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Union River Power House and Dam, Ellsworth, ca. 1920

Union River Power House and Dam, Ellsworth, ca. 1920

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Description

A postcard depicting the Union River Power House and Dam taken from along the eastern bank of the Union River in Ellsworth looking west. The power house and dam were owned by the Bar Harbor and Union River Power Company. The structure measured seventy-two feet in height, five hundred feet in length, and its construction formed Leonard Lake. The dam's construction was ordered on February 10th, 1907 and was completed by the Ambursen Hydraulic Construction Co. of Boston, Massachusetts. Before any concrete could be poured, almost three thousand yards of solid rock had to be removed. The dam is constructed of steel reinforced concrete while the power house is composed of concrete blocks, the roof waterproofed with asphalt and shingled with red Italian tiling. The total construction period lasted five months and five days. The Union River Power House and Dam first went into service to produce hydroelectric power on January 8th, 1908. The power house depicted here took extensive damage and was washed away in the flood of April 29th, 1923. However, repairs were made and the Union River Dam is still in service today (2013), being owned by the Bangor Hydroelectric Company.

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