Guillermo Gaviria Echeverri Tunnel
Detailed designs review and project construction supervision.
It is the longest tunnel in Colombia (9.7 km). Starting from Cañasgordas (Antioquia) in a length approx. of 18.3 km, made up of 973 m of bridges, 4.97 km of open-air roads and 12.3 km of tunnels, of which 9.75 km correspond to the El Toyo tunnel.