I 495 SB over HWY Amesbury Line RD
PoorEssex County, Massachusetts · 500 SE of ST-110 · Structure no. H120382X0DOTNBI
- Built
- 1964
- 61 years old
- Condition
- Poor
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 112 ft
- 3 main spans
- Daily traffic
- 30,681
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I 495 SB over HWY Amesbury Line RD is a steel stringer/multi-beam or girder carrying I 495 SB over HWY Amesbury Line RD in Essex County, Massachusetts. It was built in 1964, so it is 61 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. Its operating status is: open, would be posted or closed except for temporary shoring.
It carries about 30,681 vehicles a day, roughly 6% of them trucks, projected to reach 94,758 by 2032. The structure is 112 ft (34 m) long and 56 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 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, 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 495 SB over HWY Amesbury Line RD built?
It was built in 1964, making it 61 years old in 2025.
What condition is I 495 SB over HWY Amesbury Line RD 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 March 2023.
How much traffic does I 495 SB over HWY Amesbury Line RD carry?
About 30,681 vehicles per day (2024 count), of which roughly 6% are trucks.
How long is I 495 SB over HWY Amesbury Line RD?
The structure is 112 ft (34 m) long with a longest span of 45 ft (13.8 m) and a deck 56 ft wide.
Who owns I 495 SB over HWY Amesbury Line RD?
It is owned by the State Highway Agency.