Looking for state/US, state/Interstate, and US/Interstate.
Kentucky -- yes. Numerous state and US concurrencies, KY 841/I-265, and I-75/US 25-421 are examples.
West Virginia -- yes. Numerous state and US concurrencies, WV 2/I-77 and I-79/US 19 are examples.
Virginia -- yes. One stretch of I-66 also carries VA 55 and US 17.
Tennessee -- yes. I-75 has a signed concurrency with US 25W and when that route exits, it picks up a signed concurrency with TN 63.
Examples from Massachusetts:
Interstate/State - I-95/MA 128
US/State - US 5/MA 10; also MA 2/US 202
Interstate/US/State - I-95/US 3/MA 128; I-95/US 1/MA 128; also I-93/US 1/MA 3
State/State - MA 4/MA 225
Georgia: very yes.
Interstate/US, without a signed state route: I-285/US 19, I-985/US 23
Interstate/state, without a US route: I-575/GA 5
US/state, without an Interstate: literally the entire remainder of the US system in Georgia
All three: I-20/US 278/GA 12, I-75/US 41/GA 7, most of I-516
PA:
Interstate/US - common; longest ones include I-99/US 220, I-78/US 22, I-80/US 220, I-376/US 22/US 30, and there are several shorter ones
Interstate/PA - rare (I-78/PA 309, I-81/PA 309, I-80/PA 66)
US/State - there are a few, but short distance and not many (US 422/PA 26/PA 66, US 422/PA 56, US 119/PA 56, US 219/PA 56, US 11/PA 42 are examples)
I'll take a stab at Michigan, although I am no expert on the highway system:
Interstate/Interstate: I-69/96, I-69/94
Interstate/US Highway: I-75/US 23
Interstate/State Route: I-96/M-37
US Highway/US Highway: None that I know of
US Highway/State: US 131/M-46
State/State: M-40/M-89
New Jersey has I-295/CR 551. Beat that.
(Minnesota used to have I-35W/CR 62.)
New York:
-Interstate/Interstate: I-87/I-287
-Interstate/US: I-95/US 1
-Interstate/State: I-88/NY 28
-US/US: US 9/US 20
-US/State: US 20/NY 5
-State/State: NY 85/NY 443
CT examples
I-84/US-6/US-44
I-395/CT-2A
US-6/US-44
US-5/CT-15
CT-140/CT-191
Rhode Island:
I-195/US 6/US 44
US 6/RI 10
RI 103/RI 114
I don't believe that RI has an Interstate/State Route concurrency (unless US 1A where it's concurrent w/I-195 has indeed been downgraded to a state route (based on some of the trailblazer/reassurance signs along segments that are not on the highway).
There are lots of US/county and MN/county duplexes, but the US 52/CR 12 duplex near Oronoco, MN is unique because the duplex is fully signed on freeway-grade US 52.
I'll give you a all-3 in Wisconsin: I-41/ US 41&45 / WI 167
County routes don't run concurrent with anything else in Illinois. But Illinois DOES have tollways with Interstate designations, and even a state route concurrent with a tollway (I-88/IL-56).
One example each of the common concurrency types:
Interstate/Interstate: I-80/I-294
Interstate/US: I-39/US51
Interstate/State: I-290/IL-53
US/State: US67/IL-100
US/US: US24/US136
State/State: IL-47/IL-176
Zeroing in on cases where you have all three route types (which IMO are more interesting than the far-more-common two-type concurrencies, though the County Route/other concurrencies will raise eyebrows), there is I-94/US 59/MN 210 outside Fergus Falls, MN.
Regarding what TheHighwayMan394 mentioned about county/non-county concurrencies in Minnesota....the vast majority of them are implied and unsigned, but I don't believe MnDOT considers them to be official, with notable exceptions like the aforementioned US 52/CSAH 12 and (in the past) US 169/Hennepin CSAH 1. The way MnDOT approaches them, the county route has a break and then reconvenes.
California, post-1960s:
State/US
US 50: 89
numerous on US 101: 2, 170 (at one point), 23, 1 (many times), 166, 46, 156, 152, 84, 116, 128, 20.
US 395: 168, 120
Interstate/Interstate:
I-5 and I-10 in East Los Angeles
Interstate/State:
I-5: 33, 4 (until freeway project in Stockton is completed), 99 (Natomas area), (formerly 299 in Redding)
I-405: 22
I-15: 79, 18
I-215: 74, 60
I-80: 12, 113, 89
I-280: (formerly 85), 35, 1
I-680: 84, (formerly 24)
I-880: 84
Interstate/US:
I-10: US 95
I-40: US 95
No existing US/US concurrencies though US 50/99 in Sacramento, US 40/99W through West Sacramento, US 40/99E through Roseville all still existed ca. 1965-1967.
