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86-602: The original bridge at this site was constructed of large cast iron pipes by the Army Corps of Engineers from 1858 to 1860. Montgomery C. Meigs designed the bridge and supervised its construction as part of the original construction of the Washington Aqueduct . It was officially named the Meigs Bridge after it was completed, although name that never caught on and it was often called other names such as

172-863: A state of emergency by the governor of the state or territory where they serve, or in the case of Washington, D.C., by the Commanding General. Unlike U.S. Army Reserve members, National Guard members cannot be mobilized individually, except through voluntary transfers and Temporary Duty Assignments (TDY). The types of activation are as follows: law enforcement; others as determined by governor civil support; law enforcement; counter drug; WMD response; expeditionary missions; civil support and law enforcement Oklahoma City bombing ; Kansas tornadoes ; California wildfires ; various hurricanes post- 9/11 airport security; SLC Olympics ; Hurricane Katrina Cuba; Iraq; 1992 Los Angeles riots The term "activated" simply means that

258-569: 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. That same year, Congress passed an "Act to Improve

344-469: 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. There are several other organizations within the Corps of Engineers: USACE provides support directly and indirectly to the warfighting effort. They build and help maintain much of the infrastructure that

430-537: A federally-funded mission under Title 32 ("National Guard"). Outside federal activation, the Army and Air National Guard may be activated under state law. This is known as state active duty (SAD). When National Guard units are not under federal control, the governor is the commander-in-chief of the units of his or her respective state or territory (such as Puerto Rico, Guam and the Virgin Islands). The President of

516-463: A hand-selected unit of volunteer Army combat engineers trained in jungle warfare, knife fighting, and unarmed jujitsu ( hand-to-hand combat ) techniques. Working in camouflage, the Pioneers cleared jungle, prepared routes of advance and established bridgeheads for the infantry, as well as demolishing enemy installations. Five commanding generals (chiefs of staff after the 1903 reorganization) of

602-454: 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. In 1944, specially trained army combat engineers were assigned to blow up underwater obstacles and clear defended ports during

688-455: 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. 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. Major areas of emphasis include

774-578: 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. 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. More than 67 percent of

860-567: A unit or individual of the reserve components has been placed on orders. The purpose and authority for that activation determine limitations and duration of the activation. The Army and Air National Guard may be activated in a number of ways as prescribed by public law. Broadly, under federal law, there are two titles in the United States Code under which units and troops may be activated: as federal soldiers or airmen under Title 10 ("Armed Forces") and as state soldiers or airmen performing

946-434: A week. The battalion also deployed in support of post-Katrina operations. All of this work represents a significant investment in the nation's resources. 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. Work includes coastal protection and restoration, including

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1032-604: Is a military reserve force composed of National Guard military members or units of each state and the territories of Guam , the Virgin Islands , Puerto Rico , and the District of Columbia , for a total of 54 separate organizations. It is officially created under Congress's Article 1 Section 8 ability to "raise and support armies". All members of the National Guard are also members of the organized militia of

1118-800: Is either an Army or an Air Force four-star general officer , and is the senior uniformed National Guard officer, and is a member of the Joint Chiefs of Staff. In this capacity, he serves as a military adviser to the President, the Secretary of Defense, the National Security Council and is the Department of Defense's official channel of communication to the Governors and to State Adjutants General on all matters pertaining to

1204-793: Is given the power to pass laws for "calling forth the Militia to execute the Laws of the Union, suppress Insurrections and repel Invasions." Congress is also empowered to come up with the guidelines "for organizing, arming, and disciplining, the Militia, and for governing such Part of them as may be employed in the Service of the United States, reserving to the States respectively, the Appointment of

1290-804: Is headed by the Chief of the National Guard Bureau (CNGB), who is a four-star general in the Army or Air Force and is a member of the Joint Chiefs of Staff . The National Guard Bureau is headquartered in Arlington County, Virginia, and is a joint activity of the Department of Defense to conduct all the administrative matters pertaining to the Army National Guard and the Air National Guard . The chief

