The heavy-duty ropeways for the construction site of the hydropower plant Linth-Limmern in the Glarus Alps (Switzerland) are the biggest in the world. These identical-build ropeways are the lifeblood of the Linthal 2015 construction project and will be dismantled once the construction work has been completed. There are more than ten building and installation sites operating simultaneously on the mega construction site. From the base installation site Tierfehd (altitude 800 m), ropeways provide the only means of reaching the building sites higher up. The installations "Construction Ropeway 1" and "Construction Ropeway 2" have been built specifically for this purpose. The first can transport loads of up to 40 tons (Construction Ropeway 1), the second up to 30 tons (Construction Ropeway 2). In addition, each system has a 40-passenger cabin for transporting personnel. In order to be able to transport four transformers – each weighing 225 tons – to the underground control center, a funicular is to be built and is scheduled for completion in 2012.