Mill Street over St Joseph River
DeKalb County, Indiana · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mill Street over St Joseph River in DeKalb County, Indiana, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1873 and reconstructed in 1981, making it 152 years old at the 2025 inventory.
- It carries about 200 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 89 of the 149 inventoried bridges in DeKalb County rated fair (59.7%); 2 (1.3%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (41.2814, -84.91461)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 5 | Fair condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Timber through truss |
| Length | about 225 ft |
| Location | 00.40 E of SR 1 |
| NBI structure number | 1700004 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Indiana department of transportation.
Busiest bridges in DeKalb County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-69 over Kruise Private Drive | 2001 | 30,849 | Fair |
| I-69 NB over SR 8 | 1963 | 16,361 | Good |
| I-69 SB over SR 8 | 1963 | 16,361 | Good |
| I-69 NB over Cedar Creek | 1963 | 15,907 | Good |
| I-69 SB over Cedar Creek | 1963 | 15,907 | Good |
| I-69 NB over Cedar Creek | 1963 | 15,634 | Good |
All bridges nearby: DeKalb County, IN bridge conditions · every bridge in DeKalb County · Indiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.