State Route 120 over Hillside
FairMono County, California · 09-MNO-120-R3.71 · Structure no. 47 0007
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 82 ft
- 3 main spans
- Daily traffic
- 5,320
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 120 over Hillside is a steel stringer/multi-beam or girder carrying State Route 120 over Hillside in Mono County, California. It was built in 1966, so it is 59 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 5,320 vehicles a day, roughly 1% of them trucks, projected to reach 5,611 by 2042. The structure is 82 ft (25 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 120 over Hillside built?
It was built in 1966, making it 59 years old in 2025.
What condition is State Route 120 over Hillside 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 June 2024.
How much traffic does State Route 120 over Hillside carry?
About 5,320 vehicles per day (2020 count), of which roughly 1% are trucks.
How long is State Route 120 over Hillside?
The structure is 82 ft (25 m) long with a longest span of 37 ft (11.3 m) and a deck 34 ft wide.
Who owns State Route 120 over Hillside?
It is owned by the State Highway Agency.