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Upper Peninsula Regional Digitization Center

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  • All fields: coffer
(4 results)



Display: 20

    • Other piers

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • The frame for one of the roadway piers is lowered into place. Sheet piling will be driven in around the frame to make it into a coffer dam. Spud piles were driven into the lake bottom for support.
    • Other piers

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • The frame for one of the roadway piers is lowered into place. Sheet piling will be driven in around the frame to make it into a coffer dam. Spud piles were driven into the lake bottom for support.
    • Cable anchor pier

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • The steel frame for the south anchor pier (No. 18) coffer dam is in place and being extended. This pre-fabricated framework was floated in the site on a barge and lowered by crane into position. Note the hard-hat diver climbing the ladder from...
    • Soo bridge

    • Railroads ; Duluth, South Shore, and Atlantic Railway Company

    • Source: The Mining Journal
      Marquette, Mi.
      April 30, 1887
      Saturday

      The "Soo" Bridge
      The "Soo" bridge is being built by four railroads in conjunction with the GT, CPR, DSS&A and the MSSM&A. The contracts...

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