Long Lake Control Structure
Long Lake Control Structure is a gravity dam located in Livingston County, Michigan, built in 1951. It carries a Low hazard potential classification and has a poor condition assessment.
About Long Lake Control Structure
The primary purpose of Long Lake Control Structure is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Livingston County Dr. Commissioner (private). It impounds the South Ore Creek near Brighton.
The dam stands 8 feet tall and stretches 50 feet across, creates a reservoir covering 146 acres, has a maximum storage capacity of 400 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1951, 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. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 11/02/2018.
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Location
| State | Michigan |
| County | Livingston |
| Nearest City | Brighton |
| River/Stream | South Ore Creek |
| Coordinates | 42.61056, -83.73917 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 50 ft |
| Year Completed | 1951 (75 years old) |
Storage & Hydraulics
| NID Storage | 400 acre-ft |
| Max Storage | 400 acre-ft |
| Normal Storage | 230 acre-ft |
| Surface Area | 146 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 185 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Livingston County Dr. Commissioner |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 11/02/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MI00806 |
| Federal ID | MI00806 |
| More Info | State Dam Safety Program |