Route 17 over Main Street Extension
FairMiddlesex County, Connecticut · 0.15 MI Off RT9SB Exit 13 · Structure no. 00860
- Built
- 1955
- 70 years old, rebuilt 1988
- Condition
- Fair
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 159 ft
- 3 main spans
- Daily traffic
- 10,200
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Route 17 over Main Street Extension is a steel continuous stringer/multi-beam or girder carrying Route 17 over Main Street Extension in Middlesex County, Connecticut. It was built in 1955 and reconstructed in 1988, so it is 70 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 10,200 vehicles a day, roughly 6% of them trucks, projected to reach 15,156 by 2042. The structure is 159 ft (48.5 m) long and 80 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 | 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 17 over Main Street Extension built?
It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1988.
What condition is Route 17 over Main Street Extension 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 July 2023.
How much traffic does Route 17 over Main Street Extension carry?
About 10,200 vehicles per day (2022 count), of which roughly 6% are trucks.
How long is Route 17 over Main Street Extension?
The structure is 159 ft (48.5 m) long with a longest span of 66 ft (20.1 m) and a deck 80 ft wide.
Who owns Route 17 over Main Street Extension?
It is owned by the State Highway Agency.