Route 123 over Five Mile River
FairFairfield County, Connecticut · 100 No of Forest ST JCT · Structure no. 01333
- Built
- 1962
- 63 years old
- Condition
- Fair
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 35 ft
- 1 main span
- Daily traffic
- 8,400
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Route 123 over Five Mile River is a steel stringer/multi-beam or girder carrying Route 123 over Five Mile River in Fairfield County, Connecticut. It was built in 1962, so it is 63 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 8,400 vehicles a day, roughly 6% of them trucks, projected to reach 12,482 by 2040. The structure is 35 ft (10.7 m) long and 54 ft wide. If it were closed, the detour would be 14.9 mi (24 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| 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 123 over Five Mile River built?
It was built in 1962, making it 63 years old in 2025.
What condition is Route 123 over Five Mile 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 September 2023.
How much traffic does Route 123 over Five Mile River carry?
About 8,400 vehicles per day (2020 count), of which roughly 6% are trucks.
How long is Route 123 over Five Mile River?
The structure is 35 ft (10.7 m) long with a longest span of 28 ft (8.5 m) and a deck 54 ft wide.
Who owns Route 123 over Five Mile River?
It is owned by the State Highway Agency.