Duffy Pond Dam
Duffy Pond Dam is an earth dam located in St. Clair County, Michigan, built in 1972. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Duffy Pond Dam
The primary purpose of Duffy Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Holy Trinity Greek Orth. Monastery (private). It impounds the Wolvin Drain near Saint Clair.
The dam stands 20 feet tall and stretches 300 feet across, creates a reservoir covering 26 acres, and has a maximum storage capacity of 410 acre-feet. Completed in 1972, 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. The most recent inspection on record was 12/16/2008. That was over 17 years ago.
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Location
| State | Michigan |
| County | St. Clair |
| Nearest City | Saint Clair |
| River/Stream | Wolvin Drain |
| Coordinates | 42.90667, -82.58500 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 300 ft |
| Year Completed | 1972 (54 years old) |
Storage & Hydraulics
| NID Storage | 410 acre-ft |
| Max Storage | 410 acre-ft |
| Normal Storage | 208 acre-ft |
| Surface Area | 26 acres |
| Max Discharge | 270 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Holy Trinity Greek Orth. Monastery |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 12/16/2008 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MI00478 |
| Federal ID | MI00478 |
| More Info | State Dam Safety Program |