Lieferinger tunnel
| Lieferinger tunnel | ||||
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 East portal of the Lieferinger Tunnel
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| use | Road tunnel | |||
| traffic connection | A 1 western motorway | |||
| place | Salzburg | |||
| length | 503 m | |||
| vehicles per day | 77,160 (2014) | |||
| Number of tubes | 2 | |||
| construction | ||||
| Client | ASFINAG | |||
| building-costs | 150 million schillings (10.9 million euros) | |||
| start of building | June 21, 1999 | |||
| completion | October 13, 2001 | |||
| business | ||||
| operator | ASFINAG | |||
| toll | No | |||
| location | ||||
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| Coordinates | ||||
| West portal | 47 ° 49 ′ 18 ″ N , 13 ° 0 ′ 27 ″ E | |||
| East portal | 47 ° 49 ′ 27 " N , 13 ° 0 ′ 47" E | |||
Map with all coordinates: The Lieferinger Tunnel is a road tunnel built for environmental reasons and completed in 2001 on the Austrian western motorway (A1) in the city of Salzburg .
location
The Lieferinger Tunnel in the Liefering district of Salzburg extends within the motorway kilometer points 291 and 293 and is located between the Salzburg Mitte and Kleßheim exits at 417 m above sea level. A. Its western side touches the small Lieferinger hill at its south-eastern end. There is no gradient within the tunnel area.
History and meaning
The construction of the planned Reichsautobahn as a continuation from Munich to Vienna began shortly after the annexation of Austria in the presence of Adolf Hitler with a groundbreaking ceremony on April 7, 1938 at the Walserberg . The route of the motorway ran through the middle of today's Salzburg district of Liefering , which at the time was a rural village that still belonged to the commune of Siezenheim at that time . The autobahn route was perceived as a painful split in the established local unity of Liefering and, until recently, as a "landscape wound". Inmates of a nearby labor camp of the National Socialist Reich Labor Service in Bergheim were used to build the road . By 1942, the road was essentially completed up to today's exit Salzburg Mitte, after which construction came to a standstill due to the circumstances of the war. After the war, the section from the Kleßheim exit to Salzburg Mitte, where the Lieferinger Tunnel is located today, was used for annual motorcycle races from 1947 to 1965.
With the increasing traffic on the road, which was also used as a city motorway and bypassing Salzburg in the following decades, the noise and emissions pollution became an ever greater problem for the residents. In the 1980s, a noise barrier was built in the area of the current tunnel , but it was considered inadequate. Demands for tunneling under the motorway section in the area of Alt-Liefering were vehemently loud as early as 1991. In 1996 the proponents of the tunnel presented a plan for the “Liefering environmental protection tunnel”. In the course of further planned construction work in the area of the motorway, construction of the tunnel finally began on June 21, 1999. As of November 6, 2000, the first tube in the direction of Munich was used with oncoming traffic. The completed tunnel was officially opened on October 13, 2001.
The importance of the tunnel for the local population lies on the one hand in the environmental aspect; it brought a noticeable reduction in noise and pollution for the neighbors. About a decade and a half later, people were still talking about the Liefering people, "who [...] are particularly pleased about the enormous improvement in quality of life since the construction of the Lieferinger Tunnel". On the other hand, the importance of the tunnel goes beyond that. The roofing of the motorway and thus its visual elimination as well as the restoration of a walkable spatial entity of the center of Liefering is perceived as a long-awaited “reunification” of the village. In order to take into account the interests of the population, after the completion of the first section, the population was officially invited to take part in a “tunnel look” on June 9, 2000.
An alternative name for the Lieferinger Tunnel is the environmental protection tunnel . In addition, the tunnel was popularly known for a long time - and is often still today - as the Gabi Tunnel , named after the later Governor of Salzburg, Gabi Burgstaller , who was previously responsible for matters relating to tunnel construction as Regional Councilor for Transport. Gabi Burgstaller, together with Liselotte Huber, the owner of the traditional Lieferinger Gasthaus Hartlwirt, was also the tunnel sponsor .
Construction, construction and transport
The construction of the Lieferinger Tunnel was part of a larger construction project. At the same time as the tunneling underway, the Salzburg Mitte motorway exit at the intersection of the motorway with Münchener Strasse (B155 ) was completely redesigned in the form of a roundabout (distribution circle). The same construction lot also included the completion of the six-lane expansion of the motorway between Salzburg-Nord and the Salzburg junction in the Liefering area, as well as the construction of further noise barriers in this section. The work was carried out by Universale Bau GmbH . The construction of the Lieferinger Tunnel and the Salzburg Mitte distribution circle was documented by the State of Salzburg on DVD, which can be purchased.
