Date: | 08 19 1915 |
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Description: | Elevated view of the completed power house and dam, looking east at the north, or upstream, side of the structure. On the far shore, the site of the gravel... |
Date: | 07 16 1912 |
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Description: | Workers posing inside the coffer dam. The narrow gauge railroad is behind them. One of the pile drivers is in the background. A bare area on the bluff in t... |
Date: | 06 13 1913 |
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Description: | A view, from the west, of the quarry on Blackhawk Bluff. Gravel from the quarry was used in concrete for the construction of the power plant and dam. |
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