Lake Mendocino DR over Russian River
FairMendocino County, California · 1 MI E of US 101 · Structure no. 10C0057
- Built
- 1987
- 38 years old
- Condition
- Fair
- inspected February 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 260 ft
- 3 main spans
- Daily traffic
- 2,514
- 2011 count
- Owner
- County
- County Highway Agency
About this bridge
Lake Mendocino DR over Russian River is a prestressed concrete continuous box beam or girders - multiple carrying Lake Mendocino DR over Russian River in Mendocino County, California. It was built in 1987, so it is 38 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 2,514 vehicles a day, roughly 2% of them trucks, projected to reach 2,781 by 2042. The structure is 260 ft (79.2 m) long and 52 ft wide. If it were closed, the detour would be 6.8 mi (11 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Lake Mendocino DR over Russian River built?
It was built in 1987, making it 38 years old in 2025.
What condition is Lake Mendocino DR over Russian River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.
How much traffic does Lake Mendocino DR over Russian River carry?
About 2,514 vehicles per day (2011 count), of which roughly 2% are trucks.
How long is Lake Mendocino DR over Russian River?
The structure is 260 ft (79.2 m) long with a longest span of 100 ft (30.5 m) and a deck 52 ft wide.
Who owns Lake Mendocino DR over Russian River?
It is owned by the County Highway Agency.