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Spillways 101

Once again, the New Orleans region serves another purpose for the middle 2/3 of the United States: to manage the water flowing through the lower part of the Mississippi River, so it does not exceed 1.25 million cubic feet per second in New Orleans, allowing the port to remain active, the population to stay in place and reduces the potential for the loss of property.
The opening was praised during a 10 a.m. news conference by New Orleans Mayor Mitch Landrieu for its role in keeping the city and neighboring areas safe. “What we’re witnessing right now is really an engineering miracle,” Landrieu said. “So many of us for so long wanted to make sure our homes and our lives were protected by creating a levee system. What you’re about to see is a levee system that is managed as a risk reduction (system), making sure we do what we’re supposed to do and when we’re supposed to do it, to protect lives and protect homes.”
The multilayered flood-control system is formally known as The Mississippi River & Tributaries Project. Administered and built by the Mississippi River Commission and the U.S. Army Corps of Engineers, the project was launched after the disastrous Mississippi River Flood of 1927. The project was authorized by Congress in 1928. Before the 1927 flood, levees were the only safeguards used to combat river flooding.
Bonnet Carré Spillway
Studies to determine the best location for a spillway along the lower river had identified one at the site of the 19th century Bonnet Carré Crevasse, about 33 river miles above New Orleans. Between 1849 and 1882, four major crevasses had occurred at this location. In fact, during the flood of 1849, a 7,000-foot-wide crevasse at Bonnet Carré flowed for more than six months .
The Bonnet Carré Spillway consists of two basic components: a control structure along the east bank of the Mississippi River and a floodway that transfers the diverted flood waters to the lake. The spillway was built in response to the Great Mississippi Flood of 1927 that inundated much of the Mississippi River basin.
| Distance above New Orleans | 32.8 river miles |
| Length of Weir Opening | 7,000 feet |
| Number of Bays | 350 |
| Width of Bays | 20 feet |
| Creosote Timbers | 20 per bay |
| Floodway Design Capacity | 250,000 cfs (cubic feet per second) |
| Length | 5.7 miles |
| Width at River | 7,700 feet |
| Width at Lake | 12,400 feet |
| U.S. Lands | 7,623 acres |
| Frequency of Operation (est.) | 10 years |
| Year | Days | Bays Opened | (%) Opened | Ideal flow capacity |
|---|---|---|---|---|
| 1937 | 48 | 285 | 81.4% | 203,571 cu ft/s |
| 1945 | 57 | 350 | 100% | 250,000 cu ft/s |
| 1950 | 38 | 350 | 100% | 250,000 cu ft/s |
| 1973 | 75 | 350 | 100% | 250,000 cu ft/s |
| 1975 | 13 | 225 | 64.3% | 160,714 cu ft/s |
| 1979 | 45 | 350 | 100% | 250,000 cu ft/s |
| 1983 | 35 | 350 | 100% | 250,000 cu ft/s |
| 1997 | 31 | 298 | 85.1% | 212,857 cu ft/s |
| 2008 | 31 | 160 | 45.7% | 114,286 cu ft/s |
| 2011 | 42 | 330 | 94.3% | 235,714 cu ft/s |
Corps New Orleans District commander Col. Richard Hansen said Tuesday that he expects all 350 bays of the spillway’s weir to be opened. Each bay has 20 creosoted timber “needles” that must be pulled by cranes moving on a rail atop the weir.
There are two graveyards located in the spillway. The cemeteries containing the remains of both free and enslaved African-Americans are under several feet of sediment. According to investigative reporter Shonna Riggs, “The location of the gravesites was a mystery until the 1970’s when the US Corp of Engineers was attempting to excavate a ditch in the spillway. According to the Louisiana Historical Preservation Society, there are 14 graves located in the Kugler Cemetery and 144 in the Kenner Cemetery. The artifacts discovered during the 1986 study included coffin furniture, coffins, grave markers, cultural remains, and human remains.The cemeteries, named Kenner and Kugler, are black burial plots which appear to date from the early 1800s to 1929. The sites are located on former adjoining 19th- and early 20th-century sugar plantations in St. Charles Parish. According to oral histories, both cemeteries were dedicated burial plots on the back side of their respective plantations. When the Spillway gates are opened, the cemeteries are flooded with up to 30 feet of water diverted from the Mississippi River into Lake Pontchartrain. The January opening marks the earliest that the 5.7-mile-long spillway connecting the Mississippi to Lake Pontchartrain has been opened, and its 11th opening, since it was completed in 1931.
Morganza Spillway
The Morganza spillway stands between the Mississippi and the Morganza Floodway, which leads to the Atchafalaya Basin and the Atchafalaya River in south-central Louisiana. Its purpose is to divert water from the Mississippi River during major flood events by flooding the Atchafalaya Basin, including the Atchafalaya River and the Atchafalaya Swamp. In an extreme flood event, a major release of water from the Morganza Spillway into the Morganza Floodway and Atchafalaya Basin inundates not only the floodways themselves (between their levees), but extensive additional areas of southern Louisiana throughout the Atchafalaya Basin.
