SR 39 over Carnahan Ditch No 2
White County, Indiana · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 39 over Carnahan Ditch No 2 in White 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 1938 and reconstructed in 1968, making it 87 years old at the 2025 inventory.
- It carries about 2,665 vehicles a day (traffic count year 2020).
- Its listed owner is the state highway agency.
- It is one of 127 of the 214 inventoried bridges in White County rated fair (59.3%); 9 (4.2%) 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 December 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 → (40.84756, -86.74554)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Superstructure | 7 | 7 | Good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete deck arch |
| Length | about 26 ft |
| Location | 02.46 S SR 16 |
| NBI structure number | 013380 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | December 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Indiana department of transportation.
Busiest bridges in White County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-65 NB over Rayman Ditch | 1967 | 42,476 | Fair |
| I-65 SB over Rayman Ditch | 1967 | 42,476 | Fair |
| I-65 NB over Hoagland Ditch | 1968 | 41,719 | Fair |
| I-65 SB over Hoagland Ditch | 1968 | 41,719 | Fair |
| I-65 NB over Hollingsworth Ditch | 1968 | 41,719 | Fair |
| I-65 SB over Hollingsworth Ditch | 1968 | 41,719 | Fair |
All bridges nearby: White County, IN bridge conditions · every bridge in White County · Indiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.