Interstate 505 over Cache Creek
FairYolo County, California · 03-YOL-505-11.67 · Structure no. 22 0101R
- Built
- 1959
- 66 years old, rebuilt 1977
- Condition
- Fair
- inspected May 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 602 ft
- 7 main spans
- Daily traffic
- 11,000
- 2010 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 505 over Cache Creek is a concrete continuous box beam or girders - multiple carrying Interstate 505 over Cache Creek in Yolo County, California. It was built in 1959 and reconstructed in 1977, so it is 66 years old, older than the California average of 54.8 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 11,000 vehicles a day, roughly 27% of them trucks, projected to reach 14,358 by 2041. The structure is 602 ft (183.6 m) long and 42 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 505 over Cache Creek built?
It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1977.
What condition is Interstate 505 over Cache 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 May 2023.
How much traffic does Interstate 505 over Cache Creek carry?
About 11,000 vehicles per day (2010 count), of which roughly 27% are trucks.
How long is Interstate 505 over Cache Creek?
The structure is 602 ft (183.6 m) long with a longest span of 90 ft (27.4 m) and a deck 42 ft wide.
Who owns Interstate 505 over Cache Creek?
It is owned by the State Highway Agency.