Oak Avenue over South Slough
FairMerced County, California · 0.8 MI E of Quinley Ave · Structure no. 39C0166
- Built
- 1935
- 90 years old
- Condition
- Fair
- inspected January 2024
- Type
- Slab
- Concrete
- Length
- 27 ft
- 1 main span
- Daily traffic
- 128
- 2008 count
- Owner
- County
- County Highway Agency
About this bridge
Oak Avenue over South Slough is a concrete slab carrying Oak Avenue over South Slough in Merced County, California. It was built in 1935, so it is 90 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 128 vehicles a day, roughly 34% of them trucks, projected to reach 524 by 2046. The structure is 27 ft (8.1 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Oak Avenue over South Slough built?
It was built in 1935, making it 90 years old in 2025.
What condition is Oak Avenue over South 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 January 2024.
How much traffic does Oak Avenue over South Slough carry?
About 128 vehicles per day (2008 count), of which roughly 34% are trucks.
How long is Oak Avenue over South Slough?
The structure is 27 ft (8.1 m) long with a longest span of 25 ft (7.6 m) and a deck 24 ft wide.
Who owns Oak Avenue over South Slough?
It is owned by the County Highway Agency.