwy, but drivers  going southbound don't know that. However they do know that SR 61 goes straight because it is signed, not 27. Northbound drivers on the Apalachee Pkwy don't know that US 27 even meets FL. 61 because there is only a "To US 90" sign. Where is this intersection ? Right in front of the state capitol.

Well SR 61 is signed very well from the Apalachee to Capital Circle, and is mulitplexed with US 319 again. In fact, there is green sign saying "NORTH US 319, SR 61." A mile later, SR 61 goes on its own again, but when it crosses the Wakulla County line it turns into County 61.  The drivers would not know that unless they saw the little tiny sign saying "State Maintenance Ends". In fact, you do not see a Pentagon 61 sign until you go pass Wakulla Springs State Park(FL 267). Oh by the way, CR 61 does meet US 319 just north of Crawfordsville and you will be greeted by an ancient yellow US 319 sign.

[froggie]

Somewhat related to the OP, there are a couple of one-way street segments in downtown Newport News, VA where you are officially on both EB US 60 and WB US 60.

[hbelkins]

Somewhat related to the OP, there are a couple of one-way street segments in downtown Newport News, VA where you are officially on both EB US 60 and WB US 60.

Probably some similar weirdness taking place in downtown Louisville where US 31 comes into Kentucky and promptly splits into US 31W and US 31E with the routes traversing a series of one-way streets (and US 60 is thrown into the mix).

[TheStranger]

Somewhat related to the OP, there are a couple of one-way street segments in downtown Newport News, VA where you are officially on both EB US 60 and WB US 60.

Isn't Truck US 19 famous for this in Pittsburgh?

[rmsandw]

I remember AR 440 SB from U.S. 67 being signed I-440, while NB AR 440 is signed as AR 440 from I-40 to U.S. 67.  The BGS's on U.S. 67 sign it as AR 440.

[jdb1234]

North Blvd in Montgomery is signed eastbound as TO US 231 and westbound as TO I-65.

[vdeane]

The Berkshire spur of the Thruway is signed TO: I-90 heading east and TO: I-87 heading west.

[TheStranger]

I've never been on it, but IIRC Route 259 in San Bernardino is signed for its connecting routes (210 (30) east, 215 south) depending on which direction you go in...

[TheStranger]

Saw a new one on Friday afternoon in Sacramento: Business 80/US 50 wesbound/Route 99 north on the WX Freeway...is now signed at Exit 5 (15th Street) as...

Interstate 80!

While that stretch of road WAS Interstate 80 before 1982, I-80 now runs about 4-5 miles to the north on the former 880 bypass.  This also would fit in with the odd Caltrans habit noted above of a route being signed for its terminus's route miles before it gets to the end of the highway...