Ill 143 over Locust Fork
Bond County, Illinois · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ill 143 over Locust Fork in Bond County, Illinois, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1926, making it 99 years old at the 2025 inventory.
- It carries about 2,200 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 70 of the 162 inventoried bridges in Bond County rated fair (43.2%); 18 (11.1%) 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 May 2024, 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 → (38.77877, -89.55997)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 5 | 5 | Fair condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 22 ft |
| Location | Pierron |
| NBI structure number | 003201000000000 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2024 |
| Inspection interval (item 91) | 24 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 Bond County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Fai 70 WB over Trib to Sugar Creek | 1965 | 13,450 | Good |
| Fai 70 EB over Trib to Sugar Creek | 1965 | 13,450 | Fair |
| Fai 70 WB over W Br Shoal Creek | 1967 | 13,100 | Poor |
| Fai 70 EB over W Br Shoal Creek | 1967 | 13,100 | Poor |
| Fai 70 EB over Mid Fk Shoal Creek | 1967 | 13,100 | Poor |
| Fai 70 WB over Mid Fk Shoal Creek | 1967 | 13,100 | Poor |
All bridges nearby: Bond County, IL bridge conditions · every bridge in Bond County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.