NM-406 over Cienequilla Creek
GoodUnion County, New Mexico · 7.6 MI N of JCT US-56/64 · Structure no. 000000000007783
- Built
- 1978
- 47 years old
- Condition
- Good
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 133 ft
- 2 main spans
- Daily traffic
- 169
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
NM-406 over Cienequilla Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying NM-406 over Cienequilla Creek in Union County, New Mexico. It was built in 1978, so it is 47 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 169 vehicles a day, roughly 11% of them trucks, projected to reach 229 by 2043. The structure is 133 ft (40.5 m) long and 37 ft wide. If it were closed, the detour would be 37.9 mi (61 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NM-406 over Cienequilla Creek built?
It was built in 1978, making it 47 years old in 2025.
What condition is NM-406 over Cienequilla Creek 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 2024.
How much traffic does NM-406 over Cienequilla Creek carry?
About 169 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is NM-406 over Cienequilla Creek?
The structure is 133 ft (40.5 m) long with a longest span of 65 ft (19.8 m) and a deck 37 ft wide.
Who owns NM-406 over Cienequilla Creek?
It is owned by the State Highway Agency.