Infraestructures Ferrovià ries de Catalunya (Ifercat), the Catalan public agency for railway management, has launched a tender process for the extension of the electricity network of Barcelona metro line 9 through a concession.

The project involves the design, build, operation and maintenance of the project for a period of 40 years. 

The total project investment is estimated at €120.8 million (US$161.4 million). Construction cost are estimated at about €50 million (US$66.8 million).

Interested parties must submit their proposals on or before 22 September 2014. 

See tender documents (Catalan):

https://contractaciopublica.gencat.cat/ecofin_pscp/AppJava/notice

Construction work is taking place currently on Barcelona metro line 9, which will run from Badalona and Santa Coloma de Gramenet to the Zona Franca district and El Prat International Airport. The line will be one of the longest automated metro lines in Europe, with 47.8 kilometres (29.7 mi), and will have 52 stations.

The project was approved in 2000 but has been challenged by some technical difficulties and some of their sections are pending further geological analysis.