Route 172 over Pomperaug River
FairNew Haven County, Connecticut · I 84 Exit 14 & 1 Mile Nor · Structure no. 01475
- Built
- 1939
- 86 years old, rebuilt 1991
- Condition
- Fair
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 167 ft
- 2 main spans
- Daily traffic
- 7,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Route 172 over Pomperaug River is a steel continuous stringer/multi-beam or girder carrying Route 172 over Pomperaug River in New Haven County, Connecticut. It was built in 1939 and reconstructed in 1991, so it is 86 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 6 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 7,000 vehicles a day, roughly 3% of them trucks, projected to reach 10,401 by 2040. The structure is 167 ft (50.9 m) long and 35 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Route 172 over Pomperaug River built?
It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1991.
What condition is Route 172 over Pomperaug River 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 December 2023.
How much traffic does Route 172 over Pomperaug River carry?
About 7,000 vehicles per day (2020 count), of which roughly 3% are trucks.
How long is Route 172 over Pomperaug River?
The structure is 167 ft (50.9 m) long with a longest span of 83 ft (25.4 m) and a deck 35 ft wide.
Who owns Route 172 over Pomperaug River?
It is owned by the State Highway Agency.