US, Interstate routes that cross only once but with no interchange

[hbelkins]

What are examples of US and Interstate routes that cross only once but do not have a direct interchange? For this exercise, I prefer to use only mainline (one- or two-digit) interstates. And although I'm listing my examples by state, I'm including the entire length of each route.

In Kentucky:
I-64 -- US 31, US 421, US 25. There are no interchanges at these routes. Technically, Exit 65 at Midway offers access to US 421, but the route is not signed on I-64 (at one time, one advance exit sign eastbound signed it briefly, but the US 421 designation was removed before I could get a photo, and besides, the intersecting route is KY 341 at this exit).
I-65 -- US 31E and US 60. No interchange for Main or Market streets in Louisville.
I-75, I-24, and I-71 -- no examples. Each route has an interchange for each US route it only encounters once (such as US 60 for I-75.)

In Ohio:
I'm aware of I-71/US 35, as the new alignment of US 35 has no direct interchange, and access is provided by OH 435 (old US 35), so it counts for purposes of this discussion. Doesn't the same situation apply for I-75/US 30?

In Pennsylvania:
I-70/76 and US 219 qualifies. The Somerset exit is signed for US 219 but it actually uses a collection of state routes to make the connection.

[sprjus4]

I-95 with US-60 and US-360 in Richmond, VA.

Both US-60 and US-360 are concurrent crossing under the I-95 Downtown Viaduct / James River Bridge complex with no connections.

US-60 and US-360 are both east-west routes, I-95 is north-south.

US-60 and US-360 both have interchanges with I-95's bypass route, I-295.

[hotdogPi]

I-90 and US 7

[Roadgeekteen]

I-87 and US 44.

[frankenroad]

What are examples of US and Interstate routes that cross only once but do not have a direct interchange? For this exercise, I prefer to use only mainline (one- or two-digit) interstates. And although I'm listing my examples by state, I'm including the entire length of each route.

In Ohio:
I'm aware of I-71/US 35, as the new alignment of US 35 has no direct interchange, and access is provided by OH 435 (old US 35), so it counts for purposes of this discussion. Doesn't the same situation apply for I-75/US 30?

Yes - connection is via OH-696.

[jmacswimmer]

-I-70 & US 11 in Hagerstown MD (immediately southeast of the 70/81 interchange)
-I-83 & US 40 in Downtown Baltimore

[webny99]

I-90 and US 20 cross 3 times in New York State alone, and none of those 3 crossings have an interchange. There is a direct interchange between the two, but it's not at one of the crossings.

Obviously, there are plenty of I-90/US 20 interchanges in other states that disqualify it, but it's an interesting one from a purely NY perspective.

[webny99]

I believe I-90 & US 11 in Syracuse qualifies.

[ilpt4u]

I-88 (IL) and US 52 in Dixon

[NWI_Irish96]

I-80/90 and US 35 in LaPorte County, IN

[Mapmikey]

I-95 with US-60 and US-360 in Richmond, VA.

Both US-60 and US-360 are concurrent crossing under the I-95 Downtown Viaduct / James River Bridge complex with no connections.

US-60 and US-360 are both east-west routes, I-95 is north-south.

US-60 and US-360 both have interchanges with I-95's bypass route, I-295.

I-95 NB has a direct ramp to US 360 WB but it is signed for US 33-250...

Other examples:
I-40 and US 301
I-95 and US 70 Bypass
I-70 and US 11

[TheHighwayMan3561]

Minnesota - none
Wisconsin - none

[sprjus4]

I-95 NB has a direct ramp to US 360 WB but it is signed for US 33-250...

Missed that part, you're correct.

Other examples:
I-95 and US 70 Bypass

Not sure if this would necessarily count as it's a small bypass routing. US-70 mainline does interchange with I-95.

[sprjus4]

I-64 crosses over US-19 in Beckley, WV without any connections.

[US 89]

Back before US 40 was decommissioned west of Park City, there was no interchange where it crossed I-15 in Salt Lake City.

[bassoon1986]

Louisiana:
I-49 & US 79/US 80 in Shreveport
I-12 & US 51 (it does with Bus 51) in Hammond


iPhone

[hbelkins]

I-64 crosses over US-19 in Beckley, WV without any connections.

Actually, there is a connection -- and that's all it used to be until that connection was extended as part of the East Beckley bypass.

Until the bypass was built, this was similar to the US 522 Fort Littleton exit on the PA Turnpike. It's also signed for US 19.

https://goo.gl/maps/8EDeXZygifwEeWa47

[Eth]

I-20 and US 41. There's also no direct access to US 19 and US 29, although there is an exit signed for those two routes eastbound (exit 56A).

[sprjus4]

Actually, there is a connection -- and that's all it used to be until that connection was extended as part of the East Beckley bypass.

It's a connector ramp to US-19, but it's not an actual interchange where US-19 crosses I-64.

webny99's example above is similar in nature where there's a connector ramp, but there's no interchange where the two routes actually cross.

[webny99]

Minnesota - none
Wisconsin - none

Long distance toll roads:
Minnesota - none
Wisconsin - none

I think I'm seeing a trend here.

[jemacedo9]

In Pennsylvania:
I-70/76 and US 219 qualifies. The Somerset exit is signed for US 219 but it actually uses a collection of state routes to make the connection.

The PA Turnpike has several:
I-76/US 322
I-76/US 222 involves a connecting road
I-76/US 119 involves a connecting road
I-76/US 220 uses Bus US 220 as the connector

[ozarkman417]

There is US 177 and I-44 in Oklahoma (access is provided via SR 66), and with the amount of Turnpikes in OK, there are probably a few more.

[zzcarp]

Lots of examples on the Ohio Turnpike. From west to east:

I-80/90 - US 127
I-80/90 - US 23
I-80/90 - US 24
*I-80 - US 6 at Fremont, Ohio(I-90 crosses US 6 a second time in downtown Cleveland after I-90 exits the Turnpike) - * As pointed out by ilpt4u and Hot Rod Hootenanny subsequently, US 6 doesn't count as it meets it in other states. I was thinking turnpike only *
I-76 - US 62

I-76 and US 224 at its Turnpike crossing south of Youngstown doesn't count because of their long multiplex west of Akron on the free section.

And, an honorable mention: US 20A is multiplexed with Ohio 15 at its exit from the turnpike, yet is not mentioned in either direction on the mainline. If there's one crossing and it's not signed, do they really have an exit? (end of digression)

[zzcarp]

I don't believe there are any examples in Colorado. That said, US 385 north of Julesburg, Colorado does not directly connect with I-80 in Nebraska. The connection is made using Nebraska Link Route 25A near Chappell, Nebraska.

[Hot Rod Hootenanny]

Lots of examples on the Ohio Turnpike. From west to east:
I-80 - US 6 at Fremont, Ohio (I-90 crosses US 6 a second time in downtown Cleveland after I-90 exits the Turnpike)

Can't use US 6 with either I-80 or I-90. You already mentioned I-90's interchange with US 6 in Cleveland, but I-80 and US 6 meet again in NW Indiana, Iowa, and Nebraska.