County Road 306 over I 70 Ml Clear Creek
FairClear Creek County, Colorado · 3.7 MI No of Georgetown I · Structure no. E-14-T
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 278 ft
- 5 main spans
- Daily traffic
- 281
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
County Road 306 over I 70 Ml Clear Creek is a steel stringer/multi-beam or girder carrying County Road 306 over I 70 Ml Clear Creek in Clear Creek County, Colorado. It was built in 1965, so it is 60 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 281 vehicles a day, roughly 8% of them trucks, projected to reach 352 by 2044. The structure is 278 ft (84.8 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was County Road 306 over I 70 Ml Clear Creek built?
It was built in 1965, making it 60 years old in 2025.
What condition is County Road 306 over I 70 Ml Clear 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 April 2023.
How much traffic does County Road 306 over I 70 Ml Clear Creek carry?
About 281 vehicles per day (2024 count), of which roughly 8% are trucks.
How long is County Road 306 over I 70 Ml Clear Creek?
The structure is 278 ft (84.8 m) long with a longest span of 62 ft (18.9 m) and a deck 32 ft wide.
Who owns County Road 306 over I 70 Ml Clear Creek?
It is owned by the State Highway Agency.