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Old October 26th, 2014, 01:41 AM   #7161
Deadeye Reloaded
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Quote:
Originally Posted by Deadeye Reloaded View Post
Official opening date(s) of the Jagdbergtunnel on the A4 near Jena!

Westbound tube: 30.10.2014
Eastbound tube: 18.11.2014

SOURCE

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Originally Posted by ChrisZwolle View Post
3072 m is the average of both tubes (3070 m and 3074 m)
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Originally Posted by Penn's Woods View Post
I gather that's length, not altitude?
Quote:
Originally Posted by Wilhem275 View Post
Otherwise, it would be quite a record

http://en.wikipedia.org/wiki/List_of...oads_in_Europe

Germany´s highest mountain: Zugspitze (2962 m)
So building a tunnel above this mark in Germany is not that easy.
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Last edited by Deadeye Reloaded; October 26th, 2014 at 02:10 AM.
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Old October 27th, 2014, 06:47 AM   #7162
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We would have to do another Anschluss for that.
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Old October 27th, 2014, 10:15 PM   #7163
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Quote:
Originally Posted by Penn's Woods View Post
I gather that's length, not altitude?
There aren't many roads (in length) above ~2000 m/6000 ft in Europe. The Alps are narrower than the Rocky Mountains but they rise more quickly (up to the point that the highest peak in the contiguous United States is lower than the highest in the Alps). The effect is that the Alps have generally been bypassed with long tunnels from the beginning (in the XIX century for railways), while in North America there aren't many of them (there aren't road tunnels through mountains longer than 3 km/2 mi in North America, except a combined rail/road tunnel in Alaska, while long rail tunnels are also rare with just 6 over 5 km in length).

Central Europe is also slightly to the north than the contiguous United States, for instance, you won't find so many trees at a similar altitude in Europe (Eisenhower tunnel and Jungfraujoch respectively, around 3400 m/11200 ft asl).
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Old October 27th, 2014, 10:44 PM   #7164
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B19 Bad Mergentheim bypass

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Originally Posted by ChrisZwolle View Post
MichiH, do you know when B19 around Bad Mergentheim will open?

A news article said 'October'.

http://www.fnweb.de/region/main-taub...rtig-1.1767603
Happened today, see press release (2). 2.7km, 12.5 million €. Groundbreaking: 7th May 2013.
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Old October 27th, 2014, 10:53 PM   #7165
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Anybody knows when this (below on picture) part of A8 between AS Wellingen - AS Schwellingen is going to be upgraded to full pofile? On polish forum I`ve read that tender had been announced some time ago and completion is scheduled for 2017 year, is it true?
http://www.saarbruecker-zeitung.de/s...446565,5488447

The first phase is the new Kohlenbruch viaduct. The works will begin in April 2015. Completion: October 2016. The new carriageway will be built from July 2015 to June 2016. The existing carriageway will be renewed from July 2016 to November 2017.

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The Federal Minster of Transport, Mr. Dobrindt (CSU party) - who wants to indrotuce the car toll for foreigners -, made a list in July and said that the projects are funded. In total 27 projects were recently discussed in the budget committee of the Bundestag. Only 6 projects have been officially added to the construction plan ("Straßenbauplan"). 5 projects are currently checked by the Federal Ministry of Finance, 16 projects are just 'in the pool'.

The A3 widening sectiion near Wertheim is u/c now. The groundbreaking ceremony of the B300 was today. The info about the schedule of the A43 project is very detailed, the clearance works began one week ago. I've no idea if the A8 project is one of the remain three projects (6 minus 3).

The construction time of the A8 should be 3 years.
The 4th project is the B31 Friedrichshafen bypass (groundbreaking ceremony on 24th November 2014; 7.2km; 4-laned; 119.5 million €; completion: 2020; source), the 5th project should be the A8 Wellingen.
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Old October 28th, 2014, 12:35 AM   #7166
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Quote:
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The first phase is the new Kohlenbruch viaduct. The works will begin in April 2015. Completion: October 2016. The new carriageway will be built from July 2015 to June 2016. The existing carriageway will be renewed from July 2016 to November 2017.
That's very fast! Surprised me!
Btw, thanks for info.
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Old October 29th, 2014, 08:47 PM   #7167
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A7 in Germany:
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Old October 29th, 2014, 09:10 PM   #7168
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A4 Jagdbergtunnel

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Originally Posted by Deadeye Reloaded View Post
Official opening date(s) of the Jagdbergtunnel on the A4 near Jena!

