Briarwood Lake Dam
Briarwood Lake Dam is a dam located in Macoupin County, Illinois. It carries a Low hazard potential classification.
About Briarwood Lake Dam
The primary purpose of Briarwood Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is private-owned. It impounds the Trib West Fork Wood River near Brighton.
The dam stands 30 feet tall and stretches 400 feet across, creates a reservoir covering 25 acres, and has a storage capacity of 250 acre-feet.
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 04/30/2025.
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Location
| State | Illinois |
| County | Macoupin |
| Nearest City | Brighton |
| River/Stream | Trib West Fork Wood River |
| Coordinates | 39.03245, -90.13282 |
Physical Characteristics
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 400 ft |
Storage & Hydraulics
| NID Storage | 250 acre-ft |
| Normal Storage | 250 acre-ft |
| Surface Area | 25 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 04/30/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IL50727 |
| Federal ID | IL50727 |
| More Info | State Dam Safety Program |