For instance, U.S. 50 enters Missouri on I-255 and leaves it on I-435. Any others?
US-6 enters Illinois on I-80/94 and leaves on I-74.
US 40 enters IL with I-64 and leaves on I-70
US 85 (such as it exists) enters NM with I-10 and leaves on I-25
US 87 enters WY with I-25 and leaves with I-90
Nothing for Michigan, because what enters Michigan stays in Michigan - at least as far as US and Interstate routes.
U.S. 6 enters Iowa on I-74 and leaves it on I-480.
No real examples anywhere in the Northeast. 1 and 9 on the GW (NY/NJ) and 30 (NJ/PA) on the Ben Franklin are the only examples of a US route crossing a state line on an interstate, but all cross independently at the other border (1 NY/CT and NJ/PA; 30 PA/OH; 9 NJ/DE), end at the ocean (US 30 NJ) or Canada (US 9 NY). US 202 does enter CT from NY duplexed with US 6 and leaves CT for MA duplexed with CT/MA 10.
Quote from: GaryV on November 27, 2016, 05:59:51 PM
Nothing for Michigan, because what enters Michigan stays in Michigan - at least as far as US and Interstate routes.
Except US-2. Wait - no. Wait - yes.
Quote from: JCinSummerfield on November 28, 2016, 02:03:54 PM
Quote from: GaryV on November 27, 2016, 05:59:51 PM
Nothing for Michigan, because what enters Michigan stays in Michigan - at least as far as US and Interstate routes.
Except US-2. Wait - no. Wait - yes.
And US 141.
US 24 enters Kansas on I-70 from Colorado and leaves it into Missouri on I-70. Though does it have to be a different interstate? Or is this just concurrent with an interstate on both ends of the state?
A near miss. US 77 enters Texas with I-35 from Oklahoma. It crosses from Brownsville, Texas to Mexico with US 83, but leaves the I-69E designation behind by a few blocks.
Tennessee only has single hook ups.
US 31 & I-65 down in Ardmore, TN/Ardmore, AL.
US 61/70/79 (formerly US 63) & I-55 in Memphis.
US 412 & I-155 in Dyer County across the Mississippi River to Dyersburg.
Future I-69 and US 51 over at South Fulton, TN
Quote from: jp the roadgeek on November 28, 2016, 11:26:04 AM
No real examples anywhere in the Northeast. 1 and 9 on the GW (NY/NJ) and 30 (NJ/PA) on the Ben Franklin are the only examples of a US route crossing a state line on an interstate, but all cross independently at the other border (1 NY/CT and NJ/PA; 30 PA/OH; 9 NJ/DE), end at the ocean (US 30 NJ) or Canada (US 9 NY). US 202 does enter CT from NY duplexed with US 6 and leaves CT for MA duplexed with CT/MA 10.
US 40 crosses the Del. Mem. Bridge with I-295 as well.
Quote from: dvferyance on December 01, 2016, 04:59:41 PM
does it have to be a different interstate?
Topic = U.S. Routes that enter and leave a state concurrent with
different interstates. :pan:
Quote from: TravelingBethelite on November 27, 2016, 06:45:43 PM
U.S. 6 enters Iowa on I-74 and leaves it on I-480.
As a continuation of this earlier post, US6 enters Illinois on I-74 and leaves on I-80/94 :D
mis-
Quote from: 1 on December 19, 2016, 10:58:19 PM
C:\>run Alan.exe
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NO SYNTAX ERRORS
NO ERROR IN FACT
IDENTIFIED REDUNDANCY
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C:\>_
My apologies.
Quote from: paulthemapguy on December 19, 2016, 09:52:26 PM
Quote from: TravelingBethelite on November 27, 2016, 06:45:43 PM
U.S. 6 enters Iowa on I-74 and leaves it on I-480.
As a continuation of this earlier post, US6 enters Illinois on I-74 and leaves on I-80/94 :D
See reply #1
Quote from: jp the roadgeek on November 28, 2016, 11:26:04 AM
No real examples anywhere in the Northeast. 1 and 9 on the GW (NY/NJ) and 30 (NJ/PA) on the Ben Franklin are the only examples of a US route crossing a state line on an interstate, but all cross independently at the other border (1 NY/CT and NJ/PA; 30 PA/OH; 9 NJ/DE), end at the ocean (US 30 NJ) or Canada (US 9 NY). US 202 does enter CT from NY duplexed with US 6 and leaves CT for MA duplexed with CT/MA 10.
US 40 crosses from Delaware to NJ concurrent with I-295. Of course no multiplexes on the other side. Or is that not Northeast?
Also, US 46 comes close. It used to cross from NJ into PA with I-80 (I think) and ends at the NJ/NY state line concurrent with I-95.
Removed mine also.
I know this is more likely looking for existing US routes, but historic US 10 entered Montana from North Dakota on I-94 and left into Idaho on I-90.
Quote from: kphoger on December 17, 2016, 10:22:18 AM
Quote from: dvferyance on December 01, 2016, 04:59:41 PM
does it have to be a different interstate?
