Psb I-55 64;us 40 over Mississippi River
Fair Condition63 years old113,200 vehicles/day
Location
| State | Illinois |
| County | St. Clair |
| Location | Poplar ST Br - Modot |
| Carries | Psb I-55 64;us 40 |
| Crosses | Mississippi River |
| Coordinates | 38.61792, -90.18251 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Orthotropic |
| Total Length | 2165.0 ft (659.9 m) |
| Max Span | 600.1 ft (182.9 m) |
| Deck Width | 112.9 ft (34.4 m) |
| Deck Area | 22700.6 sq m |
| Main Spans | 5 |
| Year Built | 1963 |
Traffic
| Avg Daily Traffic | 113,200 (2024) |
| Truck Traffic | 13% |
| Lanes On Bridge | 8 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 082000400000000 |