Third Lake Dam Reservoir Report
Nearby: Eads Lake Dam Shullock Lake Dam
Last Updated: January 12, 2026
Located in Paris, Illinois, the Third Lake Dam, also known as the Twin Lakes Dam, stands as a crucial water resource structure on Sugar Creek.
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Summary
Built in 1961 by ALVORD, BURDICK & HOWSON, this earth dam serves primarily for recreation but also plays a role in water supply. With a height of 39 feet and a length of 1070 feet, the dam boasts a storage capacity of 5301 acre-feet and a surface area of 235 acres, making it a significant feature in the area.
Managed by local government authorities and regulated by the Illinois Department of Natural Resources, the Third Lake Dam poses a significant hazard potential and has a moderate risk assessment rating. Despite lacking a condition assessment, the dam undergoes inspections every 3 years to ensure its structural integrity and safety. With an uncontrolled spillway and outlet gates, the dam plays a crucial role in managing water flow and levels in the region, safeguarding against potential flooding events and ensuring a stable water supply for the surrounding community.
Enthusiasts of water resources and climate will find the Third Lake Dam an intriguing structure, given its historical significance, engineering design, and environmental impact. With its location on Sugar Creek and its vital role in recreation and water supply, the dam serves as a pivotal asset in the region's water management infrastructure. As efforts continue to monitor and maintain the dam's safety, it remains a focal point for those interested in sustainable water resource management and climate resilience in the area.
Year Completed |
1961 |
Dam Length |
1070 |
Dam Height |
39 |
River Or Stream |
SUGAR CREEK |
Primary Dam Type |
Earth |
Surface Area |
235 |
Drainage Area |
21.7 |
Nid Storage |
5301 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
39 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Wabash River At Terre Haute
|
1950cfs |
Wabash River At Montezuma
|
1930cfs |
Big Raccoon Creek At Coxville
|
79cfs |
Embarras River Near Camargo
|
24cfs |
Vermilion River Near Danville
|
253cfs |
Middle Fork Vermilion River Above Oakwood
|
29cfs |
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.
Third Lake Dam