Allegheny Street over Beaverdam Br.juniata Riv
Blair County, Pennsylvania · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Allegheny Street over Beaverdam Br.juniata Riv in Blair County, Pennsylvania, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1911 and reconstructed in 2021, making it 114 years old at the 2025 inventory.
- It carries about 7,061 vehicles a day (traffic count year 2023).
- Its listed owner is the county highway agency.
- It is one of 176 of the 338 inventoried bridges in Blair County rated fair (52.1%); 39 (11.5%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (40.42786, -78.39714)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Superstructure | 6 | Satisfactory condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete deck arch |
| Length | about 75 ft |
| Location | Hollidaysburg Borough |
| NBI structure number | 000000000005998 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Pennsylvania department of transportation.
Busiest bridges in Blair County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 4010 (17TH St) over Brush Run | 1985 | 25,718 | Good |
| SR 4010 (17TH St) over I-99 / US 220 | 1992 | 25,718 | Good |
| SR 4010 over SR 4009_NORFOLK So. RR | 1973 | 19,273 | Fair |
| Pa 36/ Pa 164 over Everett Railroad | 1951 | 18,566 | Fair |
| Pa 36 over Halter Creek | 1997 | 17,622 | Fair |
| Pa 36/ Pa 164 over Halter Creek | 1951 | 17,622 | Fair |
All bridges nearby: Blair County, PA bridge conditions · every bridge in Blair County · Pennsylvania bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.