East Fork Big Creek Dam E- 58 Reservoir Report
Last Updated: December 13, 2025
East Fork Big Creek Dam E-58, located in Harrison, Missouri, is a privately owned earth dam designed by the USDA NRCS for flood risk reduction along the East Fork Big Creek.
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Summary
Completed in 2010, this 18.4 feet high structure plays a crucial role in protecting the surrounding area from potential flooding events, with a storage capacity of 134.3 acre-feet and a normal storage level of 36 feet. Despite its low hazard potential and moderate risk assessment, the dam has not been rated for its current condition, highlighting the need for ongoing monitoring and maintenance to ensure its continued effectiveness.
With a spillway width of 40 feet and a maximum discharge capacity of 149 cubic feet per second, East Fork Big Creek Dam E-58 is well-equipped to manage excess water flow during heavy rainfall or storm events. Although there are no outlet gates or associated structures, the dam's strategic location in S15, T65N, R27W, plays a significant role in protecting the local community and infrastructure from potential flood damage. While the dam itself is not regulated or inspected by the state, its presence serves as a vital asset in mitigating flood risks in the region.
As a key component in the flood risk reduction infrastructure, East Fork Big Creek Dam E-58 serves as a testament to the collaborative efforts between private owners and government agencies in safeguarding communities against natural disasters. While its condition assessment and emergency preparedness measures may require further attention, the dam's critical role in managing water resources and climate resilience underscores the importance of continued investment and stewardship in maintaining the integrity of such vital infrastructure.
Year Completed |
2010 |
Dam Length |
700 |
Dam Height |
18.4 |
River Or Stream |
EAST FORK BIG CREEK |
Primary Dam Type |
Earth |
Surface Area |
7 |
Hydraulic Height |
18 |
Drainage Area |
179.84 |
Nid Storage |
134.3 |
Structural Height |
24 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
24 |
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.
East Fork Big Creek Dam E- 58