NM-187 over Montoya Arroyo
GoodSierra County, New Mexico · 4.9 MI N of Dona Ana C/L · Structure no. 000000000009828
- Built
- 2021
- 4 years old
- Condition
- Good
- inspected February 2023
- Type
- Slab
- Concrete Continuous
- Length
- 177 ft
- 4 main spans
- Daily traffic
- 1,022
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
NM-187 over Montoya Arroyo is a concrete continuous slab carrying NM-187 over Montoya Arroyo in Sierra County, New Mexico. It was built in 2021, so it is 4 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 1,022 vehicles a day, roughly 9% of them trucks, projected to reach 1,389 by 2041. The structure is 177 ft (53.8 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NM-187 over Montoya Arroyo built?
It was built in 2021, making it 4 years old in 2025.
What condition is NM-187 over Montoya Arroyo 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 February 2023.
How much traffic does NM-187 over Montoya Arroyo carry?
About 1,022 vehicles per day (2021 count), of which roughly 9% are trucks.
How long is NM-187 over Montoya Arroyo?
The structure is 177 ft (53.8 m) long with a longest span of 50 ft (15.2 m) and a deck 35 ft wide.
Who owns NM-187 over Montoya Arroyo?
It is owned by the State Highway Agency.