Mariposa Road over S Br S Littlejohns Creek
GoodSan Joaquin County, California · 0.8 MI N/W Wagner RD · Structure no. 29C0177
- Built
- 1934
- 91 years old, rebuilt 1971
- Condition
- Good
- inspected January 2025
- Type
- Slab
- Concrete Continuous
- Length
- 51 ft
- 3 main spans
- Daily traffic
- 4,995
- 2011 count
- Owner
- County
- County Highway Agency
About this bridge
Mariposa Road over S Br S Littlejohns Creek is a concrete continuous slab carrying Mariposa Road over S Br S Littlejohns Creek in San Joaquin County, California. It was built in 1934 and reconstructed in 1971, so it is 91 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 4,995 vehicles a day, roughly 10% of them trucks, projected to reach 8,810 by 2047. The structure is 51 ft (15.5 m) long and 43 ft wide. 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mariposa Road over S Br S Littlejohns Creek built?
It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1971.
What condition is Mariposa Road over S Br S Littlejohns 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 January 2025.
How much traffic does Mariposa Road over S Br S Littlejohns Creek carry?
About 4,995 vehicles per day (2011 count), of which roughly 10% are trucks.
How long is Mariposa Road over S Br S Littlejohns Creek?
The structure is 51 ft (15.5 m) long with a longest span of 16 ft (5 m) and a deck 43 ft wide.
Who owns Mariposa Road over S Br S Littlejohns Creek?
It is owned by the County Highway Agency.