Structure 63701600000000 · Mason County, IL
Carries Fap 614 (il 78) over Ditch, 1.50 M S US 136.
A culvert 23 ft across with 2 openings. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.
| State | Illinois |
| County | Mason |
| Location | 1.50 M S US 136 |
| Carries | Fap 614 (il 78) |
| Crosses | Ditch |
| Coordinates | 40.27517, -90.07790 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 23.0 ft (7 m) |
| Max Span | 5.9 ft (1.8 m) |
| Deck Area | 68.6 sq m |
| Main Spans | 2 |
| Year Built | 1978 |
| Avg Daily Traffic | 2,250 (2023) |
| Truck Traffic | 12% |
| Lanes On Bridge | 2 |
| Last Inspection | March 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | Not applicable |
| Structure Number | 063701600000000 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.