At risk in the Atchafalaya Basin are Morgan City (population 13,500), various smaller populated places, many farms, thousands of oil and gas wells, and considerable swampland. Inhabitants know that the region is a natural floodplain, and the Corps of Engineers issues written notices annually to all interests reminding them of the possibility that it might open the spillway and flood the area. Any decision to open the spillway must be carefully planned to give ample warning and protect life and property. Part of that planning process includes the Corps’ preparation of maps known as “inundation scenarios” so that interested parties can discuss how much water, if any, should be allowed through the spillway.
Quarter Calamondins
It is once again time (11th year!) for me to climb the small fruit tree at the corner of the BK museum garden, pick what is reachable, and answer a LOT of questions from passers by.
(2016) Over the years, I have kept an eye on the citrus tree in the corner of the garden of Mrs. Parkinson-Keyes’ house at Ursuline and Chartres, which looks like a kumquat tree. Some years, it is so laden down with fruit in January that it hangs low enough to pick some on the street side. Almost all winter, the sidewalk is slick with fallen fruit, mushed by the feet of those on their way to Croissant D’Or or to Royal Street and beyond.
A little over a year ago, I decided to contact the director of the Beauregard-Keyes Museum to see if they would allow me to pick the fruit. I emailed them and almost immediately received a reply, “Dear neighbor, I received your request to pick our tree-but I must tell you that it is not a kumquat, but a calamondin tree. If you still would like the fruit, feel free to come in the garden after we open each day and help yourself! We only pick a small amount around the holidays to put on gifts so there is always plenty.”
After looking up calamondins, here is what I found:
Camondin, Citrus mitis, is an acid citrus fruit originating in China, which was introduced to the U.S. as an “acid orange” about 1900. This plant is grown more for its looks than for its fruit edibility and performs well as a patio plant or when trimmed as a hedge. It is hardy to 20 degrees F. and is hardier to cold than any other true citrus specie—only the trifoliate orange and the kumquat are more tolerant to low temperatures. The edible fruit is small and orange, about one inch in diameter, and resembles a small tangerine.
The fruit is smaller than a typical lime, have a thinner skin, and seem best used within a week after harvest if not refrigerated. When picking the fruit, it is best to use clippers or scissors to get them off of the tree, rather than pulling them. This will keep the stem end of the fruit from tearing, which promotes deterioration.The juice of the calamondin can be used like lemon or lime to make refreshing beverages, to flavor fish, to make cakes, marmalades, pies, preserves, sauces and to use in soups and teas. The juice can be frozen in containers or in ice cube trays, then storing the frozen cubes in plastic freezer bags. Use a few cubes at a time to make calamondinade. The juice is primarily valued for making acid beverages. It is often employed like lime or lemon juice to make gelatin salads or desserts, custard pie or chiffon pie. In the Philippines, the extracted juice, with the addition of gum tragacanth as an emulsifier, is pasteurized and bottled commercially. This product must be stored at low temperature to keep well. The juice of the calamondin also makes an excellent hair conditioner. Pour 1 liter of boiling water over thinly sliced fruit. Let it steep. When water is cool, pour through the hair as a final rinse. The fruit juice is used in the Philippines to bleach ink stains from fabrics. It also serves as a body deodorant. Rubbing calamondin juice on insect bites banishes the itching and irritation. It bleaches freckles and helps to clear up acne vulgaris and pruritus vulvae. It is taken orally as a cough remedy and antiphlogistic. Slightly diluted and drunk warm, it serves as a laxative. Combined with pepper, it is prescribed in Malaya to expel phlegm. The root enters into a treatment given at childbirth. The distilled oil of the leaves serves as a carminative with more potency than peppermint oil.
I asked a few of my foraging friends if they wanted to come along and my chef pal Anne Churchill is the one person who almost always takes me up on it. She and I bring a ladder in her old creaky truck and climb up with bags (actually she brings bus tubs from her kitchen) and snip away. We catch up as we work and discuss the health of the tree and answer questions from passersby.
Over the last few years, I have harvested 3-5 gallons of citrus at least 8-10 times, as has Anne. I make it into syrups and share that and the fruit with friends, including the chef at Meauxbar, Kristen Essig, who I used to work with at the farmers market organization.
Today, I actually bought my 10-foot tree pruner and cut more of the old growth away and more from the street side: being alone this time and on that side meant I had many more interactions, including a scowling neighbor who asked if I had permission, one of the museum volunteers who seemed confused by my explanation that I was a neighbor and not their landscaper and many visitors who wanted to know more about the tree, about the house and about other random things.
It is my great pleasure to work in the sun, in my beautiful neighborhood and share the bounty of the trees and plants put here by our previous generations.

