Willow RD over Rock Creek
Good Condition28 years old50 vehicles/day
Location
| State | Illinois |
| County | Carroll |
| Location | 2 Mi. S. Of Lanark |
| Carries | Willow RD |
| Crosses | Rock Creek |
| Coordinates | 42.06629, -89.84034 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 56.4 ft (17.2 m) |
| Max Span | 55.4 ft (16.9 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 125.6 sq m |
| Main Spans | 1 |
| Year Built | 1998 |
Traffic
| Avg Daily Traffic | 50 (2021) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 48 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 008382000000000 |