Alsup Farm Pond Dam is an earth dam located in Brown County, Illinois, built in 1968. It carries a Low hazard potential classification.
Dam profile
NID height · 44 ft44 ft tall and 400 ft long, taller than 89% 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 Alsup Farm Pond Dam
The primary purpose of Alsup Farm Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Dawn Enterprises (private). It impounds the Trib Illinois River near Meredosia.
The dam stands 44 feet tall and stretches 400 feet across, and has a maximum storage capacity of 329 acre-feet. Completed in 1968, 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 04/19/2024.
At 44 feet, this dam is taller than 89% of dams nationwide.
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Location
| State | Illinois |
| County | Brown |
| Nearest City | Meredosia |
| River/Stream | Trib Illinois River |
| Coordinates | 39.87155, -90.64597 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 44 ft |
| Dam Height | 44 ft |
| Dam Length | 400 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 329 acre-ft |
| Max Storage | 329 acre-ft |
| Normal Storage | 251 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Dawn Enterprises |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 04/19/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00499 |
| Federal ID | IL00499 |
| More Info | State Dam Safety Program |