Starting end-1998 in two stages of 5 km to connect Retiro railway station with Nueva Pompeya. Will be known as H-line with 12 stations planned enroute and four interchanges with other lines. Second stage will start 2001 for completion 2005.
NATM construction, value $140 million. Operation by concession. Consultants Geoconsult, Salzburg, Austria +43 662 6596510, E-mail office@gcs.co.at. May 1998.