State Route 49 over Jackass Gulch
GoodTuolumne County, California · 10-TUO-049-R2.99 · Structure no. 32 0033
- Built
- 1975
- 50 years old
- Condition
- Good
- inspected September 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 170 ft
- 3 main spans
- Daily traffic
- 765
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 49 over Jackass Gulch is a concrete continuous tee beam carrying State Route 49 over Jackass Gulch in Tuolumne County, California. It was built in 1975, so it is 50 years old, younger 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 765 vehicles a day, roughly 8% of them trucks, projected to reach 912 by 2041. The structure is 170 ft (51.8 m) long and 35 ft wide. If it were closed, the detour would be 8.7 mi (14 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. |
| 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 49 over Jackass Gulch built?
It was built in 1975, making it 50 years old in 2025.
What condition is State Route 49 over Jackass Gulch 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 September 2023.
How much traffic does State Route 49 over Jackass Gulch carry?
About 765 vehicles per day (2009 count), of which roughly 8% are trucks.
How long is State Route 49 over Jackass Gulch?
The structure is 170 ft (51.8 m) long with a longest span of 70 ft (21.3 m) and a deck 35 ft wide.
Who owns State Route 49 over Jackass Gulch?
It is owned by the State Highway Agency.