This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: "United States Army Corps of Engineers" – news · newspapers · books · scholar · JSTOR (February 2022) (Learn how and when to remove this message)

United States Army Corps of Engineers
Country United States
Branch U.S. Army
TypeDirect Reporting Unit
RoleMilitary engineering
Part of U.S. Department of the Army
HeadquartersWashington, D.C., U.S.
Motto(s)French: Essayons, lit.'Let Us Try'
Colors   Scarlet and white
Anniversaries16 June (Organization Day)
Commander and Chief of EngineersLieutenant General Scott A. Spellmon
Deputy CommanderMajor General William H. Graham Jr.
Coat of arms
Engineer Regimental insignia
The headquarters of the U.S. Army Corps of Engineers Norfolk District in Norfolk, Virginia
Olmsted Locks and Dam on the Ohio River in Olmsted, Illinois, was under construction for over 20 years under the U.S. Army Corps of Engineers' watch; it opened in 2018.
Celebratory proceedings in 2006 for the opening of a new women's center in Iraq, constructed by the Corps of Engineers[1]
U.S. Army Corps of Engineers dredge Tauracavor 3 in New York Harbor
Mississippi River improvements made by the Corps of Engineers in 1890
Proctor Lake in Texas, constructed by the Corps of Engineers to provide flood control, drinking water, and recreation

The United States Army Corps of Engineers (USACE) is both a direct reporting unit (DRU) and the military engineering branch of the United States Army that has three primary mission areas: Engineer Regiment, military construction, and civil works. USACE has 37,000 civilian and military personnel,[2] making it one of the world's largest public engineering, design, and construction management agencies. The USACE workforce is approximately 97% civilian, 3% active duty military. The civilian workforce is primarily located in the United States, Europe and in select Middle East office locations. Civilians do not function as active duty military and are not required to be in active war and combat zones, however volunteer (with pay) opportunities do exist for civilians to do so.

The day-to-day activities of the three mission areas are administered by a lieutenant general known as the chief of engineers/commanding general. The chief of engineers commands the Engineer Regiment, comprising combat engineer, rescue, construction, dive, and other specialty units, and answers directly to the Chief of Staff of the Army. Combat engineers, sometimes called sappers, form an integral part of the Army's combined arms team and are found in all Army service components: Regular Army, National Guard, and Army Reserve. Their duties are to breach obstacles; construct fighting positions, fixed/floating bridges, and obstacles and defensive positions; place and detonate explosives; conduct route clearance operations; emplace and detect landmines; and fight as provisional infantry when required. For the military construction mission, the chief of engineers is directed and supervised by the Assistant Secretary of the Army for installations, environment, and energy, whom the President appoints and the Senate confirms. Military construction relates to construction on military bases and worldwide installations.

On 16 June 1775, the Continental Congress, gathered in Philadelphia, granted authority for the creation of a "Chief Engineer for the Army". Congress authorized a corps of engineers for the United States on 11 March 1779. The Corps as it is known today came into being on 16 March 1802, when the president was authorized to "organize and establish a Corps of Engineers ... that the said Corps ... shall be stationed at West Point in the State of New York and shall constitute a Military Academy." A Corps of Topographical Engineers, authorized on 4 July 1838, merged with the Corps of Engineers in March 1863.

Civil works are managed and supervised by the Assistant Secretary of the Army. Army civil works include three U.S. Congress-authorized business lines: navigation, flood and storm damage protection, and aquatic ecosystem restoration. Civil works is also tasked with administering the Clean Water Act Section 404 program, including recreation, hydropower, and water supply at USACE flood control reservoirs, and environmental infrastructure. The civil works staff oversee construction, operation, and maintenance of dams, canals and flood protection in the U.S., as well as a wide range of public works throughout the world.[3] Some of its dams, reservoirs, and flood control projects also serve as public outdoor recreation facilities. Its hydroelectric projects provide 24% of U.S. hydropower capacity.

The Corps of Engineers is headquartered in Washington, D.C., and has a budget of $7.8 billion (FY2021).[4]

The corps's mission is to "deliver vital public and military engineering services; partnering in peace and war to strengthen our nation's security, energize the economy and reduce risks from disasters."[5]

Its most visible civil works missions include:


18th century

Plan of the United States Military Academy in West Point, New York

The history of United States Army Corps of Engineers can be traced back to the American Revolution. On 16 June 1775, the Continental Congress organized the Corps of Engineers, whose initial staff included a chief engineer and two assistants.[6] Colonel Richard Gridley became General George Washington's first chief engineer. One of his first tasks was to build fortifications near Boston at Bunker Hill. The Continental Congress recognized the need for engineers trained in military fortifications and asked the government of King Louis XVI of France for assistance. Many of the early engineers in the Continental Army were former French officers.