1376-500: 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. 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

1462-505: 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. The Corps of Engineers headquarters is located in Washington, D.C. The headquarters staff

1548-597: Is the case in the National Guard, a state must meet specific requirements such as having a set percentage of its members in the federal reserves. 10 U.S.C.   § 7851 . National Guard units can be mobilized for federal active duty to supplement regular armed forces during times of war or national emergency declared by Congress, the President or the Secretary of Defense . They can also be activated for service in their respective states upon declaration of

1634-545: The British colonization of the Americas from the 17th century onward. The first colony-wide militia was formed by Massachusetts in 1636 by merging small, older local units, and several National Guard units can be traced back to this militia. The various colonial militias became state militias when the United States became independent. The title "National Guard" was used in 1824 by some New York State militia units, named after

1720-465: The Committee on the Militia , sponsored the 1903 Dick Act towards the end of the 57th U.S. Congress . Under this legislation, passed 21 January 1903, the organized militia of the states were given federal funding and required to conform to Regular Army organization within five years. The act also required National Guard units to attend twenty four drills and five days annual training a year, and, for

1806-696: 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. The CoE conducts its emergency response activities under two basic authorities — the Flood Control and Coastal Emergency Act ( Pub. L.   84–99 ), and the Stafford Disaster Relief and Emergency Assistance Act ( Pub. L.   93–288 ). In

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1892-735: The French National Guard in honor of the Marquis de Lafayette . "National Guard" became a standard nationwide militia title in 1903, and has specifically indicated reserve forces under mixed state and federal control since 1933. On December 13, 1636, the first militia regiments in North America were organized in Massachusetts. Based upon an order of the Massachusetts Bay Colony's General Court ,

1978-1115: The Guam Air National Guard . Both the Army National Guard and Air National Guard are expected to adhere to the same moral and physical standards as their "full-time" active duty and "part-time" reserve federal counterparts. The same ranks and insignia of the U.S. Army and U.S. Air Force are used by the Army National Guard and the Air National Guard, respectively, and National Guard members are eligible to receive all United States military awards . The respective state National Guards also bestow state awards for services rendered both at home and abroad. Under Army and Air Force regulations, these awards may be worn while in state, but not federal, duty status. Regular Army and Army Reserve soldiers are also authorized to accept these awards, but are not authorized to wear them. Many states also maintain their own state defense forces . Although not federal entities like

2064-719: The Militia Act of 1903 . They were now subject to an increasing amount of federal control, including having arms and accoutrements supplied by the central government, federal funding, and numerous closer ties to the Regular Army. Proposals for the establishment of a National Guard component for the United States Space Force has existed for years, even as early as 2018. A report by the Congressional Budget Office indicated that

2150-702: The National Defense Act of 1916 , which required the use of the term "National Guard" for the state militias and further regulated them. Congress also authorized the states to maintain Home Guards , which were reserve forces outside the National Guards deployed by the federal government. In 1933, with the passage of the National Guard Mobilization Act, Congress finalized the split between the National Guard and

2236-402: The Secretary of the Army . In 1956, Congress finally revised the law and authorized "State defense forces" permanently under Title 32, Section 109, of the United States Code. Although there are no Naval or Marine Corps components of the National Guard of the United States, there is a Naval Militia authorized under federal law. 10 U.S.C.   § 8901 . Like the soldiers and airmen in

2322-672: The Tubular Bridge . At its construction, it was the only bridge made entirely of cast iron of substantial size in the United States. It was initially intended to be solely an aqueduct bridge carrying water mains connected to the Georgetown Reservoir , but the onset of the Civil War necessitated making it a vehicular crossing as well. The level of traffic was such that the wooden deck had to be replaced every three years. The bridge used an innovative design in which

2408-675: 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 . 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

