Mill RD over Johnson Creek
Fair Condition37 years old50 vehicles/day
Location
| State | Illinois |
| County | Carroll |
| Location | 1.5 Mi S. Mt Carroll |
| Carries | Mill RD |
| Crosses | Johnson Creek |
| Coordinates | 42.05983, -89.98692 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 4 (Poor) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 56.4 ft (17.2 m) |
| Max Span | 53.8 ft (16.4 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 125.6 sq m |
| Main Spans | 1 |
| Year Built | 1989 |
Traffic
| Avg Daily Traffic | 50 (2021) |
| Truck Traffic | 12% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 008362200000000 |