Local naming conventions for long multiplexes

[KCRoadFan]

I was just thinking about various highways that have long multiplexed sections, such as the following:

• US 1 and US 9 in New Jersey
• US 20 and NY 5 in the Finger Lakes region of New York State
• I-90 and I-94 in Wisconsin
• I-20 and I-59 in Alabama
• I-40 and I-85 in North Carolina
• I-64 and I-77 in West Virginia
• I-80 and I-90 in Indiana and western Ohio
• US 84 and US 285 in New Mexico

I would like to figure out: how do local residents of the areas where these "two-in-one" highways are located tend to refer to such roads? Do they always say both numbers, or is there a preference for one number or the other? Or is the most common reference another thing entirely, such as a name?

[thspfc]

I-39/90/94 is just called "the Interstate" by people around here.
US-12 and 14, 18, and 151 in segments is called "the Beltline".
I-39/US-51 between Portage and Wausau is actually mostly referred to as 51, since the I-39 designation is relatively new. I always refer to it as I-39 first, and only bring up US-51 if somebody gets confused.
The short WI-19/113 concurrency in Waunakee is referred to as 19.
US-18/151 between Madison and Dodgeville is generally referred to as 151, presumably because of the two US-151 is the much more important route in Wisconsin, though US-18 is longer in total.
Can't speak too much on Milwaukee, but I believe that US-45 and I-894 split the majority of the naming rights for the Zoo Freeway.

[skluth]

I don't know about today. I lived in Madison in the late 70's. We'd refer to the I-90/94 multiplex depending on destination. If going to the Dells, it was "ninety ninety-four." When going to LaCrosse, we'd just say I-90. When going to Eau Claire or the Twin Cities, we'd just use I-94. Who knows what is used today, especially with I-39 added to the mix.

Sconsi has a limit on total miles of state maintained highways which is why it has long multiplexes like WI 32/57 between DePere and Kiel. WI 32 may be the most multiplexed highway in the state with concurrencies of US 45, WI 55, US 8, WI 64, WI 22, WI 29, I-41, WI 57, US 151, and I-43.

[thspfc]

I don't know about today. I lived in Madison in the late 70's. We'd refer to the I-90/94 multiplex depending on destination. If going to the Dells, it was "ninety ninety-four." When going to LaCrosse, we'd just say I-90. When going to Eau Claire or the Twin Cities, we'd just use I-94. Who knows what is used today, especially with I-39 added to the mix.

Sconsi has a limit on total miles of state maintained highways which is why it has long multiplexes like WI 32/57 between DePere and Kiel. WI 32 may be the most multiplexed highway in the state with concurrencies of US 45, WI 55, US 8, WI 64, WI 22, WI 29, I-41, WI 57, US 151, and I-43.

I stand by my claim that WI-32 would be one of the most agonizing state routes to clinch in the nation. At least 8 hours of driving, a large chunk of which is stop-and-go city driving in Green Bay, Milwaukee, Racine, and Kenosha. Then you finally get to the IL or MI border thinking you've clinched it, only to realize you made a wrong turn at one of the three dozen street changes on the route.

[ran4sh]

Idk about the residents themselves, but the Alabama DOT seems to treat the I-20/59 overlap as I-59. The 3di to Tuscaloosa is x59 rather than x20, and on the official state map which features "straight line" type maps of the Interstates with ramp configuration diagrams for each interchange, I-59 gets one continuous map while I-20 gets a "see I-59" when reaching their merge point.

[hbelkins]

I will often hear the I-71/I-75 concurrency in Kentucky referred to as "71-75" on WKRC traffic reports.

US 23 gets precedent over its ride-alongs in its concurrencies with US 119 and US 460. However, the long US 68/KY 80 concurrency in south-central/southwestern Kentucky is often referred to as "68-80."

[74/171FAN]

US 11 and US 15 in my area is usually referred to as "11-15".  US 22 and US 322 are referred to as "22-322" or at times even the River Relief Route.

Of course, I have never heard anyone in District 5 refer to I-78 as "78-22" unsurprisingly.

[NWI_Irish96]

I-80/90 in Indiana is known as the Indiana Toll Road. Nobody calls it by its numbers.

[bassoon1986]

The ones in Louisiana tend to be called by the original route or the through route. US 79/US 80 tends to be called just Highway 80. 79 is the one that tends to hop on and off of the East-west route.

