US-550 over Unnamed Waterway
GoodSandoval County, New Mexico · 24.4 MI NW of JCT I-25 · Structure no. 000000000007550
- Built
- 1979
- 46 years old, rebuilt 2001
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 138 ft
- 3 main spans
- Daily traffic
- 5,416
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US-550 over Unnamed Waterway is a prestressed concrete continuous stringer/multi-beam or girder carrying US-550 over Unnamed Waterway in Sandoval County, New Mexico. It was built in 1979 and reconstructed in 2001, so it is 46 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 5,416 vehicles a day, roughly 17% of them trucks, projected to reach 7,365 by 2043. The structure is 138 ft (42.2 m) long and 75 ft wide. 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 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 1979, making it 46 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 March 2023.
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 138 ft (42.2 m) long with a longest span of 45 ft (13.8 m) and a deck 75 ft wide.
Who owns US-550 over Unnamed Waterway?
It is owned by the State Highway Agency.