In April 2011 Mariverdo Ltd presented the private initiative for the reactivation and construction of a railway corridor along the country’s “backbone,” connecting the interior with the Atlantic coast, the Pacific coast and the centre-north with the possibility of reaching the eastern plains. In July 2012, the National Infrastructures Agency (ANI) replied to the Mariverdo application, requesting more information. With the technical assistance of Esteyco, Mariverdo complemented the technical pre-feasibility study for the private initiative with additional studies to respond to the request from the ANI.
Four sections of the initiative were analysed in the review, from the railway, geotechnical, environmental and social points of view.
• La Dorada – Chiriguaná: rehabilitation of the line, operation in narrow gauge and change to standard gauge.
• Chiriguaná – Caribbean: analysis of corridors.
• Central connection, Buenos Aires – La Tebaida: feasibility of the tunnel.
• Granada – La Dorada: environmental and social analysis.
After the analysis a strategy from a technical and economic point of view was proposed for putting it into service in stages based on the gauge, the rail, rolling stock and the trains’ load cycle.