North State ST over State Route 20
FairMendocino County, California · 01-MEN-020-33.31 · Structure no. 10 0206
- Built
- 1962
- 63 years old
- Condition
- Fair
- inspected June 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 158 ft
- 4 main spans
- Daily traffic
- 1,943
- 2008 count
- Owner
- State
- State Highway Agency
About this bridge
North State ST over State Route 20 is a concrete continuous tee beam carrying North State ST over State Route 20 in Mendocino County, California. It was built in 1962, so it is 63 years old, older 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 1,943 vehicles a day, roughly 4% of them trucks, projected to reach 2,600 by 2042. The structure is 158 ft (48.2 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was North State ST over State Route 20 built?
It was built in 1962, making it 63 years old in 2025.
What condition is North State ST over State Route 20 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 June 2024.
How much traffic does North State ST over State Route 20 carry?
About 1,943 vehicles per day (2008 count), of which roughly 4% are trucks.
How long is North State ST over State Route 20?
The structure is 158 ft (48.2 m) long with a longest span of 48 ft (14.6 m) and a deck 34 ft wide.
Who owns North State ST over State Route 20?
It is owned by the State Highway Agency.