Dill Reservoir Report
Nearby: Byington Lake Dam Franken Lake Dam
Last Updated: December 8, 2025
Dill, Lee Dam in Osage, Missouri, constructed in 1939, serves primary purposes of fire protection, stock, or a small fish pond.
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Summary
This privately owned earth dam with a buttress core stands at 25 feet in height and has a storage capacity of 54 acre-feet. Situated on Linn Creek, the dam plays a crucial role in the local water resource management, with a low hazard potential and a condition assessment that is not rated.
Located in LINN city, the dam falls under the St. Louis District of the US Army Corps of Engineers but is not federally regulated. While it has not been inspected recently, the dam's emergency action plan (EAP) and risk management measures are not currently available. Despite these gaps, the dam continues to offer important services for the community, including water storage and fire protection, highlighting the intersection of water resource management and climate resilience in the region.
Year Completed |
1939 |
Dam Height |
25 |
River Or Stream |
LINN CREEK |
Primary Dam Type |
Earth |
Surface Area |
4 |
Drainage Area |
60 |
Nid Storage |
54 |
Structural Height |
25 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Gasconade River Near Rich Fountain
|
960cfs |
Maries River At Westphalia
|
16cfs |
Moreau River Near Jefferson City
|
61cfs |
Osage River Below St. Thomas
|
1200cfs |
Missouri River At Jefferson City
|
32600cfs |
Bourbeuse River Near High Gate
|
1cfs |
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.
Dill, Lee Dam