St. Bernard Parish is a parish in the U.S. state of Louisiana. The parish seat and largest community is Chalmette. The parish was formed in 1807. St. Bernard Parish is part of the New Orleans–Metairie metropolitan statistical area; the parish is located southeast of the city of New Orleans and comprises the Chandeleur Islands and Chandeleur Sound in the east.
Plaquemines Parish is a parish located in the U.S. state of Louisiana. With a population of 23,515 at the 2020 census, the parish seat is Pointe à la Hache and the largest community is Belle Chasse. The parish was formed in 1807.
Arabi is a census-designated place (CDP) in St. Bernard Parish, Louisiana, United States. It lies on the eastern bank of the Mississippi River, between the Lower 9th Ward of New Orleans and Chalmette within the Greater New Orleans metropolitan area. The population was 4,533 at the 2020 census.
Violet is a census-designated place (CDP) in St. Bernard Parish, Louisiana, United States. The population was 5,758 at the 2020 census. Violet is located on the east bank of the Mississippi River, approximately 7.5 miles (12.1 km) southeast of New Orleans and is part of the New Orleans–Metairie–Kenner metropolitan statistical area.
Lake Pontchartrain is an estuary located in southeastern Louisiana in the United States. It covers an area of 630 square miles (1,600 km2) with an average depth of 12 to 14 feet. Some shipping channels are kept deeper through dredging. It is roughly oval in shape, about 40 miles (64 km) from west to east and 24 miles (39 km) from south to north.
Pointe à la Hache is a census-designated place (CDP) and unincorporated community in Plaquemines Parish, Louisiana, United States. Located on the east bank of the Mississippi River, the village has been the seat for Plaquemines Parish since the formation of the parish. As of the 2020 census, its population was 183, less than half its 1930 population. It suffered severe damage from Hurricane Katrina in 2005 and Tropical Storm Lee in 2011.
The Mississippi River–Gulf Outlet Canal is a 76 mi (122 km) channel constructed by the United States Army Corps of Engineers at the direction of Congress in the mid-20th century that provided a shorter route between the Gulf of Mexico and New Orleans' inner harbor Industrial Canal via the Intracoastal Waterway. In 2005, the MRGO channeled Hurricane Katrina's storm surge into the heart of Greater New Orleans, contributing significantly to the subsequent multiple engineering failures experienced by the region's hurricane protection network. In the aftermath the channel was closed. A permanent storm surge barrier was constructed in the MRGO in 2009, and the channel has been closed to maritime shipping.
The Ninth Ward or 9th Ward is a distinctive region of New Orleans, Louisiana, which is located in the easternmost downriver portion of the city. It is geographically the largest of the 17 Wards of New Orleans. On the south, the Ninth Ward is bounded by the Mississippi River. On the western or "upriver" side, the Ninth Ward is bounded by Franklin Avenue, then Almonaster Avenue, then People's Avenue. From the north end of People's Avenue the boundary continues on a straight line north to Lake Pontchartrain; this line is the boundary between the Ninth and the city's Eighth Ward. The Lake forms the north and northeastern end of the ward. St. Bernard Parish is the boundary to the southeast, Lake Borgne farther southeast and east, and the end of Orleans Parish to the east at the Rigolets.
Hurricane Katrina was a devastating Category 5 Atlantic hurricane that caused 1392 fatalities and damage estimated between $97.4 billion to $145.5 billion in late August 2005, particularly in the city of New Orleans and its surrounding area. At the time, it was the costliest tropical cyclone on record, later tied by Hurricane Harvey of 2017. Katrina was the twelfth tropical cyclone, the fifth hurricane, and the third major hurricane of the 2005 Atlantic hurricane season. It was also the fourth-most intense Atlantic hurricane to make landfall in the contiguous United States, gauged by barometric pressure.
The article covers the Hurricane Katrina effects by region, within the United States and Canada. The effects of Hurricane Katrina, in late August 2005, were catastrophic and widespread. It was one of the deadliest natural disasters in U.S. history, leaving at least 1,836 people dead, and a further 135 missing. The storm was large and had an effect on several different areas of North America.
