Water Resources Development Act (WRDA), is a reference to public laws enacted by Congress to deal with various aspects of water resources: environmental, structural, navigational, flood protection, hydrology, etc.

Typically, the United States Army Corps of Engineers administers the bulk of the Act's requirements.

There have been a series of WRDAs:

Water Resources Development Act of 1974, WRDA 1974, Pub. L.Tooltip Public Law (United States) 93–251
Water Resources Development Act of 1976, WRDA 1976, Pub. L.Tooltip Public Law (United States) 94–587
Water Resources Development Act of 1986, WRDA 1986, Pub. L.Tooltip Public Law (United States) 99–662 (WRDA86.pdf, via TaxPayer.net)
Water Resources Development Act of 1988, WRDA 1988, Pub. L.Tooltip Public Law (United States) 100–676
Water Resources Development Act of 1990, WRDA 1990, Pub. L.Tooltip Public Law (United States) 101–640
Water Resources Development Act of 1992, WRDA 1992, Pub. L.Tooltip Public Law (United States) 102–580
Water Resources Development Act of 1996, WRDA 1996, Pub. L.Tooltip Public Law (United States) 104–303 (text) (PDF)
Water Resources Development Act of 1999, WRDA 1999, Pub. L.Tooltip Public Law (United States) 106–53 (text) (PDF)
Water Resources Development Act of 2000, WRDA 2000, Pub. L.Tooltip Public Law (United States) 106–541 (text) (PDF)
Water Resources Development Act of 2007, WRDA 2007, Pub. L.Tooltip Public Law (United States) 110–114 (text) (PDF)
Water Resources Development Act of 2014, WRDA 2014, Pub. L.Tooltip Public Law (United States) 113–121 (text) (PDF)
Water Resources Development Act of 2016, WRDA 2016, included as part of the Water Infrastructure Improvements for the Nation Act (WIIN Act), Pub. L.Tooltip Public Law (United States) 114–322 (text) (PDF)
Water Resources Development Act of 2022, WRDA 2022, included as part of the James M. Inhofe National Defense Authorization Act for Fiscal Year 2023 (NDAA 2023).

Related acts

River and Harbor Act of 1938, Pub. L.Tooltip Public Law (United States) 75–685, June 20, 1938
Flood Control Act of 1938, Pub. L.Tooltip Public Law (United States) 75–761, June 28, 1938
River and Harbor Act of 1940, Pub. L.Tooltip Public Law (United States) 76–868, October 17, 1940
Flood Control Act of 1941, Pub. L.Tooltip Public Law (United States) 77–228, August 18, 1941
Flood Control Act of 1944, Pub. L.Tooltip Public Law (United States) 78–534, December 22, 1944
River and Harbor Act of 1945, Pub. L.Tooltip Public Law (United States) 79–14, March 2, 1945
River and Harbor Act of 1946, Pub. L.Tooltip Public Law (United States) 79–525, July 24, 1946
Flood Control Act of 1946, Pub. L.Tooltip Public Law (United States) 79–526, July 24, 1946
River and Harbor Act of 1948, Pub. L.Tooltip Public Law (United States) 80–858, June 30, 1948 (Flood Control Act of 1948)
River and Harbor Act of 1950, Pub. L.Tooltip Public Law (United States) 81–516, May 17, 1950 (Flood Control Act of 1950)
River and Harbor Act of 1954, Pub. L.Tooltip Public Law (United States) 83–780, September 3, 1954 (Flood Control Act of 1954)
River and Harbor Act of 1958, Pub. L.Tooltip Public Law (United States) 85–500, July 3, 1958 (Flood Control Act of 1958)
River and Harbor Act of 1960, Pub. L.Tooltip Public Law (United States) 86–645, July 14, 1960 (Flood Control Act of 1960)
River and Harbor Act of 1962, Pub. L.Tooltip Public Law (United States) 87–874, October 23, 1962 (Flood Control Act of 1962)
River and Harbor Act of 1965, Pub. L.Tooltip Public Law (United States) 89–298, October 27, 1965 (Flood Control Act of 1965)
River and Harbor Act of 1966, Pub. L.Tooltip Public Law (United States) 89–789, November 7, 1966 (Flood Control Act of 1966)
River and Harbor Act of 1968 (Flood Control Act of 1968)
River and Harbor Act of 1970, Pub. L.Tooltip Public Law (United States) 91–611, December 31, 1970 (Flood Control Act of 1970)
Flood Control Act of 1972, Pub. L.Tooltip Public Law (United States) 93–251, March 7, 1974

