RTE 21 over Railroad Brook
GoodAllegany County, New York · 3.0 MI N JCT 417 & 21 · Structure no. 000000001016270
- Built
- 1986
- 39 years old
- Condition
- Good
- inspected August 2023
- Type
- Culvert
- Aluminum, Wrought Iron, or Cast Iron
- Length
- 32 ft
- 1 main span
- Daily traffic
- 2,212
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
RTE 21 over Railroad Brook is a aluminum, wrought iron, or cast iron culvert carrying RTE 21 over Railroad Brook in Allegany County, New York. It was built in 1986, so it is 39 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 2,212 vehicles a day, roughly 10% of them trucks, projected to reach 2,349 by 2041. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 41.6 mi (67 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 |
|---|---|---|
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was RTE 21 over Railroad Brook built?
It was built in 1986, making it 39 years old in 2025.
What condition is RTE 21 over Railroad 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 August 2023.
How much traffic does RTE 21 over Railroad Brook carry?
About 2,212 vehicles per day (2021 count), of which roughly 10% are trucks.
How long is RTE 21 over Railroad Brook?
The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m).
Who owns RTE 21 over Railroad Brook?
It is owned by the State Highway Agency.