Line H (Buenos Aires Underground)

Line H is a line of the Buenos Aires Underground. The first phase, between Plaza Once and Caseros, opened 18 October 2007, currently stretches over 8.8 km between Hospitales and Facultad de Derecho stations.[3][4] It is the first entirely new line built in Buenos Aires since the opening of Line E on 20 June 1944.

Line H
TypeRapid transit
SystemBuenos Aires Underground
TerminiFacultad de Derecho
Daily ridership128,000 (2018)[1] 23.68% [2]
Opened18 October 2007
Rolling stock300 Series
Line length8.8-kilometer (5.5 mi)
Track gauge1,435 mm (4 ft 8 12 in)
ElectrificationCatenary 1500 V DC
Route map

Terminal de Ómnibus
Padre Mugica
planned extension
Facultad de Derecho
Las Heras
Santa Fe
Humberto I
Colonia Workshops
Parque Patricios
under construction

According to projections, the line will stretch a total of about 11.85 km and will run from between Retiro to Sáenz once the remaining sections are constructed. It connects the southern part of the city with the north, improving the flow to the centre of the city. It is also designed to serve as a transversal line and provide cross-connections across all radial lines, mainly under the axis of Jujuy and Pueyrredón avenues.

Rolling stock

During its early years, Line H was served by a temporary fleet of refurbished and original vintage Siemens-Schuckert Orenstein & Koppel train sets originally introduced on line C, with electric current supplied by overhead lines. The cars featured 42 seats and 4 doors per side.[5]

As the line was extended and passenger numbers increased, the rolling stock was replaced by new Alsom 300 Series units ordered from that company in 2012 in order to make up the entirety of the Line's rolling stock. The first 6 of the 120 new Alstom cars arrived In August 2015, with the remainder being gradually phased-in since then, as the line has been extended.[6][7][8][9]

Further expansion

An initial extension to Corrientes station was inaugurated on Monday 6 December 2010.[10] The Córdoba and Las Heras stations opened in December 2015 with Santa Fe (which links Line H to Line D) set to open in April 2016. This will also mean that the extension will be inaugurated along with the line's new Alstom Metropolis rolling stock, which arrives in the country before then.[11]

The Facultad de Derecho station (located at the University of Buenos Aires Faculty of Law) was originally intended to be located across the road next to Plaza Francia, however concerns that it would damage the prestigious Recoleta Cemetery necessitated the revisal of these plans and therefore delayed construction of the station, which eventually opened in May 2018.[12] The final stretch to Retiro is not set to open until some time after since its trajectory must also be revised following the relocation of the Plaza Francia station.


2007-10-18Line H was inaugurated between Once and Caseros.
2010-12-06The line is extended northbound from Once to Corrientes.[13]
2011-10-04Parque Patricios station opened.
2012-01Works in the extension towards Plaza Francia (North) and Nueva Pompeya (South) began.
2013-05-27Hospitales station opened.
2015-12-18Las Heras and Cordoba stations opened.
2016-07-12Santa Fe station opened.
2018-05-17Facultad de Derecho station opened.


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