Lower Rock Crk RD over Rock Creek
GoodMono County, California · 1.9 MI S/O JCT US 395 · Structure no. 47C0016
- Built
- 1920
- 105 years old, rebuilt 1934
- Condition
- Good
- inspected September 2024
- Type
- Tee Beam
- Concrete
- Length
- 23 ft
- 1 main span
- Daily traffic
- 520
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Lower Rock Crk RD over Rock Creek is a concrete tee beam carrying Lower Rock Crk RD over Rock Creek in Mono County, California. It was built in 1920 and reconstructed in 1934, so it is 105 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 520 vehicles a day, roughly 1% of them trucks, projected to reach 728 by 2042. The structure is 23 ft (7 m) long and 29 ft wide. If it were closed, the detour would be 9.3 mi (15 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Lower Rock Crk RD over Rock Creek built?
It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1934.
What condition is Lower Rock Crk RD over Rock Creek 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 2024.
How much traffic does Lower Rock Crk RD over Rock Creek carry?
About 520 vehicles per day (2022 count), of which roughly 1% are trucks.
How long is Lower Rock Crk RD over Rock Creek?
The structure is 23 ft (7 m) long with a longest span of 20 ft (6.1 m) and a deck 29 ft wide.
Who owns Lower Rock Crk RD over Rock Creek?
It is owned by the County Highway Agency.