SR 4 over Kankakee River
LaPorte County, Indiana · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 4 over Kankakee River in LaPorte County, Indiana, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1995, making it 30 years old at the 2025 inventory.
- It carries about 1,120 vehicles a day (traffic count year 2020).
- Its listed owner is the state highway agency.
- It is one of 134 of the 227 inventoried bridges in LaPorte County rated fair (59.0%); 15 (6.6%) 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 → (41.55021, -86.51174)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 5 | Fair condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 85 ft |
| Location | 05.01 W SR 23 |
| NBI structure number | 001450 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Indiana department of transportation.
Busiest bridges in LaPorte County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-94 WB over East Br Trail Creek | 1969 | 37,476 | Good |
| I-94 EB over Nictd RR | 1969 | 37,476 | Good |
| I-94 WB over Norris Ditch No 1 | 1971 | 27,527 | Good |
| I-94 WB over Norris Ditch No 2 | 1971 | 27,527 | Fair |
| I-94 EB over Norris Ditch No 3 | 1971 | 27,527 | Good |
| I-94 WB over Norris Ditch No 3 | 1971 | 27,527 | Good |
All bridges nearby: LaPorte County, IN bridge conditions · every bridge in LaPorte County · Indiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.