Roberts Field Basin 1 (North Woods Trail At Boxwood) Reservoir Report

Last Updated: December 5, 2025

Roberts Field Basin 1, located in Hampstead, Maryland, along the North Woods Trail at Boxwood, serves as a vital flood risk reduction structure for the area.


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Summary

Built in 1992, this earth dam stands at a height of 25 feet and has a hydraulic height of 14 feet, with a storage capacity of 34 acre-feet. The dam spans 441 feet in length and covers a surface area of 2.38 acres, providing critical protection for the surrounding community against potential flooding from the Piney Run.

Managed by the local government and regulated by the Maryland Dam Safety agency, Roberts Field Basin 1 has been assessed to be in fair condition with a significant hazard potential. Regular inspections and maintenance ensure its continued effectiveness in flood control, with a moderate risk assessment rating. The dam features an uncontrolled spillway type with a width of 25 feet, and it has undergone seismic modifications in 1992 to enhance its resilience to potential disasters.

With its strategic location and key role in flood risk management, Roberts Field Basin 1 stands as a crucial infrastructure asset in Carroll County, Maryland. As water resource and climate enthusiasts explore the area, they can appreciate the engineering and design work by DRS and Associates that went into constructing this essential structure. As efforts continue to monitor and maintain the dam's condition, it remains a cornerstone in safeguarding the community and environment against the impacts of severe weather events.

Years Modified

1992 - Seismic

Year Completed

1992

Dam Length

441

Dam Height

25

River Or Stream

Piney Run

Primary Dam Type

Earth

Surface Area

2.38

Hydraulic Height

14

Drainage Area

0.07

Nid Storage

34

Hazard Potential

Significant

Foundations

Soil

Nid Height

25
       
Seasonal Comparison

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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.