Pouring concrete coping in Robertson bridge pier. Robertson River Bridge. Original caption: 44-1100: Pouring concrete coping in Robertson bridge pier. All concrete was batched and mixed at central plant, loaded in bottom dump metal hopper and hauled to site with small trucks. Original caption: 44-1101: Robertson River Bridge. State: Alaska.

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Size: 7019px × 5100px
Photo credit: © NB/PR / Alamy / Afripics
License: Licensed
Model Released: No

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