Gbmc Pond Reservoir Report

Last Updated: December 5, 2025

Gbmc Pond, located in Towson, Maryland, is a privately owned earth dam constructed in 1993 by Daft-Mccune-Walker, Inc.


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Summary

This dam serves the primary purpose of flood risk reduction along the Towson Run-TR river or stream. Standing at a height of 13 feet and spanning a length of 350 feet, Gbmc Pond has a storage capacity of 5.4 acre-feet, with a normal storage level of 1.49 acre-feet and a drainage area of 0.08 square miles.

Despite being deemed to have a significant hazard potential, the condition assessment of Gbmc Pond is rated as fair, with the last inspection conducted in March 2016 and a scheduled inspection frequency of every three years. The dam is regulated by the Maryland Dam Safety agency, with permitting, inspection, and enforcement measures in place. The emergency action plan (EAP) for Gbmc Pond was last revised in May 2013, and risk assessments categorize the dam as having a high risk level. Overall, Gbmc Pond plays a crucial role in mitigating flood risks in the area while being subject to strict regulatory oversight to ensure public safety and environmental protection.

Year Completed

1993

Dam Length

350

Dam Height

13

River Or Stream

Towson Run-TR

Primary Dam Type

Earth

Surface Area

0.5

Drainage Area

0.08

Nid Storage

5.4

Outlet Gates

Valve - 0

Hazard Potential

Significant

Foundations

Soil

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.