Chalker Reservoir Report
Nearby: Griffis Lee Smith Dam
Last Updated: December 6, 2025
Chalker is a private water resource located in Forest Lake Township, Pennsylvania.
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Summary
Managed by the Pennsylvania Department of Environmental Protection, this dam was completed in 1984 with a primary purpose of recreation. With a height of 21 feet and a length of 900 feet, Chalker provides a storage capacity of 100 acre-feet and covers a surface area of 6 acres, serving a drainage area of 0.1 square miles.
Despite its satisfactory condition assessment, Chalker poses a high hazard potential. The dam has a regular inspection frequency and was last assessed in October 2020. While emergency action plans and risk assessment details are currently unavailable, the dam's satisfactory condition reflects ongoing efforts to ensure public safety and environmental protection. Overall, Chalker serves as a vital water resource in Susquehanna County, Pennsylvania, contributing to the region's recreational activities and water management efforts.
As a significant earth dam in the Baltimore District, Chalker plays a crucial role in regulating the flow of the TR FOREST LAKE CREEK. With its location in Forest Lake Township and proximity to major water bodies, the dam's operation and maintenance are closely monitored by state regulatory agencies. Enthusiasts of water resources and climate change can appreciate Chalker's contribution to the local ecosystem and its importance in ensuring sustainable water management practices in the region.
Year Completed |
1984 |
Dam Length |
900 |
Dam Height |
21 |
River Or Stream |
TR FOREST LAKE CREEK |
Primary Dam Type |
Earth |
Surface Area |
6 |
Drainage Area |
0.1 |
Nid Storage |
100 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
21 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Susquehanna River At Conklin Ny
|
2070cfs |
Susquehanna River At Meshoppen
|
5080cfs |
Susquehanna River At Vestal Ny
|
3790cfs |
Tunkhannock Creek Near Tunkhannock
|
95cfs |
Susquehanna River At Owego Ny
|
3700cfs |
Susquehanna River At Windsor Ny
|
1500cfs |
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.
Chalker