Orr Springs RD over South Fork Big River
GoodMendocino County, California · 14.8 MI W SH 101 · Structure no. 10C0155
- Built
- 1976
- 49 years old
- Condition
- Good
- inspected March 2022
- Type
- Slab
- Concrete Continuous
- Length
- 106 ft
- 4 main spans
- Daily traffic
- 134
- 2011 count
- Owner
- County
- County Highway Agency
About this bridge
Orr Springs RD over South Fork Big River is a concrete continuous slab carrying Orr Springs RD over South Fork Big River in Mendocino County, California. It was built in 1976, so it is 49 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 134 vehicles a day, roughly 10% of them trucks, projected to reach 546 by 2040. The structure is 106 ft (32.4 m) long and 29 ft wide. If it were closed, the detour would be 34.8 mi (56 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Orr Springs RD over South Fork Big River built?
It was built in 1976, making it 49 years old in 2025.
What condition is Orr Springs RD over South Fork Big 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 2022.
How much traffic does Orr Springs RD over South Fork Big River carry?
About 134 vehicles per day (2011 count), of which roughly 10% are trucks.
How long is Orr Springs RD over South Fork Big River?
The structure is 106 ft (32.4 m) long with a longest span of 32 ft (9.8 m) and a deck 29 ft wide.
Who owns Orr Springs RD over South Fork Big River?
It is owned by the County Highway Agency.