Last original Interstate built?

[NE2]

What was the last Interstate from the original Yellow Book plan to be built? (Note: major realignments such as I-95 around Trenton don't count; everything that will be built has been built.)

If you include the 1957 additions, does the answer change?

[3467]

It wasn't because the original route of I-64 is still mostly 2 lanes with 4 lane ROW

[NE2]

It wasn't because the original route of I-64 is still mostly 2 lanes with 4 lane ROW

What was the last one TO BE BUILT? If I ask who the last Repub president was, you don't say some shit like "Romney hasn't won yet".

[NE2]

I'll attempt to narrow it down. The following are incomplete in my 1987 Rand McNally:
*I-10 Phoenix
*I-70 Glenwood Springs (1957 addition)
[I-95 Stuart does not count; the original plan was to use Florida's Turnpike here.]
*I-90 Wallace (I had forgotten that this is generally cited as the last piece - let's see if that's true)
*I-95 Peabody
*I-696 Detroit (original tentative plan was along M-102)
*I-35 Duluth (this piece, north of I-535, may not be original)
*I-35E St. Paul
*I-94 east of St. Paul
*I-494 South St. Paul
*I-93 Franconia Notch
*I-295 Trenton
*I-287 Boonton-Suffern
*I-82 Hermiston (1957 addition)
*I-279, I-579 Pittsburgh
*I-476 Philadelphia
*I-676 Philadelphia
*I-215 Salt Lake City (1957 addition)
*I-70 Richfield (1957 addition)
*I-15 Tremonton
*I-464 Norfolk
*I-295 Richmond (only original north of roughly SR 5)
*I-64 Beckley-Crawley
*I-82 Benton City (1957 addition)
*I-90 Seattle

Next up: compare to 1991.

[NE2]

1991 Rand McNally still shows the following incomplete:
*I-90 Wallace: September 1991
*I-70 Glenwood Springs (1957 addition): October 1992
*I-476 Philadelphia: December 1992
*I-287 Boonton-Suffern: November 1993
*I-295 Trenton: December 1994

So (unless Rand McNally was crappier than usual) I-90 was in fact the last original two-digit. I-70 was the last 1950s two-digit, and I-295 was the last period.

[vtk]

Ohio DOT claims I-670 was the final piece of this state's Interstate system completed (Grandview Ave to OH 315), opening in 2002. That was in the Yellow Book, wasn't it?

[NE2]

Ohio DOT claims I-670 was the final piece of this state's Interstate system completed (Grandview Ave to OH 315), opening in 2002. That was in the Yellow Book, wasn't it?

No, it wasn't.

[edit] It sort of was, but I-70 to the south wasn't.

[SP Cook]

The "Rockefeller Gap" in I-64 between Beckley and Sam Black Church opened in 1988. 

[froggie]

A point of disagreement with your OP:  depending on how you define I-95/PA Tpk, one could argue that I-95 still isn't completed yet.

I-35E in St. Paul was completed in October, 1990.  This was original mileage.

According to Duluth news media, I-35 in Duluth was completed on October 28, 1992.  This includes mileage from 1950s adjustments, so this might beat out I-70 Glenwood Springs.

[NE2]

A point of disagreement with your OP:  depending on how you define I-95/PA Tpk, one could argue that I-95 still isn't completed yet.

All of the original I-95 plan that will be built has been built. The proposed interchange was not part of I-95 until the 1980s, and is enough of a realignment that it's not logically the same corridor.

According to Duluth news media, I-35 in Duluth was completed on October 28, 1992.  This includes mileage from 1950s adjustments, so this might beat out I-70 Glenwood Springs.

Going by legislative route definitions, I-35 (LR 390) originally ended at I-535, confirmed by http://www.dot.state.mn.us/library/interstate-anniversary-1952-Mar-1957.pdf p. 12. LR 395 (1959) extended it to 10th Avenue East and LR 396 (1984) took it to 26th Avenue East. The 1957 additions include something in Duluth, and since I-535 was already LR 390, this is probably LR 395.

But... a 1991 aerial shows I-35 complete to a temporary connection at 10th East and Superior, and the 1989-90 official says "open late 1989" for this segment. Busted.

[TheHighwayMan3561]

I don't believe I-35 ever ended at 535/53. It continued past there and dumped onto Mesaba Avenue (today MN 194) into downtown.

[cl94]

According to Duluth news media, I-35 in Duluth was completed on October 28, 1992.  This includes mileage from 1950s adjustments, so this might beat out I-70 Glenwood Springs.

Per Wikipedia's I-35 page, this northern extension was not in the original plans with the last original construction taking place in Iowa. Don't know how true that is.

