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Lonquimai Tunnel

Owner:
Client:
Service:
Rehabilitation design
Estimated cost: Commencement:
October 22, 2001
Completion date:
October 22, 2003
Location:
Temuco
Chile
Technical data:

The 4500 m (14,760 ft) long Lonquimai Tunnel is a one lane, concrete lined road tunnel. The rehabilitation design foresees to line 3500 m (11,500 ft) of the tunnel with a flexible waterproofing membrane protected by a 5 cm (2 inch) thick shotcrete shell and the installation of a new drainage system.

Geology description:

Hard rock

Geology types:
Categories:
Bid cost: Final cost:
$1,800,000
Service areas:
Tunnel Portal
Existing Tunnel Condition
Deterioration by Water Inflow