Drainage in New Orleans

Drainage In New Orleans

Drainage in New Orleans, Louisiana has been a major concern since the founding of the city in the early 18th century, remaining an important factor in the history of New Orleans today. Flooding threatens New Orleans from three sources: the Mississippi River, Lake Pontchartrain, and natural rainfall. Artificial levees have been built to keep out rising river and lake waters but have had the negative effect of keeping rainfall in.

Read more about Drainage In New Orleans:  History, Hurricane Katrina

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Reasons For Artificial Drainage
... Wetland soils may need drainage to be used for agriculture ... of wind powered pumping engines in the 15th century permitted drainage of some of the marginal land, but the final drainage of the lake had to await the design of large, steam powered pumps ... deltas may have seasonally or permanently high water tables and must have drainage improvements if they are to be used for agriculture ...
Issues Associated With Surface Irrigation
... Waterlogging may be counteracted by drainage, tile drainage or watertable control by another form of subsurface drainage ... Deep drainage - Overirrigation may cause water to move below the root zone resulting in rising water tables ... to other irrigation methods (due to the comparatively high leaching fraction), lack of subsurface drainage may restrict the leaching of salts from the soil ...
Siahan Range - Drainage
... The Rakshan tributary of the Mashkel River carries off all the drainage from the southern slopes ...
Drainage In New Orleans - Hurricane Katrina - After Katrina
... An article in the New Orleans Times-Picayune on 30 November 2005 reported that studies showed the 17th Street Canal levee was "destined to fail" as a ... While the majority of the city's drainage pumps were able to be reactivated after the storm, some of the usually reliable pumps failed in 2006 due to corrosion ... installed flood gates at the mouths of the drainage canals at Lake Pontchartrain, to be closed if the lake water level rises ...
List Of Rivers Of The Rocky Mountains
... Gulf of Mexico drainage Rio Grande Missouri River Wind River Yellowstone River Platte River Arkansas River Arctic Ocean drainage Athabasca River Peace River Parsnip ...