Louis Lebègue Duportail, a lieutenant colonel in the French Royal Corps of Engineers, was secretly sent to North America in March 1777 to serve in George Washington's Continental Army. In July 1777 he was appointed colonel and commander of all engineers in the Continental Army and, on 17 November 1777, he was promoted to brigadier general. When the Continental Congress created a separate Corps of Engineers in May 1779, Duportail was appointed as its commander. In late 1781 he directed the construction of the allied U.S.-French siege works at the Battle of Yorktown.

On 26 February 1783, the Corps was disbanded. It was re-established during the Presidency of George Washington.

From 1794 to 1802, the engineers were combined with the artillery as the Corps of Artillerists and Engineers.[7]

19th century

See also: United States Army Corps of Topographical Engineers

The Corps of Engineers, as it is known today, was established on 16 March 1802, when President Thomas Jefferson signed the Military Peace Establishment Act, whose aim was to "organize and establish a Corps of Engineers ... that the said Corps ... shall be stationed at West Point in the State of New York and shall constitute a military academy." Until 1866, the superintendent of the United States Military Academy was always an Engineer Officer.

The General Survey Act of 1824 authorized the use of Army engineers to survey road and canal routes for the growing nation.[8] That same year, Congress passed an "Act to Improve the Navigation of the Ohio and Mississippi Rivers" and to remove sand bars on the Ohio and "planters, sawyers, or snags" (trees fixed in the riverbed) on the Mississippi, for which the Corps of Engineers was identified as the responsible agency.[9]

Separately authorized on 4 July 1838, the Corps of Topographical Engineers consisted only of officers and was used for mapping and the design and construction of federal civil works and other coastal fortifications and navigational routes. It was merged with the Corps of Engineers on 31 March 1863, at which point the Corps of Engineers also assumed the Lakes Survey District mission for the Great Lakes.[10]

In 1841, Congress created the Lake Survey. The survey, based in Detroit, Michigan, was charged with conducting a hydrographical survey of the Northern and Northwestern lakes and preparing and publishing nautical charts and other navigation aids. The Lake Survey published its first charts in 1852.[11]

In the mid-19th century, Corps of Engineers' officers ran Lighthouse Districts in tandem with U.S. Naval officers.

Civil War

Pontoon bridge across the James River in Virginia in 1864
Pontoon bridge across the James River in Virginia in 1864

The Army Corps of Engineers played a significant role in the American Civil War. Many of the men who would serve in the top leadership in this organization were West Point graduates. Several rose to military fame and power during the Civil War. Some examples include Union generals George McClellan, Henry Halleck, and George Meade; and Confederate generals Robert E. Lee, Joseph Johnston, and P.G.T. Beauregard.[6] The versatility of officers in the Army Corps of Engineers contributed to the success of numerous missions throughout the Civil War. They were responsible for building pontoon and railroad bridges, forts and batteries, destroying enemy supply lines (including railroads), and constructing roads for the movement of troops and supplies.[6] Both sides recognized the critical work of engineers. On 6 March 1861, once the South had seceded from the Union, its legislature passed an act to create a Confederate Corps of Engineers.[12]

The South was initially at a disadvantage in engineering expertise; of the initial 65 cadets who resigned from West Point to accept positions with the Confederate Army, only seven were placed in the Corps of Engineers.[12] The Confederate Congress passed legislation that authorized a company of engineers for every division in the field; by 1865, the CSA had more engineer officers serving in the field of action than the Union Army.[12]

One of the main projects for the Army Corps of Engineers was constructing railroads and bridges. Union forces took advantage of such Confederate infrastructure because railroads and bridges provided access to resources and industry. The Confederate engineers, using slave labor,[13] built fortifications that were used both offensively and defensively, along with trenches that made them harder to penetrate. This method of building trenches was known as the zigzag pattern.[12]

20th century

A bulldozer operated by Sergeant C. G. McCutcheon of the 1304th Engineer Construction Battalion on Ledo Road in Burma in 1944

The National Defense Act of 1916 authorized a reserve corps in the Army, and the Engineer Officers' Reserve Corps and the Engineer Enlisted Reserve Corps became one of the branches.[14] Some of these personnel were called into active service for World War I.

From the beginning, many politicians wanted the Corps of Engineers to contribute to both military construction and civil works. Assigned the military construction mission on 1 December 1941, after the Quartermaster Department struggled with the expanding mission,[15] the Corps built facilities at home and abroad to support the U.S. Army and Air Force. During World War II the USACE program expanded to more than 27,000 military and industrial projects in a $15.3 billion mobilization effort. Included were aircraft, tank assembly, and ammunition plants; camps for 5.3 million soldiers; depots, ports, and hospitals; and the rapid construction of such landmark projects such as the Manhattan Project at Los Alamos, Hanford and Oak Ridge among other places, and the Pentagon, the Department of Defense headquarters across the Potomac from Washington, DC.

