Infrastructuring the Nation. Railways (1850-1900) Railways: lines, bridges and tunnelsLinha do NorteLinha do MinhoLinha do TuaLinha do DouroLinha do LesteLinha da Beira AltaLinha da Beira BaixaLinha do Alentejo Linha da Beira Alta Linha da Beira Alta Location map (inauguration date): Figueira da Foz-Vilar Formoso (1882) The different sections location map: The most important bridges and tunnels location map. Click to learn more about each construction: