NM-456 over Unnamed Waterway
FairUnion County, New Mexico · 11.5 MI E of JCT NM-370 · Structure no. 000000000001102
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 32 ft
- 1 main span
- Daily traffic
- 35
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
NM-456 over Unnamed Waterway is a wood or timber stringer/multi-beam or girder carrying NM-456 over Unnamed Waterway in Union County, New Mexico. It was built in 1966, so it is 59 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 35 vehicles a day, roughly 11% of them trucks, projected to reach 47 by 2043. The structure is 32 ft (9.8 m) long and 33 ft wide. If it were closed, the detour would be 57.8 mi (93 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NM-456 over Unnamed Waterway built?
It was built in 1966, making it 59 years old in 2025.
What condition is NM-456 over Unnamed Waterway in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2023.
How much traffic does NM-456 over Unnamed Waterway carry?
About 35 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is NM-456 over Unnamed Waterway?
The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 33 ft wide.
Who owns NM-456 over Unnamed Waterway?
It is owned by the State Highway Agency.