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International Database and Gallery of Structures

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Willow Island hydro-electric project in West Virginia

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For the construction of the hydroelectric powerhouse, an approx. 30.5 m deep rock excavation had to be built.
: For the construction of the hydroelectric powerhouse, an approx. 30.5 m deep rock excavation had to be built.

To ensure the stability of the dam during excavation, 28 strand anchors had been installed.

The temporary strand anchors each have 3-12 strands in lengths between 15.8 m (52 ft) and 25 m (82 ft).
: The temporary strand anchors each have 3-12 strands in lengths between 15.8 m (52 ft) and 25 m (82 ft).

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