View of the Sauk River dam site after the final blasting in 1921. The Sauk River dam dated back to 1896. This photograph shows the east side of the Rockville Granite Company main plant looking west from across the river.
The construction of the Lake Zumbro Hydroelectric Power Plant dam began in 1917. The structure was designed by noted hydroelectric engineer, Hugh Lincoln Cooper. The dam, completed in 1919, is owned by Rochester Public Utilities. Three men are standing on the rim, looking into the excavation area.
The construction of the Lake Zumbro Hydroelectric Power Plant dam began in 1917. The structure was designed by noted hydroelectric engineer, Hugh Lincoln Cooper. The dam, completed in 1919, is owned by Rochester Public Utilities. Looking toward the east bank, the Power house, with almost three walls completed, is visible in the center.
Fill in the east channel of the Mississippi River just below the Central Avenue Bridge; the dotted line shows the face of a stone wall built on the bank years before.
This picture shows the amount of filling in done by Eastman; the fill extends from the bank on which the rocks are shown over to the extreme right hand side. The materials consisted of loose sans and some mud; rock was piled in later and little rock was used in the lower fill. Also shows Nicollet Island and the Hennepin Avenue bridge.
Looking across the Mississippi River to the gatehouse at the lower dam water power station; the Minneapolis Western railroad bridge is in the background.
Failure at the lower dam shortly after its completion, shows a section that was washed out. A train is running along the bank of the Mississippi River.
View looking upriver toward the lower dam; the gatehouse and lower dam water power station are along the Mississippi River; also includes the Minneapolis Western railroad bridge, Stone Arch Bridge, and Pillsbury A Mill.
Construction at the lower dam area near the gatehouse, shows the retaining wall; the Minneapolis Western railroad bridge and Gasworks are in the background.
View of the lower dam area, shows part of the gatehouse and retaining wall; the Minneapolis Western railroad bridge and Gasworks are in the background.
Construction on the level gates of the lower dam; also shows the lower dam water power station headrace; the Minneapolis Western railroad bridge and Gasworks are in the background.
Construction at the lower dam water power station along the Mississippi River; shows headrace and retaining walls; the Westside Mills are visible in the distance.
View of water rushing through the gates of the lower dam water power station. Also shows the Stone Arch Bridge and the Minneapolis Western railroad bridge.