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Old August 18th, 2007, 01:29 AM   #1
Gatis
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Latvia, Riga Southern bridge - construction pictures

The same thread is in Scandi-Baltic section of this forum.

A bunch of pictures from the largest construction site in Riga - Southern bridge with it's access estacades. Taken today - by me.

Short intro
www.dienvidutilts.lv
Dienvidu tilts/Southern bridge is fourth bridge over Daugava River inside Riga City borders. It is located some 5 km to the south from city centre. We sincerely hope that it will decrease the constant congestions in Riga city - insufficient road infrastructure is considered to be one of largest barriers towards success of Riga as international centre.

Right bank (where these pictures are taken) still feels like a busy city - continuous built area here continues for many km further south. Left bank is a bit less urbanised - here the bridge reaches right on the border of Riga City and Kekava municipality - but it is comparatively denesly built area as well.

Bridge itself is 803 m long. It has got 6 pylons, each 13,33 m high. Pylons have unique design/placement of guy-wires, which made the structural calculations of construction very complicated.

As it happens frequently - the bridge itself is not the most complicated part of bridge construction. Southern bridge will have a 7 km long access roads, which will be mostly elevated, having numerous trestles/rised access roads. Total costs of whole system will exceed 700 mio EUR, althogh the bridge itself costs "only" 120 mio EUR.

Project is ordered and paid by Riga City (without any EU money). Bridge is designed by Latvian " Tiltprojekts" and "Arhitektonika", technical expertise is provided by different Russian companies from St Petersburg and Moscow. Construction is performed by consortium of Latvian companies - they lately have attracted rather many guest workers/construction specialists from Ukraine, Bulgaria, other countries. Financed by "Deutsche Bank" (loan to construction consortium, repaid by city).

Whole Southern Bridge system can be seen here:
http://www.dienvidutilts.lv/admin/files/Dienvidu1.jpg

Currently there are first and second stages under construction. First stage (bridge itself and 6 estacades on the right bank) will be completed in late 2008. Second stage was started some months ago - it is told to be more complicated and in many ways more spectacular than the first - but this thread will be about the first stage.
- - -
OK, here come pictures.

Bridge itself

Bridge from below. It is 34 m wide - will have three lanes on each direction + bycycle lanes and pedestrian lanes. 34 m - it is like a height of 10-11 floor building.


Closer view from below. Metal construction, where concrete slab is added on top. Bridge will serve also for high-pressure gas pipelines. Insinde of one of pipelines will be located also high voltage cable. Why inside? Because there is no air inside, cable will have longer lifetime and there is no oxygen available for any sparks.


One of six pylons. Bridge is tuned like a guitar - wires are fastened, after some time (when additional construction has happened) measuring is made and bridge is tuned - and thus several times. In next year the ride should be very smooth.


View towards the continuation of the bridge in right bank. We will go there soon to look at estacades. Lots of ugly, grey commieblocks - this is central-southern part of Maskacka (old nicname for this district - poorest in Riga), historical quartals have ended.


And this will be the view on Central Riga when driving across the bridge. City seems to be far away - but you still are deep in city:



- - -
Moving over to estacades:
View back, towards the Daugava river.


Now we are standing above the busy Maskavas Street, looking towards the Daugava river - and... above us is towering the third floor of estacade. Greet it - this is the first three floor estacade system in Baltics!


Traffic on Krasta/Maskavas Street hasn't been stopped by construction works - not a single hour. But four times have been shifted temporary roads.


And now - pictures of estacades - in total this crossing will have six of them:


New 11-floor apartment building. Btw. there are approved already 10 highrise office buildings at both ends of the bridge - no construction started as they are waiting for bridge to be ready and some space open for new construction works.




City is changing the windows in nearby commieblocks - now they are getting triple glass and good sound isolation.
















View towards the 500 mio EUR worth next stage (far away) - Slavu bridge.

Slavu bridge (it goes across railway) looks as if located far below. Currently it looks (and feels) like third world traffic - but soon this should be over.


That's it! Hope - you enjoyed it!

Riga is preparing next - a lot more ambitious road infrastructure project. See it here:
www.northerncorridor.lv
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Old August 18th, 2007, 02:54 AM   #2
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Sturdy Bridge

This looks like a sturdy bridge. Compare the steel work with that of the recently collapsed I35W bridge in Minnesota (USA). And of course it is cable-stayed, the most practical construction today for spans of modest length. Here, in the San Francisco Bay Area (California, USA), we are building a large self-anchored suspension bridge at great expense, not because it is necessary, but because some people like the way it looks. It should have been cable-stayed, at about half the cost. For reasons I don't understand, there seems to be few cable-stayes bridges in California, and in the USA generally. We are behind Europe in bridge technology, I think, probably because of the influence of politics.
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Old January 30th, 2008, 08:28 PM   #3
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In media ive heard that this could be not only most expensive bridge in Europe but in the world per meter( I dont relly remember but i think it was more than 30k per m). That all could cost more than 1 billion euro (1.4 billion dollars)
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Old February 3rd, 2008, 12:09 AM   #4
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Here's the project how it should look like



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Old September 12th, 2008, 08:51 PM   #5
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Here I've got some recent pics of the progress being done on the bridge!



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Old September 12th, 2008, 09:04 PM   #6
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Here are pics of it's second and third stages (the bridge itslef is just the first stage of this huge project):

Current situation on Slāvu bridge in 2008.


Reconstructed Slāvu bridge in 2011.



Current situation on Slāvu roundabout in 2008.


Reconstructed Slāvu roundabout in 2011.



Current situation on Ziepniekkalna street in 2008.


Reconstructed Ziepniekkalna street in 2011.


Continuation till Vienības gatve in 2015.
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Old September 21st, 2008, 11:01 PM   #7
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Some days ago, there were opened first 3 new overpasses:









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Old November 18th, 2008, 12:41 PM   #8
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And yes! Finally! Yesterday was the day when it's got opened! Yet only the bridge itself. That's only the first stage of the biggest construction project in the Baltics!

Here are yesterday's pics. Photos by J.Zariņš/R.Oliņš/forumer Laurijs.
First, it was opened only for pedestrians.








And since midnight it is opened for all kinds of transport.


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Old November 19th, 2008, 11:43 AM   #9
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Nice have you tried it already?
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Old May 27th, 2011, 02:48 PM   #10
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Hi all,

This bridge is known as being very expensive construction wise.. does someone know what are its annual maintenance costs ?
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