US-491 NB and SB over I-40 EB and WB @ 20.8
GoodMcKinley County, New Mexico · JCT I-40/US-491 MP 20.8 · Structure no. 000000000009330
- Built
- 2007
- 18 years old
- Condition
- Good
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 252 ft
- 4 main spans
- Daily traffic
- 27,624
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US-491 NB and SB over I-40 EB and WB @ 20.8 is a prestressed concrete continuous stringer/multi-beam or girder carrying US-491 NB and SB over I-40 EB and WB @ 20.8 in McKinley County, New Mexico. It was built in 2007, so it is 18 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 27,624 vehicles a day, roughly 13% of them trucks, projected to reach 37,568 by 2043. The structure is 252 ft (76.8 m) long and 99 ft wide. If it were closed, the detour would be 1.2 mi (2 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-491 NB and SB over I-40 EB and WB @ 20.8 built?
It was built in 2007, making it 18 years old in 2025.
What condition is US-491 NB and SB over I-40 EB and WB @ 20.8 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 July 2024.
How much traffic does US-491 NB and SB over I-40 EB and WB @ 20.8 carry?
About 27,624 vehicles per day (2023 count), of which roughly 13% are trucks.
How long is US-491 NB and SB over I-40 EB and WB @ 20.8?
The structure is 252 ft (76.8 m) long with a longest span of 95 ft (29 m) and a deck 99 ft wide.
Who owns US-491 NB and SB over I-40 EB and WB @ 20.8?
It is owned by the State Highway Agency.