SH 7 Ml over North ST Vrain Creek
FairBoulder County, Colorado · In Lyons · Structure no. D-15-A
- Built
- 1955
- 70 years old
- Condition
- Fair
- inspected June 2023
- Type
- Frame
- Concrete
- Length
- 66 ft
- 1 main span
- Daily traffic
- 2,600
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
SH 7 Ml over North ST Vrain Creek is a concrete frame carrying SH 7 Ml over North ST Vrain Creek in Boulder County, Colorado. It was built in 1955, so it is 70 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 2,600 vehicles a day, roughly 2% of them trucks, projected to reach 3,146 by 2040. The structure is 66 ft (20.1 m) long and 37 ft wide. If it were closed, the detour would be 37.3 mi (60 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 | 7 Good | Some minor problems. |
| 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 SH 7 Ml over North ST Vrain Creek built?
It was built in 1955, making it 70 years old in 2025.
What condition is SH 7 Ml over North ST Vrain 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 June 2023.
How much traffic does SH 7 Ml over North ST Vrain Creek carry?
About 2,600 vehicles per day (2020 count), of which roughly 2% are trucks.
How long is SH 7 Ml over North ST Vrain Creek?
The structure is 66 ft (20.1 m) long with a longest span of 60 ft (18.3 m) and a deck 37 ft wide.
Who owns SH 7 Ml over North ST Vrain Creek?
It is owned by the State Highway Agency.