Sd Noname 118 Reservoir Report
Nearby: Sd Noname 119 Sd Noname 9
Last Updated: December 6, 2025
Sd Noname 118 is a privately owned dam located in Haakon County, South Dakota, along the TR-BAD RIVER.
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Summary
Constructed in 1950 by the Natural Resources Conservation Service, this earthen dam stands at a height of 11 feet and spans 850 feet in length. With a storage capacity of 62 acre-feet, this dam plays a crucial role in water resource management in the region.
This significant dam has a hazard potential rating of "Significant" and is regulated by the South Dakota Department of Environment and Natural Resources. While its condition is currently "Not Rated", the dam is subject to regular state inspections, enforcement, and permitting to ensure its structural integrity and safety. Located in the city of Philip, Sd Noname 118 serves as a key infrastructure for flood control and water storage, contributing to the management of the local watershed.
Despite its importance in the region, Sd Noname 118 does not fall under the jurisdiction of the U.S. Army Corps of Engineers. With a maximum discharge capacity of 1000 cubic feet per second, this dam plays a crucial role in mitigating flood risks and ensuring water availability for agricultural and municipal purposes in Haakon County. With its long history of service and ongoing regulatory oversight, Sd Noname 118 stands as a vital piece of infrastructure in the local water resource management system.
Year Completed |
1950 |
Dam Length |
850 |
Dam Height |
11 |
River Or Stream |
TR-BAD RIVER |
Primary Dam Type |
Earth |
Hydraulic Height |
11 |
Nid Storage |
62 |
Hazard Potential |
Significant |
Nid Height |
11 |
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.
Sd Noname 118