Torne River Railway Bridge

The Torne River Railway Bridge is a dual gauge railway bridge between Haparanda, Sweden and Tornio, Finland; the 1524mm rails used for Finland, the 1435mm rails used for Sweden. A temporary ice river track was built over the Torne River in 1917.The current bridge was opened in 1919 and was the first direct connection between the towns until the road bridge opened in 1939. It was jointly built by the governments of Sweden and Finland, and by the railway. A small aerial lift was built in 1916 over the river to transport mail, because during parts of the year the ice was too strong for boats and too weak or too split up for walking, and this was the main gateway between Russia and Western Europe during World war One. The aerial lift was removed when the railway bridge was operating.

Source: Wikipedia