The United States Army Corps of Engineers is involved with a wide spectrum of public works projects: environmental protection, water supply, recreation, flood damage and reduction, beach nourishment, homeland security, military construction, and support to other Governmental agencies. In nineteen (19) different Flood Control Acts since 1917, the United States Congress has authorized the corps to design and build flood protection projects and one risk reduction system in the Greater New Orleans area and throughout the nation.
Many of the Corps of Engineers' civil works projects in New Orleans have been characterized as being riddled with patronage (see pork barrel) or a waste of money. [1] Projects have allegedly been justified based on flawed or manipulated analyses during the planning phase. Some projects are said to have created profound detrimental environmental effects and/or provided questionable economic benefit such as the Mississippi River Gulf Outlet in southeast Louisiana. [2]
Faulty design and substandard construction have been cited in the failure of levees in the wake of Hurricane Katrina. [3] Reforming the Corps' way of doing business has been championed by Senators Russ Feingold and John McCain. [4] The corps has been accused of conducting an orchestrated plan to disparage its critics by posting online anonymous comments. [5] The leader of an independent levee investigation accused the upper levels of the corps of unethical behavior pertaining to its investigation of the levee failures in New Orleans following Hurricane Katrina. [6]
There are several cases of the corps being accused of muzzling expert investigators. One of the difficulties of making changes, however, is the political process itself. [7] [8] Whether or not USACE planners and engineers actually do the best they can with what they are directed to do is part of the controversy.
In October 2005, the Chief of Engineers at the Army Corps, Lt. General Carl Strock commissioned the IPET (Interagency Performance Evaluation Task Force) to evaluate the performance of the hurricane protection systems in New Orleans and the surrounding areas. It was to "provide credible and objective scientific and engineering answers to fundamental questions about the performance of the hurricane protection and flood damage reduction system in the New Orleans metropolitan area." This meant that the organization responsible for the flood protection's performance would convene and manage an investigation of its own work. Neither Louisiana's governor nor the Louisiana Congressional delegation pointed out what appeared to be a conflict of interest. However, Steve Ellis (Taxpayers for Common Sense), Scott Faber (Environmental Defense) and Ivor van Heerden (Louisiana State University Hurricane Center) protested. They preferred to see some sort of independent, federally authorized commission look into the levee breaches, in addition to the Corps.
After the IPET draft final report was released, the grassroots group, Levees.org, headquartered in New Orleans and led by Sandy Rosenthal questioned the credibility of this levee investigation as well. They noted that the study was convened and closely managed by the Corps of Engineers, the agency responsible for the levee design and construction, and that an independent commission should be created. [9] The group contacted U.S. Senator Mary Landrieu's office and submitted documentation with statistics revealing that of the top three IPET leaders, two work for USACE and one did for 15 years (1986–2002). Of the 23 task team leaders, six work for the Corps and seven work for the Engineer Research and Development Center (ERDC). In 10 out of the 15 volumes of the IPET draft final report, the majority of the team members were Corps of Engineers personnel. [10] According to the IPET draft final report, [11] IPET membership consisted of individuals from the Universities of Maryland, Florida, Notre Dame, and Virginia Polytechnic Institute, the National Oceanic and Atmospheric Administration, the South Florida Water Management District, Harris County Flood Control District (Houston, TX), the United States Department of Agriculture, and the United States Bureau of Reclamation as well as those from USACE.
On 1 June 2007, the American Society of Civil Engineers issued its External Peer Review (ERP) report, [12] the peer review of the Corps-sponsored IPET and also an accompanying press release. [13] However, the press release was criticized because it contained information that was not present in the report, included information that conflicted with the report, and minimized the Army Corps' involvement in the catastrophe. The press release stated, "Even without breaching, Hurricane Katrina’s rainfall and surge overtopping would have caused extensive and severe flooding—and the worst loss of life and property loss ever experienced in New Orleans." Meanwhile, the ERP report stated that had levees and pump stations not failed, "far less property loss would have occurred and nearly two-thirds of deaths could have been avoided." This determination was on page 39 of an 80-page report. The New Orleans Times Picayune editorial board decried ASCE's press release.
