I 57 SB over Marcum Branch
Fair Condition64 years old17,150 vehicles/day
Location
| State | Illinois |
| County | Franklin |
| Location | 3 Mi N Benton |
| Carries | I 57 SB |
| Crosses | Marcum Branch |
| Coordinates | 38.04629, -88.92465 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 127.6 ft (38.9 m) |
| Max Span | 45.6 ft (13.9 m) |
| Deck Width | 43.3 ft (13.2 m) |
| Deck Area | 513.5 sq m |
| Main Spans | 3 |
| Year Built | 1962 (reconstructed 1994) |
Traffic
| Avg Daily Traffic | 17,150 (2024) |
| Truck Traffic | 48% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 225 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 028001100000000 |