Expansion work

As part of the expansion of the district heating and cooling network in the municipality of Vaduz, Liechtenstein Wärme will construct the necessary pipelines in Herrengasse in 2024. In order to exploit synergies, the municipality of Vaduz and Liechtensteinische Kraftwerke will also renew their pipelines in this context. At the same time, the Principality of Liechtenstein will renovate the main road and construct new verges and surfacing. This coordinated approach will reduce the construction time to a minimum and this important road link for the Principality of Liechtenstein can then be used again for a long time without any major structural obstructions.

In the course of the construction work, the following construction measures will be carried out in detail:

• District heating and district cooling lines: Liechtenstein Wärme will extend its district heating and district cooling network along the entire length of Herrengasse, i.e. from the turn-off to Hintergass to the Adler traffic circle. The gas pipes will also be laid at the same time.
• Service lines: The municipality of Vaduz will rebuild the sewage and water main lines as well as all property connections along the entire section.
• Electricity and communication lines: As part of the construction work, Liechtensteinische Kraftwerke will optimize and expand its grid infrastructure. This concerns the expansion of the existing power lines on the one hand and the optimization of the communications infrastructure on the other. The street lighting will also be completely renewed. Where possible, the pendant lights will be replaced by free-standing candelabras with LED lights.
• Road construction: The Principality of Liechtenstein will renew the road infrastructure, kerbs, road drainage and surfacing along the entire project perimeter from Hintergass to Adler.

Traffic regime during the construction phase

Herrengasse is a highly frequented country road. For this reason, the construction period should be kept as short as possible. Accordingly, the construction site from the Adler traffic circle and Hintergasse will be tackled by two groups at the same time. Where appropriate and necessary, the work will be carried out from 6 am to 10 pm. Road crossings will be carried out at night. During the construction period, it must be ensured that private motorized traffic, public transport, pedestrians and cyclists can continue to use the road.

To ensure this, traffic will be routed as follows:

• Motorized private traffic: Traffic in the direction of Schaan will be routed through the construction site in one lane. Traffic in the direction of Triesen will be routed in one lane via the Lochgass - Rheindamm - Rheinstrasse - Zollstrasse axis. This means that the Rheindamm and Lochgass will be one lane southbound during the construction work. Heavy traffic and tourist buses will be diverted via the A 13 highway.
• Public transport: Bus traffic in the direction of Schaan will be routed through the construction site in one lane, just like motorized traffic. Public bus traffic in the direction of Triesen will be diverted via Egertastrasse. Egertastrasse will also be one-way traffic during the construction period and is reserved for residents and public transport.
• Pedestrian and bicycle traffic: During the construction period, pedestrian and bicycle traffic will be secured locally or diverted on a small scale. The signalization on site must be observed. Pedestrian and cycle traffic in the Rheindamm area will be routed via the Binnendamm and Haberfeldweg.

Schedule

From Tuesday, 4.2.2025, one lane in Herrengasse will have to be closed again for the paving and surfacing work as well as for the completion work on Herrengasse and the bypass routes will have to be reactivated. If the work can be carried out as planned, the construction work is expected to be completed by the end of May 2025.

The Principality of Liechtenstein, the Municipality of Vaduz, Liechtenstein Wärme and Liechtensteinische Kraftwerke would like to thank all road users and local residents for their understanding and patience during the construction work.