US 40 Ml over Adobe Gulch
FairCheyenne County, Colorado · 4.9 MI SE of Lincoln-Chey · Structure no. I-24-S
- Built
- 1937
- 88 years old, rebuilt 1980
- Condition
- Fair
- inspected February 2025
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 140 ft
- 3 main spans
- Daily traffic
- 3,300
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US 40 Ml over Adobe Gulch is a steel stringer/multi-beam or girder carrying US 40 Ml over Adobe Gulch in Cheyenne County, Colorado. It was built in 1937 and reconstructed in 1980, so it is 88 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 3,300 vehicles a day, roughly 54% of them trucks, projected to reach 4,290 by 2040. The structure is 140 ft (42.7 m) long and 43 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 40 Ml over Adobe Gulch built?
It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1980.
What condition is US 40 Ml over Adobe Gulch 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 February 2025.
How much traffic does US 40 Ml over Adobe Gulch carry?
About 3,300 vehicles per day (2020 count), of which roughly 54% are trucks.
How long is US 40 Ml over Adobe Gulch?
The structure is 140 ft (42.7 m) long with a longest span of 46 ft (14 m) and a deck 43 ft wide.
Who owns US 40 Ml over Adobe Gulch?
It is owned by the State Highway Agency.