The San Cristóbal tunnel is part of a larger 4km-long project linking the business areas of Santiago to the northern suburbs.
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The San Cristóbal tunnels were excavated using drill and blast methods. -
The San Cristóbal tunnels are only in limited use at the current time. -
The tunnel has escape exits and refuges at regular intervals along its length. -
The northern portal of the San Cristóbal tunnels. -
The San Cristóbal tunnel is part of a larger 4km-long project linking the...
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