%I Obras %X During the years 2001 to 2007 it has been constructed in Spain the new railway line of high speed (L. H. S.)that connects Madrid with Valladolid with a length of 179.6 kilometres. %A Carlos Jurado CabaƱes %C Philadelphia (USA) %P 405-406 %B Proceedings of 5th International Conference on Bridge Maintenace, Safety and Management IABMAS %D 2011 %L upm19328 %T Bridges E-2 and E-3 in the new railway to the Northwest of Spain