Thompson RD over Deleissigues Creek
GoodSan Luis Obispo County, California · 0.75 MI NW Tefft ST · Structure no. 49C0309
- Built
- 1916
- 109 years old, rebuilt 1930
- Condition
- Good
- inspected September 2024
- Type
- Tee Beam
- Concrete
- Length
- 22 ft
- 1 main span
- Daily traffic
- 5,834
- 2014 count
- Owner
- County
- County Highway Agency
About this bridge
Thompson RD over Deleissigues Creek is a concrete tee beam carrying Thompson RD over Deleissigues Creek in San Luis Obispo County, California. It was built in 1916 and reconstructed in 1930, so it is 109 years old, older 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 5,834 vehicles a day, roughly 2% of them trucks, projected to reach 6,000 by 2044. The structure is 22 ft (6.7 m) long and 59 ft wide. If it were closed, the detour would be 3.7 mi (6 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 Thompson RD over Deleissigues Creek built?
It was built in 1916, making it 109 years old in 2025. It was reconstructed in 1930.
What condition is Thompson RD over Deleissigues 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 September 2024.
How much traffic does Thompson RD over Deleissigues Creek carry?
About 5,834 vehicles per day (2014 count), of which roughly 2% are trucks.
How long is Thompson RD over Deleissigues Creek?
The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 59 ft wide.
Who owns Thompson RD over Deleissigues Creek?
It is owned by the County Highway Agency.