Gazelle-Callahan R over South Fork Willow Creek
FairSiskiyou County, California · 4.6 MI W Old Hy 99 · Structure no. 02C0044
- Built
- 1973
- 52 years old
- Condition
- Fair
- inspected June 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 26 ft
- 2 main spans
- Daily traffic
- 306
- 2011 count
- Owner
- County
- County Highway Agency
About this bridge
Gazelle-Callahan R over South Fork Willow Creek is a concrete continuous culvert carrying Gazelle-Callahan R over South Fork Willow Creek in Siskiyou County, California. It was built in 1973, so it is 52 years old, younger 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 306 vehicles a day, roughly 10% of them trucks, projected to reach 1,105 by 2045. The structure is 26 ft (7.9 m) long and 29 ft wide. If it were closed, the detour would be 60.3 mi (97 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Gazelle-Callahan R over South Fork Willow Creek built?
It was built in 1973, making it 52 years old in 2025.
What condition is Gazelle-Callahan R over South Fork Willow 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 June 2023.
How much traffic does Gazelle-Callahan R over South Fork Willow Creek carry?
About 306 vehicles per day (2011 count), of which roughly 10% are trucks.
How long is Gazelle-Callahan R over South Fork Willow Creek?
The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.6 m) and a deck 29 ft wide.
Who owns Gazelle-Callahan R over South Fork Willow Creek?
It is owned by the County Highway Agency.