State Route 99 over Turlock Canal
FairMerced County, California · 10-MER-099-R35.04 · Structure no. 39 0017
- Built
- 1935
- 90 years old, rebuilt 1971
- Condition
- Fair
- inspected December 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 36 ft
- 3 main spans
- Daily traffic
- 65,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 over Turlock Canal is a concrete continuous culvert carrying State Route 99 over Turlock Canal in Merced County, California. It was built in 1935 and reconstructed in 1971, 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 65,000 vehicles a day, roughly 25% of them trucks, projected to reach 93,978 by 2041. The structure is 36 ft (11 m) long and 68 ft wide. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Channel and channel protection | 9 Excellent | No problems noted. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 99 over Turlock Canal built?
It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1971.
What condition is State Route 99 over Turlock Canal 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 December 2023.
How much traffic does State Route 99 over Turlock Canal carry?
About 65,000 vehicles per day (2009 count), of which roughly 25% are trucks.
How long is State Route 99 over Turlock Canal?
The structure is 36 ft (11 m) long with a longest span of 10 ft (3.2 m) and a deck 68 ft wide.
Who owns State Route 99 over Turlock Canal?
It is owned by the State Highway Agency.