ST169 Mechanic ST over Water Quinebaug River
FairWorcester County, Massachusetts · O.2 Mi. Nth. of ST-131 · Structure no. S210061YADOTNBI
- Built
- 1956
- 69 years old
- Condition
- Fair
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 95 ft
- 1 main span
- Daily traffic
- 7,136
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
ST169 Mechanic ST over Water Quinebaug River is a steel stringer/multi-beam or girder carrying ST169 Mechanic ST over Water Quinebaug River in Worcester County, Massachusetts. It was built in 1956, so it is 69 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 7,136 vehicles a day, roughly 10% of them trucks, projected to reach 13,424 by 2032. The structure is 95 ft (29 m) long and 52 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 ST169 Mechanic ST over Water Quinebaug River built?
It was built in 1956, making it 69 years old in 2025.
What condition is ST169 Mechanic ST over Water Quinebaug 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 August 2023.
How much traffic does ST169 Mechanic ST over Water Quinebaug River carry?
About 7,136 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is ST169 Mechanic ST over Water Quinebaug River?
The structure is 95 ft (29 m) long with a longest span of 90 ft (27.4 m) and a deck 52 ft wide.
Who owns ST169 Mechanic ST over Water Quinebaug River?
It is owned by the State Highway Agency.