HWY Blue Hill Av over RR MBTA
PoorSuffolk County, Massachusetts · 1.2 KM N JCTSR28&SR138 · Structure no. B161653H3DOT634
- Built
- 1902
- 123 years old, rebuilt 1973
- Condition
- Poor
- inspected February 2022
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 143 ft
- 2 main spans
- Daily traffic
- 41,250
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
HWY Blue Hill Av over RR MBTA is a steel stringer/multi-beam or girder carrying HWY Blue Hill Av over RR MBTA in Suffolk County, Massachusetts. It was built in 1902 and reconstructed in 1973, so it is 123 years old, older 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 41,250 vehicles a day, roughly 5% of them trucks, projected to reach 69,173 by 2033. The structure is 143 ft (43.6 m) long and 120 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, 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 HWY Blue Hill Av over RR MBTA built?
It was built in 1902, making it 123 years old in 2025. It was reconstructed in 1973.
What condition is HWY Blue Hill Av over RR MBTA 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 2022.
How much traffic does HWY Blue Hill Av over RR MBTA carry?
About 41,250 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is HWY Blue Hill Av over RR MBTA?
The structure is 143 ft (43.6 m) long with a longest span of 78 ft (23.9 m) and a deck 120 ft wide.
Who owns HWY Blue Hill Av over RR MBTA?
It is owned by the State Highway Agency.