Gerdern Drive over Palmer Creek
Good Condition31 years old450 vehicles/day
Location
| State | Illinois |
| County | Monroe |
| Location | City Of Columbia |
| Carries | Gerdern Drive |
| Crosses | Palmer Creek |
| Coordinates | 38.46106, -90.21576 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 51.5 ft (15.7 m) |
| Max Span | 48.9 ft (14.9 m) |
| Deck Width | 29.9 ft (9.1 m) |
| Deck Area | 142.9 sq m |
| Main Spans | 1 |
| Year Built | 1995 |
Traffic
| Avg Daily Traffic | 450 (2024) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 222 |
| Inspection Frequency | Every 48 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 067600500000000 |