State Route 99 over Antelope Creek
GoodTehama County, California · 02-TEH-099-R18.02 · Structure no. 08 0161
- Built
- 2003
- 22 years old
- Condition
- Good
- inspected May 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 131 ft
- 1 main span
- Daily traffic
- 9,300
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 over Antelope Creek is a prestressed concrete box beam or girders - multiple carrying State Route 99 over Antelope Creek in Tehama County, California. It was built in 2003, so it is 22 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 9,300 vehicles a day, roughly 14% of them trucks, projected to reach 8,981 by 2046. The structure is 131 ft (40 m) long and 54 ft wide. If it were closed, the detour would be 21.7 mi (35 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 99 over Antelope Creek built?
It was built in 2003, making it 22 years old in 2025.
What condition is State Route 99 over Antelope Creek 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 May 2024.
How much traffic does State Route 99 over Antelope Creek carry?
About 9,300 vehicles per day (2015 count), of which roughly 14% are trucks.
How long is State Route 99 over Antelope Creek?
The structure is 131 ft (40 m) long with a longest span of 129 ft (39.2 m) and a deck 54 ft wide.
Who owns State Route 99 over Antelope Creek?
It is owned by the State Highway Agency.