Ryerson Station Reservoir Report
Last Updated: March 10, 2026
Ryerson Station, located in Greene, Pennsylvania, is a state-regulated dam with a primary purpose of recreation.
Summary
Built in 1960, this concrete gravity dam stands at 42 feet tall and spans 515 feet, creating a reservoir with a storage capacity of 3,500 acre-feet. The dam sits on the North Fork Dunkard Fork river and covers a surface area of 62 acres, with a drainage area of 25.9 square miles.
Despite its recreational benefits, Ryerson Station poses a high hazard potential and has been rated as unsatisfactory in its condition assessment. The Pennsylvania Department of Environmental Protection is responsible for regulating, inspecting, and enforcing safety measures at the dam. The last inspection was conducted in May 2020, with a frequency of one inspection per year. The dam's emergency action plan status and risk assessment measures are currently unknown.
Enthusiasts of water resources and climate will be intrigued by the data surrounding Ryerson Station, a recreational dam with a complex history of construction and regulation. With its location in a picturesque township and its significant storage capacity, this dam presents both opportunities for enjoyment and challenges in ensuring its safety and maintenance. As the Pennsylvania Department of Environmental Protection continues to oversee and monitor Ryerson Station, it remains a focal point for those interested in the intersection of water management and environmental protection.
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15-Day Weather Outlook
Year Completed |
1960 |
Dam Length |
515 |
Dam Height |
42 |
River Or Stream |
NORTH FORK DUNKARD FORK |
Primary Dam Type |
Concrete |
Surface Area |
62 |
Drainage Area |
25.9 |
Nid Storage |
3500 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
42 |
Seasonal Comparison
5-Day Hourly Forecast Detail
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Ryerson Station
Dunkard Fork Near Majorsville