Loop Road over Chaco Wash
FairSan Juan County, New Mexico · Just South of Pueblo Boni · Structure no. 7400001P0000000
- Built
- 1991
- 34 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 190 ft
- 3 main spans
- Daily traffic
- 200
- 2019 count
- Owner
- Federal
- National Park Service
About this bridge
Loop Road over Chaco Wash is a prestressed concrete continuous stringer/multi-beam or girder carrying Loop Road over Chaco Wash in San Juan County, New Mexico. It was built in 1991, so it is 34 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 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 200 vehicles a day, roughly 2% of them trucks, projected to reach 300 by 2039. The structure is 190 ft (57.9 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Loop Road over Chaco Wash built?
It was built in 1991, making it 34 years old in 2025.
What condition is Loop Road over Chaco Wash 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 May 2024.
How much traffic does Loop Road over Chaco Wash carry?
About 200 vehicles per day (2019 count), of which roughly 2% are trucks.
How long is Loop Road over Chaco Wash?
The structure is 190 ft (57.9 m) long with a longest span of 64 ft (19.4 m) and a deck 23 ft wide.
Who owns Loop Road over Chaco Wash?
It is owned by the National Park Service.