Lucas #1 Reservoir Report
Nearby: Higgins Brothers #1 Hamen Reservoir
Last Updated: December 5, 2025
Lucas #1 is a privately owned earth dam located in Ringling, Montana, along the TR-Sixteen Mile Creek.
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Summary
Built in 1939 for irrigation purposes, this dam stands at a height of 28 feet and has a storage capacity of 75 acre-feet. The dam is regulated and inspected by the Montana Department of Natural Resources and Conservation (DNRC), ensuring its compliance with state regulations and safety standards.
Despite its age, Lucas #1 has a low hazard potential and has not been rated for its condition assessment. The dam has not been modified in recent years, and there is no emergency action plan (EAP) in place for this structure. While the risk assessment and management measures are currently unknown, the dam's location in a sparsely populated area may contribute to its low hazard potential.
As water resource and climate enthusiasts, the data surrounding Lucas #1 provides insight into the infrastructure supporting irrigation in Montana. The dam's historical significance and continued operation underscore the importance of maintaining and regulating water resources in the face of changing climate conditions. Further evaluation of the dam's condition and risk management measures may be necessary to ensure its continued safety and effectiveness in the years to come.
Year Completed |
1939 |
Dam Length |
400 |
Dam Height |
28 |
River Or Stream |
TR-SIXTEEN MILE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
28 |
Nid Storage |
75 |
Hazard Potential |
Low |
Nid Height |
28 |
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.
Lucas #1