Hurricane preparedness in New Orleans has been an issue since the city's early settlement because of its location.
This article contains a historical timeline of the events of Hurricane Katrina' on August 23–30, 2005 and its aftermath.
The Industrial Canal is a 5.5 mile (9 km) waterway in New Orleans, Louisiana, United States. The waterway's proper name, as used by the U.S. Army Corps of Engineers and on NOAA nautical charts, is Inner Harbor Navigation Canal (IHNC). The more common "Industrial Canal" name is used locally, both by commercial mariners and by landside residents.
Though Hurricane Katrina did not deal the city of New Orleans a direct hit on August 29, 2005, the associated storm surge precipitated catastrophic failures of the levees and flood walls. The Mississippi River Gulf Outlet ("MR-GO") breached its levees in approximately 15 places. The major levee breaches in the city include the 17th Street Canal levee, the London Avenue Canal, and the wide, navigable Industrial Canal, which left approximately 80% of the city flooded.
The Lower Ninth Ward is a neighborhood in the city of New Orleans, Louisiana. As the name implies, it is part of the 9th Ward of New Orleans. The Lower Ninth Ward is often thought of as the entire area within New Orleans downriver of the Industrial Canal; however, the City Planning Commission divides this area into the Lower Ninth Ward and Holy Cross neighborhoods.
On Monday, August 29, 2005, there were over 50 failures of the levees and flood walls protecting New Orleans, Louisiana, and its suburbs following passage of Hurricane Katrina. The failures caused flooding in 80% of New Orleans and all of St. Bernard Parish. In New Orleans alone, 134,000 housing units — 70% of all occupied units — suffered damage from Hurricane Katrina and the subsequent flooding.
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. The central portion of metropolitan New Orleans is fairly unusual in that it is almost completely surrounded by water: Lake Pontchartrain to the north, Lake Borgne to the east, wetlands to the east and west, and the Mississippi River to the south. Half of the land area between these bodies of water is at or below sea level, and no longer has a natural outlet for flowing surface water. As such, virtually all rainfall occurring within this area must be removed through either evapotranspiration or pumping. Thus, flood threats to metropolitan New Orleans include the Mississippi River, Lake Pontchartrain, canals throughout the city, 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, and have failed on numerous occasions.
The New Orleans Hurricane of 1915 was an intense Category 4 hurricane that made landfall near Grand Isle, Louisiana, and the most intense tropical cyclone during the 1915 Atlantic hurricane season. The storm formed in late September when it moved westward and peaked in intensity of 145 mph (233 km/h) to weaken slightly by time of landfall on September 29 with recorded wind speeds of 126 mph (203 km/h) as a strong category 3 Hurricane. The hurricane killed 275 people and caused $13 million in damage.
The Murphy Oil USA refinery spill was an oil spill that resulted from the failure of a storage tank at the Murphy Oil USA petroleum refinery in the residential areas of Chalmette and Meraux, Louisiana, United States, on August 30, 2005, the day after Hurricane Katrina made landfall on the U.S. Gulf Coast.
The effects of Hurricane Isaac in Louisiana were more severe than anywhere in the storm's path, and included $611.8615 million in damages and five total deaths. Forming from a tropical wave in the central Atlantic, Isaac traversed across many of the Lesser and Greater Antilles, before reaching peak intensity with winds of 80 mph (130 km/h) on August 28, 2012 while in the Gulf of Mexico. Nearing the coast of Louisiana, the Category 1 hurricane slowly moved towards the west, making two landfalls in the state with little change of intensity prior to moving inland for a final time. The hurricane weakened and later dissipated on September 1 while over Missouri. Before landfall, Governor Bobby Jindal declared a state of emergency to the state, as well as ordering the mandatory evacuation of 60,000 residents in low-lying areas of Louisiana along the Tangipahoa River in Tangipahoa Parish.
