Alpine RD over Calaveras River
GoodSan Joaquin County, California · 0.2 MI S Foppiano LN · Structure no. 29C0207
- Built
- 1977
- 48 years old
- Condition
- Good
- inspected February 2025
- Type
- Slab
- Concrete Continuous
- Length
- 72 ft
- 3 main spans
- Daily traffic
- 706
- 2013 count
- Owner
- County
- County Highway Agency
About this bridge
Alpine RD over Calaveras River is a concrete continuous slab carrying Alpine RD over Calaveras River in San Joaquin County, California. It was built in 1977, so it is 48 years old, younger 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 706 vehicles a day, roughly 15% of them trucks, projected to reach 946 by 2047. The structure is 72 ft (21.9 m) long and 32 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Alpine RD over Calaveras River built?
It was built in 1977, making it 48 years old in 2025.
What condition is Alpine RD over Calaveras River 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 February 2025.
How much traffic does Alpine RD over Calaveras River carry?
About 706 vehicles per day (2013 count), of which roughly 15% are trucks.
How long is Alpine RD over Calaveras River?
The structure is 72 ft (21.9 m) long with a longest span of 28 ft (8.5 m) and a deck 32 ft wide.
Who owns Alpine RD over Calaveras River?
It is owned by the County Highway Agency.