State Route 99 over S Br of N Fk Mill Creek
FairTehama County, California · 02-TEH-099-13.96 · Structure no. 08 0008
- Built
- 1921
- 104 years old, rebuilt 1952
- Condition
- Fair
- inspected May 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 40 ft
- 2 main spans
- Daily traffic
- 9,300
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 over S Br of N Fk Mill Creek is a concrete continuous tee beam carrying State Route 99 over S Br of N Fk Mill Creek in Tehama County, California. It was built in 1921 and reconstructed in 1952, so it is 104 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 9,300 vehicles a day, roughly 14% of them trucks, projected to reach 8,981 by 2046. The structure is 40 ft (12.1 m) long and 42 ft wide. If it were closed, the detour would be 26.1 mi (42 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 S Br of N Fk Mill Creek built?
It was built in 1921, making it 104 years old in 2025. It was reconstructed in 1952.
What condition is State Route 99 over S Br of N Fk Mill 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 May 2024.
How much traffic does State Route 99 over S Br of N Fk Mill Creek carry?
About 9,300 vehicles per day (2015 count), of which roughly 14% are trucks.
How long is State Route 99 over S Br of N Fk Mill Creek?
The structure is 40 ft (12.1 m) long with a longest span of 19 ft (5.9 m) and a deck 42 ft wide.
Who owns State Route 99 over S Br of N Fk Mill Creek?
It is owned by the State Highway Agency.