Glades Reservoir Report
Nearby: Schneider 2 Hidden Valley
Last Updated: December 6, 2025
Glades is a state-owned dam located in Cherry Township, Butler, Pennsylvania.
°F
°F
mph
Wind
%
Humidity
Summary
Completed in 1974, this earthen dam serves primarily for recreational purposes, offering a surface area of 390 acres for outdoor activities. The dam stands at a height of 24 feet and has a storage capacity of 8,600 acre-feet, providing ample water resources for the surrounding area.
Managed by the Pennsylvania Department of Environmental Protection, Glades is regulated, permitted, inspected, and enforced by the state to ensure its structural integrity and safety. Despite its high hazard potential, the dam has been assessed to be in satisfactory condition, with regular inspections scheduled to maintain its safety standards. The South Branch Slippery Rock Creek serves as the primary river or stream for Glades, contributing to its drainage area of 22.5 square miles.
For water resource and climate enthusiasts, Glades presents an intriguing case study of a recreational dam in Pennsylvania with a significant storage capacity and a vital role in the local ecosystem. With its history dating back to the 1970s, the dam continues to provide opportunities for outdoor recreation while also serving as a regulated and inspected structure to mitigate potential hazards and ensure public safety. Its location in Cherry Township offers a picturesque setting for visitors and residents to enjoy activities like fishing, boating, and wildlife observation, making it a valuable asset for the community and a focal point for water resource management in the region.
Year Completed |
1974 |
Dam Length |
960 |
Dam Height |
24 |
River Or Stream |
SOUTH BRANCH SLIPPERY ROCK CR |
Primary Dam Type |
Earth |
Surface Area |
390 |
Drainage Area |
22.5 |
Nid Storage |
8600 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
24 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Allegheny River At Parker
|
8640cfs |
Muddy Creek Near Portersville
|
103cfs |
Slippery Rock Creek At Wurtemburg
|
209cfs |
Allegheny River At Franklin
|
7210cfs |
Connoquenessing Creek Near Zelienople
|
116cfs |
Allegheny River At Kittanning
|
10500cfs |
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.
Glades
Kurtz Ditch