3dis on former routing of parent 2di

[mightyace]

This topic is trying to identify the three-digit interstates that run on a former routing of their 2di parent.

Here are some examples that I can think of to get this started:

1) I-376 in Pittsburgh, PA runs on a former routing of I-76

2) I-480 near Cleveland, OH was once signed as I-80

3) I-76 and I-676 have swapped routes in Philadelphia, PA.

Plus, I have a future one.

When the I-95/PA turnpike interchange is complete and I-95 is routed onto the PA and NJ turnpikes.  The current I-95 from there to Trenton will become I-195.  (at least for now  )

What other ones are there?

[mightyace]

Well you have the opposite in your own backyard:  I-65 running along what was originally I-265.

I didn't mention that because that is the reverse of what I mentioned.  That's a parent 2di running on a former 3di routing.

But, if everyone wants to discuss those as well.  I'm game.

[74/171FAN]

I-395 on I-95's old route through Washington, DC
I-270 on I-70S from I-70 to I-495
I-275 on I-4's and I-75's old route in Tampa/St. Petersburg, FL

[PAHighways]

I-279 on I-79's former route on the Parkway West in Pittsburgh

When it is finally extended, I-376 on I-76's former route on the same expressway.

[Terry Shea]

I-96 and I-196 flip flopped routes around 1963.  Here are the details:
http://www.michiganhighways.org/listings/MichHwys90-99.html
http://www.michiganhighways.org/listings/MichHwys180-199.html

[mightyace]

IIRC

I-290 in Chicagoland once was signed as I-90.

[Sykotyk]

I-95 now rides on old I-495 in Maine. I-295 runs on old I-95.

Sykotyk

[brad2971]

I-80 in Sacramento runs on the old I-880 route. Biz-80 is now the old I-80 routing in CA's state capital.

[DrZoidberg]

Wasn't there a plan in place at one time to route I-94 in Milwaukee along I-894, and then extend I-794 west along the current routing of I-94?

[akotchi]

I-275 in Knoxville was I-75 before I-75 was rerouted around the city on I-640.

[Greybear]

In Memphis, when the route through Overton Park was defeated, TnDOT routed I-40 over the route of I-240 on the northern side of the city.

[Alps]

I-495 DE was for a couple of years I-95 due to reconstruction through Wilmington - current/original I-95 was briefly I-895.