Sierra College Blv over Miners Ravine
GoodPlacer County, California · 2.7 MI N of CO Line · Structure no. 19C0054
- Built
- 1964
- 61 years old, rebuilt 2008
- Condition
- Good
- inspected June 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 32 ft
- 3 main spans
- Daily traffic
- 10,106
- 2010 count
- Owner
- County
- County Highway Agency
About this bridge
Sierra College Blv over Miners Ravine is a concrete continuous culvert carrying Sierra College Blv over Miners Ravine in Placer County, California. It was built in 1964 and reconstructed in 2008, so it is 61 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 10,106 vehicles a day, roughly 8% of them trucks, projected to reach 6,302 by 2042. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 6.2 mi (10 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 |
|---|---|---|
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sierra College Blv over Miners Ravine built?
It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2008.
What condition is Sierra College Blv over Miners Ravine 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 June 2024.
How much traffic does Sierra College Blv over Miners Ravine carry?
About 10,106 vehicles per day (2010 count), of which roughly 8% are trucks.
How long is Sierra College Blv over Miners Ravine?
The structure is 32 ft (9.8 m) long with a longest span of 11 ft (3.4 m).
Who owns Sierra College Blv over Miners Ravine?
It is owned by the County Highway Agency.