NB Ir 71 over SR 48
Warren County, Ohio · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- NB Ir 71 over SR 48 in Warren 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 1965 and reconstructed in 2000, making it 60 years old at the 2025 inventory.
- It carries about 31,629 vehicles a day (traffic count year 2015).
- Its listed owner is the state highway agency.
- It is one of 205 of the 338 inventoried bridges in Warren County rated good (60.7%); 18 (5.3%) 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 September 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 → (39.3834, -84.22063)
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 301 ft |
| Location | over SR 48 |
| NBI structure number | 8302138 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2023 |
| Inspection interval (item 91) | 24 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 Warren County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| IR75 over Millers Creek I&o RR | 2010 | 102,957 | Good |
| IR75 over Shaker Creek | 2010 | 102,957 | Fair |
| Ir 75 over Trb Shaker Cr(clarks Rn) | 1960 | 102,957 | Fair |
| Ir 75 Ramp over over Hendrickson Run | 2009 | 93,130 | Good |
| I75 Ramp over Dicks Creek | 1960 | 91,260 | Poor |
| Rmp-wes Ro Rd-i71s over Ir-71 | 1973 | 76,025 | Good |
All bridges nearby: Warren County, OH bridge conditions · every bridge in Warren County · Ohio bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.