Intersecting the interstate and U.S. route of the same number

[Kacie Jane]

Not sure if this is a good topic for a thread or not, but it's been on my mind.  This thread was (I'm assuming) meant for cases within the same state that are ostensibly easily confused.  But then kphoger made this post that got me thinking:

I-90
US-5 & I-5

So I wonder, how often is it that a highway intersects the interstate and the U.S. route of the same number?

(For obvious reasons, I-74 and US 74 in North Carolina doesn't count.    But I-75 intersecting I-74 in Ohio (at its terminus) and US 74 in Tennessee (also at its terminus) does count.  )

[kphoger]

......as everyone consults a map of the Midwest......

[kphoger]

Or, to word it another way:
How many highways can you come up with that intersect US-65 and I-65, or US-40 and I-40? 

[Kacie Jane]

I conceded that I was unsure of the quality of this topic.   And I figured there'd be a couple of pairs that were good candidates, but not spectacularly confident of which pairs those would be.

[Kacie Jane]

And consulting pages 2-3 of my RMcN, and looking only at interstates, I've got:

Intersect both 65s: 20, 40, 70
Intersect both 40s: 25, 35, 44(?), 55, 65, 75, 77, 81, 95

[agentsteel53]

to make this a bit tougher, the intersecting route cannot be an interstate or a US route.  it can be a multi-state route with the same number.

the only one I can think of is NC-49 hitting both US-74 and I-74.  there are probably others; 49 is the first one I checked.

I could not find any route in Illinois that hit both US-24 and I-24. 

[Big John]

I-65:  I-90 is northern terminus, and US 90 is the 1st exit north of its southern terminus of I-10

[Mapmikey]

to make this a bit tougher, the intersecting route cannot be an interstate or a US route.  it can be a multi-state route with the same number.

the only one I can think of is NC-49 hitting both US-74 and I-74.  there are probably others; 49 is the first one I checked.

I could not find any route in Illinois that hit both US-24 and I-24. 

AR/MO/IA 5 crosses US 70 and I-70 but falls about 20 miles short of the I-30/US 30.  A gap in AR prevents it from doing I-40/US 40 as well
NC/VA/WV 16 crosses US 64 and I-64
NC/VA 32 misses also crossing those by less than 5 miles
NC/VA 32 also misses crossing US 264 and I-264 by fewer than 10 miles
When fully built out there will certainly be some state route qualifiers for the 49s and 69s.

Both US 13 and US 17 cross US 264 and I-264...is this the only 3-digit pair that has an example for any kind of route?

Nope.  I-80 crosses US 287 and I-287.  I-95 and US 1 cross US 278 and I-278.  How about US 90 with US 165 and I-165? I-20 does US 285 and I-285.  US 85 does US 180 and I-180.  I-75 does US 280 and I-280.

Mapmikey

[agentsteel53]

AR/MO/IA 5 crosses US 70 and I-70 but falls about 20 miles short of the I-30/US 30.  A gap in AR prevents it from doing I-40/US 40 as well

awesome!  I had never noticed this MSR before.

[NWI_Irish96]

I-95 intersects both I-4 and US4.  This is the lowest possible occurrence since I-4 is the lowest numbered interstate.

I-75 intersects both US280 and I-280 (Ohio).  There are higher numbers that exist as both interstate and US highways, but I haven't found any that have a common intersector.

[Molandfreak]

I-10 and I-20 intersect US 49 and I-49

[KEVIN_224]

I-95 intersects both I-4 and US4.  This is the lowest possible occurrence since I-4 is the lowest numbered interstate.

I-95 at the eastern terminus of US Route 4 would involve the Portsmouth Traffic Circle in New Hampshire. US Route 4 also intersects the "free" portion of I-90 in East Greenbush, NY, roughly a mile before US Route 4's western terminus at US Routes 9 and 20 (southeast of Albany).

[agentsteel53]

I-75 intersects both US280 and I-280 (Ohio).  There are higher numbers that exist as both interstate and US highways, but I haven't found any that have a common intersector.

where does I-395 change number to I-290?  if it is at the Mass Pike, then I-90 intersects both US-395 and I-395.

[burneraccount]

I-75 intersects both US280 and I-280 (Ohio).  There are higher numbers that exist as both interstate and US highways, but I haven't found any that have a common intersector.

where does I-395 change number to I-290?  if it is at the Mass Pike, then I-90 intersects both US-395 and I-395.

It is at the Mass Pike.

[agentsteel53]

Google Maps shows the change at US-20, but Google Maps shows lots of things.

[deathtopumpkins]

Northbound signage is right where the ramp from the pike merges in: http://goo.gl/maps/TvsSy
Though there does not appear to be any corresponding southbound signage that I can find in Streetview, and I've only driven the transition northbound.

[pianocello]

I-80 hits both the interstate and US routes of these: 15, 35, 65, 69, 71, 75, 77, 81, and 95. It also crosses the former alignments of US-25, 99, and 55.

[Molandfreak]

I-80 almost meets both I-99 and CA 99... CA 99 still counts as a sub for US 99 in my book, I-99 is debatable in the fact that it doesn't specifically meet I-80 (that is only implied)

[adt1982]

to make this a bit tougher, the intersecting route cannot be an interstate or a US route.  it can be a multi-state route with the same number.

the only one I can think of is NC-49 hitting both US-74 and I-74.  there are probably others; 49 is the first one I checked.

I could not find any route in Illinois that hit both US-24 and I-24. 

US 45 does.  In fact, it is multiplexed with US 24 and crosses I-24 twice.

[roadman]

Northbound signage is right where the ramp from the pike merges in: http://goo.gl/maps/TvsSy
Though there does not appear to be any corresponding southbound signage that I can find in Streetview, and I've only driven the transition northbound.

There are indeed signs marking the I-290 west bound to I-395 southbound transition.

http://www.interstate-guide.com/images290/i-290_ma_wt_02.jpg

[KEVIN_224]

Those signs should be placed further south. Granted, that is I-90/Massachusetts Turnpike crossing the bridge in the picture, taken in Auburn, MA. However, mile marker 0 appears right around where the above-mentioned ramps merge into the roadway northbound. It's interesting to note that the exit numbers do not reset there either, since the Connecticut state line is less than 10 miles away heading south from that point.

[Brandon]

to make this a bit tougher, the intersecting route cannot be an interstate or a US route.  it can be a multi-state route with the same number.

the only one I can think of is NC-49 hitting both US-74 and I-74.  there are probably others; 49 is the first one I checked.

I could not find any route in Illinois that hit both US-24 and I-24. 

US 45 does.  In fact, it is multiplexed with US 24 and crosses I-24 twice.

However, as Jake pointed out, there is no state route that does the same.

[PHLBOS]

Those signs should be placed further south. Granted, that is I-90/Massachusetts Turnpike crossing the bridge in the picture, taken in Auburn, MA. However, mile marker 0 appears right around where the above-mentioned ramps merge into the roadway northbound. It's interesting to note that the exit numbers do not reset there either, since the Connecticut state line is less than 10 miles away heading south from that point.

Once the state converts to mile marker-based exit numbering in the forseable future, chances are the exit numbers will likely show a reset at I-90/Mass Pike.

[jp the roadgeek]

Other than I-4 and US 4, I-95 also intersects I-20 and US 20, I-40 and US 40, I-64 and US 64, I-90 and US 90, I-80 and US 80, I-76 and US-76, I-78 and US 78

[bassoon1986]

US 50 intersects I-66 and old US 66