In civilian projects, the Corps of Engineers became the lead federal navigation and flood control agency. Congress significantly expanded its civil works activities, becoming a major provider of hydroelectric energy and the country's leading provider of recreation, Its role in responding to natural disasters also grew dramatically, especially following the devastating Mississippi Flood of 1927. In the late 1960s, the agency became a leading environmental preservation and restoration agency.[citation needed]

In 1944, specially trained army combat engineers were assigned to blow up underwater obstacles and clear defended ports during the invasion of Normandy.[16][17] During World War II, the Army Corps of Engineers in the European Theater of Operations was responsible for building numerous bridges, including the first and longest floating tactical bridge across the Rhine at Remagen, and building or maintaining roads vital to the Allied advance across Europe into the heart of Germany. In the Pacific theater, the "Pioneer troops" were formed, a hand-selected unit of volunteer Army combat engineers trained in jungle warfare, knife fighting, and unarmed jujitsu (hand-to-hand combat) techniques.[18] Working in camouflage, the Pioneers cleared jungle, prepared routes of advance and established bridgeheads for the infantry, as well as demolishing enemy installations.[18]

Five commanding generals (chiefs of staff after the 1903 reorganization) of the United States Army held engineer commissions early in their careers. All transferred to other branches before being promoted to the top position. They were Alexander Macomb, George B. McClellan, Henry W. Halleck, Douglas MacArthur, and Maxwell D. Taylor.[19]

Notable dates and projects

Construction on the Gatun Lock at the Panama Canal on 12 March 1912
Kennedy Space Center in Florida

Occasional civil disasters, including the Great Mississippi Flood of 1927, resulted in greater responsibilities for the Corps of Engineers. The aftermath of Hurricane Katrina in New Orleans and the collapse of the Francis Scott Key Bridge in Baltimore provide other examples of this.[25]



The Chief of Engineers and Commanding General (Lt. general) of U.S. Army Corps of Engineers has three mission areas: combat engineers, military construction, and civil works. For each mission area the Chief of Engineers/Commanding General is supervised by a different person. For civil works the Commanding General is supervised by the civilian Assistant Secretary of the Army (Civil Works). Three deputy commanding generals (major generals) report to the chief of engineers, who have the following titles: Deputy Commanding General, Deputy Commanding General for Civil and Emergency Operation, and Deputy Commanding General for Military and International Operations.[26] The Corps of Engineers headquarters is located in Washington, D.C. The headquarters staff is responsible for Corps of Engineers policy and plans the future direction of all other USACE organizations. It comprises the executive office and 17 staff principals. USACE has two civilian directors who head up Military and Civil Works programs in concert with their respective DCG for the mission area.

Divisions and districts

The U.S. Army Corps of Engineers is organized geographically into eight permanent divisions, one provisional division, one provisional district, and one research command reporting directly to the HQ. Within each division, there are several districts.[27] Districts are defined by watershed boundaries for civil works projects and by political boundaries for military projects.

Map of U.S. Army Corps of Engineers Civil Engineer divisions and districts

The Engineer Regiment

See also: Military engineering of the United States

U.S. Army engineer units outside of USACE Districts and not listed below fall under the Engineer Regiment of the U.S. Army Corps of Engineers, which comprises the majority of Army engineer soldiers. The Regiment includes combat engineers, whose duties are to breach obstacles; construct fighting positions, fixed/floating bridges, and obstacles and defensive positions; place and detonate explosives; conduct route clearance operations; emplace and detect landmines; and fight as provisional infantry when required. It also includes support engineers, who are more focused on construction and sustainment. Headquartered at Fort Leonard Wood, MO, the Engineer Regiment is commanded by the Engineer Commandant, currently a position filled by an Army brigadier general.

The Engineer Regiment includes the U.S. Army Engineer School (USAES) which publishes its mission as: Generate the military engineer capabilities the Army needs: training and certifying Soldiers with the right knowledge, skills, and critical thinking; growing and educating professional leaders; organizing and equipping units; establishing a doctrinal framework for employing capabilities; and remaining an adaptive institution in order to provide Commanders with the freedom of action they need to successfully execute Unified Land Operations.

Other USACE organizations

There are several other organizations within the Corps of Engineers:[3][28]

Directly reporting military units

Mission areas


See also: Sapper, Combat engineer, and Military engineering

20th Engineer Brigade soldiers construct a bridge on the Euphrates River.

USACE provides support directly and indirectly to the warfighting effort.[31] They build and help maintain much of the infrastructure that the Army and the Air Force use to train, house, and deploy troops. USACE built and maintained navigation systems and ports provide the means to deploy vital equipment and other material. Corps of Engineers Research and Development (R&D) facilities help develop new methods and measures for deployment, force protection, terrain analysis, mapping, and other support.

