DOT (graph description language) DOT is a plain text graph description language. DOT graphs are typically files with the file extension gv or dot. The extension gv is preferred to avoid confusion with the extension dot used by early (pre-2007) versions of Microsoft Word. Various programs can process DOT files.
The Lake Pontchartrain Causeway, or the Causeway, consists of two parallel bridges crossing Lake Pontchartrain in southern Louisiana, United States. The longer of the two bridges is 23.83 miles (38.35 km) long. It is the longest bridge in the world that runs continuously over water.
The Causeway. The Lake Pontchartrain Causeway is the longest highway bridge over water in the entire world, spanning 23.9 miles from Metairie on the South Shore to St. Tammany Parish on the North Shore. The original span opened to the public over 40 years ago in 1956 as a two way, two lane bridge.