Middle Patent RD over Mianus River
FairWestchester County, New York · 5.1 MI E of Mount Kisco · Structure no. 000000002224920
- Built
- 1941
- 84 years old
- Condition
- Fair
- inspected March 2023
- Type
- Slab
- Concrete
- Length
- 25 ft
- 1 main span
- Daily traffic
- 1,314
- 2019 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Middle Patent RD over Mianus River is a concrete slab carrying Middle Patent RD over Mianus River in Westchester County, New York. It was built in 1941, so it is 84 years old, older 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 5 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 1,314 vehicles a day, roughly 4% of them trucks, projected to reach 1,840 by 2039. The structure is 25 ft (7.6 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Middle Patent RD over Mianus River built?
It was built in 1941, making it 84 years old in 2025.
What condition is Middle Patent RD over Mianus 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 March 2023.
How much traffic does Middle Patent RD over Mianus River carry?
About 1,314 vehicles per day (2019 count), of which roughly 4% are trucks.
How long is Middle Patent RD over Mianus River?
The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 28 ft wide.
Who owns Middle Patent RD over Mianus River?
It is owned by the Town or Township Highway Agency.