File:Cross section of a ground freezing pipe as used in the big dig.gif

Cross_section_of_a_ground_freezing_pipe_as_used_in_the_big_dig.gif (388 × 508 pixels, file size: 74 KB, MIME type: image/gif)

Description Cross section of a ground freezing pipe as used in the big dig.
Date Unknown date
Source http://www.fhwa.dot.gov/bridge/tunnel/pubs/nhi09010/12.cfm
Author US DoT
Permission
(Reusing this file)
Public domain This image is a work of a United States Department of Transportation employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.

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current10:52, 22 July 2014Thumbnail for version as of 10:52, 22 July 2014388 × 508 (74 KB)Geo Swan{{Information |Description=Cross section of a ground freezing pipe as used in the big dig. |Source=http://www.fhwa.dot.gov/bridge/tunnel/pubs/nhi09010/12.cfm |Date=unknown |Author=US DoT |Permission={{PD-USGov-DOT}} |other_versions= }} [[Category:Grou...

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