IRR BIA RTE N9660 over Wash
PoorPosted for loadMcKinley County, New Mexico · Southeast of Twin Lakes · Structure no. 00000000000N649
- Built
- 1989
- 36 years old
- Condition
- Poor
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 51 ft
- 2 main spans
- Daily traffic
- 83
- 2023 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE N9660 over Wash is a steel continuous stringer/multi-beam or girder carrying IRR BIA RTE N9660 over Wash in McKinley County, New Mexico. It was built in 1989, so it is 36 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 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. Its operating status is: posted for other load-capacity restriction.
It carries about 83 vehicles a day, roughly 3% of them trucks, projected to reach 97 by 2040. The structure is 51 ft (15.4 m) long and 14 ft wide. If it were closed, the detour would be 19.9 mi (32 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 2 Critical | Advanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR BIA RTE N9660 over Wash built?
It was built in 1989, making it 36 years old in 2025.
What condition is IRR BIA RTE N9660 over Wash 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 March 2023.
How much traffic does IRR BIA RTE N9660 over Wash carry?
About 83 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is IRR BIA RTE N9660 over Wash?
The structure is 51 ft (15.4 m) long with a longest span of 29 ft (8.8 m) and a deck 14 ft wide.
Who owns IRR BIA RTE N9660 over Wash?
It is owned by the Bureau of Indian Affairs.