It is 16 feet over Lake Pontchartrain with real fear emanating from the fact that the causeway takes long to end. Just imagine walking for miles under a very scary situation and still you manage. The bridge starts at Metairie and ends at Mandeville which is a 24 mile distance. It will be a journey you have never gone through in your life and extremely scary. What is scarier is that you will stop seeing the land at around the eight mile point so you will be getting into unchartered waters.
The Qingdao Haiwan Bridge, connecting the city of Qingdao in Eastern China's Shandong province with the suburban Huangdao District across the waters of the northern part of Jiaozhou Bay, is the longest bridge over water. The 42.5 kilometer bridge is more than 4 kilometers longer than its previous record holder - a bridge over water is the Lake Pontchartrain Causeway in Louisiana.