Riverdale Road over Grand River
Ashtabula County, Ohio · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Riverdale Road over Grand River in Ashtabula County, Ohio, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1874, making it 151 years old at the 2025 inventory.
- It carries about 148 vehicles a day (traffic count year 2015).
- Its listed owner is the county highway agency.
- It is one of 82 of the 304 inventoried bridges in Ashtabula County rated fair (27.0%); 10 (3.3%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (41.67333, -80.87194)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Timber girder and floorbeam |
| Length | about 113 ft |
| Location | 1.2 Mi. E. of CH9 |
| NBI structure number | 0432849 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Ohio department of transportation.
Busiest bridges in Ashtabula County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I.r. 90 over over W Reserve Greenwy T | 2013 | 24,635 | Good |
| US 20 over over Atb-sr 11-26.86 | 1963 | 17,550 | Good |
| US 20 over Ashtabula Viaduct | 2000 | 14,871 | Fair |
| Ir 90 over over Norfolk Southern RR | 1959 | 12,705 | Good |
| Ir 90 over over Norfolk Southern RR | 1959 | 12,705 | Good |
| I.r. 90 over Ashtabula River | 1959 | 12,705 | Good |
All bridges nearby: Ashtabula County, OH bridge conditions · every bridge in Ashtabula County · Ohio bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.