Heuerman Pond Dam Reservoir Report
Nearby: Rose Estates Dam Walnut Point Dam
Last Updated: March 13, 2026
Heuerman Pond Dam, located in Havana, Illinois, was completed in 1974 and is managed by the USDA NRCS.
Summary
The dam stands on Lamarsh Creek and serves primarily for recreational purposes. The structure is a rockfill dam with buttress core type and is regulated by the Illinois Department of Natural Resources, with state permitting, inspection, and enforcement in place.
With a significant hazard potential, the dam has an uncontrolled spillway and outlet gates. While the condition assessment is not available, the last inspection in May 2021 revealed a moderate risk level. The dam's emergency action plan status, inundation maps, and risk management measures are not provided, indicating potential gaps in preparedness and response protocols. Despite these challenges, the dam continues to be a notable feature for water resource and climate enthusiasts in the area.
°F
°F
mph
Wind
%
Humidity
15-Day Weather Outlook
Year Completed |
1974 |
River Or Stream |
LAMARSH CREEK |
Primary Dam Type |
Rockfill |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Seasonal Comparison
5-Day Hourly Forecast Detail
Nearby Streamflow Levels
Illinois River At Kingston Mines
|
14300cfs |
Fondulac Creek Near East Peoria
|
2cfs |
Farm Creek At Farmdale
|
11cfs |
Mackinaw River Near Green Valley
|
258cfs |
Mackinaw River Near Congerville
|
138cfs |
Indian Creek Near Wyoming
|
3cfs |
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.
Heuerman Pond Dam