Galgenbuck tunnel

Galgenbuck tunnel
use	Motorway tunnel
traffic connection	Feeder to
place	Neuhausen am Rheinfall
length	1138 m
Number of tubes	1
Largest coverage	20 to 70 m
construction
Client	Federal Roads Office FEDRO
building-costs	215 million francs
start of building	October 2011
completion	2019
business
toll	without motorway vignette
release	December 6, 2019
location
Coordinates
Tightness	687872  /  282930
Railway valley	688814  /  282960

 Map with all coordinates: OSM | WikiMap

The Galgenbuck tunnel is a road tunnel in the municipality of Neuhausen am Rheinfall in the canton of Schaffhausen in Switzerland . It serves as a bypass of the community Neuhausen am Rheinfall as well as a direct connection of the Klettgau ( Hauptstrasse 13 / Hauptstrasse 14 ) with the A4 to Winterthur resp. to Germany. The main road 4 from the airport Zurich - Bülach for Schaffhausen is guided by the Galgenbuck tunnel. As an object of the A4 connection Schaffhausen-Süd , the tunnel is part of the national road network , but may be used without a motorway vignette.

location

The western portal is located in the narrow area between Beringen and Neuhausen am Rheinfall. The eastern portal is located directly below Charlottenfels Castle in the so-called Bahnal Valley , between the embankments of the SBB Rhine Falls Railway (Schaffhausen - Winterthur line) and the DB Hochrheinbahn (Basel Badischer Bahnhof - Schaffhausen - Konstanz).

Surname

The Galgenbuck is a hill about 110 meters above the Rhine. The gallows of the city-state of Schaffhausen, visible from afar, stood on it for centuries . The last execution on the Galgenbuck took place on February 18, 1822.

Construction

The single-tube tunnel is 1138 meters long and has a continuous gradient of 4.5%. He crosses under the Galgenbuck in a large arc . 77 meters (Narrow 47 meters and Bahnal 30 meters) were excavated using opencast mining , the remaining 1061 meters were excavated using blasting with almost 1000 explosive charges weighing 125 - 175 kg. There were 171,000 m³ of excavated material. An escape tunnel is integrated in the utility duct below the roadway. The two-lane tunnel expands to three lanes just before the portals. The two exit lanes are intended to liquefy the traffic from the tunnel.

The Galgenbuck tunnel is only half connected to the A4. The connections Klettgau - Winterthur and Germany - Klettgau are designed to be free of crossings. For the connections Winterthur - Klettgau and Klettgau - Germany a short distance has to be covered on the road network of the city of Schaffhausen. The traffic at the connection Schaffhausen Süd is carried over 9 lanes on 2 levels. The tunnel is connected in the narrow area via a roundabout with a bypass in the direction of Klettgau.

The crossing under the Charlottenfelstunnel of the Deutsche Bahn (DB) at a distance of only 6 meters required prior geological explorations, reinforcement measures in the DB tunnel and interruptions to rail operations during the blasting.

Since it is legally a matter of redesigning a national road connection, the federal government took over the costs of around CHF 215 million in full as part of the restructuring of financial equalization and the division of tasks between the federal government and the cantons. Originally, it was expected to cost CHF 240 million.

history

The steadily increasing car traffic through Neuhausen am Rheinfall led to the Galgenbuck tunnel being included in the structure plan of the canton of Schaffhausen in 1970 . A traffic relief study by ETH Zurich in 1992 showed that the promotion of public transport does not offer a sufficiently large alternative to tunnels. Four years later, the A4 Schaffhausen ring road with the Fäsenstaubtunnel , the cable-stayed bridge over the Rhine and the Cholfirsttunnel was opened in 1996 . No special preparatory structures were made for a later construction of the Galgenbuck tunnel. In 2000, the two federal parliamentarians from Schaffhausen, Councilor of States Peter Briner and National Councilor Gerold Bührer jointly submitted a postulate calling for an extension of the A4 connection Schaffhausen Süd in favor of Neuhausen am Rheinfall. A year later, the Federal Roads Office FEDRO commissioned the canton of Schaffhausen with the development of a general project for the Galgenbuck tunnel . At the end of 2005 the Federal Council approved the general project for the redesign of the connection with the Galgenbuck tunnel. The public plan was issued at the beginning of 2009 and a year later the Federal Department of the Environment, Transport, Energy and Communication DETEC issued the planning permission for the tunnel. Preparatory work began on both tunnel portals in February 2011. The official start of construction took place in October 2011. The tunneling work began in July 2013 and the tunnel breakthrough was celebrated in February 2016. This was followed by the structural and interior work and the equipment of the tunnel. The tunnel was finally opened to traffic on December 6, 2019.

When construction began, over 25,000 vehicles drove through Neuhausen am Rheinfall every day. The traffic planners expect traffic to be halved after commissioning.

Web links

• ASTRA: Galgenbuck tunnel

Individual evidence

1. ↑ Schaffhausen Regional Nature Park / Schaffhausen University of Education : Galgenbuck, Radacker, Henkerbrünnli - A visit to the past (PDF, naturpark-schaffhausen.ch ).
2. ↑ Federal Roads Office FEDRO: Galgenbuck Tunnel, Info No. 17 from November 2019.
3. ^ Opening of the Galgenbuck tunnel In: Schaffhauser Nachrichten . 20th November 2019.
4. ^ Federal Roads Office FEDRO: Galgenbuck tunnel - rail valley
5. ↑ Happy day for Neuhausen - Galgenbuck tunnel inaugurated after eight years of construction On: Swiss radio and television from December 4, 2019