Ch-29 over Knob Creek
Fair Condition117 years old100 vehicles/day
Location
| State | Illinois |
| County | Jefferson |
| Location | 2.5 Mi Nnw Wville |
| Carries | Ch-29 |
| Crosses | Knob Creek |
| Coordinates | 38.25686, -89.05840 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Channel Beam |
| Total Length | 34.4 ft (10.5 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 26.2 ft (8 m) |
| Deck Area | 84 sq m |
| Main Spans | 1 |
| Year Built | 1909 |
Traffic
| Avg Daily Traffic | 100 (2021) |
| Truck Traffic | 13% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 041305800000000 |