Henson Dam
Henson Dam is an earth dam located in Lapeer County, Michigan, built in 1999. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Henson Dam
The primary purpose of Henson Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Bill Henson (private). It impounds the Tributary To Hemingway Lake near Marathon Township.
The dam stands 27 feet tall and stretches 2,700 feet across, creates a reservoir covering 66 acres, has a maximum storage capacity of 800 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1999, the structure is 27 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 10/15/2019.
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Location
| State | Michigan |
| County | Lapeer |
| Nearest City | Marathon Township |
| River/Stream | Tributary To Hemingway Lake |
| Coordinates | 43.20869, -83.44412 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 2,700 ft |
| Year Completed | 1999 (27 years old) |
Storage & Hydraulics
| NID Storage | 800 acre-ft |
| Max Storage | 800 acre-ft |
| Normal Storage | 211 acre-ft |
| Surface Area | 66 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Bill Henson |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/15/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MI00904 |
| Federal ID | MI00904 |
| More Info | State Dam Safety Program |