Hwy Dalton St over Comb I 90&CAMBRIA&CSX
Suffolk County, Massachusetts · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Hwy Dalton St over Comb I 90&CAMBRIA&CSX in Suffolk County, Massachusetts, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- It was built in 1850 and reconstructed in 1964, making it 175 years old at the 2025 inventory.
- It carries about 17,844 vehicles a day (traffic count year 2017).
- 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 → (42.34755, -71.08546)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 4 | Poor condition |
| Superstructure | 4 | Poor condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 204 ft |
| Location | at Hynes Convntn Centr |
| NBI structure number | B1638238TMUNNBI |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Massachusetts department of transportation.
All bridges nearby: Suffolk County, MA bridge conditions · Massachusetts bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.