Mountain House RD over Wilson Creek
GoodMendocino County, California · 2.8 MI S SR 101 · Structure no. 10C0144
- Built
- 1912
- 113 years old, rebuilt 1932
- Condition
- Good
- inspected February 2024
- Type
- Tee Beam
- Concrete
- Length
- 27 ft
- 1 main span
- Daily traffic
- 572
- 2011 count
- Owner
- County
- County Highway Agency
About this bridge
Mountain House RD over Wilson Creek is a concrete tee beam carrying Mountain House RD over Wilson Creek in Mendocino County, California. It was built in 1912 and reconstructed in 1932, so it is 113 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 572 vehicles a day, roughly 5% of them trucks, projected to reach 875 by 2042. The structure is 27 ft (8.1 m) long and 26 ft wide. If it were closed, the detour would be 21.7 mi (35 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mountain House RD over Wilson Creek built?
It was built in 1912, making it 113 years old in 2025. It was reconstructed in 1932.
What condition is Mountain House RD over Wilson 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 February 2024.
How much traffic does Mountain House RD over Wilson Creek carry?
About 572 vehicles per day (2011 count), of which roughly 5% are trucks.
How long is Mountain House RD over Wilson Creek?
The structure is 27 ft (8.1 m) long with a longest span of 25 ft (7.6 m) and a deck 26 ft wide.
Who owns Mountain House RD over Wilson Creek?
It is owned by the County Highway Agency.