Jefferson Avenue over Mamaroneck River
GoodWestchester County, New York · At Marmaroneck · Structure no. 000000002225080
- Built
- 2013
- 12 years old
- Condition
- Good
- inspected November 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 84 ft
- 1 main span
- Daily traffic
- 4,103
- 2018 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Jefferson Avenue over Mamaroneck River is a prestressed concrete tee beam carrying Jefferson Avenue over Mamaroneck River in Westchester County, New York. It was built in 2013, so it is 12 years old, younger than the New York average of 53 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 4,103 vehicles a day, roughly 2% of them trucks, projected to reach 5,744 by 2038. The structure is 84 ft (25.6 m) long and 50 ft wide. If it were closed, the detour would be 0.6 mi (1 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 |
|---|---|---|
| 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 Jefferson Avenue over Mamaroneck River built?
It was built in 2013, making it 12 years old in 2025.
What condition is Jefferson Avenue over Mamaroneck 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 November 2024.
How much traffic does Jefferson Avenue over Mamaroneck River carry?
About 4,103 vehicles per day (2018 count), of which roughly 2% are trucks.
How long is Jefferson Avenue over Mamaroneck River?
The structure is 84 ft (25.6 m) long with a longest span of 81 ft (24.7 m) and a deck 50 ft wide.
Who owns Jefferson Avenue over Mamaroneck River?
It is owned by the Town or Township Highway Agency.