sentences:  The highway along the river was not completed for another 50 years.In the 21st century, shippers have proposed sending loads as wide as both lanes of Route 12 and up to three stories high from the river port at Lewiston to inland destinations, including the Kearl Oil Sands Project in Alberta, Canada.In June 2012, after several groups had filed lawsuits to prevent the shipments, Imperial Oil and Exxon Mobil withdrew their application to use the highway for such large loads.