US-84 over Rio Del Oso
PoorRio Arriba County, New Mexico · 1.5 MI N US-285/HERNANDEZ · Structure no. 000000000006481
- Built
- 1964
- 61 years old
- Condition
- Poor
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 276 ft
- 4 main spans
- Daily traffic
- 11,253
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US-84 over Rio Del Oso is a steel continuous stringer/multi-beam or girder carrying US-84 over Rio Del Oso in Rio Arriba County, New Mexico. It was built in 1964, so it is 61 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 11,253 vehicles a day, roughly 11% of them trucks, projected to reach 15,304 by 2043. The structure is 276 ft (84.1 m) long and 31 ft wide. If it were closed, the detour would be 65.2 mi (105 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-84 over Rio Del Oso built?
It was built in 1964, making it 61 years old in 2025.
What condition is US-84 over Rio Del Oso in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.
How much traffic does US-84 over Rio Del Oso carry?
About 11,253 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is US-84 over Rio Del Oso?
The structure is 276 ft (84.1 m) long with a longest span of 68 ft (20.7 m) and a deck 31 ft wide.
Who owns US-84 over Rio Del Oso?
It is owned by the State Highway Agency.