I-355 over Bn RR
DuPage County, Illinois · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I-355 over Bn RR in DuPage County, Illinois, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1989, making it 36 years old at the 2025 inventory.
- It carries about 147,200 vehicles a day (traffic count year 2023).
- It is one of 124 of the 345 inventoried bridges in DuPage County rated good (35.9%); 26 (7.5%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (41.79731, -88.05705)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 191 ft |
| Location | 1M.E.OF Il-53 |
| NBI structure number | 022997900000000 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in DuPage County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-88 over I-355 | 1989 | 169,900 | Fair |
| I-88 over I-355 NB to I-88 WB | 1989 | 169,900 | Fair |
| I- 55 over Madison St | 1959 | 150,000 | Fair |
| I-355 NB & SB over US-34 | 1989 | 147,200 | Fair |
| I-355 NB & SB over Hitchcock Ave. | 1989 | 147,200 | Fair |
| I88 WB E-w Toll over Naperville/wheat Rd | 2008 | 146,000 | Good |
All bridges nearby: DuPage County, IL bridge conditions · every bridge in DuPage County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.