Carrigan Pond Dam Reservoir Report
Nearby: Rowe Lake Dam Roegge Pond Dam
Last Updated: December 21, 2025
Carrigan Pond Dam, located in Morgan County, Illinois, is a private earth dam designed by the USDA NRCS and completed in 1972 for the primary purpose of creating a Fish and Wildlife Pond.
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Summary
With a dam height of 29 feet and a length of 253 feet, the reservoir has a storage capacity of 49 acre-feet and serves multiple purposes including recreation and wildlife habitat. The dam is regulated by the Illinois Department of Natural Resources and is considered to have a low hazard potential.
Despite its low hazard potential, Carrigan Pond Dam poses a moderate risk, as indicated by a risk assessment rating of 3. The dam features an uncontrolled spillway and outlet gates, with a maximum discharge capacity of 190 cubic feet per second. The dam is inspected regularly, with the most recent inspection conducted in April 2021. While the condition assessment is not available, the dam is considered to be in a satisfactory state based on available data.
Located on TR- BRUSHY FORK river, Carrigan Pond Dam stands as a testament to the importance of water resource management for both wildlife conservation and recreational activities. With its tranquil surroundings and diverse ecosystem, the dam serves as a vital resource for the local community while also highlighting the need for ongoing monitoring and maintenance to ensure the safety and integrity of the structure.
Year Completed |
1972 |
Dam Length |
253 |
Dam Height |
29 |
River Or Stream |
TR- BRUSHY FORK |
Primary Dam Type |
Earth |
Surface Area |
5 |
Drainage Area |
0.14 |
Nid Storage |
49 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
29 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Illinois River At Valley City
|
4670cfs |
Bay Creek At Pittsfield
|
43cfs |
Macoupin Creek Near Kane
|
20cfs |
Spring Creek At Springfield
|
6cfs |
La Moine River At Ripley
|
23cfs |
Sangamon River At Petersburg
|
199cfs |
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.
Carrigan Pond Dam