Nagels Mill Pond Reservoir Report
Last Updated: December 5, 2025
Nagels Mill Pond, also known as Nagels Pond, is a privately owned water resource located in Todd Wharf, Maryland.
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Summary
Built in 1860, this Earth-type dam stands at a height of 16 feet and stretches across 450 feet, creating a serene surface area of 20 acres for recreational purposes. The pond is fed by Fowling Creek and has a drainage area of 5.6 square miles, with a maximum discharge capacity of 1600 cubic feet per second.
Despite its age, Nagels Mill Pond is in fair condition, with a significant hazard potential due to its uncontrolled spillway and valve outlet gates. The dam has a storage capacity of 175 acre-feet, with a normal storage level of 91 acre-feet. In 2000, the pond underwent modifications, and it is regularly inspected every three years to ensure its structural integrity. The dam is regulated by the Maryland Dam Safety agency and meets state permitting and inspection requirements.
Enthusiasts of water resources and climate will appreciate Nagels Mill Pond for its historical significance, recreational opportunities, and the critical role it plays in water management within the Caroline County area. With its picturesque setting and moderate risk assessment, this dam serves as both a functional infrastructure for flood control and a peaceful retreat for outdoor enthusiasts to enjoy the beauty of Maryland's natural landscapes.
Years Modified |
2000 - Other |
Year Completed |
1860 |
Dam Length |
450 |
Dam Height |
16 |
River Or Stream |
Fowling Creek |
Primary Dam Type |
Earth |
Surface Area |
20 |
Drainage Area |
5.6 |
Nid Storage |
175 |
Outlet Gates |
Valve - 0 |
Hazard Potential |
Significant |
Foundations |
Rock, Soil |
Nid Height |
16 |
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.
Nagels Mill Pond