US 287 Ml over ST Vrain Creek
GoodBoulder County, Colorado · In Longmont · Structure no. D-16-EC
- Built
- 2016
- 9 years old
- Condition
- Good
- inspected August 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 248 ft
- 3 main spans
- Daily traffic
- 24,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US 287 Ml over ST Vrain Creek is a prestressed concrete box beam or girders - multiple carrying US 287 Ml over ST Vrain Creek in Boulder County, Colorado. It was built in 2016, so it is 9 years old, younger 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 24,000 vehicles a day, roughly 4% of them trucks, projected to reach 26,160 by 2040. The structure is 248 ft (75.6 m) long and 99 ft wide. If it were closed, the detour would be 3.1 mi (5 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. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 287 Ml over ST Vrain Creek built?
It was built in 2016, making it 9 years old in 2025.
What condition is US 287 Ml over ST Vrain Creek 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 August 2023.
How much traffic does US 287 Ml over ST Vrain Creek carry?
About 24,000 vehicles per day (2020 count), of which roughly 4% are trucks.
How long is US 287 Ml over ST Vrain Creek?
The structure is 248 ft (75.6 m) long with a longest span of 92 ft (28 m) and a deck 99 ft wide.
Who owns US 287 Ml over ST Vrain Creek?
It is owned by the State Highway Agency.