Rock Creek Road over Rock Creek Overflow
FairCalaveras County, California · 1.8 MI SE of Milton · Structure no. 30C0005
- Built
- 1936
- 89 years old
- Condition
- Fair
- inspected February 2025
- Type
- Slab
- Concrete Continuous
- Length
- 32 ft
- 2 main spans
- Daily traffic
- 37
- 2011 count
- Owner
- County
- County Highway Agency
About this bridge
Rock Creek Road over Rock Creek Overflow is a concrete continuous slab carrying Rock Creek Road over Rock Creek Overflow in Calaveras County, California. It was built in 1936, so it is 89 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 37 vehicles a day, roughly 6% of them trucks, projected to reach 39 by 2047. The structure is 32 ft (9.8 m) long and 21 ft wide. If it were closed, the detour would be 16.2 mi (26 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Rock Creek Road over Rock Creek Overflow built?
It was built in 1936, making it 89 years old in 2025.
What condition is Rock Creek Road over Rock Creek Overflow 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 February 2025.
How much traffic does Rock Creek Road over Rock Creek Overflow carry?
About 37 vehicles per day (2011 count), of which roughly 6% are trucks.
How long is Rock Creek Road over Rock Creek Overflow?
The structure is 32 ft (9.8 m) long with a longest span of 16 ft (4.8 m) and a deck 21 ft wide.
Who owns Rock Creek Road over Rock Creek Overflow?
It is owned by the County Highway Agency.