Tennant RD over Antelope Creek
FairSiskiyou County, California · 11.6 MI SE SR97 · Structure no. 02C0173
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected June 2023
- Type
- Slab
- Concrete
- Length
- 33 ft
- 1 main span
- Daily traffic
- 79
- 2011 count
- Owner
- County
- County Highway Agency
About this bridge
Tennant RD over Antelope Creek is a concrete slab carrying Tennant RD over Antelope Creek in Siskiyou County, California. It was built in 1971, so it is 54 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 79 vehicles a day, roughly 25% of them trucks, projected to reach 146 by 2041. The structure is 33 ft (10.2 m) long and 25 ft wide. If it were closed, the detour would be 14.9 mi (24 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Tennant RD over Antelope Creek built?
It was built in 1971, making it 54 years old in 2025.
What condition is Tennant RD over Antelope 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 Tennant RD over Antelope Creek carry?
About 79 vehicles per day (2011 count), of which roughly 25% are trucks.
How long is Tennant RD over Antelope Creek?
The structure is 33 ft (10.2 m) long with a longest span of 32 ft (9.8 m) and a deck 25 ft wide.
Who owns Tennant RD over Antelope Creek?
It is owned by the County Highway Agency.