SH 42 Ml over Coal Creek
FairBoulder County, Colorado · 3.3 MI SE of JCT SH 7 · Structure no. E-16-BC
- Built
- 1967
- 58 years old
- Condition
- Fair
- inspected July 2023
- Type
- Culvert
- Concrete
- Length
- 40 ft
- 3 main spans
- Daily traffic
- 11,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
SH 42 Ml over Coal Creek is a concrete culvert carrying SH 42 Ml over Coal Creek in Boulder 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 6 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 11,000 vehicles a day, roughly 2% of them trucks, projected to reach 13,860 by 2040. The structure is 40 ft (12.2 m) long and 97 ft wide. If it were closed, the detour would be 0.6 mi (1 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 42 Ml over Coal Creek built?
It was built in 1967, making it 58 years old in 2025.
What condition is SH 42 Ml over Coal Creek 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 July 2023.
How much traffic does SH 42 Ml over Coal Creek carry?
About 11,000 vehicles per day (2020 count), of which roughly 2% are trucks.
How long is SH 42 Ml over Coal Creek?
The structure is 40 ft (12.2 m) long with a longest span of 15 ft (4.6 m) and a deck 97 ft wide.
Who owns SH 42 Ml over Coal Creek?
It is owned by the State Highway Agency.