All three:
Sacramento: Business 80/(unsigned I-305)/US 50/Route 99 along the WX Freeway
Quote from: ce929wax on July 13, 2018, 11:33:05 AM
I'll take a stab at Michigan, ...
US Highway/US Highway: None that I know of
US-2 and US-41
also US-2 and US-141
Quote from: jemacedo9 on July 13, 2018, 11:11:33 AM
PA:
US/State - there are a few, but short distance and not many (US 422/PA 26/PA 66, US 422/PA 56, US 119/PA 56, US 219/PA 56, US 11/PA 42 are examples)
I would say that this is common. There are many short concurrencies between US and PA routes throughout the state. (US 30/PA 23, US 322/PA 72, US 322/PA 241, US 202/PA 263, US 209/PA 33, US 222/PA 272(twice), US 6/PA 46, US 219/PA 346, US 222/PA 741, US 30/PA 116, US 219/PA 770, US 322/PA 153 (one of the longer ones), etc.)
Quote from: froggie on July 13, 2018, 02:35:44 PM
Zeroing in on cases where you have all three route types (which IMO are more interesting than the far-more-common two-type concurrencies, though the County Route/other concurrencies will raise eyebrows), there is I-94/US 59/MN 210 outside Fergus Falls, MN.
Regarding what TheHighwayMan394 mentioned about county/non-county concurrencies in Minnesota....the vast majority of them are implied and unsigned, but I don't believe MnDOT considers them to be official, with notable exceptions like the aforementioned US 52/CSAH 12 and (in the past) US 169/Hennepin CSAH 1. The way MnDOT approaches them, the county route has a break and then reconvenes.
MN-55 and County 101 in Plymouth is another notable signed exception.
Quote from: GaryV on July 13, 2018, 04:32:20 PMUS-2 and US-41
also US-2 and US-141
I knew there was one in the UP, I just couldn't find it. I thought it was 41/141, but I think that is in Wisconsin.
New Hampshire:
I-89/NH 10
US 202/NH 11
NH 11/NH 12
I-393/US 4//US 202
No interstate/interstate
Vermont:
US 2/US 7
No interstate concurrencies with any type of Route.
VT 8/ VT 100
US 2/ VT 100
Maine:
I-395/US 1A/US 202/ME 9
ME 6/ME 15 (and US 201)
US 202/ ME 9 (or ME 4)
US 201/ US 202
I-95/ ME 15
Quote from: 74/171FANI would say that this is common.
Yes, I'd say that US/state concurrencies are quite common....almost not worth mentioning IMO. Unfortunately, that's the only type of multi-system concurrency we have in Vermont. As JP noted, we have no Interstate concurrencies (unless one wants to count the unofficial TRUCK US 2 around St J).
Quote from: MNHighwayManMN-55 and County 101 in Plymouth is another notable signed exception.
Yes, though that one stems mainly from 101 being a former state highway. A very different case than the two I mentioned upthread.
Quote from: jp the roadgeekVermont:
US 2/US 7
VT 8/ VT 100
I wouldn't count these since the OP made it fairly clear he was looking for concurrencies where the two (or more routes) are of different types. Which as noted above means we're limited to US/state concurrencies in Vermont like US 302/VT 14 or US 5/VT 12, amongst others.
North Carolina:
NC-87/US 15/501
NC-24/I-40 (this is the only State/Interstate example I know of)
US-70/I-40
Quote from: froggie on July 13, 2018, 10:01:22 PM
Quote from: MNHighwayManMN-55 and County 101 in Plymouth is another notable signed exception.
Yes, though that one stems mainly from 101 being a former state highway. A very different case than the two I mentioned upthread.
Right, I was just mentioning it as an example. Will be interesting to see if MN-5 in Chanhassen gets the same treatment if MnDOT can ever get rid of the northern MN-101 segment in Carver County.
Indiana has every type of concurrency possible on I-465 alone.
Louisiana:
US/State: Several. One example: US 71 & LA 1
Interstate/US: some: I-49/US 167 being the longest, I-55/US 51 also a fair one, I-20/US 80, I-20/US 371, and I-20/US 71, a couple of I-10/US 90, I-59/US 11, hidden I-910/Bus 90
Interstate/State: very few
I-49/LA 8
I-49/LA 28
I-310/LA 3127
I-510/LA 47
It's interesting that a good bit of interstates leaving Louisiana are water crossings, and most of them have a parallel US route now concurrent because the older bridge is now defunct that carried the US highway before the interstate highway came through.
iPhone
Quote from: HazMatt on July 13, 2018, 10:42:31 PM
North Carolina:
NC-87/US 15/501
NC-24/I-40 (this is the only State/Interstate example I know of)
US-70/I-40
I-40 Business/US 158/NC 150
Quote from: vdeane on July 13, 2018, 12:40:37 PM
New York:
-Interstate/US: I-95/US 1
And US 9 from the GWB to Broadway.
