tunel-agua-negra santiago times
The new Agua Negra tunnel will be 13.9kms long and stand at an altitude of 3,620 to 4,085 meters above sea level, at an estimated cost of US$ 1.5bn
The new Agua Negra tunnel will be 13.9kms long and stand at an altitude of 3,620 to 4,085 meters above sea level, at an estimated cost of US$ 1.5bn
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