TransCanada, builder of the Keystone XL pipeline, is taking several precautions in a bid to ensure the integrity of the 1,179-mile-long line, most of which remains to be approved for construction in the U.S, according to this article. The steel pipe, which will be buried, is being coated with an anti-corrosive epoxy, joints and seals are checked multiple times and cathodic protection methods will send electrical current through the pipeline to further counter corrosion.

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