USACE directly supports the military in the battle zone, making expertise available to commanders to help solve or avoid engineering (and other) problems. Forward Engineer Support Teams, FEST-A's or FEST-M's, may accompany combat engineers to provide immediate support, or to reach electronically into the rest of USACE for the necessary expertise. A FEST-A team is an eight-person detachment; a FEST-M is approximately 36. These teams are designed to provide immediate technical-engineering support to the warfighter or in a disaster area. Corps of Engineers' professionals use the knowledge and skills honed on both military and civil projects to support the U.S. and local communities in the areas of real estate, contracting, mapping, construction, logistics, engineering, and management experience. This work currently[when?] includes support for rebuilding Iraq, establishing Afghanistan infrastructure, and supporting international and inter-agency services.

In addition, the work of almost 26,000 civilians on civil-works programs throughout USACE provides a training ground for similar capabilities worldwide. USACE civilians volunteer for assignments worldwide. For example, hydropower experts have helped repair, renovate, and run hydropower dams in Iraq in an effort to help get Iraqis to become self-sustaining.[28][32]

Homeland security

USACE supports the United States' Department of Homeland Security and the Federal Emergency Management Agency (FEMA) through its security planning, force protection, research and development, disaster preparedness efforts, and quick response to emergencies and disasters.[33]

The CoE conducts its emergency response activities under two basic authorities — the Flood Control and Coastal Emergency Act (Pub. L.Tooltip Public Law (United States) 84–99), and the Stafford Disaster Relief and Emergency Assistance Act (Pub. L.Tooltip Public Law (United States) 93–288). In a typical year, the Corps of Engineers responds to more than 30 Presidential disaster declarations, plus numerous state and local emergencies. Emergency responses usually involve cooperation with other military elements and Federal agencies in support of State and local efforts.

Infrastructure support

Soldiers assembling sections of a HESCO collapsible barrier device in Fargo, North Dakota

Work comprises engineering and management support to military installations, global real estate support, civil works support (including risk and priorities), operations and maintenance of Federal navigation and flood control projects, and monitoring of dams and levees.[34]

More than 67 percent of the goods consumed by Americans and more than half of the nation's oil imports are processed through deepwater ports maintained by the Corps of Engineers, which maintains more than 12,000 miles (19,000 km) of commercially navigable channels across the U.S.

In both its Civil Works mission and Military Construction program, the Corps of Engineers is responsible for billions of dollars of the nation's infrastructure. For example, USACE maintains direct control of 609 dams, maintains or operates 257 navigation locks, and operates 75 hydroelectric facilities generating 24% of the nation's hydropower and three percent of its total electricity. USACE inspects over 2,000 Federal and non-Federal levees every two years.

Four billion gallons of water per day are drawn from the Corps of Engineers' 136 multi-use flood control projects comprising 9,800,000 acre-feet (12.1 km3) of water storage, making it one of the United States' largest water supply agencies.[28]

The 249th Engineer Battalion (Prime Power), the only active duty unit in USACE, generates and distributes prime electrical power in support of warfighting, disaster relief, stability and support operations as well as provides advice and technical assistance in all aspects of electrical power and distribution systems. The battalion deployed in support of recovery operations after 9/11 and was instrumental in getting Wall Street back up and running within a week.[35] The battalion also deployed in support of post-Katrina operations.

All of this work represents a significant investment in the nation's resources.

Water resources

See also: Army engineer diver

Removing a hazard to navigation on the Hudson River
The survey vessel Linthicum in a channel near Fort McHenry; the ball-diamond-ball day shape displayed indicates a vessel restricted in its ability to maneuver.

Through its Civil Works program, USACE carries out a wide array of projects that provide coastal protection, flood protection, hydropower, navigable waters and ports, recreational opportunities, and water supply.[36][37] Work includes coastal protection and restoration, including a new emphasis on a more holistic approach to risk management. As part of this work, USACE is the number one provider of outdoor recreation in the U.S., so there is a significant emphasis on water safety.[citation needed]

Army involvement in works "of a civil nature," including water resources, goes back almost to the origins of the U.S. Over the years, as the nation's needs have changed, so have the Army's Civil Works missions.[citation needed]

Major areas of emphasis include the following:


The Martis Creek Wetland Project in California

The U.S. Army Corps of Engineers environmental mission has two major focus areas: restoration and stewardship. The Corps supports and manages numerous environmental programs, that run the gamut from cleaning up areas on former military installations contaminated by hazardous waste or munitions to helping establish/reestablish wetlands that helps endangered species survive.[40] Some of these programs include Ecosystem Restoration, Formerly Used Defense Sites, Environmental Stewardship, EPA Superfund, Abandoned Mine Lands, Formerly Utilized Sites Remedial Action Program, Base Realignment and Closure, 2005, and Regulatory.

