Ir 70 over Twin Creek
Preble County, Ohio · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ir 70 over Twin Creek in Preble County, Ohio, 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 1964 and reconstructed in 2001, making it 61 years old at the 2025 inventory.
- It carries about 19,657 vehicles a day (traffic count year 2015).
- Its listed owner is the state highway agency.
- It is one of 226 of the 363 inventoried bridges in Preble County rated good (62.3%); 39 (10.7%) 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 June 2024, 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 → (39.83726, -84.53376)
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 225 ft |
| Location | 0.34 Mi E of SR 503 Int |
| NBI structure number | 6801501 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Ohio department of transportation.
Busiest bridges in Preble County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I70 over Tributary Twin Creek | 1964 | 39,313 | Fair |
| Ir 70 over Twin Creek | 1964 | 19,657 | Good |
| I70 WB over Goose Creek | 1964 | 17,871 | Good |
| I70 EB over Goose Creek | 1964 | 17,871 | Good |
| Ir 70 over Price CR;T413(PRS CR Rd) | 1964 | 17,871 | Fair |
| EB Ir 70 over Price CR T413(PRS CR Rd) | 1964 | 17,871 | Good |
All bridges nearby: Preble County, OH bridge conditions · every bridge in Preble County · Ohio bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.