Project review
Deepwater develops and commissions the first Raparound Pile anodes for the harsh conditions of the Cook Inlet in Alaska
Overview
In 2004, Deepwater Corrosion Services, Inc. was commissioned to develop a pile anode for a pier in the Cook Inlet, Alaska. The Raparound pile anode was developed and commissioned to address the uniquely harsh environment. The wharf itself freezes and thaws each winter, completely encasing the piles in ice.
The retrofit cathodic protection (CP) system consisted of:
• 36 x Raparound Pile Anodes (rated 50 Amperes each)
Installation
Deepwater Corrosion Services, Inc. was commissioned in 2004 to develop a pile anode strong and reliable enough to survive the deep freezes of the Cook Inlet in Alaska. The result was the Raparound pile anode. The Raparound is the only cathodic protection system on the market for such harsh conditions. The photos below were taken after the second winter in service (Feb 2006); not a single failure or low cathodic protection potential reading was found.
Image gallery
The jetty structure during the second winter freeze that the Raparound pile anode had been in service.
A close-up of the Raparound pile anode, completely frozen.
A Raparound after the thaw of the second winter in service..
A Raparound pile anode is completely encased in ice.
The Raparound anode shown after the thaw..
After the thaw, the Raparound anode is still in place and functioning perfectly.
With the thaw complete and the tide down, we can see the entire structure of the pile anode.