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In the heart of Washington's dangerous, mountainous terrain and under the pressure of impending deadlines, the crew has their work cut out for them as they stabilize the slopes along one of their busiest highways.
First Air Date : Nov 22, 2011
Last Air date : Jan 24, 2012
Episode : 10 Episode
Season : 1 Season
Runtime: 26:14 minutes
Studio: National Geographic
Country:
Crew:
