Alpena/murdock/slurry Pond 5 Dam is an earth dam located in Douglas County, Illinois, built in 1984. It carries a Significant hazard potential classification.
Dam profile
NID height · 23 ft23 ft tall and 4,800 ft long. 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 Alpena/murdock/slurry Pond 5 Dam
Alpena/murdock/slurry Pond 5 Dam is a dam in Douglas, Illinois. The dam is owned by Alpena Vision Resources (private). It impounds the Trib Brushy Fork near Murdock.
The dam stands 23 feet tall and stretches 4,800 feet across, and has a maximum storage capacity of 1,405 acre-feet. Completed in 1984, the structure is 42 years old.
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. An emergency action plan is in place for this dam. The most recent inspection on record was 06/11/2025.
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Location
| State | Illinois |
| County | Douglas |
| Nearest City | Murdock |
| River/Stream | Trib Brushy Fork |
| Coordinates | 39.79402, -88.05612 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 4,800 ft |
| Year Completed | 1984 (42 years old) |
Storage & Hydraulics
| NID Storage | 1,405 acre-ft |
| Max Storage | 1,405 acre-ft |
| Normal Storage | 1,264 acre-ft |
| Max Discharge | 50 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Alpena Vision Resources |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 06/11/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | IL50039 |
| Federal ID | IL50039 |
| More Info | State Dam Safety Program |