I 93 NB Off Ramp over Comb Red Line & Relief
FairSuffolk County, Massachusetts · 2 MI S of JCT I90&I93 · Structure no. B162593EJDOTNBI
- Built
- 1958
- 67 years old, rebuilt 1984
- Condition
- Fair
- inspected December 2021
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 410 ft
- 5 main spans
- Daily traffic
- 7,400
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
I 93 NB Off Ramp over Comb Red Line & Relief is a steel stringer/multi-beam or girder carrying I 93 NB Off Ramp over Comb Red Line & Relief in Suffolk County, Massachusetts. It was built in 1958 and reconstructed in 1984, so it is 67 years old, older than the Massachusetts average of 63.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 7,400 vehicles a day, roughly 4% of them trucks, projected to reach 21,163 by 2032. The structure is 410 ft (125 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 93 NB Off Ramp over Comb Red Line & Relief built?
It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1984.
What condition is I 93 NB Off Ramp over Comb Red Line & Relief in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2021.
How much traffic does I 93 NB Off Ramp over Comb Red Line & Relief carry?
About 7,400 vehicles per day (2019 count), of which roughly 4% are trucks.
How long is I 93 NB Off Ramp over Comb Red Line & Relief?
The structure is 410 ft (125 m) long with a longest span of 86 ft (26.2 m) and a deck 29 ft wide.
Who owns I 93 NB Off Ramp over Comb Red Line & Relief?
It is owned by the State Highway Agency.