In north central Louisiana, there is no acknowledgment of US 63. Just Highway 167


iPhone

[ilpt4u]

I-64/US 40 in St Louis is "Highway Farty"  as the US 40 designation predates the I-64 designation

[SkyPesos]

When I first saw the "US 1-9" sign, I thought it meant a concurrency between US 1, US 2, US 3, US 4, US 5, US 6, US 7, US 8 and US 9

[TheHighwayMan3561]

MN:

I-94/694 - both if referring to that segment, or just 94 if referring to the greater part of the route

MN 1/169 on the iron Range: Highway 169

US 10/61: Highway 61

[fillup420]

US 15/501 in north carolina is signed as such along most of its 100 mile duplex

so is NC 24/27. Also a ~100 mile duplex

and to top it off, US 15/501 and NC 24/27 share a ~10 mile concurrency somewhere in the central part of NC

[jeffandnicole]

US 1 and US 9 in New Jersey

It's generally spoken: 1n9

[DJ Particle]

I-494/MN-5 is just "494"

I wonder how long people still called I-394 "Highway 12" after it became an Interstate.

Although not officially a multiplex, Hennepin-25 is still locally called "Highway 7"...even the street signs call it "HWY 7".

[epzik8]

The Route 2/4 duplex in Calvert County is "two-four", but US 50 and I-595 and/or US 301 is just "Route 50" since that's the one constant route on the corridor (and I-595 is unsigned anyway).

[hobsini2]

90/94 in Chicago is referred to as either the Dan Ryan or the Kennedy depending on the side of town.
In my grandmother's home town of Princeton WI, Wis 23/73 was always referred to as 23 for the 5 miles of cosigning.

[bugo]

The US 67/US 167 freeway in North Little Rock is locally known as "67-167", at least for now.

[1995hoo]

When I was a kid, US-29 and US-211 ran concurrently from Warrenton into DC and were often referred to as "29/211," but you seldom hear that now because 211 was truncated to Warrenton some 40 years ago.

The eastern side of the Beltway is signed as I-95 and I-495, but in my observation most people simply call it the Beltway, some people refer to it as I-95 (in no small part because for many years it was signed only as I-495), and some people refer to it as I-495. I can't say I've ever heard anyone refer to it with both numbers other than when specifically mentioning that both numbers are posted on signs.

I-64/US 40 in St Louis is "Highway Farty"  as the US 40 designation predates the I-64 designation

Sounds like that's a gas to drive.

[jemacedo9]

US 20 and NY 5 is called "Routes 5 and 20" at least in the Rochester area.

[jp the roadgeek]

US 5/CT 15 is referred to as The Berlin Turnpike for its 4 lane divided section, and Route 15 for its limited access section. 

Any route in New York or New England that is multiplexed with US 202 is referred to by the other route number. 

[US 89]

Let's see... Utah doesn't have a whole lot of concurrencies, and in the majority of cases one route has a definite priority. It goes without saying that any interstate/US concurrency is only known by its interstate designation.

Both the I-15/80 and I-15/84 concurrencies are just referred to as I-15. In fact a lot of people probably don't realize either 80 or 84 - especially 80 - even overlap 15 to begin with.

The only US concurrencies known by both numbers are US 6/50 in the west desert and US 89/91 from Brigham City to Logan. Maybe also 6/89, but in my experience that's just US 6 to most people. US 40/189 and 40/191 are both just US 40. US 6/191 is just US 6. US 50/89 is either too short to matter or is just "State Street" after the street it follows in Salina.

[GaryV]

Michigan only has a few concurrencies, and most of them are short.

The longest, I-75 and US-23 is usually referred to as I-75.  Our flint user from Saginaw can confirm.

The other long one was I-69 and US-27, which is now gone.  I didn't get in that area a lot, but I think it was usually referred to only as I-69.

US-2 and US-41 are concurrent around Escanaba, and I'm not sure how they are locally referred to.  Same with the longer US-41 and M-28 concurrency west of Marquette.  (Both are signed together.)

When state routes join an Interstate or US freeway, they are usually well-signed.   For example, M-55 is concurrent with I-75 in the middle of the state, about 10-12 miles as I recollect.  Both are signed.

EDIT:  I forgot - I-96 and I-275 in the Detroit metro area is known almost exclusively as 275.

[roadman65]

US 17 & 92 in Central Florida except the 20 mile overlap with US 441 where it's called out by locals as four forty-one.

US 19 & 98 in Florida is very long, but I think it's US 19 or Highway 19. From Chiefland to Perry US 27 ALT joins for 68 miles of it and is still referred by US 19.

US 441 and SR 7 in Palm Beach and Broward is referred to as State Road 7.  It goes from Golden Glades to Royal Palm Beach even though it's also in Miami-Dade too, but locals I believe call it out by street name between Golden Glades and US 41 (the two routes terminus).

[Flint1979]

When I-75 and US-23 are running concurrent between near Standish and Flint you wouldn't know you were on US-23 at all other than the signs. I have never heard anyone call it 75 and 23 or 75/23 I have always heard I-75 and that is it and it makes sense because I-75 is the through route and uses it's exit numbers so I-75 dominates US-23 even when it's running concurrent with it.