County Road 66 over I 25 Ml
FairLarimer County, Colorado · 1.5 MI N of SH 1 · Structure no. B-17-CT
- Built
- 1967
- 58 years old
- Condition
- Fair
- inspected May 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 247 ft
- 5 main spans
- Daily traffic
- 704
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
County Road 66 over I 25 Ml is a concrete continuous tee beam carrying County Road 66 over I 25 Ml in Larimer 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 704 vehicles a day, roughly 16% of them trucks, projected to reach 880 by 2042. The structure is 247 ft (75.3 m) long and 28 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 |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was County Road 66 over I 25 Ml built?
It was built in 1967, making it 58 years old in 2025.
What condition is County Road 66 over I 25 Ml 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 2023.
How much traffic does County Road 66 over I 25 Ml carry?
About 704 vehicles per day (2023 count), of which roughly 16% are trucks.
How long is County Road 66 over I 25 Ml?
The structure is 247 ft (75.3 m) long with a longest span of 56 ft (17 m) and a deck 28 ft wide.
Who owns County Road 66 over I 25 Ml?
It is owned by the State Highway Agency.