This mission includes education as well as regulation and cleanup.

The U.S. Army Corps of Engineers has an active environmental program under both its Military and Civil Programs.[40] The Civil Works environmental mission that ensures all USACE projects, facilities and associated lands meet environmental standards. The program has four functions: compliance, restoration, prevention, and conservation. The Corps also regulates all work in wetlands and waters of the United States.

The Military Programs Environmental Program manages design and execution of a full range of cleanup and protection activities:

A member of the Radiation Safety Support Team, wearing a hazmat suit, tests excavated soil.

The following are major areas of environmental emphasis:

See also Environmental Enforcement below.


The Army adopted a sustainability policy in the early 2000s to make military bases, and the force as a whole, more resilient and less dependent on fossil fuels. Since the US military is one of the world's largest institutional energy consumers, this would have a significant impact on reducing waste, improving efficiency, and ensuring that public resources are used effectively.[41]

The Army has developed and adopted its own triple bottom line framework shifting from the traditional "People Planet, and Profit" to "Mission, Community, and Environment". To meet these new sustainability targets, it has implemented regulations such as designing all new projects to meet the LEED silver standard. Additional regulations are detailed in the Sustainable Design and Development Policy.

The 2017 revision to the Sustainable Design and Development Policy outlines the updated goals and requirements the Army established in an effort to successfully complete the sustainability mission.[42] Most of these requirements result in stricter regulations on the planning, design and construction of new projects and major renovations:

Many of these goals fall directly onto USACE, as it oversees most construction and maintenance of Army bases and infrastructure. To embrace the branch's movement toward sustainability, USACE added sustainability as an overarching mission with several specific focus areas:

This challenge is not without its difficulties. The first report issued in 2008 showed that 78% of new projects were built to the LEED silver standard (without actually getting the certification) instead of the 100% required. In addition, there was an 8.4% and 32% reduction in energy use intensity and water use, respectively, and a 35% increase in hazardous waste production.[43]

Later reports show some improvement toward resilience and sustainability. The 2020 Sustainability Report and Implementation Plan show a further 12% reduction in water use as well as 35% total reduction in energy use intensity since 2003. Future projections show that USACE intends to continue to build on these focus areas and drive down its demands in areas such as fuel, electricity and water.[44]

Operational facts and figures

Summary of facts and figures as of 2007, provided by the Corps of Engineers:[28]

Environmental protection and regulatory program

The regulatory program is authorized to protect the nation's aquatic resources. USACE personnel evaluate permit applications for essentially all construction activities that occur in the nation's waters, including wetlands. Two primary authorities granted to the Army Corps of Engineers by Congress fall under Section 10 of the Rivers and Harbors Act and Section 404 of the Clean Water Act.

Section 10 of the Rivers and Harbors Act of 1899 (codified in Chapter 33, Section 403 of the United States Code) gave the Corps authority over navigable waters of the United States, defined as "those waters that are subject to the ebb and flow of the tide and/or are presently being used, or have been used in the past, or may be susceptible for use to transport interstate or foreign commerce." Section 10 covers construction, excavation, or deposition of materials in, over, or under such waters, or any work that would affect the course, location, condition or capacity of those waters. Actions requiring section 10 permits include structures (e.g., piers, wharfs, breakwaters, bulkheads, jetties, weirs, transmission lines) and work such as dredging or disposal of dredged material, or excavation, filling or other modifications to the navigable waters of the United States. The Coast Guard also has responsibility for permitting the erection or modification of bridges over navigable waters of the U.S.[citation needed]

Another of the major responsibilities of the Army Corps of Engineers is administering the permitting program under Section 404 of the Federal Water Pollution Control Act of 1972, also known as the Clean Water Act. The Secretary of the Army is authorized under this act to issue permits for the discharge of dredged and fill material in waters of the United States, including adjacent wetlands.[28] The geographic extent of waters of the United States subject to section 404 permits fall under a broader definition and include tributaries to navigable waters and adjacent wetlands. The engineers must first determine if the waters at the project site are jurisdictional and subject to the requirements of the section 404 permitting program. Once jurisdiction has been established, permit review and authorization follows a sequence process that encourages avoidance of impacts, followed by minimizing impacts and, finally, requiring mitigation for unavoidable impacts to the aquatic environment. This sequence is described in the section 404(b)(1) guidelines.