In October 2007, Raymond Seed, a civil engineering professor at the University of California-Berkeley and an ASCE member submitted an ethics complaint to the ASCE which alleged that the Corps of Engineers, with the help of the ASCE, sought to minimize the Corps' mistakes in the flooding, intimidate anyone who tried to intervene, and delay the final results until the public's attention had turned elsewhere. [14] The Corps acknowledged receiving a copy of the letter but has refused to comment until after the ASCE's Committee on Professional Conduct (CPC), led by Rich Hovey, comments on the complaint. [15] It took over a year for the ASCE to announce the results of the CPC. [16] When the results of the self-study were finally announced, the ASCE panel did not file any charges of ethical misconduct. They blamed their errors in their June press release on its creation by "staff level and not by review panel members." [17]
In November 2007, Levees.Org posted a spoof [18] on YouTube satirizing what it believed was an overly cozy relationship between the Army Corps of Engineers and the members of the ASCE's ERP. The video depicted money changing hands in an overstuffed brief case and ERP members covered with bling. The group contended that the ERP validating the IPET process was an apparent conflict of interest because the Corps selected the ASCE, directly paid the ASCE over $2 million and awarded the panel members Outstanding Civilian Service Medals (OCSM) before their work was complete.
The ASCE presented Levees.org with a threat of lawsuit if the group did not remove the video from YouTube. [19] The group took it down while its leader Sandy Rosenthal examined options from response. [20] Flanked by lawyers with Adams and Reese, the group ignored the threat and reposted the controversial video to YouTube citing Louisiana's Anti-SLAPP statute—a "strategic lawsuit against public participation"—which allows courts to weed out lawsuits designed to chill public participation on matters of public significance. [21] In a response for comment, President David Mongan P.E. replied, "Since the video has already been widely reposted by other organizations, moving forward, we feel our time and expertise are best utilized working to help protect the residents of New Orleans from future storms and flooding."
In 8 December 2007, the ASCE confirmed that it had launched two ethics investigations. One of them was an internal probe led by Rich Hovey to look into Dr. Ray Seed's claims in his 42-page ethics complaint accusing it of colluding with the Army Corps to cover up its engineering mistakes discovered after the 2005 hurricane struck. [22]
The second was external and would look at the ethics of the ASCE receiving funds directly from those organizations selecting the ASCE for its peer reviews. The task force was chaired by the Honorable Sherwood L. Boehlert, former Chairman of the House Science Committee. The other participants are as follows: Joseph Bordogna, PhD, Former Deputy Director of the National Science Foundation; Jack W. Hoffbuhr, P.E., DEE, Former Executive Director of the American Water Works Association; Jack Snell, PhD, Former Director of the National Institute of Standards and Technology's Building and Fire Research Laboratory; William A. Wulf, PhD, Former President of the National Academy of Engineering. [23]
On 12 September 2008, Congressman Boehlert released his investigative report on Dr. Ray Seed's allegations contained in his ethics complaint. The report, issued nearly nine months after their investigation began, criticized the ASCE for apparent conflicts of interest. The Boehlert Report [23] made several major recommendations, the most important being that funding for peer reviews over $1 million should come from a separate source, like the National Institute of Standards and Technology (NIST). The report also recommended that the ASCE Headquarters should facilitate but not control the assessment teams, and that dissemination of information to the public and press not be under the extremely tight controls that Dr. Seed and his team experienced. The report concluded that ASCE should draw up an ethics policy to eliminate questions of possible conflicts of interest. The task force also acknowledged that the
"[P]otential conflicts of interest in ASCE's engineering review process are not unique to ASCE and can be addressed through procedures utilized by many government agencies charged with providing unbiased assessments to the public". [23]
On 6 April 2009, the internal probe with the ASCE issued a report that ordered a retraction of the ASCE's 1 June 2007 press release. [24] The panel determined that the press release "inadvertently conveyed a misleading impression regarding the role of engineering failures in the devastation of New Orleans." The release also incorrectly said that surge levels along Mississippi's coastline were higher than water levels caused by a tsunami in the Indian Ocean in 2004, and incorrectly repeated estimates of deaths and property damage that might have occurred in New Orleans if levees and floodwalls hadn't been breached.
