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Date: 1913-05-28 

Description: Workmen on temporary walkways among reinforcing bars on the roof of the power house.

Date: 1925 

Description: View from bluff of Crystal Lake and surrounding rolling hills. There is a dairy farm in the foreground at the bottom of the bluff. Cows are grazing in fiel...

Photograph

Power Dam

Date: 1936 after

Description: Elevated view of the power dam on the Wisconsin River at Prairie du Sac.

Date: 1911-10-18 

Description: Workmen stand on damaged and partly submerged railroad track on the west shore of the Wisconsin River.

Photograph

New Power Dam

Date: 1913 

Description: Elevated view of a power dam on the Wisconsin River under construction. There is a rowboat in the foreground. On the opposite shoreline are trees and bluff...

Date: 1911-10-11 

Description: High water on the Wisconsin River has inundated the coffer dam at the construction site. The narrow gauge railroad (curved line in foreground, right) is n...

Date: 1910-08-11 

Description: The first machinery at work sounding at the site for the power dam. Workmen pose near the carriage-mounted equipment. A horse-drawn wagon is in the backg...

Date: 1911-11-05 

Description: A diver and team working to inspect the coffer dam for underwater damage caused by flooding.

Date: 1912-04-13 

Description: Workmen operate a steam shovel loading gravel into electric rail cars during construction of the power dam.

Photograph

Wagon Bridge

Date:  date unknown

Description: View across water towards a wooden wagon bridge over the Wisconsin River. A farm and tree-covered hills are on the opposite shoreline.

Date: 1912-08-07 

Description: Men excavating within the coffer dam. One man stands on a high piling. Several steam engines at work fill the air with smoke. The high trestle and found...

Date: 1912-01-20 

Description: Two men stand on a rail car on the narrow gauge electric railroad crossing the river at the dam construction site. The portion of track in the background...

Date: 1911-07-01 

Description: A steam-powered centrifugal sand pump at work on the Wisconsin River during the construction of the power dam. Pilings of the coffer dam are visible in th...

Date: 1913-06-13 

Description: Workmen and machinery at the quarry on Blackhawk Bluff. The gravel was used in construction of the power dam.

Date: 1913-03-11 

Description: Workers pose by a piling coated with sand suspended from a crane.

Date: 1960 ca.

Description: Casual portrait of August Derleth sitting behind his typewriter in his office, with Gaylord Nelson sitting on his desk to talk.

Date: 1914-03-11 

Description: Looking east from the lock at the Prairie du Sac dam. Recently completed buttresses are in the foreground, with earlier stages of construction visible, in...

Date: 1912-07-16 

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...

Date: 1913-05-28 

Description: Power dam construction workers pause during a meal in the camp dining room. Oil lamps hang from the ceiling; overhead electric lights are also installed.

Date: 1911 

Description: Newly constructed office building at construction site, with buggy in attached shed.

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