I 495 SB over HWY Ramps a & B
FairEssex County, Massachusetts · .3 MI N Merrimac River · Structure no. L040392X8DOTNBI
- Built
- 1962
- 63 years old, rebuilt 2002
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 144 ft
- 3 main spans
- Daily traffic
- 64,284
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I 495 SB over HWY Ramps a & B is a steel stringer/multi-beam or girder carrying I 495 SB over HWY Ramps a & B in Essex County, Massachusetts. It was built in 1962 and reconstructed in 2002, so it is 63 years old, younger 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 64,284 vehicles a day, roughly 5% of them trucks, projected to reach 126,660 by 2031. The structure is 144 ft (43.9 m) long and 89 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 495 SB over HWY Ramps a & B built?
It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2002.
What condition is I 495 SB over HWY Ramps a & B 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 August 2024.
How much traffic does I 495 SB over HWY Ramps a & B carry?
About 64,284 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is I 495 SB over HWY Ramps a & B?
The structure is 144 ft (43.9 m) long with a longest span of 84 ft (25.6 m) and a deck 89 ft wide.
Who owns I 495 SB over HWY Ramps a & B?
It is owned by the State Highway Agency.