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This document discusses the design, installation, and planned removal of a temporary cellular cofferdam constructed for the Willow Island Hydroelectric Project on the Ohio River. A cellular cofferdam made of 62.68 foot diameter steel sheet pile cells averaging 67 feet tall was necessary to excavate 110 feet down for the powerhouse while controlling river water and groundwater. Challenging site conditions including variable bedrock and a known fault required rock anchors and other engineering solutions. Inst

Author

onyejekwe

Language

EN