Berlin A100 Stadtautobahn to be further extended

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Chris Bertram
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Re: Berlin A100 Stadtautobahn to be further extended

Post by Chris Bertram »

The Wall was erected at great speed, so they probably didn't have enough time to source and mix the best quality stuff. The plans for it were kept pretty secret until almost the moment of construction lest word leak to the western allies.
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Re: Berlin A100 Stadtautobahn to be further extended

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The structural integrity of the actual wall wasn't the main issue though. It was the snipers and dogs, along with the threat of what would happen if you were caught alive, that was the deterant.
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Re: Berlin A100 Stadtautobahn to be further extended

Post by ravenbluemoon »

One curious thing about the new extension is that they did some future proofing when they rebuilt the Ostkreuz railway/S bahn station. The A100 is being built in tunnel for a long section here, and so they created a 130m long pair of walls that they then put the station over. That way the road can be built without disturbing the station. It does constrain the route of the autobahn - it pretty much has to go through there... not that there's much choice anyway.
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Re: Berlin A100 Stadtautobahn to be further extended

Post by murphaph »

ravenbluemoon wrote: Fri Apr 01, 2022 21:57 One curious thing about the new extension is that they did some future proofing when they rebuilt the Ostkreuz railway/S bahn station. The A100 is being built in tunnel for a long section here, and so they created a 130m long pair of walls that they then put the station over. That way the road can be built without disturbing the station. It does constrain the route of the autobahn - it pretty much has to go through there... not that there's much choice anyway.
It's a nice role reversal. Under the A100 at Innsbruckerplatz, there's a station box for a never built U-Bahn line, complete with platforms (bare concrete). I think it was to have been the U10 but the fall of the wall meant the existing north-south S-Bahn railway alignment that was in GDR hands could now just be integrated into the network and there was no good reason for a more or less parallel U-Bahn.
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Re: Berlin A100 Stadtautobahn to be further extended

Post by firefly »

Chris5156 wrote: Wed Mar 30, 2022 06:35 The Wikipedia page has some nice detail on planning and timescales, but in short there are two reasons not to get too excited. The first is that the rest of the A100 was essentially completed in 1981, apart from a gap of less than a kilometre at Sachsendamm where the route used an existing street to duck under a railway line because of the bizarre situation that the railway tracks were managed by the East Germans. Reunification solved that problem and the gap was closed in 1996. But that exception aside, when work started on stage 16 the A100 had been unchanged for the best part of 40 years.
This is not true. Anything east of Dreieck Tempelhof, now known as AS Gradestrasse, was built in the 1990s and 2000s.
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Re: Berlin A100 Stadtautobahn to be further extended

Post by jackal »

firefly wrote: Sat Apr 02, 2022 19:15
Chris5156 wrote: Wed Mar 30, 2022 06:35 The Wikipedia page has some nice detail on planning and timescales, but in short there are two reasons not to get too excited. The first is that the rest of the A100 was essentially completed in 1981, apart from a gap of less than a kilometre at Sachsendamm where the route used an existing street to duck under a railway line because of the bizarre situation that the railway tracks were managed by the East Germans. Reunification solved that problem and the gap was closed in 1996. But that exception aside, when work started on stage 16 the A100 had been unchanged for the best part of 40 years.
This is not true. Anything east of Dreieck Tempelhof, now known as AS Gradestrasse, was built in the 1990s and 2000s.
Likewise, the A113 from the end of the A100, along the canal and down to Waltersdorf was a 00s project.
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Re: Berlin A100 Stadtautobahn to be further extended

Post by murphaph »

firefly wrote: Sat Apr 02, 2022 19:15
Chris5156 wrote: Wed Mar 30, 2022 06:35 The Wikipedia page has some nice detail on planning and timescales, but in short there are two reasons not to get too excited. The first is that the rest of the A100 was essentially completed in 1981, apart from a gap of less than a kilometre at Sachsendamm where the route used an existing street to duck under a railway line because of the bizarre situation that the railway tracks were managed by the East Germans. Reunification solved that problem and the gap was closed in 1996. But that exception aside, when work started on stage 16 the A100 had been unchanged for the best part of 40 years.
This is not true. Anything east of Dreieck Tempelhof, now known as AS Gradestrasse, was built in the 1990s and 2000s.
Yeah the Blitzer, I mean Britzer tunnel is all clearly fairly new. The junction at Gradestr. was subsequently partially demolished, the east facing slips to the A100 mainline anyway. I guess the original plan was to extend the A100 eastwards on the surface but it ended up in a tunnel instead.
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