Gregory State Game Area Dam #3 is an earth dam located in Livingston County, Michigan, built in 1965. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 8 ft8 ft tall and 475 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 Gregory State Game Area Dam #3
Gregory State Game Area Dam #3 is a dam in Livingston, Michigan. The dam is owned by Mdnr Wildlife (state). It impounds the Tributary to Honey Creek near Pinckney.
The dam stands 8 feet tall and stretches 475 feet across, creates a reservoir covering 80 acres, has a maximum storage capacity of 160 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1965, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 07/22/2016. That was over 10 years ago.
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Location
| State | Michigan |
| County | Livingston |
| Nearest City | Pinckney |
| River/Stream | Tributary to Honey Creek |
| Coordinates | 42.48320, -83.96697 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 475 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 160 acre-ft |
| Max Storage | 160 acre-ft |
| Normal Storage | 90 acre-ft |
| Surface Area | 80 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 300 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Mdnr Wildlife |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 07/22/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MI00802 |
| Federal ID | MI00802 |
| More Info | State Dam Safety Program |