Richard Strauss Tunnel

Richard Strauss Tunnel
Richard-Strauss-Tunnel at the exit to Denninger Straße with a view to the south
use	Road tunnel
traffic connection	Middle ring
place	Munich
length	1500 m
vehicles per day	96000
Number of tubes	2
cross-section	Clear height: 4.8 m Clear width: 7.5 to 10.25 m
construction
Client	State capital Munich
building-costs	approx. € 325 million
start of building	2003
completion	2010
business
release	July 20, 2009
Location in the middle ring
red: Richard Strauss tunnel
location
Coordinates
North portal	48 ° 8 ′ 59 "  N , 11 ° 36 ′ 59"  E
South portal	48 ° 8 ′ 10 "  N , 11 ° 36 ′ 54"  E

 Map with all coordinates: OSM | WikiMap

The Richard Strauss Tunnel is a road tunnel in Munich . Richard-Strauss-Straße , Leuchtenbergring and Einsteinstraße run through the tunnel . The tunnel is part of the middle ring and has a length of 1,500 meters. It opened on July 18, 2009 and opened to traffic two days later.

location

The Richard Strauss Tunnel is located about three kilometers east of Munich city center. Together with the Effner tunnel , it is part of a 2.5 kilometer long new “Mittlerer Ring Ost” line. The tunnel has two tubes with a total of seven entrances and exits. The northern part of the tunnel in the Richard-Strauss-Straße area is in the Bogenhausen district , the southern part in the Au-Haidhausen district .

course

Richard Strauss Tunnel in the Zweigtunnel to Vogelweideplatz with a view towards the main tunnel

The northern entrance to the tunnel is on Denninger Strasse. The four-lane main direction of travel leads over the Mittlerer Ring towards Schwabing . Entrances and exits connect it to Effnerplatz . The exit of the same name is located south of Denninger Straße. This is only available in the northern direction of travel. In the further course, the exit (in the southern direction of travel) to and the access (in the northern direction of travel) from the A 94 (Munich - Passau ). This junction is single-lane and swings in a west-east direction under Einsteinstrasse . The tunnel entrances are at Vogelweideplatz .

In the main direction of travel, the tunnel continues southwards under the Leuchtenbergring. The tunnel ends south of the crossing under Einsteinstrasse. From here the line has a connection to the Ramersdorf-Perlach district .

history

First plans

The first plans for the construction of the Richard Strauss Tunnel began in the early 1980s under the CSU Mayor Erich Kiesl . These plans were stopped in 1990. This was due to the result of the local elections at the time. Since the Green Party was against the expansion of the Middle Ring, the tunnel construction project was postponed.

Referendum

Supported by the FDP , IHK Munich , Chamber of Crafts and ADAC , some CSU politicians launched the first Munich referendum entitled “The Middle Ring needs three tunnels”. On June 23, 1996, the Munich voters decided with a narrow majority for a further expansion of the Middle Ring and against the will of the city council majority made up of the SPD and the Greens.

New plans

The planning for the tunnel started from scratch in 1997. It had to be ensured that the traffic on Richard-Strauss-Straße could continue to roll in at least four lanes. This meant that the construction site had to be broken down into small pieces that had space next to the makeshift lanes.

Construction of the tunnel

Southern exit of the Richard Strauss Tunnel construction site in August 2007

General

The construction of the tunnel lasted from July 2003 to July 2009. The whole project was divided into three construction sections. Sections 1 and 2 were the Richard Strauss Tunnel. This was built using the top-down method . Here, the later roof of the tunnel is built first. In the second step, the actual tunnel will be built underneath. The area around the Böhmerwaldplatz underground station was an exception. Due to the structural conditions, the conventional open construction method had to be chosen.

600,000 cubic meters of earth were moved, 180,000 cubic meters of concrete were poured and 25,000 tons of steel were sunk into the concrete. After its completion , the tunnel will have 7,200 lined up concrete piles that form the outer walls.

Advance payments

Before construction of the tunnel could begin, some preliminary work had to be done. This began in 2000. A large canal was re-laid to transport the sewage from six parts of the city (now located west of the tunnel). In addition, other smaller sewers were built east of the current tunnel. Since 2002 a power line has been laid extensively around Richard-Strauss-Straße. The gas regulator station in Einsteinstrasse also had to give way. In early 2003, the trees on Richard-Strauss-Straße were felled as an immediate preliminary construction work .

