Tex Oh Leo Reservoir Report
Nearby: Procyon Dragons Head
Last Updated: December 20, 2025
Tex Oh Leo is a privately owned earth dam located in Liberty County, Montana, specifically in the city of Havre.
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Summary
Built in 1960 with a height of 15 feet and a length of 100 feet, this dam serves multiple purposes including fire protection, stock, and small fish pond management. Situated on Cottonwood Coulee, this structure is regulated by the Montana Department of Natural Resources and Conservation (DNRC) and is subject to state jurisdiction, permitting, inspection, and enforcement.
With a storage capacity of 50 acre-feet, Tex Oh Leo poses a low hazard potential and has not been rated for its condition assessment. Although it is not under the ownership or funding of any federal agency, the dam is equipped with emergency action plans and is located in a congressional district represented by Greg Gianforte. Despite lacking in detailed risk management measures and updated contact information, Tex Oh Leo remains an important infrastructure for water resource management in the region.
Water resource and climate enthusiasts will find Tex Oh Leo to be an intriguing case study of a privately owned earth dam in rural Montana. Its historical significance, varied purposes, and state regulation provide valuable insights into the challenges and opportunities associated with managing water resources in an environmentally sensitive area. Its presence along Cottonwood Coulee highlights the importance of small-scale dams for fire protection, livestock management, and ecological preservation in this picturesque region.
Year Completed |
1960 |
Dam Length |
100 |
Dam Height |
15 |
River Or Stream |
COTTONWOOD COULEE |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Nid Storage |
50 |
Hazard Potential |
Low |
Nid Height |
15 |
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.
Tex Oh Leo