Interstate 5 over Hillgate Road
GoodColusa County, California · 03-COL-005-6.84 · Structure no. 15 0047
- Built
- 1957
- 68 years old
- Condition
- Good
- inspected January 2024
- Type
- Tee Beam
- Concrete
- Length
- 59 ft
- 1 main span
- Daily traffic
- 35,000
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 5 over Hillgate Road is a concrete tee beam carrying Interstate 5 over Hillgate Road in Colusa County, California. It was built in 1957, so it is 68 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 35,000 vehicles a day, roughly 29% of them trucks, projected to reach 49,669 by 2044. The structure is 59 ft (18.1 m) long and 92 ft wide. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 5 over Hillgate Road built?
It was built in 1957, making it 68 years old in 2025.
What condition is Interstate 5 over Hillgate Road 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 January 2024.
How much traffic does Interstate 5 over Hillgate Road carry?
About 35,000 vehicles per day (2017 count), of which roughly 29% are trucks.
How long is Interstate 5 over Hillgate Road?
The structure is 59 ft (18.1 m) long with a longest span of 57 ft (17.3 m) and a deck 92 ft wide.
Who owns Interstate 5 over Hillgate Road?
It is owned by the State Highway Agency.