Abiaca Watershed Structure Y-34-03 Dam Reservoir Report
Last Updated: December 9, 2025
The Abiaca Watershed Structure Y-34-03 Dam, also known as Ellis Dam #1, is a crucial water resource in Mississippi that serves the primary purpose of flood risk reduction.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1965 by the USDA NRCS, this earth dam stands at a structural height of 39 feet and has a hydraulic height of 30 feet. With a normal storage capacity of 35 acre-feet and a maximum storage of 298 acre-feet, the dam plays a key role in managing water levels and protecting the surrounding area from potential flooding.
Located in Carroll County, Mississippi, along the TR- Coila Creek, the Abiaca Watershed Structure Y-34-03 Dam is monitored and regulated by the MS Department of Environmental Quality. Despite its high hazard potential and poor condition assessment, the dam has undergone regular inspections, with the last assessment conducted in September 2019. With an inspection frequency of 5 years, the dam's risk assessment is classified as moderate (3), highlighting the importance of ongoing maintenance and risk management measures to ensure its continued effectiveness in flood control.
In the event of an emergency, it is essential for local government officials and residents in the area to be aware of the dam's status and have a clear emergency action plan (EAP) in place. While the dam currently lacks an updated EAP, efforts to meet guidelines and prepare inundation maps should be prioritized to enhance the overall safety and resilience of the Abiaca Watershed Structure Y-34-03 Dam. With its significant role in flood risk reduction and water management, this dam serves as a vital resource for the community and underscores the importance of sustainable infrastructure planning and maintenance in the face of climate challenges.
Year Completed |
1965 |
Dam Length |
477 |
Dam Height |
33 |
River Or Stream |
TR- COILA CREEK |
Primary Dam Type |
Earth |
Surface Area |
9 |
Hydraulic Height |
30 |
Drainage Area |
0.88 |
Nid Storage |
298 |
Structural Height |
39 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
39 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Abiaca Creek At Cruger
|
44cfs |
Tallahatchie River At Money
|
4970cfs |
Harland Creek Nr Howard
|
3340cfs |
Big Black River At West
|
178cfs |
Big Sunflower River At Sunflower
|
820cfs |
Batupan Bogue At Grenada
|
45cfs |
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.
Abiaca Watershed Structure Y-34-03 Dam