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Today, a large portion of New Orleans is at or below local mean sea level and evidence suggests that portions of the city may be dropping in elevation due to subsidence. A 2007 study by Tulane and Xavier University suggested that "51% of the contiguous urbanized portions of Orleans, Jefferson, and St. Bernard parishes lie at or above sea level ...
The New Orleans metropolitan area gained 12.5% of move-ins since 2018. [24] As of 2020, Greater New Orleans had a racial makeup of 51% White Americans, 35% Blacks or African Americans, 3% Asians, 2% from two or more races, and 9% Hispanic or Latinos of any race. [24] The area's median age was 39 and the population made up 52% females and 48% males.
The Rigolets is spanned by two bridges. The western terminus of the U.S. Route 90 Rigolets Bridge is located immediately north of Fort Pike. It was damaged by Hurricane Katrina in August 2005, and required major repairs. [7]
The Port of New Orleans is the only deep-water container port in Louisiana. It has an annual capacity of 840,000 TEU, with six gantry cranes to handle 10,000 TEU vessels. Four new 100-foot gauge gantry cranes were ordered spring/summer 2019 and are under construction. There are regular container-on-barge services and on-dock rail access with ...
With the I-10 Twin Span Bridge severely damaged, the causeway was used as a major route for recovery teams staying in lands to the north to get into New Orleans. The causeway reopened first to emergency traffic and then to the general public – with tolls suspended – on September 19, 2005. Tolls were reinstated by mid-October of that year.
Lake Borgne [right center] is southeast of Lake Pontchartrain and east of New Orleans, Louisiana. Coastal erosion has transformed Borgne into a lagoon connecting to the Gulf of Mexico. Early 18th-century maps show Borgne as a true lake, largely separated from the gulf by a considerable extent of wetlands that have since disappeared.
The average elevation of the city is currently between 1 and 2 feet (0.30 and 0.61 m) below sea level, with some portions of the city as high as 20 feet (6 m) at the base of the river levee in Uptown and others as low as 7 feet (2 m) below sea level in the farthest reaches of Eastern New Orleans.
The marshes that ring New Orleans, as well as the land depression of the city itself, originally above sea level, [57] have sunk the quickest. The problem with the wetlands was further worsened by salt water intrusion caused by the canals dug by the oil companies and private individuals in this marshland.