Floating Breakwater Field Experience, West Coast

Abstract
Existing literature on floating breakwaters is lacking field information on the construction and subsequent performance of these structures. This report partially addresses this deficiency by evaluating 11 existing floating breakwaters located in the Pacific Northwest. The breakwaters consist of five concrete caisson units, three Alaskan-catamaran or ladder-type breakwaters constructed of posttensioned concrete segments, one constructed of surplus oil pipeline sections, one Goodyear floating-tire module breakwater, and one with units consisting of four rows of plastic pontoons. The report includes a description of each site and breakwater structure, a discussion of the breakwater's performance based on site inspections and discussions with owners, marina operators, etc., and a set of conclusions for the overall evaluation of the structures.

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