Differences Between Canadian, US GPS Systems Led to Pipe Damage
Canadian officials have confirmed that differences between GPS systems in the U.S. and Canada were behind the international bridge construction error earlier this summer that severed a municipal wastewater discharge pipe. The GPS coordinate system upon which surveys are typically based is different in the U.S. than in Canada, according to Judy Cole, spokeswoman for the New Brunswick Department of Transportation. The two systems can be reconciled through a mathematical adjustment, she said, and on the international bridge project, most of the survey was from the New Brunswick side, with some from the Maine side of the border.
Read more via the Bangor Daily News