Dwarf Reservoir Report
Last Updated: December 6, 2025
Dwarf is a privately owned earth dam located in Glendive, Montana, on Cedar Creek.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1961, this dam serves multiple purposes including fire protection, stock, and a small fish pond. With a height of 15 feet and a storage capacity of 234 acre-feet, Dwarf has a low hazard potential and is regulated by the Montana Department of Natural Resources and Conservation (DNRC).
The dam has a maximum discharge capacity of 720 cubic feet per second and a normal storage capacity of 50 acre-feet. Dwarf is primarily used for water resource management and emergency preparedness, although its condition assessment is currently listed as "Not Rated." Despite this, the dam is regularly inspected, permitted, and enforced by the state agency, ensuring its safety and functionality for the surrounding community.
Located in Dawson County, Montana, Dwarf is a vital water resource infrastructure that plays a crucial role in providing water for fire protection and livestock, as well as supporting local fish populations. With its strategic location and low hazard potential, Dwarf represents a key component of the state's water management infrastructure and highlights the importance of maintaining and regulating dams for both water resource and climate enthusiasts.
Year Completed |
1961 |
Dam Length |
600 |
Dam Height |
15 |
River Or Stream |
CEDAR CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Nid Storage |
234 |
Hazard Potential |
Low |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Yellowstone River At Glendive Mt
|
6000cfs |
Beaver Creek Nr Trotters
|
0cfs |
Powder River Near Locate Mt
|
231cfs |
Little Missouri River At Medora
|
64cfs |
Little Missouri River At Marmarth
|
12cfs |
Deep Creek Nr Amidon
|
0cfs |
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.
Dwarf