Construction engineering
Originally, the Liefering residents demanded an underground tunnel up to the railway bridge on the Rosenheim – Salzburg line , which was discarded for reasons of cost. After a length of 450 m had been planned in the meantime, the decision was made at the beginning of 2000 to extend it by 50 m. The two-tube Lieferingen tunnel is now 503.5 m long, 220 m of which is three-lane in each direction, the rest four-lane. Within the tunnel area, the exit Salzburg-Mitte branches off in the direction of Vienna and in the opposite direction an access lane leads onto the motorway, also within the tunnel. The largest tunnel cross-section is around 22 m.
The tunnel construction rests on 90 cm thick bored piles, which were driven into the ground between 5 and 36 m at intervals of 3 m. The subsoil consists of flysch rock overlaid with a layer of sea clay. The concrete structure also partially weighs on flat foundations.
In 2007 technical inspections were carried out on the tunnel. Both tunnel tubes were modernized in the second half of 2016. The safety equipment was brought up to date, the ventilation improved and a new surface applied to the roadways. The costs were estimated at 18.3 million euros.
traffic
At the time of construction, the motorway was used by around 68,000 vehicles a day in the tunnel section, which was the second highest traffic density on the entire western motorway. At that time, an increase of 96,000 vehicles by 2015 was estimated. Another estimate was around 100,000 vehicles per day in 2010. In fact, the section of the motorway with the Lieferinger Tunnel was used by 77,160 vehicles per day on a weekly average in 2014, with the highest frequency on Fridays at an average of almost 90,400 vehicles. The tunnel was least frequented on Sundays and public holidays with an average of 57,260 vehicles on such days.
In the tunnel area - as in the entire area of the city of Salzburg on the autobahn - a speed limit of 100 km / h applies on the basis of the Austrian Air Pollution Control Act (IG-L) due to the fact that pollutant limits are exceeded here . In February 2014 this was reduced to 80 km / h on a trial basis. The speed reduction resulted in a 6 to 7% decrease in nitrogen oxides emitted , which would correspond to a total closure of the road for 26 days. With an ordinance of the Salzburg Governor of March 3, 2015, an immission-dependent speed limit of between 80 and 100 km / h has been in effect in the motorway section with the Lieferinger Tunnel. Regardless of this, only 80 km / h are allowed in the tunnel itself. The legal basis for this is an ordinance issued by the Federal Ministry for Transport, Innovation and Technology for traffic safety reasons .
Overlap
A district committee dealt with the design of the ceiling area and the area was designed according to the needs of the residents. One of the two main roads connecting the Liefering district, the Lieferinger Hauptstrasse , leads over the tunnel ; A small parking lot was created to the east of it. A footpath and bike path crosses to the extreme west of the tunnel roof. The remaining area of the cover on the west side of Lieferinger Hauptstrasse was designed as a leisure space. The local population perceives the square as a new village square, on which events such as maypole erection or light well concerts take place repeatedly . There is a fountain and, since 2004, a children's playground, the 14,500 m² tunnel playground with a separate hard court for ball games. In addition, there are two display boards of the Lieferinger Kulturwanderweg in the area , one of which is dedicated to the role of the Autobahn in Liefering and thus also the Lieferinger Tunnel.
Web links
proof
- State of Salzburg: construction lot Liefering ,
- ↑ a b Permanent counting stations for the whole of 2014. (MS Excel) (No longer available online.) ASFINAG, archived from the original on March 5, 2016 ; Retrieved January 3, 2016 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Liefering. The Village in the City , ed. from the board of trustees of the Peter Pfenninger donation Liefering, [o. V.] Salzburg 1997, p. 215.
- ↑ a b Salzburger Landeskorrespondenz, November 6, 2000 , accessed on January 3, 2016.
- ↑ Salzburger Volkspartei Liefering ( Memento of the original from January 3, 2016 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. , accessed December 30, 2015.
- ↑ The Lieferinger Kulturwanderweg , ed. from the Salzburg-Liefering District Museum Association. [O. V.] Salzburg 2006, p. 55.
- ^ Salzburger Landeskorrespondenz, June 5, 2000 , accessed on December 30, 2015.
- ↑ Landversand ( Memento of the original from December 20, 2016 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. , accessed on January 3, 2016.
- ↑ Salzburger Landeskorrespondenz, January 11, 2000 ( Memento of the original from December 20, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , accessed on January 3, 2016.
- ↑ laabmayr.at , accessed on January 3, 2016.
- ↑ asfinag.at ( Memento of the original from December 20, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. , accessed December 6, 2016.
- ↑ Construction lot Liefering ( Memento of the original dated May 5, 2005 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. .
- ↑ Salzburger Landeskorrespondenz, June 12, 2014 , accessed on January 3, 2016.
- ↑ State Law Gazette No. 25/2015 (West Autobahn Speed Limitation Ordinance 2015).
- ↑ salzburg.at , accessed on January 3, 2016.
- ↑ Playgrounds Liefering , accessed on December 30, 2015.
