Fau 9175 over Rock Spring Branch
Fair Condition54 years old11,400 vehicles/day
Location
| State | Illinois |
| County | St. Clair |
| Location | 0.5m N US 50 |
| Carries | Fau 9175 |
| Crosses | Rock Spring Branch |
| Coordinates | 38.58853, -89.87408 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 142.7 ft (43.5 m) |
| Max Span | 50.9 ft (15.5 m) |
| Deck Width | 45.9 ft (14 m) |
| Deck Area | 609 sq m |
| Main Spans | 3 |
| Year Built | 1972 |
Traffic
| Avg Daily Traffic | 11,400 (2023) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 082300700000000 |