They just added this bower for a recent event, likely a wedding.

A close up of one of the calamondins

December’s haul (actually half of it) as I wash the fruit first

Cooking the calamondins. I cook them for a very long time, with honey, cayenne pepper and satsuma juice added.

Finished product

Me up in the tree in 2014
Joyeux Anniversaire, Jeanne d’Arc!
Celebrating St. Joan of Arc’s birthday and Twelfth Night, this annual walking parade is a medieval-themed theatrical procession, inspired by Joan’s time in 1400s France. Joan of Arc liberated the citizens of Orleans, France, from a British siege in her first victory in 1429—resulting in her moniker “The Maid of Orleans.” Our parade honors our own unofficial patron saint, The Maid of New Orleans: the beloved golden French Quarter statue, a gift to the City of New Orleans from France in the 1950s, and our French history and heritage. It’s a short, family-friendly parade — quirky, whimsical and spiritual. Follow us through the French Quarter with one of Joan’s birthday candles, handed out to parade goers in honor of Joan’s 604th birthday.
The parade typically starts on time at 7 sharp and makes 3 pauses for a bit of medieval pageantry:
- toasts from the Historic New Orleans Collection and Grégor Trumel, Consul General of France in New Orleans, from the Williams Research Center balcony at 400 Chartres
- a sword blessing at Saint Louis Cathedral by The Very Reverend Father Philip Landry
- the crowning of the king and king cake ceremony at the end at Washington Artillery Park. Bring your own king cake to eat your first king cake along with the king and Joan.
Parking and Restrooms
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Suggested best parking: Jax parking lot (map). Take the stress out of parking by paying in advance online at the location’s website, www.premiumparking.com/P401
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Public restrooms will be open in the Jax Brewery shopping mall before and during the parade.
Resiliency to some, Reconstruction to others
Full confession: I am one of the (minor) organizers who contributed to the discourse around resiliency when it was first raised a few years back. I like the term, but, like other terms like sustainability and social entrepreneurial, it gets overused and used incorrectly.
I remember when right after Katrina when one of the architects of this resiliency stuff, Mary Rowe, was in our farmers market organization office and we told her that this “recovery”was seen as the new Reconstruction era. She was newly arrived from Canada and so nodded approvingly, or maybe absent-mindedly; we had to explain that we meant that in an entirely negative way.
To not create that situation, all responses to crisis that are led by government or agencies operating within government cronyism need a separate, collaborative and issue-oriented citizen response. That response must operate without interference by those within the system. So far, resiliency as as solution isn’t doing that, but it is early days, so let’s keep trying.
Link to my thoughts on resiliency from today’s Lens opinion piece. (darnola in comments)
Parking rates go up and run later as of Jan 11
The city of New Orleans announced the change Wednesday with the increases set to go into effect Jan. 11. The hours of enforcement have also been extended.
Officials said parking meter rates will increase from $1.50 to $3 in areas of the French Quarter, Marigny, Central Business District and the Warehouse District. Elsewhere in New Orleans, parking meter rates will increase from $1.50 to $2.
Hours of enforcement will extend from the current 8 a.m. to 6 p.m. to 8 a.m. to 7 p.m. Officials said a compromise was made to the proposal, which initially sought to extend enforcement to 10 p.m. Parking enforcement will continue Monday through Saturday.
FQ Crowd Control Plan Dec 30-Jan 1
On Wednesday, Dec. 30, 2015, the Allstate Sugar Bowl Fan Fest at 418 North Peters Street will begin at noon and last throughout the day leading up to a concert performance by Usher beginning at 6:15 p.m. NOPD officers will be monitoring pedestrian crowds in the French Quarter and will divert vehicular traffic if necessary.
Allstate Sugar Bowl Parade
On Thursday, Dec. 31, 2015, at 3:30 p.m., the Allstate Sugar Bowl Parade begins at Elysian Fields and Decatur Street, proceeds down Decatur Street, past Jackson Square and the Allstate Fan Fest at 418 North Peters Street, disbanding at Canal Street.
2016 New Year’s Eve Celebration
On Thursday, Dec. 31, 2015, in preparation for the 2016 New Year’s Eve concert and countdown celebration in front of Jackson Square, Decatur Street will be limited to one lane of traffic each way from Dumaine Street to St. Louis Street until approximately 2:30 a.m. Friday, Jan. 1, 2016.
NOPD officers will be monitoring the pedestrian crowd and will divert vehicular traffic from Decatur Street/ South Peters Street, between Canal Street and Esplanade Avenue, if necessary. NOPD anticipates a large pedestrian crowd and encourages drivers to avoid this area.
2016 Allstate Sugar Bowl
On Friday, Jan. 1, 2016, for the Allstate Sugar Bowl, NOPD officers will be monitoring pedestrian crowds in the French Quarter and will divert vehicular traffic if necessary.
Parking enforcement personnel will be monitoring for illegal parking, including blocking hydrants, driveways and sidewalks, or parking within 20 feet of a crosswalk, intersection or stop signs. Motorists are also reminded to park in the direction of travel on one-way streets and with the right wheel to the curb on two-way streets.

The parade typically starts on time at 7 sharp and makes 3 pauses for a bit of medieval pageantry:
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