Quote from: vdeane on July 13, 2018, 12:40:37 PM
-Interstate/State: I-88/NY 28
Also, I-84/NY 52.
Florida is loaded with them, including some hidden ones, and
possible hidden ones. For example, I'm not entirely certain about FL 44 and Citrus and Sumter CRs 470.
Quote from: paulthemapguy on July 13, 2018, 02:28:59 PM
County routes don't run concurrent with anything else in Illinois. But Illinois DOES have tollways with Interstate designations, and even a state route concurrent with a tollway (I-88/IL-56).
One example each of the common concurrency types:
Interstate/Interstate: I-80/I-294
Interstate/US: I-39/US51
Interstate/State: I-290/IL-53
US/State: US67/IL-100
US/US: US24/US136
State/State: IL-47/IL-176
ISTHA also has a US Route multiplexed on a tollway...the Northern IL end of US 51 (with I-39) merges into the Jane Addams Tollway and I-90, to reach Wisconsin and points North
IL has examples of Interstate/US/IL Multiplexes, as well, such as I-255/US 50/IL 3, I-72/US 36/IL 110, and I-55/I-64/US 40/IL 3
Arizona
I-10/US 95
I-10/US 191
I-17/AZ 89A
Quote from: D-Dey65 on July 14, 2018, 08:51:30 AM
Quote from: vdeane on July 13, 2018, 12:40:37 PM
New York:
-Interstate/US: I-95/US 1
And US 9 from the GWB to Broadway.
Quote from: vdeane on July 13, 2018, 12:40:37 PM
-Interstate/State: I-88/NY 28
Also, I-84/NY 52.
Florida is loaded with them, including some hidden ones, and possible hidden ones. For example, I'm not entirely certain about FL 44 and Citrus and Sumter CRs 470.
Wasn't aiming to be comprehensive, just listing what was off the top of my head. Were we to try to be comprehensive for NY, we'd be here all day.
Quote from: ce929wax on July 13, 2018, 06:51:09 PM
Quote from: GaryV on July 13, 2018, 04:32:20 PMUS-2 and US-41
also US-2 and US-141
I knew there was one in the UP, I just couldn't find it. I thought it was 41/141, but I think that is in Wisconsin.
Also, US-10/127 north of Clare and US-23/223 in far southern Monroe County in the Lower Peninsula.
In Iowa, you can get all of them except for the Interstate/Interstate concurrency just by following IA 27, the Avenue of the Saints.
Interstate/Interstate I-35 & I-80
Interstate/US I-380 & US 218
Interstate/State I-380 & IA 27
US/US US 218 & US 34
State/State IA 27 & IA 58
US/State US 218 & IA 27
a few Ohio examples...
Interstate/US: I-70 & US 40, I-475 & US 23
Interstate/State: I-90 & OH 2, I-70 & OH 4
US/State: US 20 & OH 18, US 23 & OH 104 and many more
There are also multiple examples for State/State, US/US, and Interstate/Interstate
Quote from: Buck87 on July 15, 2018, 09:22:06 AM
a few Ohio examples...
Interstate/US: I-70 & US 40, I-475 & US 23
Interstate/State: I-90 & OH 2, I-70 & OH 4
US/State: US 20 & OH 18, US 23 & OH 104 and many more
There are also multiple examples for State/State, US/US, and Interstate/Interstate
The Buckeye State does have the uncommon 3DI concurrency in Cleveland, I-271/I-480
Quote from: ce929wax on July 13, 2018, 11:33:05 AM
I'll take a stab at Michigan, although I am no expert on the highway system:
Interstate/Interstate: I-69/96, I-69/94
Interstate/US Highway: I-75/US 23
Interstate/State Route: I-96/M-37
US Highway/US Highway: None that I know of
US Highway/State: US 131/M-46
State/State: M-40/M-89
US-10 is concurrent with both US-31 and US-127 (and was formerly concurrent with US-23 and US-24)
Off the top of my head (and closest to Seattle)
Washington:
IH/IH: None so far
IH/USH: I-90 and US 97 near Cle Elum
IH/SR: I-405 and SR 900 in Renton
USH/USH: US 2 and US 97 near Wenatchee
USH/SR: US 97 and SR 20 from Okanogan to Tonasket
SR/SR: SR 161 and SR 167 in Puyallup
Oregon (and non-legacy examples):
IH/IH: None so far; I-84 and I-205 run parallel in Portland, though
IH/USH: I-84 and US 30; I-84 and US 395
IH/SR: I-5 and OR 99/99E; I-5 and OR 138
USH/USH: US 26 and 97
USH/SR: US 197 and OR 216
SR/SR: OR 211 and 224
Michigan previously had I-296/US 131/M-37 in Grand Rapids when the rest of I-296 opened in 1962.
