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The Random Highway Facts Thread

Started by njroadhorse, June 18, 2009, 06:25:30 PM

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njroadhorse

This is the official thread for any random trivial musings you have about highways.  Post any kind of neat fact you know about a highway in this thread.

I'll start:

Did you know: I-90 is the only interstate to have both its termini with non-Interstates.
NJ Roads FTW!
Quote from: agentsteel53 on September 30, 2009, 04:04:11 PM
I-99... the Glen Quagmire of interstate routes??


mightyace

#1
Quote from: njroadhorse on June 18, 2009, 06:25:30 PM
Did you know: I-90 is the only interstate to have both its termini with non-Interstates.

Before the direct connection to the PA Turnpike (I-76) at Morgantown was made, I-176 had two non-interstate termini.  The Morgantown end stopped at PA 10/23 and the northern end still stops at US 422.

And, until the new interchange is made to I-80 near Bellfonte, I-99 doesn't directly connect to another interstate.  (I know this is a nitpick!)  Though, before the new section was opened north of Bald Eagle, it definitely was in the same category as I-90!

And, what about I-95?  It ends at US 1 south of Miami on the south end and it reaches the Canadian border where it becomes NB 95.  NB 95 may be a freeway, but it's certainly not an interstate.
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I'm out of this F***KING PLACE!

Hellfighter

Quote from: njroadhorse on June 18, 2009, 06:25:30 PM

Did you know: I-90 is the only interstate to have both its termini with non-Interstates.

What about I-75? It's northern terminus is at the International Bridge in Sault St. Marie, and it's southern terminus is at FL-826.

Mergingtraffic

#3
The believe the longest spur route is I-395 in Eastern Connecticut. 54 miles plus.

Although should it be renumbered, it technically turns into I-290 at the Mass Pike, shouldn't it be renumbered I-895 or I-290?  It really is a connector to the Mass Pike, I-90 from I-95.

Also, CT was the first state to complete it's section of I-95 in 1958.
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Alps

Yeah, let's move on from the "both termini at non-Interstates", because there are far too many.  (I-585)  How about: 2Y is the highest-lettered exit in the country... but H is the highest-lettered exit without a number!  2Y is in Kansas City as many know... who knows where the H is?

mightyace

Quote from: doofy103 on June 18, 2009, 09:00:35 PM
The believe the longest spur route is I-395 in Eastern Connecticut. 54 miles plus.

Although should it be renumbered, it technically turns into I-290 at the Mass Pike, shouldn't it be renumbered I-895 or I-290?  It really is a connector to the Mass Pike, I-90 from I-95.

I hate to rain on your parade but I-135 in KS is 95.74 miles long according to the AARoads interstate guide.  And, I don't even know if that is the longest odd prefixed 3di.

And, while it's numbered as a loop route, I-476 in PA essentially functions as a very long spur while it's the Northeast Extension of the PA Turnpike.  Total length of I-476 is 129.61 miles according to http://www.kurumi.com/roads/3di/
My Flickr Photos: http://www.flickr.com/photos/mightyace

I'm out of this F***KING PLACE!

Alex

The longest exit less stretches of Interstate 10 east of West Texas are a 20 mile stretch between U.S. 441 and U.S. 90 through Osceola National Forest in Florida and the 18 mile stretch between Alabama Exit 53 (CR 64) and Florida Exit 5 (U.S. 90 Alternate).

mightyace

The Pennsylvania Turnpike boast one of the longest stretches between exits in the east.  It is 36 miles between the Somerset (Exit 110) and Bedford (Exit 146) exits.

There are a pair of service plaza on this stretch but they are only a few miles east of the Somerset exit.

The most notable feature of this stretch of highway is the Allegheny Tunnel.
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I'm out of this F***KING PLACE!

Ian

-I-476 is indeed the longest auxiliary interstate. Best part is, that road is only about a 1/2 mile away from my house  :biggrin:

-I-878 is the shortest interstate even though its unsigned.

-I-375 in Detroit is the shortest signed interstate.

-Not only is I-97 the shortest two-digit intrastate interstate, but it is also the only two-digit intracounty interstate which means its only in one county, Anne Arundel.

-The only known '61 spec interstate shield in New Hampshire, is an I-89 shield off of exit 2 (NH 13) on I-89.

-Alaska, Arizona and New Mexico are the only states with out auxiliary interstates.

Ian
UMaine graduate, former PennDOT employee, new SoCal resident.
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agentsteel53

there is an I-93 still remaining ... '61 spec.  Dunno where it is, but someone sent me a recent picture of it!
live from sunny San Diego.

http://shields.aaroads.com

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74/171FAN

VA 35 continues NW of US 301 and I-95 to end at SR 605/SR 622 less than a mile NW of US 301 and its even posted with an END sign.
I am now a PennDOT employee.  My opinions/views do not necessarily reflect the opinions/views of PennDOT.

agentsteel53

Quote from: AlpsROADS on June 18, 2009, 09:26:23 PMH is the highest-lettered exit without a number!  2Y is in Kansas City as many know... who knows where the H is?
I will guess Atlantic City, NJ since they are pretty hardcore on the lettered exits.
live from sunny San Diego.

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Terry Shea

Quote from: mightyace on June 18, 2009, 09:47:53 PM
Quote from: doofy103 on June 18, 2009, 09:00:35 PM
The believe the longest spur route is I-395 in Eastern Connecticut. 54 miles plus.

