Tr-491 over Trib Little Hickory
Fayette County, Illinois · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Tr-491 over Trib Little Hickory in Fayette County, Illinois, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1940, making it 85 years old at the 2025 inventory.
- It carries about 75 vehicles a day (traffic count year 2023).
- Its listed owner is a town or township highway agency.
- It is one of 137 of the 356 inventoried bridges in Fayette County rated fair (38.5%); 16 (4.5%) 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 February 2025, on a 24-month routine inspection cycle.
- 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 → (38.88524, -88.96215)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Concrete slab |
| Length | about 21 ft |
| Location | 5 Mi Wnw St Peter |
| NBI structure number | 026322200000000 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | February 2025 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in Fayette County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Fai-70 over Owl Creek | 1966 | 25,800 | Fair |
| Fai-70 over Tr-32 | 1965 | 25,800 | Fair |
| Fai-70 over Stream | 1963 | 23,900 | Fair |
| Fai 70 over Stream | 1962 | 23,800 | Fair |
| Fai-70 over Stream | 1948 | 22,700 | Fair |
| Fai-57 over East Fork Kaskaskia | 1970 | 18,100 | Fair |
All bridges nearby: Fayette County, IL bridge conditions · every bridge in Fayette County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.