On 5 April 2006, months after independent investigators had demonstrated that the levee failures were not due to natural forces beyond intended design strength, Lt. Gen. Carl Strock testified before the U.S. Senate Subcommittee on Energy and Water that, "We have now concluded we had problems with the design of the structure." He also testified that the Corps of Engineers did not know of this mechanism of failure prior to 29 August 2005. The claim of ignorance is refuted by the National Science Foundation investigators hired by the Army Corps of Engineers, who point to a 1986 study (E-99 study) by the corps itself that such separations were possible in the I-wall design.[28] This issue is addressed again in a study released in August 2015 by J. David Rogers et al. who concluded that a misinterpretation of the 1986 study occurred apparently because the Corps had draped a tarpaulin over the gap that formed between the bases of the deflecting sheet piles and the soil in which they were embedded, so they did not see the gap. The tarpaulin was there for safety and to stop water that would seep through the interlocks. Failure to include the gap in interpretation of the test results introduced unconservatism in the final designs based on these tests. It allowed the use of shorter sheet piles, and reduced overall flood protection reliability. [25]
Scientists from LSU and from the private sector conducted a forensic investigation of the levee failures. Commissioned by the Louisiana State Department of Transportation and Development (DOTD), it was led by Dr. Ivor van Heerden, Deputy Director of the LSU Hurricane Center, and released in 2007. They found that the hurricane protection system was not properly conceived to accomplish the 1965 Congressional mandate to protect against the "most severe combination of meteorological conditions reasonably expected," and they highlighted many other shortcomings in the hurricane protection system creation practices. It recommended independent review of levee projects, among other suggestions. [26]
On 9 April 2009 LSU announced it was firing Ivor van Heerden, effective the end of the spring semester 2010. Van Heerden said he was not offered any reason. [27] A criticism from a retired corps employee was that van Heerden, a geologist, had allegedly offered "engineering services" or had represented himself "as an engineer publicly without having a professional engineer's license" and consequently was a legal liability for his employer, LSU. [28] On 10 February 2010, Dr. Van Heerden filed a wrongful termination lawsuit in Louisiana state court alleging that LSU officials waged a campaign of retaliation against him that culminated with the termination of his position with the university. [29] He settled with the university shortly after embarrassing emails were made public. The emails traded between members of the Louisiana Governor's office and LSU officials three weeks after Katrina revealed an apparent early plan to muzzle Dr. Ivor van Heerden when he blamed the Army Corps of Engineers for most of the New Orleans area flooding during Katrina. [30] Dr. Van Heerden settled for $435,000. The university spent nearly a million dollars fighting the legal case. [31]
In 2007, the New Orleans District hired a PR firm, Outreach Process Partners (OPP), allegedly to develop educational materials and set up public meetings that the Corps is required by law to hold in order to get feedback from residents about corps' projects. [32] [33] The total cost of the PR contract was $5,200,000. [34]
In May 2009, an internet blogger discovered that OPP had a bar graph on its website that boasted how it helped reduce negative news coverage that plagued the Corps following Hurricane Katrina. [35] The group Levees.org publicly stated that corps' should not be spending taxpayer dollars trying to repair its reputation. [36]
In December 2008, Sandy Rosenthal leader of the group Levees.org called a New Orleans CBS affiliate television station and offered to give them an exclusive to publicize several incidences[ spelling? ] in which employees of the corps used taxpayer-funded computers to post derogatory blog comments deriding citizen activists' efforts. In response to the news story, the U.S. Army Corps of Engineers described the event as an isolated incident. [37] Three days after the incident was publicized, the Commander of the New Orleans District of the Corps of Engineers, Colonel Alvin Lee, issued a formal apology. "Please accept my apology for the unprofessional comments someone in my District posted to your web site," said the letter. "I have reinforced with my entire staff that this was an inappropriate and unacceptable use of our computers and time." [38]
On 23 June 2009, US Senator Mary Landrieu issued this statement to WWL TV Eyewitness News in New Orleans [39] with regard to the scandal:
"I am very concerned by the reports that a number of Corps employees have engaged in a disingenuous campaign to undercut their critics in Louisiana", Landrieu said. "My staff and I will continue to review these allegations and will urge Pentagon officials to thoroughly review this matter".
