Joppa Station East Ash Pond is a dam located in Massac County, Illinois. It carries a Significant hazard potential classification.
Dam profile
NID height · 26 ft26 ft tall, taller than 55% 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 Joppa Station East Ash Pond
Joppa Station East Ash Pond is a dam in Massac, Illinois. The dam is public utility-owned. It impounds the Trib Ohio River.
The dam stands 26 feet tall.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 10/08/2025.
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Location
| State | Illinois |
| County | Massac |
| River/Stream | Trib Ohio River |
| Coordinates | 37.21028, -88.85199 |
Physical Characteristics
| NID Height | 26 ft |
| Dam Height | 26 ft |
Ownership & Safety
| Purpose | Other |
| Owner Type | Public Utility |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 10/08/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL50714 |
| Federal ID | IL50714 |
| More Info | State Dam Safety Program |