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

[bing101]

http://en.wikipedia.org/wiki/Interstate_110_and_State_Route_110_%28California%29

http://en.wikipedia.org/wiki/Interstate_210_%28California%29

http://en.wikipedia.org/wiki/CA_238
http://en.wikipedia.org/wiki/Interstate_238_%28California%29

en.wikipedia.org/wiki/Interstate_15_in_California

en.wikipedia.org/wiki/I-710



en.wikipedia.org/wiki/Interstate_495_(New_York)

en.wikipedia.org/wiki/New_Jersey_Route_495

These are the routes where an interstate continues as a state route I-495 New York, NJ-495
CA-710 and I-710 in California, CA-210 and I-210, CA-238 and I-238, CA-15 and I-15, I-110 and CA-110 in California.

[oscar]

I guess you're limiting this to state routes with the same number as the Interstates, right?  That would make this exercise more manageable.

How about I-195 -> VA 195 in Richmond?

[NE2]

I-381 VA, I-471 KY, I-540 NC, I-695 MD (officially), I-295 DC (if DC is a state)

I-10 FL looks like it does, but SR 10 is the hidden number for US 90 west of Jax.

Is I-215 NV the only one that continues as a county route?

[1995hoo]

edited–never mind, NE2 beat me to it. The board didn't trigger the "someone else posted" warning, oddly enough.

Unposted I-878 to NY-878 might be another, if you count unposted route numbers.

If you're willing to count provinces, then you have I-95 to New Brunswick Route 95.

[TheStranger]

New York has quite a few of these: 390, 590, 690, 890, 481.  (NY 878 technically)

Would that segment of the San Bernardino Freeway between US 101 and I-5 count?

IL 255

Had it been built, the section of freeway extending west from the 380/280 interchange in San Bruno would have been California state route 380.

[Big John]

!-794 to WI 794 in Milwaukee.

[oscar]

If you're willing to count provinces, then you have I-95 to New Brunswick Route 95.

And I-29 to MB 29 (very short connector in Emerson to the MB 75 highway to Winnipeg).

[PHLBOS]

One could argue that the I-283/PA 283 hand-off is continuous.

[bzakharin]

Is 495 west of the LIE continuous? Wikipedia seems to imply that 34th street connext it to I-495 which in turn implies that it does not have that number where I-495 ends.

[spooky]

New York has quite a few of these: 390, 590, 690, 890, 481.  (NY 878 technically)

and 787.

[roadman65]

I-295 in DC continues as DC 295.  One could argue that MD 295 could be that too, but the BW Parkway is unsigned and not exactly sure if MDSHA counts it as a hidden route 295 or not.

[Molandfreak]

If you're willing to count provinces, then you have I-95 to New Brunswick Route 95.

And I-29 to MB 29 (very short connector in Emerson to the MB 75 highway to Winnipeg).

not anymore. http://en.wikipedia.org/wiki/Manitoba_Highway_29

[NE2]

I-295 in DC continues as DC 295.  One could argue that MD 295 could be that too, but the BW Parkway is unsigned and not exactly sure if MDSHA counts it as a hidden route 295 or not.

MD 295 begins at US 50; you have to use MD 201 to connect from DC 295 to MD 295. (The BW Parkway officially follows US 50 into DC, but MD 295 does not.)

[nexus73]

I-105/SR 126 becomes SR 126 after crossing I-5 and heading east in Eugene-Springfield OR.

Rick

[Brian556]

I-4 Daytona, Fl. Continues as a non-controlled access highway, though. It is signed SR 400, the hidden number of I-4.

[vdeane]

I-295 in DC continues as DC 295.  One could argue that MD 295 could be that too, but the BW Parkway is unsigned and not exactly sure if MDSHA counts it as a hidden route 295 or not.

MD 295 begins at US 50; you have to use MD 201 to connect from DC 295 to MD 295. (The BW Parkway officially follows US 50 into DC, but MD 295 does not.)

So they have a route that otherwise is a surface street enter a freeway and have a number "hand-off" for no apparent reason whatsoever and still call most of the freeway MD 295 even though it doesn't continue anything... and to think there are even more illogical numbering situations around!

[bing101]

I-381 VA, I-471 KY, I-540 NC, I-695 MD (officially), I-295 DC (if DC is a state)

I-10 FL looks like it does, but SR 10 is the hidden number for US 90 west of Jax.

Is I-215 NV the only one that continues as a county route?

Yes I215 in Paradise continues as cc 215 in the Vegas suburbs.

[jp the roadgeek]

I-691 in CT continues as CT 66.

[Charles2]

I-759 becomes AL-759 east of US 411 in Gadsden, AL.

[hbelkins]

I-265 and KY 841 on both ends.

[Pete from Boston]

I-691 in CT continues as CT 66.

Is the thread question looking for examples of continuous roads, continuous numbers, or both?

If 691 qualifies, there is also MA 25 seamlessly starting at the end of I-495.  And depending on how you interpret it, there's MA 128 at the end of I-93.  But I realize that's pushing it.

[NE2]

Is I-215 NV the only one that continues as a county route?

Yes I215 in Paradise continues as cc 215 in the Vegas suburbs.
[/quote]
Thanks for not answering my question.

[oscar]

Unsigned Interstate A-2 is concurrent with the middle part of AK 2.  AK 2 continues as a non-Interstate route north and west of Fairbanks, and continues concurrent with Interstate A-1 east of Tok. 

[Zeffy]

If 691 qualifies, there is also MA 25 seamlessly starting at the end of I-495.  And depending on how you interpret it, there's MA 128 at the end of I-93.  But I realize that's pushing it.

If these qualify, I-195 continues as NJ 29 at the western end, NJ 138 at the eastern end.

I-287 continues as NJ 440 at it's southern end.

[roadman65]

I-295 in DC continues as DC 295.  One could argue that MD 295 could be that too, but the BW Parkway is unsigned and not exactly sure if MDSHA counts it as a hidden route 295 or not.

MD 295 begins at US 50; you have to use MD 201 to connect from DC 295 to MD 295. (The BW Parkway officially follows US 50 into DC, but MD 295 does not.)

So they have a route that otherwise is a surface street enter a freeway and have a number "hand-off" for no apparent reason whatsoever and still call most of the freeway MD 295 even though it doesn't continue anything... and to think there are even more illogical numbering situations around!

The big hand off is PA 283 to I-283 where PA 283 ends at I-283.  That is the strangest, although logical on paper I think.  I would rather see I-283 and PA 283 as one continuous route or even have I-283 continue to Lancaster.  PA has never been one to follow interstate guidelines, hence I-70 in Breezewood and what about I-70 from New Stanton to Washington, PA.  Tell me that is no different standards then PA 283 is.

The one in MD at least is not signed for the most part, so it really does not stick out except to maybe us.