Ingram Mill is a gravity dam located in Columbia County, Wisconsin, built in 1869. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 11 ft11 ft tall and 220 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 Ingram Mill
The primary purpose of Ingram Mill is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Banes, Adrain (private). It impounds the Jennings Creek.
The dam stands 11 feet tall and stretches 220 feet across, creates a reservoir covering 33 acres, has a maximum storage capacity of 150 acre-feet, and collects water from a drainage area of 17 square miles. Completed in 1869, the structure is one of the older dams in the region, with over a century and a half of service.
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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 08/18/2020.
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Location
| State | Wisconsin |
| County | Columbia |
| Nearest City | None |
| River/Stream | Jennings Creek |
| Coordinates | 43.49020, -89.22555 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 220 ft |
| Year Completed | 1869 (157 years old) |
Storage & Hydraulics
| NID Storage | 150 acre-ft |
| Max Storage | 150 acre-ft |
| Normal Storage | 80 acre-ft |
| Surface Area | 33 acres |
| Drainage Area | 17 sq mi |
| Max Discharge | 615 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Banes, Adrain |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 08/18/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00246 |
| Federal ID | WI00246 |
| More Info | State Dam Safety Program |