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Author Topic: Highways that are entirely concurrent with another highway in a state  (Read 11818 times)

Some one

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What's a highway that spends (almost) its entire journey in a state concurrent with another highway.
I.E.
I-80 in Indiana is concurrent with I-94 and I-90
US 85 in New Mexico is concurrent with I-10 and I-25
I-25/US 87 share a hidden concurrency throughout Colorado.
Most of US 421 in Virginia is concurrent with US 23 and 58
Any others?
« Last Edit: April 23, 2020, 07:47:58 AM by Some one »
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Big John

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #1 on: April 23, 2020, 12:36:35 AM »

Ask Georgia where all US and Interstate (silent) are shared with a state route.
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ozarkman417

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #2 on: April 23, 2020, 12:43:46 AM »

I-4 and FL 400 (I think most, if not all Florida interstates have State Route designations, though they may not necessarily be signed)

I-41 and US-41 in Wisconsin
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Max Rockatansky

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #3 on: April 23, 2020, 12:50:16 AM »

I-4 and FL 400 (I think most, if not all Florida interstates have State Route designations, though they may not necessarily be signed)

I-41 and US-41 in Wisconsin

Yeah Florida is an outlier though, all US Routes and Interstates have a State Road designations.  One could say the same thing about US 1 and FL 5. 
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mgk920

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #4 on: April 23, 2020, 01:06:50 AM »

US 2 and US 141 on the section that is in the Florence, WI area.

I-894 and I-41.

Mike
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Hwy 61 Revisited

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #5 on: April 23, 2020, 01:08:22 AM »

I-86 entirely overlaps NY 17. 17 has standalone sections, but it carries all of 86.
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TheHighwayMan394

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #6 on: April 23, 2020, 01:15:25 AM »

MSR 110 is entirely overlapped with other routes such as US 36 and I-88.
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sprjus4

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #7 on: April 23, 2020, 01:58:17 AM »

The southern I-87 outside Raleigh is currently fully concurrent with US-64.
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DJ Particle

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #8 on: April 23, 2020, 03:01:19 AM »

I-86 entirely overlaps NY 17. 17 has standalone sections, but it carries all of 86.
AFAIK that won't be true once I-86 is finished to the Thruway... NY-17 exits off that freeway just before it gets to the Thruway.
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jp the roadgeek

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #9 on: April 23, 2020, 04:35:36 AM »

Except for a couple of short sections, US 202 is concurrent with a handful of state routes in Maine, often several at a time.
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GaryV

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #10 on: April 23, 2020, 07:36:07 AM »

US-223 in Ohio is completely concurrent with US-23.    :-D
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Flint1979

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #11 on: April 23, 2020, 07:40:35 AM »

US-223 in Ohio is completely concurrent with US-23.    :-D
And what a waste it is too. Ohio should terminate it at the state line and Michigan should be forced to make it a state highway.
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Mapmikey

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #12 on: April 23, 2020, 08:40:58 AM »

US 23 in North Carolina is 100% concurrent with other routes.

Most of these other routes were added to existing US 23 (US 441, US 74, I-26)
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OCGuy81

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #13 on: April 23, 2020, 10:16:40 AM »

I-39 in Illinois has US 51 along its entire length
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Roadgeekteen

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #14 on: April 23, 2020, 10:54:56 AM »

I-587 with NY 28
I-393 with US 4 and US 202
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hbelkins

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #15 on: April 23, 2020, 12:22:55 PM »

WV 55 is concurrent with another route throughout its entire length except for a short segment at its western terminus between the  WV 41 intersection and US 19.

US 60 and US 62 are completely concurrent in Illinois.

Every US route in Tennessee is concurrent with another highway, either an unsigned state route or an interstate.
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Henry

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #16 on: April 23, 2020, 12:33:01 PM »

I-894 and I-41.
Yeah, on the western half. The eastern half of I-894 is concurrent with I-43.

Starting across the Mississippi River, I-64 and US 40 run concurrently through St. Louis up to the former's terminus in Wentzville.
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NWI_Irish96

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #17 on: April 23, 2020, 01:14:07 PM »

I-865 is entirely concurrent with US 52.
Until the new section gets signed, I-265 is entirely concurrent with IN 62
« Last Edit: April 23, 2020, 03:16:27 PM by cabiness42 »
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OCGuy81

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #18 on: April 23, 2020, 01:32:25 PM »

Is I-22 completely concurrent with US 78 through Mississippi and Alabama? Or were new alignments made that deviated from the existing 78 routing?
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ozarkman417

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #19 on: April 23, 2020, 02:22:13 PM »

I-155 is concurrent with US-412 for it's entire length, which spans from I-55 in the Missouri Bootheel to US-51 in Tennessee.
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Ketchup99

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #20 on: April 23, 2020, 02:45:43 PM »

I-99 is entirely concurrent with US-220 in PA. (220 has non-99 sections, but not vice versa).
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Re: Highways that are entirely concurrent with another highway in a state
« Reply #21 on: April 23, 2020, 03:21:27 PM »

I-99 is entirely concurrent with US-220 in PA. (220 has non-99 sections, but not vice versa).

As is it with US 15 in New York.
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US 89

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #22 on: April 23, 2020, 03:57:24 PM »

Several shorter interstates in the west fit this:

- I-11 is entirely concurrent with US 93
- I-515 is entirely concurrent with US 93/95
- I-580 is entirely concurrent with US 395
- I-315 is entirely concurrent with US 89 and MT 3/200
- I-270 is entirely concurrent with US 36

I-82 also comes quite close - aside from two short sections in the Tri-Cities and Hermiston areas, the entire route is concurrent with US 395, US 12, and/or US 97.

TEG24601

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #23 on: April 23, 2020, 04:51:24 PM »

Ask Georgia where all US and Interstate (silent) are shared with a state route.


Same in Washington.


And don't get me started on the Oregon Route vs Oregon Highway craziness.




To add to the list, I-182 (WA), is completely concurrent with US 12


I-84 (OR) is nearly completely concurrent with US 30.
« Last Edit: April 23, 2020, 04:54:38 PM by TEG24601 »
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sprjus4

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Re: Highways that are entirely concurrent with another highway in a state
« Reply #24 on: April 23, 2020, 05:00:26 PM »

I-69 in Texas is currently fully concurrent with US-59.
I-69E in Texas is currently fully concurrent with US-77.
I-69C in Texas is currently fully concurrent with US-281.
I-69W in Texas is currently fully concurrent with US-59.
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