Structure 5589 · Blair County, PA
Carries I-99 / US 220 over Private Road, .2 Mi.n.of Duncansville.
A culvert 20 ft across. 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 | Pennsylvania |
| County | Blair |
| Location | .2 Mi.n.of Duncansville |
| Carries | I-99 / US 220 |
| Crosses | Private Road |
| Coordinates | 40.43288, -78.42622 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 20.0 ft (6.1 m) |
| Max Span | 15.1 ft (4.6 m) |
| Deck Area | 258.6 sq m |
| Main Spans | 1 |
| Year Built | 1983 |
| Avg Daily Traffic | 16,449 (2023) |
| Truck Traffic | 13% |
| Lanes On Bridge | 2 |
| Last Inspection | May 2023 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | Not applicable |
| Structure Number | 000000000005589 |
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.