Mill Street over Roaring Fork River
FairPitkin County, Colorado · 4 Blk E of HWY 82 · Structure no. ASP-MILL ST A
- Built
- 1985
- 40 years old
- Condition
- Fair
- inspected May 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 78 ft
- 1 main span
- Daily traffic
- 2,985
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Mill Street over Roaring Fork River is a prestressed concrete box beam or girders - multiple carrying Mill Street over Roaring Fork River in Pitkin County, Colorado. It was built in 1985, so it is 40 years old, younger 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 2,985 vehicles a day, roughly 5% of them trucks, projected to reach 3,283 by 2042. The structure is 78 ft (23.8 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 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 Mill Street over Roaring Fork River built?
It was built in 1985, making it 40 years old in 2025.
What condition is Mill Street over Roaring Fork River 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 May 2024.
How much traffic does Mill Street over Roaring Fork River carry?
About 2,985 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is Mill Street over Roaring Fork River?
The structure is 78 ft (23.8 m) long with a longest span of 74 ft (22.5 m) and a deck 50 ft wide.
Who owns Mill Street over Roaring Fork River?
It is owned by the City or Municipal Highway Agency.