Libbys Lagoon 4 Dam Reservoir Report
Nearby: Libbys Lagoon 2 Dam Kennel Lake Dam
Last Updated: December 16, 2025
Libbys Lagoon 4 Dam, located in Morton, Illinois, was completed in 1974 and is owned by a private entity.
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Summary
Designed by Libby, McNeil & Libby Co., this earth dam stands at a height of 28 feet with a length of 1930 feet, providing a storage capacity of 94 acre-feet. The dam is situated on the TRIB BULL RUN CREEK-OFFSTREAM, under the regulatory oversight of the Illinois Department of Natural Resources.
Despite its low hazard potential, the dam poses a high risk due to its condition assessment being unavailable, indicating a potential need for further evaluation and maintenance. With a regular inspection frequency of 5 years, the dam's emergency action plan status and risk management measures are currently not available. While the dam has no spillway and is not associated with any federal agencies, its location and purpose suggest a vital role in local water resource management within the Tazewell County area.
Water resource and climate enthusiasts interested in the Libbys Lagoon 4 Dam would find it intriguing due to its historical significance, design characteristics, and the need for potential risk mitigation measures in the face of changing climate conditions. The dam's presence highlights the importance of private ownership in maintaining critical infrastructure for water storage and flood control, highlighting the intersection of environmental stewardship and private investment in water resource management. Further assessment and monitoring of this dam's condition and emergency preparedness may be necessary to ensure its long-term sustainability and resilience in the face of future challenges.
Year Completed |
1974 |
Dam Length |
1930 |
Dam Height |
28 |
River Or Stream |
TRIB BULL RUN CREEK-OFFSTREAM |
Primary Dam Type |
Earth |
Nid Storage |
94 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
28 |
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.
Libbys Lagoon 4 Dam