State Route 108 over West Walker River
GoodMono County, California · 09-MNO-108-12.93 · Structure no. 47 0020
- Built
- 1940
- 85 years old
- Condition
- Good
- inspected September 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 150 ft
- 3 main spans
- Daily traffic
- 3,050
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 108 over West Walker River is a concrete continuous box beam or girders - multiple carrying State Route 108 over West Walker River in Mono County, California. It was built in 1940, so it is 85 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 3,050 vehicles a day, roughly 3% of them trucks, projected to reach 3,716 by 2042. The structure is 150 ft (45.7 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 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 State Route 108 over West Walker River built?
It was built in 1940, making it 85 years old in 2025.
What condition is State Route 108 over West Walker 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 September 2024.
How much traffic does State Route 108 over West Walker River carry?
About 3,050 vehicles per day (2019 count), of which roughly 3% are trucks.
How long is State Route 108 over West Walker River?
The structure is 150 ft (45.7 m) long with a longest span of 100 ft (30.5 m) and a deck 29 ft wide.
Who owns State Route 108 over West Walker River?
It is owned by the State Highway Agency.