I 290 over ST146 Millbury ST
GoodWorcester County, Massachusetts · MM16.8; 100 S Cambrg ST · Structure no. W44160AUGDOTNBI
- Built
- 2007
- 18 years old
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 470 ft
- 6 main spans
- Daily traffic
- 96,092
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I 290 over ST146 Millbury ST is a steel continuous stringer/multi-beam or girder carrying I 290 over ST146 Millbury ST in Worcester County, Massachusetts. It was built in 2007, so it is 18 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 96,092 vehicles a day, roughly 9% of them trucks, projected to reach 142,137 by 2031. The structure is 470 ft (143.2 m) long and 112 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 290 over ST146 Millbury ST built?
It was built in 2007, making it 18 years old in 2025.
What condition is I 290 over ST146 Millbury ST 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 September 2024.
How much traffic does I 290 over ST146 Millbury ST carry?
About 96,092 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is I 290 over ST146 Millbury ST?
The structure is 470 ft (143.2 m) long with a longest span of 80 ft (24.4 m) and a deck 112 ft wide.
Who owns I 290 over ST146 Millbury ST?
It is owned by the State Highway Agency.