Steam Tunnels
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Steam Tunnels

Under the streets of downtown Missoula, Montana many utilities and an abandoned steam tunnel system can be found. Prior to the design and construction of a major renovation project on a side street, ECHOTECH mapped the tunnel system and unknown utilities with ground penetrating radar.

This radargram shows an arch-shaped tunnel, several pipes, and fractures in the road base caused by material settling around the tunnel. The large steel steam pipe running inside this two meter tall tunnel can also be distinguished.

 

 

Further to the east, a radargram shows two pipes in a single trench, a reinforced concrete electrical conduit, and the roof structure of a known flat-topped access tunnel.
 

 

Last modified: 04/27/05             Copyright 2003-2005, ECHOTECH GEOPHYSICAL, INC.  All Rights Reserved.                Hit Counter