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Description: A view through the runway (tunnel) cast into the concrete structure of the power dam at Prairie du Sac.
Description: Workers pose 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...
Description: An overview of the power dam construction site from the west, showing the elevated trestle, coffer dam, and steam pile drivers. The concrete plant is visi...
Description: Forms have been removed from the first concrete poured for the power house in the northeast corner of the coffer dam. Men pour concrete from rail cars on...
Description: Men stand in the completed draft tubes after removal of the steel forms.
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.
Description: Newly construced kitchen and dining rooms at the construction camp for the dam on the Wisconsin River. The kitchen building has three ventilators on the r...
Description: Workers pause while installing a maze of conduit for the switchboard in the power house. The construction camp is to the left.
Description: Construction workers pose during construction of the main office at the Wisconsin River dam site.
Description: Wooden forms are in place for construction of the walls of the lock at the Prairie du Sac dam. The newly constructed power house is on the left.
Description: Workers use a rail car mounted crane to load pilings onto a barge. Bluffs are visible in the distance.
Description: Workmen pose during erection of the draft tubes for the power house at the Prairie du Sac dam.
Description: View within the coffer dam showing four steel draft tubes; wooden supports are visible inside one of the tubes.
Description: A view, looking east, of the wreckage of the high trestle caused by flooding and ice. The concrete plant is visible on the far bank.
Description: An overview of the power dam construction site on the Wisconsin River from the west shore. The outline of the coffer dam is easily seen. Three steam-powe...
Description: Workmen pose on and in front of the steel draft tubes. The gate guides are visible on the right.
Date: 1915 ca.
Description: A man stands near the generators inside the power house at the Prairie du Sac dam. The base of the generators is marked with the name of the manufacturer,...
Description: High water has scattered timber pilings through the construction camp. The office is on the right; the smoke stacks of the temporary power plant are visib...
Description: Men work on the concrete chutes and elevated trestle. Iron reinforcing bars protrude from the forms.
Date: 1913 ca.
Description: Looking across water and through the locks to a shoreline with a large hill in the background. A building is on the left, a wall and pilings are in the wat...
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