Ir-75 over CSX RR
Shelby County, Ohio · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ir-75 over CSX RR in Shelby County, Ohio, 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 1961, making it 64 years old at the 2025 inventory.
- It carries about 22,355 vehicles a day (traffic count year 2015).
- Its listed owner is the state highway agency.
- It is one of 67 of the 274 inventoried bridges in Shelby County rated fair (24.5%); 5 (1.8%) 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 August 2024, on a 12-month routine inspection cycle.
- 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 → (40.28188, -84.18273)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 140 ft |
| Location | .41MI. S. of Jct. SR-47 |
| NBI structure number | 7501862 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2024 |
| Inspection interval (item 91) | 12 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Ohio department of transportation.
Busiest bridges in Shelby County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ir-75 over Great Miami River | 2005 | 46,838 | Good |
| Ir-75 over Tr 39 Kirkwood Road | 1960 | 23,419 | Fair |
| Ir-75 over Tr 39 Kirkwood Road | 1960 | 23,419 | Good |
| Ir-75 over Tr 135 Vandemark Road | 1960 | 23,419 | Good |
| Ir-75 over Tr 135 Vandemark Road | 1960 | 23,419 | Good |
| SR-47 over Ir 75 | 1961 | 22,694 | Good |
All bridges nearby: Shelby County, OH bridge conditions · every bridge in Shelby County · Ohio bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.