Md Route 104 Swm Pond (Sha Bmp 130077) Reservoir Report

Last Updated: December 5, 2025

The Md Route 104 Swm Pond, also known as Sha Bmp 130077 or Md104 At Md100, is a state-owned structure in Howard County, Maryland, completed in 1990 with a primary purpose of flood risk reduction.


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Summary

Situated on the Deep Run-TR river or stream, this earth dam stands at a height of 16.5 feet and has a significant hazard potential with a poor condition assessment.

Despite being a state-jurisdictional structure, the Md Route 104 Swm Pond is not regulated or permitted by the state and has not undergone recent inspections or maintenance. The last inspection was conducted in December 2021, revealing a poor condition that poses a risk to the surrounding area. With no emergency action plan in place and limited risk management measures identified, there is a pressing need for attention and potential improvements to ensure the safety and effectiveness of this flood risk reduction infrastructure in Maryland.

Year Completed

1990

Dam Height

16.5

River Or Stream

Deep Run-TR

Primary Dam Type

Earth

Drainage Area

0.01

Hazard Potential

Significant

Nid Height

17
       
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.