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Old June 27th, 2016, 05:48 PM   #13661
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N31 Harlingen

The 3000 ton and 60 meter long railroad viaduct across the future N31 expressway in Harlingen was installed on its final location this weekend. The works included a 100 hour shutdown of the railroad.


Luchtfoto spoor by N31 Harlingen, on Flickr



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Old June 28th, 2016, 05:41 PM   #13662
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N344 Wilhelmina Bridge, Deventer

The Wilhelmina Bridge across the IJssel River in the city of Deventer will be renovated this summer. In order to keep the construction time short, the bridge will face a complete closure to regular traffic from 18 July to 21 August.

As it is the only non-motorway bridge in the area, it carries a lot of regional commuter traffic into the city, which will be detoured via A1. Only emergency services, cyclists and buses will be able to cross the bridge on a temporary deck.

They will replace the concrete bridge deck during the full closure. Other works, such as painting, conserving and other works below deck are done from May to December.

The Wilhelmina Bridge was the last major arch bridge in the Netherlands to start construction before World War II. Construction started in 1939 and was continued by the Germans and the bridge was completed in 1943. However, the bridge was blown up by retreating German forces in 1945 and rebuilt by 1948. It previously underwent renovation works in 1998-1999.

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Old June 28th, 2016, 06:08 PM   #13663
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The Wilhelmina Bridge was also the bridge used in the 1977 blockbuster ''A bridge too far'' (doubling for the bridge at Arnhem).


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Old June 29th, 2016, 10:34 PM   #13664
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A6 Almere

The consortium 'Parkway 6' (John Laing Investments, Rebel Valley, Dura Vermeer and Besix) has reached financial close on 8 June for the PPP project to expand the A6 through Almere from four to eight lanes. The value is € 300 million.

The motorway will be expanded with a local / express system through the city of Almere. Construction will begin next year and is planned for completion in 2020. It is the easternmost leg of the 'Schiphol - Amsterdam - Almere' megaproject.

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Old June 29th, 2016, 10:54 PM   #13665
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A1/A6 Diemen - Almere

The PPP project of the SAAone consortium to expand A1 and A6 between Diemen (Amsterdam) and Almere has been successfully refinanced. They reduced the cost by € 470 million and a portion of this flows back to the government (it is not stated how much this is). It's the first ever refinancing of a Rijkswaterstaat PPP project.

The consortium takes advantage of the low interest rates. The original financing dates back to 2013. The project is now rapidly nearing completion with some new infrastructure already partially in service and some becoming operational late summer.

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Old June 29th, 2016, 11:08 PM   #13666
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Quote:
Originally Posted by ChrisZwolle View Post
The consortium 'Parkway 6' (John Laing Investments, Rebel Valley, Dura Vermeer and Besix) has reached financial close on 8 June for the PPP project to expand the A6 through Almere from four to eight lanes. The value is € 300 million.

The motorway will be expanded with a local / express system through the city of Almere. Construction will begin next year and is planned for completion in 2020. It is the easternmost leg of the 'Schiphol - Amsterdam - Almere' megaproject.
Isn't 2 express/2 local lanes generally less efficient than regular 2x4?
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Old June 30th, 2016, 01:01 AM   #13667
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It is in a number of ways, though there are (IMO less meaningful) arguments in favor, but our road authority seems to have a bit of a fetish for local/express setups.
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Old June 30th, 2016, 02:45 AM   #13668
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local-express is really good!
but should be at least 3+3+3+3
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Old June 30th, 2016, 03:36 PM   #13669
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They have some kind of obsession to 'separate local and through traffic'. It could be useful, but not with only 8 lanes.

It often results in unbalanced traffic loads, a prime example is A2 at 's-Hertogenbosch where traffic volumes on the collector lanes are higher than anticipated. It seems to work reasonably fine on A12 at Utrecht and A16 at Rotterdam.

Collector-express systems are also less favorable for maintenance & construction, snow removal, incident management and their width requirements.
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Old June 30th, 2016, 03:41 PM   #13670
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A1/A27 widening

Road Authority Rijkswaterstaat has conditionally awarded the expansion of A1 and A27 (Utrecht - Hilversum - Amersfoort) to a consortium known as 3Angle (Heijmans, Fluor and 3i Infrastructure). It is a PPP project which includes 25 years of operations and maintenance. The contract value is € 220 million, of which 50% is for the major Dutch construction company Heijmans.

A1 from Hilversum to Amersfoort will be widened from 2x2 to 2x4 lanes. A27 from Utrecht to Hilversum will be widened from 2x2 to 2x3 lanes, with space for 2x4 lanes.

