Grenada Dam - Coffeeville Levee Reservoir Report

Last Updated: December 5, 2025

The Grenada Dam - Coffeeville Levee in Mississippi was constructed in 1985 by the US Army Corps of Engineers to primarily reduce the risk of flooding in the surrounding area.


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Summary

The levee, built with stone core and soil foundation, stands at a height of 17 feet and spans a length of 8976 feet. While the risk of failure is classified as very low, the potential for extreme weather events causing the Grenada Lake Reservoir to overflow and flood Coffeeville remains a concern.

In the event of a breach or failure of the Coffeeville Levee, homes, roads, and infrastructure in Coffeeville could be inundated by floodwaters, extending towards Tennessee Street and MS Hwy 7. To mitigate risks, the USACE closely monitors pool levels in the reservoir, coordinates with weather and emergency management agencies, and conducts regular inspections. In partnership with local and state officials, emergency response plans are in place to ensure timely actions are taken during high-water events. It is crucial for residents to follow evacuation orders and stay informed to safeguard against potential flooding risks.

Year Completed

1985

Dam Length

8976

Dam Height

11

River Or Stream

Turkey and Durden Creek

Primary Dam Type

Earth

Hydraulic Height

13

Structural Height

17

Outlet Gates

Flap - 2, Slide (sluice gate) - 4

Hazard Potential

Low

Foundations

Soil

Nid Height

17
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.