There are three types of permits issued by the Corps of Engineers: Nationwide, Regional General, and Individual. 80% of the permits issued are nationwide permits, which include 50 general type of activities for minimal impacts to waters of the United States, as published in the Federal Register. Nationwide permits are subject to a reauthorization process every 5 years, with the most recent reauthorization occurring in March, 2012. To gain authorization under a nationwide permit, an applicant must comply with the terms and conditions of the nationwide permit. Select nationwide permits require preconstruction notification to the applicable corps district office notifying them of his or her intent, type and amount of impact and fill in waters, and a site map. Although the nationwide process is fairly simple, corps approval must be obtained before commencing with any work in waters of the United States. Regional general permits are specific to each corps district office. Individual permits are generally required for projects that impact greater than 0.5 acres (2,000 m2) of waters of the United States. Individual permits are required for activities that result in more than minimal impacts to the aquatic environment.[citation needed]


The Corps of Engineers has two research organizations, the Engineer Research and Development Center (ERDC) and the Army Geospatial Center (AGC).

ERDC provides science, technology, and expertise in engineering and environmental sciences to support both military and civilian customers. ERCD research support includes:

AGC coordinates, integrates, and synchronizes geospatial information requirements and standards across the Army and provides direct geospatial support and products to warfighters. See also Geospatial Information Officer.


Main article: Corps Castle

The U.S. Army Corps of Engineers gold castle branch insignia, worn by engineer officers

The Corps of Engineers branch insignia, the Corps Castle, is believed to have originated on an informal basis. In 1841, cadets at West Point wore insignia of this type. In 1902, the Castle was formally adopted by the Corps of Engineers as branch insignia.[47] The "castle" is actually the Pershing Barracks at the United States Military Academy in West Point, New York.[48]

A current tradition was established with the "Gold Castles" branch insignia of General of the Army Douglas MacArthur, West Point Class of 1903, who served in the Corps of Engineers early in his career and had received the two pins as a graduation gift of his family. In 1945, near the conclusion of World War II, General MacArthur gave his personal pins to his Chief Engineer, General Leif J. Sverdrup. On 2 May 1975, upon the 200th anniversary of the Corps of Engineers, retired General Sverdrup, who had civil engineering projects including the landmark 17-mile (27 km)-long Chesapeake Bay Bridge-Tunnel to his credit, presented the Gold Castles to then-Chief of Engineers Lieutenant General William C. Gribble, Jr., who had also served under General MacArthur in the Pacific. General Gribble then announced a tradition of passing the insignia along to future Chiefs of Engineers, and it has been done so since.[49]


Civil works

Main article: U.S. Army Corps of Engineers civil works controversies

U.S. Secretary of the Army Francis J. Harvey (on right) discusses U.S. Army Corps of Engineers operations in New Orleans with Brigadier General Robert Crear, commander of the Mississippi Valley Division in 2006

Some of the Corps of Engineers' civil works projects have been characterized in the press as being pork barrel or boondoggles such as the New Madrid Floodway Project and the New Orleans flood protection.[50][51] 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 or provided questionable economic benefit such as the Mississippi River–Gulf Outlet in southeast Louisiana.[52] Faulty design and substandard construction have been cited in the failure of levees in the wake of Hurricane Katrina that caused flooding of 80% of the city of New Orleans.

Review of Corps of Engineers' projects has also been criticized for its lack of impartiality. The investigation of levee failure in New Orleans during Hurricane Katrina was sponsored by the American Society of Civil Engineers (ASCE) but funded by the Corps of Engineers and involved its employees.[53][54]

Corps of Engineers projects can be found in all 50 states,[55] and are specifically authorized and funded directly by Congress. Local citizen, special interest, and political groups lobby Congress for authorization and appropriations for specific projects in their area.[56]

Senator Russ Feingold and Senator John McCain sponsored an amendment requiring peer review of Corps projects to the Water Resources Development Act of 2006,[57] proclaiming "efforts to reform and add transparency to the way the U.S. Army Corps of Engineers receives funding for and undertakes water projects." A similar bill, the Water Resources Development Act of 2007, which included the text of the original Corps' peer review measure, was eventually passed by Congress in 2007, overriding Presidential veto.[58]

USACE civil works activities 2005

Military construction

A number of Army camps and facilities designed by the Corps of Engineers, including the former Camp O'Ryan in New York State, have reportedly had a negative impact on the surrounding communities. Camp O'Ryan, with its rifle range, has possibly contaminated well and storm runoff water with lead. This runoff water eventually runs into the Niagara River and Lake Ontario, sources of drinking water to millions of people. This situation is exacerbated by a failure to locate the engineering and architectural plans for the camp, which were produced by the New York District in 1949.[59][60]

Greenhouse whistleblower suit

Bunnatine "Bunny" Greenhouse, a formerly high-ranking official in the Corps of Engineers, won a lawsuit against the United States government in July 2011. Greenhouse had objected to the Corps accepting cost projections from KBR in a no-bid, noncompetitive contract. After she complained, Greenhouse was demoted from her Senior Executive Service position, stripped of her top secret security clearance, and even, according to Greenhouse, had her office booby-trapped with a trip-wire from which she sustained a knee injury. A U.S. District court awarded Greenhouse $970,000 in full restitution of lost wages, compensatory damages, and attorney fees.[61]


