Browns Lake Dam is an earth dam located in Menard County, Illinois, built in 1974. It carries a Low hazard potential classification.
Dam profile
NID height · 27 ft27 ft tall, taller than 59% 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 Browns Lake Dam
The primary purpose of Browns Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Gary Styzens (private). It impounds the Trib Rock Cr near Salsbury.
The dam stands 27 feet tall, creates a reservoir covering 5 acres, has a maximum storage capacity of 62 acre-feet, and collects water from a drainage area of 113 square miles. 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 11/05/2019.
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Location
| State | Illinois |
| County | Menard |
| Nearest City | Salsbury |
| River/Stream | Trib Rock Cr |
| Coordinates | 39.92687, -89.79969 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 62 acre-ft |
| Max Storage | 62 acre-ft |
| Normal Storage | 45 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 113 sq mi |
| Max Discharge | 451 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Gary Styzens |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 11/05/2019 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL50590 |
| Federal ID | IL50590 |
| More Info | State Dam Safety Program |