US 1 Bridge RD over Water Merrimack River
PoorEssex County, Massachusetts · At Merrimac River · Structure no. N110112TDDOTNBI
- Built
- 1976
- 49 years old
- Condition
- Poor
- inspected September 2024
- Type
- Movable - Bascule
- Steel
- Length
- 1,223 ft
- 1 main span
- Daily traffic
- 12,065
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 1 Bridge RD over Water Merrimack River is a steel movable - bascule carrying US 1 Bridge RD over Water Merrimack River in Essex County, Massachusetts. It was built in 1976, so it is 49 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.
It carries about 12,065 vehicles a day, roughly 10% of them trucks, projected to reach 11,687 by 2031. The structure is 1,223 ft (372.8 m) long and 82 ft wide. If it were closed, the detour would be 5 mi (8 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 US 1 Bridge RD over Water Merrimack River built?
It was built in 1976, making it 49 years old in 2025.
What condition is US 1 Bridge RD 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 September 2024.
How much traffic does US 1 Bridge RD over Water Merrimack River carry?
About 12,065 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is US 1 Bridge RD over Water Merrimack River?
The structure is 1,223 ft (372.8 m) long with a longest span of 145 ft (44.2 m) and a deck 82 ft wide.
Who owns US 1 Bridge RD over Water Merrimack River?
It is owned by the State Highway Agency.