Highway 44 #6 Reservoir Report
Nearby: Bak #1 Highway 44
Last Updated: December 8, 2025
Highway 44 #6 is a state-regulated dam located in Mellette, South Dakota, along the TR Little White Offstream.
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Summary
This earth dam stands at a height of 102 feet and was completed in 1973, offering a storage capacity of 900 acre-feet. With a maximum discharge rate of 6000 cubic feet per second, the dam serves a significant purpose in managing water resources in the area.
Despite its critical role, the condition of Highway 44 #6 has not been rated, highlighting a potential area of concern for water resource and climate enthusiasts. The dam's inspection frequency is set at three years, with the last assessment conducted in September 2017. With a significant hazard potential, it is crucial for stakeholders to closely monitor and maintain the dam to ensure its continued functionality and safety.
As an essential infrastructure for water management in the region, Highway 44 #6 warrants attention and potential risk assessment to mitigate any hazards that may arise. With its strategic location and capacity, the dam plays a vital role in protecting the surrounding community and maintaining water resources for both present and future generations.
Year Completed |
1973 |
Dam Length |
450 |
Dam Height |
102 |
River Or Stream |
TR LITTLE WHITE OFFSTREAM |
Primary Dam Type |
Earth |
Hydraulic Height |
102 |
Nid Storage |
900 |
Hazard Potential |
Significant |
Nid Height |
102 |
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.
Highway 44 #6