State Route 99 SB over Tuolumne Blvd
GoodStanislaus County, California · 10-STA-099-R15.10 · Structure no. 38 0096L
- Built
- 1963
- 62 years old
- Condition
- Good
- inspected March 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 160 ft
- 2 main spans
- Daily traffic
- 52,500
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 SB over Tuolumne Blvd is a concrete continuous box beam or girders - multiple carrying State Route 99 SB over Tuolumne Blvd in Stanislaus County, California. It was built in 1963, so it is 62 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 52,500 vehicles a day, roughly 12% of them trucks, projected to reach 65,480 by 2041. The structure is 160 ft (48.8 m) long and 54 ft wide. If it were closed, the detour would be 0.6 mi (1 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 99 SB over Tuolumne Blvd built?
It was built in 1963, making it 62 years old in 2025.
What condition is State Route 99 SB over Tuolumne Blvd 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 March 2023.
How much traffic does State Route 99 SB over Tuolumne Blvd carry?
About 52,500 vehicles per day (2009 count), of which roughly 12% are trucks.
How long is State Route 99 SB over Tuolumne Blvd?
The structure is 160 ft (48.8 m) long with a longest span of 79 ft (24.1 m) and a deck 54 ft wide.
Who owns State Route 99 SB over Tuolumne Blvd?
It is owned by the State Highway Agency.