US Army Corps of Engineers
U.S. Army Corps of Engineers Headquarters Website

National Levee Safety


These web pages present a history of the work of the National Committee on Levee Safety, including a record of meetings, workshops, information sessions, and testimony before Congress.

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85%. Approximately 85% of the 14,685 miles of levees in the National Levee Database are operated by local sponsors, not the US Army Corps of Engineers.


2-4 years. The Wharton Center for Risk Management and Decision Processes analyzed the entire portfolio of the National Flood Insurance Program over the period 2000–2009. The median tenure of flood insurance in the country was 2 to 4 years. This finding is relatively stable over time and levels of flood hazard. (Source:


Nobody knows. Although the average age of levees in the US Army Corps of Engineers National Levee Database is 54 years, this accounts for only 14,800 miles of an estimated 100,000 miles — or more — of levees in the United States.


100,000 miles. The National Committee on Levee Safety estimates there may be more than 100,000 miles of levees in the nation with tens of millions of people living behind them.


False. The vast majority of the levees across the nation are not part of any federal program. There are approximately 14,800 miles of levee enrolled in US Army Corps of Engineers programs (including those built by the Corps and locally maintained) and another 14,000 -16,000 miles estimated to be operated by other federal agencies (US Bureau of Reclamation, National Resources Conservation Service).


Photo of flooding in Vidalia, LA
VIDALIA, Louisiana — Flood Water continues to rise near the Medical facilities at the Convention Center area. (U.S. Army Corps of Engineers photo)