284th Street over Copperas Creek
Good Condition39 years old100 vehicles/day
Location
| State | Illinois |
| County | Rock Island |
| Location | 4 M SW Illinois City |
| Carries | 284th Street |
| Crosses | Copperas Creek |
| Coordinates | 41.37359, -90.96570 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Box Beam - Multiple |
| Total Length | 166.0 ft (50.6 m) |
| Max Span | 70.9 ft (21.6 m) |
| Deck Width | 36.1 ft (11 m) |
| Deck Area | 556.6 sq m |
| Main Spans | 3 |
| Year Built | 1987 |
Traffic
| Avg Daily Traffic | 100 (2020) |
| Truck Traffic | 20% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2022 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 081310400000000 |