CR 312 (22/A) over Tiffin River
Williams County, Ohio · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- CR 312 (22/A) over Tiffin River in Williams County, Ohio, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 8 (very good condition) on the 0-9 scale.
- It was built in 1996, making it 29 years old at the 2025 inventory.
- It carries about 707 vehicles a day (traffic count year 2015).
- Its listed owner is the county highway agency.
- It is one of 118 of the 241 inventoried bridges in Williams County rated good (49.0%); 8 (3.3%) 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 → (41.43119, -84.40117)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Superstructure | 8 | Very good condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 208 ft |
| Location | 01220 Rd 22/A |
| NBI structure number | 8630585 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Ohio department of transportation.
Busiest bridges in Williams County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| CR 2 Fish Creek Rd over Ir 80 Ohio Tpk | 1954 | 16,000 | Fair |
| Malcolm Church Rd over I80 Ohio Tpk | 1954 | 16,000 | Fair |
| Ricketts Bridge Rd over I80 Ohio Tpk | 1954 | 16,000 | Fair |
| W Eagle Church Rd over I80 Ohio Tpk | 1954 | 16,000 | Fair |
| Nettle CR Rd over I80 Ohio Tpk | 1954 | 16,000 | Fair |
| White Bridge Rd over I80 Ohio Tpk | 1954 | 16,000 | Fair |
All bridges nearby: Williams County, OH bridge conditions · every bridge in Williams County · Ohio bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.