I-88 WB over Rock River
Fair Condition54 years old6,850 vehicles/day
Location
| State | Illinois |
| County | Whiteside |
| Location | 3 Mi W Rock Falls |
| Carries | I-88 WB |
| Crosses | Rock River |
| Coordinates | 41.75640, -89.77317 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Box Beam - Single/Spread |
| Total Length | 1200.1 ft (365.8 m) |
| Max Span | 169.9 ft (51.8 m) |
| Deck Width | 42.0 ft (12.8 m) |
| Deck Area | 4682.2 sq m |
| Main Spans | 8 |
| Year Built | 1972 (reconstructed 2002) |
Traffic
| Avg Daily Traffic | 6,850 (2023) |
| Truck Traffic | 36% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 323 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 098008000000000 |