Future I-49, a north-south highway (I assume it will be signed N-S) is paired up with US 90, an east-west highway. East-west I-30 is paired up with north-south US 67 for most of its length. What are some other corridors that are paired up this way? The US highway can either be duplexed with the interstate or it can run parallel to the freeway. I'm looking for long stretches, not short overlaps.
I-71 and US 42 serves as the classic example (as both routes exist almost entirely parallel to each other with endpoints not far apart).
I-55 and US-66 prior to the latter's decommissioning.
Quote from: TheStranger on June 09, 2015, 02:13:04 PM
I-71 and US 42 serves as the classic example (as both routes exist almost entirely parallel to each other with endpoints not far apart).
Despite its E-W number, isn't US 42 signed N-S in Ohio, same as I-71?
US-40 (east-west) parallels I-95 (north-south) between Baltimore (where I-70 which US-40 has been following until then ends) and the Delaware Memorial Bridge.
Quote from: Brandon on June 09, 2015, 02:18:25 PM
I-55 and US-66 prior to the latter's decommissioning.
I think the jury is out on that one, as in Illinois I have seen no cardinal directions on that one. Just "CHICAGO" and "ST. LOUIS" as directional headers the same as Canada's QEW uses for directions. One well known roadgeek once told me years ago and had pictures to prove it.
Anyway back to the topic both US 67 and I-30 are such.
US 23 and I-26 in TN and NC.
US 11 and I-20 along the I-59 duplex in MS and AL.
Future I-49 and US 90 in southern LA.
US 61 and I-10 between Baton Rouge and New Orleans.
I-20 and US 1 from Augusta GA to Camden SC.
I'm sure we had a thread about this before.
Classics are I-77 / I-81 at Wytheville, VA and I-75 / US-23 in the Toledo area - because they are reverse directions.
I-66 (E-W) and US 29 (N-S) are parallel from Gainesville to Washington DC, where 66 ends.
Some NC examples:
US-64 (EW) with I-495 (NS) between Raleigh and Rocky Mount
US-117 (NS) with I-40 (EW) between Faison and Wilmington
US-311 (NS) with I-74 (EW) between Winston-Salem and I-73
Quote from: usends on June 09, 2015, 02:27:03 PM
Quote from: TheStranger on June 09, 2015, 02:13:04 PM
I-71 and US 42 serves as the classic example (as both routes exist almost entirely parallel to each other with endpoints not far apart).
Despite its E-W number, isn't US 42 signed N-S in Ohio, same as I-71?
Yes it is.
1. I-90 and US 51 between Rockford, IL and Portage, WI
2. I-90 and US 87 between Buffalo, WY and Billings, MT.
3. I-94 and US 41 between Chicago and Milwaukee
4. I-75 and US 24 between Toledo and Detroit
Quote from: DandyDan on June 10, 2015, 07:19:54 AM
4. I-75 and US 24 between Toledo and Detroit
US 24 is signed north-south through Michigan.
...for a brief stretch in Williamsport PA, I-180 (EW) is with US 15 (SN) and US 220 (NS)...and yes, US 15 and US220 are opposite-direction concurrencies.
Quote from: bzakharin on June 09, 2015, 03:13:27 PM
US-40 (east-west) parallels I-95 (north-south) between Baltimore (where I-70 which US-40 has been following until then ends) and the Delaware Memorial Bridge.
To add to this:
Going over the Delaware Memorial Bridge, 295 is North-South, 40 is East-West. Technically, US 40 is properly labeled. On 295, you are actually going slightly North on 295 South, and vice versa.
US 2 with both I-89 and I-95, although those might not be long enough sections.
Quote from: bulldog1979 on June 10, 2015, 08:16:35 AM
Quote from: DandyDan on June 10, 2015, 07:19:54 AM
4. I-75 and US 24 between Toledo and Detroit
US 24 is signed north-south through Michigan.
And they're on two completely separate roads with M-125 in between.
30 years ago I-95 and US 1 in CT were, as US 1 back then was signed E-W there.
Quote from: roadman65 on June 10, 2015, 01:38:34 PM
30 years ago I-95 and US 1 in CT were, as US 1 back then was signed E-W there.
I-84/US 6/US 202 (all E/W) are quadplexed with US 7 (N/S) through Danbury
US 41 (north-south) and I-24 (east-west) parallel each other from I-24's eastern terminus in Chattanooga all the way to Hopkinsville, Ky.
These are fairly common in Washington:
US 12 (E-W) with I-5 (N-S) from Grand Mound to Centralia
US 97 (N-S) with I-90 (E-W) in the vicinity of Ellensburg
US 97 (N-S) with I-82 (E-W) from Ellensburg to Union Gap
US 395 (N-S) with I-90 (E-W) from Ritzville to Spokane
What about I-2 and US 83 in the Rio Grande Valley of Texas?
Quote from: mwb1848 on June 11, 2015, 12:06:19 AM
What about I-2 and US 83 in the Rio Grande Valley of Texas?
US 83 is signed east-west in the Valley.
If you're going for brief ones, I-95 (and US-1 and US-9) N-S are multiplexed with US-46 (E-W) from approaching the George Washington Bridge to the mid-span where US-46 ends. I-676 (N-S) on the NJ side is briefly multiplexed with US-30 (E-W). On the PA side both are E-W.
Quote from: roadman65 on June 09, 2015, 03:27:53 PM
Anyway back to the topic both US 67 and I-30 are such.
Did you read my original post?