NM-456 over Cimarron River
FairUnion County, New Mexico · 22.9 M NE JCT US-64/87 · Structure no. 000000000001095
- Built
- 1962
- 63 years old
- Condition
- Fair
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 91 ft
- 3 main spans
- Daily traffic
- 73
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
NM-456 over Cimarron River is a wood or timber stringer/multi-beam or girder carrying NM-456 over Cimarron River in Union County, New Mexico. It was built in 1962, so it is 63 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 73 vehicles a day, roughly 10% of them trucks, projected to reach 99 by 2043. The structure is 91 ft (27.7 m) long and 33 ft wide. If it were closed, the detour would be 62.1 mi (100 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Cimarron River built?
It was built in 1962, making it 63 years old in 2025.
What condition is NM-456 over Cimarron River 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 2024.
How much traffic does NM-456 over Cimarron River carry?
About 73 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is NM-456 over Cimarron River?
The structure is 91 ft (27.7 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.
Who owns NM-456 over Cimarron River?
It is owned by the State Highway Agency.