Slo-San Simeon RD over Hearst Ranch Creek
FairSan Luis Obispo County, California · Just W/O SR 1 · Structure no. 49C0254
- Built
- 1916
- 109 years old
- Condition
- Fair
- inspected April 2024
- Type
- Tee Beam
- Concrete
- Length
- 51 ft
- 1 main span
- Daily traffic
- 100
- 2010 count
- Owner
- County
- County Highway Agency
About this bridge
Slo-San Simeon RD over Hearst Ranch Creek is a concrete tee beam carrying Slo-San Simeon RD over Hearst Ranch Creek in San Luis Obispo County, California. It was built in 1916, 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 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 100 vehicles a day, roughly 5% of them trucks, projected to reach 242 by 2046. The structure is 51 ft (15.5 m) long and 20 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Slo-San Simeon RD over Hearst Ranch Creek built?
It was built in 1916, making it 109 years old in 2025.
What condition is Slo-San Simeon RD over Hearst Ranch 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 April 2024.
How much traffic does Slo-San Simeon RD over Hearst Ranch Creek carry?
About 100 vehicles per day (2010 count), of which roughly 5% are trucks.
How long is Slo-San Simeon RD over Hearst Ranch Creek?
The structure is 51 ft (15.5 m) long with a longest span of 48 ft (14.6 m) and a deck 20 ft wide.
Who owns Slo-San Simeon RD over Hearst Ranch Creek?
It is owned by the County Highway Agency.