Glendale Gardens Detention Pond Dam Reservoir Report
Last Updated: December 22, 2025
Located in Wood River, Illinois, the Glendale Gardens Detention Pond Dam stands as a vital structure designed by the Department of Water Resources to mitigate flood risks along the tributary of Smith Lake.
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Summary
Completed in 1998, this earth dam is a key component in reducing potential inundation in the area, with a height of 18 feet and a storage capacity of 410 acre-feet. With a spillway width of 670 feet and a maximum discharge capability of 18,696 cubic feet per second, this dam plays a crucial role in managing water flow during periods of high precipitation.
Managed by the local government, this dam is regulated by the Illinois Department of Natural Resources, ensuring compliance with state permitting, inspection, and enforcement protocols. Despite being classified as a high hazard potential structure, the Glendale Gardens Detention Pond Dam maintains a moderate risk assessment rating. While its condition assessment is currently unavailable, regular inspections are conducted to monitor its integrity and functionality. With a focus on flood risk reduction, this dam serves as a critical infrastructure in safeguarding the surrounding community from potential water-related disasters.
Encompassing a vast surface area and draining a significant watershed, the Glendale Gardens Detention Pond Dam is a testament to the importance of water resource management and climate resilience. As climate change continues to impact precipitation patterns and intensify extreme weather events, structures like this earth dam play a pivotal role in safeguarding communities and ecosystems from the devastating effects of floods. With a notable history of design and construction by the Department of Water Resources, this dam stands as a beacon of engineering excellence and environmental stewardship in the face of changing climatic conditions.
Year Completed |
1998 |
Dam Length |
3500 |
Dam Height |
18 |
River Or Stream |
TRIB SMITH LAKE |
Primary Dam Type |
Earth |
Nid Storage |
410 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
18 |
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.
Glendale Gardens Detention Pond Dam
Riverlands Way West Alton