I 93 over ST 16 Myst Val Pky
PoorMiddlesex County, Massachusetts · 1 MI S of JCT I93 & SR60 · Structure no. M120393B3DOTNBI
- Built
- 1960
- 65 years old, rebuilt 2011
- Condition
- Poor
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 325 ft
- 4 main spans
- Daily traffic
- 182,420
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
I 93 over ST 16 Myst Val Pky is a steel stringer/multi-beam or girder carrying I 93 over ST 16 Myst Val Pky in Middlesex County, Massachusetts. It was built in 1960 and reconstructed in 2011, so it is 65 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. Its operating status is: open, would be posted or closed except for temporary shoring.
It carries about 182,420 vehicles a day, roughly 10% of them trucks, projected to reach 285,853 by 2033. The structure is 325 ft (99.1 m) long and 139 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 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 93 over ST 16 Myst Val Pky built?
It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2011.
What condition is I 93 over ST 16 Myst Val Pky 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 January 2024.
How much traffic does I 93 over ST 16 Myst Val Pky carry?
About 182,420 vehicles per day (2018 count), of which roughly 10% are trucks.
How long is I 93 over ST 16 Myst Val Pky?
The structure is 325 ft (99.1 m) long with a longest span of 85 ft (25.9 m) and a deck 139 ft wide.
Who owns I 93 over ST 16 Myst Val Pky?
It is owned by the State Highway Agency.