Redington Lake Dam Reservoir Report

Nearby: Snowden Pond

Last Updated: December 5, 2025

Redington Lake Dam, located in Prince George's County, Maryland, is a Federal-owned structure managed by the Fish and Wildlife Service.


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Summary

Built in 1940, this Earth-type dam stands at a height of 13 feet and has a length of 650 feet. With a primary purpose of serving as a Fish and Wildlife Pond, the dam has a storage capacity of 348 acre-feet and a maximum discharge rate of 438 cubic feet per second.

Despite its low hazard potential, Redington Lake Dam is currently rated as having poor condition following a 2016 inspection. The dam has undergone multiple modifications over the years, including hydraulic and structural upgrades in 1989 and 2004. With a very high risk rating, the dam is closely monitored by the Maryland Dam Safety regulatory agency to ensure public safety and environmental protection. As climate change impacts water resources management, the maintenance and monitoring of dams like Redington Lake Dam play a crucial role in mitigating potential risks and ensuring resilience in the face of changing climatic conditions.

Years Modified

1989 - Hydraulic, 1989 - Structural, 2004 - Hydraulic, 2004 - Structural

Year Completed

1940

Dam Length

650

Dam Height

13

River Or Stream

PATUXENT-TR

Primary Dam Type

Earth

Hydraulic Height

11

Drainage Area

2

Nid Storage

348

Structural Height

13

Outlet Gates

Other Controlled

Hazard Potential

Low

Nid Height

13
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.