Deer Run Dam Reservoir Report
Last Updated: January 12, 2026
Deer Run Dam, located in Schuyler County, Illinois, is a vital water resource structure designed by AGRI-WASTE TECHNOLOGY, INC.
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Summary
The dam, completed in 2002, serves the primary purpose of water supply and stands at a height of 29 feet with a length of 530 feet. It holds a storage capacity of 162.45 acre-feet and covers a surface area of 10.9 acres, drawing from a drainage area of 0.25 square miles.
Managed by a private owner, Deer Run Dam is state-regulated by the Illinois Department of Natural Resources (IDNR) for permitting, inspection, and enforcement. The dam's spillway, designed as uncontrolled with a width of 115 feet, has a low hazard potential and a moderate risk assessment rating of 3 out of 5. While the condition assessment is not available, the dam has a regular inspection frequency of 5 years to ensure its structural integrity and safety.
Situated along the TRIB LAMOINE RIVER in the city of RIPLEY, Deer Run Dam plays a crucial role in water supply management for the region. With its strategic location and reliable performance, this earth dam contributes to the conservation and distribution of water resources, making it a significant asset for water resource and climate enthusiasts to appreciate and monitor.
Year Completed |
2002 |
Dam Length |
530 |
Dam Height |
29 |
River Or Stream |
TRIB LAMOINE RIVER |
Primary Dam Type |
Earth |
Surface Area |
10.9 |
Drainage Area |
0.25 |
Nid Storage |
162.45 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
29 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
La Moine River At Colmar
|
67cfs |
La Moine River At Ripley
|
48cfs |
Bear Creek Near Marcelline
|
5cfs |
Spoon River At Seville
|
186cfs |
Illinois River At Valley City
|
13900cfs |
Bay Creek At Pittsfield
|
43cfs |
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.
Deer Run Dam