I-69 NB over CSX RR John Diehl Dt
DeKalb County, Indiana · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I-69 NB over CSX RR John Diehl Dt in DeKalb County, Indiana, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1963 and reconstructed in 2017, making it 62 years old at the 2025 inventory.
- It carries about 15,519 vehicles a day (traffic count year 2020).
- Its listed owner is the state highway agency.
- It is one of 58 of the 149 inventoried bridges in DeKalb County rated good (38.9%); 2 (1.3%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated March 2023, on a 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (41.35316, -85.08762)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 257 ft |
| Location | 01.02 S SR 8 |
| NBI structure number | 040610 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
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.