I agree that it formerly ended at what is now MN 194.

[vtk]

Ohio DOT claims I-670 was the final piece of this state's Interstate system completed (Grandview Ave to OH 315), opening in 2002. That was in the Yellow Book, wasn't it?

No, it wasn't.

I disagree, but looking at the thing I can see how different interpretations might be possible.  To my eyes, the line on the map clearly goes west from the Spring-Sandusky interchange, not the Spring-Mound Interchange, and the 1960s construction of I-70 further south does not constitute completing that line on the Yellow Book map; on the other hand, the difference between those routes is much less than the discrepancy between YB's depiction of the Outerbelt and what was actually built, and I don't see anyone arguing that they aren't the same freeway.

[cl94]

Ohio DOT claims I-670 was the final piece of this state's Interstate system completed (Grandview Ave to OH 315), opening in 2002. That was in the Yellow Book, wasn't it?

No, it wasn't.

I disagree, but looking at the thing I can see how different interpretations might be possible.  To my eyes, the line on the map clearly goes west from the Spring-Sandusky interchange, not the Spring-Mound Interchange, and the 1960s construction of I-70 further south does not constitute completing that line on the Yellow Book map; on the other hand, the difference between those routes is much less than the discrepancy between YB's depiction of the Outerbelt and what was actually built, and I don't see anyone arguing that they aren't the same freeway.

In the original plans, I-670 would have been I-70 west of either SR 315 or I-71 (depending on what you look at). The southerly routing it currently takes was added later. Per the Yellow Book and earlier plans dating from 1952, I-70 would have run into current SR 315 near US 33, which is the exact route taken by I-670.

[3467]

If you know it just tell us

[NE2]

If you know it just tell us

I did after figuring it out, Nixon.

[froggie]

Going by legislative route definitions, I-35 (LR 390) originally ended at I-535, confirmed by http://www.dot.state.mn.us/library/interstate-anniversary-1952-Mar-1957.pdf p. 12. LR 395 (1959) extended it to 10th Avenue East and LR 396 (1984) took it to 26th Avenue East. The 1957 additions include something in Duluth, and since I-535 was already LR 390, this is probably LR 395.

The legislative route definitions don't reflect that I-35 was planned all the way to 68th Ave E, then later truncated to 26th Ave E.  In fact, the 1984 addition of LR 396 was the Legislature's response to the Duluth City Council voting to terminate I-35 at 10th Ave E.

[texaskdog]

According to Duluth news media, I-35 in Duluth was completed on October 28, 1992.  This includes mileage from 1950s adjustments, so this might beat out I-70 Glenwood Springs.

Per Wikipedia's I-35 page, this northern extension was not in the original plans with the last original construction taking place in Iowa. Don't know how true that is.

I agree that it formerly ended at what is now MN 194.

I know it was talked about going at least past downtown  One of the original proposals though did have it going further. I believe they chose the middle of the 3 and the tunnels were an afterthought, and that they originally were going to get rid of Leif Erickson Park.  At least that's what I heard in the 80s when I lived in Minnesota and went up there twice a year.

yeah..what Froggie said

[WashuOtaku]

Last Interstate built... that's easy, US 39.   

[national highway 1]

Last Interstate built... that's easy, US 39.   

Unless you're being sarcastic, but that isn't an interstate.

[NE2]

Last Interstate built... that's easy, US 39.   

Unless you're being sarcastic, but that isn't an interstate.

It is a U.S. Route, however, to continue the unfunny sarcasm.

[TEG24601]

I-90 in Wallace is often cited as the last traffic signal to be removed, which is true, because I-90 was properly routed onto surface streets.  This does not take into account that much of the Interstate Mileage was not built in such a manner, so there were miles on some others that could count, but the Interstate Number was not applied to them until they were completed.


Unfortunately I-69 doesn't count (not in the 1950 or 1957 plan), because then you could say 1992 for the final segments in Pt. Huron.

[NE2]

Unfortunately I-69 doesn't count (not in the 1950 or 1957 plan), because then you could say 2189 for the final segments in Arkansas.

Fixed for you.

[Bickendan]

When was I-5 north of Lake Shasta to Oregon completed? Late 80s?
I remember seeing maps showing a non-interstate segment.

[NE2]

When was I-5 north of Lake Shasta to Oregon completed? Late 80s?
I remember seeing maps showing a non-interstate segment.

Oh crap, I missed that in both 1987 and 1991 Rand McNallies. 1987 has a fairly long section incomplete, with 1991 only a bit between Lakehead and Castella. Bridge dates are 1991 and it's all done on a 1993 aerial.

Well, shit. I have no idea if I-5 or I-90 was completed first.