US 85 Ml over Lone Tree Creek
FairWeld County, Colorado · 4.3 MI North of Nunn · Structure no. A-17-B
- Built
- 1958
- 67 years old
- Condition
- Fair
- inspected July 2023
- Type
- Tee Beam
- Concrete
- Length
- 94 ft
- 3 main spans
- Daily traffic
- 4,600
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US 85 Ml over Lone Tree Creek is a concrete tee beam carrying US 85 Ml over Lone Tree Creek in Weld County, Colorado. It was built in 1958, so it is 67 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 5 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 4,600 vehicles a day, roughly 17% of them trucks, projected to reach 6,348 by 2040. The structure is 94 ft (28.7 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 85 Ml over Lone Tree Creek built?
It was built in 1958, making it 67 years old in 2025.
What condition is US 85 Ml over Lone Tree 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 US 85 Ml over Lone Tree Creek carry?
About 4,600 vehicles per day (2020 count), of which roughly 17% are trucks.
How long is US 85 Ml over Lone Tree Creek?
The structure is 94 ft (28.7 m) long with a longest span of 31 ft (9.4 m) and a deck 34 ft wide.
Who owns US 85 Ml over Lone Tree Creek?
It is owned by the State Highway Agency.