Jacoby Pond Dam 1 Reservoir Report
Nearby: Mike Mckee Pond Dam Nixon Pond Dam 1
Last Updated: December 21, 2025
Jacoby Pond Dam 1, located in Jalapa, Illinois, stands as a testament to water resource management and conservation efforts.
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Summary
Built in 1975 by the USDA NRCS, this private dam serves as a crucial structure for regulating water flow in the TR- Hodges Creek N stream. With a height of 40 feet and a length of 500 feet, the dam has a storage capacity of 270 acre-feet, providing essential water resources for the surrounding area.
This earth dam, constructed with stone core types on a soil foundation, boasts a spillway width of 100 feet and a maximum discharge of 770 cubic feet per second. While its hazard potential is undetermined, the dam's risk assessment indicates a moderate level of risk. Despite lacking recent condition assessments, Jacoby Pond Dam 1 continues to serve its primary purpose effectively, showcasing the importance of maintaining and monitoring such critical infrastructure for water resource and climate enthusiasts.
Managed by the Illinois Department of Natural Resources, this dam exemplifies the collaborative efforts between private owners and state regulatory agencies to ensure its safety and functionality. With its strategic location and design, Jacoby Pond Dam 1 remains a key component in water management and conservation efforts in Macoupin County, Illinois, highlighting the crucial role of dams in sustaining water resources for future generations.
Year Completed |
1975 |
Dam Length |
500 |
Dam Height |
40 |
River Or Stream |
TR- HODGES CREEK N |
Primary Dam Type |
Earth |
Surface Area |
16 |
Drainage Area |
0.14 |
Nid Storage |
270 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Undetermined |
Foundations |
Soil |
Nid Height |
40 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Jacoby Pond Dam 1