ST107 Broadway over Water Mill Creek
FairSuffolk County, Massachusetts · In Chelsea · Structure no. C090209XADOTNBI
- Built
- 1993
- 32 years old
- Condition
- Fair
- inspected December 2024
- Type
- Slab
- Prestressed Concrete
- Length
- 55 ft
- 1 main span
- Daily traffic
- 25,300
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
ST107 Broadway over Water Mill Creek is a prestressed concrete slab carrying ST107 Broadway over Water Mill Creek in Suffolk County, Massachusetts. It was built in 1993, so it is 32 years old, younger 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 25,300 vehicles a day, roughly 9% of them trucks, projected to reach 47,853 by 2031. The structure is 55 ft (16.8 m) long and 67 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was ST107 Broadway over Water Mill Creek built?
It was built in 1993, making it 32 years old in 2025.
What condition is ST107 Broadway over Water Mill Creek 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 December 2024.
How much traffic does ST107 Broadway over Water Mill Creek carry?
About 25,300 vehicles per day (2024 count), of which roughly 9% are trucks.
How long is ST107 Broadway over Water Mill Creek?
The structure is 55 ft (16.8 m) long with a longest span of 51 ft (15.5 m) and a deck 67 ft wide.
Who owns ST107 Broadway over Water Mill Creek?
It is owned by the State Highway Agency.