ST 10 South ST over Water Mill River
FairHampshire County, Massachusetts · 1.2 M S JCT ST 9 · Structure no. N190530V1DOTNBI
- Built
- 1939
- 86 years old
- Condition
- Fair
- inspected June 2024
- Type
- Tee Beam
- Concrete
- Length
- 105 ft
- 2 main spans
- Daily traffic
- 21,100
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
ST 10 South ST over Water Mill River is a concrete tee beam carrying ST 10 South ST over Water Mill River in Hampshire County, Massachusetts. It was built in 1939, so it is 86 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 21,100 vehicles a day, roughly 7% of them trucks, projected to reach 23,502 by 2031. The structure is 105 ft (32.1 m) long and 57 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 | 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 ST 10 South ST over Water Mill River built?
It was built in 1939, making it 86 years old in 2025.
What condition is ST 10 South ST over Water Mill 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 June 2024.
How much traffic does ST 10 South ST over Water Mill River carry?
About 21,100 vehicles per day (2024 count), of which roughly 7% are trucks.
How long is ST 10 South ST over Water Mill River?
The structure is 105 ft (32.1 m) long with a longest span of 50 ft (15.3 m) and a deck 57 ft wide.
Who owns ST 10 South ST over Water Mill River?
It is owned by the State Highway Agency.