Lake Janna Dam Reservoir Report
Last Updated: March 2, 2026
Lake Janna Dam, located in Wayne County, Missouri, was completed in 1972 with a primary purpose of recreation.
Summary
This private earth dam stands at a height of 32 feet and has a storage capacity of 51 acre-feet. The dam, situated on TR-Barnes Creek, offers a surface area of 3 acres for water enthusiasts to enjoy.
With a high hazard potential, Lake Janna Dam has not been rated for its condition assessment. However, the dam remains a popular spot for recreational activities, attracting visitors looking to relax and unwind in a serene natural setting. Despite not being regulated or inspected by the state, the dam continues to serve as a valuable resource for the local community and visitors alike.
Although lacking in certain regulatory measures, Lake Janna Dam provides a picturesque location for water and climate enthusiasts to appreciate the beauty of nature. As a privately owned structure, the dam's role in providing recreational opportunities underscores the importance of responsible water resource management and conservation efforts in safeguarding our environment for future generations.
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Wind
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Humidity
15-Day Weather Outlook
Year Completed |
1972 |
Dam Height |
32 |
River Or Stream |
TR-BARNES CREEK |
Primary Dam Type |
Earth |
Surface Area |
3 |
Drainage Area |
26 |
Nid Storage |
51 |
Structural Height |
32 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
32 |
Seasonal Comparison
5-Day Hourly Forecast Detail
Nearby Streamflow Levels
Castor River At Zalma
|
215cfs |
St. Francis River At Wappapello
|
443cfs |
St. Francis River Near Patterson
|
280cfs |
St. Francis River Near Saco
|
189cfs |
Black River At Leeper
|
538cfs |
Black River At Poplar Bluff
|
763cfs |
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 Janna Dam