I-90 (WB) over Ill. Rte. 31
Kane County, Illinois · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I-90 (WB) over Ill. Rte. 31 in Kane County, Illinois, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2015, making it 10 years old at the 2025 inventory.
- It carries about 52,600 vehicles a day (traffic count year 2023).
- It is one of 153 of the 339 inventoried bridges in Kane County rated good (45.1%); 24 (7.1%) 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 August 2024, on a 24-month routine inspection cycle.
- 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 → (42.06724, -88.29183)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 129 ft |
| Location | 1.5 Mi. W. of IL 25 |
| NBI structure number | 045999200000000 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2024 |
| 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 Illinois department of transportation.
Busiest bridges in Kane County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-88 WB over Fox R - RR - Il 25 | 1958 | 86,200 | Fair |
| I-88 EB over Fox R - RR - Il 25 | 2008 | 86,200 | Fair |
| I-90 over S Br Kishwaukee Riv | 2014 | 76,200 | Good |
| I-90 over Stream | 1958 | 58,700 | Good |
| I-90 over Sleepy Hollow Rd | 2014 | 52,600 | Good |
| I-90 over Sleepy Hollow Rd | 2014 | 52,600 | Good |
All bridges nearby: Kane County, IL bridge conditions · every bridge in Kane County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.