Six firms to improve Swiss motorways

Switzerland-based firms Walo Bertschinger AG, Kästli Bau AG, Weibel AG and Implenia – the Niesen venture – will undertake a complete renovation of the N06 motorway between Thun Süd and Spiez cities.

Spiez, Switzerland. An aerial view of Spiez, Switzerland. (Image: Adobe Stock)

Implenia, Walo Bertschinger, Cellere Bau AG and Morant AG – Rose venture – will renovate a passage in the city of St Gallen.

Altogether, the projects total Swiss Franc CHF 200 million (US$230 million). Both contracts were awarded by the Switzerland Federal Roads Office (FEDRO).

Swiss N06 renovation

According to Implenia, the Niesen venture will replace existing concrete roads with a low-noise upgrade.

“The work includes reconfiguring two rest areas, renovating several bridges, erecting noise abatement walls and vehicle restraint systems, as well as building three new road-water treatment systems,” said the company.

Construction is to start in the second quarter of this year and run through the first quarter of 2028.

Implenia noted the project will come with increased safety concerns.

“Work is being carried out in shifts while traffic continues to flow, which presents particular challenges in terms of logistics and site safety,” the company said.

Thun Süd and Spiez are separated by roughly 12km and have a combined population of approximately 60,000.

St Gallen city roadway project

Four firms will also repair and renovate a main roadway in St Gallen. According to Implenia, improvements will be made to four major exits in the city.

“This involves extensive renovations to three tunnels, work to stabilise slopes, repairs to various bridges, structural measures to increase safety, and road construction in St Gallen city centre,” said the company.

St Gallen city runs roughly 11km with two major roadways stretching that distance through the city centre. It has a population near 80,000.

Work should run from 2024 to 2028.

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