Flook Dam
Flook Dam is an earth dam located in Washtenaw County, Michigan, built in 1965. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Flook Dam
Flook Dam is a dam in Washtenaw, Michigan. The dam is owned by Washtenaw County Wrc (private). It impounds the Huron River near Dexter.
The dam stands 12 feet tall and stretches 400 feet across, creates a reservoir covering 769 acres, has a maximum storage capacity of 6,000 acre-feet, and collects water from a drainage area of 534 square miles. Completed in 1965, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in 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 09/18/2020.
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Location
| State | Michigan |
| County | Washtenaw |
| Nearest City | Dexter |
| River/Stream | Huron River |
| Coordinates | 42.41457, -83.90675 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 400 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 6,000 acre-ft |
| Max Storage | 6,000 acre-ft |
| Normal Storage | 4,000 acre-ft |
| Surface Area | 769 acres |
| Drainage Area | 534 sq mi |
| Max Discharge | 7,880 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner | Washtenaw County WRC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/18/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MI00008 |
| Federal ID | MI00008 |
| More Info | State Dam Safety Program |