Green Oak Lake Dam
Green Oak Lake Dam is an earth dam located in Washtenaw County, Michigan, built in 1960. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Green Oak Lake Dam
The primary purpose of Green Oak Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Loch Alpine Improvement (private). It impounds the Tributary To Huron River near Delhi Mills.
The dam stands 20 feet tall and stretches 425 feet across, creates a reservoir covering 19 acres, has a maximum storage capacity of 200 acre-feet, and collects water from a drainage area of 7 square miles. Completed in 1960, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 11/10/2017.
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Location
| State | Michigan |
| County | Washtenaw |
| Nearest City | Delhi Mills |
| River/Stream | Tributary To Huron River |
| Coordinates | 42.33167, -83.82000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 425 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 200 acre-ft |
| Max Storage | 200 acre-ft |
| Normal Storage | 80 acre-ft |
| Surface Area | 19 acres |
| Drainage Area | 7 sq mi |
| Max Discharge | 625 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Loch Alpine Improvement |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/10/2017 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MI00736 |
| Federal ID | MI00736 |
| More Info | State Dam Safety Program |