I 93 Ramp Sn over Comb MBTA & Orange Line
GoodSuffolk County, Massachusetts · I93 US1 Interchange · Structure no. B166059TTDOTNBI
- Built
- 1999
- 26 years old
- Condition
- Good
- inspected September 2022
- Type
- Box Beam or Girders - Multiple
- Steel Continuous
- Length
- 863 ft
- 6 main spans
- Daily traffic
- 11,575
- 2016 count
- Owner
- State
- State Highway Agency
About this bridge
I 93 Ramp Sn over Comb MBTA & Orange Line is a steel continuous box beam or girders - multiple carrying I 93 Ramp Sn over Comb MBTA & Orange Line in Suffolk County, Massachusetts. It was built in 1999, so it is 26 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 11,575 vehicles a day, roughly 4% of them trucks. The structure is 863 ft (263 m) long and 26 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 93 Ramp Sn over Comb MBTA & Orange Line built?
It was built in 1999, making it 26 years old in 2025.
What condition is I 93 Ramp Sn over Comb MBTA & Orange Line 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 2022.
How much traffic does I 93 Ramp Sn over Comb MBTA & Orange Line carry?
About 11,575 vehicles per day (2016 count), of which roughly 4% are trucks.
How long is I 93 Ramp Sn over Comb MBTA & Orange Line?
The structure is 863 ft (263 m) long with a longest span of 153 ft (46.6 m) and a deck 26 ft wide.
Who owns I 93 Ramp Sn over Comb MBTA & Orange Line?
It is owned by the State Highway Agency.