Maple Avenue over Allyn Brook
GoodMiddlesex County, Connecticut · 0.20 MI S of Route 68 · Structure no. 04850
- Built
- 1957
- 68 years old, rebuilt 2004
- Condition
- Good
- inspected April 2022
- Type
- Slab
- Prestressed Concrete
- Length
- 30 ft
- 1 main span
- Daily traffic
- 1,124
- 2022 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Maple Avenue over Allyn Brook is a prestressed concrete slab carrying Maple Avenue over Allyn Brook in Middlesex County, Connecticut. It was built in 1957 and reconstructed in 2004, so it is 68 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 1,124 vehicles a day, roughly 6% of them trucks, projected to reach 1,670 by 2042. The structure is 30 ft (9.1 m) long and 39 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 Maple Avenue over Allyn Brook built?
It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2004.
What condition is Maple Avenue over Allyn 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 April 2022.
How much traffic does Maple Avenue over Allyn Brook carry?
About 1,124 vehicles per day (2022 count), of which roughly 6% are trucks.
How long is Maple Avenue over Allyn Brook?
The structure is 30 ft (9.1 m) long with a longest span of 27 ft (8.2 m) and a deck 39 ft wide.
Who owns Maple Avenue over Allyn Brook?
It is owned by the Town or Township Highway Agency.