South Fork Blackwater River Dam E- 7 Reservoir Report
Last Updated: December 21, 2025
South Fork Blackwater River Dam E-7, located in Warrensburg, Missouri, was completed in 1979 by the USDA NRCS.
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Summary
This earth dam stands at a height of 34 feet and has a length of 600 feet, with a primary purpose of flood risk reduction. With a normal storage capacity of 42 acre-feet and a maximum storage of 340 acre-feet, the dam plays a crucial role in managing the flow of the TR-S.FK Blackwater River, which has a drainage area of 320 square miles.
Despite being classified as having a low hazard potential, the dam is considered to have a moderate risk level based on a rating of 3. The condition assessment of the dam is currently listed as "Not Rated," indicating a need for further evaluation. The dam does not have an Emergency Action Plan in place, raising concerns about preparedness in the event of a crisis. However, the structure is not regulated by the state and has not undergone recent inspections.
Overall, South Fork Blackwater River Dam E-7 serves as a vital infrastructure for flood risk reduction in Johnson County, Missouri. Its strategic location and design by the USDA NRCS highlight the importance of water resource management in the region. As climate change continues to impact water systems, the maintenance and monitoring of dams like E-7 will be essential in ensuring the safety and resilience of communities along the Blackwater River.
Year Completed |
1979 |
Dam Length |
600 |
Dam Height |
34 |
River Or Stream |
TR-S.FK BLACKWATER |
Primary Dam Type |
Earth |
Surface Area |
19 |
Hydraulic Height |
34 |
Drainage Area |
320 |
Nid Storage |
340 |
Structural Height |
36 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
36 |
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 E- 7