Skip to main content

New Chile-Argentina tunnel project to open for bids

The bidding process for the Agua Negra Tunnel project that will link Chile with Argentina looks set to commence in July or August 2016. The bidding is being organised jointly by the governments of both Chile and Argentina. One source of funding for the project is also now secured, with a loan of US$1.5 billion being provided by the Inter-American Development Bank (IADB). In addition the IADB has also approved $20 million in funding for Chile and Argentina to finance the project's environmental impact studie
April 19, 2016 Read time: 2 mins
The bidding process for the Agua Negra Tunnel project that will link Chile with Argentina looks set to commence in July or August 2016. The bidding is being organised jointly by the governments of both Chile and Argentina. One source of funding for the project is also now secured, with a loan of US$1.5 billion being provided by the Inter-American Development Bank (IADB). In addition the IADB has also approved $20 million in funding for Chile and Argentina to finance the project's environmental impact studies. The tunnel will measure close to 14km once complete.

The project will be challenging as the tunnel will be built at a fairly high altitude. Chilean engineers in particular are experienced with tunnelling projects, although the competence of the rock conditions have not so far been revealed. Weather conditions can be tough in the area around the two planned portal sites.

However despite the challenges, this new route is much needed. It will improve transport connections considerably as the two existing routes are both subject to closures in bad weather and one in particular, a high mountain pass, is also unsuited to heavy vehicles.

Related Content

  • Chile-Argentina tunnelling projects planned
    April 7, 2021
    New tunnelling projects will link Chile and Argentina.
  • Additional Argentina-Chile tunnel project proposed
    January 9, 2015
    An agreement has been reached between Chile and Argentina over a long discussed tunnel project. The proposed tunnel would stretch 11.5km and connect Argentina’s Mendoza Province with Chile’s Region VI, with the project having first been mooted as far back as 1992. The cost of the proposed Paso Las Lenas Tunnel has yet to be revealed although the projected route through the Andes Mountains has been announced. The tunnel portals will be some 2,050m above sea level and the project will include the construction
  • Progress with Agua Negra tunnel connecting Argentina and Chile
    October 11, 2016
    Discussions between Argentina and Chile over the new Agua Negra tunnel to connect the two countries are proving fruitful. A bi-national commission is overseeing the project and assessing bids, with the construction work expected to cost in the region of US$1.5 billion. Technical proposals will have to be submitted by February 2017, with economic bids made by May 2017. The winner of the tender could be announced in early 2018, with the first excavation work then commencing in late 2018 or early 2019. This wi
  • Delay possible for Chile-Argentina tunnel project
    May 10, 2018
    Delays may be a possibility for the construction of the Agua Negra Tunnel, which will run through the Andes mountain range and connect Argentina and Chile. The tendering process is being held back while further geological studies are carried out. An analysis of the initial geological work carried out so far for the project has highlighted a number of discrepancies with the information gathered. It is known that there are three main fault lines cutting across the intended tunnel route however. The tunnel