Ed Styer #3 Reservoir Report
Nearby: Ed Styer #5 Ed Styer #2
Last Updated: December 5, 2025
Ed Styer #3 is a privately owned earth dam located in Fergus County, Montana, along the TR-Antelope Creek.
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Summary
Built in 1958 by the USDA NRCS, this dam serves multiple purposes including fire protection, stock, and small fish pond. With a height of 30 feet and a length of 600 feet, the dam has a storage capacity of 66 acre-feet and a drainage area of 1.56 square miles. It has a low hazard potential and is currently in a condition that has not been rated.
Managed by the DNRC and regulated by the state of Montana, Ed Styer #3 plays a key role in water resource management in the region. Despite not having a spillway type specified, the dam is equipped with a 150-foot wide spillway. This structure, nestled in a scenic location within the Omaha District, is essential for maintaining water levels and ensuring the safety of the surrounding area during flooding events. Although the dam has not been inspected recently, it is subject to state permitting, inspection, and enforcement protocols to ensure its continued functionality and safety.
Year Completed |
1958 |
Dam Length |
600 |
Dam Height |
30 |
River Or Stream |
TR-ANTELOPE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
30 |
Drainage Area |
1.56 |
Nid Storage |
66 |
Hazard Potential |
Low |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Missouri River Near Landusky Mt
|
9100cfs |
Musselshell River At Mosby Mt
|
12cfs |
Flatwillow Creek Near Mosby Mt
|
17cfs |
Judith River Nr Mouth
|
368cfs |
Peoples Creek Near Hays Mt
|
4cfs |
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.
Ed Styer #3