Former Auxiliary Interstates?

[adventurernumber1]

Anyone know of any former auxiliary interstates. I know of I-124, a former spur of I-24 in downtown Chattanooga, TN. As a kid I always knew about I-124 because of older maps around the house, but in my lifetime or at least the past several years US 27 (a freeway in downtown Chattanooga which WAS I-124) has not really been designated as I-124. Also, here's the Wikipedia page for it http://en.m.wikipedia.org/wiki/Interstate_124

Anybody else know of more former auxiliary interstates?

[Roadrunner75]

Former I-378 in Bethlehem, PA....now PA 378 as it no longer connects to its parent.  Also, former I-495 in New Jersey leading to the Lincoln Tunnel, now just NJ 495 after the cancellation of the extension of I-495 across Manhattan (just imagine what that would have looked like if it was built..)

[cl94]

I-179 in Erie. I-79 originally ended at I-90.

[bassoon1986]

I-181 in northeast Tennessee before I-26 took it's place.

[Arkansastravelguy]

Anyone know of any former auxiliary interstates. I know of I-124, a former spur of I-24 in downtown Chattanooga, TN. As a kid I always knew about I-124 because of older maps around the house, but in my lifetime or at least the past several years US 27 (a freeway in downtown Chattanooga which WAS I-124) has not really been designated as I-124. Also, here's the Wikipedia page for it http://en.m.wikipedia.org/wiki/Interstate_124

Anybody else know of more former auxiliary interstates?

Isn't 27 still "secret" 124? I remember seeing an old pic of a 124 shield a long time ago.

Does 478 count? (Battery Tunnel in NYC)

[DTComposer]

California:
I-480 - the Embarcadero Freeway that was damaged in the 1989 earthquake, then demolished. It lost it's Interstate status pretty early on (1966?)
I-880 - the northern bypass of Sacramento, which I-80 was re-routed onto in the early 1980s.
I-105 - the Santa Ana Freeway between the downtown slot and the East L.A. Interchange. This was given back to US-101 in the 1960s.
I-110 - the San Bernardino Freeway between the downtown slot and I-5. This was given to I-10 in the 1960s.

[Arkansastravelguy]

I-164 in Evansville, IN

[CNGL-Leudimin]

Anyone know of any former auxiliary interstates. I know of I-124, a former spur of I-24 in downtown Chattanooga, TN. As a kid I always knew about I-124 because of older maps around the house, but in my lifetime or at least the past several years US 27 (a freeway in downtown Chattanooga which WAS I-124) has not really been designated as I-124. Also, here's the Wikipedia page for it http://en.wikipedia.org/wiki/Interstate_124

Anybody else know of more former auxiliary interstates?

Fixed for those who are not on mobile devices. Anyway, it says I-124 still exists.

I-265 in Nashville, now I-65. And I-180N .

[DandyDan]

I-580 was designated to what is now the North Freeway in Omaha.  That road is now US 75, although, like I said, they generally call it the North Freeway.

I know I-335 was supposed to be built in Minneapolis, and somewhere at my parent's, they have a Minnesota map with I-335 on it under construction, but, of course, it never got built.

[froggie]

Does 478 count? (Battery Tunnel in NYC)

Doesn't 478 still exist? (even if unsigned)

I-164 in Evansville, IN

Still existed as of April.

And I-180N

The AASHTO route committee notes from another thread suggest that the "N" suffix never actually existed.  But I-180 Boise certainly did and would count.

I know I-335 was supposed to be built in Minneapolis, and somewhere at my parent's, they have a Minnesota map with I-335 on it under construction, but, of course, it never got built.

Got as far as right-of-way acquisition and construction of the ramps at I-35W, but that was it.


