T-397 Biddle Road over Clover Creek
Blair County, Pennsylvania · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- T-397 Biddle Road over Clover Creek in Blair County, Pennsylvania, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- It was built in 1908 and reconstructed in 1955, making it 117 years old at the 2025 inventory.
- It carries about 667 vehicles a day (traffic count year 2024).
- Its listed owner is the county highway agency.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (40.42903, -78.20006)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Superstructure | 5 | Fair condition |
| Substructure | 2 | Critical condition |
Bridge details
| Structure | Concrete deck arch |
| Length | about 60 ft |
| Location | 2 Mi.s.of Williamsburg |
| NBI structure number | 000000000005965 |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Pennsylvania department of transportation.
All bridges nearby: Blair County, PA bridge conditions · Pennsylvania bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.