Tr-83 (knapp Road) over Tunnison Creek
Fair Condition65 years old75 vehicles/day
Location
| State | Illinois |
| County | Winnebago |
| Location | 0.5 Mi W Harrison RD |
| Carries | Tr-83 (knapp Road) |
| Crosses | Tunnison Creek |
| Coordinates | 42.37722, -89.20303 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 5 (Fair) |
| Culvert | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 40.7 ft (12.4 m) |
| Max Span | 13.5 ft (4.1 m) |
| Deck Area | 90.5 sq m |
| Main Spans | 3 |
| Year Built | 1961 |
Traffic
| Avg Daily Traffic | 75 (2017) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 101505400000000 |