Line G is a planned addition to the Buenos Aires Underground which has been on the drawing board in numerous forms since the 1930s. After a failed attempt at financing and building the line in 2009, its most recent proposal was put forward in 2015 by the government of Buenos Aires. History The history of Line G dates back to 1930 when the Hispano-Argentine Company for Public Works and Finances (CHADOPyF) was tasked with expanding the network following the construction of Line A by the Anglo-Argentine Tramways Company. The company had been tasked with building four new lines, with Line 3 running from Plaza de Mayo to the intersections of San Martín and Gaona Avenues, the current location of the Sid Campeador monument, which would be built in 1935. By 1932, the original plans had been revised twice and the number of projected lines was reduced to three, with parts of lines 3 and 4 being merged into a new Line 3 (today known as Line D), and the western section of Line 3 being left on the drawing board, later to re-emerge as the planned Line G. Law 670 On 8 November 2001, the government of the City of Buenos Aires established a law outlining the future expansion of the Underground network, which included three new lines; F, G and I, as well measures for the advancement of Line H. Line G would start at Retiro Mitre railway station and then head west, terminating at the Cid Campeador monument, near Parque Centenario in the Caballito neighborhood. The Retiro - Cid Campeador line, which was to stretch 7.3km and have 11 station, was then planned as follows: Retiro Cerrito Uruguay Callao Pueyrredón Jean Juares Mario Bravo Gascón Estado de Israel Parque Centenario Cid Campeador By December 2009, the City of Buenos Aires had made significant advances in negotiating financing and construction equipment from Exim Bank of China and China Railway Group Limited (CREC). The construction of the line was to be done with tunnel boring machines, allowing for the tunnel to advance an average of 15 metres per day and the CREC would be in charge of all aspects of construction and sourcing of materials as well as rolling stock. By early 2011, it was announced that the government had obtained financing for $1.4 billion for the line and was to begin construction in 2012, concluding in 2016. The line