Railroad Flat Road over Mokelumne River
GoodCalaveras County, California · 3.7 Miles SE of SR 26 · Structure no. 30C0037
- Built
- 1999
- 26 years old
- Condition
- Good
- inspected March 2024
- Type
- Slab
- Concrete Continuous
- Length
- 135 ft
- 3 main spans
- Daily traffic
- 700
- 2006 count
- Owner
- County
- County Highway Agency
About this bridge
Railroad Flat Road over Mokelumne River is a concrete continuous slab carrying Railroad Flat Road over Mokelumne River in Calaveras County, California. It was built in 1999, so it is 26 years old, younger 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 700 vehicles a day, roughly 1% of them trucks, projected to reach 1,095 by 2042. The structure is 135 ft (41 m) long and 32 ft wide. If it were closed, the detour would be 14.3 mi (23 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Railroad Flat Road over Mokelumne River built?
It was built in 1999, making it 26 years old in 2025.
What condition is Railroad Flat Road over Mokelumne River 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 March 2024.
How much traffic does Railroad Flat Road over Mokelumne River carry?
About 700 vehicles per day (2006 count), of which roughly 1% are trucks.
How long is Railroad Flat Road over Mokelumne River?
The structure is 135 ft (41 m) long with a longest span of 45 ft (13.7 m) and a deck 32 ft wide.
Who owns Railroad Flat Road over Mokelumne River?
It is owned by the County Highway Agency.