Tr 109 over Swan Lake Ditch
Poor Condition42 years old25 vehicles/day
Location
| State | Illinois |
| County | Mercer |
| Location | E.ctr-10-t14nr6w |
| Carries | Tr 109 |
| Crosses | Swan Lake Ditch |
| Coordinates | 41.22442, -91.05334 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 4 (Poor) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 67.9 ft (20.7 m) |
| Max Span | 65.0 ft (19.8 m) |
| Deck Width | 24.3 ft (7.4 m) |
| Deck Area | 153.2 sq m |
| Main Spans | 1 |
| Year Built | 1984 |
Traffic
| Avg Daily Traffic | 25 (2024) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 066501300000000 |