V. Garrett Reservoir Report
Nearby: Bakers Gulch Dam K. Sutton
Last Updated: December 7, 2025
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Summary
Garrett is a privately owned dam located in Sully, South Dakota, with a low hazard potential. This earth dam, completed in 1947, stands at a height of 25 feet and spans 436 feet in length. It has a maximum storage capacity of 96 acre-feet and a normal storage level of 44 acre-feet. The dam is regulated by the South Dakota Department of Environment and Natural Resources (DENR) and undergoes regular inspections, permitting, and enforcement to ensure its safety and compliance with state regulations.
Situated on the TR MISSONot RatedI river or stream, V. Garrett serves essential water resource management functions in the region. With a maximum discharge capacity of 700 cubic feet per second, this dam plays a crucial role in flood control and water supply management. While the dam's condition assessment is currently listed as "Not Rated," it is subject to ongoing risk assessments and management measures to address any potential issues and ensure the safety of the surrounding community and environment.
Owned and operated by a private entity, V. Garrett is an integral part of the water infrastructure in South Dakota. With its historical significance dating back to the mid-20th century, this dam continues to provide vital services for the region while being monitored and regulated by state authorities. As climate change impacts water resources, dams like V. Garrett play a critical role in adapting to changing conditions and ensuring sustainable water management practices for the future.
Year Completed |
1947 |
Dam Length |
436 |
Dam Height |
25 |
River Or Stream |
TR MISSONot RatedI |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Nid Storage |
96 |
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.
V. Garrett