The Mississippi River snakes through the Crescent City of New Orleans, Louisiana in this fantastic satellite image. The large body of water to the city's north is Lake Pontchartrain, bisected by the longest bridge over water in the world, the Lake Pontchartrain Causeway.

Image by Robert Simmon, based on data provided by the Landsat 7 Science Team, courtesy NASA

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    On August 30, 1956, the Lake Pontchartrain Causeway opened across Lake Pontchartrain, Louisiana. The Lake Pontchartrain Causeway is the longest continuous bridge over water in the world.
    The Lake Pontchartrain Causeway links the urban area of New Orleans, Louisiana, with the smaller communities on the north shore of Lake Pontchartrain. The roadway is 38 kilometers (24 miles) long, and supported by 9,500 concrete pilings.
    The Lake Pontchartrain Causeway benefitted residents on both sides of the bridge. People who worked in the city had their commute time reduced drastically. The bridge also increases business for retail stores and restaurants in towns on the north shore by allowing New Orleanians and tourists greater access. 
  • Term Part of Speech Definition Encyclopedic Entry
    benefit Verb

    to be helpful or useful.

    bridge Noun

    structure connecting areas otherwise difficult to travel.

    business Noun

    sale of goods and services, or a place where such sales take place.

    causeway Noun

    elevated road.

    city Noun

    large settlement with a high population density.

    column Noun

    strong, vertical support structure, such as a pillar.

    commute Verb

    to travel to and from specific places on a regular basis, usually for a specific purpose, such as employment.

    concrete Noun

    hard building material made from mixing cement with rock and water.

    continuous Adjective


    drastic Adjective

    severe or extreme.

    lake Noun

    body of water surrounded by land.

    Encyclopedic Entry: lake
    lakebed Noun

    bottom of a lake.

    piling Noun

    structure, usually made of metal or wood, hammered vertically into the ground to serve as a foundation or wall.

    resident Noun

    person who lives in a specific place.

    retail Adjective

    having to do with the sale of finished goods to consumers.

    shore Noun


    tourist Noun

    person who travels for pleasure.

    town Noun

    human settlement larger than a village and smaller than a city.

    urban area Noun

    developed, densely populated area where most inhabitants have nonagricultural jobs.

    Encyclopedic Entry: urban area