US 6 Ml over Mayhem Gulch
GoodJefferson County, Colorado · 1.8 MI E of JCT SH 119 · Structure no. F-15-C
- Built
- 1950
- 75 years old, rebuilt 2009
- Condition
- Good
- inspected November 2023
- Type
- Culvert
- Concrete
- Length
- 21 ft
- 2 main spans
- Daily traffic
- 7,500
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US 6 Ml over Mayhem Gulch is a concrete culvert carrying US 6 Ml over Mayhem Gulch in Jefferson County, Colorado. It was built in 1950 and reconstructed in 2009, so it is 75 years old, older than the Colorado average of 42.2 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 7,500 vehicles a day, roughly 8% of them trucks, projected to reach 8,175 by 2040. The structure is 21 ft (6.4 m) long and 117 ft wide. If it were closed, the detour would be 11.8 mi (19 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 6 Ml over Mayhem Gulch built?
It was built in 1950, making it 75 years old in 2025. It was reconstructed in 2009.
What condition is US 6 Ml over Mayhem Gulch 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 November 2023.
How much traffic does US 6 Ml over Mayhem Gulch carry?
About 7,500 vehicles per day (2020 count), of which roughly 8% are trucks.
How long is US 6 Ml over Mayhem Gulch?
The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 117 ft wide.
Who owns US 6 Ml over Mayhem Gulch?
It is owned by the State Highway Agency.