State Route 99 over Mitchell RD
FairStanislaus County, California · 10-STA-099-R10.16 · Structure no. 38 0093
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected March 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 160 ft
- 3 main spans
- Daily traffic
- 96,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 over Mitchell RD is a concrete continuous tee beam carrying State Route 99 over Mitchell RD in Stanislaus County, California. It was built in 1965, so it is 60 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 5 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 96,000 vehicles a day, roughly 17% of them trucks, projected to reach 128,469 by 2045. The structure is 160 ft (48.8 m) long and 113 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 99 over Mitchell RD built?
It was built in 1965, making it 60 years old in 2025.
What condition is State Route 99 over Mitchell RD 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 March 2023.
How much traffic does State Route 99 over Mitchell RD carry?
About 96,000 vehicles per day (2009 count), of which roughly 17% are trucks.
How long is State Route 99 over Mitchell RD?
The structure is 160 ft (48.8 m) long with a longest span of 71 ft (21.6 m) and a deck 113 ft wide.
Who owns State Route 99 over Mitchell RD?
It is owned by the State Highway Agency.