
Our mission is to provide quality, responsive engineering services to the nation including:
• Planning, designing, building and operating water resources and other civil works projects (Navigation, Flood Risk Reduction, Environmental Protection, Disaster Response, etc.)
• Designing and managing the construction of military facilities for the Army and Air Force (Military Construction)
• Providing design and construction management support for other Defense and federal agencies (Interagency and International Services)
The United States Army Corps of Engineers (USACE) is made up of approximately 34,600 Civilian and 650 military members. Our military and civilian engineers, scientists and other specialists work hand in hand as leaders in engineering and environmental matters. Our diverse workforce of biologists, engineers, geologists, hydrologists, natural resource managers and other professionals meets the demands of changing times and requirements as a vital part of America's Army.

The Los Angeles District provides civil works and military engineering support to Southern California, Nevada, Arizona, and parts of Utah. The area encompasses 226,000 square miles, 420 miles of coastline, 14 harbors, and the highest, lowest, and hottest spots in the contiguous 48 states. Navigation channels for the Ports of Los Angeles and Long Beach account for a majority of West Coast trade and shipping. The region’s diverse political interests are represented by the eight U.S. senators, 48 U.S. representatives, and the governors of California, Arizona, Utah, and Nevada. Major flood-control projects include improvements to Prado Dam in Southern California and Tropicana-Flamingo detention basin construction in Nevada.
The district is responsible for the operation and maintenance of 16 dams, 14 navigation projects, 13 miles of breakwaters, and 54 miles of flood-control channels. The dams and recreation areas host more than 7 million visitors a year. Ecosystem-restoration projects form a major part of the district’s workload, including removal of Matilija Dam in Ventura County, one of the nation’s largest dam removal projects, and the Tres Rios riverbed and habitat restoration in the heart of Phoenix. Military missions at nine installations include a hospital at Fort Irwin and UAV facilities at Creech Air Force Base.