ST 28 Nb/Columbus over Comb I 90 &csx &orng LN
FairSuffolk County, Massachusetts · .32 KM E.Copley Place S65 · Structure no. B160464RFDOTNBI
- Built
- 1965
- 60 years old, rebuilt 1994
- Condition
- Fair
- inspected January 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 306 ft
- 4 main spans
- Daily traffic
- 15,000
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
ST 28 Nb/Columbus over Comb I 90 &csx &orng LN is a steel stringer/multi-beam or girder carrying ST 28 Nb/Columbus over Comb I 90 &csx &orng LN in Suffolk County, Massachusetts. It was built in 1965 and reconstructed in 1994, so it is 60 years old, younger than the Massachusetts average of 63.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 15,000 vehicles a day, roughly 9% of them trucks, projected to reach 175 by 2032. The structure is 306 ft (93.3 m) long and 83 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was ST 28 Nb/Columbus over Comb I 90 &csx &orng LN built?
It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1994.
What condition is ST 28 Nb/Columbus over Comb I 90 &csx &orng LN in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2023.
How much traffic does ST 28 Nb/Columbus over Comb I 90 &csx &orng LN carry?
About 15,000 vehicles per day (2017 count), of which roughly 9% are trucks.
How long is ST 28 Nb/Columbus over Comb I 90 &csx &orng LN?
The structure is 306 ft (93.3 m) long with a longest span of 75 ft (22.8 m) and a deck 83 ft wide.
Who owns ST 28 Nb/Columbus over Comb I 90 &csx &orng LN?
It is owned by the State Highway Agency.