NM-187 over Rio Grande
GoodSierra County, New Mexico · 2.7 MI N of NM-546/DERRY · Structure no. 000000000009320
- Built
- 2005
- 20 years old
- Condition
- Good
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 532 ft
- 5 main spans
- Daily traffic
- 1,093
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
NM-187 over Rio Grande is a steel continuous stringer/multi-beam or girder carrying NM-187 over Rio Grande in Sierra County, New Mexico. It was built in 2005, so it is 20 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 1,093 vehicles a day, roughly 11% of them trucks, projected to reach 1,486 by 2043. The structure is 532 ft (162.2 m) long and 34 ft wide. If it were closed, the detour would be 8.7 mi (14 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 Rio Grande built?
It was built in 2005, making it 20 years old in 2025.
What condition is NM-187 over Rio Grande 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 August 2023.
How much traffic does NM-187 over Rio Grande carry?
About 1,093 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is NM-187 over Rio Grande?
The structure is 532 ft (162.2 m) long with a longest span of 105 ft (32 m) and a deck 34 ft wide.
Who owns NM-187 over Rio Grande?
It is owned by the State Highway Agency.