Freeman United/ /2 Portal Lake
Freeman United/ /2 Portal Lake is an earth dam located in Jefferson County, Illinois, built in 1974. It carries a Low hazard potential classification.
About Freeman United/ /2 Portal Lake
Freeman United/ /2 Portal Lake is a dam in Jefferson, Illinois. The dam is owned by Freeman United Coal Mining Company (private). It impounds the Trib Little Muddy River near Desoto.
The dam stands 15 feet tall and stretches 1,120 feet across, and has a maximum storage capacity of 130 acre-feet. Completed in 1974, 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 05/27/2025.
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Location
| State | Illinois |
| County | Jefferson |
| Nearest City | Desoto |
| River/Stream | Trib Little Muddy River |
| Coordinates | 38.20839, -89.09691 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 1,120 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 130 acre-ft |
| Max Storage | 130 acre-ft |
| Normal Storage | 64 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | FREEMAN UNITED COAL MINING COMPANY |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 05/27/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00944 |
| Federal ID | IL00944 |
| More Info | State Dam Safety Program |