US Army Corps of Engineers
Jacksonville District Website

The crane operator picks up and rotates the needles toward the needle slots, where they are inserted close enough together that they will seal. Divers are again in the water to help to assure that the needles are placed properly.
The crane operator picks up and rotates the needles toward the needle slots, where they are inserted close enough together that they will seal. Divers are again in the water to help to assure that the needles are placed properly.

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Photo by: Erica Skolte |  VIRIN: 180605-A-ZO284-055.JPG