Route 146 over West River
New Haven County, Connecticut · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Route 146 over West River in New Haven County, Connecticut, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- It was built in 1910 and reconstructed in 1982, making it 115 years old at the 2025 inventory.
- It carries about 5,500 vehicles a day (traffic count year 2022).
- 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 → (41.27911, -72.68787)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 4 | Poor condition |
| Superstructure | 4 | Poor condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 57 ft |
| Location | 0.4 Mi W of Route 77 |
| NBI structure number | 04379 |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Connecticut department of transportation.
All bridges nearby: New Haven County, CT bridge conditions · Connecticut bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.