I 495 NB over ST 28 Sb/N Main ST
PoorEssex County, Massachusetts · 2.4 MI N I93 · Structure no. A090362XWDOTNBI
- Built
- 1962
- 63 years old
- Condition
- Poor
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 132 ft
- 3 main spans
- Daily traffic
- 48,915
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I 495 NB over ST 28 Sb/N Main ST is a steel stringer/multi-beam or girder carrying I 495 NB over ST 28 Sb/N Main ST in Essex County, Massachusetts. It was built in 1962, so it is 63 years old, younger than the Massachusetts average of 63.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: open, would be posted or closed except for temporary shoring.
It carries about 48,915 vehicles a day, roughly 8% of them trucks, projected to reach 150,191 by 2033. The structure is 132 ft (40.2 m) long and 60 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 495 NB over ST 28 Sb/N Main ST built?
It was built in 1962, making it 63 years old in 2025.
What condition is I 495 NB over ST 28 Sb/N Main ST in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2024.
How much traffic does I 495 NB over ST 28 Sb/N Main ST carry?
About 48,915 vehicles per day (2022 count), of which roughly 8% are trucks.
How long is I 495 NB over ST 28 Sb/N Main ST?
The structure is 132 ft (40.2 m) long with a longest span of 51 ft (15.5 m) and a deck 60 ft wide.
Who owns I 495 NB over ST 28 Sb/N Main ST?
It is owned by the State Highway Agency.