2494-598: The collapse of the Francis Scott Key Bridge in Baltimore provide other examples of this. 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

2580-602: The 48-inch water pipes themselves formed the load-bearing arches of the bridge supporting the roadway. A water pressure engine in the west abutment supplied water to a reservoir at the current site of the Georgetown branch of the D. C. Public Library to feed the significant part of the City of Georgetown that was too high to be directly fed by the main Washington Aqueduct. A horse-drawn streetcar line crossed

2666-521: 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. Both sides recognized the critical work of engineers. On 6 March 1861, once the South had seceded from

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2752-619: The Army National Guard and Air National Guard, plus Army Reserve Technicians in the Army National Guard and Air Reserve Technicians (ART) in the Air National Guard. The National Guard is a joint activity of the United States Department of Defense (DoD) composed of reserve components of the United States Army and the United States Air Force : the Army National Guard and the Air National Guard , respectively. Colonial militias were formed during

2838-631: The Army and Air Force under the Department of Defense . The National Guard Bureau provides a communication channel for state National Guards to the DoD. The National Guard Bureau also provides policies and requirements for training and funds for state Army National Guard and state Air National Guard units, the allocation of federal funds to the Army National Guard and the Air National Guard, and other administrative responsibilities prescribed under 10 U.S.C.   § 10503 . The National Guard Bureau

2924-458: 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

3010-486: The Army's structure. The National Guard of the several states, territories, and the District of Columbia serves as part of the first line of defense for the United States. The state National Guard is organized into units stationed in each of the 50 states, three territories, and the District of Columbia, and operates under their respective state or territorial governor , except in the instance of Washington, D.C. , where

3096-480: The Constitution recognized the existing state militias, and gave them vital roles to fill: "to execute the Laws of the Union, suppress Insurrections and repel Invasion." (Article I, Section 8, Clause 15). The Constitution distinguished "militias," which were state entities, from "Troops," which were unlawful for states to maintain without Congressional approval. (Article I, Section 10, Clause 3). Under current law,

3182-797: 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

3268-603: 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

3354-950: The HQ. Within each division, there are several districts. Districts are defined by watershed boundaries for civil works projects and by political boundaries for military projects. 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,

3440-835: The National Guard of the United States, members of the Naval Militia are authorized federal appointments or enlistments at the discretion of the Secretary of the Navy . 10 U.S.C.   § 7852 . To receive federal funding and equipment, a state naval militia must be composed of at least 95% of Navy, Coast Guard, or Marine Corps Reservists. As such, some states maintain such units. Some states also maintain naval components of their State Defense Force. Recently, Alaska , California, New Jersey , New York, South Carolina , Texas and Ohio have had or currently maintain naval militias . Other states have laws authorizing them but do not currently have them organized. To receive federal funding, as

3526-435: The National Guard of the United States, these forces are components of the state militias like the individual state National Guards. These forces were created by Congress in 1917 as a result of the state National Guards' being deployed and were known as Home Guards. In 1940, with the onset of World War II and as a result of its federalizing the National Guard, Congress amended the National Defense Act of 1916 , and authorized

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3612-479: The National Guard operates under the President of the United States or their designee. The governors exercise control through the state adjutants general . Governors may call up the National Guard for active duty to help respond to domestic emergencies and disasters, such as hurricanes, floods, and earthquakes. The National Guard is administered by the National Guard Bureau , a joint activity of

3698-501: The National Guard. He is responsible for ensuring that the more than half a million Army and Air National Guard personnel are accessible, capable, and ready to protect the homeland and to provide combat resources to the Army and the Air Force. He is appointed by the President in his capacity as Commander in Chief . The respective state National Guards are authorized by the Constitution of the United States . As originally drafted,

3784-661: 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. 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

