Twin Bridge Road over Iron Stream
FairNew Haven County, Connecticut · 1.0 MI S of Route 80 · Structure no. 04861
- Built
- 1900
- 125 years old, rebuilt 1955
- Condition
- Fair
- inspected November 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 28 ft
- 1 main span
- Daily traffic
- 258
- 2023 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Twin Bridge Road over Iron Stream is a steel stringer/multi-beam or girder carrying Twin Bridge Road over Iron Stream in New Haven County, Connecticut. It was built in 1900 and reconstructed in 1955, so it is 125 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 258 vehicles a day, roughly 7% of them trucks, projected to reach 383 by 2043. The structure is 28 ft (8.5 m) long and 18 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Twin Bridge Road over Iron Stream built?
It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1955.
What condition is Twin Bridge Road over Iron Stream 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 November 2023.
How much traffic does Twin Bridge Road over Iron Stream carry?
About 258 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is Twin Bridge Road over Iron Stream?
The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 18 ft wide.
Who owns Twin Bridge Road over Iron Stream?
It is owned by the Town or Township Highway Agency.