East Fork Big Creek Dam E- 22 Reservoir Report
Last Updated: December 11, 2025
East Fork Big Creek Dam E- 22, located in Bethany, Missouri, was completed in 1998 with the primary purpose of flood risk reduction along the East Fork Big Creek.
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Summary
Owned and operated by the local government, this earth dam stands at a height of 24 feet and has a maximum storage capacity of 65.6 acre-feet. With a low hazard potential and a moderate risk assessment rating, this dam plays a crucial role in protecting the surrounding area from potential flooding events.
Designed by the USDA NRCS and constructed with stone core types on a soil foundation, East Fork Big Creek Dam E- 22 has a spillway width of 20 feet and an uncontrolled spillway type. The dam spans 500 feet in length and covers a surface area of 3 acres, serving a drainage area of 12.8 square miles. Despite not being regulated or inspected by the state, this dam remains in good condition and has not undergone any modifications since its completion. With a risk management plan in place and emergency contacts updated, East Fork Big Creek Dam E- 22 is well-equipped to handle any potential threats and ensure the safety of the surrounding community and water resources.
Year Completed |
1998 |
Dam Length |
500 |
Dam Height |
16 |
River Or Stream |
EAST FORK BIG CREEK |
Primary Dam Type |
Earth |
Surface Area |
3 |
Hydraulic Height |
16 |
Drainage Area |
12.8 |
Nid Storage |
65.6 |
Structural Height |
24 |
Outlet Gates |
Other Controlled |
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- 22