East Fork Big Creek Dam E- 42 Reservoir Report
Last Updated: December 12, 2025
East Fork Big Creek Dam E-42, located in Harrison, Missouri, was completed in 1986 by the USDA NRCS with the primary purpose of flood risk reduction along the East Fork Big Creek.
°F
°F
mph
Wind
%
Humidity
Summary
This earth dam stands at a height of 25 feet and has a structural height of 27 feet, with a length of 510 feet. The dam has a normal storage capacity of 8 acre-feet and a maximum storage of 144 acre-feet, serving to mitigate the risk of flooding in the area.
The dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. It is equipped with an uncontrolled spillway with a width of 35 feet and has a maximum discharge capacity of 70 cubic feet per second. While the dam does not have outlet gates or associated structures, it plays a crucial role in managing water flow and protecting the surrounding area from potential flood events. The risk assessment for the dam is moderate, indicating the importance of ongoing monitoring and maintenance to ensure its continued effectiveness in flood risk reduction.
Overall, East Fork Big Creek Dam E-42 is a key piece of infrastructure in the region, designed to safeguard against flooding and protect the local community. As a part of the flood risk reduction system along East Fork Big Creek, this dam serves as a vital resource for water resource and climate enthusiasts, highlighting the intersection of engineering, natural resources, and environmental management in ensuring the resilience of communities in the face of changing climate patterns.
Year Completed |
1986 |
Dam Length |
510 |
Dam Height |
25 |
River Or Stream |
EAST FORK BIG CREEK |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
25 |
Drainage Area |
124.8 |
Nid Storage |
144 |
Structural Height |
27 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
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- 42