Orr Pond Dam Reservoir Report
Last Updated: December 19, 2025
Orr Pond Dam, located in Fargo Offstream, Illinois, was completed in 1971 by the USDA NRCS and serves as a vital structure in the Tr- Dry Fork-Mc Kee Creek watershed.
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Summary
This private earth dam, standing at a height of 26 feet and a length of 280 feet, provides a storage capacity of 31 acre-feet and has a normal storage level of 22 acre-feet. The dam's primary purpose is listed as "Other," with a low hazard potential and a moderate risk assessment rating.
Although the condition assessment of Orr Pond Dam is currently listed as "Not Available," its design by the USDA NRCS ensures that it meets the necessary safety standards. The dam features an uncontrolled spillway with a width of 14 feet and an outlet gate system. Despite not having a specific inspection frequency or emergency action plan prepared, the dam is deemed to have a moderate risk level, indicating the importance of continued monitoring and maintenance to ensure its safety and functionality for water resource and climate enthusiasts in the area.
Year Completed |
1971 |
Dam Length |
280 |
Dam Height |
26 |
River Or Stream |
Tr- Dry Fork-Mc Kee Creek |
Primary Dam Type |
Earth |
Surface Area |
3 |
Drainage Area |
0.08 |
Nid Storage |
31 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
La Moine River At Ripley
|
33cfs |
Illinois River At Valley City
|
2970cfs |
La Moine River At Colmar
|
17cfs |
Bay Creek At Pittsfield
|
43cfs |
Bear Creek Near Marcelline
|
5cfs |
Bear Creek At Hannibal
|
2cfs |
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.
Orr Pond Dam