NM-187 over Unnamed Waterway
GoodSierra County, New Mexico · 9.7 MI N of NM-152 · Structure no. 000000000002082
- Built
- 1933
- 92 years old
- Condition
- Good
- inspected November 2023
- Type
- Culvert
- Concrete
- Length
- 22 ft
- 3 main spans
- Daily traffic
- 521
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
NM-187 over Unnamed Waterway is a concrete culvert carrying NM-187 over Unnamed Waterway in Sierra County, New Mexico. It was built in 1933, so it is 92 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 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 521 vehicles a day, roughly 12% of them trucks, projected to reach 708 by 2043. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.9 mi (3 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NM-187 over Unnamed Waterway built?
It was built in 1933, making it 92 years old in 2025.
What condition is NM-187 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 November 2023.
How much traffic does NM-187 over Unnamed Waterway carry?
About 521 vehicles per day (2023 count), of which roughly 12% are trucks.
How long is NM-187 over Unnamed Waterway?
The structure is 22 ft (6.7 m) long with a longest span of 7 ft (2.1 m).
Who owns NM-187 over Unnamed Waterway?
It is owned by the State Highway Agency.