Summary
Completed in 1950, this earth dam stands at a height of 16 feet and has a length of 625 feet, providing a storage capacity of 188 acre-feet. Despite its low hazard potential and lack of a formal condition rating, Grimes Dam is regulated and inspected by the Montana Department of Natural Resources and Conservation to ensure its safety and compliance with state regulations.
The dam's location in Custer County, Montana, falls under the jurisdiction of the state, with oversight from the DNRC. The surrounding area benefits from the water storage capacity provided by Grimes Dam for irrigation purposes, contributing to the local agricultural industry. With a small storage volume and no spillway or lock systems, the dam serves as a vital resource for water management in the region, highlighting the importance of maintaining and monitoring its structural integrity.
Although Grimes Dam has not been formally assessed for its condition or emergency action plan readiness, its presence on Grimes Creek plays a crucial role in supporting local water resource management efforts. As water resource and climate enthusiasts, staying informed about the status and maintenance of structures like Grimes Dam is essential for ensuring the sustainability of water systems and their impact on the surrounding environment.
Year Completed |
1950 |
Dam Length |
625 |
Dam Height |
16 |
River Or Stream |
GRIMES CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
16 |
Nid Storage |
188 |
Hazard Potential |
Low |
Nid Height |
16 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Yellowstone River At Miles City Mt
|
8100cfs |
Tongue River At Miles City Mt
|
263cfs |
Pumpkin Creek Near Miles City Mt
|
0cfs |
Powder River Near Locate Mt
|
231cfs |
Yellowstone River At Forsyth Mt
|
5430cfs |
Redwater River At Circle Mt
|
1cfs |
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.
Grimes Dam