Westbound tube: 30.10.2014
Eastbound tube: 18.11.2014
The westbound tube was opened one day earlier: http://www.thueringen.de/th9/tmblv/p...992/index.aspx.
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Old October 29th, 2014, 09:13 PM   #7169
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Quote:
Originally Posted by MichiH View Post
The westbound tube was opened one day earlier: http://www.thueringen.de/th9/tmblv/p...992/index.aspx.
What happens to the old A4 alignment?

EDIT: I read the document. If I understand correctly it will be dismantled?
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Old October 29th, 2014, 09:18 PM   #7170
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Originally Posted by g.spinoza View Post
What happens to the old A4 alignment?

EDIT: I read the document. If I understand correctly it will be dismantled?
Correct . Total costs: 386 million €. Construction time: 6 years according to the press release but the works began in May 2007...
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Old October 29th, 2014, 09:24 PM   #7171
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If not familiar with that stretch of motorway, I never drove there. Was it really so difficult to enlarge on site?
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Old October 29th, 2014, 09:30 PM   #7172
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I never drove there but the press release says "erheblich günstigere Steigungsverhältnisse als die alte Leutrataltrasse" = "much better inclination situation than the old Leutra valley route". IIRC it was not possible to widen the A4 on the old route b/c there is a nature protection area!? Well, the old road was 2x2 w/o hard shoulders, the new road has 2x3 lanes with hard shoulders that means doubling the width of the aisle.
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Old October 29th, 2014, 09:31 PM   #7173
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I guess that, if they ended up building a tunnel, there was a nasty slope there...
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Old October 29th, 2014, 09:31 PM   #7174
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It runs through a protected area and is rather steep. Widening it 'in-situ' would be difficult.


img 264 by Chriszwolle, on Flickr
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Old October 29th, 2014, 09:47 PM   #7175
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Quote:
Originally Posted by g.spinoza View Post
If not familiar with that stretch of motorway, I never drove there. Was it really so difficult to enlarge on site?
That section is very steep, trucks usually can drive only 50-60 km/h uphill, and has very sharp curves. A typical Rheichsautobahn. Nowadays such a road could never be categorized as a motorway. Many 'gelbe Autobahnen' have significantly better alignment.
Knowing the terrain, I suppose, widening it would have been more difficult and more expensive than building a new alignment with tunnels. Additionally, even with a 2×3 + shoulder would it be uncomfortable steep and would have unusual sharp curves, a speed limit of 100 km/h should be applied (possibly 100/100/80 for the three lanes).
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Old October 29th, 2014, 09:51 PM   #7176
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Well, the endpoints are the same, so it has to overcome the same altitude gap. I guess the new alignment has more or less the same steepness of the old motorway?
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Old October 29th, 2014, 09:54 PM   #7177
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The tunnel cuts through the grade. A similar tunnel under construction is the Götschka Tunnel of S10 in Austria, just north of Linz.
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Old October 29th, 2014, 10:02 PM   #7178
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Quote:
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Well, the endpoints are the same, so it has to overcome the same altitude gap. I guess the new alignment has more or less the same steepness of the old motorway?
No, altitude gap is not the problem. The endpoints are (relatively) low, but the old road does not cut through the mountain but leads up, and then down, just like many mountain roads. The new one cuts it through by tunnels.
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Old October 29th, 2014, 10:08 PM   #7179
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According to Google Earth altitude, the old alignment goes up from 180 m to 400 m in 8 kilometers. The tunnel is also located on an incline, from approximately 200 m to 320 m. The highest point on the new alignment is around 360 m.
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Old October 29th, 2014, 10:29 PM   #7180
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