3870-516: The Officers, and the Authority of training the Militia according to the discipline prescribed by Congress" (clause 16). The President of the United States is the commander-in-chief of the state militias "when called into the actual Service of the United States." (Article II, Section 2). The traditional state militias were redefined and recreated as the "organized militia"—the National Guard, via

3956-527: The U.S., as well as a wide range of public works throughout the world. 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). 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

4042-479: The Union, its legislature passed an act to create a Confederate Corps of Engineers. 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. The Confederate Congress passed legislation that authorized a company of engineers for every division in

4128-420: The United States as defined by 10 U.S.C.   § 246 . National Guard units are under the dual control of state governments and the federal government. The majority of National Guard soldiers and airmen hold a civilian job full-time while serving part-time as a National Guard member. These part-time guardsmen are augmented by a full-time cadre of Active Guard & Reserve (AGR) personnel in both

4214-479: The United States commands the District of Columbia National Guard, though this command is routinely delegated to the Commanding General of the DC National Guard. States are free to employ their National Guard forces under state control for state purposes and at state expense as provided in the state's constitution and statutes. In doing so, governors, as commanders-in-chief, can directly access and utilize

4300-537: The United States maintained only a minimal army and relied on state militias, directly related to the earlier Colonial militias to supply the majority of its troops. As a result of the Spanish–American War , Congress was called upon to reform and regulate state militias' training and qualification. U.S. Senator Charles W. F. Dick , a Major General in the Ohio National Guard and the chair of

4386-453: The United States. The Military Programs Environmental Program manages design and execution of a full range of cleanup and protection activities: The following are major areas of environmental emphasis: United States National Guard The National Guard is a state-based military force that becomes part of the U.S. military's reserve components of the U.S. Army and the U.S. Air Force when activated for federal missions. It

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4472-401: The arch design would clash with the existing Q Street Bridge upstream, but their recommendations were ignored. The expanded bridge was built of reinforced concrete with a smooth granite facing. The abutments and water mains of the original bridge are encased inside the expanded bridge, which still transports water to this day, although they no longer support the bridge's load. The new bridge

4558-440: The bridge from 1863 to 1872, when it was rerouted over the nearby M Street Bridge . In 1913, the D.C. Board of Commissioners opted to build an expanded arch bridge around the existing bridge rather than construct a completely new steel-girder bridge for cost reasons. The United States Commission of Fine Arts , the agency tasked with reviewing architectural projects in the capital, opposed the plan on aesthetic grounds, saying that

4644-501: The colony's militia was organized into three permanent regiments to better defend the colony. Today, the descendants of these first regiments - the 181st Infantry , the 182nd Infantry , the 101st Field Artillery , and the 101st Engineer Battalion of the Massachusetts Army National Guard – share the distinction of being the oldest units in the U.S. military. December 13, 1636, thus marks the beginning of

4730-400: The cost of the creation of a larger Space National Guard, which would be ~33% of the Space Force, calculating that the annual operating cost would be $ 385 million to $ 490 million per year. However, several states already have existing National Guard space operations, including Alaska , California , Colorado , Florida , New York , Arkansas , and Ohio ; there is also a space component in

4816-487: 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

4902-440: The creation of a Space National Guard, as proposed by the National Guard Bureau, would cost an additional $ 100 million per year in operations and support costs, with a onetime cost of $ 20 million in the construction of new facilities. This report directly contradicted the statement by the National Guard Bureau that a Space National Guard would only have a onetime cost at creation, and then be cost-neutral. The report also analyzed

4988-456: The economy and reduce risks from disasters." Its most visible civil works missions include: 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. Colonel Richard Gridley became General George Washington 's first chief engineer. One of his first tasks

5074-618: The expedition's supplies while their leader, Pedro Menéndez de Avilés , took the regular troops north to attack the French settlement at Fort Caroline on the St. Johns River . This Spanish militia tradition and the tradition that was established in England's North American colonies provided the basic nucleus for Colonial defense in the New World. The militia tradition continued with the New World's first permanent English settlements. Jamestown Colony (established in 1607) and Plymouth Colony (established in 1620) both had militia forces, which initially consisted of every able-bodied adult male. By

