New Orleans/Lower 9th Ward
The Lower 9th Ward is a section of New Orleans, east of the Bywater neighborhood (from which it is separated by the Industrial Canal), north of the Mississippi River, and west St. Bernard Parish, Louisiana.
This neighborhood of predominantly African-American working-class homeowners became tragically famous when it was devastated by floodwaters with the catastrophic failure of the federal levees during Hurricane Katrina. Levee failures rendered 100% of residential properties uninhabitable in 2005.
Over nine years later, few businesses have reopened, only one of seven public schools has been rebuilt, and only 34% of the population has returned. The sections of the neighborhood most affected by the Industrial Canal levee breach are still either seriously damaged or simply empty lots where rows of houses once stood.
The area on the river side of St. Claude Avenue developed during the great expansion of New Orleans in the 19th century. The land further away from the river contained scattered houses on plots of farmland; much of the area maintained a more "rural" look into the start of the 20th century.
Dredging of the Industrial Canal, a shipping and navigation canal between the Mississippi River and Lake Pontchartrain, was begun on June 6, 1918. It bisected the city's 9th Ward; after the Canal was built people started talking about the two sections as the "Upper 9th Ward" (meaning upriver from the Canal) and "Lower 9th Ward" (meaning downriver from the Canal; contrary to assumptions of people from elsewhere after the Katrina disaster, it has nothing to do with elevation). The Canal led to much more development of the "back" portions of the Ward; many laborers in the port facilities built their houses here.
In the 1940s, musicians in this area created a new musical style that they called "rhythm & blues". Fats Domino became the most famous of these local musicians. Many of his neighbors also made records in the 1940s and '50s, including the bands that accompanied artists from elsewhere, like Little Richard, who came to New Orleans to record their hits. Some music historians argue, that if the origin of rock & roll can be pinned to any one neighborhood, it would have to be the Lower 9th Ward.
Hurricane Betsy struck Louisiana in 1965. The new MRGO Canal channeled in storm surge from the Gulf of Mexico into the Lower 9th Ward and neighboring Saint Bernard Parish, flooding the majority of it.
The Lower 9th Ward declined in the last quarter of the 20th century, as the port facilities replaced many laborers with automation. Poverty, drug abuse, and related crime grew in the neighborhood. Still, many locals were proud of the Lower 9th Ward for its rich traditions and high rate of Black home ownership.
In August 2005, Hurricane Katrina struck Louisiana. The levee and floodwall system built after Hurricane Betsy to prevent a repeat of the 1965 disaster quickly crumbled—investigations after the fact showed mistakes in the designs (though more than a few locals will say they suspect deliberate sabotage to destroy the predominantly Black neighborhood). Flooding was much worse than in Betsy, and areas that remained high and dry in 1965 found themselves submerged by flood waters. Collapsing floodwalls unleashed walls of water which bulldozed blocks full of homes into splinters, killing many. Most of the Federal responders were housed in the Lower 9th's Jackson Barracks; when the wall of water came they could do little more than struggle to save themselves.
Similar tales of disaster in 2005 could be told about many other neighborhoods in Greater New Orleans: black, white, and mixed; poor, middle-class, and rich. But the Lower 9th became emblematic of the destruction. Most of the area was so devastated it remained barricaded off when other sections of the city were first reopened. Drinkable running water was restored to the first New Orleans neighborhoods in October of 2005; it did not come to the entire Lower 9th until October of 2006 (Holy Cross had drinkable water in May of 2006).
In 2010 the population was about 1/6 of what it had been before the disaster. While it has continued to grow, the process is still slow.
The two main roadways are Claiborne Avenue and St. Claude Avenue, both of which have bridges over the Industrial Canal connecting them to the Bywater neighborhood and the rest of New Orleans. Heading further southeast are St. Bernard Parish and Chalmette. Car is by far the most practical way to visit, but you can also take Bus 88, St Claude-Delery: you can catch this bus on any corner of St Claude; it runs along St Claude and Rampart through Marigny, French Quarter, and the CBD to the west, the Lower 9th Ward and Arabi in the east. Tours are available on an individual basis through local rebuild nonprofit lowernine.org (call 504.278.1240 to schedule).
Scenes of devastation. Those who wish to see the worst of the destruction can drive around pretty much anywhere north of Claiborne Avenue, but "ground zero" is along Jourdan Avenue north of Claiborne, the site of the major levee breaches. The levees and floodwalls have been rebuilt, the giant barge which landed in the neighborhood has been dismantled, thousands of truckloads of debris have been hauled away, and the vast majority of the thousands of the smashed houses demolished — but the scope of the destruction is still astonishing.
While at first some returned locals resented the thought of being peered at by tourists, at least as many will say the whole world needs to see what happened here and be aware of these Americans' continuing struggle to reclaim their lives. With time the second view has largely prevailed. If you decide to visit the Lower 9th, do so with respect. If your life is better than that of the people living here, make a donation to the Common Ground Collective "Blue House" neighborhood center at 1700 Deslonde St  or to lowernine.org at 6018 El Dorado Street 
"Official" tours are readily available for booking at your hotel downtown, but you are likely to have a much better and less invasive experience off those awkward big tour buses and in your own car (or a privately arranged car). A hotel would certainly be able to get you a local tour guide to come along for a ride, or you could just start asking locals questions.
Eat and Drink
Both eateries and bars are scarce in the Lower 9th Ward, although no longer absent. For variety can head west across the bridge to the Bywater for a wide variety of food and drink. Alternatively, head further down river to Chalmette.
Accommodations in the Lower 9th are available only for volunteers, but they are actually quite nice. Both short term and long term volunteers stay at one of two buildings run by Common Ground Relief, 1800 Deslonde St, ☎ +1 504 312-1729, , which has volunteer forms available on its website. lowernine.org also provides volunteer housing, and more information about volunteering there can be found at 
The Lower 9th Ward is not one of the highest crime areas of the city. The area north of Claiborne is not really a high anything area, except maybe weeds and waterfowl, as there are few people living in this devastated neighborhood post-Katrina. Still, it's best to confine your visits to daylight unless you have a specific night-time place or event you're headed to. If taking photos, don't take them of people without asking their permission first.
The Lower 9th Ward Branch of New Orleans Public Library is at 1611 Caffin Avenue at the corner of Claiborne Avenue; the building also houses the Martin Luther King School.
The closest fully functioning neighborhood with places to eat and drink is the Bywater, just west across the St. Claude Avenue Bridge. Saint Bernard Parish is to the east along Saint Claude or Claiborne Avenues.
The Lower 9th has received far more attention than the rest of the city and surrounding areas for being the worst hit, and therefore has had the biggest volunteer effort. In some ways, this has left it looking a bit better than worse off neighbors, which have yet to be visited by Brad Pitt with hammer and plywood in hand. Arabi is just across the city line to the east, and remains largely destroyed, along with much of the rest of Saint Bernard Parish. Just beyond Arabi, Chalmette is functioning, but a drive through many residential sections will show vacant lots and boarded houses sometimes more numerous than those rebuilt and reoccupied. For that matter, huge sections of New Orleans such as Lakeview, Gentilly and Eastern New Orleans continue to struggle. If you truly want to understand what happened in this city, you should make a point to see what happened beyond this one small section.