Lake Seven Falls No 3 Reservoir Report
Last Updated: December 6, 2025
Lake Seven Falls No 3, located in Ste.
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Summary
Genevieve, Missouri, is a privately owned earth dam built in 1971 for the primary purpose of recreation. With a height of 70 feet and a length of 490 feet, this dam provides a storage capacity of 624 acre-feet and covers a surface area of 43 acres. The dam, situated on TR Hickory Creek, is regulated by the DAM AND RESERVOIR SAFETY PROG in Missouri and undergoes regular inspections to ensure its structural integrity.
Despite its high hazard potential, Lake Seven Falls No 3 is currently in satisfactory condition according to a 2007 assessment. The dam's spillway is uncontrolled, with a maximum discharge capacity of 8000 cubic feet per second. Although there are no outlet gates or associated structures, the dam is equipped to handle emergencies with emergency action plans in place. With a moderate risk assessment rating of 3, Lake Seven Falls No 3 remains a significant feature for water resource and climate enthusiasts in the area, providing both recreational opportunities and regulatory oversight to ensure public safety.
Year Completed |
1971 |
Dam Length |
490 |
Dam Height |
70 |
River Or Stream |
TR HICKORY CREEK |
Primary Dam Type |
Earth |
Surface Area |
43 |
Drainage Area |
355 |
Nid Storage |
624 |
Structural Height |
70 |
Outlet Gates |
None |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
70 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Big River Below Desloge
|
59cfs |
Big River At Irondale
|
27cfs |
Little St. Francis River At Fredericktown
|
1cfs |
South Fork Saline Creek Near Perryville
|
10cfs |
Mississippi River At Chester
|
95800cfs |
Big River Near Richwoods
|
221cfs |
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.
Lake Seven Falls No 3