Timber Lake Cattle Co 3 Reservoir Report
Nearby: Rubendall Little Moreau #1
Last Updated: December 13, 2025
Timber Lake Cattle CO 3 is a privately owned dam located in Dewey, South Dakota, along the TR Moreau river.
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Summary
This earth dam was completed in 1970 and stands at a height of 32 feet, with a storage capacity of 35 acre-feet. The dam is regulated by the South Dakota Department of Environment and Natural Resources (DENR) and undergoes regular inspections, with a low hazard potential rating.
Managed by the Natural Resources Conservation Service, Timber Lake Cattle CO 3 plays a crucial role in water resource management in the region, providing irrigation water for agricultural activities and helping to control the flow of the TR Moreau river. Despite not being currently rated for condition assessment, the dam continues to serve its intended purpose effectively. With a maximum discharge capacity of 1050 cubic feet per second, the dam is equipped to handle potential flood events and protect downstream areas.
As a part of the St. Paul District in South Dakota, Timber Lake Cattle CO 3 exemplifies the importance of private infrastructure in water resource management and climate resilience. By meeting state regulatory standards and ensuring regular inspections, the dam contributes to the overall safety and sustainability of the surrounding environment. With its low hazard potential and essential water storage capacity, Timber Lake Cattle CO 3 stands as a vital asset in the region's water resource infrastructure.
Year Completed |
1970 |
Dam Length |
230 |
Dam Height |
32 |
River Or Stream |
TR MOREAU |
Primary Dam Type |
Earth |
Hydraulic Height |
32 |
Nid Storage |
35 |
Hazard Potential |
Low |
Nid Height |
32 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Moreau R Near Whitehorse Sd
|
35cfs |
Grand R At Little Eagle Sd
|
47cfs |
Oak Cr Near Wakpala Sd
|
10cfs |
Cedar Creek Nr Raleigh
|
20cfs |
Moreau R Near Faith Sd
|
14cfs |
Cannonball River Nr Raleigh
|
40cfs |
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.
Timber Lake Cattle Co 3