Ill 29 over Allens Grove Ditch
Good Condition67 years old2,450 vehicles/day
Location
| State | Illinois |
| County | Mason |
| Location | .5mi S Jct Us136& 29 |
| Carries | Ill 29 |
| Crosses | Allens Grove Ditch |
| Coordinates | 40.29755, -89.69676 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 20.7 ft (6.3 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Area | 80.6 sq m |
| Main Spans | 2 |
| Year Built | 1959 |
Traffic
| Avg Daily Traffic | 2,450 (2023) |
| Truck Traffic | 30% |
| 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 | 063200500000000 |