Upper Long Lake Dam
Upper Long Lake Dam is an earth dam located in Lapeer County, Michigan, built in 1992. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Upper Long Lake Dam
Upper Long Lake Dam is a dam in Lapeer, Michigan. The dam is owned by Mdnr Wildlife (state). It impounds the Abbott Drain near Millville.
The dam stands 7 feet tall and stretches 660 feet across, creates a reservoir covering 215 acres, has a maximum storage capacity of 1,100 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1992, the structure is 34 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. The most recent inspection on record was 10/29/2014. That was over 11 years ago.
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Location
| State | Michigan |
| County | Lapeer |
| Nearest City | Millville |
| River/Stream | Abbott Drain |
| Coordinates | 43.10222, -83.23139 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 7 ft |
| Dam Height | 7 ft |
| Dam Length | 660 ft |
| Year Completed | 1992 (34 years old) |
Storage & Hydraulics
| NID Storage | 1,100 acre-ft |
| Max Storage | 1,100 acre-ft |
| Normal Storage | 300 acre-ft |
| Surface Area | 215 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 310 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | MDNR Wildlife |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/29/2014 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MI02572 |
| Federal ID | MI02572 |
| More Info | State Dam Safety Program |