I 495 & Access Rps over Water Merrimack River
PoorEssex County, Massachusetts · At Merrimac River · Structure no. L040352X6DOTNBI
- Built
- 1962
- 63 years old
- Condition
- Poor
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 967 ft
- 8 main spans
- Daily traffic
- 79,000
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I 495 & Access Rps over Water Merrimack River is a steel stringer/multi-beam or girder carrying I 495 & Access Rps over Water Merrimack River in Essex County, Massachusetts. It was built in 1962, 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 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 79,000 vehicles a day, roughly 3% of them trucks, projected to reach 74,227 by 2031. The structure is 967 ft (294.7 m) long and 85 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 495 & Access Rps over Water Merrimack River built?
It was built in 1962, making it 63 years old in 2025.
What condition is I 495 & Access Rps over Water Merrimack River 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 October 2024.
How much traffic does I 495 & Access Rps over Water Merrimack River carry?
About 79,000 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is I 495 & Access Rps over Water Merrimack River?
The structure is 967 ft (294.7 m) long with a longest span of 124 ft (37.8 m) and a deck 85 ft wide.
Who owns I 495 & Access Rps over Water Merrimack River?
It is owned by the State Highway Agency.