State Route 99 over Salt Creek Overflow
FairTehama County, California · 02-TEH-099-24.66 · Structure no. 08 0017
- Built
- 1947
- 78 years old
- Condition
- Fair
- inspected May 2024
- Type
- Slab
- Concrete Continuous
- Length
- 90 ft
- 4 main spans
- Daily traffic
- 11,000
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 over Salt Creek Overflow is a concrete continuous slab carrying State Route 99 over Salt Creek Overflow in Tehama County, California. It was built in 1947, so it is 78 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 5 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 11,000 vehicles a day, roughly 12% of them trucks, projected to reach 15,361 by 2046. The structure is 90 ft (27.4 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 99 over Salt Creek Overflow built?
It was built in 1947, making it 78 years old in 2025.
What condition is State Route 99 over Salt Creek Overflow 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 May 2024.
How much traffic does State Route 99 over Salt Creek Overflow carry?
About 11,000 vehicles per day (2015 count), of which roughly 12% are trucks.
How long is State Route 99 over Salt Creek Overflow?
The structure is 90 ft (27.4 m) long with a longest span of 22 ft (6.7 m) and a deck 31 ft wide.
Who owns State Route 99 over Salt Creek Overflow?
It is owned by the State Highway Agency.