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Photograph

Northeast View of Interior of Power House Coffer Dam

Date: 09 30 1912
Description: Pile drivers working within the confines of the coffer dam. Men are on the high trestle constructing chutes for pouring concrete.
Photograph

Men Working on Concrete Forms

Date: 1914
Description: A group of workmen posing while working on concrete forms at the Prairie du Sac dam site. Their position high above the water level affords an expansive up...

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