HWY Harrison Ave over Comb I 90 & Amtrak/Mbta
PoorSuffolk County, Massachusetts · .16 KM W. I93 S72 · Structure no. B160784RNDOTNBI
- Built
- 1965
- 60 years old
- Condition
- Poor
- inspected October 2021
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 209 ft
- 4 main spans
- Daily traffic
- 7,500
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
HWY Harrison Ave over Comb I 90 & Amtrak/Mbta is a steel stringer/multi-beam or girder carrying HWY Harrison Ave over Comb I 90 & Amtrak/Mbta in Suffolk County, Massachusetts. It was built in 1965, so it is 60 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.
It carries about 7,500 vehicles a day, roughly 10% of them trucks, projected to reach 14,056 by 2031. The structure is 209 ft (63.7 m) long and 66 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was HWY Harrison Ave over Comb I 90 & Amtrak/Mbta built?
It was built in 1965, making it 60 years old in 2025.
What condition is HWY Harrison Ave over Comb I 90 & Amtrak/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 October 2021.
How much traffic does HWY Harrison Ave over Comb I 90 & Amtrak/Mbta carry?
About 7,500 vehicles per day (2019 count), of which roughly 10% are trucks.
How long is HWY Harrison Ave over Comb I 90 & Amtrak/Mbta?
The structure is 209 ft (63.7 m) long with a longest span of 65 ft (19.8 m) and a deck 66 ft wide.
Who owns HWY Harrison Ave over Comb I 90 & Amtrak/Mbta?
It is owned by the State Highway Agency.