State Route 140 over Miles Creek
FairMariposa County, California · 10-MPA-140-0.79 · Structure no. 40 0011
- Built
- 1916
- 109 years old, rebuilt 1929
- Condition
- Fair
- inspected July 2024
- Type
- Tee Beam
- Concrete
- Length
- 31 ft
- 1 main span
- Daily traffic
- 4,650
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 140 over Miles Creek is a concrete tee beam carrying State Route 140 over Miles Creek in Mariposa County, California. It was built in 1916 and reconstructed in 1929, so it is 109 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 4,650 vehicles a day, roughly 5% of them trucks, projected to reach 4,626 by 2042. The structure is 31 ft (9.4 m) long and 37 ft wide. If it were closed, the detour would be 39.1 mi (63 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 140 over Miles Creek built?
It was built in 1916, making it 109 years old in 2025. It was reconstructed in 1929.
What condition is State Route 140 over Miles 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 Miles Creek carry?
About 4,650 vehicles per day (2009 count), of which roughly 5% are trucks.
How long is State Route 140 over Miles Creek?
The structure is 31 ft (9.4 m) long with a longest span of 28 ft (8.5 m) and a deck 37 ft wide.
Who owns State Route 140 over Miles Creek?
It is owned by the State Highway Agency.