Structure 9301000000000 · Cass County, IL
Carries Fas577 over Lost Creek Branch, 3.5 Mi E Beardstown.
Set by its lowest-rated component: Deck and Superstructure at 6 of 9.
How ratings work23 ft end to end. 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 or the layout of the shorter spans, so those are drawn as typical for a box-beam bridge.
| State | Illinois |
| County | Cass |
| Location | 3.5 Mi E Beardstown |
| Carries | Fas577 |
| Crosses | Lost Creek Branch |
| Coordinates | 40.01987, -90.35416 |
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 23.3 ft (7.1 m) |
| Max Span | 22.3 ft (6.8 m) |
| Deck Width | 36.4 ft (11.1 m) |
| Deck Area | 78.8 sq m |
| Main Spans | 1 |
| Year Built | 1936 (reconstructed 1985) |
| Avg Daily Traffic | 650 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
| Last Inspection | January 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 009301000000000 |
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.