Tr 20a over South Fork Lake Fork
Fair Condition39 years old35 vehicles/day
Location
| State | Illinois |
| County | Logan |
| Location | 4.5 Mi NW Warrensbur |
| Carries | Tr 20a |
| Crosses | South Fork Lake Fork |
| Coordinates | 39.94729, -89.14375 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 107.9 ft (32.9 m) |
| Max Span | 36.1 ft (11 m) |
| Deck Width | 24.3 ft (7.4 m) |
| Deck Area | 243.5 sq m |
| Main Spans | 3 |
| Year Built | 1987 |
Traffic
| Avg Daily Traffic | 35 (2020) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2023 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 058330100000000 |