ST 1 A/Main ST over RR MBTA
PoorPosted for loadEssex County, Massachusetts · 1.6 MI N Rowley Town Hall · Structure no. R1100132PDOT634
- Built
- 1907
- 118 years old, rebuilt 1931
- Condition
- Poor
- inspected September 2023
- Type
- Mixed Types
- Concrete
- Length
- 123 ft
- 3 main spans
- Daily traffic
- 3,500
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
ST 1 A/Main ST over RR MBTA is a concrete mixed types carrying ST 1 A/Main ST over RR MBTA in Essex County, Massachusetts. It was built in 1907 and reconstructed in 1931, so it is 118 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. Its operating status is: posted for load restriction.
It carries about 3,500 vehicles a day, roughly 6% of them trucks, projected to reach 11,845 by 2032. The structure is 123 ft (37.5 m) long and 50 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was ST 1 A/Main ST over RR MBTA built?
It was built in 1907, making it 118 years old in 2025. It was reconstructed in 1931.
What condition is ST 1 A/Main ST over RR MBTA 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 2023.
How much traffic does ST 1 A/Main ST over RR MBTA carry?
About 3,500 vehicles per day (2024 count), of which roughly 6% are trucks.
How long is ST 1 A/Main ST over RR MBTA?
The structure is 123 ft (37.5 m) long with a longest span of 44 ft (13.4 m) and a deck 50 ft wide.
Who owns ST 1 A/Main ST over RR MBTA?
It is owned by the State Highway Agency.