State Route 165 over Salt Slough
FairMerced County, California · 10-MER-165-22.34 · Structure no. 39 0209
- Built
- 1959
- 66 years old, rebuilt 2012
- Condition
- Fair
- inspected February 2025
- Type
- Slab
- Concrete Continuous
- Length
- 101 ft
- 4 main spans
- Daily traffic
- 5,100
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 165 over Salt Slough is a concrete continuous slab carrying State Route 165 over Salt Slough in Merced County, California. It was built in 1959 and reconstructed in 2012, so it is 66 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 5,100 vehicles a day, roughly 8% of them trucks, projected to reach 21,910 by 2047. The structure is 101 ft (30.8 m) long and 43 ft wide. If it were closed, the detour would be 14.3 mi (23 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 165 over Salt Slough built?
It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2012.
What condition is State Route 165 over Salt Slough 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 February 2025.
How much traffic does State Route 165 over Salt Slough carry?
About 5,100 vehicles per day (2009 count), of which roughly 8% are trucks.
How long is State Route 165 over Salt Slough?
The structure is 101 ft (30.8 m) long with a longest span of 28 ft (8.5 m) and a deck 43 ft wide.
Who owns State Route 165 over Salt Slough?
It is owned by the State Highway Agency.