State Route 140 over Merced River
GoodMariposa County, California · 10-MPA-140-49.85 · Structure no. 40 0009
- Built
- 1926
- 99 years old
- Condition
- Good
- inspected July 2024
- Type
- Tee Beam
- Concrete
- Length
- 176 ft
- 3 main spans
- Daily traffic
- 1,400
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 140 over Merced River is a concrete tee beam carrying State Route 140 over Merced River in Mariposa County, California. It was built in 1926, so it is 99 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 1,400 vehicles a day, roughly 5% of them trucks, projected to reach 1,172 by 2046. The structure is 176 ft (53.6 m) long and 34 ft wide. If it were closed, the detour would be 49.7 mi (80 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 140 over Merced River built?
It was built in 1926, making it 99 years old in 2025.
What condition is State Route 140 over Merced River 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 July 2024.
How much traffic does State Route 140 over Merced River carry?
About 1,400 vehicles per day (2009 count), of which roughly 5% are trucks.
How long is State Route 140 over Merced River?
The structure is 176 ft (53.6 m) long with a longest span of 58 ft (17.7 m) and a deck 34 ft wide.
Who owns State Route 140 over Merced River?
It is owned by the State Highway Agency.