Mill Plain Road over Mill River
GoodFairfield County, Connecticut · 2.0 MI N of I-95 · Structure no. 04204
- Built
- 2011
- 14 years old
- Condition
- Good
- inspected September 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 131 ft
- 2 main spans
- Daily traffic
- 8,800
- 2022 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Mill Plain Road over Mill River is a prestressed concrete box beam or girders - multiple carrying Mill Plain Road over Mill River in Fairfield County, Connecticut. It was built in 2011, so it is 14 years old, younger than the Connecticut average of 56.7 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 8,800 vehicles a day, roughly 3% of them trucks, projected to reach 13,076 by 2042. The structure is 131 ft (39.8 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mill Plain Road over Mill River built?
It was built in 2011, making it 14 years old in 2025.
What condition is Mill Plain Road over Mill River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.
How much traffic does Mill Plain Road over Mill River carry?
About 8,800 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is Mill Plain Road over Mill River?
The structure is 131 ft (39.8 m) long with a longest span of 62 ft (18.8 m) and a deck 45 ft wide.
Who owns Mill Plain Road over Mill River?
It is owned by the Town or Township Highway Agency.