The Maestri Bridge (originally known as the Pontchartrain Bridge and later as the Watson-Williams Pontchartrain Bridge and the Five Mile Bridge) carries U.S. Route 11 (US 11) across Lake Pontchartrain between New Orleans and Slidell, Louisiana. The bridge opened on February 18, 1928 as the first permanent crossing of Lake Pontchartrain. The 4.78-mile (7.69 km) bridge was the longest concrete bridge in the world upon completion. The bridge is 35 feet (11 m) wide and has two bascule-type draw spans for passing vessels and barges.