CATHODIC PROTECTION SYSTEM FOR FLEET MOORINGS

A cathodic protection system was developed for protecting from corrosion both the underwater portion of a mooring buoy and its ground tackle. The final design of this system protected both buoy and chain for 3-1/2 years, and sufficient zinc appeared to remain for at least another 6-1/2 years of protection. The system performed well on both a sandy and muddy bottom. The zinc anodes used on the ground tackle were specially cast on steel chain links to become an integral part of the chain system. The tight riser-chain secured to the peg-top buoy had the required electrical continuity to permit the necessary flow of current for protection, but it was necessary to use a steel cable woven through the links of each ground leg to achieve electrical continuity there. A cost analysis indicates that use of such a cathodic protection system can result in a considerable reduction in costs associated with maintenance of fleet moorings.

• Supplemental Notes:
  • Rept. No. TR-702, Proj. YF51.543.006.01.007
• Corporate Authors:

  Naval Civil Engineering Laboratory

  Port Hueneme, CA  United States 
• Authors:
  • Drisko, R W
• Publication Date: 1970-11

Media Info

• Pagination: 56 p.

Subject/Index Terms

• TRT Terms: Cathodic protection; Corrosion protection; Mooring buoys; Mooring cables
• Subject Areas: Construction; Marine Transportation;

Filing Info

• Accession Number: 00019464
• Record Type: Publication
• Source Agency: U.S. Army
• Report/Paper Numbers: Tech Rpt
• Files: TRIS
• Created Date: Nov 8 1972 12:00AM