Il 121 (fap 320) over Kaskaskia River
Fair Condition59 years old4,250 vehicles/day
Location
| State | Illinois |
| County | Moultrie |
| Location | N Of Allenville |
| Carries | Il 121 (fap 320) |
| Crosses | Kaskaskia River |
| Coordinates | 39.57270, -88.53262 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 498.4 ft (151.9 m) |
| Max Span | 96.5 ft (29.4 m) |
| Deck Width | 38.7 ft (11.8 m) |
| Deck Area | 1792.4 sq m |
| Main Spans | 6 |
| Year Built | 1967 (reconstructed 1999) |
Traffic
| Avg Daily Traffic | 4,250 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 070000400000000 |