Mill Street over Byram River
FairWestchester County, New York · Port Chester-Greenwich Ct · Structure no. 000000003348610
- Built
- 1993
- 32 years old
- Condition
- Fair
- inspected May 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 140 ft
- 3 main spans
- Daily traffic
- 7,011
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Mill Street over Byram River is a prestressed concrete box beam or girders - multiple carrying Mill Street over Byram River in Westchester County, New York. It was built in 1993, so it is 32 years old, younger than the New York average of 53 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 7,011 vehicles a day, roughly 3% of them trucks, projected to reach 9,815 by 2041. The structure is 140 ft (42.7 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Mill Street over Byram River built?
It was built in 1993, making it 32 years old in 2025.
What condition is Mill Street over Byram River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.
How much traffic does Mill Street over Byram River carry?
About 7,011 vehicles per day (2021 count), of which roughly 3% are trucks.
How long is Mill Street over Byram River?
The structure is 140 ft (42.7 m) long with a longest span of 46 ft (14 m) and a deck 41 ft wide.
Who owns Mill Street over Byram River?
It is owned by the County Highway Agency.