Financial close is expected in October. The expansion project will be completed by 2019.

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Old July 1st, 2016, 09:12 AM   #13671
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Why 2x3 instead of 2x4 immediately
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Old July 1st, 2016, 08:27 PM   #13672
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Traffic volumes on A27 are a bit lower than on A1. The truck share is also lower. But I agree, it would've been better if they also expanded it to 2x4 lanes.

A couple of recent PPP projects turn out to be significantly under budget.

* A1/A27 widening (previous post) has a value of € 220 million, which is less than the € 261 million budget.
* A1/A6 DBFM refinancing resulted in a cost saving of € 471 million.
* N7 Groningen project was awarded for € 388 million, significantly less than the € 666 million budget.
* A4 Delft - Schiedam was awarded € 292 million under budget (but had a € 70 million cost escalation).

These are all PPP schemes based on availability payments. So the hundreds of millions do not suddenly become available as discretionary funding for other projects. They lower the cost of the availability payments and at least for A1/A6, the refinancing cost saving is partially for the constructors and partially for the government as outlined in the contract. So don't expect a shower of new projects being started due to these under-budget projects.
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Old July 1st, 2016, 09:09 PM   #13673
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Interest rates are low, and so is construction inflation. House building has still not picked up speed and there is still an immense office space glut.

This is a very good time to tender infrastructure PPP deals. Financing is cheap, and construction companies still have plenty of spare-capacity.
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Old July 1st, 2016, 11:19 PM   #13674
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Quote:
Originally Posted by TM_Germany View Post
Isn't 2 express/2 local lanes generally less efficient than regular 2x4?
Yes, it is far less efficient on most motorways. Certainly when interchanges with other motorways only connect to the local lanes, it really becomes problematic.
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Old July 1st, 2016, 11:24 PM   #13675
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The local-express setup on A2-Den Bosch kinda helps through traffic, but snarls local traffic indeed (and apparently at increasing hours).
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Old July 2nd, 2016, 09:56 AM   #13676
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Quote:
Jan Blanken Bridge
What is/was the reason they didn't demolisch the old bridge?
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Old July 2nd, 2016, 01:19 PM   #13677
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I believe partly cost-based. But also that strong vocal opposition against demolishing came from surrounding towns as they wanted the monumental bridge to stay. Isn't that the same case with the Nieuwegein bridge?
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Old July 2nd, 2016, 01:23 PM   #13678
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Quote:
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The local-express setup on A2-Den Bosch kinda helps through traffic, but snarls local traffic indeed (and apparently at increasing hours).
Nowadays it's the express lanes that are backed up as well, mainly from the Hintham interchange heading south due to the tight merge point near the meuse-bridge.

The main bottleneck seems to be the section between the two A59 interchanges though, also because the local intersection in the middle is very busy as well! The A59 in both directions (Oss and Waalwijk) is also blocked up a lot.

Chris, do you no if there are plans/possibilities to expand the 4*2 set-up of the A2 and the 2*2 set-up of the A59?
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Old July 2nd, 2016, 02:00 PM   #13679
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There are no concrete plans to widen A2 or A59 in the 's-Hertogenbosch / Oss area.

The Maas River Bridge has been extended from 2x2 to 2x3 lanes on the existing pavement, so it was a cheap widening. Present-day traffic volumes are near 130,000 vehicles per day, which is quite high for a six-lane motorway with a sizable amount of truck traffic.

In other news this week, Rijkswaterstaat was resurfacing A28 near Haren, south of Groningen City. The emulsion did not attach to the pavement as well as they thought, resulting in a lot of dirty cars. Rijkswaterstaat offered a free car wash, which resulted in chaos as thousands of motorists showed up. People had to wait for hours. They canceled the free car wash due to traffic chaos and now offer to reimburse motorists who drove that stretch.

Some more news, the speed limit on A27 has been raised to 130 km/h day and night, on a 21 kilometer stretch of motorway from the Eemnes interchange (A1) to the Almere interchange (A6).
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Old July 2nd, 2016, 08:24 PM   #13680
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In other news this week, Rijkswaterstaat was resurfacing A28 near Haren, south of Groningen City. The emulsion did not attach to the pavement as well as they thought, resulting in a lot of dirty cars. Rijkswaterstaat offered a free car wash, which resulted in chaos as thousands of motorists showed up. People had to wait for hours. They canceled the free car wash due to traffic chaos and now offer to reimburse motorists who drove that stretch.
Guy in the street...242€ to get everything clean again....

Not his car...

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