I-90 EB over 129TH Street
Lake County, Indiana · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I-90 EB over 129TH Street in Lake County, Indiana, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- It was built in 1956 and reconstructed in 1984, making it 69 years old at the 2025 inventory.
- It carries about 18,085 vehicles a day (traffic count year 2015).
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (41.66097, -87.51767)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 8 | Very good condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 4 | Poor condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 210 ft |
| Location | 01.21 W US 41 |
| NBI structure number | 045960 |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Indiana department of transportation.
All bridges nearby: Lake County, IN bridge conditions · Indiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.