Allison Road over Little Darby Creek
Champaign County, Ohio · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Allison Road over Little Darby Creek in Champaign 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 1963, making it 62 years old at the 2025 inventory.
- It carries about 324 vehicles a day (traffic count year 2015).
- Its listed owner is the county highway agency.
- It is one of 170 of the 193 inventoried bridges in Champaign County rated good (88.1%); 2 (1.0%) 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 November 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 → (40.07167, -83.57833)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 43 ft |
| Location | .41 M W of Shy Road |
| NBI structure number | 1131338 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | November 2023 |
| 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 Champaign County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Usr 68 over Bogles Run | 1987 | 14,750 | Good |
| Usr-36 over Dugan Run | 1993 | 9,738 | Good |
| Usr 68 over I&o RR & Bikepath | 1999 | 7,375 | Good |
| Usr 68 over I&o RR & Bikepath | 1999 | 7,375 | Good |
| Usr 68 over Moores Run | 1999 | 7,375 | Good |
| Usr 68 over Moores Run | 1999 | 7,375 | Good |
All bridges nearby: Champaign County, OH bridge conditions · every bridge in Champaign County · Ohio bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.