ST 1 A/Main ST over Water Neponset River
GoodNorfolk County, Massachusetts · Adjacent to North Street · Structure no. W03024BP1DOTNBI
- Built
- 2025
- 0 years old
- Condition
- Good
- inspected December 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 45 ft
- 1 main span
- Daily traffic
- 40,862
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
ST 1 A/Main ST over Water Neponset River is a prestressed concrete tee beam carrying ST 1 A/Main ST over Water Neponset River in Norfolk County, Massachusetts. It was built in 2025, so it is 0 years old, younger 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 40,862 vehicles a day, roughly 3% of them trucks. The structure is 45 ft (13.8 m) long and 59 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was ST 1 A/Main ST over Water Neponset River built?
It was built in 2025, making it 0 years old in 2025.
What condition is ST 1 A/Main ST over Water Neponset River 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 December 2024.
How much traffic does ST 1 A/Main ST over Water Neponset River carry?
About 40,862 vehicles per day (2024 count), of which roughly 3% are trucks.
How long is ST 1 A/Main ST over Water Neponset River?
The structure is 45 ft (13.8 m) long with a longest span of 42 ft (12.8 m) and a deck 59 ft wide.
Who owns ST 1 A/Main ST over Water Neponset River?
It is owned by the State Highway Agency.