Old Highway Road over Agua Fria Creek
FairMariposa County, California · 4.7 MI SW of SR 49 · Structure no. 40C0003
- Built
- 1919
- 106 years old, rebuilt 1970
- Condition
- Fair
- inspected September 2023
- Type
- Slab
- Concrete Continuous
- Length
- 177 ft
- 2 main spans
- Daily traffic
- 180
- 2005 count
- Owner
- County
- County Highway Agency
About this bridge
Old Highway Road over Agua Fria Creek is a concrete continuous slab carrying Old Highway Road over Agua Fria Creek in Mariposa County, California. It was built in 1919 and reconstructed in 1970, so it is 106 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 5 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 180 vehicles a day, roughly 2% of them trucks, projected to reach 695 by 2040. The structure is 177 ft (53.8 m) long and 24 ft wide. If it were closed, the detour would be 24.9 mi (40 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Highway Road over Agua Fria Creek built?
It was built in 1919, making it 106 years old in 2025. It was reconstructed in 1970.
What condition is Old Highway Road over Agua Fria 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 September 2023.
How much traffic does Old Highway Road over Agua Fria Creek carry?
About 180 vehicles per day (2005 count), of which roughly 2% are trucks.
How long is Old Highway Road over Agua Fria Creek?
The structure is 177 ft (53.8 m) long with a longest span of 22 ft (6.7 m) and a deck 24 ft wide.
Who owns Old Highway Road over Agua Fria Creek?
It is owned by the County Highway Agency.