Lake Pontchartrain Causeway

It consists of two parallel bridges (4 lane) crossing Lake Pontchartrain in Louisiana in US. The bridge is 38.442 km long (38.28 km over water at a stretch), span of 46 m and with a vertical clearance of around 5 m. Opened on August 30, 1956 with a toll of $ 3. Around 43,000 vehicles pass the bridge in a day.