Fieldstone Subdivision Twin Dams-North Dam Reservoir Report
Last Updated: December 19, 2025
Fieldstone Subdivision Twin Dams-North Dam, also known as Brockmiller Twin Dams-North, is a privately owned earth dam located in Adams, Illinois.
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Summary
Designed by MECO Engineering Co. and completed in 2001, this dam stands at a height of 50 feet and has a length of 250 feet, with a storage capacity of 37 acre-feet. Its primary purpose is for recreation, offering a serene environment for water resource and climate enthusiasts to enjoy.
The dam is situated on the tributary of Little Miller Creek and is regulated by the Illinois Department of Natural Resources (IDNR). With a low hazard potential and moderate risk assessment, the dam serves as a vital structure for water management in the area. Despite its uncontrolled spillway and outlet gates, the dam has undergone regular inspections, with the last one conducted in April 2021, ensuring its safety and functionality for the surrounding community.
With its picturesque location and important role in water resource management, Fieldstone Subdivision Twin Dams-North Dam serves as a symbol of sustainable development and environmental stewardship. As water resource and climate enthusiasts explore this area, they can appreciate the efforts put into ensuring the dam's safety and functionality, providing a valuable recreational space for all to enjoy while maintaining a focus on conservation and environmental protection.
Year Completed |
2001 |
Dam Length |
250 |
Dam Height |
50 |
River Or Stream |
TRIB LITTLE MILLER CREEK |
Primary Dam Type |
Earth |
Surface Area |
2.08 |
Drainage Area |
0.03 |
Nid Storage |
37 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
50 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Bear Creek Near Marcelline
|
5cfs |
North River At Palmyra
|
15cfs |
South Fabius River Near Taylor
|
12cfs |
Wyaconda River Above Canton
|
13cfs |
Bear Creek At Hannibal
|
2cfs |
Salt River Near New London
|
82cfs |
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.
Fieldstone Subdivision Twin Dams-North Dam