ST 3 A/Gorham ST over I 495
PoorMiddlesex County, Massachusetts · 1.25 MI W RT495/RT3 · Structure no. C080392DHDOTNBI
- Built
- 1962
- 63 years old
- Condition
- Poor
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 268 ft
- 5 main spans
- Daily traffic
- 84,000
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
ST 3 A/Gorham ST over I 495 is a steel stringer/multi-beam or girder carrying ST 3 A/Gorham ST over I 495 in Middlesex 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 84,000 vehicles a day, roughly 1% of them trucks, projected to reach 17,846 by 2032. The structure is 268 ft (81.7 m) long and 54 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was ST 3 A/Gorham ST over I 495 built?
It was built in 1962, making it 63 years old in 2025.
What condition is ST 3 A/Gorham ST over I 495 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 March 2023.
How much traffic does ST 3 A/Gorham ST over I 495 carry?
About 84,000 vehicles per day (2023 count), of which roughly 1% are trucks.
How long is ST 3 A/Gorham ST over I 495?
The structure is 268 ft (81.7 m) long with a longest span of 78 ft (23.8 m) and a deck 54 ft wide.
Who owns ST 3 A/Gorham ST over I 495?
It is owned by the State Highway Agency.