The Metro network project has two main lines:
The metropolitan area of Bilbao has developed in a linear layout, with
the towns of Basauri and Etxebarri as the upper end, a large central body
comprising the city of Bilbao, and two long areas that extend along both
banks of the river.
This way, the final route of the underground has the graphic representation
of a "Y" that, with Basauri as the lower end, runs through Etxebarri, Bolueta,
Santutxu, Casco Viejo, Arenal, Gran Via, Indautxu, San Mames, Olabeaga,
Deusto, Sarriko and San Inazio, with a total of 10.5 kilometres. It's here
where the division of the arms of the "Y" takes place.
The right arm goes along the same route as the previous railway on the right bank, until its end at Plentzia.
The left arm serves the towns on the left bank and passes, underground, through the centre of the main population centres.
1995
On November 11th, the Lehendakari (Regional Prime Minister) José Antonio Ardanza opened 23 stations on Line 1 on the section between Casco Viejo- Plentzia
1996
On June 24th, a new station was opened on Line 1, Gobela, located between Areeta and Neguri. And on November 9th, the lifts at Begoña became operational.
1997
On July 5th, the Santutxu, Basarrate and Bolueta stations were opened to the public, amounting to a total of 27 stations on Line 1.
2002
The first section on Line 2 was opened on 13 April, 2002, providing the underground network with five new stations situated on the left bank of the river: Gurutzeta-Cruces, Ansio, Barakaldo, Bagatza and Urbinaga.
2005
On January 8th, 2005 two new stations were opened: Etxebarri on Line 1 and Sestao on Line 2.
2007
On January 2oth, 2007 two new stations were opened on Line 2: Abatxolo and Portugalete.

