Ill RT 75 over Rock Run Creek
Fair Condition15 years old3,300 vehicles/day
Location
| State | Illinois |
| County | Stephenson |
| Location | 1.3 Mi E Rock City |
| Carries | Ill RT 75 |
| Crosses | Rock Run Creek |
| Coordinates | 42.41738, -89.44265 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 8 (Very Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 9 (Excellent) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 117.8 ft (35.9 m) |
| Max Span | 57.7 ft (17.6 m) |
| Deck Width | 39.0 ft (11.9 m) |
| Deck Area | 427.2 sq m |
| Main Spans | 2 |
| Year Built | 2011 |
Traffic
| Avg Daily Traffic | 3,300 (2023) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 089008400000000 |