Humphrey Street over Mill River
New Haven County, Connecticut · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Humphrey Street over Mill River in New Haven County, Connecticut, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- It was built in 1908 and reconstructed in 1973, making it 117 years old at the 2025 inventory.
- It carries about 4,100 vehicles a day (traffic count year 2021).
- Its listed owner is a city or municipal 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 → (41.3135, -72.90704)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 7 | Good condition |
| Substructure | 4 | Poor condition |
Bridge details
| Structure | Prestressed concrete slab |
| Length | about 84 ft |
| Location | 0.1 Mi E of I-91 |
| NBI structure number | 03813 |
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.