Thayer Road over I-65 Nb/sb
Newton County, Indiana · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Thayer Road over I-65 Nb/sb in Newton County, Indiana, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1966 and reconstructed in 2004, making it 59 years old at the 2025 inventory.
- It carries about 1,807 vehicles a day (traffic count year 2004).
- Its listed owner is the state highway agency.
- It is one of 93 of the 172 inventoried bridges in Newton County rated fair (54.1%); 5 (2.9%) 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 May 2023, on a 24-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 → (41.17418, -87.27736)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 289 ft |
| Location | 02.15 N SR 10 |
| NBI structure number | 038230 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Indiana department of transportation.
Busiest bridges in Newton County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-65 NB over NS RR | 1966 | 46,144 | Good |
| I-65 SB over NS RR | 1966 | 40,644 | Fair |
| I-65 NB over Kankakee River | 2018 | 24,499 | Good |
| I-65 SB over Kankakee River | 2018 | 18,482 | Good |
| I-65 NB over Dehaan Ditch | 1966 | 14,069 | Fair |
| I-65 SB over Dehaan Ditch | 1966 | 14,069 | Fair |
All bridges nearby: Newton County, IN bridge conditions · every bridge in Newton County · Indiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.