East Fork Big Creek Dam E- 28 Reservoir Report
Last Updated: December 11, 2025
Located in Harrison, Missouri, the East Fork Big Creek Dam E-28 was completed in 1989 by the USDA NRCS.
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Summary
This earth dam, with a height of 18 feet and a length of 530 feet, serves the primary purpose of flood risk reduction along the TR-East Fork Big Creek. With a storage capacity of 52 acre-feet and a normal storage of 12 acre-feet, the dam covers a surface area of 4 acres and drains a watershed area of 128 square miles.
Despite being rated as having a low hazard potential and not currently assessed for condition, the East Fork Big Creek Dam E-28 poses a moderate risk level. It features an uncontrolled spillway with a width of 20 feet and has no outlet gates or locks associated with it. The dam is not regulated by the state and does not have an Emergency Action Plan in place. However, its construction and operation are overseen by the Natural Resources Conservation Service, and it is part of the flood risk reduction measures in the area. For water resource and climate enthusiasts, this dam serves as a vital infrastructure for managing flood risks in the region.
Year Completed |
1989 |
Dam Length |
530 |
Dam Height |
18 |
River Or Stream |
TR-EAST FORK BIG CREEK |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
18 |
Drainage Area |
128 |
Nid Storage |
52 |
Structural Height |
18 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
18 |
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- 28