203 Kostrzyn - Tczew over the Warta river in Gorzow Wielkopolski in western Poland, in Lubusz Voivodeship.

In the years 1856-1859 a single-track line of Royal-Prussian Eastern Railway was constructed, connecting Berlin and Konigsberg.

In the year 1905-1914 two-track line was built, which led within the city by 1300 m long flyover.

The vaults are supported by reinforced concrete pillars and are facet with brick or plaster.

The entire longest one in Poland and is a unique monument of technology with over regional historical values of architectural space.