The Navy has countless pontoon floats, buoys, and other steel floating structures moored in marine waters. These serve a variety of purposes and in this service are subject to impact and abrasion damage. Although they are covered with a protective coating before placement into service, this coating is subject to early deterioration both by the service rendered and by the hostile nature of the marine environment. The purpose of this paper is to demonstrate that the underwater portions of steel floating structures and their mooring chains can be protected by a simple cathodic protection system.

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