Topic = U.S. Routes that enter and leave a state concurrent with different interstates. :pan:
I found one today that falls into that category. US 40 enters Missouri from Kansas on I-70 then it leaves Missouri for Illinois on I-55/64. This one now counts since the rerouting of I-70 onto the Stan Musical bridge.
Quote from: dvferyance on December 24, 2016, 10:50:04 PM
Quote from: kphoger on December 17, 2016, 10:22:18 AM
Quote from: dvferyance on December 01, 2016, 04:59:41 PM
does it have to be a different interstate?
Topic = U.S. Routes that enter and leave a state concurrent with different interstates. :pan:
I found one today that falls into that category. US 40 enters Missouri from Kansas on I-70 then it leaves Missouri for Illinois on I-55/64. This one now counts since the rerouting of I-70 onto the Stan Musical bridge.
Good catch! This one is really wacky, though. It is now apparently impossible to take US-40 from Missouri to Illinois. Here me out...
If you get off I-70/US-40 at the Stan Span, then you're following I-70 but deviating from US-40. However, US-40's logical path at the I-64 interchange does not exist: there is no exit from I-44/US-40 to I-64/US-40 in that direction of travel.
So perhaps we should reword your post to say...
Westbound, US-40 enters Missouri from Illinois on I-64, then enters Kansas on I-70. Eastbound, US-40 enters Missouri from Kansas on I-70 but never leaves. :-/ ???
Fortunately, US-40 actually just stays concurrent with I-64 until it hits I-70 in O'Fallon.
Quote from: corco on December 26, 2016, 12:19:12 PM
Fortunately, US-40 actually just stays concurrent with I-64 until it hits I-70 in O'Fallon.
Huh? US-50 does... (And old highway 50 in O'Fallon is called just plain "Highway 50," which makes navigating there for the first time fun...
Quote from: kphoger on December 26, 2016, 12:47:49 PM
Quote from: corco on December 26, 2016, 12:19:12 PM
Fortunately, US-40 actually just stays concurrent with I-64 until it hits I-70 in O'Fallon.
Huh? US-50 does... (And old highway 50 in O'Fallon is called just plain "Highway 50," which makes navigating there for the first time fun...
I think it might be O'Fallon, MO corco was talking about. I don't think US 40 is concurrent with I-44 at any point, is it? Last time I was in that area, US 40 was concurrent with I-64, at least from the IL border to a good distance west beyond US 67.
Quote from: Super Mateo on December 26, 2016, 06:58:31 PM
Quote from: kphoger on December 26, 2016, 12:47:49 PM
Quote from: corco on December 26, 2016, 12:19:12 PM
Fortunately, US-40 actually just stays concurrent with I-64 until it hits I-70 in O'Fallon.
Huh? US-50 does... (And old highway 50 in O'Fallon is called just plain "Highway 50," which makes navigating there for the first time fun...
I think it might be O'Fallon, MO corco was talking about. I don't think US 40 is concurrent with I-44 at any point, is it? Last time I was in that area, US 40 was concurrent with I-64, at least from the IL border to a good distance west beyond US 67.
Yes - O'Fallon Missouri. US-40 runs concurrent with I-64 from the bridge to I-70 in O'Fallon, Missouri.
Quote from: corco on December 26, 2016, 07:15:40 PM
Quote from: Super Mateo on December 26, 2016, 06:58:31 PM
Quote from: kphoger on December 26, 2016, 12:47:49 PM
Quote from: corco on December 26, 2016, 12:19:12 PM
Fortunately, US-40 actually just stays concurrent with I-64 until it hits I-70 in O'Fallon.
Huh? US-50 does... (And old highway 50 in O'Fallon is called just plain "Highway 50," which makes navigating there for the first time fun...
I think it might be O'Fallon, MO corco was talking about. I don't think US 40 is concurrent with I-44 at any point, is it? Last time I was in that area, US 40 was concurrent with I-64, at least from the IL border to a good distance west beyond US 67.
Yes - O'Fallon Missouri. US-40 runs concurrent with I-64 from the bridge to I-70 in O'Fallon, Missouri.
Aw, geez. How did I miss THAT??
Quote from: Avalanchez71 on December 16, 2016, 02:26:23 PM
US 412 & I-155 in Dyer County across the Mississippi River to Dyersburg.
Dammit, i was going to use Dyer County as an example.
Quote from: bzakharin on December 20, 2016, 02:10:28 PM
Also, US 46 comes close. It used to cross from NJ into PA with I-80 (I think) and ends at the NJ/NY state line concurrent with I-95.
Nope. By the time I-80 was built, US 46 had already been permanently truncated to New Jersey. And when US 46 did cross into Pennsylvania, it was a couple of miles south of where I-80 does now.
Quote from: kphoger on December 26, 2016, 12:47:49 PM
Quote from: corco on December 26, 2016, 12:19:12 PM
Fortunately, US-40 actually just stays concurrent with I-64 until it hits I-70 in O'Fallon.
Huh? US-50 does... (And old highway 50 in O'Fallon is called just plain "Highway 50," which makes navigating there for the first time fun...
US 50 follows merges onto I-44, then follows after a solo routing. It follows I-255 across the Mississippi River into Illinois and then I-64 to O'Fallon.