State Route 299 over Willow Creek
GoodHumboldt County, California · 01-HUM-299-35.55 · Structure no. 04 0163
- Built
- 1956
- 69 years old, rebuilt 2005
- Condition
- Good
- inspected January 2025
- Type
- Tee Beam
- Concrete Continuous
- Length
- 210 ft
- 3 main spans
- Daily traffic
- 3,200
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 299 over Willow Creek is a concrete continuous tee beam carrying State Route 299 over Willow Creek in Humboldt County, California. It was built in 1956 and reconstructed in 2005, so it is 69 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 3,200 vehicles a day, roughly 17% of them trucks, projected to reach 4,282 by 2043. The structure is 210 ft (64 m) long and 42 ft wide. If it were closed, the detour would be 123.7 mi (199 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. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 299 over Willow Creek built?
It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2005.
What condition is State Route 299 over Willow Creek 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 2025.
How much traffic does State Route 299 over Willow Creek carry?
About 3,200 vehicles per day (2009 count), of which roughly 17% are trucks.
How long is State Route 299 over Willow Creek?
The structure is 210 ft (64 m) long with a longest span of 90 ft (27.4 m) and a deck 42 ft wide.
Who owns State Route 299 over Willow Creek?
It is owned by the State Highway Agency.