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Author Topic: Tennessee  (Read 125243 times)

ATLRedSoxFan

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Re: Tennessee
« Reply #400 on: December 18, 2017, 12:25:01 PM »

Wasn't there supposed to be an I-475 bypass of Knoxville on the books, or has that been axed?
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codyg1985

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Re: Tennessee
« Reply #401 on: December 18, 2017, 01:18:35 PM »

Wasn't there supposed to be an I-475 bypass of Knoxville on the books, or has that been axed?

That has been axed.
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triplemultiplex

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Re: Tennessee
« Reply #402 on: December 18, 2017, 02:38:55 PM »

I thought I remember the dead Knoxville bypass as a realignment of I-75.  It would have been a cut-off between the western 40/75 split and the existing I-75 north of K-ville.  The old route not currently duplexed with another interstate would be an extension of I-275.

Been so long though, I could be conflating someone's fictional musings with the actual proposal.

Either way, it would be highly unfeasible to do something like that today; too much sprawl in the way.
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froggie

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Re: Tennessee
« Reply #403 on: December 18, 2017, 04:14:11 PM »

It got as far as a Draft EIS, which refers to 475 as the proposed route number.  Presumably, if built, it would have been added as an Interstate.

It's not just "sprawl", though, or the environmental impacts, that killed it.  It had a very expensive price tag, and Tennessee is still a pay-as-you-go state (they do not allow bonds or tolls), so cost was a large part of why it was dropped.
« Last Edit: December 18, 2017, 04:17:02 PM by froggie »
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Great Lakes Roads

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Re: Tennessee
« Reply #404 on: December 21, 2017, 12:41:29 PM »

Well, TDOT is doing a project on Interstate 240 on the east side of Memphis that will use Accelerated Bridge Construction... Doubled as "MemFix4" where they are going to replace or repair 4 bridges that go underneath Park Avenue, Norfolk Southern RR, and Popular Avenue...

Can't wait!!  :clap: :clap: :clap:

YouTube Video:
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Brooks

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Tennessee
« Reply #405 on: December 21, 2017, 08:48:49 PM »

I am so ready for this! Iíve been seeing the letting info for this on TDOTís website for some time now, but this is the first thing Iíve seen about it actually getting under way. I travel through the Poplar corridor every day so I will be glad to see this completed.
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Jdsizzleslice

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Re: Tennessee
« Reply #406 on: December 22, 2017, 03:47:51 PM »

Ok, so I have a bit of a dumb question. On I-40 near Knoxville, it merges with I-75; however, the conjoined interstates are just called I-40. Is this because their mile markers do not start at the same mile? I am a bit curious, because I-20 and I-59 conjoin in Alabama, but while they are conjoined, the interstate is referred to as I-20-59. Why is the interstate in Knoxville just called I-40 instead of I-40-75?

Asking for a friend. :)
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adventurernumber1

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Re: Tennessee
« Reply #407 on: December 22, 2017, 09:33:18 PM »

This is one reason why I have proposed (I think I am the first one to do so, IIRC) an Interstate 875 eastern bypass of Chattanooga, to facilitate travel for through I-75 travelers, and to ease traffic problems on some of the highways in the city (mainly I-75).

I want to say that there is a long range plan for such a bypass to the east. Now if there was a push for a southern bypass (which would probably involve a very expensive tunnel under Lookout Mountain).

That is very fascinating; I don't know how I did not know that. An eastern bypass of Chattanooga (I-875) is what would be the most plausible. I don't know that a northern bypass is necessary at all, and while a southern bypass would be quite useful if possible (with the large amounts of traffic that Interstate 24 carries), it is not plausible at all due to the huge geographical barrier of Lookout Mountain (which is a wide plateau, not just some thin ridge!). Hopefully an I-875 is being heavily considered, and I am obviously a huge proponent of it!!  :D


I thought I remember the dead Knoxville bypass as a realignment of I-75.  It would have been a cut-off between the western 40/75 split and the existing I-75 north of K-ville.  The old route not currently duplexed with another interstate would be an extension of I-275.

Been so long though, I could be conflating someone's fictional musings with the actual proposal.

Either way, it would be highly unfeasible to do something like that today; too much sprawl in the way.

If only it was more plausible, that sounds like an incredibly interesting and useful idea!  :nod:


Well, TDOT is doing a project on Interstate 240 on the east side of Memphis that will use Accelerated Bridge Construction... Doubled as "MemFix4" where they are going to replace or repair 4 bridges that go underneath Park Avenue, Norfolk Southern RR, and Popular Avenue...

