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    Safety Blocks: A Vital Tool in Lock Chambers [Image 2 of 2]

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    Safety Blocks: A Vital Tool in Lock Chambers

    ROCK ISLAND ARSENAL, ILLINOIS, UNITED STATES

    02.24.2026

    Photo by Frances Candelaria 

    U.S. Army Corps of Engineers, Rock Island District

    Despite looking like an ordinary cement block, these aluminum crush blocks are rigid, watertight, and built to save a life.

    IMAGE INFO

    Date Taken: 02.24.2026
    Date Posted: 03.03.2026 12:06
    Photo ID: 9546255
    VIRIN: 260224-A-IP039-4027
    Resolution: 5892x3892
    Size: 3.12 MB
    Location: ROCK ISLAND ARSENAL, ILLINOIS, US

    Web Views: 0
    Downloads: 1

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