St. Joseph River (in-channel) Dam
St. Joseph River (in-channel) Dam is a concrete dam located in Allen County, Indiana, built in 1933. It carries a Significant hazard potential classification and has a fair condition assessment.
About St. Joseph River (in-channel) Dam
The primary purpose of St. Joseph River (in-channel) Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of Fort Wayne (local government). It impounds the St. Joseph River.
The dam stands 10 feet tall and stretches 225 feet across, creates a reservoir covering 30 acres, has a maximum storage capacity of 874 acre-feet, and collects water from a drainage area of 1,060 square miles. Completed in 1933, the structure is well-established, with more than 75 years 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 04/19/2018.
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Location
| State | Indiana |
| County | Allen |
| River/Stream | St. Joseph River |
| Coordinates | 41.11260, -85.11667 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 225 ft |
| Year Completed | 1933 (93 years old) |
Storage & Hydraulics
| NID Storage | 874 acre-ft |
| Max Storage | 874 acre-ft |
| Normal Storage | 874 acre-ft |
| Surface Area | 30 acres |
| Drainage Area | 1,060 sq mi |
| Max Discharge | 11,985 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Water Supply |
| Owner | CITY OF FORT WAYNE |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 04/19/2018 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IN00811 |
| Federal ID | IN00811 |
| More Info | State Dam Safety Program |