State Route 46 over Main Drain Canal
FairKern County, California · 06-KER-046-34.63 · Structure no. 50 0028
- Built
- 1956
- 69 years old
- Condition
- Fair
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 47 ft
- 1 main span
- Daily traffic
- 6,100
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 46 over Main Drain Canal is a prestressed concrete stringer/multi-beam or girder carrying State Route 46 over Main Drain Canal in Kern County, California. It was built in 1956, so it is 69 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 6,100 vehicles a day, roughly 39% of them trucks, projected to reach 9,610 by 2042. The structure is 47 ft (14.3 m) long and 42 ft wide. If it were closed, the detour would be 31.1 mi (50 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 46 over Main Drain Canal built?
It was built in 1956, making it 69 years old in 2025.
What condition is State Route 46 over Main Drain Canal 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 April 2024.
How much traffic does State Route 46 over Main Drain Canal carry?
About 6,100 vehicles per day (2009 count), of which roughly 39% are trucks.
How long is State Route 46 over Main Drain Canal?
The structure is 47 ft (14.3 m) long with a longest span of 45 ft (13.7 m) and a deck 42 ft wide.
Who owns State Route 46 over Main Drain Canal?
It is owned by the State Highway Agency.