US-491 over Unnamed Waterway
GoodMcKinley County, New Mexico · 7.1 MI N of I-40 · Structure no. 000000000008702
- Built
- 1986
- 39 years old
- Condition
- Good
- inspected June 2021
- Type
- Culvert
- Concrete
- Length
- 44 ft
- 4 main spans
- Daily traffic
- 21,189
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US-491 over Unnamed Waterway is a concrete culvert carrying US-491 over Unnamed Waterway in McKinley County, New Mexico. It was built in 1986, so it is 39 years old, younger than the New Mexico average of 51.5 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 21,189 vehicles a day, roughly 12% of them trucks, projected to reach 28,817 by 2043. The structure is 44 ft (13.3 m) long. 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-491 over Unnamed Waterway built?
It was built in 1986, making it 39 years old in 2025.
What condition is US-491 over Unnamed Waterway 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 June 2021.
How much traffic does US-491 over Unnamed Waterway carry?
About 21,189 vehicles per day (2023 count), of which roughly 12% are trucks.
How long is US-491 over Unnamed Waterway?
The structure is 44 ft (13.3 m) long with a longest span of 10 ft (3 m).
Who owns US-491 over Unnamed Waterway?
It is owned by the State Highway Agency.