Dam Safety Regulation (Mississippi)

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Last modified on February 12, 2015.

EZFeed Policy

Place Mississippi

Applies to States or Provinces Mississippi
Name Dam Safety Regulation (Mississippi)
Policy Category Other Policy
Policy Type Environmental Regulations, Siting and Permitting
Affected Technologies Coal with CCS, Hydroelectric, Hydroelectric (Small)
Active Policy Yes

Implementing Sector State/Province

Program Administrator Mississippi Department of Environmental Quality
Primary Website http://www.deq.state.ms.us/MDEQ.nsf/page/L&W_Dam_Safety
Applicable Jurisdiction Statewide

Last Review 2014-06-06
Last Substantive Modification
to Summary

Information Source http://www.deq.state.ms.us/mdeq.nsf/pdf/legal_11Miss.Admin.CodePt.7Ch.3./$File/11%20Miss.%20Admin.%20Code%20Pt.%207%20Ch.%203..pdf?OpenElement


The purpose of the Dam Safety Regulation is to ensure that all dams constructed in the state of Mississippi are permitted and thus do not potentially harm wildlife, water supplies and property. Any person or entity proposing to construct, enlarge, repair, or alter a dam or reservoir must obtain written permission from the Permit Board prior to commencement of any site work related to the project. The Permit Board may require any information necessary to evaluate a proposal. Any person intending to acquire the right to store or use water from a reservoir formed by a dam shall submit an application for a surface water use permit to the Mississippi Department of Environmental Quality in accordance with Mississippi Code Annotated, Sections 51-3-5 and 51-3-7, and the regulations of the Commission promulgated thereunder. Within 30 days after completion of a dam, the owner shall submit 1 complete set of as-built plans and specifications to the board. The submittal shall include a letter by the professional engineer responsible for the project.

High Hazard Dams are classified by dams in which failure may cause loss of life, serious damage to residential, industrial, or commercial buildings; or damage to, or disruption of, important public utilities or transportation facilities such as major highways or railroads. Dams that are proposed for construction in established or proposed residential, commercial, or industrial areas will be given a High Hazard classification. Most projects carried out for energy generation will be high hazard.

A surface water permit may also be required for any person to impound and store water behind a dam. Any changes to the dam must be immediately reported to the MDEQ. The owner shall perform a visual inspection every 60 days and after every major rainfall event over the watershed.

Policy Contact

Department Mississippi Department of Environmental Quality
Division Dam Safety
Address Mississippi Department of Environmental Quality Office of Land and Water Resources, P.O. Box 2309, Jackson, MS, 39225


Authorities (Please contact the if there are any file problems.)

Authority 1: Mississippi Code Sections 49-17-31, 49-17-33, 49-17-35, 49-17-37, 49-17-41
Date Effective 2005-08-25

Authority 2: Mississippi Code Sections 51-3-49, 51-3-51, and 51-3-55