Chestnut ST over Rock River
Fair Condition64 years old8,200 vehicles/day
Location
| State | Illinois |
| County | Winnebago |
| Location | 0.1 Mi E Of Main ST |
| Carries | Chestnut ST |
| Crosses | Rock River |
| Coordinates | 42.26890, -89.09402 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 448.2 ft (136.6 m) |
| Max Span | 110.9 ft (33.8 m) |
| Deck Width | 64.0 ft (19.5 m) |
| Deck Area | 2663.7 sq m |
| Main Spans | 4 |
| Year Built | 1962 (reconstructed 1998) |
Traffic
| Avg Daily Traffic | 8,200 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 101613300000000 |