Structure 3370300000000 · Bond County, IL
Carries Tr 240 over Avery Branch, 3m SW Mulberry Grove.
Set by its lowest-rated component: Deck and Superstructure at 5 of 9.
How ratings work24 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 | Bond |
| Location | 3m SW Mulberry Grove |
| Carries | Tr 240 |
| Crosses | Avery Branch |
| Coordinates | 38.87418, -89.29340 |
| Material | Concrete |
| Design | Slab |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 21.0 ft (6.4 m) |
| Deck Width | 17.7 ft (5.4 m) |
| Deck Area | 39.4 sq m |
| Main Spans | 1 |
| Year Built | 1915 |
| Avg Daily Traffic | 10 (2020) |
| Lanes On Bridge | 1 |
| Last Inspection | January 2024 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 003370300000000 |
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.