US 20 Plainfld ST over I 91
FairHampden County, Massachusetts · JCT of I-91 & US 20A · Structure no. S2408710MDOTNBI
- Built
- 1968
- 57 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 385 ft
- 4 main spans
- Daily traffic
- 31,251
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
US 20 Plainfld ST over I 91 is a steel continuous stringer/multi-beam or girder carrying US 20 Plainfld ST over I 91 in Hampden County, Massachusetts. It was built in 1968, so it is 57 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 31,251 vehicles a day, roughly 4% of them trucks, projected to reach 42,641 by 2032. The structure is 385 ft (117.5 m) long and 82 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 | 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 20 Plainfld ST over I 91 built?
It was built in 1968, making it 57 years old in 2025.
What condition is US 20 Plainfld ST over I 91 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 2024.
How much traffic does US 20 Plainfld ST over I 91 carry?
About 31,251 vehicles per day (2017 count), of which roughly 4% are trucks.
How long is US 20 Plainfld ST over I 91?
The structure is 385 ft (117.5 m) long with a longest span of 107 ft (32.7 m) and a deck 82 ft wide.
Who owns US 20 Plainfld ST over I 91?
It is owned by the State Highway Agency.