Gerdts Reservoir Report
Nearby: George Rath #2 George Rath #3
Last Updated: December 5, 2025
Gerdts is a private water resource located in Golden Valley, Montana, specifically in the city of LAVINA.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1940 by the USDA NRCS, this earth dam stands at a height of 25 feet and spans a length of 250 feet, with a maximum storage capacity of 73 acre-feet. The primary purposes of Gerdts include fire protection, stock watering, and serving as a small fish pond.
Operated by the DNRC, Gerdts is regulated by the state of Montana and is subject to regular inspections, enforcement, and permitting. The dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. While it does not have an Emergency Action Plan (EAP) in place, the risk management measures for Gerdts are not specified, and its inundation maps and risk assessment are yet to be prepared.
Overall, Gerdts plays a vital role in providing water resources for the local area, particularly for fire protection and livestock needs. Its location along the TR-FIVEMILE CREEK and its association with the Omaha District make it a significant structure in the region. With a focus on safety and regulatory compliance, Gerdts continues to serve as a valuable asset for water management and climate resilience efforts in Montana.
Year Completed |
1940 |
Dam Length |
250 |
Dam Height |
25 |
River Or Stream |
TR-FIVEMILE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Drainage Area |
2.19 |
Nid Storage |
73 |
Hazard Potential |
Low |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Gerdts