Caldwell Lake Dam Reservoir Report
Last Updated: December 24, 2025
Caldwell Lake Dam, located in Noble County, Ohio, was completed in 1969 with the primary purpose of flood risk reduction along the Dog Run river.
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Summary
Owned by the local government and regulated by the Department of Natural Resources, this earth dam stands at a height of 74.5 feet and has a storage capacity of 3,165 acre-feet. Despite its fair condition assessment, the dam poses a high hazard potential and is subject to regular inspections to ensure public safety.
Managed by the USDA NRCS, Caldwell Lake Dam has a spillway type of uncontrolled and outlet gates that are also uncontrolled. The dam's associated structures count is zero, and it has a moderate risk assessment rating of 3. With a drainage area of 4.68 square miles and a surface area of 49.9 acres, this dam plays a crucial role in managing water resources and mitigating flood risks in the region. Ensuring its continued safety and effectiveness is essential for protecting the surrounding communities and ecosystems from potential hazards.
Year Completed |
1969 |
Dam Length |
550 |
Dam Height |
74.5 |
River Or Stream |
DOG RUN |
Primary Dam Type |
Earth |
Surface Area |
49.9 |
Drainage Area |
4.68 |
Nid Storage |
3165 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
75 |
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.
Caldwell Lake Dam