Park Retreat Swm Pond Reservoir Report

Last Updated: December 5, 2025

Park Retreat Swm Pond, located in Pasadena, Maryland, is a local government-owned structure designed by Messick and Associates to serve as a flood risk reduction measure along the Magothy River.


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Summary

Completed in 2013, this earth dam stands at a height of 20 feet and has a storage capacity of 50 acre-feet. With a normal storage capacity of 3 acre-feet and a drainage area of 0.15 square miles, the pond covers a surface area of 1 acre and has a maximum discharge rate of 100 cubic feet per second.

The dam, primarily built for flood risk reduction, features an uncontrolled spillway and has a low hazard potential. Despite not being rated for its condition assessment, the structure undergoes inspections every five years, with the last assessment conducted in December 2018. While the risk assessment deems the pond to have a moderate risk level, no specific risk management measures or emergency action plans have been reported. Overall, Park Retreat Swm Pond serves as a vital asset in mitigating flood risks in the Anne Arundel area, showcasing the intersection of water resource management and climate resilience efforts.

Year Completed

2013

Dam Length

250

Dam Height

20

River Or Stream

Magothy River-TR

Primary Dam Type

Earth

Surface Area

1

Drainage Area

0.15

Nid Storage

50

Hazard Potential

Low

Foundations

Soil

Nid Height

20
       
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.