Woodland Lake Dam Reservoir Report
Nearby: Osage Lake Dam Evergreen Lake Dam
Last Updated: December 22, 2025
Woodland Lake Dam, located in Macoupin, Illinois, is a privately-owned structure that serves primarily for recreational purposes.
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Summary
The dam, constructed with an earth core and buttress design, stands at a height of 27 feet with a length of 260 feet. Situated on the TRIB WEST FORK WOOD R, the dam is regulated by the Illinois Department of Natural Resources (IDNR) and undergoes regular state inspections and enforcement measures to ensure its safety and compliance.
Despite its moderate risk assessment rating, Woodland Lake Dam has a significant hazard potential, highlighting the importance of proper monitoring and maintenance. The dam features an uncontrolled spillway type with no outlet gates, reflecting the need for effective emergency action planning in case of unforeseen events. The last inspection in 2018 determined that the condition assessment was not available, emphasizing the necessity for ongoing assessments and risk management measures to safeguard the surrounding area and water resources.
As a critical infrastructure within the St. Louis District, Woodland Lake Dam's unique location and purpose make it a focal point for water resource and climate enthusiasts. With its picturesque setting and recreational value, the dam serves as a reminder of the delicate balance between human enjoyment and environmental stewardship in managing water resources effectively. Ongoing monitoring, risk assessment, and emergency preparedness are essential components in ensuring the safety and sustainability of Woodland Lake Dam for future generations to enjoy.
Dam Length |
260 |
Dam Height |
27 |
River Or Stream |
TRIB WEST FORK WOOD R |
Primary Dam Type |
Earth |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
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.
Woodland Lake Dam