Construction progress

Construction site on the corner of Leuchtenbergring and Einsteinstrasse in August 2007

Construction work began on all three lots at the same time. The first to be erected in 2003 was the eastern tunnel ceiling. For this purpose, the provisional lanes, sidewalks and cycle paths had to be laid to the west of it. In the southern area around Einsteinstrasse and Prinzregentenstrasse , this posed a particular challenge for planning due to the dense development.

From the spring of 2004, Einsteinstrasse and Prinzregentenstrasse became a one-way street (outwards and inwards). Construction work began on the tunnel ceiling for the southern carriageway of the side tunnel in Einsteinstrasse. In the meantime, part of the eastern tunnel ceiling of the main tunnel was completed and the carriageway could be swiveled onto it. Parts of the southern access and exit ramps have also been completed.

After the entire route had been swiveled to the eastern tunnel ceiling, construction of the western tunnel ceiling began in 2005. Like the eastern tunnel ceiling, this was built from the south. In the eastern half of the tunnel, the first excavation work began under the tunnel ceiling. At this time, the tunnel roof of the northern side tunnel and its tunnel ramps were also built. In autumn 2005 the direction of travel changes from Einsteinstrasse and Prinzregentenstrasse.

In 2006 the last work on the tunnel ceilings was finished. The southern tunnel ramps have also been completed. The excavation under the tunnel ceilings now began from all tunnel portals.

After the last excavation work, especially at the Denninger Straße exit, the shell was supplemented in 2007 with additional drainage ditches. In autumn 2007 the pavements were built and the technical interior work began. In mid-October 2007, the one-way system on Einstein and Prinzregentenstrasse was lifted.

In 2008 the technical interior work was continued in the northern area. The shell work in the southern construction section could be completed by April 2008. On the surface, the supply lines (electricity / gas / water / waste water) were (back) moved into their final position.

The final construction of the tunnel ended in June 2009. Until the opening on June 18, 2009, numerous tests of the various systems were carried out.

Opening of the tunnel

The grand opening of the Richard Strauss Tunnel took place on July 18, 2009. Munich's Lord Mayor Christian Ude , Bavaria's Minister of Economic Affairs Martin Zeil and Interior Minister Joachim Herrmann were present at the ceremony . Two children from Munich symbolically cut the ribbon. A classic car corso then rolled through the tunnel. The tunnel could then be visited on foot for a few hours before it was opened to motor vehicle traffic.

Further expansion on the surface

By the end of October 2010, the Munich Construction Department redesigned the surface above the tunnel into a peaceful, green idyll. Generous footpaths were laid out on both sides and around 900 trees were planted. One lane is still available for each direction of travel for the remaining estimated 6,000 vehicles per day. In addition, there are parking spaces on both sides of the street for stationary motor vehicle traffic. This means that the majority of the surface traffic area is still available for motor vehicles. Despite the spatial possibilities, the width of the created cycle paths is not based on the technically sensible standard width, but only meets the requirements of the minimum width for low cycle traffic or in some places even remains below.

Cost of the project

The costs of the “Mittlerer Ring Ost” construction project with Effnerplatz, Effner Tunnel, Richard-Strauss-Straße and Richard-Strauss-Tunnel as well as the various entrances and exits amounted to 325 million euros, of which the city contributed 197 million euros. The provisional traffic management for the construction period alone, including signal systems, cost 16 million euros.

Operation of the tunnel

Southern portal of the Richard Strauss Tunnel in September 2009

Technology in the tunnel

The most modern safety and operating technology at the time of construction was installed in the Richard Strauss Tunnel. There are escape doors every 60 meters in the center wall. Breakdown bays are available every 350 meters. From there the surface can be reached via an escape route. The expected 96,000 vehicles per day are monitored by cameras both in the tunnel and in the ramp areas. The state capital of Munich has invested 25 million euros in security technology.

Speed ​​limit

The speed in the tunnel is regulated by LED variable message signs ; In normal traffic, the maximum speed in the main tube - similar to other sections of the Middle Ring - is increased to 60 km / h, while in the side tunnel to the A94 the regular speed limit for inner-city roads of 50 km / h applies. The speed is monitored by induction loop- controlled flash units that are installed at six points in the main and secondary tunnels.

Special events

On the evening of October 23, 2009, the tunnel's carriageway was under water for a length of 100 meters. The reason was the independent flushing of the hydrant system with simultaneous failure of the automatic pumps. The Munich professional fire brigade first tried to remove the water with several submersible pumps. Due to the large amount of water, the technical relief organization was called in, which was able to remove the water with a high-performance pump. The tunnel could only be opened to traffic again the following day.

