Route 66 over Coginchaug River
GoodMiddlesex County, Connecticut · 105 Ft W of Route 157 · Structure no. 04266
- Built
- 1979
- 46 years old
- Condition
- Good
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 82 ft
- 1 main span
- Daily traffic
- 25,400
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Route 66 over Coginchaug River is a steel stringer/multi-beam or girder carrying Route 66 over Coginchaug River in Middlesex County, Connecticut. It was built in 1979, so it is 46 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 25,400 vehicles a day, roughly 6% of them trucks, projected to reach 37,742 by 2042. The structure is 82 ft (25 m) long and 73 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 Route 66 over Coginchaug River built?
It was built in 1979, making it 46 years old in 2025.
What condition is Route 66 over Coginchaug 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 October 2023.
How much traffic does Route 66 over Coginchaug River carry?
About 25,400 vehicles per day (2022 count), of which roughly 6% are trucks.
How long is Route 66 over Coginchaug River?
The structure is 82 ft (25 m) long with a longest span of 77 ft (23.5 m) and a deck 73 ft wide.
Who owns Route 66 over Coginchaug River?
It is owned by the State Highway Agency.