Ch 15 over Unnamed Creek
Good Condition85 years old625 vehicles/day
Location
| State | Illinois |
| County | Rock Island |
| Location | Port Byron |
| Carries | Ch 15 |
| Crosses | Unnamed Creek |
| Coordinates | 41.59368, -90.33043 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 25.9 ft (7.9 m) |
| Max Span | 12.1 ft (3.7 m) |
| Deck Area | 82.2 sq m |
| Main Spans | 2 |
| Year Built | 1941 |
Traffic
| Avg Daily Traffic | 625 (2023) |
| Truck Traffic | 9% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2022 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 081500100000000 |