Ill 138 over Cahokia Creek
Fair Condition34 years old2,700 vehicles/day
Location
| State | Illinois |
| County | Macoupin |
| Location | 1.9mi W Jct Fai 55 |
| Carries | Ill 138 |
| Crosses | Cahokia Creek |
| Coordinates | 39.07884, -89.78198 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 126.0 ft (38.4 m) |
| Max Span | 44.9 ft (13.7 m) |
| Deck Width | 35.1 ft (10.7 m) |
| Deck Area | 410.9 sq m |
| Main Spans | 3 |
| Year Built | 1992 |
Traffic
| Avg Daily Traffic | 2,700 (2023) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 059005400000000 |