State Route 263 over Klamath River
GoodSiskiyou County, California · 02-SIS-263-57.10 · Structure no. 02 0201
- Built
- 2021
- 4 years old
- Condition
- Good
- inspected September 2023
- Type
- Arch - Deck
- Concrete Continuous
- Length
- 270 ft
- 1 main span
- Daily traffic
- 990
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 263 over Klamath River is a concrete continuous arch - deck carrying State Route 263 over Klamath River in Siskiyou County, California. It was built in 2021, so it is 4 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 990 vehicles a day, roughly 11% of them trucks, projected to reach 1,200 by 2042. The structure is 270 ft (82.4 m) long and 44 ft wide. If it were closed, the detour would be 8.7 mi (14 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 263 over Klamath River built?
It was built in 2021, making it 4 years old in 2025.
What condition is State Route 263 over Klamath River 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 September 2023.
How much traffic does State Route 263 over Klamath River carry?
About 990 vehicles per day (2015 count), of which roughly 11% are trucks.
How long is State Route 263 over Klamath River?
The structure is 270 ft (82.4 m) long with a longest span of 165 ft (50.3 m) and a deck 44 ft wide.
Who owns State Route 263 over Klamath River?
It is owned by the State Highway Agency.