Lemon Hart Reservoir Report
Nearby: The Pinta Edward Lanning #2
Last Updated: December 5, 2025
Lemon Hart is a privately owned dam located in Carter, Montana, along the South Fork Willow Creek.
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Summary
Built in 1960 by the USDA NRCS, this earth dam stands at 27 feet high and spans 700 feet in length. With a primary purpose of providing fire protection, stock watering, and serving as a small fish pond, Lemon Hart also offers a storage capacity of 107 acre-feet and a normal storage of 58 acre-feet.
Managed by the DNRC, Lemon Hart is regulated, permitted, inspected, and enforced by the state of Montana. Despite its low hazard potential, the dam's condition is currently not rated, and there is no information available on its inspection frequency, emergency action plan, or risk assessment. As part of the Omaha District and Congressional District 00 of Montana, Lemon Hart remains a vital water resource infrastructure for the local community, showcasing the intersection of water resource management, climate resilience, and environmental stewardship.
As a key feature in the region's water infrastructure, Lemon Hart serves as a crucial asset for fire protection, agricultural activities, and wildlife conservation. With its strategic location, efficient design, and state regulation, Lemon Hart stands as a testament to the collaborative efforts between private owners, government agencies, and conservation groups in ensuring sustainable water resource management and climate adaptation in Montana's rural landscapes.
Year Completed |
1960 |
Dam Length |
700 |
Dam Height |
27 |
River Or Stream |
SOUTH FORK WILLOW CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
27 |
Nid Storage |
107 |
Hazard Potential |
Low |
Nid Height |
27 |
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.
Lemon Hart