Mortimer Dam Reservoir Report
Last Updated: December 5, 2025
Mortimer Dam, located in Montgomery, Mississippi, is a privately owned earth dam primarily used for recreation purposes.
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Summary
Completed in 1992, the dam stands at a height of 15 feet and has a maximum storage capacity of 125 acre-feet. The dam's low hazard potential and moderate risk assessment make it a relatively safe structure in the event of an emergency.
Managed by the Mississippi Department of Environmental Quality, Mortimer Dam is regulated, inspected, and enforced by state authorities to ensure its safety and compliance with environmental standards. The dam controls the flow of the UNT of Hayes Creek, with a spillway type listed as uncontrolled. The surrounding area offers a surface area of 17 acres and a drainage area of 0.16 square miles, providing a serene setting for outdoor activities and water resource enthusiasts.
For water resource and climate enthusiasts, Mortimer Dam presents an intriguing case study in dam management and recreational use. Its location in a picturesque setting, combined with its relatively low hazard potential and moderate risk assessment, make it a noteworthy structure for those interested in the intersection of water management, recreation, and environmental stewardship in the state of Mississippi.
Year Completed |
1992 |
Dam Height |
15 |
River Or Stream |
UNT OF HAYES CREEK |
Primary Dam Type |
Earth |
Surface Area |
17 |
Hydraulic Height |
13 |
Drainage Area |
0.16 |
Nid Storage |
125 |
Hazard Potential |
Low |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Batupan Bogue At Grenada
|
134cfs |
Big Black River At West
|
223cfs |
Yalobusha River At Grenada
|
3080cfs |
Tallahatchie River At Money
|
6080cfs |
Yockanookany River Nr Kosciusko
|
45cfs |
Abiaca Creek At Cruger
|
44cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Mortimer Dam