State Route 140 over Mariposa Creek
FairMariposa County, California · 10-MPA-140-21.19 · Structure no. 40 0002
- Built
- 1932
- 93 years old, rebuilt 1974
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 110 ft
- 4 main spans
- Daily traffic
- 10,800
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 140 over Mariposa Creek is a steel stringer/multi-beam or girder carrying State Route 140 over Mariposa Creek in Mariposa County, California. It was built in 1932 and reconstructed in 1974, so it is 93 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 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 10,800 vehicles a day, roughly 3% of them trucks, projected to reach 5,007 by 2046. The structure is 110 ft (33.5 m) long and 44 ft wide. If it were closed, the detour would be 14.9 mi (24 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 140 over Mariposa Creek built?
It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1974.
What condition is State Route 140 over Mariposa 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 July 2024.
How much traffic does State Route 140 over Mariposa Creek carry?
About 10,800 vehicles per day (2009 count), of which roughly 3% are trucks.
How long is State Route 140 over Mariposa Creek?
The structure is 110 ft (33.5 m) long with a longest span of 28 ft (8.4 m) and a deck 44 ft wide.
Who owns State Route 140 over Mariposa Creek?
It is owned by the State Highway Agency.