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Cathodic Protection of Ice Shields on The Confederation Bridge Northumberland Strait Crossing Project

Published: 19980322 by NACE International
Author(s): Sorin Segall
Co-Author(s): Charles Henderson

This paper presents the issues considered during the design of an impressed current type cathodic protection (ICCP) system for corrosion control on the submerged external surfaces of the steel ice shields on the piers of Confederation Bridge. General information and facts are presented on the Confederation Bridge and ice conditions in the Northumberland Strait. The challenges and cathodic protection (CP) system design solutions, associated with providing protection to the underwater CP components against ice damage, are discussed. The ICCP system is described including the different CP equipment arrangements utilized, based on the various pier configurations and construction methods. Results of the system effectiveness are also discussed.

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