Turning to overlaps with county highways:
Interstate/County: none of which I'm aware
US/County: US 131/C-48 at Boyne Falls
State/County: M-123/H-40 at Trout Lake plus at least 3 others
County/County: C-66/C-77 at Cross Village, B-35/B-72 at Ravenna
Quote from: NE2 on July 13, 2018, 11:36:38 AM
New Jersey has I-295/CR 551. Beat that.
(Minnesota used to have I-35W/CR 62.)
Otherwise in NJ,
Interstate / US overlaps are common on bridges leaving the state (I-295/US 40, I-676/US 30, I-95/US1&9&46), but are otherwise uncommon. The only exceptions I can think of are I-295/US 130 and I-78/US 22
Other types of overlaps are quite a bit rarer. State routes don't tend to overlap with either US routes or Interstates. Off the top of my head US 9 has a concurrency with NJ 35, and I-78 has a concurrency with NJ 139
County Routes tend to overlap with state and US routes, especially those under county maintenance. And then there is CR 551 as mentioned above.
As for multiple roads of the same type overlapping, county routes and US routes do this frequently, while state and Interstate routes not at all (correct me if I'm wrong)
Utah doesn’t have much of a county route system to begin with (hell, most counties don’t even have them), but there’s at least one example of every other concurrency possibility. However, they may not always be signed, particularly for anything involving state routes.
Interstate/interstate: there are two, 15/80 and 15/84, both of which are very well signed.
Interstate/US: several examples, but signage can vary greatly. Some are very well signed, like 70/89. Some have decent signage, like 15/6 and the southern 15/89. Some have very little signage, like the northern 15/89. And some have no signage at all, like 80/189. There is a “quadruplex” of I-70/US 6/50/191, but only I-70 is signed.
Interstate/state: only two examples, neither of which have any signage whatsoever. I-15/SR 30 and I-84/SR 30.
US/US: several examples, almost all of which have great signage. The exception is 40/189, but most of that has been fixed (they still need to sign 189 in Heber and from the exits on the freeway segment, but at least the End 189 sign is gone now).
US/state: US 89/SR 30 (plus US 91 for a short segment) is the only one. It isn’t signed either, though there is some signage in Logan that hints at its existence.
State/state: three examples exist that I can think of — 118/120, 68/48, and 68/85. None are signed, but there is some implied concurrency signage in some cases (but in other cases, there may even be an END sign posted, like where 85 west/north meets 68).
EDIT: forgot about US 89/SR 71. The concurrency is inventoried as SR 71 and is signed as such. There is no mention of US 89 from I-15, much less any guidance that you’re supposed to go east on 123rd. Same story if you’re coming from the north. US 89 just disappears, and all you see are SR 71 and I-15 signs. No signage whatsoever that you’re supposed to go west on 71 and then south on 15.
Quote from: ilpt4u on July 15, 2018, 10:21:28 AM
Quote from: Buck87 on July 15, 2018, 09:22:06 AM
a few Ohio examples...
Interstate/US: I-70 & US 40, I-475 & US 23
Interstate/State: I-90 & OH 2, I-70 & OH 4
US/State: US 20 & OH 18, US 23 & OH 104 and many more
There are also multiple examples for State/State, US/US, and Interstate/Interstate
The Buckeye State does have the uncommon 3DI concurrency in Cleveland, I-271/I-480
Yep, which gives Ohio all 3 possible combinations of interstate concurrencies:
2DI/2DI: 80/90, 76/77, 70/71, 71/75
2DI/3DI: 74/275
3DI/3DI: 271/480
Interesting that all 8 of the 2DI's that enter Ohio have a concurrency somewhere in the state
Quote from: US 89 on July 15, 2018, 11:24:49 PM
Utah doesn't have much of a county route system to begin with (hell, most counties don't even have them)...
CT and RI don't have them and I'd be surprised if any New England state does. I was surprised when I saw that NJ has them. NY, I think, has some too, but I found that less surprising given the rural nature of some areas of the Empire State.