A few more not mentioned yet:

- I-180 Pennsylvania.  Became I-176.
- I-210 Mobile, AL.  Became I-165.
- I-244 St. Louis, MO.  Became I-270 (west of St. Louis from I-70 to I-55).
- I-255 Memphis, TN.  Became the north-south leg of I-240.
- I-281 Syracuse, NY.  Became I-481.
- I-326 Columbia, SC.  Was apparently a temporary (but never signed) designation for what became I-77 coming off I-26.
- I-876 Pittsburgh, PA.  Became I-579.

[Doctor Whom]

Interstate 170 in Maryland, now part of US 40.

[cl94]

The original I-487 (now the northern leg of I-287)

[Mapmikey]

A few more

I-364 - early designation for I-464 in Virginia
I-266 - Three Sisters Bridge, cancelled
I-595 - US 1 south of I-395 in Arlington VA was on the books as an approved corridor from 1970 through at least 1982.  Was on some maps.


I-326 did appear on a few SC official maps.  When the first part was finally built from I-26 to SC 48 in the late '80s it was signed as SC 478 TEMP.

Mapmikey

[TheStranger]

California:
I-480 - the Embarcadero Freeway that was damaged in the 1989 earthquake, then demolished. It lost it's Interstate status pretty early on (1966?)
I-880 - the northern bypass of Sacramento, which I-80 was re-routed onto in the early 1980s.
I-105 - the Santa Ana Freeway between the downtown slot and the East L.A. Interchange. This was given back to US-101 in the 1960s.
I-110 - the San Bernardino Freeway between the downtown slot and I-5. This was given to I-10 in the 1960s.

With regards to 480/105/110 - all three of them, plus the section of I-80 west of the Bay Bridge (including the controversially proposed Western Freeway and today's existing 101/Central Freeway and San Francisco Skyway routes) were taken off the books in 1968 as part of transferring interstate milage to the Century Freeway (today's 105) project - an interesting bit of paper-shuffling to get enough available federal funding for a new-build road.  (IIRC, 380 was also aided by these designational maneuvers)

Reading into that information a bit: 105, 110, and the part of signed Interstate 80 that still exists in SF (along with the portion that has only been US 101/Central Freeway since) all were built before the Interstate system began, thus they were already-constructed freeways that counted against allotted milage needed for new roads. 

480 had always existed as an Interstate - and in fact may have been the first signed Interstate in San Francisco - but with its milage northwest of Broadway a non-starter politically in SF, along with 80 west of Fell, I surmise that at that point CalTrans wanted to transfer such milage unusuable in that area to a region (Los Angeles) with viable projects.

[The High Plains Traveler]

California:

I-110 - the San Bernardino Freeway between the downtown slot and I-5. This was given to I-10 in the 1960s.

That little piece of the San Bernardino Freeway is part of Route 10 as legislatively defined and has Route 10 postmiles. It is, however, not part of I-10, which runs concurrent with I-5 south to the Santa Monica Freeway. It would therefore be best described as unsigned CA-10. It's signed on either end as access to I-10 or U.S. 101, so to the motorist it's kind of a long ramp.

[Kacie Jane]

- I-180 Pennsylvania.  Became I-176.
- I-210 Mobile, AL.  Became I-165.
- I-244 St. Louis, MO.  Became I-270 (west of St. Louis from I-70 to I-55).
- I-255 Memphis, TN.  Became the north-south leg of I-240.
- I-281 Syracuse, NY.  Became I-481.
- I-876 Pittsburgh, PA.  Became I-579.

I freely admit this is me being pedantic, but can a highway really be considered a former auxiliary interstate if it's a current auxiliary interstate?

[Brandon]

- I-180 Pennsylvania.  Became I-176.
- I-210 Mobile, AL.  Became I-165.
- I-244 St. Louis, MO.  Became I-270 (west of St. Louis from I-70 to I-55).
- I-255 Memphis, TN.  Became the north-south leg of I-240.
- I-281 Syracuse, NY.  Became I-481.
- I-876 Pittsburgh, PA.  Became I-579.

I freely admit this is me being pedantic, but can a highway really be considered a former auxiliary interstate if it's a current auxiliary interstate?