Notable personnel

See also



  1. ^ "Biography of Debra M. Lewis". Retrieved 8 October 2014.
  2. ^ "About -- Headquarters U.S. Army Corps of Engineers". Retrieved 12 January 2015.
  3. ^ a b "Headquarters U.S. Army Corps of Engineers".
  4. ^ Normand, Anna E.; Carter, Nicole T. (24 March 2021). Army Corps of Engineers: FY2021 Appropriations (Report). Congressional Research Service. p. 1. Retrieved 19 July 2021.
  5. ^ "Mission and Vision -- Headquarters U.S. Army Corps of Engineers".
  6. ^ a b c d The U.S. Army Corps of Engineers: A Brief History, U.S. Army Corps of Engineers Headquarters.
  7. ^ Wade, Arthur P. (2011). Artillerists and Engineers: The Beginnings of American Seacoast Fortifications, 1794-1815. CDSG Press. pp. 22–84. ISBN 978-0-9748167-2-2.
  8. ^ "Committee Reports". Archived from the original on 9 April 2013. Retrieved 18 March 2013.
  9. ^ "Headquarters U.S. Army Corps of Engineers > About > History > Brief History of the Corps > Improving Transportation".
  10. ^ Charting the Inland Seas: A History of the U.S. Lake Survey, Arthur M. Woodford, 1991
  11. ^ "Lake Survey". Retrieved 9 October 2012.
  12. ^ a b c d First Lieutenant Shaun Martin, "Confederate Engineers in the American Civil War," Engineer: The Professional Bulletin for Army Engineers. Technology Industry. U.S. Civil War Center
  13. ^ DeCredico, Mary (22 February 2018). "Confederate Impressment During the Civil War". Encyclopedia Virginia. Virginia Foundation for the Humanities. OCLC 298460602. Retrieved 18 April 2023.
  14. ^ Report of the Chief of Engineers, U.S. Army, 1918, United States army Chief of Engineers, (Washington, DC: Government Printing Office, 1918). Retrieved 26 May 2022.
  15. ^ USACE Office of History vignettes Archived 15 April 2008 at the Wayback Machine
  16. ^ Yung, Christopher D., Gators of Neptune: naval amphibious planning for the Normandy invasion, Annapolis, MD: Naval Institute Press, ISBN 1-59114-997-5 (2006), pp. 99–103
  17. ^ Beck, Alfred M., United States Army in World War 2: The Technical Services, Ch. 14: Preparing For D-Day Landings, CMH Pub. 10-22, Washington, D.C.: U.S. Government Printing Office (1985), p. 305
  18. ^ a b Whittaker, Wayne, "Tough Guys", Popular Mechanics, February 1943, Vol. 79 No. 2, pp. 41, 44-45
  19. ^ Bell, William Gardner, Commanding Generals and Chiefs of Staff, 1775–2005: Portraits & Biographical Sketches of the United States Army's Senior Officer (Washington, D.C.: Center of Military History, U.S. Army, 2006) Archived 22 April 2021 at the Wayback Machine. ISBN 0-16-072376-0.
  20. ^ Improving Transportation Archived 6 January 2012 at the Wayback Machine
  21. ^ Schwartz, Max (19 November 2021). "The birth of the Pan-American Highway in Costa Rica". Tico Times.
  22. ^ "Historical Vignette 113 - Hide the development of the atomic bomb". US Army Corps of Engineers Official Website. Retrieved 31 October 2012.
  23. ^ "Historical Vignette 034 - the Corps Built the Pentagon in 16 Months". US Army Corps of Engineers Official Website. Retrieved 31 October 2012.
  24. ^ smith, Jeffery Craig (1991). Mega-Project Construction Management: The Corps of Engineers and Bechtel Group in Saudi Arabia. MIT. p. 1. Archived from the original on 8 December 2019.
  25. ^ Mitchell, Ellen (28 March 2024). "Army Corps of Engineers to deploy 1,100 personnel to Baltimore". The Hill. Retrieved 29 March 2024.
  26. ^ "Headquarters". U.S. Army Corps of Engineers. Retrieved 22 October 2012.
  27. ^ "Map -- Headquarters U.S. Army Corps of Engineers". U.S. Army Corps of Engineers. Retrieved 27 April 2018.
  28. ^ a b c d e f g h i j k l m n o From Serving The Armed Forces and The Nation 2007 edition (October 2007), and data from the U.S. Army Corps of Engineers
  29. ^ "Honolulu District Corps of Engineers". Retrieved 9 October 2012.
  30. ^ Humphreys Engineer Center Support Activity (HECSA)
  31. ^ USACE Warfighting Mission webpage Archived 13 September 2008 at the Wayback Machine
  32. ^ Engineer Update Story on Iraqi Hydropower[permanent dead link]
  33. ^ USACE Homeland Security Mission webpage Archived 16 December 2008 at the Wayback Machine
