Jubilee Annals of the Lake Superior Ship Canal; The World's Greatest Mechanical Waterway

Jubilee Annals of the Lake Superior Ship Canal; The World's Greatest Mechanical Waterway

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1906 edition. Excerpt: ...methods the colonel took a long vacation, but by consent retained exclusive charge of preparing the lock chamber floors. The fastenings for these proved a dismal failure and a plan of the agent's for the same purpose was substituted with entire success. The colonel had planned to make his mark in building the coffer dam at the west end of the canal to restrain Lake Superior while full depth in the prism was being excavated. Its site was prepared early in the year with the understanding that he was to have sole charge of its installation, and his corps of assistants were detailed to assist in its progress. Before it was completed the colonel died in Detroit, but his assistants continued the work. Special material was hauled from a long distance to render it waterproof and no expense spared to perfect the plan. Work on the canal progressed until its use became necessary. Then it was tested, but failed to stand the ultimate pressure and collapsed. It was repaired under direction of Major Glenn, the colonel's first assistant, but again on trial it was wrecked. For the third time the same result occurred and a fearful disaster in having Lake Superior pour through the unfinished canal and locks was barely averted. The situation was becoming critical by delay of the work late in the season. The directors became alarmed and the president called on them to meet him at the Sault. A conference with the government engineers was held when the latter said that in pursuance of previous agreement they had been in exclusive charge of the dam, but were ready to confess that it was beyond their ability to make it equal to the trial tests, the difficulty being that the water under pressure forced channels under the uneven base and lifted the frame. They had...show more

Product details

  • Paperback | 76 pages
  • 189 x 246 x 4mm | 154g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236972996
  • 9781236972996