I-99 / US 220 Nbl over 8th AVE Ext Blair Gap Rn
Fair Condition42 years old8,640 vehicles/day
Location
| State | Pennsylvania |
| County | Blair |
| Location | Duncansville |
| Carries | I-99 / US 220 Nbl |
| Crosses | 8th AVE Ext Blair Gap Rn |
| Coordinates | 40.43022, -78.42534 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 224.1 ft (68.3 m) |
| Max Span | 116.1 ft (35.4 m) |
| Deck Width | 45.6 ft (13.9 m) |
| Deck Area | 949.4 sq m |
| Main Spans | 2 |
| Year Built | 1984 (reconstructed 2013) |
Traffic
| Avg Daily Traffic | 8,640 (2023) |
| Truck Traffic | 15% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000005585 |