Although should it be renumbered, it technically turns into I-290 at the Mass Pike, shouldn't it be renumbered I-895 or I-290?  It really is a connector to the Mass Pike, I-90 from I-95.

I hate to rain on your parade but I-135 in KS is 95.74 miles long according to the AARoads interstate guide.  And, I don't even know if that is the longest odd prefixed 3di.

And, while it's numbered as a loop route, I-476 in PA essentially functions as a very long spur while it's the Northeast Extension of the PA Turnpike.  Total length of I-476 is 129.61 miles according to http://www.kurumi.com/roads/3di/
Yeah, and I-196 is 80 miles long.  There are several spurs longer than I-395.

Ian

Quote from: agentsteel53 on June 18, 2009, 11:11:08 PM
there is an I-93 still remaining ... '61 spec.  Dunno where it is, but someone sent me a recent picture of it!

Whoa for real???? Someone tell me where it is! I am heading up to New Hampshire today actually.

Ian
UMaine graduate, former PennDOT employee, new SoCal resident.
Youtube l Flickr

agentsteel53

I do not know where it is.  Ask Steve Alpert.  The shield is this one:

www.aaroads.com/shields/show.php?image=NH19610933t100930.jpg

that photo is from 1992.  The photo from 2009 shows it still there, alive and well.
live from sunny San Diego.

http://shields.aaroads.com

jake@aaroads.com

thenetwork

Would it be safe to say that the I-275/Cincinnati Bypass is the only interstate to:

-- Go the shortest distance through a state from border to border(Indiana).
-- Have just a single exit in one state (again, Indiana).


Also, I-271 & I-480 are the only two 3dis to Multiplex with each other.

Mr_Northside

Quote from: thenetwork on June 19, 2009, 09:27:38 AM
-- Have just a single exit in one state (again, Indiana).

If you don't count the terminus trumpet itself, then, currently, I-86 has only one exit in PA.  Once it's extended east of Elmira to Binghamton there will be another one where I-86 dips back into PA. (Though I believe it will still be maintained by NY)

Quote
Also, I-271 & I-480 are the only two 3dis to Multiplex with each other.

While officially correct (because, on paper, the routes have been switched & do not multiplex) it will be interesting to see how long the Parkway West in Pittsburgh has both I-376 signs AND I-279 shields still hanging around.
I don't have opinions anymore. All I know is that no one is better than anyone else, and everyone is the best at everything

mightyace

Quote from: thenetwork on June 19, 2009, 09:27:38 AM
Would it be safe to say that the I-275/Cincinnati Bypass is the only interstate to:

-- Go the shortest distance through a state from border to border(Indiana).

Mileage figures are again courtery of AARoad's http://www.interstate-guide.com

I-275 in Indiana is 3.16 miles.
I-684 in Connecticut is 1.41 miles.  However, there are no exits on I-684 through CT.

Just call me "Mythbuster."  :no:  :poke:  :sombrero:
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I'm out of this F***KING PLACE!

Alex

0.11 miles where the tip of DC goes over the WWB, don't think there is any stretch of Interstate shorter within one jurisdiction.

Terry Shea

Quote from: froggie on June 19, 2009, 10:35:48 AM
QuoteWould it be safe to say that the I-275/Cincinnati Bypass is the only interstate to:

-- Go the shortest distance through a state from border to border(Indiana).

Depends how you would define I-95 in DC...

Or how you define DC since it's not actually a state.

Hellfighter

Parts of I-10 and I-20 in Western Texas and I-15 between I-70 and Salt Lake City have the highest speed limits in the United States at 80 Mph.

Alps

Quote from: agentsteel53 on June 19, 2009, 09:06:07 AM
I do not know where it is.  Ask Steve Alpert.  The shield is this one:

www.aaroads.com/shields/show.php?image=NH19610933t100930.jpg

that photo is from 1992.  The photo from 2009 shows it still there, alive and well.
I dont' want to reveal too much on this forum.  All I'll say is, drive both directions on a certain east-west route near a certain 3-digit Interstate spur.  In the middle of the referenced city, you will find it pointing down a certain other east-west route.

Revive 755

I've made a map indicating the approximate midpoints of some multi-state two digit interstates:

http://maps.google.com/maps/ms?hl=en&ie=UTF8&msa=0&msid=117499567522166489363.00046caea572232c09da1&ll=39.095963,-94.042969&spn=29.269306,60.732422&z=4

Note that this map will include a few inaccuracies from the Federal mileage log.  I-64 is particularly affected by this since the Federal log has the west end around I-270.

thenetwork

Quote from: Mr_Northside on June 19, 2009, 09:44:20 AM
Quote from: thenetwork on June 19, 2009, 09:27:38 AM
-- Have just a single exit in one state (again, Indiana).

I did not know of the I-684 designation.  However, I knew there would be debate on I-86.  Granted, the New York stretch of I-86 does dip into PA for one exit, but I-86 does go into PA a second time (on the western terminus) and adds additional exits.

When I-86 is (ever) complete in NY, it could be considered the only Interstate to enter a single state more than twice, no???

agentsteel53

they've raised it in Utah as well?

last time I was there, I went from 15 to 70, and didn't see anything.  I'd imagine that the area south of 70, down to about St. George, would be eligible for the higher limit too ... pretty abandoned stretch going in both directions from 70.

oh and 70 itself should be eligible for speed limit 80.  There are a few winding mountain sections, but it's a very lightly traveled road.
live from sunny San Diego.

http://shields.aaroads.com

jake@aaroads.com



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