State Route 273 over Sulphur Creek
FairShasta County, California · 02-SHA-273-17.97-RDG · Structure no. 06 0022
- Built
- 1936
- 89 years old, rebuilt 1954
- Condition
- Fair
- inspected April 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 27 ft
- 2 main spans
- Daily traffic
- 25,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 273 over Sulphur Creek is a concrete continuous culvert carrying State Route 273 over Sulphur Creek in Shasta County, California. It was built in 1936 and reconstructed in 1954, so it is 89 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 25,000 vehicles a day, roughly 4% of them trucks, projected to reach 37,479 by 2045. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 273 over Sulphur Creek built?
It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1954.
What condition is State Route 273 over Sulphur Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2023.
How much traffic does State Route 273 over Sulphur Creek carry?
About 25,000 vehicles per day (2009 count), of which roughly 4% are trucks.
How long is State Route 273 over Sulphur Creek?
The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m).
Who owns State Route 273 over Sulphur Creek?
It is owned by the State Highway Agency.