Marine students attending the 8th Engineer Support Battalion Medium Girder Bridge Master’s Course lift a bridge part during a field exercise at Camp Lejeune, , Nov. 18, 2015. The building blocks for the bridge weigh between 400 and 600 pounds. When a bridge is complete, it is capable of holding the weight of an M1 Abrams tank, or approximately 60 tons. ( Marine Corps photo by Cpl. Paul S. Martinez/Released)

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Size: 5760px × 3840px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

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