I-25 SB over NM-181
FairSierra County, New Mexico · Junction of I-25/NM-181 · Structure no. 000000000006791
- Built
- 1967
- 58 years old
- Condition
- Fair
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 247 ft
- 3 main spans
- Daily traffic
- 6,271
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I-25 SB over NM-181 is a prestressed concrete stringer/multi-beam or girder carrying I-25 SB over NM-181 in Sierra County, New Mexico. It was built in 1967, so it is 58 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 6 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 6,271 vehicles a day, roughly 28% of them trucks, projected to reach 8,528 by 2042. The structure is 247 ft (75.3 m) long and 46 ft wide.
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-25 SB over NM-181 built?
It was built in 1967, making it 58 years old in 2025.
What condition is I-25 SB over NM-181 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 March 2024.
How much traffic does I-25 SB over NM-181 carry?
About 6,271 vehicles per day (2022 count), of which roughly 28% are trucks.
How long is I-25 SB over NM-181?
The structure is 247 ft (75.3 m) long with a longest span of 84 ft (25.6 m) and a deck 46 ft wide.
Who owns I-25 SB over NM-181?
It is owned by the State Highway Agency.