SR170 over I76 Ohio Tpk
Mahoning County, Ohio · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR170 over I76 Ohio Tpk in Mahoning County, Ohio, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1954 and reconstructed in 1989, making it 71 years old at the 2025 inventory.
- It carries about 2,226 vehicles a day (traffic count year 2015).
- It is one of 135 of the 348 inventoried bridges in Mahoning County rated fair (38.8%); 19 (5.5%) 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 March 2024, on a 12-month routine inspection cycle.
- 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 → (40.9174, -80.53298)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 283 ft |
| Location | 1.7MI East of Exit 17 |
| NBI structure number | 5029945 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 2024 |
| Inspection interval (item 91) | 12 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 Mahoning County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ir 80 over over Metroparks Bike Tr | 2007 | 50,139 | Good |
| I.r. 680 over Price Rd & Mill Creek | 1963 | 49,352 | Fair |
| I.r. 680 over Edwards St Cr-566 | 1963 | 49,352 | Fair |
| I.r. 680 over Oak Hill Ave Cr-536 | 1963 | 49,285 | Fair |
| I.r. 680 over over Delason Ave | 1962 | 46,297 | Good |
| I.r. 680 over over Youngstown & SE RR | 1963 | 46,297 | Good |
All bridges nearby: Mahoning County, OH bridge conditions · every bridge in Mahoning County · Ohio bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.