HWY Merrimack ST over Water Western Canal
FairMiddlesex County, Massachusetts · At Suffolk ST · Structure no. L1504787HMUNNBI
- Built
- 1831
- 194 years old, rebuilt 1938
- Condition
- Fair
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 26 ft
- 1 main span
- Daily traffic
- 17,900
- 2020 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
HWY Merrimack ST over Water Western Canal is a steel stringer/multi-beam or girder carrying HWY Merrimack ST over Water Western Canal in Middlesex County, Massachusetts. It was built in 1831 and reconstructed in 1938, so it is 194 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 17,900 vehicles a day, roughly 4% of them trucks, projected to reach 22,110 by 2018. The structure is 26 ft (7.9 m) long and 72 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was HWY Merrimack ST over Water Western Canal built?
It was built in 1831, making it 194 years old in 2025. It was reconstructed in 1938.
What condition is HWY Merrimack ST over Water Western Canal 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 April 2024.
How much traffic does HWY Merrimack ST over Water Western Canal carry?
About 17,900 vehicles per day (2020 count), of which roughly 4% are trucks.
How long is HWY Merrimack ST over Water Western Canal?
The structure is 26 ft (7.9 m) long with a longest span of 26 ft (7.9 m) and a deck 72 ft wide.
Who owns HWY Merrimack ST over Water Western Canal?
It is owned by the City or Municipal Highway Agency.