Structure 51006000000000 · Lawrence County, IL
Carries Fr 505 over Stream, 1 Mi N Bridgeport.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 4 of 9.
How ratings work22 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 slab bridge.
| State | Illinois |
| County | Lawrence |
| Location | 1 Mi N Bridgeport |
| Carries | Fr 505 |
| Crosses | Stream |
| Coordinates | 38.73128, -87.76185 |
| Material | Concrete |
| Design | Slab |
| Total Length | 22.3 ft (6.8 m) |
| Max Span | 20.3 ft (6.2 m) |
| Deck Width | 25.9 ft (7.9 m) |
| Deck Area | 53.7 sq m |
| Main Spans | 1 |
| Year Built | 1910 |
| Avg Daily Traffic | 225 (2022) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
| Last Inspection | January 2025 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 051006000000000 |
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.