Structure 46200200000000 · Kankakee County, IL
Carries US 45&52 over N Br Of Rock Creek, 0.3 Mi N Manteno RD.
A culvert 22 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 | Kankakee |
| Location | 0.3 Mi N Manteno RD |
| Carries | US 45&52 |
| Crosses | N Br Of Rock Creek |
| Coordinates | 41.25425, -87.87776 |
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 21.7 ft (6.6 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Width | 46.6 ft (14.2 m) |
| Deck Area | 93.7 sq m |
| Main Spans | 2 |
| Year Built | 1967 |
| Avg Daily Traffic | 5,900 (2023) |
| Truck Traffic | 14% |
| Lanes On Bridge | 2 |
| Last Inspection | February 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 046200200000000 |
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.