On 29 September 2009, the Department of Defense Inspector General's Office has closed its investigation. "We believe that (corps New Orleans District office) officials took appropriate actions once informed of the allegations at issue," Assistant Inspector General John Crane said in a letter to U.S. Sen. Mary Landrieu, D-La. "Accordingly, further review by this agency is not warranted." Those actions included strongly worded messages to corps employees telling them comments that demeaned corps critics were not allowed. In addition, access to the site of the Levees.org group was blocked from corps computers, preventing employees from commenting there. Lastly, the employee of a contractor—who was a former corps employee himself and was identified as using a government computer to post disparaging remarks on NOLA.com—was barred from working on corps projects. [40]
Different types of hurricane protection were proposed to protect the southern Louisiana region.
Between 1970 and 1975, the Corps developed a plan for massive sea gates for the region east of New Orleans that would prevent storm surge from flowing through Lake Borgne and into Lake Pontchartrain through the Rigolets and Chef Menteur passes. Referred to as the Barrier Plan, it included a series of levees along the lake Gulf Intracoastal Waterway (GIWW), a navigable inland waterway. [41] A small group, led by Luke Fontana, filed a lawsuit against the Barrier Plan in 1976 over the Corps' Environmental Impact Study (EIS). In Save our Wetlands v Rush, the plaintiffs claimed that the Corps' EIS did not meet the requirements of Section 102 of the National Environmental Policy Act (NEPA). The court agreed with Fontana noting, among other things, that the EIS was based on obsolete data and that the Corps' biological analysis 'relied entirely on a single telephone conversation with a marine biologist.' [42] Judge Charles Schwartz issued an injunction preventing further progress on the barrier option until the Corps revised its EIS. However, the Corps did not return and, in 1980, concluded that an alternative option of higher levees providing hurricane protection was less costly, less damaging to the environment and more acceptable to local interests [43]
After Katrina, the controversy was revisited, with some blaming the lack of the massive barriers – and the environmentalists – for the storm's destruction. But Corps' officials told the Government Accountability Office that "if they had gone ahead with the floodgate plan, Katrina's devastation would have been even worse, because the barriers would not have been large enough to keep the storm surge out of the lake – and the levees around the city would have been even lower." [44]
In March 2007, the City of New Orleans filed a $77 billion claim against the USACE for damages sustained from faulty levee construction and resultant flooding during Hurricane Katrina. Of this amount, only $1 billion was designated as direct "infrastructure damages"; the rest was attributed to consequential damages such as industry losses and the city's tarnished image. [45] Hundreds of thousands of individual claims were received in the Corps' New Orleans District office. In addition to the City of New Orleans, other claimants include Entergy New Orleans, the city's now-bankrupt electric utility, and New Orleans Sewerage and Water Board. [46]
In February 2007 U.S. District Court Judge Stan Duval ruled that the Flood Control Act of 1928 did not apply to cases involving navigational projects. [47] He ruled that the Corps may be sued over alleged defects in its Mississippi River-Gulf Outlet navigation channel. Immunity for cases involving flood levees was apparently not addressed at that time.
On 30 January 2008, Judge Duval ruled that even though the US Army Corps of Engineers was negligent and derelict in their duty to provide flood protection for the citizens of New Orleans, he was compelled to dismiss a class action lawsuit filed against the Corps for levee breaches after Hurricane Katrina. He cited the Flood Control Act of 1928 which, among other actions, provided protection to the federal government from lawsuits when flood control projects like levees break. [48]
While the United States government is immune for legal liability for the defalcations alleged herein, it is not free, nor should it be, from posterity's judgment concerning its failure to accomplish what was its task. This story—50 years in the making—is heart-wrenching. Millions of dollars were squandered in building a levee system with respect to these outfall canals which was known to be inadequate by the corps's own calculations. [49]
Duval's decision left the New Orleans Sewerage & Water Board and Orleans Levee District as defendants in the lawsuit. [50] The dismissal of the lawsuit also denied about 489,000 claims by businesses, government entities, and residents, seeking trillions of dollars in damages against the Corps, which were pinned to the suit and a similar one filed over flooding from a navigation channel in St. Bernard Parish. It was unclear how many claims could still move forward. The plaintiffs vowed to appeal to the United States Court of Appeals for the Fifth Circuit.
