Springfield Coal/industry/pond 18 Dam is an earth dam located in McDonough County, Illinois, built in 1993. It carries a Low hazard potential classification.
Dam profile
NID height · 39 ft39 ft tall and 500 ft long, taller than 85% 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 Springfield Coal/industry/pond 18 Dam
Springfield Coal/industry/pond 18 Dam is a dam in McDonough, Illinois. The dam is owned by Springfield Coal Company, LLC (private). It impounds the Trib Grindstone Creek.
The dam stands 39 feet tall and stretches 500 feet across, and has a maximum storage capacity of 368 acre-feet. Completed in 1993, the structure is 33 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 10/03/2024.
At 39 feet, this dam is taller than 85% of dams nationwide.
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Location
| State | Illinois |
| County | McDonough |
| Nearest City | None |
| River/Stream | Trib Grindstone Creek |
| Coordinates | 40.29170, -90.72500 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 39 ft |
| Dam Height | 39 ft |
| Dam Length | 500 ft |
| Year Completed | 1993 (33 years old) |
Storage & Hydraulics
| NID Storage | 368 acre-ft |
| Max Storage | 368 acre-ft |
| Normal Storage | 120 acre-ft |
| Max Discharge | 2,951 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Springfield Coal Company, LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 10/03/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL50297 |
| Federal ID | IL50297 |
| More Info | State Dam Safety Program |