Manson Heights Dams
Manson Heights Dams is an earth dam located in Knox County, Illinois, built in 1950. It carries a Low hazard potential classification.
About Manson Heights Dams
The primary purpose of Manson Heights Dams is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Manson Heights, Inc. (private). It impounds the Trib Sugar Creek near Maquon.
The dam stands 25 feet tall, creates a reservoir covering 26 acres, has a maximum storage capacity of 300 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1950, the structure is well-established, with more than 75 years of service.
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 10/19/2023.
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Location
| State | Illinois |
| County | Knox |
| Nearest City | Maquon |
| River/Stream | Trib Sugar Creek |
| Coordinates | 40.97491, -90.14718 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 300 acre-ft |
| Max Storage | 300 acre-ft |
| Surface Area | 26 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | MANSON HEIGHTS, INC. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 10/19/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL50282 |
| Federal ID | IL50282 |
| More Info | State Dam Safety Program |