SR 20 E Main St over over Twenty Mile Creek
Erie County, Pennsylvania · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 20 E Main St over over Twenty Mile Creek in Erie County, Pennsylvania, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- It was built in 1973 and reconstructed in 1976, making it 52 years old at the 2025 inventory.
- It carries about 2,785 vehicles a day (traffic count year 2024).
- Its listed owner is the state 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 → (42.23711, -79.77139)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 1 | Imminent failure condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 375 ft |
| Location | North East Township |
| NBI structure number | 000000000015936 |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Pennsylvania department of transportation.
All bridges nearby: Erie County, PA bridge conditions · Pennsylvania bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.