Project Review
Deepwater develops and commissions the first Raparound Pile anodes for the harsh conditions of the Cook Inlet, 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 enough and reliable enough to survive the deep freezes of the Cook Inlet, 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

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 close up of the Raparound pile anode, completely frozen.

Raparound pile anode (aka wraparound pile anode)

A Raparound after the thaw of the second winter in service..

The ROV disconnecting the crane rigging from RetroPod

A Raparound pile anode is completely incased in ice.

A diagram of the VSE, complete with components. Click the picture for an enlarged view.

After the thaw, Raparound anode still in place, still functioning perfectly

After the thaw, Raparound anode still in place, still functioning perfectly.

Raparound pile anode in situ in Alaska

The thaw complete, and the tide down, we can see the entire structure of the pie anode.