State Route 140 over Miles Creek
PoorMariposa County, California · 10-MPA-140-3.64 · Structure no. 40 0016
- Built
- 1928
- 97 years old
- Condition
- Poor
- inspected July 2024
- Type
- Tee Beam
- Concrete
- Length
- 24 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 1928, so it is 97 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 4,650 vehicles a day, roughly 5% of them trucks, projected to reach 4,688 by 2046. The structure is 24 ft (7.3 m) long and 38 ft wide. If it were closed, the detour would be 32.9 mi (53 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 4 Poor | Advanced section loss, deterioration, 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 1928, making it 97 years old in 2025.
What condition is State Route 140 over Miles Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. 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 24 ft (7.3 m) long with a longest span of 20 ft (6.1 m) and a deck 38 ft wide.
Who owns State Route 140 over Miles Creek?
It is owned by the State Highway Agency.