A3 motorway (Switzerland)

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A3 shield}}

Location of the A3 within Switzerland
Route information
Length180 km (110 mi)
Major junctions
FromA35 at French border
Highway system
Highways in Switzerland

Motorways of Switzerland

Glarner Alps as seen from the A3 motorway, Canton of Glarus, Switzerland.
Aerial photograph of the A3 motorway splitting into 2 routes.
The A3 motorway seen at the junction with the Uetliberg Tunnel, in Wollishofen, Zürich.

The A3 is a motorway in northeast Switzerland, running diagonally from France toward the southeast border, and passing by Zürich on the way. The total length of the A3 motorway spans roughly 180 kilometres (110 mi), but parts of the road share sections of the A1 and A2 motorways.

The A3 belongs to the Swiss motorway network. It starts at the border in Basel, where it connects to French motorway A35. From the Wiese Motorway Fork, the route is shared with the A2.

At Augst, the motorway splits, with the A2 branching off and the A3 continuing past Rheinfelden and Frick. After the Bözberg tunnel is the Birrfeld Motorway Fork, near Birmenstorf. Here, the A1 and A3 share the same route as far as Motorway Interchange Limmattal, where the A3 goes towards Urdorf and the Uetliberg Tunnel which was opened on May 4, 2009. After Zürich the motorway weaves through the hills of the south-east bank of Lake Zürich. It continues along the Walensee (Walen Lake), and on to Mels where it ends at a junction with the A13.

The A3 represents (together with a section of the A1) the most important connection between Basel and Zürich, and (together with a section of the A13) the most important connection Zürich–Chur.



A special feature is the highway section at Lake Walen. Between Weesen and Murg in 1964, the N3 center was opened as a main road and led by the six tunnels: Ofenegg (370 metres or 1,210 feet), Weisswand (1,100 metres or 3,600 feet), Standenhorn (460 metres or 1,510 feet), Glattwand (160 metres or 520 feet), Mühlehorn (300 metres or 980 feet), and Stutz (180 metres or 590 feet).

The highway section has been extended since 1986 with the opening of the Kerenzerberg Tunnel (5.76 kilometres or 3.58 miles), which handles the road to Murg / Sargans. The old six tunnels and the road on the shores of Lake Walen were converted to unidirectional operation and now form the carriageway to Weesen / Zürich.

Zürich Western Bypass[edit]

Since May 4, 2009, with the opening of the highway section between the port Birmensdorf and Zürich, the branch South- the last section of the so-called "Western Bypass" - the A3 motorway is continuous between Basel and Sargans.

With the opening to traffic of the new section on May 4, two existing sections of highway have been renumbered. The leader in the city of Zürich Autobahnast Limmattal - Hardturm (always officially recorded as N1) is now known as A1 (Switzerland) or A1H (Shuttle Hardturm) rather than A3. The leading out of town Autobahnast Wiedikon - Zürich south, the so-called Sihlhochstrasse is referred to as the new A3W (feeder Wiedikon).

Also initiated, with the opening of the Western Bypass, the first stage of the flanking measures pass the residential areas along the former "West tangent" in the city of Zürich. The existing road trains, which were used for urban transit highway connection endpoints and Wiedikon Hardturm, were temporarily contracted on May 2, each for one traffic lane in each direction. In the following months until the summer of 2010,[1] dismantling will continue of the "temporary" transit routes to district roads (West Street and Sihlfeldstrasse) and urban main roads (Seebahnstrasse und Schimmelstrasse)). In addition to various structural measures that are placed on the axis of incidence via Wollishofen and Albisrieden, additional traffic lights are used to regulate traffic flow in the metering equipment and make the side-traffic into the residential neighborhoods unattractive.

Junction list[edit]

