Date: | 11 21 1912 |
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Description: | Elevated view within the coffer dam showing four steel draft tubes; wooden supports are visible inside one of the tubes. |
Date: | 11 21 1912 |
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Description: | Workmen posing on and in front of the steel draft tubes. The gate guides are visible on the right. |
Date: | 11 21 1912 |
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Description: | Elevated view of the progress of construction within the coffer dam showing the gate guides and draft tubes in place. Concrete forms and chutes, as well as... |
Date: | 11 21 1912 |
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Description: | Two workmen standing in the outlet of a steel draft tube in the power house, while other men are working above it. Cars are moving along the elevated trest... |
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