Fitzgerald Lake Dam East Reservoir Report
Last Updated: December 14, 2025
Fitzgerald Lake Dam East, located in Jo Daviess, Illinois, is a private earth dam completed in 1965, with a primary purpose of fire protection, stock, or small fish pond.
°F
°F
mph
Wind
%
Humidity
Summary
The dam stands at a height of 12 feet and spans 350 feet in length, with a storage capacity of 124 acre-feet. The dam is regulated by the Illinois Department of Natural Resources and is subject to state inspections, permitting, and enforcement to ensure its safety and compliance with regulations.
While the hazard potential of Fitzgerald Lake Dam East is rated as low, the risk assessment indicates a moderate level of risk (3 out of 5). The dam features an uncontrolled spillway with a width of 13 feet and outlet gates that are also uncontrolled. The last inspection of the dam was conducted in May 2017, with an inspection frequency of every 5 years. Despite the condition assessment not being available, the dam is considered to be in a moderate risk management category, highlighting the importance of ongoing monitoring and maintenance to mitigate any potential risks.
For water resource and climate enthusiasts, Fitzgerald Lake Dam East serves as a vital structure for fire protection, irrigation, and recreational purposes in the Blackhawk-Offstream area. With its location on the Rush Creek tributary, the dam plays a key role in managing water resources and supporting the local ecosystem. As a privately owned dam, it is essential for the owners and regulatory agencies to collaborate on maintaining its safety and functionality for the benefit of the community and the environment.
Year Completed |
1965 |
Dam Length |
350 |
Dam Height |
12 |
River Or Stream |
TRIB RUSH CREEK |
Primary Dam Type |
Earth |
Nid Storage |
124 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
12 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Apple River Near Hanover
|
110cfs |
Sinsinawa River Near Menominee
|
19cfs |
Maquoketa River Near Maquoketa
|
569cfs |
North Fork Maquoketa River Near Fulton
|
245cfs |
Pecatonica River At Martintown
|
473cfs |
Pecatonica River At Freeport
|
694cfs |
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.
Green Island Lake-DNR
Pleasant Creek Campground
Duck Creek County Park
Bellevue State Park Campground - Dyas Unit
Bellevue State Park
South Sabula Lakes County Park
Fitzgerald Lake Dam East
Jackson County