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Old August 20th, 2016, 10:58 AM   #13781
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How long it took to demolish these brigdes?
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Old August 20th, 2016, 11:03 AM   #13782
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Only about 12 hours. They started last evening after they closed the motorway, and early this morning it was already mostly gone.

The demolished bridges are a local road bridge called 'De Goog' and the old railroad bridge.

This is the only other road in the area that connects Muiderberg and Muiden. You can imagine why they closed the local roads, this cannot handle even 10% of motorway traffic.
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Old August 20th, 2016, 03:56 PM   #13783
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Congestion due to the closure of A1 east of Amsterdam is remarkably limited. The main cause for the delay is the long detour, not traffic congestion.

Of course, it helps that A2 has 5 lanes in each direction. And it is still summer vacation, and Saturday trips tend to be less urgent (can be rescheduled) compared to commuting traffic. This was the traffic situation around 1:30 p.m.

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Old August 20th, 2016, 09:26 PM   #13784
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A1 Muiderberg

The old railroad bridge over A1 is almost demolished. It's difficult work because they are much tougher than a small overpass.



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Old August 20th, 2016, 09:36 PM   #13785
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If they wanted a quick closure time, why didn't they go for controlled implosion + clearing the rubble? Do they want to recycle a lot of the stuff from the railway bridge?
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Old August 20th, 2016, 11:18 PM   #13786
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I'm not sure controlled explosion would be that much of a time saver in this scenario. If you factor in the careful placement of the explosives, which can take a long time, it'll probably take nearly as long as putting as much demolition equipment on it as you can fit. I mean, they got a pretty impressive number of digger things working on it.
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Old August 20th, 2016, 11:30 PM   #13787
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Yep, and the new arch bridge is located literally right next to it. Even a controlled explosive demolition could damage it.
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Old August 21st, 2016, 12:00 AM   #13788
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Quote:
Originally Posted by Slagathor View Post
I'm not sure controlled explosion would be that much of a time saver in this scenario. If you factor in the careful placement of the explosives, which can take a long time, it'll probably take nearly as long as putting as much demolition equipment on it as you can fit. I mean, they got a pretty impressive number of digger things working on it.
no a explosion is not faster, because what the most people dont see is the preperation time, drill holes, fill with explosives, install the cables, the blast itself is fast

additional a explosion can damage the new infrastructure and during the installation of the explosive parts all other operations would be blocked because safety area, demolish is quite faster and safer
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Old August 21st, 2016, 03:11 PM   #13789
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Another big project ongoing this weekend is the installation of a new road & bicycle bridge across the locks at Limmel (near Maastricht) in southern Netherlands.

It is 77 meters long, 7 meters wide and weighs 360 tonnes. It is the steel frame, concrete will be poured once it is installed.

It's part of a project to replace the 80 year old locks of the Juliana Canal. The whole project is planned to be completed in 2018.

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Old August 21st, 2016, 04:33 PM   #13790
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A1 Muiderberg

The demolition works of the railroad bridge across A1 near the Muiderberg motorway interchange are running behind schedule. The main culprit is the abutment on the north side of the motorway, which proves more difficult to demolish than they anticipated. Westbound A1 may not open in time tomorrow morning.

Eastbound works are doing okay, they still plan to open the new alignment of eastbound A1 tomorrow morning at 5 a.m.

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Old August 21st, 2016, 07:42 PM   #13791
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Quote:
Originally Posted by ChrisZwolle View Post
Only about 12 hours. They started last evening after they closed the motorway, and early this morning it was already mostly gone.

The demolished bridges are a local road bridge called 'De Goog' and the old railroad bridge.

This is the only other road in the area that connects Muiderberg and Muiden. You can imagine why they closed the local roads, this cannot handle even 10% of motorway traffic.
Taking the local road over the Vecht when the A1 beidge was opened was not really faster anyway than wating on the motorway. Perhaps if the timing is perfect. On the other side, taking the shortcut via the shell gas station is quite popular there. Dont know how that compares. Anyway. The aquaduct will be a great improvement.

Had a family visiting yesterday and they would all normally have to take the A1. Some of them knew and chose a different route some of them did not and were stuck on the retours.
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Old August 21st, 2016, 09:09 PM   #13792
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Quote:
Originally Posted by ChrisZwolle View Post
It will be demolished. The old motorway has a bascule bridge across the Vecht River that opens rather frequently. A bridge opening outside of rush hour usually results in a 5 km queue. Traffic is intense throughout the day and week with almost 200,000 vehicles per day.

The new alignment is wider (a minimum of 5+2+5 lanes) and has an aquaduct under the Vecht River. It is also farther from the town of Muiden, improving the quality of life there.
I disagree, roads improve the quality of life, there's a big sounds barrier so I doubt the noise was bad, especially since the residences start ~150m further.

It's an awful shame they will demolish the whole of it, you can think of many uses of a bit of tarmac. Hell even as a drag strip, though that is fantasy in NIMBY PC NL.

It's funny how in NL many people dislike roads, while in Eastern Europe nearly everyone applauds new roads. Only in NL (or maybe some other eco hippie country) perfectly good roads are destructed or downgraded after building a new road. In PL I've yet to see such examples, when they build a new road around the village they ensure people use it, by making it the better route compared to the old one, instead of going ''duurzaam debiel'' on the old road or even removing it (like they did the old A2 at Utrecht). Eg. Garwolin/S17, they left the main road though the town exactly as it is, no downgrading or speedbumping.
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Old August 22nd, 2016, 12:16 AM   #13793
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Drone video from the A1

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Old August 22nd, 2016, 11:09 AM   #13794
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Video of the rail road bridge:

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Old August 22nd, 2016, 11:19 AM   #13795
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Italian newspapers are writing about the Dutch proposal of banning the sale of diesel and petrol cars in 2025. How serious is this?
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Old August 22nd, 2016, 01:02 PM   #13796
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Not. The government has decided to strive to a 100% electrical sales figure for new cars in 2025, but it will not be before 2035 before it can be legally so due to some agreements, and even than it is unlikely. Also, the tax benefits for electrical cars are decreasing in the last years to save the state some money.
I heard that American newspapers wrongly translated some Dutch articles last week and it has reached the news there, so that's probably the reason why you also heard the wrong thing.
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Old August 22nd, 2016, 01:19 PM   #13797
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Americans and their useless foreign language skills...
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Old August 22nd, 2016, 02:25 PM   #13798
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Quote:
Originally Posted by ChrisZwolle View Post
The demolition works of the railroad bridge across A1 near the Muiderberg motorway interchange are running behind schedule. The main culprit is the abutment on the north side of the motorway, which proves more difficult to demolish than they anticipated. Westbound A1 may not open in time tomorrow morning.

Eastbound works are doing okay, they still plan to open the new alignment of eastbound A1 tomorrow morning at 5 a.m.

Very impressive! In Germany something like this would take three years at least...
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Old August 22nd, 2016, 03:26 PM   #13799
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A great video by ProRail detailing the demolition of the old railroad bridge and the sliding in of the new arch bridge.




And a video driving over the new A1. It's huge.

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Last edited by ChrisZwolle; August 22nd, 2016 at 03:32 PM.
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Old August 22nd, 2016, 05:46 PM   #13800
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Quote:
Originally Posted by ChrisZwolle View Post
A great video by ProRail detailing the demolition of the old railroad bridge and the sliding in of the new arch bridge.

gB383vT60tA
http://www.skyscrapercity.com/showpo...ostcount=13794

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