B&A Hammond #2 Reservoir Report
Nearby: B&A Hammond #1 Yellow Sarpy
Last Updated: December 5, 2025
B&A Hammond #2 is a private irrigation dam located on Tullock Creek in Big Horn, Montana.
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Summary
Built in 1968, this Earth-type dam is designed to provide irrigation water for the surrounding area. With a height of 15 feet and a storage capacity of 147 acre-feet, the dam serves as a vital resource for agricultural purposes in the region.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), B&A Hammond #2 is regulated, inspected, and enforced by the state to ensure its safety and functionality. Despite being classified as having a low hazard potential, the dam's condition has not been officially rated. With no emergency action plan (EAP) in place and limited risk assessment information available, there is a need for further evaluation and preparedness measures to address any potential risks associated with the dam.
For water resource and climate enthusiasts interested in the management and maintenance of dams, B&A Hammond #2 presents an intriguing case study in private irrigation infrastructure. As a key element in the local water supply system, this dam highlights the importance of regulatory oversight, inspection protocols, and emergency preparedness in ensuring the safety and reliability of water resources for agricultural and environmental purposes.
Year Completed |
1968 |
Dam Length |
50 |
Dam Height |
15 |
River Or Stream |
TULLOCK CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Nid Storage |
147 |
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.
B&A Hammond #2