State Route 299 over Hillside
GoodTrinity County, California · 02-TRI-299-12.70 · Structure no. 05 0092
- Built
- 2017
- 8 years old
- Condition
- Good
- inspected January 2023
- Type
- Slab
- Concrete Continuous
- Length
- 124 ft
- 4 main spans
- Daily traffic
- 2,650
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 299 over Hillside is a concrete continuous slab carrying State Route 299 over Hillside in Trinity County, California. It was built in 2017, so it is 8 years old, younger 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 2,650 vehicles a day, roughly 3% of them trucks, projected to reach 4,094 by 2041. The structure is 124 ft (37.9 m) long and 17 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 299 over Hillside built?
It was built in 2017, making it 8 years old in 2025.
What condition is State Route 299 over Hillside 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 2023.
How much traffic does State Route 299 over Hillside carry?
About 2,650 vehicles per day (2009 count), of which roughly 3% are trucks.
How long is State Route 299 over Hillside?
The structure is 124 ft (37.9 m) long with a longest span of 35 ft (10.7 m) and a deck 17 ft wide.
Who owns State Route 299 over Hillside?
It is owned by the State Highway Agency.