State Route 120 over Hillside
GoodTuolumne County, California · 10-TUO-120-R44.84 · Structure no. 32 0055
- Built
- 1970
- 55 years old
- Condition
- Good
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 427 ft
- 4 main spans
- Daily traffic
- 3,650
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 120 over Hillside is a prestressed concrete continuous stringer/multi-beam or girder carrying State Route 120 over Hillside in Tuolumne County, California. It was built in 1970, so it is 55 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 3,650 vehicles a day, projected to reach 3,186 by 2045. The structure is 427 ft (130 m) long and 35 ft wide. If it were closed, the detour would be 44.7 mi (72 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 120 over Hillside built?
It was built in 1970, making it 55 years old in 2025.
What condition is State Route 120 over Hillside 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 120 over Hillside carry?
About 3,650 vehicles per day (2009 count).
How long is State Route 120 over Hillside?
The structure is 427 ft (130 m) long with a longest span of 107 ft (32.7 m) and a deck 35 ft wide.
Who owns State Route 120 over Hillside?
It is owned by the State Highway Agency.