Route 12 over Mill Brook
GoodWindham County, Connecticut · 1.6 MI S of Route 14A EB · Structure no. 00668
- Built
- 1920
- 105 years old, rebuilt 2018
- Condition
- Good
- inspected October 2024
- Type
- Slab
- Concrete
- Length
- 28 ft
- 1 main span
- Daily traffic
- 6,600
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Route 12 over Mill Brook is a concrete slab carrying Route 12 over Mill Brook in Windham County, Connecticut. It was built in 1920 and reconstructed in 2018, so it is 105 years old, older 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 6,600 vehicles a day, roughly 5% of them trucks, projected to reach 9,807 by 2042. The structure is 28 ft (8.5 m) long and 66 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| 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 12 over Mill Brook built?
It was built in 1920, making it 105 years old in 2025. It was reconstructed in 2018.
What condition is Route 12 over Mill Brook 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 October 2024.
How much traffic does Route 12 over Mill Brook carry?
About 6,600 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is Route 12 over Mill Brook?
The structure is 28 ft (8.5 m) long with a longest span of 24 ft (7.3 m) and a deck 66 ft wide.
Who owns Route 12 over Mill Brook?
It is owned by the State Highway Agency.