I'd say it has a former auxiliary interstate number traded in for a new auxiliary interstate number.  Thus, yes, it can be both a former auxiliary interstate and a current auxiliary interstate.

[Rover_0]

Let's not forget an early entry 3di replaced by a later 3di: I-415 as Salt Lake City's East-side belt route, replaced by I-215.

[TheStranger]

Some short, not necessarily obvious California examples:

- With the construction of the 210 extension east of Glendora, the portion of the Orange Freeway originally built as I-210 was transferred over to an extended Route 57.

- The segment of the Route 1/Junipero Serra Freeway from I-280/John Daly Boulevard in Daly City north to Font Boulevard in San Francisco was part of the 1955-1968 proposed 280 route to the Presidio that was not completed.

- Covered in a previous thread: Route 17 between the current 880/280 interchange and US 101 was the original southern portion of 280. with 17 from 101 to today's 262 in Fremont (and 262 itself) as I-680.  When 280 and 680 were switched over to what was once a proposed Route 17 alignment into downtown San Jose, that section of freeway (which had been signed as Interstate and possibly built with Interstate funds) became solely a state highway from 1965-1984 (when it was added to today's 880).

- 780 in Vallejo and Benicia is the former (1956-1976) north segment of 680.

[sdmichael]

California:
I-105 - the Santa Ana Freeway between the downtown slot and the East L.A. Interchange. This was given back to US-101 in the 1960s.
I-110 - the San Bernardino Freeway between the downtown slot and I-5. This was given to I-10 in the 1960s.

I-110 and I-105 both began at the San Bernardino Split. There may still be a Route 110 marker, though damaged, under the I-5 overpass. Route 105 becomes more evident in the postmiles for Route 101, as they have an extension south of the San Bernardino Split to I-5.

[roadman]

Technically, the section of I-93 between Exit 29 (MA 28/MA 38/Mystic Ave) in Somerville and the Zakim Bridge in Boston (formerly the Charles River Crossing) is a former auxiliary Interstate.  This is because this section of highway was originally constructed to be part of the Interstate 695 Inner Belt.

The original southbound BGS panels approaching the Charles River Crossing that indicated the left hand exit ramp to the Tobin Bridge (long since removed once the ramp was demolished in 1988 as part of the "Central Artery North Area" phase of Big Dig construction) originally read "JCT I-95 (shield) Boston Revere."  However, unlike the original Central Artery through Downtown Boston - which actually had I-95 shields for a brief period, there is no evidence that I-695 route assemblies were ever provided on what is now the I-93 upper and lower decks.

[vdeane]

Does 478 count? (Battery Tunnel in NYC)

Doesn't 478 still exist? (even if unsigned)

Yep.  I-878 does too, even if NYSDOT doesn't acknowledge it.

I-164 in Evansville, IN

Still existed as of April.

Didn't AASHTO make it part of I-69?

[Arkansastravelguy]

Does 478 count? (Battery Tunnel in NYC)

Doesn't 478 still exist? (even if unsigned)

Yep.  I-878 does too, even if NYSDOT doesn't acknowledge it.

I-164 in Evansville, IN

Still existed as of April.

Didn't AASHTO make it part of I-69?

I was unsure about 478- although I don't understand why it's unsigned when is used to be fully signed- but 164 has changed to 69.

[cl94]

Does 478 count? (Battery Tunnel in NYC)

Doesn't 478 still exist? (even if unsigned)

Yep.  I-878 does too, even if NYSDOT doesn't acknowledge it.

I-164 in Evansville, IN

Still existed as of April.

Didn't AASHTO make it part of I-69?

I was unsure about 478- although I don't understand why it's unsigned when is used to be fully signed- but 164 has changed to 69.

Must have been a loooong time ago or for a very short time, because I can't find a single picture to confirm I-478. It's not like there's any reason to sign it. Everybody knows it as the Battery Tunnel (not its new name).

[hbelkins]

Didn't AASHTO make it part of I-69?

Yes, but it's not signed yet.