US 40 Ml over Yampa River
FairRoutt County, Colorado · 15 MI E of JCT SH 13 · Structure no. C-07-A
- Built
- 1967
- 58 years old
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 273 ft
- 4 main spans
- Daily traffic
- 4,200
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US 40 Ml over Yampa River is a steel stringer/multi-beam or girder carrying US 40 Ml over Yampa River in Routt County, Colorado. It was built in 1967, so it is 58 years old, older than the Colorado average of 42.2 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 4,200 vehicles a day, roughly 8% of them trucks, projected to reach 4,704 by 2040. The structure is 273 ft (83.1 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 US 40 Ml over Yampa River built?
It was built in 1967, making it 58 years old in 2025.
What condition is US 40 Ml over Yampa River 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 October 2024.
How much traffic does US 40 Ml over Yampa River carry?
About 4,200 vehicles per day (2020 count), of which roughly 8% are trucks.
How long is US 40 Ml over Yampa River?
The structure is 273 ft (83.1 m) long with a longest span of 66 ft (20.1 m) and a deck 34 ft wide.
Who owns US 40 Ml over Yampa River?
It is owned by the State Highway Agency.