SR 31 & 53 S Main over Scioto River #
Hardin County, Ohio · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 31 & 53 S Main over Scioto River # in Hardin 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 1968, making it 57 years old at the 2025 inventory.
- It carries about 9,687 vehicles a day (traffic count year 2018).
- Its listed owner is the state highway agency.
- It is one of 186 of the 277 inventoried bridges in Hardin County rated good (67.1%); 15 (5.4%) are rated poor.
- 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 → (40.643, -83.60819)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 9 | Excellent condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Continuous prestressed concrete stringer or multi-beam girder |
| Length | about 145 ft |
| Location | 0.45 mi. North of SR53 |
| NBI structure number | 3300366 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Ohio department of transportation.
Busiest bridges in Hardin County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Usr 68 over Taylor Creek | 1962 | 8,002 | Good |
| US68/SR67S.DETROIT over Scioto River # | 1983 | 7,361 | Good |
| SR 309 over Conrail Railroad | 1941 | 7,134 | Good |
| Usr 68 over Cessna Creek | 1988 | 5,889 | Fair |
| SR 235 over Hog Creek | 1989 | 4,748 | Good |
| SR 31 over Panther Creek | 1941 | 4,611 | Good |
All bridges nearby: Hardin County, OH bridge conditions · every bridge in Hardin County · Ohio bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.