Monida Creek #2 Du Dam Reservoir Report
Nearby: Monida Creek #1 Du Dam Peru
Last Updated: December 5, 2025
Monida Creek #2 Du Dam, located in Lima, Montana, is a Federal-owned structure managed by the Bureau of Land Management.
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Summary
Built in 2003, this gravity dam serves the primary purpose of creating a Fish and Wildlife Pond, with a storage capacity of 68 acre-feet and a surface area of 23 acres. The dam stands at a hydraulic height of 7 feet and a structural height of 9 feet, with a length of 1110 feet.
Despite being classified as having a low hazard potential, the dam is in poor condition and has a very high risk assessment rating. The last inspection in October 2017 revealed the need for improvement. With an inspection frequency of 5 years, it is crucial for maintenance and risk management measures to be implemented to ensure its safety and functionality. The dam's controlled spillway and stone buttress core types add to its unique design and functionality for managing water resources in the area.
As a vital component of the local water infrastructure, Monida Creek #2 Du Dam plays a crucial role in supporting fish and wildlife habitats in the region. With its location in the Walla Walla District and under the oversight of the Bureau of Land Management, it serves as a key asset for conservation efforts. However, given its current condition and risk level, continued monitoring and maintenance are essential to ensure its long-term viability and effectiveness in water management and conservation initiatives.
Year Completed |
2003 |
Dam Length |
1110 |
River Or Stream |
MONIDA CREEK |
Primary Dam Type |
Gravity |
Surface Area |
23 |
Hydraulic Height |
7 |
Nid Storage |
68 |
Structural Height |
9 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
9 |
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.
Monida Creek #2 Du Dam