Fau 9241 over Hardin Ditch
St. Clair County, Illinois · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Fau 9241 over Hardin Ditch in St. Clair County, Illinois, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1991, making it 34 years old at the 2025 inventory.
- It carries about 2,000 vehicles a day (traffic count year 2024).
- Its listed owner is the county highway agency.
- It is one of 205 of the 485 inventoried bridges in St. Clair County rated fair (42.3%); 45 (9.3%) are rated poor.
- 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 → (38.60307, -90.06452)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 5 | Fair condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 70 ft |
| Location | 100S St. Clair Ave |
| NBI structure number | 082308300000000 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in St. Clair County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Psb I-55 64;US 40 over Mississippi River | 1963 | 113,200 | Fair |
| I-55/64; US 40 Psc over Trra | 1966 | 113,200 | Poor |
| I-55/64; US 40 EB over 4TH ST in E ST LOU | 1965 | 105,300 | Fair |
| EB 55/MLK Eb&wb Ap over 3RD ST EXIT to EStL | 1961 | 105,300 | Good |
| I-55/70;/64 over Csxrr Nsrr Trrarr | 1959 | 66,500 | Poor |
| I-55/64EB mainlne" over UPRR IL 3 ramp UPRR UPRR | 1995 | 56,600 | Fair |
All bridges nearby: St. Clair County, IL bridge conditions · every bridge in St. Clair County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.