N Siedschlag Road over Rock Run
Good Condition40 years old50 vehicles/day
Location
| State | Illinois |
| County | Stephenson |
| Location | 4 Mi N Of Rock City |
| Carries | N Siedschlag Road |
| Crosses | Rock Run |
| Coordinates | 42.46432, -89.46831 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 55.1 ft (16.8 m) |
| Max Span | 53.1 ft (16.2 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 122.6 sq m |
| Main Spans | 1 |
| Year Built | 1986 |
Traffic
| Avg Daily Traffic | 50 (2020) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 48 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 089325700000000 |