Swagmeyer Pond Dam Reservoir Report
Last Updated: December 21, 2025
Swagmeyer Pond Dam, located in Naples, Illinois, was completed in 1977 and stands at a height of 31 feet, with a length of 235 feet.
°F
°F
mph
Wind
%
Humidity
Summary
Managed by a private owner, the dam serves various purposes including fire protection, stock, small fish pond, and recreation. It has a normal storage capacity of 35 acre-feet and a maximum storage of 51 acre-feet, with a surface area of 3 acres and a drainage area of 0.11 square miles.
The dam, designed by USDA NRCS, is primarily an earth dam with stone core types and soil foundations. It spans the TR- Coon Creek, regulated by the IDNR in Illinois. With a low hazard potential and moderate risk assessment, the dam features an uncontrolled spillway with a width of 30 feet. The last inspection of the dam was conducted in July 2016, with a condition assessment marked as "Not Available".
Overall, Swagmeyer Pond Dam plays a crucial role in water resource management and climate resilience in its region. With its diverse purposes and moderate risk assessment, it stands as a key infrastructure for the local community and wildlife habitat along the TR- Coon Creek. Its design and construction by the Natural Resources Conservation Service reflect a commitment to sustainable water management and environmental protection in Illinois.
Year Completed |
1977 |
Dam Length |
235 |
Dam Height |
31 |
River Or Stream |
TR- COON CREEK |
Primary Dam Type |
Earth |
Surface Area |
3 |
Drainage Area |
0.11 |
Nid Storage |
51 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
31 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Illinois River At Valley City
|
4670cfs |
La Moine River At Ripley
|
23cfs |
Bay Creek At Pittsfield
|
43cfs |
Sangamon River Near Oakford
|
582cfs |
Sangamon River At Petersburg
|
199cfs |
Spring Creek At Springfield
|
6cfs |
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.
Swagmeyer Pond Dam