Description
With a total length of 327 m and a slope of 3.21%, this tunnel was excavated mainly in rocks from the Cretaceous age, belonging to the sedimentary complex of Quebrada Grande, moderately altered to altered.

Service Provided
Studies and designs for the construction and operation of the vehicular tunnels called “La Estrella”, Los Robles and Los Chorros”, on the final access road to the Main Tunnels of the Línea (Centenario II) Attached works.

Covered Length
1000-5000m.

Execution Time
2013.