Greenfield Mills Dam
Greenfield Mills Dam is an earth dam located in LaGrange County, Indiana, built in 1835. It carries a Significant hazard potential classification and has a poor condition assessment.
About Greenfield Mills Dam
Greenfield Mills Dam is a dam in LaGrange, Indiana. The dam is owned by David Rinkel (private). It impounds the Fawn River.
The dam stands 27 feet tall and stretches 410 feet across, creates a reservoir covering 13 acres, has a maximum storage capacity of 275 acre-feet, and collects water from a drainage area of 97 square miles. Completed in 1835, the structure is one of the older dams in the region, with over a century and a half of service.
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. The most recent inspection on record was 04/25/2018.
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Location
| State | Indiana |
| County | LaGrange |
| River/Stream | Fawn River |
| Coordinates | 41.75075, -85.22497 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 410 ft |
| Year Completed | 1835 (191 years old) |
Storage & Hydraulics
| NID Storage | 275 acre-ft |
| Max Storage | 275 acre-ft |
| Normal Storage | 74 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 97 sq mi |
| Max Discharge | 2,700 cfs |
| Spillway Type | None |
Ownership & Safety
| Owner | David Rinkel |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 04/25/2018 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IN00797 |
| Federal ID | IN00797 |
| More Info | State Dam Safety Program |