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Old October 18th, 2007, 04:27 AM   #81
mgk920
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Quote:
Originally Posted by wyqtor View Post
This is probably the highest motorway in the world. The first time I saw the height of the Eisenhower tunnel, I actually thought it was a mistake.

I still can't figure out how the I-70 can climb that much... does anyone have some photos?
The figure of 3401m that Chriszwolle posted may be closer to correct, I was just going by what the topo map showed. Colorado is itself a very high altitude state and it is just several sections of loooooooong 6% grades leading up to the tunnel. A bit to the west, I-70 also reaches 3251m at the summit of Vail Pass, just east of Vail, CO (*NO* tunnel).

Denver, CO is about 1600m in altitude.

As for photos, a Google search should yield plenty.

What is the highest point on the Swiss autobahn network?

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Old October 18th, 2007, 06:55 AM   #82
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For the ones I know in Canada:
BC-5 Hope - Merritt -> Coquihalla Summit 1,244m
AB-1 Calgary - Banff -> Scott Lake Hill 1,410m
BC-5 Merritt - Kamloops -> Clapperton Creek Summit 1,445m
BC-97C Merritt - Peachland -> Pennask Summit 1,728m
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Old October 18th, 2007, 07:51 AM   #83
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Quote:
Originally Posted by ardmacha View Post
Some of the highest motorway/expressways are in Mexico, where there are over 3000m.
That's correct, after having a look at Google Earth as well as some topo maps, here is the info:

* MEX190D (Mexico City - Puebla) -> Llano Grande, 3254m
* MEX15D (Mexico City - Toluca) -> Puerto Las Cruces, 3176m (although there is a highway sign that sets the altitude at 3035m)
* MEX95D (Mexico City - Cuernavaca) -> Puerto La Cima, 3054m

Data is approximate, but it's certain that they are above the 3000m mark.
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Old October 18th, 2007, 10:34 AM   #84
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Quote:
Originally Posted by Verso View Post
Chris, why didn't you start with Dutch motorways?
Because it's just sad how low they are

Maybe we win in the lowest motorway! A20 near Rotterdam -6m.
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Old October 18th, 2007, 11:19 AM   #85
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Quote:
Originally Posted by RawLee View Post
We have no high motorways...I suspect the highest would be around 4-500metres...though I have no official data(cant find).
frankly - i'm not sure in that, i think that existing hungarian motorways don't go over 250 m
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Old October 18th, 2007, 11:52 AM   #86
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The A25 in Portugal goes over 1000m I think but i'm not sure...
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Old October 18th, 2007, 11:56 AM   #87
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I70

I doubt it.
Xining to Lasa Motoway has average elevation over 4000M
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Old October 18th, 2007, 02:19 PM   #88
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Is that motorway/autobahn?

Quote:
Originally Posted by Chriszwolle View Post
Because it's just sad how low they are

Maybe we win in the lowest motorway! A20 near Rotterdam -6m.
Haha. But very few motorways can beat that!

P.S.: answer my PM.
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Old October 18th, 2007, 05:21 PM   #89
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Quote:
Originally Posted by mgk920 View Post
The figure of 3401m that Chriszwolle posted may be closer to correct, I was just going by what the topo map showed. Colorado is itself a very high altitude state and it is just several sections of loooooooong 6% grades leading up to the tunnel. A bit to the west, I-70 also reaches 3251m at the summit of Vail Pass, just east of Vail, CO (*NO* tunnel).
Aren't there many problem in winter with the snow? Isn't it very usual for the interstate to be cut because of the snow?



Quote:
Originally Posted by DFM View Post
The A25 in Portugal goes over 1000m I think but i'm not sure...
I'm quite sure it doesn't reach 1000, because it's highest point (near Guarda) has only some around 800/900m.
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Old October 18th, 2007, 05:25 PM   #90
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Quote:
Originally Posted by Nephasto View Post
Aren't there many problem in winter with the snow? Isn't it very usual for the interstate to be cut because of the snow?





I'm quite sure it doesn't reach 1000, because it's highest point (near Guarda) has only some around 800/900m.
Well it's not bad.
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Old October 18th, 2007, 06:01 PM   #91
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Quote:
Originally Posted by MetroMEX View Post
* MEX190D (Mexico City - Puebla) -> Llano Grande, 3254m
* MEX15D (Mexico City - Toluca) -> Puerto Las Cruces, 3176m (although there is a highway sign that sets the altitude at 3035m)
* MEX95D (Mexico City - Cuernavaca) -> Puerto La Cima, 3054m
Wow, are there any pics available?

Unfortunately I have only driven in the flat Yucatan.
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Old October 18th, 2007, 08:22 PM   #92
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Quote:
Originally Posted by Nephasto View Post
Aren't there many problem in winter with the snow? Isn't it very usual for the interstate to be cut because of the snow?
CDOT (Colorado Department of Transportation) is very good at keeping I-70 open in winter.

Mike
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Old October 18th, 2007, 08:26 PM   #93
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Some Interstates in Wyoming/Montana have barriers in case of extreme blizzards, dust storms and high violent winds.
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Old October 18th, 2007, 08:33 PM   #94
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Quote:
Originally Posted by Chriszwolle View Post
Because it's just sad how low they are

Maybe we win in the lowest motorway! A20 near Rotterdam -6m.
Interestingly, in the USA, I-8 bottoms out at about -14m at interchange 107 just west of El Centro, CA. It is in the Salton Sea basin. That is the lowest 'surface' motorway in the USA.

There are underwater tunnels in the USA, especially in the northeast, that bottom out at about -27m.

Mike
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Old October 18th, 2007, 11:51 PM   #95
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I thought this would be about highest elevated freeways above the ground for some reason :S

Anyone one know what they are?
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Old October 18th, 2007, 11:59 PM   #96
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I think the French A75 will win that, at least in Europe...

The roadway on the Viaduc de Millau is 270m above the ground.
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Old October 19th, 2007, 12:01 AM   #97
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Our viaduct on M7 at Kőröshegy "only" does 88m above the valley...
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Old October 19th, 2007, 12:10 AM   #98
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Viaduc du Millau is the highest in the world.

in Croatia it is 125 m high viaduct Limska Draga at A9 (btw itßs 552 m long)



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Old October 19th, 2007, 12:26 AM   #99
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Poland here

Well... assuming we have any "serious" motorways/expressways, the highest now-ready expressway at about 450m is the S69 (half-profile, near Wegierska Gorka in the Beskidy mountains, close to Slovakian border). It's under construction now and will go up a bit, but I think it won't exceed 700m (near Milowka / Laliki and on the border crossing in Zwardon/Skalite). Also the S7 Krakow-Rabka/Nowy Targ won't be higher than that.
The highest full-profile expressway is the S1 between Bielsko-Biala and Cieszyn (near Czech border), having in some places around 370m...
The highest motorway: some 350-360m on the A4, crossing the St. Ann's Mountain near Strzelce Opolskie and also for some distance halfway from Katowice to Krakow.

Summing up ? FLAAAT.... ;-)
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Old October 19th, 2007, 01:37 PM   #100
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In Germany there are some impressive "Talbrücken" as well, e.g. on the A61.
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