Ulmberg Tunnel

Ulmberg road tunnel
	Aussersihl north portal
use	Road tunnel
traffic connection	Hauptstrasse 3 (Tunnelstrasse)
place	Zurich
length	254 m
Number of tubes	2
construction
completion	1875/1967
business
operator	Zurich city
location
Coordinates
North portal	682379 / 246957
South portal	682560 / 246771

Ulmberg railway tunnel
	South portal Enge station
use	Railway tunnel
traffic connection	Left bank Zurichseebahn
place	Zurich
length	848 m
Number of tubes	1
construction
start of building	1919
completion	1925
business
operator	SBB
release	1927
location
Coordinates
North portal	681936 / 247306
South portal	682440 / 246630

Floor painting in the newly designed people tunnel

The Ulmberg tunnels are three tunnels of a railroad tunnel and a road tunnel under a moraine ( 436 m above sea level ) in the Zurich district of Enge . The tunnels connect the Sihl near Wiedikon , which is separated from the 25 meter high hill, and the banks of Lake Zurich in the narrow area.

Old railway tunnel at the time of the First World War

Ulmberg railway tunnel

Legend

	from Zurich HB
2.93	Zurich Wiedikon 405 m above sea level M.
	Wiedikon-Ulmberg Tunnel (848 m)
	Manessetunnel ( SZU freight line (track 3) to Giesshübel - Sihltalbahn )
3.41
3.93	Zurich Narrow	409 m above sea level M.
	Engetunnel (903 m)
	to Zurich Wollishofen

Sihl waterfall over the Ulmberg tunnel

The first brick tube was built for the left bank Zurichseebahn , which opened in 1875 . The railway line was lowered around 50 years later and moved a little to the west. For this purpose, a new, around 848 meter long tunnel was built between the new Zurich Enge train station and the Zurich Wiedikon train station . The new line was opened in 1927. The old tunnel of the disused line was converted into a road tunnel. In 1967 the road tunnel was extended by a second tube to the east. The old tube was extended to approx. 254 meters. In addition, a people tunnel was set up for two-wheeled traffic and pedestrians, which came to lie above the main tunnel built by mining.

The new railway tunnel has an overlay of a maximum of 20 meters. The crossing under the Sihl and the following stretch to the Wiedikon train station - also known as the Wiedikon tunnel - were constructed using the cut-and- cover method. The Sihl falls in a waterfall over the walls of the tunnel - the river originally ran around 4.6 meters deeper here. During the tunnel construction, the branching Manessetunnel was built, which connects the SZU lines with the SBB network.

The Sihltalbahn crosses the road - originally the Seebahn - just before the north portal of the tunnel on a bridge.

The road tunnel is not just a quick connection between the Wiedikon and Enge quarters. The route also serves as an important feeder from the southern and eastern parts of the city to Sihlhochstrasse , which forms the connection to the A3 motorway .

In 2011 and 2012, renovation work was carried out on the road tunnel. The people tunnel was optically enhanced with a floor painting by the artists Sabina Lang and Daniel Baumann.

Map with all coordinates: OSM | WikiMap

Web links

Commons : Ulmberg tunnel - collection of images, videos and audio files

3-D reconstruction of the Ulmberg tunnel in Zurich

Individual evidence

↑ ^a ^b Police Department, Civil Engineering and Disposal Department: The Ulmberg Tunnel is getting on in years. Press release. In: City of Zurich. September 9, 2011, accessed March 7, 2015 .
^ Matthias Dürst: The Tunnelstrasse. In: Gang dur Züri. Retrieved March 7, 2015 .
^ Matthias Dürst: The Zurich Enge train station. In: Gang dur Züri. Retrieved March 7, 2015 .
^ Charles Andreae: One Hundred Years of Swiss Tunneling . In: Quarterly publication of the Natural Research Society in Zurich (= New Year's Gazette ). Volume 92, Supplement 5. Fretz Brothers, Zurich December 31, 1947, p. 13 ( ngzh.ch [PDF]).
^ Ruedi Baumann: The mysterious rails of the railway king. In: Tages-Anzeiger. November 30, 2011, accessed March 7, 2015 .
↑ Thomas Vogel: StrucTuricum . 2nd Edition. vdf Hochschulverlag, Zurich 2013, ISBN 978-3-7281-3563-6 , Wiedikoner-Tunnel, p. 304 ff . ( limited preview in Google Book search).
↑ Repair of the Ulmberg tunnel, dismantling and installation of the existing tunnel lighting. Details of the tender. In: DTAD.de. March 29, 2011, accessed March 7, 2015 .

[stzh1-1] Police Department, Civil Engineering and Disposal Department: The Ulmberg Tunnel is getting on in years. Press release. In: City of Zurich. September 9, 2011, accessed March 7, 2015 .

[2] Matthias Dürst: The Tunnelstrasse. In: Gang dur Züri. Retrieved March 7, 2015 .

[3] Matthias Dürst: The Zurich Enge train station. In: Gang dur Züri. Retrieved March 7, 2015 .

[4] Charles Andreae: One Hundred Years of Swiss Tunneling . In: Quarterly publication of the Natural Research Society in Zurich (= New Year's Gazette ). Volume 92, Supplement 5. Fretz Brothers, Zurich December 31, 1947, p. 13 ( ngzh.ch [PDF]).

[5] Ruedi Baumann: The mysterious rails of the railway king. In: Tages-Anzeiger. November 30, 2011, accessed March 7, 2015 .

[6] Thomas Vogel: StrucTuricum . 2nd Edition. vdf Hochschulverlag, Zurich 2013, ISBN 978-3-7281-3563-6 , Wiedikoner-Tunnel, p. 304 ff . ( limited preview in Google Book search).

[7] Repair of the Ulmberg tunnel, dismantling and installation of the existing tunnel lighting. Details of the tender. In: DTAD.de. March 29, 2011, accessed March 7, 2015 .