[1] Presently, the Langwieser Viaduct is owned and used by the Rhaetian Railway; it remains the biggest bridge on the company's network.

[2] It has also been listed as a Swiss heritage site of national significance in light of its status as a pioneering reinforced concrete structure.

While most of the line's bridges are composed from locally-source stone, a decision that had been a specified preference of the route's chief engineer Gustav Bener, this was not possible at the location of the Langwieser Viaduct.

[6] The plans for the Langwieser Viaduct were largely the work of Hermann Schürch, while the chief engineer and the building contractor for its construction was Eduard Züblin.

The falsework, which used 800 cubic metres of wood, was regarded as an achievement in itself, produced by the carpenter Richard Coray of Trin.

[1] Stone was not a realistic choice due to unfavourable local geology, the foundations for a heavy structure were impractical.