State Route 120 over Moccasin Creek
FairTuolumne County, California · 10-TUO-120-R24.09 · Structure no. 32 0039
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected September 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 347 ft
- 3 main spans
- Daily traffic
- 4,400
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 120 over Moccasin Creek is a concrete continuous box beam or girders - multiple carrying State Route 120 over Moccasin Creek in Tuolumne County, California. It was built in 1971, so it is 54 years old, younger 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 4,400 vehicles a day, roughly 5% of them trucks, projected to reach 7,750 by 2045. The structure is 347 ft (105.8 m) long and 43 ft wide. If it were closed, the detour would be 39.8 mi (64 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. |
| 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 120 over Moccasin Creek built?
It was built in 1971, making it 54 years old in 2025.
What condition is State Route 120 over Moccasin Creek 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 September 2023.
How much traffic does State Route 120 over Moccasin Creek carry?
About 4,400 vehicles per day (2009 count), of which roughly 5% are trucks.
How long is State Route 120 over Moccasin Creek?
The structure is 347 ft (105.8 m) long with a longest span of 145 ft (44.2 m) and a deck 43 ft wide.
Who owns State Route 120 over Moccasin Creek?
It is owned by the State Highway Agency.