HWY Adams ST over Water Neponset River
FairSuffolk County, Massachusetts · Over Neponset Riv at Milt · Structure no. B16003381MUNNBI
- Built
- 1765
- 260 years old, rebuilt 2006
- Condition
- Fair
- inspected November 2024
- Type
- Arch - Deck
- Masonry
- Length
- 119 ft
- 2 main spans
- Daily traffic
- 32,845
- 2024 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
HWY Adams ST over Water Neponset River is a masonry arch - deck carrying HWY Adams ST over Water Neponset River in Suffolk County, Massachusetts. It was built in 1765 and reconstructed in 2006, so it is 260 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 32,845 vehicles a day, roughly 2% of them trucks, projected to reach 34,113 by 2031. The structure is 119 ft (36.3 m) long and 60 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was HWY Adams ST over Water Neponset River built?
It was built in 1765, making it 260 years old in 2025. It was reconstructed in 2006.
What condition is HWY Adams ST over Water Neponset 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 November 2024.
How much traffic does HWY Adams ST over Water Neponset River carry?
About 32,845 vehicles per day (2024 count), of which roughly 2% are trucks.
How long is HWY Adams ST over Water Neponset River?
The structure is 119 ft (36.3 m) long with a longest span of 32 ft (9.8 m) and a deck 60 ft wide.
Who owns HWY Adams ST over Water Neponset River?
It is owned by the City or Municipal Highway Agency.