ST 2 A/Mass Ave over ST 2 Commonwealth Ave
GoodSuffolk County, Massachusetts · Just S Charles Riv · Structure no. B1623738NMUNNBI
- Built
- 1937
- 88 years old, rebuilt 2018
- Condition
- Good
- inspected February 2025
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 52 ft
- 1 main span
- Daily traffic
- 22,241
- 2025 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
ST 2 A/Mass Ave over ST 2 Commonwealth Ave is a steel stringer/multi-beam or girder carrying ST 2 A/Mass Ave over ST 2 Commonwealth Ave in Suffolk County, Massachusetts. It was built in 1937 and reconstructed in 2018, so it is 88 years old, older than the Massachusetts average of 63.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 22,241 vehicles a day, roughly 7% of them trucks, projected to reach 46,905 by 2033. The structure is 52 ft (15.8 m) long and 95 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was ST 2 A/Mass Ave over ST 2 Commonwealth Ave built?
It was built in 1937, making it 88 years old in 2025. It was reconstructed in 2018.
What condition is ST 2 A/Mass Ave over ST 2 Commonwealth Ave in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2025.
How much traffic does ST 2 A/Mass Ave over ST 2 Commonwealth Ave carry?
About 22,241 vehicles per day (2025 count), of which roughly 7% are trucks.
How long is ST 2 A/Mass Ave over ST 2 Commonwealth Ave?
The structure is 52 ft (15.8 m) long with a longest span of 46 ft (14 m) and a deck 95 ft wide.
Who owns ST 2 A/Mass Ave over ST 2 Commonwealth Ave?
It is owned by the City or Municipal Highway Agency.