Swagmeyer Pond Dam is an earth dam located in Morgan County, Illinois, built in 1977. It carries a Low hazard potential classification.
Dam profile
NID height · 31 ft31 ft tall and 235 ft long, taller than 72% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Swagmeyer Pond Dam
Swagmeyer Pond Dam is a dam in Morgan, Illinois. The dam is owned by Paul Swagmeyer;paul Swagmeyer (private). It impounds the Tr- Coon Creek near Naples.
The dam stands 31 feet tall and stretches 235 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 51 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1977, the structure is 49 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 08/15/2025.
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Location
| State | Illinois |
| County | Morgan |
| Nearest City | Naples |
| River/Stream | Tr- Coon Creek |
| Coordinates | 39.82955, -90.43762 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 235 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 51 acre-ft |
| Max Storage | 51 acre-ft |
| Normal Storage | 35 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 235 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Paul Swagmeyer;paul Swagmeyer |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 08/15/2025 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IL40125 |
| Federal ID | IL40125 |
| More Info | State Dam Safety Program |