Lake Carroll Sedimentation Disposal Dam 5 Reservoir Report
Last Updated: December 14, 2025
Lake Carroll Sedimentation Disposal Dam 5, also known as Disposal Area 5, is a privately owned earth dam located in Mt.
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Summary
Carroll, Illinois. Constructed in 1992 by WENDLER & ASSOCIATES, this dam serves the primary purpose of debris control along the TRIB LAKE CARROLL stream. With a height of 21 feet and a length of 2100 feet, the dam has a storage capacity of 180 acre-feet and a maximum discharge of 44 cubic feet per second.
Managed by the Illinois Department of Natural Resources (IDNR), this dam is regularly inspected and regulated to ensure its stability and functionality. Despite being classified as having a low hazard potential, it is classified as having a moderate risk level. The dam's emergency action plan status and risk management measures are currently not available, highlighting the need for continued monitoring and assessment to mitigate any potential risks associated with the structure. Enthusiasts of water resources and climate will find Lake Carroll Sedimentation Disposal Dam 5 to be an intriguing example of private dam ownership and regulation in the state of Illinois.
Overall, Lake Carroll Sedimentation Disposal Dam 5 serves as a vital component of the local water management infrastructure, safeguarding the surrounding area from debris and providing essential flood control measures. Its association with the TRIB LAKE CARROLL stream and its strategic location in Mt. Carroll make it a key player in maintaining the ecological balance of the region. As a privately owned dam with state oversight, it represents a unique intersection of public and private interests in managing water resources and environmental hazards. The ongoing maintenance and monitoring of this dam will be crucial in ensuring its continued effectiveness and safety for the community and the environment.
Year Completed |
1992 |
Dam Length |
2100 |
Dam Height |
21 |
River Or Stream |
TRIB LAKE CARROLL |
Primary Dam Type |
Earth |
Nid Storage |
180 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
21 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Pecatonica River At Freeport
|
723cfs |
Elkhorn Creek Near Penrose
|
44cfs |
Pecatonica River At Martintown
|
473cfs |
Apple River Near Hanover
|
110cfs |
Rock River At Como
|
3350cfs |
Rock River At Byron
|
4300cfs |
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.
Lake Carroll Sedimentation Disposal Dam 5