  34. ^ USACE Infrastructure Mission webpage Archived 14 October 2008 at the Wayback Machine
  35. ^ "Engineer Magazine article "Disaster Relief"" (PDF). Archived from the original (PDF) on 24 June 2008. Retrieved 9 October 2012.
  36. ^ "USACE Institute for Water Resources: Programs Overview". Archived from the original on 17 June 2009. Retrieved 9 October 2012.
  37. ^ Carter, Nicole T. (1 June 2018). Army Corps of Engineers: Water Resource Authorization and Project Delivery Processes (PDF). Washington, DC: Congressional Research Service. Retrieved 5 June 2018.
  38. ^ Frittelli, John (1 June 2018). Prioritizing Waterway Lock Projects: Barge Traffic Changes (PDF). Washington, DC: Congressional Research Service. Retrieved 8 June 2018.
  39. ^ USACE History webpage Archived 19 March 2006 at the Wayback Machine
  40. ^ a b USACE Environmental Mission webpage Archived 18 December 2008 at the Wayback Machine
  41. ^ Karbuz, Sohbet (20 May 2007). "US military energy consumption- facts and figures". Resilience. Retrieved 17 December 2020.
  42. ^ "Army Sustainable Design and Development Policy Update" (PDF). Whole Building Design Guide.
  43. ^ Nastu, Jennifer (17 November 2008). "U.S. Army Releases First Sustainability Report - Big Move To LEED Standards". Environment + Energy Leader. Retrieved 17 December 2020.
  44. ^ "Sustainability Report and Implementation Plan 2020" (PDF). Office of the Federal Chief Sustainability Officer. U.S. Army Corps of Engineers. 30 June 2020. Archived from the original (PDF) on 2 March 2021. Retrieved 17 December 2020.
  45. ^ "Hydropower". Operations Division, Mobile District, US Army Corps of Engineers. Archived from the original on 9 January 2009. Retrieved 9 October 2012.
  46. ^ "Public Parks and Recreation". Infrastructure Report Card. Archived from the original on 25 February 2012. Retrieved 9 October 2012.
  47. ^ "Do You Know? The Corps Castle Can Be Found in Unusual Places?". Office of History, U.S. Army Corps of Engineers. Archived from the original on 29 March 2006. Retrieved 16 March 2006.
  48. ^ "Branch eBook". Military Science and Leadership. Archived from the original on 17 May 2011. Retrieved 9 October 2012.
  49. ^ "Do You Know? The History of the Chief of Engineers' Gold Castles?". Office of History, U.S. Army Corps of Engineers. Archived from the original on 11 January 2006.
  50. ^ Grunwald, Michael (2 August 2007). "The Threatening Storm - Hurricane Katrina - Two Years Later". Time. Archived from the original on 27 August 2007. Retrieved 9 October 2012.
  51. ^ St Louis Today, Missouri State News [dead link]
  52. ^ "Close the Mississippi River Gulf Outlef – The Hurricane Highway". Retrieved 9 October 2012.
  53. ^ Charpentier, Colley. "Critics of Corps investigation". Archived from the original on 25 July 2011. Retrieved 14 November 2022.
  54. ^ "IPET Leadership". Retrieved 16 January 2017.
  55. ^ "U.S. Army Corps of Engineers Home website". 25 September 2012. Retrieved 9 October 2012.
  56. ^ Army Corps of Engineers is Broken(See "Skewed Priorities")
  57. ^ Feingold, McCain, Coburn Work to Reform Army Corps of Engineers Archived 19 January 2008 at the Wayback Machine
  58. ^ Terry Baquet, The Times-Picayune. "Water bill passes despite Bush veto". Archived from the original on 8 September 2012. Retrieved 9 October 2012.
  59. ^ FOIA Request to the Army Corps of Engineers, New York District, "records pertaining to the former Camp O'Ryan site, previously the Wethersfield Range", 21 February 2007
  60. ^ "State of New York Annual Report of the Chief of Staff to the Governor for the Division of Military and Naval Affairs for the Year 1949 ", Karl F. Hausauer, Major General, N.Y.N.G., Chief of Staff to the Governor, 31 December 1949, pages 57–59
  61. ^ Davidson, Joe, "A Bittersweet Win for a Whistleblower", Washington Post, 27 July 2011, p. B4.
  62. ^ "Lineage Information". U.S. Army Center of Military History. Retrieved 22 May 2024.
  63. ^ Historical Vignette 079 – The Oldest U.S. Army Officer to Serve in World War II Was an Engineer
  64. ^ Charles Keller – Brigadier General, United States Army
  65. ^ Arlington National Cemetery, Arlington, Virginia

Further reading


General information