The fracas over the bridge has become a glaring symbol souring relations between the U.S. and its second largest trading partner during the second Trump administration.
Opposition MPs in Canada's Parliament have expressed frustration over what they view as a lack of transparency from Carney regarding the finer details of the agreement.
One firm offered six months extra salary if they make a return voyage, which it said would take about a month in total, according to a document seen by Bloomberg.