the tunnel was declared, by OPG A new tunnel announced $1.5 billion tunnel project announced "in-service" the tunnel was declared, by OPG announced “in-service” announced the project complete announced the project complete the tunnel was declared, by OPG announced the project complete $1.5 billion tunnel project announced the tunnel was declared, by OPG March 2013 OPG completed the Niagara tunnel the tunnel was declared, by OPG announced $1.5 billion tunnel project