NEPA cases	United States v. SCRAP (1973) Metropolitan Edison Co. v. People Against Nuclear Energy (1983) Baltimore Gas & Electric Co. v. Natural Resources Defense Council (1983) Department of Transportation v. Public Citizen (2004) Norton v. Southern Utah Wilderness Alliance (2004) Winter v. Natural Resources Defense Council (2008) Monsanto Co. v. Geertson Seed Farms (2010)
CAA cases	Train v. Natural Resources Defense Council (1975) Chevron v. Natural Resources Defense Council (1984) Whitman v. American Trucking Associations (2001) Alaska Department of Environmental Conservation v. EPA (2004) Department of Transportation v. Public Citizen (2004) Massachusetts v. EPA (2007) Environmental Defense v. Duke Energy Corp. (2007) American Electric Power Co. v. Connecticut (2011) Utility Air Regulatory Group v. EPA (2014) Michigan v. EPA (2015) HollyFrontier Cheyenne Refining v. Renewable Fuels Association (2021) West Virginia v. EPA (2022)
RCRA cases	City of Philadelphia v. New Jersey (1978) Southern Union Co. v. United States (2012)
ESA cases	Tennessee Valley Authority v. Hill (1978) Lujan v. Defenders of Wildlife (1992) Babbitt v. Sweet Home Chapter of Communities for a Great Oregon (1995) National Association of Home Builders v. Defenders of Wildlife (2007) Weyerhaeuser Company v. United States Fish and Wildlife Service (2018) United States Fish and Wildlife Service v. Sierra Club (2021)
CWA cases	United States v. Riverside Bayview (1985) SWANCC v. Army Corps of Engineers (2001) South Florida Water Management District v. Miccosukee Tribe (2004) S. D. Warren Co. v. Maine Board of Environmental Protection (2006) Rapanos v. United States (2006) National Association of Home Builders v. Defenders of Wildlife (2007) Entergy Corp. v. Riverkeeper Inc. (2009) Coeur Alaska, Inc. v. Southeast Alaska Conservation Council (2009) Sackett v. EPA I (2012) Los Angeles County Flood Control District v. Natural Resources Defense Council (2013) Army Corps of Engineers v. Hawkes Co. (2016) National Association of Manufacturers v. Department of Defense (2018) County of Maui v. Hawaii Wildlife Fund (2020) Sackett v. EPA II (2023)
CERCLA cases	United States v. Bestfoods (1998) Guam v. United States (2021)

Major
federal legislation,
treaties,
and lower court
decisions

Yellowstone National Park Protection Act (1872)
Forest Service Organic Administration Act (1897)
Rivers and Harbors Act (1899)
- Refuse Act
Lacey Act (1900)
Weeks Act (1911)
North Pacific Fur Seal Convention of 1911 (1911)
Weeks–McLean Act (1913)
Migratory Bird Treaty Act (1918)
Clarke–McNary Act (1924)
Oil Pollution Act (1924)
McSweeney-McNary Act (1928)
Fish and Wildlife Coordination Act (1934)
Watershed Protection and Flood Prevention Act (1954)
Air Pollution Control Act (1955)
Fish and Wildlife Act (1956)
Oil Pollution Act (1961)
Clean Air Act (1963, 1970, 1977, 1990)
- Acid Rain Program
Scenic Hudson Preservation Conference v. Federal Power Commission (2nd Cir. Court of Appeals, 1965)
Solid Waste Disposal Act (1965)
Endangered Species Act (1969)
Environmental Quality Improvement Act (1970)
National Environmental Policy Act (1970)
Clean Water Act (1972, 1977, 1987, 2014)
Coastal Zone Management Act (1972)
- Coastal Zone Management Program
Federal Insecticide, Fungicide, and Rodenticide Act (1972)
Marine Protection, Research, and Sanctuaries Act (1972)
Noise Control Act (1972)
Endangered Species Act (1973)
Oil Pollution Act (1973)
Safe Drinking Water Act (1974, 1986, 1996)
Water Resources Development Act (1974, 1976, 1986, 1988, 1990, 1992, 1996, 1999, 2000, 2007, 2014, 2016, 2022)
Federal Noxious Weed Act (1975)
Hazardous Materials Transportation Act (1975)
Magnuson–Stevens Act (1976)
Resource Conservation and Recovery Act (1976)
Toxic Substances Control Act (1976)
Surface Mining Control and Reclamation Act (1977)
Uranium Mill Tailings Radiation Control Act (1978)
CERCLA (Superfund) (1980)
Emergency Planning and Community Right-to-Know Act (1986)
Emergency Wetlands Resources Act (1986)
Global Change Research Act (1990)
National Environmental Education Act (1990)
Oil Pollution Act (1990)
Alien Species Prevention and Enforcement Act of 1992
Food Quality Protection Act (1996)
Energy Policy Act (2005)
Energy Independence and Security Act (2007)
Coalition for Responsible Regulation, Inc. v. EPA (D.C. Cir. Court of Appeals, 2012)
Lautenberg Chemical Safety Act (2016)
America's Water Infrastructure Act (2018)
Infrastructure Investment and Jobs Act (2021)
Louisiana v. Biden (5th Cir. Court of Appeals, 2022)
CHIPS and Science Act (2022)
Inflation Reduction Act (2022)

Federal agencies

Regulations
and concepts

This article includes a list of related items that share the same name (or similar names).
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Related acts

See also