Cbc Dam Reservoir Report
Nearby: Chocolate Milkshake Caldwell #5
Last Updated: December 6, 2025
Cbc Dam, located in Fort Peck, Montana, was completed in 1958 and is owned and operated by the Bureau of Land Management.
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Summary
This gravity dam, with a height of 27 feet and a hydraulic height of 24 feet, primarily serves the purposes of fire protection, stock, and small fish pond management. With a storage capacity of 95.2 acre-feet and a surface area of 13.6 acres, the dam plays a crucial role in managing water resources in the area.
Despite its low hazard potential, Cbc Dam has not been rated for its condition assessment. The dam is not state-regulated and does not have state jurisdiction, permitting, inspection, or enforcement. The last inspection was conducted in August 2016, with an inspection frequency of every 5 years. While the dam does not have an Emergency Action Plan (EAP) in place, it is important to ensure that risk management measures are considered to maintain the safety and integrity of the structure.
With its location on Big Dry Creek/Missouri River, Cbc Dam is a key infrastructure for water resource management in Garfield County, Montana. As climate change continues to impact water availability and quality, it is essential to monitor and maintain dams like Cbc to ensure sustainable water use and protection of ecosystems in the region.
Year Completed |
1958 |
Dam Length |
260 |
River Or Stream |
BIG DRY CK./MISSOURI RIVER (RE |
Primary Dam Type |
Gravity |
Surface Area |
13.6 |
Hydraulic Height |
24 |
Drainage Area |
0.52 |
Nid Storage |
95.2 |
Structural Height |
27 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Nelson Creek Near Van Norman Mt
|
33cfs |
Milk River At Nashua Mt
|
233cfs |
Redwater River At Circle Mt
|
4cfs |
Milk River At Tampico Mt
|
123cfs |
Missouri River Near Wolf Point Mt
|
5020cfs |
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.
Cbc Dam