How many places are there where an Interstate continues as a state route

[tidecat]

I-265 and IN-265 in Indiana, but probably only until late 2015 or early 2016 when it is joined to I-265 in KY

[Duke87]

NY 690
NY 787
NY 890
PA 283

Technically no on all of these. I-690 and I-890 end at I-90, which are different points from where they meet NY 690 and NY 890. Likewise, the north end of I-787 turns and crosses the Hudson River, so NY 787 ends at I-787, but I-787 does not end at NY 787.

I-283 ends at I-76, not at PA 283. And PA 283 ends at the traffic light at the west end of the freeway, not at I-283. So that one's a double no!

[froggie]

Technically no on all of these. I-690 and I-890 end at I-90, which are different points from where they meet NY 690 and NY 890.

True on I-890, but according to NYSDOT GIS shapefiles, I-690 does not extend onto the ramps to/from Exit 39.  So in this case, I-690/NY 690 would be a "yes".

[Duke87]

True on I-890, but according to NYSDOT GIS shapefiles, I-690 does not extend onto the ramps to/from Exit 39.  So in this case, I-690/NY 690 would be a "yes".

Tell CHM that. They have I-690 on those ramps.

[froggie]

I'm a CHM contributor...there are other factors at play with the CHM lists than what's strictly official or not.

[myosh_tino]

Given all of the California examples, I'm surprised no one has mentioned I-880 turning into CA-17 south of I-280 in San Jose.

[DevalDragon]

Illinois 394 in Northeastern Illinois. I 394 would be an appropriate spur name if it ever became an interstate.

[Bickendan]

The US route ones are fun, especially where the handoff from the US route to state or provincial route doesn't exist anymore thanks to a truncation (US 75 and MB 75; US 61 and MN 61, and the clincher, US 99 and BC 99).

[Brandon]

Illinois 394 in Northeastern Illinois. I 394 would be an appropriate spur name if it ever became an interstate.

But it really doesn't continue as a state route.  The Calumet Expressway does, but I-94 makes a turn there.

[Arkansastravelguy]

Does I-74 to US 74 count in North Carolina? That's gotta be one of a kind


iPhone

[amroad17]

That would be just like I-41/US 41 in Illinois and Wisconsin.