Little Youghiogheny Site 2 Reservoir Report

Last Updated: December 5, 2025

Little Youghiogheny Site 2, also known as Geroski Dam, is a local government-owned structure in Oakland, Maryland, designed by the USDA NRCS for flood risk reduction along Cherry Glade Run.


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Summary

Completed in 1962, this earth dam stands at a height of 35 feet and has a length of 610 feet, with a storage capacity of 222 acre-feet. Despite its fair condition assessment, the dam has a high hazard potential and is regulated by the Maryland Dam Safety agency.

This dam, located in Garrett County, Maryland, plays a crucial role in mitigating flood risks in the area and is equipped with an uncontrolled spillway and slide gates for water release. The dam's maximum discharge capacity is 2720 cubic feet per second, serving a drainage area of 0.5 square miles. With a surface area of 3.4 acres and a normal storage capacity of 17 acre-feet, Little Youghiogheny Site 2 remains a key infrastructure for water resource management in the region.

In terms of emergency preparedness, the dam's Emergency Action Plan (EAP) status is not specified, but it has undergone regular inspections, with the last assessment conducted in May 2021. Despite the moderate risk assessment rating, the dam continues to serve its primary purpose of flood risk reduction effectively. As a significant structure in the area, Little Youghiogheny Site 2 highlights the importance of sustainable water resource management and climate resilience efforts in safeguarding communities against potential hazards.

Year Completed

1962

Dam Length

610

Dam Height

35

River Or Stream

Cherry Glade Run

Primary Dam Type

Earth

Surface Area

3.4

Drainage Area

0.5

Nid Storage

222

Outlet Gates

Slide (sluice gate) - 0

Hazard Potential

High

Foundations

Rock, Soil

Nid Height

35
       
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.