The steepest railway line in the Czech Republic, running from Tanvald to Kořenov, is temporarily suspending operations for an extensive renovation project worth over 427 million crowns. The unique rack-and-pinion railway, which has been helping trains climb steep gradients since its construction in 1899-1902, will undergo comprehensive modernization.
While modern trains can manage the challenging 58‰ gradient without assistance, historic locomotives still rely on the distinctive 4.43-kilometer dual-strip Abt rack system. The renovation will include installing a new system with two rack rails, replacing wooden and steel sleepers, and modernizing several stations along the route.
The historical significance of this engineering marvel is evident in its status as a cultural monument, granted by the Czech Ministry of Culture in 1992. The 12-kilometer stretch between Tanvald and Harrachov, affectionately known as “Kořenovská Zubačka,” features five tunnels, with the longest spanning 940 meters.
During the closure, heritage train services will continue to operate between Kořenov and Harrachov, with special runs to Szklarska Poręba planned for July 5-6. Railway enthusiasts can still visit the Rack Railway Museum, Kořenov Engine House, and the local mining railway, which will remain open throughout the renovation.
Regular service and heritage rides are scheduled to resume in autumn, with the first rack locomotive journey planned for November 1st.