South Fork Blackwater River Dam F- 2 Reservoir Report
Last Updated: December 20, 2025
South Fork Blackwater River Dam F- 2, located in Sweet Springs, Missouri, was completed in 1965 by the USDA NRCS for the primary purpose of flood risk reduction along Brush Creek.
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Summary
This earth dam stands at a structural height of 32 feet and spans 550 feet in length, with a maximum storage capacity of 436 acre-feet and a drainage area of 300.8 square miles. Despite being classified as having a low hazard potential, the dam is considered to have a moderate risk level.
The dam features an uncontrolled spillway with a width of 90 feet and is constructed primarily with stone core types on a soil foundation. With a normal storage capacity of 66 acre-feet and a maximum discharge of 1160 cubic feet per second, the South Fork Blackwater River Dam F- 2 plays a crucial role in managing water flow and mitigating flood risks in the region. Although not currently regulated or inspected by state agencies, the dam serves as a key infrastructure for water resource management in Johnson County, Missouri.
While the condition assessment for the dam is currently not rated and emergency action planning details are not available, the South Fork Blackwater River Dam F- 2 remains a vital structure for flood risk reduction in the area. With its strategic location and design features, this dam continues to play a significant role in safeguarding communities and properties along Brush Creek from potential flooding events.
Year Completed |
1965 |
Dam Length |
550 |
Dam Height |
30 |
River Or Stream |
BRUSH CREEK |
Primary Dam Type |
Earth |
Surface Area |
1 |
Hydraulic Height |
30 |
Drainage Area |
300.8 |
Nid Storage |
436 |
Structural Height |
32 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
32 |
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.
South Fork Blackwater River Dam F- 2