Camp Immanuel Lake Dam Reservoir Report
Last Updated: December 20, 2025
Camp Immanuel Lake Dam, located in Bader-Offstream, Illinois, is a privately owned structure designed for recreation purposes and completed in 1906.
°F
°F
mph
Wind
%
Humidity
Summary
The earth dam, with a height of 33 feet and a length of 370 feet, holds a maximum storage of 208 acre-feet and a normal storage capacity of 152 acre-feet. The dam is regulated by the Illinois Department of Natural Resources, with state permitting, inspection, and enforcement in place to ensure its safety and compliance with regulations.
The dam is situated on the tributaries of Harris Branch and Sugar Creek, in Schuyler County, Illinois. With a low hazard potential and moderate risk assessment rating, the structure provides recreational opportunities for visitors while also being a vital component of the local water resource infrastructure. The spillway, which is uncontrolled, has a width of 27 feet, and the outlet gates are also uncontrolled, indicating a simplistic design that serves its purpose effectively.
Although the condition assessment is not available, the dam has been inspected as recently as July 2017, with a scheduled inspection frequency of five years. The risk management measures and emergency action plan status are unspecified, suggesting a need for further evaluation and preparedness in case of unforeseen events. Camp Immanuel Lake Dam remains a significant feature in the region's water resource system, offering both recreational enjoyment and the importance of water management in the area.
Year Completed |
1906 |
Dam Length |
370 |
Dam Height |
33 |
River Or Stream |
TRIB HARRIS BRANCH,SUGAR CREEK |
Primary Dam Type |
Earth |
Nid Storage |
208 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
33 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
La Moine River At Ripley
|
33cfs |
Sangamon River Near Oakford
|
356cfs |
Spoon River At Seville
|
161cfs |
Sangamon River At Petersburg
|
146cfs |
La Moine River At Colmar
|
17cfs |
Salt Creek Near Greenview
|
159cfs |
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.
Camp Immanuel Lake Dam