Innovative Dock Mooring Solutions for a Historically Sensitive Area
Publication: Ports 2022
ABSTRACT
Public access to the USS Arizona Memorial was suspended in May 2018 when the anchoring system of the floating dock failed at the location where visitors disembark from navy-operated ferry boats. A new mooring system was designed to effectively hold the dock in position under varying tide levels while limiting the horizontal movement of the dock. The mooring system uses a series of 12 “helical” galvanized steel piles screwed into the seafloor. The floating concrete dock is attached to the piles with constant tension elastic rubber hawsers, integrated with high-strength synthetic rope. Construction for the repair project consisted of demolition and removal of the existing anchor system, installation of the helical piles and elastic mooring system, and in situ load testing of the helical mooring piles. Construction was completed in three months, and the reopening of Hawaii’s USS Arizona Memorial occurred on September 1, 2019, following a 15-month closure.
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Ports 2022
Pages: 290 - 300
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Published online: Sep 15, 2022
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