Quote from: jon daly on July 16, 2018, 10:26:26 AM
Quote from: US 89 on July 15, 2018, 11:24:49 PM
Utah doesn't have much of a county route system to begin with (hell, most counties don't even have them)...
CT and RI don't have them and I'd be surprised if any New England state does. I was surprised when I saw that NJ has them. NY, I think, has some too, but I found that less surprising given the rural nature of some areas of the Empire State.
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Falpsroads.net%2Froads%2Fma%2Fma_27%2Fncr.jpg&hash=1a75b20452d52823ef3a1e7ad60ed4eb32fc58e4) (alpsroads)
Maynard, MA. This is the only county route shield in New England, and it's for MA 27; the sign is erroneous.
Quote from: Bruce on July 15, 2018, 07:46:51 PM
Off the top of my head (and closest to Seattle)
Washington:
IH/IH: None so far
IH/USH: I-90 and US 97 near Cle Elum
IH/SR: I-405 and SR 900 in Renton
USH/USH: US 2 and US 97 near Wenatchee
USH/SR: US 97 and SR 20 from Okanogan to Tonasket
SR/SR: SR 161 and SR 167 in Puyallup
Oregon (and non-legacy examples):
IH/IH: None so far; I-84 and I-205 run parallel in Portland, though
IH/USH: I-84 and US 30; I-84 and US 395
IH/SR: I-5 and OR 99/99E; I-5 and OR 138
USH/USH: US 26 and 97
USH/SR: US 197 and OR 216
SR/SR: OR 211 and 224
Also: I-5 and US 30
I-82 and US 395
I-405 and US 30
I-84, US 30 and US 395
I-105 and OR 126
I-205 and OR 213
US 20 and US 395
US 20 and US 26
US 26 and US 395
US 30 and US 197
US 20 and OR 126
US 30 and OR 35
US 97 and OR 126
US 395 and US 730
US 20, US 26 and OR 201
US 395 and OR 140
US 97B and OR 39 (two discrete instances)
US 101B and OR 202
OR 18 and OR 22
OR 18 and OR 99W
OR 39 and OR 140
OR 99 and OR 126 and OR 126B
OR 212 and OR 224
OR 99 and CR 389
Quote from: Buck87 on July 16, 2018, 08:43:37 AM
Interesting that all 8 of the 2DI's that enter Ohio have a concurrency somewhere in the state
I believe only I-88 and I-24 of the 12 IL 2DIs lacks an Interstate concurrency somewhere in the state...
I-88: unless you want to call the Mile-ish long parallel segment where I-355 was built on I-88's ROW a concurrency...But the 2 Tollways never merge, just the 4 carriageways separated by Jersey Barriers before I-355 goes under I-88 at the Western end of the parallel segment
I-24: unless you want to call the continuation of the route to STL from Nashville a "Silent" concurrency on I-57 and I-64
Otherwise
I-39/90
I-55/64
I-55/70
I-55/72
I-55/74
I-57/64
I-57/70
I-74/280
I-80/94
I-80/294
I-90/94
Quote from: jon dalyCT and RI don't have them and I'd be surprised if any New England state does.
County routes, no. But Maine does have county roads that are unnumbered to the layman.
I know this is three years old, but I just ran across it and wanted to add in:
Texas:
Several examples
Interstate 35 and interstate 410 in San Antonio
Interstate 10 and Us 90 multiple times; including all the way through Houston, though 90 is unsigned.
US 290/SH 6
Beaumont has a couple of miles of road that carries (and is signed) Interstate 10/US 90/US 69/US 96/US 287
And San Antonio seems to have a lot. Like an inordinate amount of them.
There's interstate 37/US 281
Interstate 35/Interstate 410
Interstate 10/US 90
Interstate 10/US 87
Interstate 10/Interstate 35/US 87
Interstate 410/SH 16
Interstate 410/SH 16/SH 130
Interstate 10/US 90/SH 130
Interstate 410/US 281/SH 130
And I'm probably missing a few too
All of Missouri's 2di except I-57 and I-72 have some part concurrent with another interstate.
I-29: I-35, I-435
I-35: I-70, I-29
I-44: I-49, I-55
I-49: I-44
I-55: I-44, I-64, I-70 (formerly)
I-64: I-55, I-70 (formerly)
I-70: I-35, I-55 (formerly), I-64 (formerly)
As for other examples in Missouri...
I/US: I-64/US 40
I/SR: I-35/MO 110
US/US: US 61/US 67
US/SR: US 36/MO 110
SR/SR: MO 94/MO 364
Not sure if there are any concurrencies with state secondaries.