US-550 over Unnamed Waterway
GoodSandoval County, New Mexico · 39.6 MI NW of JCT I-25 · Structure no. 000000000003999
- Built
- 1938
- 87 years old, rebuilt 2001
- Condition
- Good
- inspected July 2021
- Type
- Culvert
- Concrete
- Length
- 21 ft
- 2 main spans
- Daily traffic
- 5,416
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US-550 over Unnamed Waterway is a concrete culvert carrying US-550 over Unnamed Waterway in Sandoval County, New Mexico. It was built in 1938 and reconstructed in 2001, so it is 87 years old, older 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 5,416 vehicles a day, roughly 17% of them trucks, projected to reach 7,365 by 2043. The structure is 21 ft (6.5 m) long. If it were closed, the detour would be 98.8 mi (159 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 | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-550 over Unnamed Waterway built?
It was built in 1938, making it 87 years old in 2025. It was reconstructed in 2001.
What condition is US-550 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 July 2021.
How much traffic does US-550 over Unnamed Waterway carry?
About 5,416 vehicles per day (2023 count), of which roughly 17% are trucks.
How long is US-550 over Unnamed Waterway?
The structure is 21 ft (6.5 m) long with a longest span of 10 ft (3 m).
Who owns US-550 over Unnamed Waterway?
It is owned by the State Highway Agency.