The Blue Water Bridge connects Port Huron, Michigan, with Point Edward, Ontario. Credit: Pure MichiganBy Eric FreedmanThe iconic Blue Water Bridge has received a clean bill of operational health from the Michigan Auditor General’s Office. There were almost 4 million bridge crossings last year. The Blue Water Bridge is the largest generator of toll revenue to the state, taking in $26.4 million in revenue last year. Nationally, the Blue Water Bridge ranked second in U.S.-Canadian cross-border revenue last year, behind the Peace Bridge connecting Buffalo, New York, with Fort Erie, Ontario.