ST 16 Mendon ST over Water Blackstone River
PoorWorcester County, Massachusetts · .6 Mi. E. of ST-122 · Structure no. U020111LTDOTNBI
- Built
- 1954
- 71 years old
- Condition
- Poor
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 79 ft
- 1 main span
- Daily traffic
- 10,157
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
ST 16 Mendon ST over Water Blackstone River is a steel stringer/multi-beam or girder carrying ST 16 Mendon ST over Water Blackstone River in Worcester County, Massachusetts. It was built in 1954, so it is 71 years old, older than the Massachusetts average of 63.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 10,157 vehicles a day, roughly 5% of them trucks, projected to reach 25,269 by 2032. The structure is 79 ft (24.1 m) long and 46 ft wide. If it were closed, the detour would be 6.8 mi (11 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was ST 16 Mendon ST over Water Blackstone River built?
It was built in 1954, making it 71 years old in 2025.
What condition is ST 16 Mendon ST over Water Blackstone River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.
How much traffic does ST 16 Mendon ST over Water Blackstone River carry?
About 10,157 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is ST 16 Mendon ST over Water Blackstone River?
The structure is 79 ft (24.1 m) long with a longest span of 75 ft (22.9 m) and a deck 46 ft wide.
Who owns ST 16 Mendon ST over Water Blackstone River?
It is owned by the State Highway Agency.