On 19 November 2009, the Court found the Army Corps responsible for the flooding by not properly maintaining the Mississippi River-Gulf Outlet Canal (MRGO). Judge Duval said that the "Corps had an opportunity to take a myriad of actions to alleviate this deterioration or rehabilitate this deterioration and failed to do so." Duval ruled in favor of five of the six plaintiffs, awarding those from Lower Ninth Ward and St. Bernard Parish between $100,000 and $317,000 in damages. Duval, however, ruled against a couple from New Orleans East. [51] In his decision, Duval wrote that the Corps was aware that deteriorating conditions of the canal would affect the levees in St. Bernard Parish and the Lower Ninth Ward neighborhoods. Duval awarded a total of $719,000 to the five plaintiffs but the decision leaves the U.S. government open to additional lawsuits from those affected. [52] A spokesman for the Corps indicated the matter would be appealed, up to and including the U.S. Supreme Court. [53] In April 2019, a federal appeals court overturned the decision, saying that the plaintiffs failed to prove that construction or operation of the outlet caused the flooding.
The American Society of Civil Engineers (ASCE) is a tax-exempt professional body founded in 1852 to represent members of the civil engineering profession worldwide. Headquartered in Reston, Virginia, it is the oldest national engineering society in the United States. Its constitution was based on the older Boston Society of Civil Engineers from 1848.
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.
Hurricane Katrina was a devastating and deadly tropical cyclone that caused 1,392 fatalities and damages estimated at $186.3 billion in late August 2005, particularly in the city of New Orleans and its surrounding area. 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.
As the center of Hurricane Katrina passed southeast of New Orleans on August 29, 2005, winds downtown were in the Category 1 range with frequent intense gusts. The storm surge caused approximately 23 breaches in the drainage canal and navigational canal levees and flood walls. As mandated in the Flood Control Act of 1965, responsibility for the design and construction of the city’s levees belongs to the United States Army Corps of Engineers and responsibility for their maintenance belongs to the Orleans Levee District. The failures of levees and flood walls during Katrina are considered by experts to be the worst engineering disaster in the history of the United States. By August 31, 2005, 80% of New Orleans was flooded, with some parts under 15 feet (4.6 m) of water. The famous French Quarter and Garden District escaped flooding because those areas are above sea level. The major breaches included the 17th Street Canal levee, the Industrial Canal levee, and the London Avenue Canal flood wall. These breaches caused the majority of the flooding, according to a June 2007 report by the American Society of Civil Engineers. The flood disaster halted oil production and refining which increased oil prices worldwide.
Hurricane preparedness in New Orleans has been an issue since the city's early settlement because of its location.
From 1890 through 2006, the Orleans Levee Board (OLB) was the body of commissioners that oversaw the Orleans Levee District (OLD) which supervised the levee and floodwall system in Orleans Parish, Louisiana The role of the OLB has changed over time. Prior to Hurricane Betsy in 1965, the OLB developed land and sold it to raise money to build and improve flood protection levees. After Betsy, Congress passed the Flood Control Act of 1965 which directed the Army Corps of Engineers to design and build the hurricane flood protection system enveloping New Orleans. Owing to the 1965 legislation, the OLB's duties were now limited to collecting the 30% cost share for project design and construction, and to maintaining and operating completed flood protection structures.
Hurricane Katrina struck the United States on August 29, 2005, causing over a thousand deaths and extreme property damage, particularly in New Orleans. The incident affected numerous areas of governance, including disaster preparedness and environmental policy.
