Rising Moon Road Detention Area Dam Reservoir Report

Last Updated: December 20, 2025

Rising Moon Road Detention Area Dam, located in Springfield, Illinois, serves as a crucial flood risk reduction infrastructure along the TRIB LICK CR tributary.


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Summary

Owned and regulated by the State of Illinois with oversight from the IDNR, this Earth-type dam stands at a height of 9.7 feet with a storage capacity of 115.7 acre-feet. The dam spans a length of 460 feet and features an uncontrolled spillway with a width of 4 feet.

Despite its low hazard potential, the Rising Moon Road Detention Area Dam plays a vital role in managing flood risks in the region, with a maximum discharge capacity of 323 cubic feet per second. The dam's condition assessment is currently not available, but it undergoes inspections every 5 years to ensure its continued functionality. While the dam has not been modified in recent years, it remains a critical component of the local water resource infrastructure, contributing to the overall risk management efforts in the area.

Dam Length

460

Dam Height

9.7

River Or Stream

TRIB LICK CR

Primary Dam Type

Earth

Surface Area

15.4

Drainage Area

1.18

Nid Storage

115.7

Outlet Gates

None

Hazard Potential

Low

Foundations

Soil

Nid Height

10
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.