Lake Mildred Dam is an earth dam located in Monroe County, Illinois, built in 1950. It carries a Low hazard potential classification.
Dam profile
NID height · 19 ft19 ft tall and 440 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 Lake Mildred Dam
The primary purpose of Lake Mildred Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by William De Mint (private). It impounds the Trib Onemile Race Creek near Steggenevieve.
The dam stands 19 feet tall and stretches 440 feet across, and has a maximum storage capacity of 205 acre-feet. 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 09/19/2014. That was over 12 years ago.
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Location
| State | Illinois |
| County | Monroe |
| Nearest City | Steggenevieve |
| River/Stream | Trib Onemile Race Creek |
| Coordinates | 38.12498, -90.12717 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 440 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 205 acre-ft |
| Max Storage | 205 acre-ft |
| Normal Storage | 173 acre-ft |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | William De Mint |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 09/19/2014 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL00327 |
| Federal ID | IL00327 |
| More Info | State Dam Safety Program |