Namesake

→ Main article : Richard-Strauss-Straße (Munich)

Others

The opening of the Richard Strauss Tunnel has significantly improved the traffic situation in this area. However, due to the higher flow speed of motor vehicle traffic in the area of ​​the tunnel and the higher volume of rush hour traffic due to the attractiveness of the tunnel, a new bottleneck for road traffic has arisen further north, which was not sufficiently taken into account in the planning: the junction with Ifflandstraße In the Isarring ( 48 ° 9 ′ 34.4 ″  N , 11 ° 36 ′ 6.1 ″  E ), traffic lights were used to control traffic, which temporarily backed up traffic into the tunnel. After the tunnel opened in 2009, the problem was discussed controversially in the Munich City Council, which commissioned a feasibility study of all possible variants.

The feasibility study was presented in January 2011: In the long term, the carriageway from the Ifflandstrasse junction to the Dietlindenstrasse exit was to be supplemented by an interwoven strip. The space required for this was to be gained by narrowing the two existing lanes from 3.5 m to 3 m, as well as by dismantling the cycle path alongside the road at this point.

An interim solution was installed in August 2011. The two lanes of the isarring are separated from each other in front of the traffic lights with a lane divider. Each of the two lanes has its own traffic light, which is integrated in a temporary scaffolding structure as a bridge over the roadway. The left-hand lane is "permanent green" and is therefore led past the actual intersection. As usual, the right lane has the normal traffic light switching. In return, however, the left lane in front of the junction with Isaaring is no longer available on Ifflandstrasse and it is only possible to thread into Isarring in one lane instead of two lanes as before. The new lane divider, however, led to an increased number of accidents.

The expansion to three lanes was implemented in 2016. In the long term, tunneling under the English Garden in this area is under discussion.

Web links

Commons : Richard-Strauss-Tunnel  - collection of images, videos and audio files

• Gerhard Blaasch, Munich: Expansion of the Middle Ring Southwest in Munich in BauPortal 12/2010 - www.baumaschine.de/Tunnelbau - Deckelbauweise
• merkur-online.de: The way to the tunnel had many curves from July 17th, 2009
• Rundschau from July 18, 2009: ( Page no longer available , search in web archives: Richard-Strauss-Röhre is inaugurated )
• Audio contribution on br-online.de: ( Page no longer available , search in web archives: Not just light at the end of the tunnel )

Remarks

1. ↑ Costs together with the Effner tunnel

Individual evidence

1. ↑ Abendzeitung.de: Richard Strauss Tunnel: The Millions Grave on the Ring from September 6, 2009 (accessed January 9, 2018)
2. ↑ merkur-online.de: Richard-Strauss-Tunnel has been opened ( memento from August 26, 2009 in the Internet Archive ) from July 18, 2009
3. ↑ merkur-online.de: The calm above the Röhr (accessed on November 15, 2009)
4. ↑ Peter Gwiasda u. a .: Recommendations for cycling facilities . FGSV (ed.). FGSV Verlag, Cologne 2010. ISBN 978-3-941790-63-6 . FGSV number 284. Chap. 3.4
5. ↑ Supreme building authority in the Bavarian State Ministry of the Interior , Radverkehr Handbuch-Radlland Bayern , May 2011, page 34
6. ↑ merkur-online.de: "Land unter" in the Richard Strauss Tunnel on October 24, 2009 (accessed on November 15, 2009)
7. ↑ merkur-online.de: Staufalle Isarring will only be defused in 2012 on October 29, 2009 (accessed on November 15, 2009)
8. ↑ City of Munich, Ratsinformationssystem: Template no .: 08-14 / V 05912 ( Memento of the original dated December 2, 2013 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , Draft resolution: Isarring / Ifflandstrasse feasibility study Results and further procedure  ( page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. (PDF file; 635 kB)   
9. ↑ merkur-online.de: Residents disappointed: Tunnel trauma at Isarring from June 25, 2012 (accessed on July 1, 2012)
10. ↑ Marco Völklein: Isarring: One of the biggest annoyances in rush hour traffic has disappeared . In: sueddeutsche.de . ISSN  0174-4917 ( sueddeutsche.de [accessed April 26, 2017]).
11. ↑ The project | M-an English garden. (No longer available online.) Archived from the original on December 28, 2016 ; Retrieved April 26, 2017 . 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.