I 93 over Water Merrimack River
PoorEssex County, Massachusetts · At Merrimac River · Structure no. A090222V0DOTNBI
- Built
- 1959
- 66 years old, rebuilt 1975
- Condition
- Poor
- inspected June 2023
- Type
- Girder and Floorbeam System
- Steel Continuous
- Length
- 775 ft
- 5 main spans
- Daily traffic
- 119,818
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I 93 over Water Merrimack River is a steel continuous girder and floorbeam system carrying I 93 over Water Merrimack River in Essex County, Massachusetts. It was built in 1959 and reconstructed in 1975, so it is 66 years old, older 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.
It carries about 119,818 vehicles a day, roughly 9% of them trucks, projected to reach 194,728 by 2032. The structure is 775 ft (236.2 m) long and 143 ft wide. If it were closed, the detour would be 6.2 mi (10 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. |
| 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 93 over Water Merrimack River built?
It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1975.
What condition is I 93 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 June 2023.
How much traffic does I 93 over Water Merrimack River carry?
About 119,818 vehicles per day (2022 count), of which roughly 9% are trucks.
How long is I 93 over Water Merrimack River?
The structure is 775 ft (236.2 m) long with a longest span of 175 ft (53.3 m) and a deck 143 ft wide.
Who owns I 93 over Water Merrimack River?
It is owned by the State Highway Agency.