NM-456 over Cimarron River
GoodUnion County, New Mexico · 12.3 MI E of JCT NM-370 · Structure no. 000000000010145
- Built
- 2023
- 2 years old
- Condition
- Good
- inspected October 2023
- Type
- Truss - Thru
- Steel
- Length
- 159 ft
- 1 main span
- Daily traffic
- 33
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
NM-456 over Cimarron River is a steel truss - thru carrying NM-456 over Cimarron River in Union County, New Mexico. It was built in 2023, so it is 2 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 33 vehicles a day, roughly 27% of them trucks, projected to reach 44 by 2041. The structure is 159 ft (48.6 m) long and 28 ft wide. If it were closed, the detour would be 57.8 mi (93 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NM-456 over Cimarron River built?
It was built in 2023, making it 2 years old in 2025.
What condition is NM-456 over Cimarron River 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 October 2023.
How much traffic does NM-456 over Cimarron River carry?
About 33 vehicles per day (2021 count), of which roughly 27% are trucks.
How long is NM-456 over Cimarron River?
The structure is 159 ft (48.6 m) long with a longest span of 159 ft (48.6 m) and a deck 28 ft wide.
Who owns NM-456 over Cimarron River?
It is owned by the State Highway Agency.