A 35 France
AB-Maut-Grenze.svg Border Basel/Saint-Louis-Motorway
AB-AS.svg (1) Euroairport
AB-AS.svg (2) Basel Kannenfeld
AB-Tunnel.svg St. Johann (650 m)
AB-AS.svg (3) Basel St. Johann
AB-Brücke.svg Dreirosenbrücke
AB-AS.svg (4) Basel Klybeck
AB-Tunnel.svg Horburg (1090 m)
AB-AS.svg (5) Basel Nord / Kleinhüningen
AB-Vzw.svg (5) Motorway Fork Basel Wiese A 1
AB-Tunnel.svg Schwarzwald (560 m)
AB-AS.svg (6) Basel Badischer Bahnhof
AB-Brücke.svg Schwarzwaldbrücke
AB-AS.svg (7) Basel Wettstein
AB-AS.svg (8) Basel Ost / Breite
AB-Vzw.svg AB-AS.svg (9) Basel Süd / City
AB-Tunnel.svg Pratteln (900 m)
AB-Vzw.svg (10) Motorway Fork Hagnau (J18)
AB-AS.svg (10) Basel St. Jakob
AB-Tunnel.svg Schweizerhalle
AB-AS.svg (11) Pratteln
AB-Tank.svg AB-Rast.svg Pratteln
AB-AS.svg (12) Liestal
AB-Vzw.svg (13) Motorway Fork Augst A 1
AB-Vzw.svg AB-AS.svg (14) Motorway Fork Rheinfelden A 861
AB-AS.svg (15) Rheinfelden Ost
AB-AS.svg (16) Eiken
AB-AS.svg (17) Frick
AB-AS.svg (18) Effingen
AB-Tunnel.svg Bözberg (3700 m)
AB-Tunnel.svg Schinznacherfeld (450 m)
AB-Tunnel.svg Habsburg (1540 m)
AB-AS.svg (19) Brugg
AB-Vzw.svg (20) Motorway Fork Birrfeld A 1
AB-AS.svg (21) Baden West
AB-Tunnel.svg Baregg (1080 m)
AB-AS.svg (22) Neuenhof
AB-Tunnel.svg Neuenhof
AB-AS.svg (23) Wettingen Ost
AB-Tank.svg AB-Rast.svg Würenlos / "Fressbalken"
Zeichen 123 - Baustelle, StVO 1992.svg AB-AS.svg (24) Spreitenbach - geplant
AB-AS.svg (25) Dietikon
AB-Kreuz.svg (26) Motorway Interchange Limmattal
A 1 A 1 A 1
AB-AS.svg (27) Urdorf Nord
AB-Tunnel.svg Niederurdorf/Honeret (450 m)
AB-AS.svg (28) Urdorf Süd
AB-Tunnel.svg Eggrain (480 m)
AB-AS.svg (29) Uitikon
AB-Tunnel.svg Hafnerberg (1385 m)
AB-AS.svg (30) Birmensdorf
AB-Tunnel.svg Aescher (2160 m)
AB-Vzw.svg (31) Motorway Fork Zürich West A 1
AB-Tunnel.svg Uetliberg (4410 m)
AB-Vzw.svg (32) Motorway Fork Zürich Süd A 1
AB-Tunnel.svg Entlisberg (550 m)
AB-AS.svg (33) Zürich Wollishofen
AB-AS.svg (34) Thalwil
AB-AS.svg (35) Horgen
AB-AS.svg (36) Wädenswil
AB-Tank.svg AB-Rast.svg Herrlisberg
AB-AS.svg (37) Richterswil
AB-Tunnel.svg Blatt (510 m)
AB-AS.svg (38) Wollerau
AB-Tank.svg AB-Rast.svg Feusisberg
AB-AS.svg (39) Schindellegi
AB-AS.svg (40) Pfäffikon SZ
AB-Tunnel.svg Altendorf
AB-AS.svg (41) Lachen
AB-Vzw.svg AB-AS.svg   (42) Motorway Fork Reichenburg A 1
AB-AS.svg (43) Bilten
AB-Tank.svg AB-Rast.svg Glarnerland
AB-AS.svg (44) Niederurnen
AB-AS.svg (45) Weesen
AB-Tunnel.svg Kerenzerberg (5760 m)*
AB-AS.svg (46) Mühlehorn
AB-AS.svg (47) Murg
AB-Tunnel.svg Murgwald (1420 m)
AB-Tunnel.svg Quarten (1040 m)
AB-Tunnel.svg Fratten (320 m)
AB-Tunnel.svg Hof (560 m)
AB-Tunnel.svg Raischibe (800 m)
AB-AS.svg (48) Walenstadt
AB-AS.svg (49) Flums
AB-AS.svg (50) Mels/Sargans
AB-Vzw.svg (51)   Motorway Fork Sarganserland A 1

A 1

Branch A3w (A3)
Motorway End
AB-AS.svg (1) Zürich Wiedikon
AB-Brücke.svg Sihlhochstrasse
AB-AS.svg (2) Zürich Brunau
Zeichen 123 - Baustelle, StVO 1992.svg AB-Vzw.svg  (3)    Motorway Fork Zürich Süd A 1

A 1
Branch A1h (A3)
A 1 A 1 A 1

AB-Kreuz.svg (1) Motorway Interchange Limmattal A 1 A 1 A 1
AB-AS.svg (2) Zürich Altstetten
AB-AS.svg    (3)    Hardturm
Motorway End


  1. ^ "Accompanying Measures for the Western Bypass of Zürich Archived September 27, 2011, at the Wayback Machine", City of Zürich, TED.


This article incorporates information from the German Wikipedia.