HWY Monument ST over Water Concord River
FairMiddlesex County, Massachusetts · 2.9 KM N of Rt 2 · Structure no. C190132CWMUNNBI
- Built
- 1877
- 148 years old, rebuilt 2009
- Condition
- Fair
- inspected March 2023
- Type
- Arch - Deck
- Masonry
- Length
- 188 ft
- 4 main spans
- Daily traffic
- 6,607
- 2019 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
HWY Monument ST over Water Concord River is a masonry arch - deck carrying HWY Monument ST over Water Concord River in Middlesex County, Massachusetts. It was built in 1877 and reconstructed in 2009, so it is 148 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 6,607 vehicles a day, roughly 3% of them trucks, projected to reach 14,687 by 2032. The structure is 188 ft (57.3 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 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 HWY Monument ST over Water Concord River built?
It was built in 1877, making it 148 years old in 2025. It was reconstructed in 2009.
What condition is HWY Monument ST over Water Concord 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 March 2023.
How much traffic does HWY Monument ST over Water Concord River carry?
About 6,607 vehicles per day (2019 count), of which roughly 3% are trucks.
How long is HWY Monument ST over Water Concord River?
The structure is 188 ft (57.3 m) long with a longest span of 29 ft (8.8 m) and a deck 24 ft wide.
Who owns HWY Monument ST over Water Concord River?
It is owned by the Town or Township Highway Agency.