Private company

Sursee–Triengen-Bahn

Logo: Sursee–Triengen-Bahn, Public domain, via Wikimedia Commons3

Railway company in Switzerland

The Sursee-Triengen Railway (German: Sursee-Triengen-Bahn) (ST) is a railway company in Switzerland. It owns a railway line of only 8.9 km between Sursee, where it connects to the SBB-CFF-FFS network, and Triengen. The line was opened on 23 November 1912 with steam traction.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

Sursee-Triengen-Bahn Dampfzug (7.Mai 1988)
Photo: Markus Giger, CC BY-SA 4.0, via Wikimedia Commons5

The Sursee-Triengen Railway (German: Sursee-Triengen-Bahn) (ST) is a railway company in Switzerland. It owns a railway line of only 8.9 km between Sursee, where it connects to the SBB-CFF-FFS network, and Triengen. The line was opened on 23 November 1912 with steam traction. Unlike most other railways in Switzerland, it was never electrified but a small diesel locomotive was purchased in 1965.2

Products and brands

Freight traffic continued and in 1976 a second diesel of SBB Tm IV type arrived. When the nostalgia-boom reached Switzerland, ST gave its steam 8522 engine to the Dampfbahn Bern which gave it an overhaul and used it for some time. Having kept the old passenger coaches, ST began to offer steam train runs. Remarkable thing is that 8522 is one of the two locomotives that were "partly electrified" during World War 2. An electric boiler heating was fitted to save on coal, but when the war was over and supply restarted, pantograph and electric heater were removed.

After the 1999 reform of railway law, SBB Cargo decided to bring freight cars to their destinations in open access. It took over Tm IV 2 from ST. So, the ST of today is an infrastructure and steam train company.

From Wikipedia’s article on Sursee-Triengen Railway, shared under CC BY-SA 4.0.4