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Upper Peninsula Regional Digitization Center

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    • Tower caisson

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • Photo shows the cutting edge of the tower caisson No. 19 during fabrication at Alpena, MI. Designed to work like a cookie cutter this caisson is filled with aggregate in the double wall area which acts as weight to drive it through the...
    • DSS&A railway depot

    • Railroad stations ; Duluth, South Shore, and Atlantic Railway Company


    • D.S.S. & A. RAILWAY DEPOT


      WEEKLY MINING JOURNAL
      May 11, 1901 P. 1 C.1

      NEW DEPOT ASSURED, SOUTH SHORE ROAD WILL ERECT IT ON FRONT STREET
      PLANS WILL BE HERE SHORTLY, CONSIDERABLE GRADING ON THE SITE COMPLETED
      THIS...
    • Concrete at the anchor pier

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • Concrete is placed in the lower areas of the anchor piers using tremmies (elephant trunk). This is a hopper/funnel device with a hose attached used to place materials where desired by gravity. Once these areas had served their purpose they were...
    • Roadway progress

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • This photo shows the components for the roadway being worked on. Shown here are the center mall (median), two feet wide & four inches high. The center driving lane of open grid, eleven feet wide. The outer lanes are of open mesh, twelve feet...
    • Tower caisson move

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • Getting the caisson No. 19 section out of the assembly area and into the lake went much better than it did for No. 20. No. 20's hole was filled in. No. 19 was jacked up, placed on skids and in four hours was in the place where No. 19 had been...
    • Tower caisson

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • Construction of the first section of a tower caisson. Note the wedge shaped cutting edge. These sections were fabricated in Gary, Indiana and shipped to Rockport (Alpena), MI by barge where they were assembled by Wiltse Brothers Shipyard. This...
    • Tower caisson

    • Mackinac Bridge (Mich) ; Bridges -- Design and construction
    • Adding the next double walled steel ring. As rings were added the space between the two walls was filled with aggregate and the center was dredged. This action caused the caisson to cut its way through the overburden and eventually reach...
    • Goes to the Lake Erie System

    • Railroads ; Duluth, South Shore, and Atlantic Railway Company
    • Source: The Mining Journal
      Marquette, Mi.
      December 31, 1892 Saturday

      Goes to the Lake Erie System

      Mr. C. E. Lytle, who has filled the position of the Chief Dispatcher and Trainmaster of the DSS&A since a short time after the...
    • Business opening up

    • Railroads ; Duluth, South Shore, and Atlantic Railway Company
    • Source: The Mining Journal
      Marquette, Mi.
      April 16, 1892

      Business Opening UP

      The big Dead River mill will begin cutting today for the season of 1892 just to get the machinery limbered up and everything in apple pie order for...
    • For the first time in three years

    • Railroads ; Duluth, South Shore, and Atlantic Railway Company
    • Source: Newberry News
      Newberry, L. S., Mi.
      Friday, December 19, 1890

      For the first time in three years the writer visited Trout Lake the other week and was agreeably surprised to find the place so much changed for the better. For...
    • Captured by Lewis again

    • Railroads ; Duluth, South Shore, and Atlantic Railway Company
    • Source: The Daily Mining Journal, Marquette, MI
      Saturday, January 2,1891

      Captured by Lewis Again

      The annual news and restaurant privileges over the entire line of the DSS&A have again been secured by J. H. Lewis of this city, after...
    • For the Summit Division

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


    • Source: The Mining Journal
      Marquette, Mi.
      August 20, 1887
      Saturday

      For the Summit Division
      A special train passed through the city at midnight Thursday
      with 200 laborers for F. C. O'Reilly & Co.'s...
    • Yesterday a reporter

    • Railroads ; Duluth, South Shore, and Atlantic Railway Company
    • Source: The Daily Mining Journal
      Marquette, Mi.
      June 7, 1888
      Thursday

      Yesterday a reporter was shown the plans for the new South shore depot at St. Ignace in Superintendent Jarvis's office. The depot will be built on a dock by the...
    • Doughty Dagoes

    • Railroads ; Duluth, South Shore, and Atlantic Railway Company
    • Source: The Daily Mining Journal,
      Marquette, MI
      Friday, August 20. 1888

      PWPL Micro Film Reel No. 33

      Doughty Dagoes

      At Nestoria yesterday 40 or 50 Italians who had been working on the extension, boarded the train for...
    • Larger harbor is needed

    • Railroads ; Duluth, South Shore, and Atlantic Railway Company
    • Source: The Daily Mining Journal,
      Marquette, Mi.
      April 28, 1890
      Monday

      Larger Harbor is Needed

      As year by year and traffic at this port increases the inadequacy of the harbor, becomes more and more apparent. Today, all of...

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