No, Lake Pontchartrain is a natural lake. In fact, it is the second largest saltwater lake in the United States. The lake is actually 'brackish'. Brackish water is water that is saltier than fresh water, but not as salty as sea water. Lake Pontchartrain covers an area of 630 square miles (1630 square km) with an average depth of 12 to 14 feet (about 4 meters). Some shipping channels are kept deeper through dredging. It is roughly oval in shape, about 40 miles (64 km) wide and 24 miles (39 km) from south to north.
The lake was created 2,600 to 4,000 years ago as the evolving Mississippi River Delta formed its southern and eastern shorelines with alluvial deposits. Its Native American name was Okwata ("Wide Water"). In 1699, French explorer Pierre Le Moyne d'Iberville renamed it Pontchartrain after Louis Phélypeaux, comte de Pontchartrain.
Hilary
2016-04-08 11:56:16 UTC
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No, because cities, especially large metroplexes like Dallas-Fort Worth, are heat islands that create their own meso- and micro-climates. A man-made lake will increase the humidity and will cool off only the area around the lake. Even a large natural lake like Lake Pontchartrain doesn't cool Greater New Orleans off very much, but being near the lake means there may be a breeze which makes if FEEL cooler, but you have to be pretty close to the lake and and on the lakeside of the levee around the lake, which isn't very high, but it is higher than it was before Katrina's storm surges flooded 82 percent of east bank Orleans parish and 50% or more of east bank Jefferson parish.
2015-08-06 16:24:46 UTC
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RE:
was lake pontchartrain man made?
2010-07-06 10:25:34 UTC
No, but it has been dredged.
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