HWY Aiken ST over Water Merrimack River
FairMiddlesex County, Massachusetts · At Merrimack River · Structure no. L150202C0MUNNBI
- Built
- 1883
- 142 years old, rebuilt 1998
- Condition
- Fair
- inspected May 2024
- Type
- Truss - Thru
- Aluminum, Wrought Iron, or Cast Iron
- Length
- 780 ft
- 5 main spans
- Daily traffic
- 26,000
- 2024 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
HWY Aiken ST over Water Merrimack River is a aluminum, wrought iron, or cast iron truss - thru carrying HWY Aiken ST over Water Merrimack River in Middlesex County, Massachusetts. It was built in 1883 and reconstructed in 1998, so it is 142 years old, older than the Massachusetts average of 63.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 26,000 vehicles a day, roughly 3% of them trucks, projected to reach 21,163 by 2031. The structure is 780 ft (237.7 m) long and 51 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 HWY Aiken ST over Water Merrimack River built?
It was built in 1883, making it 142 years old in 2025. It was reconstructed in 1998.
What condition is HWY Aiken ST over Water Merrimack River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.
How much traffic does HWY Aiken ST over Water Merrimack River carry?
About 26,000 vehicles per day (2024 count), of which roughly 3% are trucks.
How long is HWY Aiken ST over Water Merrimack River?
The structure is 780 ft (237.7 m) long with a longest span of 155 ft (47.2 m) and a deck 51 ft wide.
Who owns HWY Aiken ST over Water Merrimack River?
It is owned by the City or Municipal Highway Agency.