Old State Route 46 over Estrella River
FairSan Luis Obispo County, California · 05-SLO-046-39.97 · Structure no. 49 0255
- Built
- 2013
- 12 years old
- Condition
- Fair
- inspected September 2024
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete Continuous
- Length
- 307 ft
- 2 main spans
- Daily traffic
- 100
- 2014 count
- Owner
- State
- State Highway Agency
About this bridge
Old State Route 46 over Estrella River is a prestressed concrete continuous box beam or girders - single or spread carrying Old State Route 46 over Estrella River in San Luis Obispo County, California. It was built in 2013, so it is 12 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 100 vehicles a day, projected to reach 408 by 2042. The structure is 307 ft (93.6 m) long and 41 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Old State Route 46 over Estrella River built?
It was built in 2013, making it 12 years old in 2025.
What condition is Old State Route 46 over Estrella River 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 September 2024.
How much traffic does Old State Route 46 over Estrella River carry?
About 100 vehicles per day (2014 count).
How long is Old State Route 46 over Estrella River?
The structure is 307 ft (93.6 m) long with a longest span of 175 ft (53.3 m) and a deck 41 ft wide.
Who owns Old State Route 46 over Estrella River?
It is owned by the State Highway Agency.