Ill 123 over Sangamon River
Fair Condition41 years old4,800 vehicles/day
Location
| State | Illinois |
| County | Menard |
| Location | .2mi E Petersburg |
| Carries | Ill 123 |
| Crosses | Sangamon River |
| Coordinates | 40.01322, -89.84068 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 7 — Countermeasures installed |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 921.3 ft (280.8 m) |
| Max Span | 213.9 ft (65.2 m) |
| Deck Width | 44.9 ft (13.7 m) |
| Deck Area | 3847.0 sq m |
| Main Spans | 3 |
| Year Built | 1985 |
Traffic
| Avg Daily Traffic | 4,800 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 065001600000000 |