Can't wait!!  :clap: :clap: :clap:

YouTube Video:

While I am not that awfully close to Memphis, and I do not think I will be able to visit or pass through the area anytime soon, I am still incredibly excited for this!  :thumbsup:

That railroad bridge especially looks quite old and in need of repair. It is very good that they are doing this project, and it is an intriguing one for sure.  :nod:

milbfan

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Re: Tennessee
« Reply #408 on: January 12, 2018, 10:26:13 PM »

Ok, so I have a bit of a dumb question. On I-40 near Knoxville, it merges with I-75; however, the conjoined interstates are just called I-40. Is this because their mile markers do not start at the same mile? I am a bit curious, because I-20 and I-59 conjoin in Alabama, but while they are conjoined, the interstate is referred to as I-20-59. Why is the interstate in Knoxville just called I-40 instead of I-40-75?

Asking for a friend. :)

Knoxville folks are weird.  j/k

I guess it depends on who you ask.  I-40 does go straight through downtown Knoxville, whereas I-75 gets dumped onto 40, then onto 640 (it's almost an afterthought then, too).  Could be the mileage aspect in that the combined interstates continue with I-40's mileage.

I tended to think of I-20/59 as just I-20.  But my reasoning for that was I was traveling to Dallas on 20, past Meridian.
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OracleUsr

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Re: Tennessee
« Reply #409 on: January 13, 2018, 12:18:02 AM »

Isn't I-275 the original I-75 alignment?
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adventurernumber1

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Re: Tennessee
« Reply #410 on: January 13, 2018, 12:49:55 AM »

Isn't I-275 the original I-75 alignment?

I believe that that is in fact true. It seems to me that when the Interstate System first came about, it was just I-75 and I-40 in Knoxville, and they both went through downtown. Soon after Interstate 640 was built later on (as a Knoxville bypass), I-75 was rerouted onto a concurrency with I-640 - when that happened, I believe it is what used to be I-75 that was now designated as I-275. It is very interesting road history indeed.  :nod:

hbelkins

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Re: Tennessee
« Reply #411 on: January 13, 2018, 02:29:50 PM »

Isn't I-275 the original I-75 alignment?

Yes, and I'm old enough to remember.

I've also seen more than a few traffic jams on southbound I-75 because it narrows to a single lane at the ramp to I-640 west. Sometimes it's faster to stay on I-275 to hit I-40 east.
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Mapmikey

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Re: Tennessee
« Reply #412 on: January 13, 2018, 03:30:59 PM »

Ok, so I have a bit of a dumb question. On I-40 near Knoxville, it merges with I-75; however, the conjoined interstates are just called I-40. Is this because their mile markers do not start at the same mile? I am a bit curious, because I-20 and I-59 conjoin in Alabama, but while they are conjoined, the interstate is referred to as I-20-59. Why is the interstate in Knoxville just called I-40 instead of I-40-75?

Asking for a friend. :)

Almost certainly due to the length of the overlay. 40-75 is short while 20-59 is quiet lengthy.  In the same way 77-81 and 64-81 are usually referred to as 81. Iím guessing 80-90 is probably referred to as 80-90.
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Re: Tennessee
« Reply #413 on: January 13, 2018, 04:46:20 PM »

Iím guessing 80-90 is probably referred to as 80-90.

No, 80-90 is referred to as the Indiana Toll Road and the Ohio Turnpike.
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Avalanchez71

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Re: Tennessee
« Reply #414 on: January 18, 2018, 02:15:09 PM »

The I-40/I-65 overlap in Nashville is simply referred to as I-40.  I-65/I-24 overlap is referred to as I-65.  The I-24/I-40 overlap as is just know as I-40.
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wriddle082

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Re: Tennessee
« Reply #415 on: January 18, 2018, 04:32:53 PM »

The I-40/I-65 overlap in Nashville is simply referred to as I-40.  I-65/I-24 overlap is referred to as I-65.  The I-24/I-40 overlap as is just know as I-40.

Since I-24 northwest of Nashville didnít fully open up till the late 70ís, I-24 had a de facto beginning at I-40 east of downtown.  Therefore I-24 was the last interstate to be multiplexed with the others through the city, and everybody was used to referring to them as simply 40 or 65, so those stuck.  Plus none of the three multiplexes is any longer than about 3.5 miles.
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adventurernumber1

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Re: Tennessee
« Reply #416 on: January 18, 2018, 08:48:53 PM »

The I-40/I-65 overlap in Nashville is simply referred to as I-40.  I-65/I-24 overlap is referred to as I-65.  The I-24/I-40 overlap as is just know as I-40.

Since I-24 northwest of Nashville didnít fully open up till the late 70ís, I-24 had a de facto beginning at I-40 east of downtown.  Therefore I-24 was the last interstate to be multiplexed with the others through the city, and everybody was used to referring to them as simply 40 or 65, so those stuck.  Plus none of the three multiplexes is any longer than about 3.5 miles.

Also, Interstate 40 is probably the most significant and important highway that runs through Nashville, so that may be a reason that most of those concurrencies are just referred to as "I-40" (with two being known as I-40, one being known as I-65, and no multiplexes known as I-24).

 


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