Jones Pond Dam
Jones Pond Dam is an earth dam located in Jersey County, Illinois, built in 1975. It carries a Low hazard potential classification.
About Jones Pond Dam
The primary purpose of Jones Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Truman Jones (private). It impounds the Trib Piasa Creek-offstream near Alton.
The dam stands 25 feet tall and stretches 225 feet across, and has a maximum storage capacity of 43 acre-feet. Completed in 1975, the structure is well into its service life at over 50 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 08/27/2025.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Illinois |
| County | Jersey |
| Nearest City | Alton |
| River/Stream | Trib Piasa Creek-offstream |
| Coordinates | 39.05938, -90.22151 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 225 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 43 acre-ft |
| Max Storage | 43 acre-ft |
| Normal Storage | 30 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | TRUMAN JONES |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 08/27/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL01054 |
| Federal ID | IL01054 |
| More Info | State Dam Safety Program |