Standish Dam is a gravity dam located in Lenawee County, Michigan, built in 1914. It carries a Significant hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 14 ft14 ft tall and 330 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Standish Dam
The primary purpose of Standish Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City of Tecumseh (local government). It impounds the River Raisin near Tecumseh.
The dam stands 14 feet tall and stretches 330 feet across, creates a reservoir covering 13 acres, has a maximum storage capacity of 179 acre-feet, and collects water from a drainage area of 256 square miles. Completed in 1914, the structure is over a century 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 11/07/2017.
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Location
| State | Michigan |
| County | Lenawee |
| Nearest City | Tecumseh |
| River/Stream | River Raisin |
| Coordinates | 42.01500, -83.93361 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 330 ft |
| Year Completed | 1914 (112 years old) |
Storage & Hydraulics
| NID Storage | 179 acre-ft |
| Max Storage | 179 acre-ft |
| Normal Storage | 55 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 256 sq mi |
| Max Discharge | 4,030 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | City of Tecumseh |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 11/07/2017 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MI00592 |
| Federal ID | MI00592 |
| More Info | State Dam Safety Program |