HWY Dorchstr Ave over Comb MBTA & Red LN
PoorClosed to trafficSuffolk County, Massachusetts · Over Red Line · Structure no. B161294VMMBTNBI
- Built
- 1924
- 101 years old, rebuilt 1975
- Condition
- Poor
- inspected April 2020
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 98 ft
- 1 main span
- Daily traffic
- 11,800
- 2012 count
- Owner
- State
- Other State Agency
About this bridge
HWY Dorchstr Ave over Comb MBTA & Red LN is a prestressed concrete box beam or girders - multiple carrying HWY Dorchstr Ave over Comb MBTA & Red LN in Suffolk County, Massachusetts. It was built in 1924 and reconstructed in 1975, so it is 101 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 3 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: closed to all traffic.
It carries about 11,800 vehicles a day, roughly 8% of them trucks, projected to reach 31,428 by 2032. The structure is 98 ft (29.9 m) long and 60 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was HWY Dorchstr Ave over Comb MBTA & Red LN built?
It was built in 1924, making it 101 years old in 2025. It was reconstructed in 1975.
What condition is HWY Dorchstr Ave over Comb MBTA & Red LN 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 April 2020.
How much traffic does HWY Dorchstr Ave over Comb MBTA & Red LN carry?
About 11,800 vehicles per day (2012 count), of which roughly 8% are trucks.
How long is HWY Dorchstr Ave over Comb MBTA & Red LN?
The structure is 98 ft (29.9 m) long with a longest span of 90 ft (27.4 m) and a deck 60 ft wide.
Who owns HWY Dorchstr Ave over Comb MBTA & Red LN?
It is owned by the Other State Agency.