Barcelona Metro line 10

Line 10 (La Sagrera - Gorg and ZAL | Riu Vell - Collblanc) is the name of one of the two branches of the Barcelona metro extension line 9, currently under construction and to be operated by TMB.
Overview.
It links the Zona Franca with Badalona, through Barcelona proper, sharing a good deal of the area covered by L9. L9/10 will be the deepest line in the network, and the longest line in Europe. Originally expected to be ready by 2008, ongoing problems with its construction are going to delay its completion until as late as 2013.
List of stations.
Zona Franca area
Central branch, shared with L9
Besòs area