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6-22-1971 progress in the power house area. In the furthest away penstock one can see one of the spiral cages are made by the Hitachi-American Ltd. The one this way shows the inner case which is 30' across and will have the generator-rotar-pump. The large steel gerders weighing 65 tons each, used over the power house, to form a track for a large gantry crane were the largest ever transported on a Michigan Highway, they arrived on flat cars, made in Muskegon. - LPSC Box slide # 14-251
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