Hilldale Dam Reservoir Report
Last Updated: December 18, 2025
Hilldale Dam, located in Warren, Mississippi, on the Hatcher Bayou, is a local government-owned structure built in 1993 for various purposes, including flood control and water resource management.
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Summary
The dam stands at a height of 20 feet, with a hydraulic height of 16 feet and a length of 340 feet. With a storage capacity of 64 acre-feet and a surface area of 3.65 acres, the dam plays a crucial role in regulating water flow and preventing potential hazards in the area.
Managed by the Mississippi Department of Environmental Quality, Hilldale Dam is classified as an earth dam with a buttress core type. Despite having a low hazard potential, the dam is considered to have moderate risk, with a risk assessment rating of 3. While the condition of the dam is currently not rated, it undergoes regular state inspections, permitting, and enforcement to ensure its structural integrity and safety. The dam's uncontrolled spillway type and moderate discharge capacity of 606 cubic feet per second further highlight its importance in managing water flow and mitigating potential risks in the region.
Overall, Hilldale Dam serves as a vital infrastructure for water resource management and climate resilience in Warren County, Mississippi. With its strategic location and design features, the dam plays a significant role in protecting the surrounding areas from flooding, while also contributing to the overall water security and environmental sustainability of the region. As a key asset for local government and state agencies, Hilldale Dam embodies the importance of proactive dam management and risk assessment in ensuring the safety and resilience of water infrastructure in the face of changing climate conditions.
Year Completed |
1993 |
Dam Length |
340 |
Dam Height |
11 |
River Or Stream |
HATCHER BAYOU |
Primary Dam Type |
Earth |
Surface Area |
3.65 |
Hydraulic Height |
16 |
Drainage Area |
0.69 |
Nid Storage |
64 |
Structural Height |
20 |
Hazard Potential |
Low |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Big Black River Nr Bovina
|
457cfs |
Mississippi River At Vicksburg
|
241000cfs |
Bayou Pierre Nr Willows
|
111cfs |
Big Black River Nr Bentonia
|
385cfs |
Lynch Creek At Jackson
|
1100cfs |
Tensas River At Tendal
|
18cfs |
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.
Hilldale Dam