Interstate 505 over Dry Arroyo
GoodSolano County, California · 04-SOL-505-R7.50 · Structure no. 23 0031
- Built
- 1960
- 65 years old, rebuilt 1974
- Condition
- Good
- inspected April 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 22 ft
- 2 main spans
- Daily traffic
- 22,800
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 505 over Dry Arroyo is a concrete continuous culvert carrying Interstate 505 over Dry Arroyo in Solano County, California. It was built in 1960 and reconstructed in 1974, so it is 65 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 22,800 vehicles a day, roughly 10% of them trucks, projected to reach 37,924 by 2046. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 21.1 mi (34 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 505 over Dry Arroyo built?
It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1974.
What condition is Interstate 505 over Dry Arroyo in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.
How much traffic does Interstate 505 over Dry Arroyo carry?
About 22,800 vehicles per day (2009 count), of which roughly 10% are trucks.
How long is Interstate 505 over Dry Arroyo?
The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).
Who owns Interstate 505 over Dry Arroyo?
It is owned by the State Highway Agency.