Allen Tucker No.1 Reservoir Report
Nearby: Ryno #1 Bruning No.1
Last Updated: December 13, 2025
Allen Tucker No.1 is a privately owned earth dam located in Mellette, South Dakota, along the tributary of White Timber Creek.
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Summary
Built in 1967, this dam stands at a height of 25 feet and has a storage capacity of 34 acre-feet. With a low hazard potential and a "Not Rated" condition assessment, this structure is under the jurisdiction of the South Dakota Department of Environment and Natural Resources (DENR), ensuring that it meets state regulations for permitting, inspection, and enforcement.
Despite its relatively modest size and capacity, Allen Tucker No.1 plays a vital role in water resource management in the region, providing flood protection, irrigation, and water supply for local communities. The dam's construction was overseen by the St. Paul District of the US Army Corps of Engineers, and it continues to be monitored for any necessary maintenance or repairs. With a maximum discharge of 115 cubic feet per second, the dam serves as a crucial infrastructure for maintaining the ecological balance and water quality of the surrounding area.
As climate change continues to impact water resources and weather patterns, structures like Allen Tucker No.1 will become increasingly important for mitigating the effects of extreme weather events. With its operational history and regulatory oversight, this dam stands as a testament to the importance of sustainable water management practices and serves as a model for future infrastructure development in the face of a changing climate.
Year Completed |
1967 |
Dam Length |
592 |
Dam Height |
25 |
River Or Stream |
TRIB. WHITE TIMBER CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Nid Storage |
34 |
Hazard Potential |
Low |
Nid Height |
25 |
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.
Allen Tucker No.1