Mississippi Levee Board

Mississippi Levee Board
Name	Mississippi Levee Board
Formation	19th century
Type	State agency
Purpose	Flood control, levee management, riverbank stabilization
Headquarters	Vicksburg, Mississippi
Region served	Mississippi Delta, Yazoo Basin
Leader name	Board of commissioners

Mississippi Levee Board is a state-level entity responsible for managing levees, floodways, and related infrastructure along the Mississippi River and its tributaries in Mississippi. It operates within a network of federal, state, and local authorities including the United States Army Corps of Engineers, National Weather Service, and county drainage districts. The board's activities intersect with major projects, events, lawsuits, and legislation influencing the Lower Mississippi Valley, Mississippi Delta, and adjacent parishes and counties.

History

The origins of the board trace to 19th-century responses to catastrophic floods on the Great Mississippi Flood of 1927 and earlier upriver events such as the New Madrid earthquakes aftermath and the Flood of 1844. Its institutional development paralleled the rise of the U.S. Army Corps of Engineers’s Mississippi River Commission and state drainage efforts in locations like Vicksburg, Mississippi and Jackson, Mississippi. Throughout the 20th century the board coordinated with federal programs under the Flood Control Act of 1928 and later amendments influenced by responses to Hurricane Katrina and riverine flooding near Greenville, Mississippi, Clarksdale, Mississippi, and the Yazoo River. Legal and political disputes involved parties such as the United States Department of Agriculture agencies, regional levee districts, and utilities companies during episodes including levee breaches and emergency evacuation orders.

Organization and Governance

The board is governed by a commission or board of commissioners representing counties such as Bolivar County, Mississippi, Washington County, Mississippi, and Sunflower County, Mississippi. It coordinates with state agencies like the Mississippi Department of Transportation and local entities including county supervisors and drainage districts. Interactions with federal entities include the United States Army Corps of Engineers, the Federal Emergency Management Agency, and the Bureau of Reclamation for technical planning and emergency response. Governance frameworks reference state statutes enacted by the Mississippi Legislature and case law from state courts such as the Mississippi Supreme Court. Partnerships often involve non-governmental stakeholders such as the Nature Conservancy and regional port authorities including the Port of Vicksburg.

Levee System and Infrastructure

The board maintains earthen levees, floodwalls, pumping stations, drainage canals, and tieback structures along corridors adjacent to the Mississippi River, the Yazoo River, and tributaries like the Coldwater River. Key infrastructure links to the Old River Control Structure conceptually through regional flood management plans developed with the Mississippi River and Tributaries Project. Stations near communities such as Vicksburg, Greenville, Mississippi, Clarksdale, and Natchez, Mississippi face sedimentation and bank erosion challenges analogous to issues at Memphis, Tennessee and New Orleans, Louisiana. Engineering practices reflect standards from the American Society of Civil Engineers and historical lessons from projects like the Bonnet Carré Spillway and the Bird's Point-New Madrid Floodway.

Flood Control Operations

Operational duties encompass flood forecasting, levee inspection, emergency levee repairs, operation of pumping stations, and coordination with the National Weather Service river forecast centers. The board implements contingency plans informed by precedent events such as the Mississippi River floods of 1973 and the Great Flood of 1993. During high-water events it works with the U.S. Army Corps of Engineers on staged releases, spillway activations, and controlled flooding in designated areas, often invoking coordination with interstate counterparts in Arkansas, Louisiana, and Tennessee. Operational communications involve state emergency management agencies like the Mississippi Emergency Management Agency and federal partners such as FEMA for evacuations, disaster declarations, and mitigation funding.

Funding and Legal Authority

Funding sources include state appropriations from the Mississippi Legislature, local levies and assessments across counties like Bolivar County, matching funds from federal programs under the Flood Control Act of 1944 and subsequent congressional appropriations, and grants administered through agencies such as FEMA and the U.S. Army Corps of Engineers. Legal authority derives from enabling statutes passed by the Mississippi Legislature and contracts or memoranda of understanding with the United States Army Corps of Engineers and county levee districts. Litigation over levee responsibilities and takings has involved courts including the United States Court of Federal Claims and the Mississippi Supreme Court, with precedent from broader water law disputes and eminent domain cases.

Notable Projects and Events

Notable initiatives include levee construction and rehabilitation after the Great Mississippi Flood of 1927, modernization projects tied to the Mississippi River and Tributaries Project, emergency responses during the Floods of 2011 and Katrina supplements, and participation in coordinated activations of structures analogous to the Bonnet Carré Spillway and Bird's Point-New Madrid Floodway. The board has been central to regional debates over river diversions, sediment management affecting the Mississippi River Delta, and economic impacts to river ports like the Port of Greenville, Mississippi and Port of Vicksburg. High-profile incidents included levee breaches requiring joint response with the USACE and federal disaster declarations endorsed by successive Governors of Mississippi.

Category:Mississippi water infrastructure Category:Flood control in the United States Category:Organizations based in Vicksburg, Mississippi