5160-548: The field; by 1865, the CSA had more engineer officers serving in the field of action than the Union Army. 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, built fortifications that were used both offensively and defensively, along with trenches that made them harder to penetrate. This method of building trenches

5246-479: The first time, provided for pay for annual training. In return for the increased federal funding which the act made available, militia units were subject to inspection by Regular Army officers, and had to meet certain standards. It required the states to divide their militias into two sections. The law recommended the title "National Guard" for the first section, known as the organized militia, and "Reserve Militia" for all others. During World War I , Congress passed

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5332-1120: The following: 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. 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. 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

5418-586: 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

5504-412: The invasion of Normandy. 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,

5590-403: The mid-1600s every town had at least one militia company (usually commanded by an officer with the rank of captain), and the militia companies of a county formed a regiment (usually commanded by an officer with the rank of major in the 1600s or a colonel in the 1700s). The first federal laws regulating the militia were the Militia acts of 1792 . From the nation's founding through the early 1900s,

5676-578: The mid-19th century, Corps of Engineers' officers ran Lighthouse Districts in tandem with U.S. Naval officers. 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 . The versatility of officers in

5762-491: The military construction mission on 1 December 1941, after the Quartermaster Department struggled with the expanding mission, 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

5848-410: 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

5934-480: 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

6020-440: 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 km ) of water storage, making it one of the United States' largest water supply agencies. The 249th Engineer Battalion (Prime Power) ,

6106-415: 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

6192-492: The organized militia, and the birth of the National Guard's oldest organized units is symbolic of the founding of all the state, territory, and District of Columbia militias that collectively make up today's National Guard. Previous to this, unregulated militias were mustered sporadically in Spanish and English colonies. On September 16, 1565, in the newly established Spanish town of St. Augustine , militia were assigned to guard

6278-591: 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

6364-677: The respective state National Guards and the State Defense Forces are authorized by Congress to the states and are referred to as "troops." 32 U.S.C.   § 109 . Although originally state entities, the Constitutional "Militia of the Several States" were not entirely independent because they could be federalized. According to Article I, Section 8; Clause 15, the United States Congress

6450-637: The states to maintain "military forces other than National Guard." This law authorized the War Department to train and arm the new military forces that became known as State Guards. In 1950, with the outbreak of the Korean War and at the urging of the National Guard, Congress reauthorized the separate state military forces for a time period of two years. These state military forces were authorized military training at federal expense, and "arms, ammunition, clothing, and equipment," as deemed necessary by

6536-800: 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

6622-513: The traditional state militias by mandating that all federally funded soldiers take a dual enlistment/commission and thus enter both the state National Guard and the National Guard of the United States, a newly created federal reserve force. The National Defense Act of 1947 created the Air Force as a separate branch of the Armed Forces and concurrently created the Air National Guard of the United States as one of its reserve components, mirroring

6708-574: 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. Prior to their respective troop withdrawals in 2021, this included support for rebuilding Iraq , establishing infrastructure in Afghanistan , and supporting international and inter-agency services. In addition,

6794-474: 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. USACE supports the United States' Department of Homeland Security and

6880-503: 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

6966-645: 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

7052-597: 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 . 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

7138-589: Was known as the zigzag pattern. 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. 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

7224-775: 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 . 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. In

7310-563: Was significantly wider than the original; increasing from 17 feet to 73 feet. By 2015, the bridge was considered structurally deficient, with a 15-month rehabilitation planned for summer. United States Army Corps of Engineers The United States Army Corps of Engineers ( USACE ) is the military engineering branch of the United States Army . A direct reporting unit (DRU), it has three primary mission areas: Engineer Regiment , military construction , and civil works . USACE has 37,000 civilian and military personnel, making it one of

7396-653: 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

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