State Route 120 over Stanislaus River
PoorStanislaus County, California · 10-STA-120-4.26 · Structure no. 38 0023
- Built
- 1931
- 94 years old, rebuilt 1971
- Condition
- Poor
- inspected March 2024
- Type
- Tee Beam
- Concrete
- Length
- 417 ft
- 8 main spans
- Daily traffic
- 18,600
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 120 over Stanislaus River is a concrete tee beam carrying State Route 120 over Stanislaus River in Stanislaus County, California. It was built in 1931 and reconstructed in 1971, so it is 94 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 18,600 vehicles a day, roughly 13% of them trucks, projected to reach 43,335 by 2042. The structure is 417 ft (127 m) long and 47 ft wide. If it were closed, the detour would be 19.9 mi (32 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 120 over Stanislaus River built?
It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1971.
What condition is State Route 120 over Stanislaus River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.
How much traffic does State Route 120 over Stanislaus River carry?
About 18,600 vehicles per day (2015 count), of which roughly 13% are trucks.
How long is State Route 120 over Stanislaus River?
The structure is 417 ft (127 m) long with a longest span of 60 ft (18.3 m) and a deck 47 ft wide.
Who owns State Route 120 over Stanislaus River?
It is owned by the State Highway Agency.