State Route 20 over Morrison Creek
FairLake County, California · 01-LAK-020-16.81 · Structure no. 14 0004
- Built
- 1933
- 92 years old
- Condition
- Fair
- inspected October 2024
- Type
- Slab
- Concrete Continuous
- Length
- 62 ft
- 2 main spans
- Daily traffic
- 8,900
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 20 over Morrison Creek is a concrete continuous slab carrying State Route 20 over Morrison Creek in Lake County, California. It was built in 1933, so it is 92 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 6 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 8,900 vehicles a day, roughly 10% of them trucks, projected to reach 13,980 by 2042. The structure is 62 ft (18.9 m) long and 52 ft wide. If it were closed, the detour would be 44.1 mi (71 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 20 over Morrison Creek built?
It was built in 1933, making it 92 years old in 2025.
What condition is State Route 20 over Morrison Creek 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 October 2024.
How much traffic does State Route 20 over Morrison Creek carry?
About 8,900 vehicles per day (2009 count), of which roughly 10% are trucks.
How long is State Route 20 over Morrison Creek?
The structure is 62 ft (18.9 m) long with a longest span of 30 ft (9.1 m) and a deck 52 ft wide.
Who owns State Route 20 over Morrison Creek?
It is owned by the State Highway Agency.