Il 2 over Rock River
Fair Condition32 years old4,850 vehicles/day
Location
| State | Illinois |
| County | Lee |
| Location | At Grand Detour |
| Carries | Il 2 |
| Crosses | Rock River |
| Coordinates | 41.89086, -89.41866 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 1032.5 ft (314.7 m) |
| Max Span | 290.0 ft (88.4 m) |
| Deck Width | 42.3 ft (12.9 m) |
| Deck Area | 4059.6 sq m |
| Main Spans | 4 |
| Year Built | 1994 |
Traffic
| Avg Daily Traffic | 4,850 (2023) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 052006300000000 |