Fas 1781 over Carlyle Lake
Fair Condition63 years old500 vehicles/day
Location
| State | Illinois |
| County | Clinton |
| Location | 2 Mi SW Keyesport |
| Carries | Fas 1781 |
| Crosses | Carlyle Lake |
| Coordinates | 38.72224, -89.29141 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 5 (Fair) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 146.0 ft (44.5 m) |
| Max Span | 51.8 ft (15.8 m) |
| Deck Width | 27.6 ft (8.4 m) |
| Deck Area | 373.8 sq m |
| Main Spans | 3 |
| Year Built | 1963 |
Traffic
| Avg Daily Traffic | 500 (2020) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 125 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 014301300000000 |