The Wynental and Suhrental Railway (WSB) (, WSB) was a privately owned railway company in the canton of Aargau in Switzerland. It was formed by the merger of the Aarau-Schöftland Railway (, AS) with the Wynental Railway (, WTB) in 1958. It in turn merged with BDWM Transport in 2018 to form Aargau Verkehr (AVA).
The company owned and operated the Menziken–Aarau–Schöftland railway line, a metre gauge railway line from Menziken to Schöftland via Aarau. The line continues to run, under the ownership of Aargau Verkehr.
History
The Wynental Railway
In 1871, several municipalities in the Wynental founded a committee requesting a concession for two railway lines, from Aarau via Oberkulm to Reinach, and from Beinwil am See via Reinach to Menziken. Both were planned as standard gauge lines operated with steam engines. A year later the project was granted by the authorities of the canton Aargau, but was not executed, mainly due to disagreements over the exact line through the narrow valley. Eventually the section between Beinwil am See and Menziken was built and opened in 1883 by the