Agua Negra Tunnel
Planned · Argentina and Chile · Last reported Apr 2026
Source: CPG Click Petróleo e Gás
The Agua Negra Tunnel project consists of two parallel tunnels, each 13.9 kilometers long, drilled under the Andes Mountains at an entrance altitude of approximately 4,085 meters on the Argentine side. The project includes a 535-meter ventilation shaft and a corridor, aiming to create a permanent, high-standard, year-round operational connection between Coquimbo, Chile, and the Argentine province
- Status
- Prospective
- Sector
- Tunnel, Oil and Gas, Water Supply and Storage, Seaport
- Location
- Argentina
- Updated
- 22 Jul 2026
- Source
- CPG Click Petróleo e Gás
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Project Information
Participants
| Not available for this record. |
Status
Original status | planned |
Taiyo status | Prospective |
Taiyo last update | 2026-07-22 |
Contact
| Not available for this record. |
Description
Description | The Agua Negra Tunnel project consists of two parallel tunnels, each 13.9 kilometers long, drilled under the Andes Mountains at an entrance altitude of approximately 4,085 meters on the Argentine side. The project includes a 535-meter ventilation shaft and a corridor, aiming to create a permanent, high-standard, year-round operational connection between Coquimbo, Chile, and the Argentine province of San Juan. The estimated cost is approximately US$1.5 billion, with funding planned by the governments of Argentina and Chile and support from the Inter-American Development Bank, which has approved an initial loan of US$280 million. The construction period is estimated between eight and ten years from the start of excavations. The tunnel will overcome seasonal limitations of current Andean passes, reduce logistical costs, and strengthen a corridor key to bringing the Southern Cone closer to the Pacific ports. |
Original sector | Construction |
Budget |
Location
Country | Argentina |
Source
Source | CPG Click Petróleo e Gás |
URL |
More Details
Record type | Project |
Sector | Tunnel, Oil and Gas, Water Supply and Storage, Seaport |
Article published date | 2026-04-28 |
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