Route 171 over INTERSTATE-84
FairTolland County, Connecticut · 0.5 MI FR Mass State Line · Structure no. 00850
- Built
- 1954
- 71 years old, rebuilt 1986
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 165 ft
- 2 main spans
- Daily traffic
- 1,800
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
Route 171 over INTERSTATE-84 is a steel stringer/multi-beam or girder carrying Route 171 over INTERSTATE-84 in Tolland County, Connecticut. It was built in 1954 and reconstructed in 1986, so it is 71 years old, older than the Connecticut average of 56.7 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 1,800 vehicles a day, roughly 6% of them trucks, projected to reach 2,675 by 2037. The structure is 165 ft (50.4 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 7 Good | Some minor problems. |
| 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 Route 171 over INTERSTATE-84 built?
It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1986.
What condition is Route 171 over INTERSTATE-84 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 June 2023.
How much traffic does Route 171 over INTERSTATE-84 carry?
About 1,800 vehicles per day (2017 count), of which roughly 6% are trucks.
How long is Route 171 over INTERSTATE-84?
The structure is 165 ft (50.4 m) long with a longest span of 80 ft (24.4 m) and a deck 36 ft wide.
Who owns Route 171 over INTERSTATE-84?
It is owned by the State Highway Agency.