Barcelona and Saragossa Railway
The construction of the railway from Barcelona to Zaragoza was initially promoted by the notary José María Planas y Compte.
The Barcelona-Manresa-Cervera-Lérida-Almacellas line or Zaragoza line is a 173.1 km railway line that runs through the interior of Catalonia linking Barcelona with Sabadell, Tarrasa, Manresa, Calaf, Cervera, Tárrega, Mollerusa and Lérida to later continue towards Zaragoza.
This line was built by the Zaragoza to Barcelona Railway Company and in 1861 it reached Zaragoza. The old terminal station in Barcelona of the line from Barcelona to Zaragoza was the Zaragoza station later called Estación del Norte and is currently a bus station. It was not until 1932 that the new branch was built to Plaza de Cataluña and in 1972 to Sants station .
The original rails used in the sections between Barcelona and Manresa were of the ill-fated Barlow type, invented by William Henry Barlow.
See Wikipedia entry for the Barcelona-Manresa-Cervera-Lérida-Zaragoza line[1]
William Humber described and illustrated a lattice girder bridge across the Segre River, designed, constructed and erected by De Bergue and Co of Strangeways Iron Works, Manchester. Description here. Illustrations here.