Sunday, January 31, 2010

Trench Box


AKA:  Trench Shield, Trench Shore

Location: Johnson's Corner, Delaware

Additional Information:  With the help of a Cat 345B excavator, workers laying sewer pipe, are about to lower a steel trench box into the ground. Trench boxes are used to temporarily shore the sides of excavations so contractors can perform their duties safely, without fear of collapse. 

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