The 17th Street Canal is the largest and most important drainage canal in the city of New Orleans. Operating with Pump Station 6, it moves water into Lake Pontchartrain. The canal, along with the Orleans Canal and the London Avenue Canal, form the New Orleans Outfall Canals. The 17th Street Canal forms a significant portion of the boundary between the city of New Orleans and Metairie, Louisiana. The canal has also been known as the Metairie Outlet Canal and the Upperline Canal.
The London Avenue Canal is a drainage canal in New Orleans, Louisiana, used for pumping rain water into Lake Pontchartrain. The canal runs through the 7th Ward of New Orleans from the Gentilly area to the Lakefront. It is one of the three main drainage canals responsible for draining rainwater from the main basin of New Orleans. The London Avenue Canal's flood walls built atop earthen levees breached on both sides during Hurricane Katrina in 2005.
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.
Ivor van Heerden is a South African-born American scientist, recognized for his work in the marine sciences and his significant contributions in the field of hurricane research. He was the deputy director of the Louisiana State University (LSU) Hurricane Center; however his tenure at LSU ended in 2010, when he was dismissed by the university under controversial circumstances following his criticism of the handling of Hurricane Katrina.
The Bonnet Carré Spillway is a flood control operation in the Lower Mississippi Valley. Located in St. Charles Parish, Louisiana, about 12 miles (19 km) west of New Orleans, it allows floodwaters from the Mississippi River to flow into Lake Pontchartrain and thence into the Gulf of Mexico. The spillway was constructed between 1929 and 1931, following the Great Mississippi Flood of 1927, and has been designated as a National Historic Civil Engineering Landmark by the American Society of Civil Engineers.
ING 4727 was a barge belonging to Ingram Barge Company that became infamous when it went over or through a levee and landed in a residential neighborhood of New Orleans, Louisiana during Hurricane Katrina.
The Southeast Louisiana Flood Protection Authority (SLFPA) was established by Louisiana state law Revised Statute §38:330.1 in September 2006. Its operation began in January 2007. The Authority consists of two regional levee boards which oversee flood protection in the Greater New Orleans area on the east and west banks of the Mississippi River. Commissioners of both Authorities have clearly defined term limits. The Authority also has a Nominating Committee.
When the Levees Broke: A Requiem in Four Acts is a 2006 documentary film directed by Spike Lee about the devastation of New Orleans, Louisiana following the failure of the levees during Hurricane Katrina. It was filmed in late August and early September 2005, and premiered at the New Orleans Arena on August 16, 2006 and was first aired on HBO the following week. The television premiere aired in two parts on August 21 and 22, 2006 on HBO. It has been described by Sheila Nevins, chief of HBO's documentary unit, as "one of the most important films HBO has ever made." The title is a reference to the blues tune "When the Levee Breaks" by Kansas Joe McCoy and Memphis Minnie about the Great Mississippi Flood of 1927.
The Flood Control Act of 1965, Title II of Pub. L.Tooltip Public Law 89–298, was enacted on October 27, 1965, by the 89th Congress and authorized the United States Army Corps of Engineers to design and construct numerous flood control projects including the Lake Pontchartrain and Vicinity, Louisiana Hurricane Protection Project in the New Orleans region of south Louisiana.
The United States Army Corps of Engineers is involved with a wide spectrum of public works projects: environmental protection, water supply, recreation, flood damage and reduction, beach nourishment, homeland security, military construction, and support to other Governmental agencies. Through 19 Flood Control Acts since 1917, Congress has authorized the Corps of Engineers to be involved with flood protection and damage reduction in almost every state of the union.
The Standard Project Hurricane, or SPH, was the initial model used to determine how strong the hurricane protection system should be in order to protect the New Orleans, Louisiana area from flooding due to hurricanes.
There are three outfall canals in New Orleans, Louisiana – the 17th Street, Orleans Avenue and London Avenue canals. These canals are a critical element of New Orleans’ flood control system, serving as drainage conduits for much of the city. There are 13 miles (21 km) of levees and floodwalls that line the sides of the canals. The 17th Street Canal is the largest and most important drainage canal and is capable of conveying more water than the Orleans Avenue and London Avenue Canals combined.
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