Tr 498 over Wihppoorwill Branch
Vermilion County, Illinois · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Tr 498 over Wihppoorwill Branch in Vermilion 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 2018, making it 7 years old at the 2025 inventory.
- It carries about 125 vehicles a day (traffic count year 2023).
- It is one of 144 of the 494 inventoried bridges in Vermilion County rated good (29.1%); 31 (6.3%) 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 2023, on a 48-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 → (39.986, -87.53245)
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 multiple box beam |
| Length | about 66 ft |
| Location | 5 Mi. E. of Gtown |
| NBI structure number | 092991000000000 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2023 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in Vermilion County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-74 over Feather Creek | 1959 | 25,200 | Fair |
| Il 1 US 150 (fap 3 over 14TH St(fau 7010) | 1966 | 24,700 | Fair |
| Il 1 US 150 (fap 3 over Vermilion River | 1957 | 23,100 | Fair |
| IL.1/US 150(FAP 33 over I-74 & CD16.23/16.33 | 1965 | 19,500 | Fair |
| Il 1 US 150 (fap 3 over Norfolk Southern Railway | 2003 | 19,500 | Good |
| FAP332(IL 1 US 150 over Grape Creek | 1991 | 18,900 | Fair |
All bridges nearby: Vermilion County, IL bridge conditions · every bridge in Vermilion County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.